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Merge remote-tracking branch 'origin/master' into llvm7

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This commit is contained in:
Andrew Kelley 2018-04-11 18:27:06 -04:00
commit ce68dda4b6
38 changed files with 8519 additions and 1894 deletions
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13
CMakeLists.txt
View File

@ -5,6 +5,11 @@ if(NOT CMAKE_BUILD_TYPE)
"Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel." FORCE)
endif()
if(NOT CMAKE_INSTALL_PREFIX)
set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}" CACHE STRING
"Directory to install zig to" FORCE)
endif()
project(zig C CXX)
set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake ${CMAKE_MODULE_PATH})
@ -432,12 +437,17 @@ set(ZIG_STD_FILES
"dwarf.zig"
"elf.zig"
"empty.zig"
"endian.zig"
"event.zig"
"fmt/errol/enum3.zig"
"fmt/errol/index.zig"
"fmt/errol/lookup.zig"
"fmt/index.zig"
"hash_map.zig"
"hash/index.zig"
"hash/adler.zig"
"hash/crc.zig"
"hash/fnv.zig"
"hash/siphash.zig"
"heap.zig"
"index.zig"
"io.zig"
@ -498,7 +508,6 @@ set(ZIG_STD_FILES
"os/get_user_id.zig"
"os/index.zig"
"os/linux/errno.zig"
"os/linux/i386.zig"
"os/linux/index.zig"
"os/linux/x86_64.zig"
"os/path.zig"

8
README.md
View File

@ -141,10 +141,10 @@ libc. Create demo games using Zig.
```
mkdir build
cd build
cmake .. -DCMAKE_INSTALL_PREFIX=$(pwd)
cmake ..
make
make install
./zig build --build-file ../build.zig test
bin/zig build --build-file ../build.zig test
```
##### MacOS
@ -154,9 +154,9 @@ brew install cmake llvm@7
brew outdated llvm@7 || brew upgrade llvm@7
mkdir build
cd build
cmake .. -DCMAKE_PREFIX_PATH=/usr/local/opt/llvm@7/ -DCMAKE_INSTALL_PREFIX=$(pwd)
cmake .. -DCMAKE_PREFIX_PATH=/usr/local/opt/llvm@7/
make install
./zig build --build-file ../build.zig test
bin/zig build --build-file ../build.zig test
```
##### Windows

42
doc/langref.html.in
View File

@ -1947,8 +1947,24 @@ const Foo = extern enum { A, B, C };
export fn entry(foo: Foo) void { }
{#code_end#}
{#header_close#}
<p>TODO packed enum</p>
{#see_also|@memberName|@memberCount|@tagName#}
{#header_open|packed enum#}
<p>By default, the size of enums is not guaranteed.</p>
<p><code>packed enum</code> causes the size of the enum to be the same as the size of the integer tag type
of the enum:</p>
{#code_begin|test#}
const std = @import("std");
test "packed enum" {
const Number = packed enum(u8) {
One,
Two,
Three,
};
std.debug.assert(@sizeOf(Number) == @sizeOf(u8));
}
{#code_end#}
{#header_close#}
{#see_also|@memberName|@memberCount|@tagName|@sizeOf#}
{#header_close#}
{#header_open|union#}
{#code_begin|test|union#}
@ -2017,7 +2033,27 @@ test "union variant switch" {
assert(mem.eql(u8, what_is_it, "this is a number"));
}
// TODO union methods
// Unions can have methods just like structs and enums:
const Variant = union(enum) {
Int: i32,
Bool: bool,
fn truthy(self: &const Variant) bool {
return switch (*self) {
Variant.Int => |x_int| x_int != 0,
Variant.Bool => |x_bool| x_bool,
};
}
};
test "union method" {
var v1 = Variant { .Int = 1 };
var v2 = Variant { .Bool = false };
assert(v1.truthy());
assert(!v2.truthy());
}
const Small = union {

1
src-self-hosted/main.zig
View File

@ -741,6 +741,7 @@ fn fmtMain(allocator: &mem.Allocator, file_paths: []const []const u8) !void {
defer baf.destroy();
try parser.renderSource(baf.stream(), tree.root_node);
try baf.finish();
}
}

44
src/all_types.hpp
View File

@ -359,7 +359,6 @@ enum NodeType {
NodeTypeRoot,
NodeTypeFnProto,
NodeTypeFnDef,
NodeTypeFnDecl,
NodeTypeParamDecl,
NodeTypeBlock,
NodeTypeGroupedExpr,
@ -453,10 +452,6 @@ struct AstNodeFnDef {
AstNode *body;
};
struct AstNodeFnDecl {
AstNode *fn_proto;
};
struct AstNodeParamDecl {
Buf *name;
AstNode *type;
@ -713,10 +708,6 @@ struct AstNodeSwitchRange {
AstNode *end;
};
struct AstNodeLabel {
Buf *name;
};
struct AstNodeCompTime {
AstNode *expr;
};
@ -892,7 +883,6 @@ struct AstNode {
union {
AstNodeRoot root;
AstNodeFnDef fn_def;
AstNodeFnDecl fn_decl;
AstNodeFnProto fn_proto;
AstNodeParamDecl param_decl;
AstNodeBlock block;
@ -917,7 +907,6 @@ struct AstNode {
AstNodeSwitchExpr switch_expr;
AstNodeSwitchProng switch_prong;
AstNodeSwitchRange switch_range;
AstNodeLabel label;
AstNodeCompTime comptime_expr;
AstNodeAsmExpr asm_expr;
AstNodeFieldAccessExpr field_access_expr;
@ -1654,6 +1643,8 @@ struct CodeGen {
LLVMValueRef coro_save_fn_val;
LLVMValueRef coro_promise_fn_val;
LLVMValueRef coro_alloc_helper_fn_val;
LLVMValueRef merge_err_ret_traces_fn_val;
LLVMValueRef add_error_return_trace_addr_fn_val;
bool error_during_imports;
const char **clang_argv;
@ -2052,6 +2043,8 @@ enum IrInstructionId {
IrInstructionIdAwaitBookkeeping,
IrInstructionIdSaveErrRetAddr,
IrInstructionIdAddImplicitReturnType,
IrInstructionIdMergeErrRetTraces,
IrInstructionIdMarkErrRetTracePtr,
};
struct IrInstruction {
@ -2890,6 +2883,11 @@ struct IrInstructionExport {
struct IrInstructionErrorReturnTrace {
IrInstruction base;
enum Nullable {
Null,
NonNull,
} nullable;
};
struct IrInstructionErrorUnion {
@ -3022,6 +3020,20 @@ struct IrInstructionAddImplicitReturnType {
IrInstruction *value;
};
struct IrInstructionMergeErrRetTraces {
IrInstruction base;
IrInstruction *coro_promise_ptr;
IrInstruction *src_err_ret_trace_ptr;
IrInstruction *dest_err_ret_trace_ptr;
};
struct IrInstructionMarkErrRetTracePtr {
IrInstruction base;
IrInstruction *err_ret_trace_ptr;
};
static const size_t slice_ptr_index = 0;
static const size_t slice_len_index = 1;
@ -3031,10 +3043,18 @@ static const size_t maybe_null_index = 1;
static const size_t err_union_err_index = 0;
static const size_t err_union_payload_index = 1;
// TODO call graph analysis to find out what this number needs to be for every function
static const size_t stack_trace_ptr_count = 30;
// these belong to the async function
#define RETURN_ADDRESSES_FIELD_NAME "return_addresses"
#define ERR_RET_TRACE_FIELD_NAME "err_ret_trace"
#define RESULT_FIELD_NAME "result"
#define ASYNC_ALLOC_FIELD_NAME "allocFn"
#define ASYNC_FREE_FIELD_NAME "freeFn"
#define AWAITER_HANDLE_FIELD_NAME "awaiter_handle"
#define RESULT_FIELD_NAME "result"
// these point to data belonging to the awaiter
#define ERR_RET_TRACE_PTR_FIELD_NAME "err_ret_trace_ptr"
#define RESULT_PTR_FIELD_NAME "result_ptr"

27
src/analyze.cpp
View File

@ -468,10 +468,30 @@ TypeTableEntry *get_promise_frame_type(CodeGen *g, TypeTableEntry *return_type)
TypeTableEntry *awaiter_handle_type = get_maybe_type(g, g->builtin_types.entry_promise);
TypeTableEntry *result_ptr_type = get_pointer_to_type(g, return_type, false);
const char *field_names[] = {AWAITER_HANDLE_FIELD_NAME, RESULT_FIELD_NAME, RESULT_PTR_FIELD_NAME};
TypeTableEntry *field_types[] = {awaiter_handle_type, return_type, result_ptr_type};
ZigList<const char *> field_names = {};
field_names.append(AWAITER_HANDLE_FIELD_NAME);
field_names.append(RESULT_FIELD_NAME);
field_names.append(RESULT_PTR_FIELD_NAME);
if (g->have_err_ret_tracing) {
field_names.append(ERR_RET_TRACE_PTR_FIELD_NAME);
field_names.append(ERR_RET_TRACE_FIELD_NAME);
field_names.append(RETURN_ADDRESSES_FIELD_NAME);
}
ZigList<TypeTableEntry *> field_types = {};
field_types.append(awaiter_handle_type);
field_types.append(return_type);
field_types.append(result_ptr_type);
if (g->have_err_ret_tracing) {
field_types.append(get_ptr_to_stack_trace_type(g));
field_types.append(g->stack_trace_type);
field_types.append(get_array_type(g, g->builtin_types.entry_usize, stack_trace_ptr_count));
}
assert(field_names.length == field_types.length);
Buf *name = buf_sprintf("AsyncFramePromise(%s)", buf_ptr(&return_type->name));
TypeTableEntry *entry = get_struct_type(g, buf_ptr(name), field_names, field_types, 3);
TypeTableEntry *entry = get_struct_type(g, buf_ptr(name), field_names.items, field_types.items, field_names.length);
return_type->promise_frame_parent = entry;
return entry;
@ -3216,7 +3236,6 @@ void scan_decls(CodeGen *g, ScopeDecls *decls_scope, AstNode *node) {
break;
case NodeTypeContainerDecl:
case NodeTypeParamDecl:
case NodeTypeFnDecl:
case NodeTypeReturnExpr:
case NodeTypeDefer:
case NodeTypeBlock:

3
src/ast_render.cpp
View File

@ -148,8 +148,6 @@ static const char *node_type_str(NodeType node_type) {
return "Root";
case NodeTypeFnDef:
return "FnDef";
case NodeTypeFnDecl:
return "FnDecl";
case NodeTypeFnProto:
return "FnProto";
case NodeTypeParamDecl:
@ -1098,7 +1096,6 @@ static void render_node_extra(AstRender *ar, AstNode *node, bool grouped) {
}
break;
}
case NodeTypeFnDecl:
case NodeTypeParamDecl:
case NodeTypeTestDecl:
case NodeTypeStructField:

333
src/codegen.cpp
View File

@ -412,6 +412,9 @@ static uint32_t get_err_ret_trace_arg_index(CodeGen *g, FnTableEntry *fn_table_e
if (!g->have_err_ret_tracing) {
return UINT32_MAX;
}
if (fn_table_entry->type_entry->data.fn.fn_type_id.cc == CallingConventionAsync) {
return 0;
}
TypeTableEntry *fn_type = fn_table_entry->type_entry;
if (!fn_type_can_fail(&fn_type->data.fn.fn_type_id)) {
return UINT32_MAX;
@ -1099,6 +1102,207 @@ static LLVMValueRef get_return_address_fn_val(CodeGen *g) {
return g->return_address_fn_val;
}
static LLVMValueRef get_add_error_return_trace_addr_fn(CodeGen *g) {
if (g->add_error_return_trace_addr_fn_val != nullptr)
return g->add_error_return_trace_addr_fn_val;
LLVMTypeRef arg_types[] = {
get_ptr_to_stack_trace_type(g)->type_ref,
g->builtin_types.entry_usize->type_ref,
};
LLVMTypeRef fn_type_ref = LLVMFunctionType(LLVMVoidType(), arg_types, 2, false);
Buf *fn_name = get_mangled_name(g, buf_create_from_str("__zig_add_err_ret_trace_addr"), false);
LLVMValueRef fn_val = LLVMAddFunction(g->module, buf_ptr(fn_name), fn_type_ref);
addLLVMFnAttr(fn_val, "alwaysinline");
LLVMSetLinkage(fn_val, LLVMInternalLinkage);
LLVMSetFunctionCallConv(fn_val, get_llvm_cc(g, CallingConventionUnspecified));
addLLVMFnAttr(fn_val, "nounwind");
add_uwtable_attr(g, fn_val);
addLLVMArgAttr(fn_val, (unsigned)0, "nonnull");
if (g->build_mode == BuildModeDebug) {
ZigLLVMAddFunctionAttr(fn_val, "no-frame-pointer-elim", "true");
ZigLLVMAddFunctionAttr(fn_val, "no-frame-pointer-elim-non-leaf", nullptr);
}
LLVMBasicBlockRef entry_block = LLVMAppendBasicBlock(fn_val, "Entry");
LLVMBasicBlockRef prev_block = LLVMGetInsertBlock(g->builder);
LLVMValueRef prev_debug_location = LLVMGetCurrentDebugLocation(g->builder);
LLVMPositionBuilderAtEnd(g->builder, entry_block);
ZigLLVMClearCurrentDebugLocation(g->builder);
LLVMTypeRef usize_type_ref = g->builtin_types.entry_usize->type_ref;
// stack_trace.instruction_addresses[stack_trace.index % stack_trace.instruction_addresses.len] = return_address;
LLVMValueRef err_ret_trace_ptr = LLVMGetParam(fn_val, 0);
LLVMValueRef address_value = LLVMGetParam(fn_val, 1);
size_t index_field_index = g->stack_trace_type->data.structure.fields[0].gen_index;
LLVMValueRef index_field_ptr = LLVMBuildStructGEP(g->builder, err_ret_trace_ptr, (unsigned)index_field_index, "");
size_t addresses_field_index = g->stack_trace_type->data.structure.fields[1].gen_index;
LLVMValueRef addresses_field_ptr = LLVMBuildStructGEP(g->builder, err_ret_trace_ptr, (unsigned)addresses_field_index, "");
TypeTableEntry *slice_type = g->stack_trace_type->data.structure.fields[1].type_entry;
size_t ptr_field_index = slice_type->data.structure.fields[slice_ptr_index].gen_index;
LLVMValueRef ptr_field_ptr = LLVMBuildStructGEP(g->builder, addresses_field_ptr, (unsigned)ptr_field_index, "");
size_t len_field_index = slice_type->data.structure.fields[slice_len_index].gen_index;
LLVMValueRef len_field_ptr = LLVMBuildStructGEP(g->builder, addresses_field_ptr, (unsigned)len_field_index, "");
LLVMValueRef len_value = gen_load_untyped(g, len_field_ptr, 0, false, "");
LLVMValueRef index_val = gen_load_untyped(g, index_field_ptr, 0, false, "");
LLVMValueRef modded_val = LLVMBuildURem(g->builder, index_val, len_value, "");
LLVMValueRef address_indices[] = {
modded_val,
};
LLVMValueRef ptr_value = gen_load_untyped(g, ptr_field_ptr, 0, false, "");
LLVMValueRef address_slot = LLVMBuildInBoundsGEP(g->builder, ptr_value, address_indices, 1, "");
gen_store_untyped(g, address_value, address_slot, 0, false);
// stack_trace.index += 1;
LLVMValueRef index_plus_one_val = LLVMBuildNUWAdd(g->builder, index_val, LLVMConstInt(usize_type_ref, 1, false), "");
gen_store_untyped(g, index_plus_one_val, index_field_ptr, 0, false);
// return;
LLVMBuildRetVoid(g->builder);
LLVMPositionBuilderAtEnd(g->builder, prev_block);
LLVMSetCurrentDebugLocation(g->builder, prev_debug_location);
g->add_error_return_trace_addr_fn_val = fn_val;
return fn_val;
}
static LLVMValueRef get_merge_err_ret_traces_fn_val(CodeGen *g) {
if (g->merge_err_ret_traces_fn_val)
return g->merge_err_ret_traces_fn_val;
assert(g->stack_trace_type != nullptr);
LLVMTypeRef param_types[] = {
get_ptr_to_stack_trace_type(g)->type_ref,
get_ptr_to_stack_trace_type(g)->type_ref,
};
LLVMTypeRef fn_type_ref = LLVMFunctionType(LLVMVoidType(), param_types, 2, false);
Buf *fn_name = get_mangled_name(g, buf_create_from_str("__zig_merge_error_return_traces"), false);
LLVMValueRef fn_val = LLVMAddFunction(g->module, buf_ptr(fn_name), fn_type_ref);
LLVMSetLinkage(fn_val, LLVMInternalLinkage);
LLVMSetFunctionCallConv(fn_val, get_llvm_cc(g, CallingConventionUnspecified));
addLLVMFnAttr(fn_val, "nounwind");
add_uwtable_attr(g, fn_val);
addLLVMArgAttr(fn_val, (unsigned)0, "nonnull");
addLLVMArgAttr(fn_val, (unsigned)0, "noalias");
addLLVMArgAttr(fn_val, (unsigned)0, "writeonly");
addLLVMArgAttr(fn_val, (unsigned)1, "nonnull");
addLLVMArgAttr(fn_val, (unsigned)1, "noalias");
addLLVMArgAttr(fn_val, (unsigned)1, "readonly");
if (g->build_mode == BuildModeDebug) {
ZigLLVMAddFunctionAttr(fn_val, "no-frame-pointer-elim", "true");
ZigLLVMAddFunctionAttr(fn_val, "no-frame-pointer-elim-non-leaf", nullptr);
}
// this is above the ZigLLVMClearCurrentDebugLocation
LLVMValueRef add_error_return_trace_addr_fn_val = get_add_error_return_trace_addr_fn(g);
LLVMBasicBlockRef entry_block = LLVMAppendBasicBlock(fn_val, "Entry");
LLVMBasicBlockRef prev_block = LLVMGetInsertBlock(g->builder);
LLVMValueRef prev_debug_location = LLVMGetCurrentDebugLocation(g->builder);
LLVMPositionBuilderAtEnd(g->builder, entry_block);
ZigLLVMClearCurrentDebugLocation(g->builder);
// var frame_index: usize = undefined;
// var frames_left: usize = undefined;
// if (src_stack_trace.index < src_stack_trace.instruction_addresses.len) {
// frame_index = 0;
// frames_left = src_stack_trace.index;
// if (frames_left == 0) return;
// } else {
// frame_index = (src_stack_trace.index + 1) % src_stack_trace.instruction_addresses.len;
// frames_left = src_stack_trace.instruction_addresses.len;
// }
// while (true) {
// __zig_add_err_ret_trace_addr(dest_stack_trace, src_stack_trace.instruction_addresses[frame_index]);
// frames_left -= 1;
// if (frames_left == 0) return;
// frame_index = (frame_index + 1) % src_stack_trace.instruction_addresses.len;
// }
LLVMBasicBlockRef return_block = LLVMAppendBasicBlock(fn_val, "Return");
LLVMValueRef frame_index_ptr = LLVMBuildAlloca(g->builder, g->builtin_types.entry_usize->type_ref, "frame_index");
LLVMValueRef frames_left_ptr = LLVMBuildAlloca(g->builder, g->builtin_types.entry_usize->type_ref, "frames_left");
LLVMValueRef dest_stack_trace_ptr = LLVMGetParam(fn_val, 0);
LLVMValueRef src_stack_trace_ptr = LLVMGetParam(fn_val, 1);
size_t src_index_field_index = g->stack_trace_type->data.structure.fields[0].gen_index;
size_t src_addresses_field_index = g->stack_trace_type->data.structure.fields[1].gen_index;
LLVMValueRef src_index_field_ptr = LLVMBuildStructGEP(g->builder, src_stack_trace_ptr,
(unsigned)src_index_field_index, "");
LLVMValueRef src_addresses_field_ptr = LLVMBuildStructGEP(g->builder, src_stack_trace_ptr,
(unsigned)src_addresses_field_index, "");
TypeTableEntry *slice_type = g->stack_trace_type->data.structure.fields[1].type_entry;
size_t ptr_field_index = slice_type->data.structure.fields[slice_ptr_index].gen_index;
LLVMValueRef src_ptr_field_ptr = LLVMBuildStructGEP(g->builder, src_addresses_field_ptr, (unsigned)ptr_field_index, "");
size_t len_field_index = slice_type->data.structure.fields[slice_len_index].gen_index;
LLVMValueRef src_len_field_ptr = LLVMBuildStructGEP(g->builder, src_addresses_field_ptr, (unsigned)len_field_index, "");
LLVMValueRef src_index_val = LLVMBuildLoad(g->builder, src_index_field_ptr, "");
LLVMValueRef src_ptr_val = LLVMBuildLoad(g->builder, src_ptr_field_ptr, "");
LLVMValueRef src_len_val = LLVMBuildLoad(g->builder, src_len_field_ptr, "");
LLVMValueRef no_wrap_bit = LLVMBuildICmp(g->builder, LLVMIntULT, src_index_val, src_len_val, "");
LLVMBasicBlockRef no_wrap_block = LLVMAppendBasicBlock(fn_val, "NoWrap");
LLVMBasicBlockRef yes_wrap_block = LLVMAppendBasicBlock(fn_val, "YesWrap");
LLVMBasicBlockRef loop_block = LLVMAppendBasicBlock(fn_val, "Loop");
LLVMBuildCondBr(g->builder, no_wrap_bit, no_wrap_block, yes_wrap_block);
LLVMPositionBuilderAtEnd(g->builder, no_wrap_block);
LLVMValueRef usize_zero = LLVMConstNull(g->builtin_types.entry_usize->type_ref);
LLVMBuildStore(g->builder, usize_zero, frame_index_ptr);
LLVMBuildStore(g->builder, src_index_val, frames_left_ptr);
LLVMValueRef frames_left_eq_zero_bit = LLVMBuildICmp(g->builder, LLVMIntEQ, src_index_val, usize_zero, "");
LLVMBuildCondBr(g->builder, frames_left_eq_zero_bit, return_block, loop_block);
LLVMPositionBuilderAtEnd(g->builder, yes_wrap_block);
LLVMValueRef usize_one = LLVMConstInt(g->builtin_types.entry_usize->type_ref, 1, false);
LLVMValueRef plus_one = LLVMBuildNUWAdd(g->builder, src_index_val, usize_one, "");
LLVMValueRef mod_len = LLVMBuildURem(g->builder, plus_one, src_len_val, "");
LLVMBuildStore(g->builder, mod_len, frame_index_ptr);
LLVMBuildStore(g->builder, src_len_val, frames_left_ptr);
LLVMBuildBr(g->builder, loop_block);
LLVMPositionBuilderAtEnd(g->builder, loop_block);
LLVMValueRef ptr_index = LLVMBuildLoad(g->builder, frame_index_ptr, "");
LLVMValueRef addr_ptr = LLVMBuildInBoundsGEP(g->builder, src_ptr_val, &ptr_index, 1, "");
LLVMValueRef this_addr_val = LLVMBuildLoad(g->builder, addr_ptr, "");
LLVMValueRef args[] = {dest_stack_trace_ptr, this_addr_val};
ZigLLVMBuildCall(g->builder, add_error_return_trace_addr_fn_val, args, 2, get_llvm_cc(g, CallingConventionUnspecified), ZigLLVM_FnInlineAlways, "");
LLVMValueRef prev_frames_left = LLVMBuildLoad(g->builder, frames_left_ptr, "");
LLVMValueRef new_frames_left = LLVMBuildNUWSub(g->builder, prev_frames_left, usize_one, "");
LLVMValueRef done_bit = LLVMBuildICmp(g->builder, LLVMIntEQ, new_frames_left, usize_zero, "");
LLVMBasicBlockRef continue_block = LLVMAppendBasicBlock(fn_val, "Continue");
LLVMBuildCondBr(g->builder, done_bit, return_block, continue_block);
LLVMPositionBuilderAtEnd(g->builder, return_block);
LLVMBuildRetVoid(g->builder);
LLVMPositionBuilderAtEnd(g->builder, continue_block);
LLVMBuildStore(g->builder, new_frames_left, frames_left_ptr);
LLVMValueRef prev_index = LLVMBuildLoad(g->builder, frame_index_ptr, "");
LLVMValueRef index_plus_one = LLVMBuildNUWAdd(g->builder, prev_index, usize_one, "");
LLVMValueRef index_mod_len = LLVMBuildURem(g->builder, index_plus_one, src_len_val, "");
LLVMBuildStore(g->builder, index_mod_len, frame_index_ptr);
LLVMBuildBr(g->builder, loop_block);
LLVMPositionBuilderAtEnd(g->builder, prev_block);
LLVMSetCurrentDebugLocation(g->builder, prev_debug_location);
g->merge_err_ret_traces_fn_val = fn_val;
return fn_val;
}
static LLVMValueRef get_return_err_fn(CodeGen *g) {
if (g->return_err_fn != nullptr)
return g->return_err_fn;
@ -1125,50 +1329,24 @@ static LLVMValueRef get_return_err_fn(CodeGen *g) {
ZigLLVMAddFunctionAttr(fn_val, "no-frame-pointer-elim-non-leaf", nullptr);
}
// this is above the ZigLLVMClearCurrentDebugLocation
LLVMValueRef add_error_return_trace_addr_fn_val = get_add_error_return_trace_addr_fn(g);
LLVMBasicBlockRef entry_block = LLVMAppendBasicBlock(fn_val, "Entry");
LLVMBasicBlockRef prev_block = LLVMGetInsertBlock(g->builder);
LLVMValueRef prev_debug_location = LLVMGetCurrentDebugLocation(g->builder);
LLVMPositionBuilderAtEnd(g->builder, entry_block);
ZigLLVMClearCurrentDebugLocation(g->builder);
LLVMTypeRef usize_type_ref = g->builtin_types.entry_usize->type_ref;
// stack_trace.instruction_addresses[stack_trace.index % stack_trace.instruction_addresses.len] = return_address;
LLVMValueRef err_ret_trace_ptr = LLVMGetParam(fn_val, 0);
size_t index_field_index = g->stack_trace_type->data.structure.fields[0].gen_index;
LLVMValueRef index_field_ptr = LLVMBuildStructGEP(g->builder, err_ret_trace_ptr, (unsigned)index_field_index, "");
size_t addresses_field_index = g->stack_trace_type->data.structure.fields[1].gen_index;
LLVMValueRef addresses_field_ptr = LLVMBuildStructGEP(g->builder, err_ret_trace_ptr, (unsigned)addresses_field_index, "");
TypeTableEntry *slice_type = g->stack_trace_type->data.structure.fields[1].type_entry;
size_t ptr_field_index = slice_type->data.structure.fields[slice_ptr_index].gen_index;
LLVMValueRef ptr_field_ptr = LLVMBuildStructGEP(g->builder, addresses_field_ptr, (unsigned)ptr_field_index, "");
size_t len_field_index = slice_type->data.structure.fields[slice_len_index].gen_index;
LLVMValueRef len_field_ptr = LLVMBuildStructGEP(g->builder, addresses_field_ptr, (unsigned)len_field_index, "");
LLVMValueRef len_value = gen_load_untyped(g, len_field_ptr, 0, false, "");
LLVMValueRef index_val = gen_load_untyped(g, index_field_ptr, 0, false, "");
LLVMValueRef modded_val = LLVMBuildURem(g->builder, index_val, len_value, "");
LLVMValueRef address_indices[] = {
modded_val,
};
LLVMValueRef ptr_value = gen_load_untyped(g, ptr_field_ptr, 0, false, "");
LLVMValueRef address_slot = LLVMBuildInBoundsGEP(g->builder, ptr_value, address_indices, 1, "");
LLVMTypeRef usize_type_ref = g->builtin_types.entry_usize->type_ref;
LLVMValueRef zero = LLVMConstNull(g->builtin_types.entry_i32->type_ref);
LLVMValueRef return_address_ptr = LLVMBuildCall(g->builder, get_return_address_fn_val(g), &zero, 1, "");
LLVMValueRef return_address = LLVMBuildPtrToInt(g->builder, return_address_ptr, usize_type_ref, "");
LLVMValueRef address_value = LLVMBuildPtrToInt(g->builder, return_address, usize_type_ref, "");
gen_store_untyped(g, address_value, address_slot, 0, false);
// stack_trace.index += 1;
LLVMValueRef index_plus_one_val = LLVMBuildAdd(g->builder, index_val, LLVMConstInt(usize_type_ref, 1, false), "");
gen_store_untyped(g, index_plus_one_val, index_field_ptr, 0, false);
// return;
LLVMValueRef args[] = { err_ret_trace_ptr, return_address };
ZigLLVMBuildCall(g->builder, add_error_return_trace_addr_fn_val, args, 2, get_llvm_cc(g, CallingConventionUnspecified), ZigLLVM_FnInlineAlways, "");
LLVMBuildRetVoid(g->builder);
LLVMPositionBuilderAtEnd(g->builder, prev_block);
@ -1608,7 +1786,6 @@ static LLVMValueRef ir_render_save_err_ret_addr(CodeGen *g, IrExecutable *execut
};
LLVMValueRef call_instruction = ZigLLVMBuildCall(g->builder, return_err_fn, args, 1,
get_llvm_cc(g, CallingConventionUnspecified), ZigLLVM_FnInlineAuto, "");
LLVMSetTailCall(call_instruction, true);
return call_instruction;
}
@ -4119,6 +4296,27 @@ static LLVMValueRef ir_render_atomic_rmw(CodeGen *g, IrExecutable *executable,
return LLVMBuildIntToPtr(g->builder, uncasted_result, operand_type->type_ref, "");
}
static LLVMValueRef ir_render_merge_err_ret_traces(CodeGen *g, IrExecutable *executable,
IrInstructionMergeErrRetTraces *instruction)
{
assert(g->have_err_ret_tracing);
LLVMValueRef src_trace_ptr = ir_llvm_value(g, instruction->src_err_ret_trace_ptr);
LLVMValueRef dest_trace_ptr = ir_llvm_value(g, instruction->dest_err_ret_trace_ptr);
LLVMValueRef args[] = { dest_trace_ptr, src_trace_ptr };
ZigLLVMBuildCall(g->builder, get_merge_err_ret_traces_fn_val(g), args, 2, get_llvm_cc(g, CallingConventionUnspecified), ZigLLVM_FnInlineAuto, "");
return nullptr;
}
static LLVMValueRef ir_render_mark_err_ret_trace_ptr(CodeGen *g, IrExecutable *executable,
IrInstructionMarkErrRetTracePtr *instruction)
{
assert(g->have_err_ret_tracing);
g->cur_err_ret_trace_val_stack = ir_llvm_value(g, instruction->err_ret_trace_ptr);
return nullptr;
}
static void set_debug_location(CodeGen *g, IrInstruction *instruction) {
AstNode *source_node = instruction->source_node;
Scope *scope = instruction->scope;
@ -4336,6 +4534,10 @@ static LLVMValueRef ir_render_instruction(CodeGen *g, IrExecutable *executable,
return ir_render_atomic_rmw(g, executable, (IrInstructionAtomicRmw *)instruction);
case IrInstructionIdSaveErrRetAddr:
return ir_render_save_err_ret_addr(g, executable, (IrInstructionSaveErrRetAddr *)instruction);
case IrInstructionIdMergeErrRetTraces:
return ir_render_merge_err_ret_traces(g, executable, (IrInstructionMergeErrRetTraces *)instruction);
case IrInstructionIdMarkErrRetTracePtr:
return ir_render_mark_err_ret_trace_ptr(g, executable, (IrInstructionMarkErrRetTracePtr *)instruction);
}
zig_unreachable();
}
@ -5225,38 +5427,14 @@ static void do_code_gen(CodeGen *g) {
g->cur_err_ret_trace_val_arg = nullptr;
}
// error return tracing setup
bool is_async = fn_table_entry->type_entry->data.fn.fn_type_id.cc == CallingConventionAsync;
bool have_err_ret_trace_stack = g->have_err_ret_tracing && fn_table_entry->calls_or_awaits_errorable_fn &&
(is_async || !have_err_ret_trace_arg);
bool have_err_ret_trace_stack = g->have_err_ret_tracing && fn_table_entry->calls_or_awaits_errorable_fn && !is_async && !have_err_ret_trace_arg;
LLVMValueRef err_ret_array_val = nullptr;
if (have_err_ret_trace_stack) {
// TODO call graph analysis to find out what this number needs to be for every function
static const size_t stack_trace_ptr_count = 30;
TypeTableEntry *usize = g->builtin_types.entry_usize;
TypeTableEntry *array_type = get_array_type(g, usize, stack_trace_ptr_count);
LLVMValueRef err_ret_array_val = build_alloca(g, array_type, "error_return_trace_addresses",
get_abi_alignment(g, array_type));
TypeTableEntry *array_type = get_array_type(g, g->builtin_types.entry_usize, stack_trace_ptr_count);
err_ret_array_val = build_alloca(g, array_type, "error_return_trace_addresses", get_abi_alignment(g, array_type));
g->cur_err_ret_trace_val_stack = build_alloca(g, g->stack_trace_type, "error_return_trace", get_abi_alignment(g, g->stack_trace_type));
size_t index_field_index = g->stack_trace_type->data.structure.fields[0].gen_index;
LLVMValueRef index_field_ptr = LLVMBuildStructGEP(g->builder, g->cur_err_ret_trace_val_stack, (unsigned)index_field_index, "");
gen_store_untyped(g, LLVMConstNull(usize->type_ref), index_field_ptr, 0, false);
size_t addresses_field_index = g->stack_trace_type->data.structure.fields[1].gen_index;
LLVMValueRef addresses_field_ptr = LLVMBuildStructGEP(g->builder, g->cur_err_ret_trace_val_stack, (unsigned)addresses_field_index, "");
TypeTableEntry *slice_type = g->stack_trace_type->data.structure.fields[1].type_entry;
size_t ptr_field_index = slice_type->data.structure.fields[slice_ptr_index].gen_index;
LLVMValueRef ptr_field_ptr = LLVMBuildStructGEP(g->builder, addresses_field_ptr, (unsigned)ptr_field_index, "");
LLVMValueRef zero = LLVMConstNull(usize->type_ref);
LLVMValueRef indices[] = {zero, zero};
LLVMValueRef err_ret_array_val_elem0_ptr = LLVMBuildInBoundsGEP(g->builder, err_ret_array_val,
indices, 2, "");
gen_store(g, err_ret_array_val_elem0_ptr, ptr_field_ptr,
get_pointer_to_type(g, get_pointer_to_type(g, usize, false), false));
size_t len_field_index = slice_type->data.structure.fields[slice_len_index].gen_index;
LLVMValueRef len_field_ptr = LLVMBuildStructGEP(g->builder, addresses_field_ptr, (unsigned)len_field_index, "");
gen_store(g, LLVMConstInt(usize->type_ref, stack_trace_ptr_count, false), len_field_ptr, get_pointer_to_type(g, usize, false));
} else {
g->cur_err_ret_trace_val_stack = nullptr;
}
@ -5351,6 +5529,31 @@ static void do_code_gen(CodeGen *g) {
}
}
// finishing error return trace setup. we have to do this after all the allocas.
if (have_err_ret_trace_stack) {
TypeTableEntry *usize = g->builtin_types.entry_usize;
size_t index_field_index = g->stack_trace_type->data.structure.fields[0].gen_index;
LLVMValueRef index_field_ptr = LLVMBuildStructGEP(g->builder, g->cur_err_ret_trace_val_stack, (unsigned)index_field_index, "");
gen_store_untyped(g, LLVMConstNull(usize->type_ref), index_field_ptr, 0, false);
size_t addresses_field_index = g->stack_trace_type->data.structure.fields[1].gen_index;
LLVMValueRef addresses_field_ptr = LLVMBuildStructGEP(g->builder, g->cur_err_ret_trace_val_stack, (unsigned)addresses_field_index, "");
TypeTableEntry *slice_type = g->stack_trace_type->data.structure.fields[1].type_entry;
size_t ptr_field_index = slice_type->data.structure.fields[slice_ptr_index].gen_index;
LLVMValueRef ptr_field_ptr = LLVMBuildStructGEP(g->builder, addresses_field_ptr, (unsigned)ptr_field_index, "");
LLVMValueRef zero = LLVMConstNull(usize->type_ref);
LLVMValueRef indices[] = {zero, zero};
LLVMValueRef err_ret_array_val_elem0_ptr = LLVMBuildInBoundsGEP(g->builder, err_ret_array_val,
indices, 2, "");
TypeTableEntry *ptr_ptr_usize_type = get_pointer_to_type(g, get_pointer_to_type(g, usize, false), false);
gen_store(g, err_ret_array_val_elem0_ptr, ptr_field_ptr, ptr_ptr_usize_type);
size_t len_field_index = slice_type->data.structure.fields[slice_len_index].gen_index;
LLVMValueRef len_field_ptr = LLVMBuildStructGEP(g->builder, addresses_field_ptr, (unsigned)len_field_index, "");
gen_store(g, LLVMConstInt(usize->type_ref, stack_trace_ptr_count, false), len_field_ptr, get_pointer_to_type(g, usize, false));
}
FnTypeId *fn_type_id = &fn_table_entry->type_entry->data.fn.fn_type_id;
// create debug variable declarations for parameters
@ -5858,6 +6061,8 @@ static void define_builtin_compile_vars(CodeGen *g) {
os_path_join(g->cache_dir, buf_create_from_str(builtin_zig_basename), builtin_zig_path);
Buf *contents = buf_alloc();
// Modifications to this struct must be coordinated with code that does anything with
// g->stack_trace_type. There are hard-coded references to the field indexes.
buf_append_str(contents,
"pub const StackTrace = struct {\n"
" index: usize,\n"
@ -6122,7 +6327,9 @@ static void init(CodeGen *g) {
g->builder = LLVMCreateBuilder();
g->dbuilder = ZigLLVMCreateDIBuilder(g->module, true);
Buf *producer = buf_sprintf("zig %s", ZIG_VERSION_STRING);
// Don't use ZIG_VERSION_STRING here, llvm misparses it when it includes
// the git revision.
Buf *producer = buf_sprintf("zig %d.%d.%d", ZIG_VERSION_MAJOR, ZIG_VERSION_MINOR, ZIG_VERSION_PATCH);
const char *flags = "";
unsigned runtime_version = 0;
ZigLLVMDIFile *compile_unit_file = ZigLLVMCreateFile(g->dbuilder, buf_ptr(g->root_out_name),

279
src/ir.cpp
View File

@ -725,6 +725,14 @@ static constexpr IrInstructionId ir_instruction_id(IrInstructionAddImplicitRetur
return IrInstructionIdAddImplicitReturnType;
}
static constexpr IrInstructionId ir_instruction_id(IrInstructionMergeErrRetTraces *) {
return IrInstructionIdMergeErrRetTraces;
}
static constexpr IrInstructionId ir_instruction_id(IrInstructionMarkErrRetTracePtr *) {
return IrInstructionIdMarkErrRetTracePtr;
}
template<typename T>
static T *ir_create_instruction(IrBuilder *irb, Scope *scope, AstNode *source_node) {
T *special_instruction = allocate<T>(1);
@ -956,25 +964,6 @@ static IrInstruction *ir_build_const_c_str_lit(IrBuilder *irb, Scope *scope, Ast
return &const_instruction->base;
}
static IrInstruction *ir_build_const_promise_init(IrBuilder *irb, Scope *scope, AstNode *source_node,
TypeTableEntry *return_type)
{
TypeTableEntry *struct_type = get_promise_frame_type(irb->codegen, return_type);
IrInstructionConst *const_instruction = ir_build_instruction<IrInstructionConst>(irb, scope, source_node);
const_instruction->base.value.type = struct_type;
const_instruction->base.value.special = ConstValSpecialStatic;
const_instruction->base.value.data.x_struct.fields = allocate<ConstExprValue>(struct_type->data.structure.src_field_count);
const_instruction->base.value.data.x_struct.fields[0].type = struct_type->data.structure.fields[0].type_entry;
const_instruction->base.value.data.x_struct.fields[0].special = ConstValSpecialStatic;
const_instruction->base.value.data.x_struct.fields[0].data.x_maybe = nullptr;
const_instruction->base.value.data.x_struct.fields[1].type = return_type;
const_instruction->base.value.data.x_struct.fields[1].special = ConstValSpecialUndef;
const_instruction->base.value.data.x_struct.fields[2].type = struct_type->data.structure.fields[2].type_entry;
const_instruction->base.value.data.x_struct.fields[2].special = ConstValSpecialUndef;
return &const_instruction->base;
}
static IrInstruction *ir_build_bin_op(IrBuilder *irb, Scope *scope, AstNode *source_node, IrBinOp op_id,
IrInstruction *op1, IrInstruction *op2, bool safety_check_on)
{
@ -2495,8 +2484,9 @@ static IrInstruction *ir_build_arg_type(IrBuilder *irb, Scope *scope, AstNode *s
return &instruction->base;
}
static IrInstruction *ir_build_error_return_trace(IrBuilder *irb, Scope *scope, AstNode *source_node) {
static IrInstruction *ir_build_error_return_trace(IrBuilder *irb, Scope *scope, AstNode *source_node, IrInstructionErrorReturnTrace::Nullable nullable) {
IrInstructionErrorReturnTrace *instruction = ir_build_instruction<IrInstructionErrorReturnTrace>(irb, scope, source_node);
instruction->nullable = nullable;
return &instruction->base;
}
@ -2717,6 +2707,30 @@ static IrInstruction *ir_build_add_implicit_return_type(IrBuilder *irb, Scope *s
return &instruction->base;
}
static IrInstruction *ir_build_merge_err_ret_traces(IrBuilder *irb, Scope *scope, AstNode *source_node,
IrInstruction *coro_promise_ptr, IrInstruction *src_err_ret_trace_ptr, IrInstruction *dest_err_ret_trace_ptr)
{
IrInstructionMergeErrRetTraces *instruction = ir_build_instruction<IrInstructionMergeErrRetTraces>(irb, scope, source_node);
instruction->coro_promise_ptr = coro_promise_ptr;
instruction->src_err_ret_trace_ptr = src_err_ret_trace_ptr;
instruction->dest_err_ret_trace_ptr = dest_err_ret_trace_ptr;
ir_ref_instruction(coro_promise_ptr, irb->current_basic_block);
ir_ref_instruction(src_err_ret_trace_ptr, irb->current_basic_block);
ir_ref_instruction(dest_err_ret_trace_ptr, irb->current_basic_block);
return &instruction->base;
}
static IrInstruction *ir_build_mark_err_ret_trace_ptr(IrBuilder *irb, Scope *scope, AstNode *source_node, IrInstruction *err_ret_trace_ptr) {
IrInstructionMarkErrRetTracePtr *instruction = ir_build_instruction<IrInstructionMarkErrRetTracePtr>(irb, scope, source_node);
instruction->err_ret_trace_ptr = err_ret_trace_ptr;
ir_ref_instruction(err_ret_trace_ptr, irb->current_basic_block);
return &instruction->base;
}
static void ir_count_defers(IrBuilder *irb, Scope *inner_scope, Scope *outer_scope, size_t *results) {
results[ReturnKindUnconditional] = 0;
results[ReturnKindError] = 0;
@ -2741,9 +2755,10 @@ static IrInstruction *ir_mark_gen(IrInstruction *instruction) {
static bool ir_gen_defers_for_block(IrBuilder *irb, Scope *inner_scope, Scope *outer_scope, bool gen_error_defers) {
Scope *scope = inner_scope;
bool is_noreturn = false;
while (scope != outer_scope) {
if (!scope)
return false;
return is_noreturn;
if (scope->id == ScopeIdDefer) {
AstNode *defer_node = scope->source_node;
@ -2756,14 +2771,18 @@ static bool ir_gen_defers_for_block(IrBuilder *irb, Scope *inner_scope, Scope *o
Scope *defer_expr_scope = defer_node->data.defer.expr_scope;
IrInstruction *defer_expr_value = ir_gen_node(irb, defer_expr_node, defer_expr_scope);
if (defer_expr_value != irb->codegen->invalid_instruction) {
ir_mark_gen(ir_build_check_statement_is_void(irb, defer_expr_scope, defer_expr_node, defer_expr_value));
if (defer_expr_value->value.type != nullptr && defer_expr_value->value.type->id == TypeTableEntryIdUnreachable) {
is_noreturn = true;
} else {
ir_mark_gen(ir_build_check_statement_is_void(irb, defer_expr_scope, defer_expr_node, defer_expr_value));
}
}
}
}
scope = scope->parent;
}
return true;
return is_noreturn;
}
static void ir_set_cursor_at_end(IrBuilder *irb, IrBasicBlock *basic_block) {
@ -2822,34 +2841,6 @@ static IrInstruction *ir_gen_async_return(IrBuilder *irb, Scope *scope, AstNode
// the above blocks are rendered by ir_gen after the rest of codegen
}
static bool exec_have_err_ret_trace(CodeGen *g, IrExecutable *exec) {
if (!g->have_err_ret_tracing)
return false;
FnTableEntry *fn_entry = exec_fn_entry(exec);
if (fn_entry == nullptr)
return false;
if (exec->is_inline)
return false;
return type_can_fail(fn_entry->type_entry->data.fn.fn_type_id.return_type);
}
static void ir_gen_save_err_ret_addr(IrBuilder *irb, Scope *scope, AstNode *node) {
if (!exec_have_err_ret_trace(irb->codegen, irb->exec))
return;
bool is_async = exec_is_async(irb->exec);
if (is_async) {
//IrInstruction *err_ret_addr_ptr = ir_build_load_ptr(irb, scope, node, irb->exec->coro_err_ret_addr_ptr);
//IrInstruction *return_address_ptr = ir_build_instr_addr(irb, scope, node);
//IrInstruction *return_address_usize = ir_build_ptr_to_int(irb, scope, node, return_address_ptr);
//ir_build_store_ptr(irb, scope, node, err_ret_addr_ptr, return_address_usize);
return;
}
ir_build_save_err_ret_addr(irb, scope, node);
}
static IrInstruction *ir_gen_return(IrBuilder *irb, Scope *scope, AstNode *node, LVal lval) {
assert(node->type == NodeTypeReturnExpr);
@ -2895,8 +2886,9 @@ static IrInstruction *ir_gen_return(IrBuilder *irb, Scope *scope, AstNode *node,
IrInstruction *is_err = ir_build_test_err(irb, scope, node, return_value);
bool should_inline = ir_should_inline(irb->exec, scope);
IrInstruction *is_comptime;
if (ir_should_inline(irb->exec, scope)) {
if (should_inline) {
is_comptime = ir_build_const_bool(irb, scope, node, true);
} else {
is_comptime = ir_build_test_comptime(irb, scope, node, is_err);
@ -2909,7 +2901,9 @@ static IrInstruction *ir_gen_return(IrBuilder *irb, Scope *scope, AstNode *node,
if (have_err_defers) {
ir_gen_defers_for_block(irb, scope, outer_scope, true);
}
ir_gen_save_err_ret_addr(irb, scope, node);
if (irb->codegen->have_err_ret_tracing && !should_inline) {
ir_build_save_err_ret_addr(irb, scope, node);
}
ir_build_br(irb, scope, node, ret_stmt_block, is_comptime);
ir_set_cursor_at_end_and_append_block(irb, ok_block);
@ -2938,7 +2932,8 @@ static IrInstruction *ir_gen_return(IrBuilder *irb, Scope *scope, AstNode *node,
IrBasicBlock *return_block = ir_create_basic_block(irb, scope, "ErrRetReturn");
IrBasicBlock *continue_block = ir_create_basic_block(irb, scope, "ErrRetContinue");
IrInstruction *is_comptime;
if (ir_should_inline(irb->exec, scope)) {
bool should_inline = ir_should_inline(irb->exec, scope);
if (should_inline) {
is_comptime = ir_build_const_bool(irb, scope, node, true);
} else {
is_comptime = ir_build_test_comptime(irb, scope, node, is_err_val);
@ -2946,10 +2941,13 @@ static IrInstruction *ir_gen_return(IrBuilder *irb, Scope *scope, AstNode *node,
ir_mark_gen(ir_build_cond_br(irb, scope, node, is_err_val, return_block, continue_block, is_comptime));
ir_set_cursor_at_end_and_append_block(irb, return_block);
ir_gen_defers_for_block(irb, scope, outer_scope, true);
IrInstruction *err_val = ir_build_unwrap_err_code(irb, scope, node, err_union_ptr);
ir_gen_save_err_ret_addr(irb, scope, node);
ir_gen_async_return(irb, scope, node, err_val, false);
if (!ir_gen_defers_for_block(irb, scope, outer_scope, true)) {
IrInstruction *err_val = ir_build_unwrap_err_code(irb, scope, node, err_union_ptr);
if (irb->codegen->have_err_ret_tracing && !should_inline) {
ir_build_save_err_ret_addr(irb, scope, node);
}
ir_gen_async_return(irb, scope, node, err_val, false);
}
ir_set_cursor_at_end_and_append_block(irb, continue_block);
IrInstruction *unwrapped_ptr = ir_build_unwrap_err_payload(irb, scope, node, err_union_ptr, false);
@ -4242,7 +4240,7 @@ static IrInstruction *ir_gen_builtin_fn_call(IrBuilder *irb, Scope *scope, AstNo
}
case BuiltinFnIdErrorReturnTrace:
{
return ir_build_error_return_trace(irb, scope, node);
return ir_build_error_return_trace(irb, scope, node, IrInstructionErrorReturnTrace::Null);
}
case BuiltinFnIdAtomicRmw:
{
@ -5703,7 +5701,7 @@ static IrInstruction *ir_gen_continue(IrBuilder *irb, Scope *continue_scope, Ast
IrBasicBlock *dest_block = loop_scope->continue_block;
ir_gen_defers_for_block(irb, continue_scope, dest_block->scope, false);
return ir_build_br(irb, continue_scope, node, dest_block, is_comptime);
return ir_mark_gen(ir_build_br(irb, continue_scope, node, dest_block, is_comptime));
}
static IrInstruction *ir_gen_error_type(IrBuilder *irb, Scope *scope, AstNode *node) {
@ -6125,6 +6123,13 @@ static IrInstruction *ir_gen_await_expr(IrBuilder *irb, Scope *parent_scope, Ast
Buf *result_ptr_field_name = buf_create_from_str(RESULT_PTR_FIELD_NAME);
IrInstruction *result_ptr_field_ptr = ir_build_field_ptr(irb, parent_scope, node, coro_promise_ptr, result_ptr_field_name);
if (irb->codegen->have_err_ret_tracing) {
IrInstruction *err_ret_trace_ptr = ir_build_error_return_trace(irb, parent_scope, node, IrInstructionErrorReturnTrace::NonNull);
Buf *err_ret_trace_ptr_field_name = buf_create_from_str(ERR_RET_TRACE_PTR_FIELD_NAME);
IrInstruction *err_ret_trace_ptr_field_ptr = ir_build_field_ptr(irb, parent_scope, node, coro_promise_ptr, err_ret_trace_ptr_field_name);
ir_build_store_ptr(irb, parent_scope, node, err_ret_trace_ptr_field_ptr, err_ret_trace_ptr);
}
Buf *awaiter_handle_field_name = buf_create_from_str(AWAITER_HANDLE_FIELD_NAME);
IrInstruction *awaiter_field_ptr = ir_build_field_ptr(irb, parent_scope, node, coro_promise_ptr,
awaiter_handle_field_name);
@ -6148,10 +6153,16 @@ static IrInstruction *ir_gen_await_expr(IrBuilder *irb, Scope *parent_scope, Ast
IrInstruction *is_non_null = ir_build_test_nonnull(irb, parent_scope, node, maybe_await_handle);
IrBasicBlock *yes_suspend_block = ir_create_basic_block(irb, parent_scope, "YesSuspend");
IrBasicBlock *no_suspend_block = ir_create_basic_block(irb, parent_scope, "NoSuspend");
IrBasicBlock *merge_block = ir_create_basic_block(irb, parent_scope, "Merge");
IrBasicBlock *merge_block = ir_create_basic_block(irb, parent_scope, "MergeSuspend");
ir_build_cond_br(irb, parent_scope, node, is_non_null, no_suspend_block, yes_suspend_block, const_bool_false);
ir_set_cursor_at_end_and_append_block(irb, no_suspend_block);
if (irb->codegen->have_err_ret_tracing) {
Buf *err_ret_trace_field_name = buf_create_from_str(ERR_RET_TRACE_FIELD_NAME);
IrInstruction *src_err_ret_trace_ptr = ir_build_field_ptr(irb, parent_scope, node, coro_promise_ptr, err_ret_trace_field_name);
IrInstruction *dest_err_ret_trace_ptr = ir_build_error_return_trace(irb, parent_scope, node, IrInstructionErrorReturnTrace::NonNull);
ir_build_merge_err_ret_traces(irb, parent_scope, node, coro_promise_ptr, src_err_ret_trace_ptr, dest_err_ret_trace_ptr);
}
Buf *result_field_name = buf_create_from_str(RESULT_FIELD_NAME);
IrInstruction *promise_result_ptr = ir_build_field_ptr(irb, parent_scope, node, coro_promise_ptr, result_field_name);
IrInstruction *no_suspend_result = ir_build_load_ptr(irb, parent_scope, node, promise_result_ptr);
@ -6173,7 +6184,7 @@ static IrInstruction *ir_gen_await_expr(IrBuilder *irb, Scope *parent_scope, Ast
ir_set_cursor_at_end_and_append_block(irb, cleanup_block);
ir_gen_defers_for_block(irb, parent_scope, outer_scope, true);
ir_build_br(irb, parent_scope, node, irb->exec->coro_final_cleanup_block, const_bool_false);
ir_mark_gen(ir_build_br(irb, parent_scope, node, irb->exec->coro_final_cleanup_block, const_bool_false));
ir_set_cursor_at_end_and_append_block(irb, resume_block);
IrInstruction *yes_suspend_result = ir_build_load_ptr(irb, parent_scope, node, my_result_var_ptr);
@ -6249,7 +6260,7 @@ static IrInstruction *ir_gen_suspend(IrBuilder *irb, Scope *parent_scope, AstNod
ir_set_cursor_at_end_and_append_block(irb, cleanup_block);
ir_gen_defers_for_block(irb, parent_scope, outer_scope, true);
ir_build_br(irb, parent_scope, node, irb->exec->coro_final_cleanup_block, const_bool_false);
ir_mark_gen(ir_build_br(irb, parent_scope, node, irb->exec->coro_final_cleanup_block, const_bool_false));
ir_set_cursor_at_end_and_append_block(irb, resume_block);
return ir_build_const_void(irb, parent_scope, node);
@ -6268,7 +6279,6 @@ static IrInstruction *ir_gen_node_raw(IrBuilder *irb, AstNode *node, Scope *scop
case NodeTypeSwitchRange:
case NodeTypeStructField:
case NodeTypeFnDef:
case NodeTypeFnDecl:
case NodeTypeTestDecl:
zig_unreachable();
case NodeTypeBlock:
@ -6407,6 +6417,8 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
IrInstruction *coro_id;
IrInstruction *u8_ptr_type;
IrInstruction *const_bool_false;
IrInstruction *coro_promise_ptr;
IrInstruction *err_ret_trace_ptr;
TypeTableEntry *return_type;
Buf *result_ptr_field_name;
VariableTableEntry *coro_size_var;
@ -6417,9 +6429,12 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
VariableTableEntry *promise_var = ir_create_var(irb, node, coro_scope, nullptr, false, false, true, const_bool_false);
return_type = fn_entry->type_entry->data.fn.fn_type_id.return_type;
IrInstruction *promise_init = ir_build_const_promise_init(irb, coro_scope, node, return_type);
ir_build_var_decl(irb, coro_scope, node, promise_var, nullptr, nullptr, promise_init);
IrInstruction *coro_promise_ptr = ir_build_var_ptr(irb, coro_scope, node, promise_var, false, false);
IrInstruction *undef = ir_build_const_undefined(irb, coro_scope, node);
TypeTableEntry *coro_frame_type = get_promise_frame_type(irb->codegen, return_type);
IrInstruction *coro_frame_type_value = ir_build_const_type(irb, coro_scope, node, coro_frame_type);
// TODO mark this var decl as "no safety" e.g. disable initializing the undef value to 0xaa
ir_build_var_decl(irb, coro_scope, node, promise_var, coro_frame_type_value, nullptr, undef);
coro_promise_ptr = ir_build_var_ptr(irb, coro_scope, node, promise_var, false, false);
VariableTableEntry *await_handle_var = ir_create_var(irb, node, coro_scope, nullptr, false, false, true, const_bool_false);
IrInstruction *null_value = ir_build_const_null(irb, coro_scope, node);
@ -6452,7 +6467,6 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
ir_set_cursor_at_end_and_append_block(irb, alloc_err_block);
// we can return undefined here, because the caller passes a pointer to the error struct field
// in the error union result, and we populate it in case of allocation failure.
IrInstruction *undef = ir_build_const_undefined(irb, coro_scope, node);
ir_build_return(irb, coro_scope, node, undef);
ir_set_cursor_at_end_and_append_block(irb, alloc_ok_block);
@ -6460,13 +6474,35 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
irb->exec->coro_handle = ir_build_coro_begin(irb, coro_scope, node, coro_id, coro_mem_ptr);
Buf *awaiter_handle_field_name = buf_create_from_str(AWAITER_HANDLE_FIELD_NAME);
irb->exec->coro_awaiter_field_ptr = ir_build_field_ptr(irb, coro_scope, node, coro_promise_ptr,
irb->exec->coro_awaiter_field_ptr = ir_build_field_ptr(irb, scope, node, coro_promise_ptr,
awaiter_handle_field_name);
ir_build_store_ptr(irb, scope, node, irb->exec->coro_awaiter_field_ptr, null_value);
Buf *result_field_name = buf_create_from_str(RESULT_FIELD_NAME);
irb->exec->coro_result_field_ptr = ir_build_field_ptr(irb, coro_scope, node, coro_promise_ptr, result_field_name);
irb->exec->coro_result_field_ptr = ir_build_field_ptr(irb, scope, node, coro_promise_ptr, result_field_name);
result_ptr_field_name = buf_create_from_str(RESULT_PTR_FIELD_NAME);
irb->exec->coro_result_ptr_field_ptr = ir_build_field_ptr(irb, coro_scope, node, coro_promise_ptr, result_ptr_field_name);
ir_build_store_ptr(irb, coro_scope, node, irb->exec->coro_result_ptr_field_ptr, irb->exec->coro_result_field_ptr);
irb->exec->coro_result_ptr_field_ptr = ir_build_field_ptr(irb, scope, node, coro_promise_ptr, result_ptr_field_name);
ir_build_store_ptr(irb, scope, node, irb->exec->coro_result_ptr_field_ptr, irb->exec->coro_result_field_ptr);
if (irb->codegen->have_err_ret_tracing) {
// initialize the error return trace
Buf *return_addresses_field_name = buf_create_from_str(RETURN_ADDRESSES_FIELD_NAME);
IrInstruction *return_addresses_ptr = ir_build_field_ptr(irb, scope, node, coro_promise_ptr, return_addresses_field_name);
Buf *err_ret_trace_field_name = buf_create_from_str(ERR_RET_TRACE_FIELD_NAME);
err_ret_trace_ptr = ir_build_field_ptr(irb, scope, node, coro_promise_ptr, err_ret_trace_field_name);
ir_build_mark_err_ret_trace_ptr(irb, scope, node, err_ret_trace_ptr);
// coordinate with builtin.zig
Buf *index_name = buf_create_from_str("index");
IrInstruction *index_ptr = ir_build_field_ptr(irb, scope, node, err_ret_trace_ptr, index_name);
IrInstruction *zero = ir_build_const_usize(irb, scope, node, 0);
ir_build_store_ptr(irb, scope, node, index_ptr, zero);
Buf *instruction_addresses_name = buf_create_from_str("instruction_addresses");
IrInstruction *addrs_slice_ptr = ir_build_field_ptr(irb, scope, node, err_ret_trace_ptr, instruction_addresses_name);
IrInstruction *slice_value = ir_build_slice(irb, scope, node, return_addresses_ptr, zero, nullptr, false);
ir_build_store_ptr(irb, scope, node, addrs_slice_ptr, slice_value);
}
irb->exec->coro_early_final = ir_create_basic_block(irb, scope, "CoroEarlyFinal");
@ -6517,6 +6553,12 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
IrInstruction *size_of_ret_val = ir_build_size_of(irb, scope, node, return_type_inst);
ir_build_memcpy(irb, scope, node, result_ptr_as_u8_ptr, return_value_ptr_as_u8_ptr, size_of_ret_val);
}
if (irb->codegen->have_err_ret_tracing) {
Buf *err_ret_trace_ptr_field_name = buf_create_from_str(ERR_RET_TRACE_PTR_FIELD_NAME);
IrInstruction *err_ret_trace_ptr_field_ptr = ir_build_field_ptr(irb, scope, node, coro_promise_ptr, err_ret_trace_ptr_field_name);
IrInstruction *dest_err_ret_trace_ptr = ir_build_load_ptr(irb, scope, node, err_ret_trace_ptr_field_ptr);
ir_build_merge_err_ret_traces(irb, scope, node, coro_promise_ptr, err_ret_trace_ptr, dest_err_ret_trace_ptr);
}
ir_build_br(irb, scope, node, check_free_block, const_bool_false);
ir_set_cursor_at_end_and_append_block(irb, irb->exec->coro_final_cleanup_block);
@ -11579,18 +11621,25 @@ static bool exec_has_err_ret_trace(CodeGen *g, IrExecutable *exec) {
static TypeTableEntry *ir_analyze_instruction_error_return_trace(IrAnalyze *ira,
IrInstructionErrorReturnTrace *instruction)
{
TypeTableEntry *ptr_to_stack_trace_type = get_ptr_to_stack_trace_type(ira->codegen);
TypeTableEntry *nullable_type = get_maybe_type(ira->codegen, ptr_to_stack_trace_type);
if (!exec_has_err_ret_trace(ira->codegen, ira->new_irb.exec)) {
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
out_val->data.x_maybe = nullptr;
if (instruction->nullable == IrInstructionErrorReturnTrace::Null) {
TypeTableEntry *ptr_to_stack_trace_type = get_ptr_to_stack_trace_type(ira->codegen);
TypeTableEntry *nullable_type = get_maybe_type(ira->codegen, ptr_to_stack_trace_type);
if (!exec_has_err_ret_trace(ira->codegen, ira->new_irb.exec)) {
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
out_val->data.x_maybe = nullptr;
return nullable_type;
}
IrInstruction *new_instruction = ir_build_error_return_trace(&ira->new_irb, instruction->base.scope,
instruction->base.source_node, instruction->nullable);
ir_link_new_instruction(new_instruction, &instruction->base);
return nullable_type;
} else {
assert(ira->codegen->have_err_ret_tracing);
IrInstruction *new_instruction = ir_build_error_return_trace(&ira->new_irb, instruction->base.scope,
instruction->base.source_node, instruction->nullable);
ir_link_new_instruction(new_instruction, &instruction->base);
return get_ptr_to_stack_trace_type(ira->codegen);
}
IrInstruction *new_instruction = ir_build_error_return_trace(&ira->new_irb, instruction->base.scope,
instruction->base.source_node);
ir_link_new_instruction(new_instruction, &instruction->base);
return nullable_type;
}
static TypeTableEntry *ir_analyze_instruction_error_union(IrAnalyze *ira,
@ -11755,7 +11804,8 @@ static bool ir_analyze_fn_call_generic_arg(IrAnalyze *ira, AstNode *fn_proto_nod
}
}
bool comptime_arg = param_decl_node->data.param_decl.is_inline;
bool comptime_arg = param_decl_node->data.param_decl.is_inline ||
casted_arg->value.type->id == TypeTableEntryIdNumLitInt || casted_arg->value.type->id == TypeTableEntryIdNumLitFloat;
ConstExprValue *arg_val;
@ -11780,6 +11830,12 @@ static bool ir_analyze_fn_call_generic_arg(IrAnalyze *ira, AstNode *fn_proto_nod
var->shadowable = !comptime_arg;
*next_proto_i += 1;
} else if (casted_arg->value.type->id == TypeTableEntryIdNumLitInt ||
casted_arg->value.type->id == TypeTableEntryIdNumLitFloat)
{
ir_add_error(ira, casted_arg,
buf_sprintf("compiler bug: integer and float literals in var args function must be casted. https://github.com/zig-lang/zig/issues/557"));
return false;
}
if (!comptime_arg) {
@ -13072,6 +13128,7 @@ static IrInstruction *ir_analyze_container_member_access_inner(IrAnalyze *ira,
{
if (!is_slice(bare_struct_type)) {
ScopeDecls *container_scope = get_container_scope(bare_struct_type);
assert(container_scope != nullptr);
auto entry = container_scope->decl_table.maybe_get(field_name);
Tld *tld = entry ? entry->value : nullptr;
if (tld && tld->id == TldIdFn) {
@ -16702,6 +16759,11 @@ static TypeTableEntry *ir_analyze_instruction_fn_proto(IrAnalyze *ira, IrInstruc
return ira->codegen->builtin_types.entry_invalid;
if (fn_type_id.cc == CallingConventionAsync) {
if (instruction->async_allocator_type_value == nullptr) {
ir_add_error(ira, &instruction->base,
buf_sprintf("async fn proto missing allocator type"));
return ira->codegen->builtin_types.entry_invalid;
}
IrInstruction *async_allocator_type_value = instruction->async_allocator_type_value->other;
fn_type_id.async_allocator_type = ir_resolve_type(ira, async_allocator_type_value);
if (type_is_invalid(fn_type_id.async_allocator_type))
@ -17904,6 +17966,39 @@ static TypeTableEntry *ir_analyze_instruction_await_bookkeeping(IrAnalyze *ira,
return out_val->type;
}
static TypeTableEntry *ir_analyze_instruction_merge_err_ret_traces(IrAnalyze *ira,
IrInstructionMergeErrRetTraces *instruction)
{
IrInstruction *coro_promise_ptr = instruction->coro_promise_ptr->other;
if (type_is_invalid(coro_promise_ptr->value.type))
return ira->codegen->builtin_types.entry_invalid;
assert(coro_promise_ptr->value.type->id == TypeTableEntryIdPointer);
TypeTableEntry *promise_frame_type = coro_promise_ptr->value.type->data.pointer.child_type;
assert(promise_frame_type->id == TypeTableEntryIdStruct);
TypeTableEntry *promise_result_type = promise_frame_type->data.structure.fields[1].type_entry;
if (!type_can_fail(promise_result_type)) {
ConstExprValue *out_val = ir_build_const_from(ira, &instruction->base);
out_val->type = ira->codegen->builtin_types.entry_void;
return out_val->type;
}
IrInstruction *src_err_ret_trace_ptr = instruction->src_err_ret_trace_ptr->other;
if (type_is_invalid(src_err_ret_trace_ptr->value.type))
return ira->codegen->builtin_types.entry_invalid;
IrInstruction *dest_err_ret_trace_ptr = instruction->dest_err_ret_trace_ptr->other;
if (type_is_invalid(dest_err_ret_trace_ptr->value.type))
return ira->codegen->builtin_types.entry_invalid;
IrInstruction *result = ir_build_merge_err_ret_traces(&ira->new_irb, instruction->base.scope,
instruction->base.source_node, coro_promise_ptr, src_err_ret_trace_ptr, dest_err_ret_trace_ptr);
ir_link_new_instruction(result, &instruction->base);
result->value.type = ira->codegen->builtin_types.entry_void;
return result->value.type;
}
static TypeTableEntry *ir_analyze_instruction_save_err_ret_addr(IrAnalyze *ira, IrInstructionSaveErrRetAddr *instruction) {
IrInstruction *result = ir_build_save_err_ret_addr(&ira->new_irb, instruction->base.scope,
instruction->base.source_node);
@ -17912,6 +18007,18 @@ static TypeTableEntry *ir_analyze_instruction_save_err_ret_addr(IrAnalyze *ira,
return result->value.type;
}
static TypeTableEntry *ir_analyze_instruction_mark_err_ret_trace_ptr(IrAnalyze *ira, IrInstructionMarkErrRetTracePtr *instruction) {
IrInstruction *err_ret_trace_ptr = instruction->err_ret_trace_ptr->other;
if (type_is_invalid(err_ret_trace_ptr->value.type))
return ira->codegen->builtin_types.entry_invalid;
IrInstruction *result = ir_build_mark_err_ret_trace_ptr(&ira->new_irb, instruction->base.scope,
instruction->base.source_node, err_ret_trace_ptr);
ir_link_new_instruction(result, &instruction->base);
result->value.type = ira->codegen->builtin_types.entry_void;
return result->value.type;
}
static TypeTableEntry *ir_analyze_instruction_nocast(IrAnalyze *ira, IrInstruction *instruction) {
switch (instruction->id) {
case IrInstructionIdInvalid:
@ -18155,6 +18262,10 @@ static TypeTableEntry *ir_analyze_instruction_nocast(IrAnalyze *ira, IrInstructi
return ir_analyze_instruction_save_err_ret_addr(ira, (IrInstructionSaveErrRetAddr *)instruction);
case IrInstructionIdAddImplicitReturnType:
return ir_analyze_instruction_add_implicit_return_type(ira, (IrInstructionAddImplicitReturnType *)instruction);
case IrInstructionIdMergeErrRetTraces:
return ir_analyze_instruction_merge_err_ret_traces(ira, (IrInstructionMergeErrRetTraces *)instruction);
case IrInstructionIdMarkErrRetTracePtr:
return ir_analyze_instruction_mark_err_ret_trace_ptr(ira, (IrInstructionMarkErrRetTracePtr *)instruction);
}
zig_unreachable();
}
@ -18282,6 +18393,8 @@ bool ir_has_side_effects(IrInstruction *instruction) {
case IrInstructionIdAwaitBookkeeping:
case IrInstructionIdSaveErrRetAddr:
case IrInstructionIdAddImplicitReturnType:
case IrInstructionIdMergeErrRetTraces:
case IrInstructionIdMarkErrRetTracePtr:
return true;
case IrInstructionIdPhi:

33
src/ir_print.cpp
View File

@ -1024,7 +1024,16 @@ static void ir_print_export(IrPrint *irp, IrInstructionExport *instruction) {
}
static void ir_print_error_return_trace(IrPrint *irp, IrInstructionErrorReturnTrace *instruction) {
fprintf(irp->f, "@errorReturnTrace()");
fprintf(irp->f, "@errorReturnTrace(");
switch (instruction->nullable) {
case IrInstructionErrorReturnTrace::Null:
fprintf(irp->f, "Null");
break;
case IrInstructionErrorReturnTrace::NonNull:
fprintf(irp->f, "NonNull");
break;
}
fprintf(irp->f, ")");
}
static void ir_print_error_union(IrPrint *irp, IrInstructionErrorUnion *instruction) {
@ -1179,6 +1188,22 @@ static void ir_print_add_implicit_return_type(IrPrint *irp, IrInstructionAddImpl
fprintf(irp->f, ")");
}
static void ir_print_merge_err_ret_traces(IrPrint *irp, IrInstructionMergeErrRetTraces *instruction) {
fprintf(irp->f, "@mergeErrRetTraces(");
ir_print_other_instruction(irp, instruction->coro_promise_ptr);
fprintf(irp->f, ",");
ir_print_other_instruction(irp, instruction->src_err_ret_trace_ptr);
fprintf(irp->f, ",");
ir_print_other_instruction(irp, instruction->dest_err_ret_trace_ptr);
fprintf(irp->f, ")");
}
static void ir_print_mark_err_ret_trace_ptr(IrPrint *irp, IrInstructionMarkErrRetTracePtr *instruction) {
fprintf(irp->f, "@markErrRetTracePtr(");
ir_print_other_instruction(irp, instruction->err_ret_trace_ptr);
fprintf(irp->f, ")");
}
static void ir_print_instruction(IrPrint *irp, IrInstruction *instruction) {
ir_print_prefix(irp, instruction);
switch (instruction->id) {
@ -1559,6 +1584,12 @@ static void ir_print_instruction(IrPrint *irp, IrInstruction *instruction) {
case IrInstructionIdAddImplicitReturnType:
ir_print_add_implicit_return_type(irp, (IrInstructionAddImplicitReturnType *)instruction);
break;
case IrInstructionIdMergeErrRetTraces:
ir_print_merge_err_ret_traces(irp, (IrInstructionMergeErrRetTraces *)instruction);
break;
case IrInstructionIdMarkErrRetTracePtr:
ir_print_mark_err_ret_trace_ptr(irp, (IrInstructionMarkErrRetTracePtr *)instruction);
break;
}
fprintf(irp->f, "\n");
}

3
src/parser.cpp
View File

@ -2923,9 +2923,6 @@ void ast_visit_node_children(AstNode *node, void (*visit)(AstNode **, void *cont
visit_field(&node->data.fn_def.fn_proto, visit, context);
visit_field(&node->data.fn_def.body, visit, context);
break;
case NodeTypeFnDecl:
visit_field(&node->data.fn_decl.fn_proto, visit, context);
break;
case NodeTypeParamDecl:
visit_field(&node->data.param_decl.type, visit, context);
break;

51
std/buf_map.zig
View File

@ -1,6 +1,8 @@
const HashMap = @import("hash_map.zig").HashMap;
const mem = @import("mem.zig");
const std = @import("index.zig");
const HashMap = std.HashMap;
const mem = std.mem;
const Allocator = mem.Allocator;
const assert = std.debug.assert;
/// BufMap copies keys and values before they go into the map, and
/// frees them when they get removed.
@ -28,18 +30,12 @@ pub const BufMap = struct {
}
pub fn set(self: &BufMap, key: []const u8, value: []const u8) !void {
if (self.hash_map.get(key)) |entry| {
const value_copy = try self.copy(value);
errdefer self.free(value_copy);
_ = try self.hash_map.put(key, value_copy);
self.free(entry.value);
} else {
const key_copy = try self.copy(key);
errdefer self.free(key_copy);
const value_copy = try self.copy(value);
errdefer self.free(value_copy);
_ = try self.hash_map.put(key_copy, value_copy);
}
self.delete(key);
const key_copy = try self.copy(key);
errdefer self.free(key_copy);
const value_copy = try self.copy(value);
errdefer self.free(value_copy);
_ = try self.hash_map.put(key_copy, value_copy);
}
pub fn get(self: &BufMap, key: []const u8) ?[]const u8 {
@ -66,8 +62,29 @@ pub const BufMap = struct {
}
fn copy(self: &BufMap, value: []const u8) ![]const u8 {
const result = try self.hash_map.allocator.alloc(u8, value.len);
mem.copy(u8, result, value);
return result;
return mem.dupe(self.hash_map.allocator, u8, value);
}
};
test "BufMap" {
var direct_allocator = std.heap.DirectAllocator.init();
defer direct_allocator.deinit();
var bufmap = BufMap.init(&direct_allocator.allocator);
defer bufmap.deinit();
try bufmap.set("x", "1");
assert(mem.eql(u8, ??bufmap.get("x"), "1"));
assert(1 == bufmap.count());
try bufmap.set("x", "2");
assert(mem.eql(u8, ??bufmap.get("x"), "2"));
assert(1 == bufmap.count());
try bufmap.set("x", "3");
assert(mem.eql(u8, ??bufmap.get("x"), "3"));
assert(1 == bufmap.count());
bufmap.delete("x");
assert(0 == bufmap.count());
}

8
std/c/darwin.zig
View File

@ -55,3 +55,11 @@ pub const dirent = extern struct {
d_type: u8,
d_name: u8, // field address is address of first byte of name
};
pub const sockaddr = extern struct {
sa_len: u8,
sa_family: sa_family_t,
sa_data: [14]u8,
};
pub const sa_family_t = u8;

25
std/endian.zig
View File

@ -1,25 +0,0 @@
const mem = @import("mem.zig");
const builtin = @import("builtin");
pub fn swapIfLe(comptime T: type, x: T) T {
return swapIf(builtin.Endian.Little, T, x);
}
pub fn swapIfBe(comptime T: type, x: T) T {
return swapIf(builtin.Endian.Big, T, x);
}
pub fn swapIf(endian: builtin.Endian, comptime T: type, x: T) T {
return if (builtin.endian == endian) swap(T, x) else x;
}
pub fn swap(comptime T: type, x: T) T {
var buf: [@sizeOf(T)]u8 = undefined;
mem.writeInt(buf[0..], x, builtin.Endian.Little);
return mem.readInt(buf, T, builtin.Endian.Big);
}
test "swap" {
const debug = @import("debug/index.zig");
debug.assert(swap(u32, 0xDEADBEEF) == 0xEFBEADDE);
}

235
std/event.zig Normal file
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@ -0,0 +1,235 @@
const std = @import("index.zig");
const builtin = @import("builtin");
const assert = std.debug.assert;
const event = this;
const mem = std.mem;
const posix = std.os.posix;
pub const TcpServer = struct {
handleRequestFn: async<&mem.Allocator> fn (&TcpServer, &const std.net.Address, &const std.os.File) void,
loop: &Loop,
sockfd: i32,
accept_coro: ?promise,
listen_address: std.net.Address,
waiting_for_emfile_node: PromiseNode,
const PromiseNode = std.LinkedList(promise).Node;
pub fn init(loop: &Loop) !TcpServer {
const sockfd = try std.os.posixSocket(posix.AF_INET,
posix.SOCK_STREAM|posix.SOCK_CLOEXEC|posix.SOCK_NONBLOCK,
posix.PROTO_tcp);
errdefer std.os.close(sockfd);
// TODO can't initialize handler coroutine here because we need well defined copy elision
return TcpServer {
.loop = loop,
.sockfd = sockfd,
.accept_coro = null,
.handleRequestFn = undefined,
.waiting_for_emfile_node = undefined,
.listen_address = undefined,
};
}
pub fn listen(self: &TcpServer, address: &const std.net.Address,
handleRequestFn: async<&mem.Allocator> fn (&TcpServer, &const std.net.Address, &const std.os.File)void) !void
{
self.handleRequestFn = handleRequestFn;
try std.os.posixBind(self.sockfd, &address.os_addr);
try std.os.posixListen(self.sockfd, posix.SOMAXCONN);
self.listen_address = std.net.Address.initPosix(try std.os.posixGetSockName(self.sockfd));
self.accept_coro = try async<self.loop.allocator> TcpServer.handler(self);
errdefer cancel ??self.accept_coro;
try self.loop.addFd(self.sockfd, ??self.accept_coro);
errdefer self.loop.removeFd(self.sockfd);
}
pub fn deinit(self: &TcpServer) void {
self.loop.removeFd(self.sockfd);
if (self.accept_coro) |accept_coro| cancel accept_coro;
std.os.close(self.sockfd);
}
pub async fn handler(self: &TcpServer) void {
while (true) {
var accepted_addr: std.net.Address = undefined;
if (std.os.posixAccept(self.sockfd, &accepted_addr.os_addr,
posix.SOCK_NONBLOCK | posix.SOCK_CLOEXEC)) |accepted_fd|
{
var socket = std.os.File.openHandle(accepted_fd);
_ = async<self.loop.allocator> self.handleRequestFn(self, accepted_addr, socket) catch |err| switch (err) {
error.OutOfMemory => {
socket.close();
continue;
},
};
} else |err| switch (err) {
error.WouldBlock => {
suspend; // we will get resumed by epoll_wait in the event loop
continue;
},
error.ProcessFdQuotaExceeded => {
errdefer std.os.emfile_promise_queue.remove(&self.waiting_for_emfile_node);
suspend |p| {
self.waiting_for_emfile_node = PromiseNode.init(p);
std.os.emfile_promise_queue.append(&self.waiting_for_emfile_node);
}
continue;
},
error.ConnectionAborted,
error.FileDescriptorClosed => continue,
error.PageFault => unreachable,
error.InvalidSyscall => unreachable,
error.FileDescriptorNotASocket => unreachable,
error.OperationNotSupported => unreachable,
error.SystemFdQuotaExceeded,
error.SystemResources,
error.ProtocolFailure,
error.BlockedByFirewall,
error.Unexpected => {
@panic("TODO handle this error");
},
}
}
}
};
pub const Loop = struct {
allocator: &mem.Allocator,
epollfd: i32,
keep_running: bool,
fn init(allocator: &mem.Allocator) !Loop {
const epollfd = try std.os.linuxEpollCreate(std.os.linux.EPOLL_CLOEXEC);
return Loop {
.keep_running = true,
.allocator = allocator,
.epollfd = epollfd,
};
}
pub fn addFd(self: &Loop, fd: i32, prom: promise) !void {
var ev = std.os.linux.epoll_event {
.events = std.os.linux.EPOLLIN|std.os.linux.EPOLLOUT|std.os.linux.EPOLLET,
.data = std.os.linux.epoll_data {
.ptr = @ptrToInt(prom),
},
};
try std.os.linuxEpollCtl(self.epollfd, std.os.linux.EPOLL_CTL_ADD, fd, &ev);
}
pub fn removeFd(self: &Loop, fd: i32) void {
std.os.linuxEpollCtl(self.epollfd, std.os.linux.EPOLL_CTL_DEL, fd, undefined) catch {};
}
async fn waitFd(self: &Loop, fd: i32) !void {
defer self.removeFd(fd);
suspend |p| {
try self.addFd(fd, p);
}
}
pub fn stop(self: &Loop) void {
// TODO make atomic
self.keep_running = false;
// TODO activate an fd in the epoll set
}
pub fn run(self: &Loop) void {
while (self.keep_running) {
var events: [16]std.os.linux.epoll_event = undefined;
const count = std.os.linuxEpollWait(self.epollfd, events[0..], -1);
for (events[0..count]) |ev| {
const p = @intToPtr(promise, ev.data.ptr);
resume p;
}
}
}
};
pub async fn connect(loop: &Loop, _address: &const std.net.Address) !std.os.File {
var address = *_address; // TODO https://github.com/zig-lang/zig/issues/733
const sockfd = try std.os.posixSocket(posix.AF_INET, posix.SOCK_STREAM|posix.SOCK_CLOEXEC|posix.SOCK_NONBLOCK, posix.PROTO_tcp);
errdefer std.os.close(sockfd);
try std.os.posixConnectAsync(sockfd, &address.os_addr);
try await try async loop.waitFd(sockfd);
try std.os.posixGetSockOptConnectError(sockfd);
return std.os.File.openHandle(sockfd);
}
test "listen on a port, send bytes, receive bytes" {
if (builtin.os != builtin.Os.linux) {
// TODO build abstractions for other operating systems
return;
}
const MyServer = struct {
tcp_server: TcpServer,
const Self = this;
async<&mem.Allocator> fn handler(tcp_server: &TcpServer, _addr: &const std.net.Address,
_socket: &const std.os.File) void
{
const self = @fieldParentPtr(Self, "tcp_server", tcp_server);
var socket = *_socket; // TODO https://github.com/zig-lang/zig/issues/733
defer socket.close();
const next_handler = async errorableHandler(self, _addr, socket) catch |err| switch (err) {
error.OutOfMemory => @panic("unable to handle connection: out of memory"),
};
(await next_handler) catch |err| {
std.debug.panic("unable to handle connection: {}\n", err);
};
suspend |p| { cancel p; }
}
async fn errorableHandler(self: &Self, _addr: &const std.net.Address,
_socket: &const std.os.File) !void
{
const addr = *_addr; // TODO https://github.com/zig-lang/zig/issues/733
var socket = *_socket; // TODO https://github.com/zig-lang/zig/issues/733
var adapter = std.io.FileOutStream.init(&socket);
var stream = &adapter.stream;
try stream.print("hello from server\n");
}
};
const ip4addr = std.net.parseIp4("127.0.0.1") catch unreachable;
const addr = std.net.Address.initIp4(ip4addr, 0);
var loop = try Loop.init(std.debug.global_allocator);
var server = MyServer {
.tcp_server = try TcpServer.init(&loop),
};
defer server.tcp_server.deinit();
try server.tcp_server.listen(addr, MyServer.handler);
const p = try async<std.debug.global_allocator> doAsyncTest(&loop, server.tcp_server.listen_address);
defer cancel p;
loop.run();
}
async fn doAsyncTest(loop: &Loop, address: &const std.net.Address) void {
errdefer @panic("test failure");
var socket_file = try await try async event.connect(loop, address);
defer socket_file.close();
var buf: [512]u8 = undefined;
const amt_read = try socket_file.read(buf[0..]);
const msg = buf[0..amt_read];
assert(mem.eql(u8, msg, "hello from server\n"));
loop.stop();
}

2
std/fmt/index.zig
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@ -465,7 +465,7 @@ pub fn parseUnsigned(comptime T: type, buf: []const u8, radix: u8) ParseUnsigned
return x;
}
fn charToDigit(c: u8, radix: u8) (error{InvalidCharacter}!u8) {
pub fn charToDigit(c: u8, radix: u8) (error{InvalidCharacter}!u8) {
const value = switch (c) {
'0' ... '9' => c - '0',
'A' ... 'Z' => c - 'A' + 10,

112
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// Adler32 checksum.
//
// https://tools.ietf.org/html/rfc1950#section-9
// https://github.com/madler/zlib/blob/master/adler32.c
const std = @import("../index.zig");
const debug = std.debug;
pub const Adler32 = struct {
const base = 65521;
const nmax = 5552;
adler: u32,
pub fn init() Adler32 {
return Adler32 {
.adler = 1,
};
}
// This fast variant is taken from zlib. It reduces the required modulos and unrolls longer
// buffer inputs and should be much quicker.
pub fn update(self: &Adler32, input: []const u8) void {
var s1 = self.adler & 0xffff;
var s2 = (self.adler >> 16) & 0xffff;
if (input.len == 1) {
s1 +%= input[0];
if (s1 >= base) {
s1 -= base;
}
s2 +%= s1;
if (s2 >= base) {
s2 -= base;
}
}
else if (input.len < 16) {
for (input) |b| {
s1 +%= b;
s2 +%= s1;
}
if (s1 >= base) {
s1 -= base;
}
s2 %= base;
}
else {
var i: usize = 0;
while (i + nmax <= input.len) : (i += nmax) {
const n = nmax / 16; // note: 16 | nmax
var rounds: usize = 0;
while (rounds < n) : (rounds += 1) {
comptime var j: usize = 0;
inline while (j < 16) : (j += 1) {
s1 +%= input[i + n * j];
s2 +%= s1;
}
}
}
if (i < input.len) {
while (i + 16 <= input.len) : (i += 16) {
comptime var j: usize = 0;
inline while (j < 16) : (j += 1) {
s1 +%= input[i + j];
s2 +%= s1;
}
}
while (i < input.len) : (i += 1) {
s1 +%= input[i];
s2 +%= s1;
}
s1 %= base;
s2 %= base;
}
}
self.adler = s1 | (s2 << 16);
}
pub fn final(self: &Adler32) u32 {
return self.adler;
}
pub fn hash(input: []const u8) u32 {
var c = Adler32.init();
c.update(input);
return c.final();
}
};
test "adler32 sanity" {
debug.assert(Adler32.hash("a") == 0x620062);
debug.assert(Adler32.hash("example") == 0xbc002ed);
}
test "adler32 long" {
const long1 = []u8 {1} ** 1024;
debug.assert(Adler32.hash(long1[0..]) == 0x06780401);
const long2 = []u8 {1} ** 1025;
debug.assert(Adler32.hash(long2[0..]) == 0x0a7a0402);
}
test "adler32 very long" {
const long = []u8 {1} ** 5553;
debug.assert(Adler32.hash(long[0..]) == 0x707f15b2);
}

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// There are two implementations of CRC32 implemented with the following key characteristics:
//
// - Crc32WithPoly uses 8Kb of tables but is ~10x faster than the small method.
//
// - Crc32SmallWithPoly uses only 64 bytes of memory but is slower. Be aware that this is
// still moderately fast just slow relative to the slicing approach.
const std = @import("../index.zig");
const debug = std.debug;
pub const Polynomial = struct {
const IEEE = 0xedb88320;
const Castagnoli = 0x82f63b78;
const Koopman = 0xeb31d82e;
};
// IEEE is by far the most common CRC and so is aliased by default.
pub const Crc32 = Crc32WithPoly(Polynomial.IEEE);
// slicing-by-8 crc32 implementation.
pub fn Crc32WithPoly(comptime poly: u32) type {
return struct {
const Self = this;
const lookup_tables = comptime block: {
@setEvalBranchQuota(20000);
var tables: [8][256]u32 = undefined;
for (tables[0]) |*e, i| {
var crc = u32(i);
var j: usize = 0; while (j < 8) : (j += 1) {
if (crc & 1 == 1) {
crc = (crc >> 1) ^ poly;
} else {
crc = (crc >> 1);
}
}
*e = crc;
}
var i: usize = 0;
while (i < 256) : (i += 1) {
var crc = tables[0][i];
var j: usize = 1; while (j < 8) : (j += 1) {
const index = @truncate(u8, crc);
crc = tables[0][index] ^ (crc >> 8);
tables[j][i] = crc;
}
}
break :block tables;
};
crc: u32,
pub fn init() Self {
return Self {
.crc = 0xffffffff,
};
}
pub fn update(self: &Self, input: []const u8) void {
var i: usize = 0;
while (i + 8 <= input.len) : (i += 8) {
const p = input[i..i+8];
// Unrolling this way gives ~50Mb/s increase
self.crc ^= (u32(p[0]) << 0);
self.crc ^= (u32(p[1]) << 8);
self.crc ^= (u32(p[2]) << 16);
self.crc ^= (u32(p[3]) << 24);
self.crc =
lookup_tables[0][p[7]] ^
lookup_tables[1][p[6]] ^
lookup_tables[2][p[5]] ^
lookup_tables[3][p[4]] ^
lookup_tables[4][@truncate(u8, self.crc >> 24)] ^
lookup_tables[5][@truncate(u8, self.crc >> 16)] ^
lookup_tables[6][@truncate(u8, self.crc >> 8)] ^
lookup_tables[7][@truncate(u8, self.crc >> 0)];
}
while (i < input.len) : (i += 1) {
const index = @truncate(u8, self.crc) ^ input[i];
self.crc = (self.crc >> 8) ^ lookup_tables[0][index];
}
}
pub fn final(self: &Self) u32 {
return ~self.crc;
}
pub fn hash(input: []const u8) u32 {
var c = Self.init();
c.update(input);
return c.final();
}
};
}
test "crc32 ieee" {
const Crc32Ieee = Crc32WithPoly(Polynomial.IEEE);
debug.assert(Crc32Ieee.hash("") == 0x00000000);
debug.assert(Crc32Ieee.hash("a") == 0xe8b7be43);
debug.assert(Crc32Ieee.hash("abc") == 0x352441c2);
}
test "crc32 castagnoli" {
const Crc32Castagnoli = Crc32WithPoly(Polynomial.Castagnoli);
debug.assert(Crc32Castagnoli.hash("") == 0x00000000);
debug.assert(Crc32Castagnoli.hash("a") == 0xc1d04330);
debug.assert(Crc32Castagnoli.hash("abc") == 0x364b3fb7);
}
// half-byte lookup table implementation.
pub fn Crc32SmallWithPoly(comptime poly: u32) type {
return struct {
const Self = this;
const lookup_table = comptime block: {
var table: [16]u32 = undefined;
for (table) |*e, i| {
var crc = u32(i * 16);
var j: usize = 0; while (j < 8) : (j += 1) {
if (crc & 1 == 1) {
crc = (crc >> 1) ^ poly;
} else {
crc = (crc >> 1);
}
}
*e = crc;
}
break :block table;
};
crc: u32,
pub fn init() Self {
return Self {
.crc = 0xffffffff,
};
}
pub fn update(self: &Self, input: []const u8) void {
for (input) |b| {
self.crc = lookup_table[@truncate(u4, self.crc ^ (b >> 0))] ^ (self.crc >> 4);
self.crc = lookup_table[@truncate(u4, self.crc ^ (b >> 4))] ^ (self.crc >> 4);
}
}
pub fn final(self: &Self) u32 {
return ~self.crc;
}
pub fn hash(input: []const u8) u32 {
var c = Self.init();
c.update(input);
return c.final();
}
};
}
test "small crc32 ieee" {
const Crc32Ieee = Crc32SmallWithPoly(Polynomial.IEEE);
debug.assert(Crc32Ieee.hash("") == 0x00000000);
debug.assert(Crc32Ieee.hash("a") == 0xe8b7be43);
debug.assert(Crc32Ieee.hash("abc") == 0x352441c2);
}
test "small crc32 castagnoli" {
const Crc32Castagnoli = Crc32SmallWithPoly(Polynomial.Castagnoli);
debug.assert(Crc32Castagnoli.hash("") == 0x00000000);
debug.assert(Crc32Castagnoli.hash("a") == 0xc1d04330);
debug.assert(Crc32Castagnoli.hash("abc") == 0x364b3fb7);
}

60
std/hash/fnv.zig Normal file
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@ -0,0 +1,60 @@
// FNV1a - Fowler-Noll-Vo hash function
//
// FNV1a is a fast, non-cryptographic hash function with fairly good distribution properties.
//
// https://tools.ietf.org/html/draft-eastlake-fnv-14
const std = @import("../index.zig");
const debug = std.debug;
pub const Fnv1a_32 = Fnv1a(u32, 0x01000193 , 0x811c9dc5);
pub const Fnv1a_64 = Fnv1a(u64, 0x100000001b3, 0xcbf29ce484222325);
pub const Fnv1a_128 = Fnv1a(u128, 0x1000000000000000000013b, 0x6c62272e07bb014262b821756295c58d);
fn Fnv1a(comptime T: type, comptime prime: T, comptime offset: T) type {
return struct {
const Self = this;
value: T,
pub fn init() Self {
return Self {
.value = offset,
};
}
pub fn update(self: &Self, input: []const u8) void {
for (input) |b| {
self.value ^= b;
self.value *%= prime;
}
}
pub fn final(self: &Self) T {
return self.value;
}
pub fn hash(input: []const u8) T {
var c = Self.init();
c.update(input);
return c.final();
}
};
}
test "fnv1a-32" {
debug.assert(Fnv1a_32.hash("") == 0x811c9dc5);
debug.assert(Fnv1a_32.hash("a") == 0xe40c292c);
debug.assert(Fnv1a_32.hash("foobar") == 0xbf9cf968);
}
test "fnv1a-64" {
debug.assert(Fnv1a_64.hash("") == 0xcbf29ce484222325);
debug.assert(Fnv1a_64.hash("a") == 0xaf63dc4c8601ec8c);
debug.assert(Fnv1a_64.hash("foobar") == 0x85944171f73967e8);
}
test "fnv1a-128" {
debug.assert(Fnv1a_128.hash("") == 0x6c62272e07bb014262b821756295c58d);
debug.assert(Fnv1a_128.hash("a") == 0xd228cb696f1a8caf78912b704e4a8964);
}

22
std/hash/index.zig Normal file
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@ -0,0 +1,22 @@
const adler = @import("adler.zig");
pub const Adler32 = adler.Adler32;
// pub for polynomials + generic crc32 construction
pub const crc = @import("crc.zig");
pub const Crc32 = crc.Crc32;
const fnv = @import("fnv.zig");
pub const Fnv1a_32 = fnv.Fnv1a_32;
pub const Fnv1a_64 = fnv.Fnv1a_64;
pub const Fnv1a_128 = fnv.Fnv1a_128;
const siphash = @import("siphash.zig");
pub const SipHash64 = siphash.SipHash64;
pub const SipHash128 = siphash.SipHash128;
test "hash" {
_ = @import("adler.zig");
_ = @import("crc.zig");
_ = @import("fnv.zig");
_ = @import("siphash.zig");
}

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std/hash/siphash.zig Normal file
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@ -0,0 +1,320 @@
// Siphash
//
// SipHash is a moderately fast, non-cryptographic keyed hash function designed for resistance
// against hash flooding DoS attacks.
//
// https://131002.net/siphash/
const std = @import("../index.zig");
const debug = std.debug;
const math = std.math;
const mem = std.mem;
const Endian = @import("builtin").Endian;
pub fn SipHash64(comptime c_rounds: usize, comptime d_rounds: usize) type {
return SipHash(u64, c_rounds, d_rounds);
}
pub fn SipHash128(comptime c_rounds: usize, comptime d_rounds: usize) type {
return SipHash(u128, c_rounds, d_rounds);
}
fn SipHash(comptime T: type, comptime c_rounds: usize, comptime d_rounds: usize) type {
debug.assert(T == u64 or T == u128);
debug.assert(c_rounds > 0 and d_rounds > 0);
return struct {
const Self = this;
const digest_size = 64;
const block_size = 64;
v0: u64,
v1: u64,
v2: u64,
v3: u64,
// streaming cache
buf: [8]u8,
buf_len: usize,
msg_len: u8,
pub fn init(key: []const u8) Self {
debug.assert(key.len >= 16);
const k0 = mem.readInt(key[0..8], u64, Endian.Little);
const k1 = mem.readInt(key[8..16], u64, Endian.Little);
var d = Self {
.v0 = k0 ^ 0x736f6d6570736575,
.v1 = k1 ^ 0x646f72616e646f6d,
.v2 = k0 ^ 0x6c7967656e657261,
.v3 = k1 ^ 0x7465646279746573,
.buf = undefined,
.buf_len = 0,
.msg_len = 0,
};
if (T == u128) {
d.v1 ^= 0xee;
}
return d;
}
pub fn update(d: &Self, b: []const u8) void {
var off: usize = 0;
// Partial from previous.
if (d.buf_len != 0 and d.buf_len + b.len > 8) {
off += 8 - d.buf_len;
mem.copy(u8, d.buf[d.buf_len..], b[0..off]);
d.round(d.buf[0..]);
d.buf_len = 0;
}
// Full middle blocks.
while (off + 8 <= b.len) : (off += 8) {
d.round(b[off..off + 8]);
}
// Remainder for next pass.
mem.copy(u8, d.buf[d.buf_len..], b[off..]);
d.buf_len += u8(b[off..].len);
d.msg_len +%= @truncate(u8, b.len);
}
pub fn final(d: &Self) T {
// Padding
mem.set(u8, d.buf[d.buf_len..], 0);
d.buf[7] = d.msg_len;
d.round(d.buf[0..]);
if (T == u128) {
d.v2 ^= 0xee;
} else {
d.v2 ^= 0xff;
}
comptime var i: usize = 0;
inline while (i < d_rounds) : (i += 1) {
@inlineCall(sipRound, d);
}
const b1 = d.v0 ^ d.v1 ^ d.v2 ^ d.v3;
if (T == u64) {
return b1;
}
d.v1 ^= 0xdd;
comptime var j: usize = 0;
inline while (j < d_rounds) : (j += 1) {
@inlineCall(sipRound, d);
}
const b2 = d.v0 ^ d.v1 ^ d.v2 ^ d.v3;
return (u128(b2) << 64) | b1;
}
fn round(d: &Self, b: []const u8) void {
debug.assert(b.len == 8);
const m = mem.readInt(b[0..], u64, Endian.Little);
d.v3 ^= m;
comptime var i: usize = 0;
inline while (i < c_rounds) : (i += 1) {
@inlineCall(sipRound, d);
}
d.v0 ^= m;
}
fn sipRound(d: &Self) void {
d.v0 +%= d.v1;
d.v1 = math.rotl(u64, d.v1, u64(13));
d.v1 ^= d.v0;
d.v0 = math.rotl(u64, d.v0, u64(32));
d.v2 +%= d.v3;
d.v3 = math.rotl(u64, d.v3, u64(16));
d.v3 ^= d.v2;
d.v0 +%= d.v3;
d.v3 = math.rotl(u64, d.v3, u64(21));
d.v3 ^= d.v0;
d.v2 +%= d.v1;
d.v1 = math.rotl(u64, d.v1, u64(17));
d.v1 ^= d.v2;
d.v2 = math.rotl(u64, d.v2, u64(32));
}
pub fn hash(key: []const u8, input: []const u8) T {
var c = Self.init(key);
c.update(input);
return c.final();
}
};
}
// Test vectors from reference implementation.
// https://github.com/veorq/SipHash/blob/master/vectors.h
const test_key = "\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f";
test "siphash64-2-4 sanity" {
const vectors = [][]const u8 {
"\x31\x0e\x0e\xdd\x47\xdb\x6f\x72", // ""
"\xfd\x67\xdc\x93\xc5\x39\xf8\x74", // "\x00"
"\x5a\x4f\xa9\xd9\x09\x80\x6c\x0d", // "\x00\x01" ... etc
"\x2d\x7e\xfb\xd7\x96\x66\x67\x85",
"\xb7\x87\x71\x27\xe0\x94\x27\xcf",
"\x8d\xa6\x99\xcd\x64\x55\x76\x18",
"\xce\xe3\xfe\x58\x6e\x46\xc9\xcb",
"\x37\xd1\x01\x8b\xf5\x00\x02\xab",
"\x62\x24\x93\x9a\x79\xf5\xf5\x93",
"\xb0\xe4\xa9\x0b\xdf\x82\x00\x9e",
"\xf3\xb9\xdd\x94\xc5\xbb\x5d\x7a",
"\xa7\xad\x6b\x22\x46\x2f\xb3\xf4",
"\xfb\xe5\x0e\x86\xbc\x8f\x1e\x75",
"\x90\x3d\x84\xc0\x27\x56\xea\x14",
"\xee\xf2\x7a\x8e\x90\xca\x23\xf7",
"\xe5\x45\xbe\x49\x61\xca\x29\xa1",
"\xdb\x9b\xc2\x57\x7f\xcc\x2a\x3f",
"\x94\x47\xbe\x2c\xf5\xe9\x9a\x69",
"\x9c\xd3\x8d\x96\xf0\xb3\xc1\x4b",
"\xbd\x61\x79\xa7\x1d\xc9\x6d\xbb",
"\x98\xee\xa2\x1a\xf2\x5c\xd6\xbe",
"\xc7\x67\x3b\x2e\xb0\xcb\xf2\xd0",
"\x88\x3e\xa3\xe3\x95\x67\x53\x93",
"\xc8\xce\x5c\xcd\x8c\x03\x0c\xa8",
"\x94\xaf\x49\xf6\xc6\x50\xad\xb8",
"\xea\xb8\x85\x8a\xde\x92\xe1\xbc",
"\xf3\x15\xbb\x5b\xb8\x35\xd8\x17",
"\xad\xcf\x6b\x07\x63\x61\x2e\x2f",
"\xa5\xc9\x1d\xa7\xac\xaa\x4d\xde",
"\x71\x65\x95\x87\x66\x50\xa2\xa6",
"\x28\xef\x49\x5c\x53\xa3\x87\xad",
"\x42\xc3\x41\xd8\xfa\x92\xd8\x32",
"\xce\x7c\xf2\x72\x2f\x51\x27\x71",
"\xe3\x78\x59\xf9\x46\x23\xf3\xa7",
"\x38\x12\x05\xbb\x1a\xb0\xe0\x12",
"\xae\x97\xa1\x0f\xd4\x34\xe0\x15",
"\xb4\xa3\x15\x08\xbe\xff\x4d\x31",
"\x81\x39\x62\x29\xf0\x90\x79\x02",
"\x4d\x0c\xf4\x9e\xe5\xd4\xdc\xca",
"\x5c\x73\x33\x6a\x76\xd8\xbf\x9a",
"\xd0\xa7\x04\x53\x6b\xa9\x3e\x0e",
"\x92\x59\x58\xfc\xd6\x42\x0c\xad",
"\xa9\x15\xc2\x9b\xc8\x06\x73\x18",
"\x95\x2b\x79\xf3\xbc\x0a\xa6\xd4",
"\xf2\x1d\xf2\xe4\x1d\x45\x35\xf9",
"\x87\x57\x75\x19\x04\x8f\x53\xa9",
"\x10\xa5\x6c\xf5\xdf\xcd\x9a\xdb",
"\xeb\x75\x09\x5c\xcd\x98\x6c\xd0",
"\x51\xa9\xcb\x9e\xcb\xa3\x12\xe6",
"\x96\xaf\xad\xfc\x2c\xe6\x66\xc7",
"\x72\xfe\x52\x97\x5a\x43\x64\xee",
"\x5a\x16\x45\xb2\x76\xd5\x92\xa1",
"\xb2\x74\xcb\x8e\xbf\x87\x87\x0a",
"\x6f\x9b\xb4\x20\x3d\xe7\xb3\x81",
"\xea\xec\xb2\xa3\x0b\x22\xa8\x7f",
"\x99\x24\xa4\x3c\xc1\x31\x57\x24",
"\xbd\x83\x8d\x3a\xaf\xbf\x8d\xb7",
"\x0b\x1a\x2a\x32\x65\xd5\x1a\xea",
"\x13\x50\x79\xa3\x23\x1c\xe6\x60",
"\x93\x2b\x28\x46\xe4\xd7\x06\x66",
"\xe1\x91\x5f\x5c\xb1\xec\xa4\x6c",
"\xf3\x25\x96\x5c\xa1\x6d\x62\x9f",
"\x57\x5f\xf2\x8e\x60\x38\x1b\xe5",
"\x72\x45\x06\xeb\x4c\x32\x8a\x95",
};
const siphash = SipHash64(2, 4);
var buffer: [64]u8 = undefined;
for (vectors) |vector, i| {
buffer[i] = u8(i);
const expected = mem.readInt(vector, u64, Endian.Little);
debug.assert(siphash.hash(test_key, buffer[0..i]) == expected);
}
}
test "siphash128-2-4 sanity" {
const vectors = [][]const u8 {
"\xa3\x81\x7f\x04\xba\x25\xa8\xe6\x6d\xf6\x72\x14\xc7\x55\x02\x93",
"\xda\x87\xc1\xd8\x6b\x99\xaf\x44\x34\x76\x59\x11\x9b\x22\xfc\x45",
"\x81\x77\x22\x8d\xa4\xa4\x5d\xc7\xfc\xa3\x8b\xde\xf6\x0a\xff\xe4",
"\x9c\x70\xb6\x0c\x52\x67\xa9\x4e\x5f\x33\xb6\xb0\x29\x85\xed\x51",
"\xf8\x81\x64\xc1\x2d\x9c\x8f\xaf\x7d\x0f\x6e\x7c\x7b\xcd\x55\x79",
"\x13\x68\x87\x59\x80\x77\x6f\x88\x54\x52\x7a\x07\x69\x0e\x96\x27",
"\x14\xee\xca\x33\x8b\x20\x86\x13\x48\x5e\xa0\x30\x8f\xd7\xa1\x5e",
"\xa1\xf1\xeb\xbe\xd8\xdb\xc1\x53\xc0\xb8\x4a\xa6\x1f\xf0\x82\x39",
"\x3b\x62\xa9\xba\x62\x58\xf5\x61\x0f\x83\xe2\x64\xf3\x14\x97\xb4",
"\x26\x44\x99\x06\x0a\xd9\xba\xab\xc4\x7f\x8b\x02\xbb\x6d\x71\xed",
"\x00\x11\x0d\xc3\x78\x14\x69\x56\xc9\x54\x47\xd3\xf3\xd0\xfb\xba",
"\x01\x51\xc5\x68\x38\x6b\x66\x77\xa2\xb4\xdc\x6f\x81\xe5\xdc\x18",
"\xd6\x26\xb2\x66\x90\x5e\xf3\x58\x82\x63\x4d\xf6\x85\x32\xc1\x25",
"\x98\x69\xe2\x47\xe9\xc0\x8b\x10\xd0\x29\x93\x4f\xc4\xb9\x52\xf7",
"\x31\xfc\xef\xac\x66\xd7\xde\x9c\x7e\xc7\x48\x5f\xe4\x49\x49\x02",
"\x54\x93\xe9\x99\x33\xb0\xa8\x11\x7e\x08\xec\x0f\x97\xcf\xc3\xd9",
"\x6e\xe2\xa4\xca\x67\xb0\x54\xbb\xfd\x33\x15\xbf\x85\x23\x05\x77",
"\x47\x3d\x06\xe8\x73\x8d\xb8\x98\x54\xc0\x66\xc4\x7a\xe4\x77\x40",
"\xa4\x26\xe5\xe4\x23\xbf\x48\x85\x29\x4d\xa4\x81\xfe\xae\xf7\x23",
"\x78\x01\x77\x31\xcf\x65\xfa\xb0\x74\xd5\x20\x89\x52\x51\x2e\xb1",
"\x9e\x25\xfc\x83\x3f\x22\x90\x73\x3e\x93\x44\xa5\xe8\x38\x39\xeb",
"\x56\x8e\x49\x5a\xbe\x52\x5a\x21\x8a\x22\x14\xcd\x3e\x07\x1d\x12",
"\x4a\x29\xb5\x45\x52\xd1\x6b\x9a\x46\x9c\x10\x52\x8e\xff\x0a\xae",
"\xc9\xd1\x84\xdd\xd5\xa9\xf5\xe0\xcf\x8c\xe2\x9a\x9a\xbf\x69\x1c",
"\x2d\xb4\x79\xae\x78\xbd\x50\xd8\x88\x2a\x8a\x17\x8a\x61\x32\xad",
"\x8e\xce\x5f\x04\x2d\x5e\x44\x7b\x50\x51\xb9\xea\xcb\x8d\x8f\x6f",
"\x9c\x0b\x53\xb4\xb3\xc3\x07\xe8\x7e\xae\xe0\x86\x78\x14\x1f\x66",
"\xab\xf2\x48\xaf\x69\xa6\xea\xe4\xbf\xd3\xeb\x2f\x12\x9e\xeb\x94",
"\x06\x64\xda\x16\x68\x57\x4b\x88\xb9\x35\xf3\x02\x73\x58\xae\xf4",
"\xaa\x4b\x9d\xc4\xbf\x33\x7d\xe9\x0c\xd4\xfd\x3c\x46\x7c\x6a\xb7",
"\xea\x5c\x7f\x47\x1f\xaf\x6b\xde\x2b\x1a\xd7\xd4\x68\x6d\x22\x87",
"\x29\x39\xb0\x18\x32\x23\xfa\xfc\x17\x23\xde\x4f\x52\xc4\x3d\x35",
"\x7c\x39\x56\xca\x5e\xea\xfc\x3e\x36\x3e\x9d\x55\x65\x46\xeb\x68",
"\x77\xc6\x07\x71\x46\xf0\x1c\x32\xb6\xb6\x9d\x5f\x4e\xa9\xff\xcf",
"\x37\xa6\x98\x6c\xb8\x84\x7e\xdf\x09\x25\xf0\xf1\x30\x9b\x54\xde",
"\xa7\x05\xf0\xe6\x9d\xa9\xa8\xf9\x07\x24\x1a\x2e\x92\x3c\x8c\xc8",
"\x3d\xc4\x7d\x1f\x29\xc4\x48\x46\x1e\x9e\x76\xed\x90\x4f\x67\x11",
"\x0d\x62\xbf\x01\xe6\xfc\x0e\x1a\x0d\x3c\x47\x51\xc5\xd3\x69\x2b",
"\x8c\x03\x46\x8b\xca\x7c\x66\x9e\xe4\xfd\x5e\x08\x4b\xbe\xe7\xb5",
"\x52\x8a\x5b\xb9\x3b\xaf\x2c\x9c\x44\x73\xcc\xe5\xd0\xd2\x2b\xd9",
"\xdf\x6a\x30\x1e\x95\xc9\x5d\xad\x97\xae\x0c\xc8\xc6\x91\x3b\xd8",
"\x80\x11\x89\x90\x2c\x85\x7f\x39\xe7\x35\x91\x28\x5e\x70\xb6\xdb",
"\xe6\x17\x34\x6a\xc9\xc2\x31\xbb\x36\x50\xae\x34\xcc\xca\x0c\x5b",
"\x27\xd9\x34\x37\xef\xb7\x21\xaa\x40\x18\x21\xdc\xec\x5a\xdf\x89",
"\x89\x23\x7d\x9d\xed\x9c\x5e\x78\xd8\xb1\xc9\xb1\x66\xcc\x73\x42",
"\x4a\x6d\x80\x91\xbf\x5e\x7d\x65\x11\x89\xfa\x94\xa2\x50\xb1\x4c",
"\x0e\x33\xf9\x60\x55\xe7\xae\x89\x3f\xfc\x0e\x3d\xcf\x49\x29\x02",
"\xe6\x1c\x43\x2b\x72\x0b\x19\xd1\x8e\xc8\xd8\x4b\xdc\x63\x15\x1b",
"\xf7\xe5\xae\xf5\x49\xf7\x82\xcf\x37\x90\x55\xa6\x08\x26\x9b\x16",
"\x43\x8d\x03\x0f\xd0\xb7\xa5\x4f\xa8\x37\xf2\xad\x20\x1a\x64\x03",
"\xa5\x90\xd3\xee\x4f\xbf\x04\xe3\x24\x7e\x0d\x27\xf2\x86\x42\x3f",
"\x5f\xe2\xc1\xa1\x72\xfe\x93\xc4\xb1\x5c\xd3\x7c\xae\xf9\xf5\x38",
"\x2c\x97\x32\x5c\xbd\x06\xb3\x6e\xb2\x13\x3d\xd0\x8b\x3a\x01\x7c",
"\x92\xc8\x14\x22\x7a\x6b\xca\x94\x9f\xf0\x65\x9f\x00\x2a\xd3\x9e",
"\xdc\xe8\x50\x11\x0b\xd8\x32\x8c\xfb\xd5\x08\x41\xd6\x91\x1d\x87",
"\x67\xf1\x49\x84\xc7\xda\x79\x12\x48\xe3\x2b\xb5\x92\x25\x83\xda",
"\x19\x38\xf2\xcf\x72\xd5\x4e\xe9\x7e\x94\x16\x6f\xa9\x1d\x2a\x36",
"\x74\x48\x1e\x96\x46\xed\x49\xfe\x0f\x62\x24\x30\x16\x04\x69\x8e",
"\x57\xfc\xa5\xde\x98\xa9\xd6\xd8\x00\x64\x38\xd0\x58\x3d\x8a\x1d",
"\x9f\xec\xde\x1c\xef\xdc\x1c\xbe\xd4\x76\x36\x74\xd9\x57\x53\x59",
"\xe3\x04\x0c\x00\xeb\x28\xf1\x53\x66\xca\x73\xcb\xd8\x72\xe7\x40",
"\x76\x97\x00\x9a\x6a\x83\x1d\xfe\xcc\xa9\x1c\x59\x93\x67\x0f\x7a",
"\x58\x53\x54\x23\x21\xf5\x67\xa0\x05\xd5\x47\xa4\xf0\x47\x59\xbd",
"\x51\x50\xd1\x77\x2f\x50\x83\x4a\x50\x3e\x06\x9a\x97\x3f\xbd\x7c",
};
const siphash = SipHash128(2, 4);
var buffer: [64]u8 = undefined;
for (vectors) |vector, i| {
buffer[i] = u8(i);
const expected = mem.readInt(vector, u128, Endian.Little);
debug.assert(siphash.hash(test_key, buffer[0..i]) == expected);
}
}

6
std/hash_map.zig
View File

@ -114,6 +114,7 @@ pub fn HashMap(comptime K: type, comptime V: type,
}
pub fn remove(hm: &Self, key: K) ?&Entry {
if (hm.entries.len == 0) return null;
hm.incrementModificationCount();
const start_index = hm.keyToIndex(key);
{var roll_over: usize = 0; while (roll_over <= hm.max_distance_from_start_index) : (roll_over += 1) {
@ -236,7 +237,10 @@ pub fn HashMap(comptime K: type, comptime V: type,
}
test "basic hash map usage" {
var map = HashMap(i32, i32, hash_i32, eql_i32).init(debug.global_allocator);
var direct_allocator = std.heap.DirectAllocator.init();
defer direct_allocator.deinit();
var map = HashMap(i32, i32, hash_i32, eql_i32).init(&direct_allocator.allocator);
defer map.deinit();
assert((map.put(1, 11) catch unreachable) == null);

8
std/index.zig
View File

@ -17,8 +17,9 @@ pub const debug = @import("debug/index.zig");
pub const dwarf = @import("dwarf.zig");
pub const elf = @import("elf.zig");
pub const empty_import = @import("empty.zig");
pub const endian = @import("endian.zig");
pub const event = @import("event.zig");
pub const fmt = @import("fmt/index.zig");
pub const hash = @import("hash/index.zig");
pub const heap = @import("heap.zig");
pub const io = @import("io.zig");
pub const macho = @import("macho.zig");
@ -49,14 +50,15 @@ test "std" {
_ = @import("dwarf.zig");
_ = @import("elf.zig");
_ = @import("empty.zig");
_ = @import("endian.zig");
_ = @import("event.zig");
_ = @import("fmt/index.zig");
_ = @import("hash/index.zig");
_ = @import("io.zig");
_ = @import("macho.zig");
_ = @import("math/index.zig");
_ = @import("mem.zig");
_ = @import("heap.zig");
_ = @import("net.zig");
_ = @import("heap.zig");
_ = @import("os/index.zig");
_ = @import("rand/index.zig");
_ = @import("sort.zig");

5
std/io.zig
View File

@ -486,6 +486,11 @@ pub fn readLine(buf: []u8) !usize {
while (true) {
const byte = stream.readByte() catch return error.EndOfFile;
switch (byte) {
'\r' => {
// trash the following \n
_ = stream.readByte() catch return error.EndOfFile;
return index;
},
'\n' => return index,
else => {
if (index == buf.len) return error.InputTooLong;

1
std/linked_list.zig
View File

@ -161,6 +161,7 @@ fn BaseLinkedList(comptime T: type, comptime ParentType: type, comptime field_na
}
list.len -= 1;
assert(list.len == 0 or (list.first != null and list.last != null));
}
/// Remove and return the last node in the list.

26
std/mem.zig
View File

@ -3,6 +3,7 @@ const debug = std.debug;
const assert = debug.assert;
const math = std.math;
const builtin = @import("builtin");
const mem = this;
pub const Allocator = struct {
const Error = error {OutOfMemory};
@ -550,3 +551,28 @@ test "std.mem.rotate" {
assert(eql(i32, arr, []i32{ 1, 2, 4, 5, 3 }));
}
// TODO: When https://github.com/zig-lang/zig/issues/649 is solved these can be done by
// endian-casting the pointer and then dereferencing
pub fn endianSwapIfLe(comptime T: type, x: T) T {
return endianSwapIf(builtin.Endian.Little, T, x);
}
pub fn endianSwapIfBe(comptime T: type, x: T) T {
return endianSwapIf(builtin.Endian.Big, T, x);
}
pub fn endianSwapIf(endian: builtin.Endian, comptime T: type, x: T) T {
return if (builtin.endian == endian) endianSwap(T, x) else x;
}
pub fn endianSwap(comptime T: type, x: T) T {
var buf: [@sizeOf(T)]u8 = undefined;
mem.writeInt(buf[0..], x, builtin.Endian.Little);
return mem.readInt(buf, T, builtin.Endian.Big);
}
test "std.mem.endianSwap" {
assert(endianSwap(u32, 0xDEADBEEF) == 0xEFBEADDE);
}

295
std/net.zig
View File

@ -1,143 +1,120 @@
const std = @import("index.zig");
const linux = std.os.linux;
const builtin = @import("builtin");
const assert = std.debug.assert;
const endian = std.endian;
const net = this;
const posix = std.os.posix;
const mem = std.mem;
// TODO don't trust this file, it bit rotted. start over
pub const TmpWinAddr = struct {
family: u8,
data: [14]u8,
};
const Connection = struct {
socket_fd: i32,
pub const OsAddress = switch (builtin.os) {
builtin.Os.windows => TmpWinAddr,
else => posix.sockaddr,
};
pub fn send(c: Connection, buf: []const u8) !usize {
const send_ret = linux.sendto(c.socket_fd, buf.ptr, buf.len, 0, null, 0);
const send_err = linux.getErrno(send_ret);
switch (send_err) {
0 => return send_ret,
linux.EINVAL => unreachable,
linux.EFAULT => unreachable,
linux.ECONNRESET => return error.ConnectionReset,
linux.EINTR => return error.SigInterrupt,
// TODO there are more possible errors
else => return error.Unexpected,
}
pub const Address = struct {
os_addr: OsAddress,
pub fn initIp4(ip4: u32, port: u16) Address {
return Address {
.os_addr = posix.sockaddr {
.in = posix.sockaddr_in {
.family = posix.AF_INET,
.port = std.mem.endianSwapIfLe(u16, port),
.addr = ip4,
.zero = []u8{0} ** 8,
},
},
};
}
pub fn recv(c: Connection, buf: []u8) ![]u8 {
const recv_ret = linux.recvfrom(c.socket_fd, buf.ptr, buf.len, 0, null, null);
const recv_err = linux.getErrno(recv_ret);
switch (recv_err) {
0 => return buf[0..recv_ret],
linux.EINVAL => unreachable,
linux.EFAULT => unreachable,
linux.ENOTSOCK => return error.NotSocket,
linux.EINTR => return error.SigInterrupt,
linux.ENOMEM => return error.OutOfMemory,
linux.ECONNREFUSED => return error.ConnectionRefused,
linux.EBADF => return error.BadFd,
// TODO more error values
else => return error.Unexpected,
}
pub fn initIp6(ip6: &const Ip6Addr, port: u16) Address {
return Address {
.family = posix.AF_INET6,
.os_addr = posix.sockaddr {
.in6 = posix.sockaddr_in6 {
.family = posix.AF_INET6,
.port = std.mem.endianSwapIfLe(u16, port),
.flowinfo = 0,
.addr = ip6.addr,
.scope_id = ip6.scope_id,
},
},
};
}
pub fn close(c: Connection) !void {
switch (linux.getErrno(linux.close(c.socket_fd))) {
0 => return,
linux.EBADF => unreachable,
linux.EINTR => return error.SigInterrupt,
linux.EIO => return error.Io,
else => return error.Unexpected,
pub fn initPosix(addr: &const posix.sockaddr) Address {
return Address {
.os_addr = *addr,
};
}
pub fn format(self: &const Address, out_stream: var) !void {
switch (self.os_addr.in.family) {
posix.AF_INET => {
const native_endian_port = std.mem.endianSwapIfLe(u16, self.os_addr.in.port);
const bytes = ([]const u8)((&self.os_addr.in.addr)[0..1]);
try out_stream.print("{}.{}.{}.{}:{}", bytes[0], bytes[1], bytes[2], bytes[3], native_endian_port);
},
posix.AF_INET6 => {
const native_endian_port = std.mem.endianSwapIfLe(u16, self.os_addr.in6.port);
try out_stream.print("[TODO render ip6 address]:{}", native_endian_port);
},
else => try out_stream.write("(unrecognized address family)"),
}
}
};
const Address = struct {
family: u16,
pub fn parseIp4(buf: []const u8) !u32 {
var result: u32 = undefined;
const out_ptr = ([]u8)((&result)[0..1]);
var x: u8 = 0;
var index: u8 = 0;
var saw_any_digits = false;
for (buf) |c| {
if (c == '.') {
if (!saw_any_digits) {
return error.InvalidCharacter;
}
if (index == 3) {
return error.InvalidEnd;
}
out_ptr[index] = x;
index += 1;
x = 0;
saw_any_digits = false;
} else if (c >= '0' and c <= '9') {
saw_any_digits = true;
const digit = c - '0';
if (@mulWithOverflow(u8, x, 10, &x)) {
return error.Overflow;
}
if (@addWithOverflow(u8, x, digit, &x)) {
return error.Overflow;
}
} else {
return error.InvalidCharacter;
}
}
if (index == 3 and saw_any_digits) {
out_ptr[index] = x;
return result;
}
return error.Incomplete;
}
pub const Ip6Addr = struct {
scope_id: u32,
addr: [16]u8,
sort_key: i32,
};
pub fn lookup(hostname: []const u8, out_addrs: []Address) ![]Address {
if (hostname.len == 0) {
unreachable; // TODO
}
unreachable; // TODO
}
pub fn connectAddr(addr: &Address, port: u16) !Connection {
const socket_ret = linux.socket(addr.family, linux.SOCK_STREAM, linux.PROTO_tcp);
const socket_err = linux.getErrno(socket_ret);
if (socket_err > 0) {
// TODO figure out possible errors from socket()
return error.Unexpected;
}
const socket_fd = i32(socket_ret);
const connect_ret = if (addr.family == linux.AF_INET) x: {
var os_addr: linux.sockaddr_in = undefined;
os_addr.family = addr.family;
os_addr.port = endian.swapIfLe(u16, port);
@memcpy((&u8)(&os_addr.addr), &addr.addr[0], 4);
@memset(&os_addr.zero[0], 0, @sizeOf(@typeOf(os_addr.zero)));
break :x linux.connect(socket_fd, (&linux.sockaddr)(&os_addr), @sizeOf(linux.sockaddr_in));
} else if (addr.family == linux.AF_INET6) x: {
var os_addr: linux.sockaddr_in6 = undefined;
os_addr.family = addr.family;
os_addr.port = endian.swapIfLe(u16, port);
os_addr.flowinfo = 0;
os_addr.scope_id = addr.scope_id;
@memcpy(&os_addr.addr[0], &addr.addr[0], 16);
break :x linux.connect(socket_fd, (&linux.sockaddr)(&os_addr), @sizeOf(linux.sockaddr_in6));
} else {
unreachable;
};
const connect_err = linux.getErrno(connect_ret);
if (connect_err > 0) {
switch (connect_err) {
linux.ETIMEDOUT => return error.TimedOut,
else => {
// TODO figure out possible errors from connect()
return error.Unexpected;
},
}
}
return Connection {
.socket_fd = socket_fd,
};
}
pub fn connect(hostname: []const u8, port: u16) !Connection {
var addrs_buf: [1]Address = undefined;
const addrs_slice = try lookup(hostname, addrs_buf[0..]);
const main_addr = &addrs_slice[0];
return connectAddr(main_addr, port);
}
pub fn parseIpLiteral(buf: []const u8) !Address {
return error.InvalidIpLiteral;
}
fn hexDigit(c: u8) u8 {
// TODO use switch with range
if ('0' <= c and c <= '9') {
return c - '0';
} else if ('A' <= c and c <= 'Z') {
return c - 'A' + 10;
} else if ('a' <= c and c <= 'z') {
return c - 'a' + 10;
} else {
return @maxValue(u8);
}
}
fn parseIp6(buf: []const u8) !Address {
var result: Address = undefined;
result.family = linux.AF_INET6;
pub fn parseIp6(buf: []const u8) !Ip6Addr {
var result: Ip6Addr = undefined;
result.scope_id = 0;
const ip_slice = result.addr[0..];
@ -156,14 +133,14 @@ fn parseIp6(buf: []const u8) !Address {
return error.Overflow;
}
} else {
return error.InvalidChar;
return error.InvalidCharacter;
}
} else if (c == ':') {
if (!saw_any_digits) {
return error.InvalidChar;
return error.InvalidCharacter;
}
if (index == 14) {
return error.JunkAtEnd;
return error.InvalidEnd;
}
ip_slice[index] = @truncate(u8, x >> 8);
index += 1;
@ -174,7 +151,7 @@ fn parseIp6(buf: []const u8) !Address {
saw_any_digits = false;
} else if (c == '%') {
if (!saw_any_digits) {
return error.InvalidChar;
return error.InvalidCharacter;
}
if (index == 14) {
ip_slice[index] = @truncate(u8, x >> 8);
@ -185,10 +162,7 @@ fn parseIp6(buf: []const u8) !Address {
scope_id = true;
saw_any_digits = false;
} else {
const digit = hexDigit(c);
if (digit == @maxValue(u8)) {
return error.InvalidChar;
}
const digit = try std.fmt.charToDigit(c, 16);
if (@mulWithOverflow(u16, x, 16, &x)) {
return error.Overflow;
}
@ -216,42 +190,27 @@ fn parseIp6(buf: []const u8) !Address {
return error.Incomplete;
}
fn parseIp4(buf: []const u8) !u32 {
var result: u32 = undefined;
const out_ptr = ([]u8)((&result)[0..1]);
test "std.net.parseIp4" {
assert((try parseIp4("127.0.0.1")) == std.mem.endianSwapIfLe(u32, 0x7f000001));
var x: u8 = 0;
var index: u8 = 0;
var saw_any_digits = false;
for (buf) |c| {
if (c == '.') {
if (!saw_any_digits) {
return error.InvalidChar;
}
if (index == 3) {
return error.JunkAtEnd;
}
out_ptr[index] = x;
index += 1;
x = 0;
saw_any_digits = false;
} else if (c >= '0' and c <= '9') {
saw_any_digits = true;
const digit = c - '0';
if (@mulWithOverflow(u8, x, 10, &x)) {
return error.Overflow;
}
if (@addWithOverflow(u8, x, digit, &x)) {
return error.Overflow;
}
} else {
return error.InvalidChar;
}
}
if (index == 3 and saw_any_digits) {
out_ptr[index] = x;
return result;
}
return error.Incomplete;
testParseIp4Fail("256.0.0.1", error.Overflow);
testParseIp4Fail("x.0.0.1", error.InvalidCharacter);
testParseIp4Fail("127.0.0.1.1", error.InvalidEnd);
testParseIp4Fail("127.0.0.", error.Incomplete);
testParseIp4Fail("100..0.1", error.InvalidCharacter);
}
fn testParseIp4Fail(buf: []const u8, expected_err: error) void {
if (parseIp4(buf)) |_| {
@panic("expected error");
} else |e| {
assert(e == expected_err);
}
}
test "std.net.parseIp6" {
const addr = try parseIp6("FF01:0:0:0:0:0:0:FB");
assert(addr.addr[0] == 0xff);
assert(addr.addr[1] == 0x01);
assert(addr.addr[2] == 0x00);
}

3
std/os/darwin.zig
View File

@ -301,6 +301,9 @@ pub const timespec = c.timespec;
pub const Stat = c.Stat;
pub const dirent = c.dirent;
pub const sa_family_t = c.sa_family_t;
pub const sockaddr = c.sockaddr;
/// Renamed from `sigaction` to `Sigaction` to avoid conflict with the syscall.
pub const Sigaction = struct {
handler: extern fn(i32)void,

528
std/os/index.zig
View File

@ -4,6 +4,19 @@ const Os = builtin.Os;
const is_windows = builtin.os == Os.windows;
const os = this;
test "std.os" {
_ = @import("child_process.zig");
_ = @import("darwin.zig");
_ = @import("darwin_errno.zig");
_ = @import("get_user_id.zig");
_ = @import("linux/errno.zig");
_ = @import("linux/index.zig");
_ = @import("linux/x86_64.zig");
_ = @import("path.zig");
_ = @import("test.zig");
_ = @import("windows/index.zig");
}
pub const windows = @import("windows/index.zig");
pub const darwin = @import("darwin.zig");
pub const linux = @import("linux/index.zig");
@ -14,6 +27,7 @@ pub const posix = switch(builtin.os) {
Os.zen => zen,
else => @compileError("Unsupported OS"),
};
pub const net = @import("net.zig");
pub const ChildProcess = @import("child_process.zig").ChildProcess;
pub const path = @import("path.zig");
@ -173,6 +187,13 @@ pub fn exit(status: u8) noreturn {
}
}
/// When a file descriptor is closed on linux, it pops the first
/// node from this queue and resumes it.
/// Async functions which get the EMFILE error code can suspend,
/// putting their coroutine handle into this list.
/// TODO make this an atomic linked list
pub var emfile_promise_queue = std.LinkedList(promise).init();
/// Closes the file handle. Keeps trying if it gets interrupted by a signal.
pub fn close(handle: FileHandle) void {
if (is_windows) {
@ -180,10 +201,12 @@ pub fn close(handle: FileHandle) void {
} else {
while (true) {
const err = posix.getErrno(posix.close(handle));
if (err == posix.EINTR) {
continue;
} else {
return;
switch (err) {
posix.EINTR => continue,
else => {
if (emfile_promise_queue.popFirst()) |p| resume p.data;
return;
},
}
}
}
@ -1753,27 +1776,16 @@ fn testWindowsCmdLine(input_cmd_line: &const u8, expected_args: []const []const
assert(it.next(debug.global_allocator) == null);
}
test "std.os" {
_ = @import("child_process.zig");
_ = @import("darwin_errno.zig");
_ = @import("darwin.zig");
_ = @import("get_user_id.zig");
_ = @import("linux/errno.zig");
//_ = @import("linux_i386.zig");
_ = @import("linux/x86_64.zig");
_ = @import("linux/index.zig");
_ = @import("path.zig");
_ = @import("windows/index.zig");
_ = @import("test.zig");
}
// TODO make this a build variable that you can set
const unexpected_error_tracing = false;
const UnexpectedError = error {
/// The Operating System returned an undocumented error code.
Unexpected,
};
/// Call this when you made a syscall or something that sets errno
/// and you get an unexpected error.
pub fn unexpectedErrorPosix(errno: usize) (error{Unexpected}) {
pub fn unexpectedErrorPosix(errno: usize) UnexpectedError {
if (unexpected_error_tracing) {
debug.warn("unexpected errno: {}\n", errno);
debug.dumpCurrentStackTrace(null);
@ -1783,7 +1795,7 @@ pub fn unexpectedErrorPosix(errno: usize) (error{Unexpected}) {
/// Call this when you made a windows DLL call or something that does SetLastError
/// and you get an unexpected error.
pub fn unexpectedErrorWindows(err: windows.DWORD) (error{Unexpected}) {
pub fn unexpectedErrorWindows(err: windows.DWORD) UnexpectedError {
if (unexpected_error_tracing) {
debug.warn("unexpected GetLastError(): {}\n", err);
debug.dumpCurrentStackTrace(null);
@ -1898,3 +1910,477 @@ pub fn isTty(handle: FileHandle) bool {
}
}
}
pub const PosixSocketError = error {
/// Permission to create a socket of the specified type and/or
/// pro‐tocol is denied.
PermissionDenied,
/// The implementation does not support the specified address family.
AddressFamilyNotSupported,
/// Unknown protocol, or protocol family not available.
ProtocolFamilyNotAvailable,
/// The per-process limit on the number of open file descriptors has been reached.
ProcessFdQuotaExceeded,
/// The system-wide limit on the total number of open files has been reached.
SystemFdQuotaExceeded,
/// Insufficient memory is available. The socket cannot be created until sufficient
/// resources are freed.
SystemResources,
/// The protocol type or the specified protocol is not supported within this domain.
ProtocolNotSupported,
};
pub fn posixSocket(domain: u32, socket_type: u32, protocol: u32) !i32 {
const rc = posix.socket(domain, socket_type, protocol);
const err = posix.getErrno(rc);
switch (err) {
0 => return i32(rc),
posix.EACCES => return PosixSocketError.PermissionDenied,
posix.EAFNOSUPPORT => return PosixSocketError.AddressFamilyNotSupported,
posix.EINVAL => return PosixSocketError.ProtocolFamilyNotAvailable,
posix.EMFILE => return PosixSocketError.ProcessFdQuotaExceeded,
posix.ENFILE => return PosixSocketError.SystemFdQuotaExceeded,
posix.ENOBUFS, posix.ENOMEM => return PosixSocketError.SystemResources,
posix.EPROTONOSUPPORT => return PosixSocketError.ProtocolNotSupported,
else => return unexpectedErrorPosix(err),
}
}
pub const PosixBindError = error {
/// The address is protected, and the user is not the superuser.
/// For UNIX domain sockets: Search permission is denied on a component
/// of the path prefix.
AccessDenied,
/// The given address is already in use, or in the case of Internet domain sockets,
/// The port number was specified as zero in the socket
/// address structure, but, upon attempting to bind to an ephemeral port, it was
/// determined that all port numbers in the ephemeral port range are currently in
/// use. See the discussion of /proc/sys/net/ipv4/ip_local_port_range ip(7).
AddressInUse,
/// sockfd is not a valid file descriptor.
InvalidFileDescriptor,
/// The socket is already bound to an address, or addrlen is wrong, or addr is not
/// a valid address for this socket's domain.
InvalidSocketOrAddress,
/// The file descriptor sockfd does not refer to a socket.
FileDescriptorNotASocket,
/// A nonexistent interface was requested or the requested address was not local.
AddressNotAvailable,
/// addr points outside the user's accessible address space.
PageFault,
/// Too many symbolic links were encountered in resolving addr.
SymLinkLoop,
/// addr is too long.
NameTooLong,
/// A component in the directory prefix of the socket pathname does not exist.
FileNotFound,
/// Insufficient kernel memory was available.
SystemResources,
/// A component of the path prefix is not a directory.
NotDir,
/// The socket inode would reside on a read-only filesystem.
ReadOnlyFileSystem,
Unexpected,
};
/// addr is `&const T` where T is one of the sockaddr
pub fn posixBind(fd: i32, addr: &const posix.sockaddr) PosixBindError!void {
const rc = posix.bind(fd, addr, @sizeOf(posix.sockaddr));
const err = posix.getErrno(rc);
switch (err) {
0 => return,
posix.EACCES => return PosixBindError.AccessDenied,
posix.EADDRINUSE => return PosixBindError.AddressInUse,
posix.EBADF => return PosixBindError.InvalidFileDescriptor,
posix.EINVAL => return PosixBindError.InvalidSocketOrAddress,
posix.ENOTSOCK => return PosixBindError.FileDescriptorNotASocket,
posix.EADDRNOTAVAIL => return PosixBindError.AddressNotAvailable,
posix.EFAULT => return PosixBindError.PageFault,
posix.ELOOP => return PosixBindError.SymLinkLoop,
posix.ENAMETOOLONG => return PosixBindError.NameTooLong,
posix.ENOENT => return PosixBindError.FileNotFound,
posix.ENOMEM => return PosixBindError.SystemResources,
posix.ENOTDIR => return PosixBindError.NotDir,
posix.EROFS => return PosixBindError.ReadOnlyFileSystem,
else => return unexpectedErrorPosix(err),
}
}
const PosixListenError = error {
/// Another socket is already listening on the same port.
/// For Internet domain sockets, the socket referred to by sockfd had not previously
/// been bound to an address and, upon attempting to bind it to an ephemeral port, it
/// was determined that all port numbers in the ephemeral port range are currently in
/// use. See the discussion of /proc/sys/net/ipv4/ip_local_port_range in ip(7).
AddressInUse,
/// The argument sockfd is not a valid file descriptor.
InvalidFileDescriptor,
/// The file descriptor sockfd does not refer to a socket.
FileDescriptorNotASocket,
/// The socket is not of a type that supports the listen() operation.
OperationNotSupported,
Unexpected,
};
pub fn posixListen(sockfd: i32, backlog: u32) PosixListenError!void {
const rc = posix.listen(sockfd, backlog);
const err = posix.getErrno(rc);
switch (err) {
0 => return,
posix.EADDRINUSE => return PosixListenError.AddressInUse,
posix.EBADF => return PosixListenError.InvalidFileDescriptor,
posix.ENOTSOCK => return PosixListenError.FileDescriptorNotASocket,
posix.EOPNOTSUPP => return PosixListenError.OperationNotSupported,
else => return unexpectedErrorPosix(err),
}
}
pub const PosixAcceptError = error {
/// The socket is marked nonblocking and no connections are present to be accepted.
WouldBlock,
/// sockfd is not an open file descriptor.
FileDescriptorClosed,
ConnectionAborted,
/// The addr argument is not in a writable part of the user address space.
PageFault,
/// Socket is not listening for connections, or addrlen is invalid (e.g., is negative),
/// or invalid value in flags.
InvalidSyscall,
/// The per-process limit on the number of open file descriptors has been reached.
ProcessFdQuotaExceeded,
/// The system-wide limit on the total number of open files has been reached.
SystemFdQuotaExceeded,
/// Not enough free memory. This often means that the memory allocation is limited
/// by the socket buffer limits, not by the system memory.
SystemResources,
/// The file descriptor sockfd does not refer to a socket.
FileDescriptorNotASocket,
/// The referenced socket is not of type SOCK_STREAM.
OperationNotSupported,
ProtocolFailure,
/// Firewall rules forbid connection.
BlockedByFirewall,
Unexpected,
};
pub fn posixAccept(fd: i32, addr: &posix.sockaddr, flags: u32) PosixAcceptError!i32 {
while (true) {
var sockaddr_size = u32(@sizeOf(posix.sockaddr));
const rc = posix.accept4(fd, addr, &sockaddr_size, flags);
const err = posix.getErrno(rc);
switch (err) {
0 => return i32(rc),
posix.EINTR => continue,
else => return unexpectedErrorPosix(err),
posix.EAGAIN => return PosixAcceptError.WouldBlock,
posix.EBADF => return PosixAcceptError.FileDescriptorClosed,
posix.ECONNABORTED => return PosixAcceptError.ConnectionAborted,
posix.EFAULT => return PosixAcceptError.PageFault,
posix.EINVAL => return PosixAcceptError.InvalidSyscall,
posix.EMFILE => return PosixAcceptError.ProcessFdQuotaExceeded,
posix.ENFILE => return PosixAcceptError.SystemFdQuotaExceeded,
posix.ENOBUFS, posix.ENOMEM => return PosixAcceptError.SystemResources,
posix.ENOTSOCK => return PosixAcceptError.FileDescriptorNotASocket,
posix.EOPNOTSUPP => return PosixAcceptError.OperationNotSupported,
posix.EPROTO => return PosixAcceptError.ProtocolFailure,
posix.EPERM => return PosixAcceptError.BlockedByFirewall,
}
}
}
pub const LinuxEpollCreateError = error {
/// Invalid value specified in flags.
InvalidSyscall,
/// The per-user limit on the number of epoll instances imposed by
/// /proc/sys/fs/epoll/max_user_instances was encountered. See epoll(7) for further
/// details.
/// Or, The per-process limit on the number of open file descriptors has been reached.
ProcessFdQuotaExceeded,
/// The system-wide limit on the total number of open files has been reached.
SystemFdQuotaExceeded,
/// There was insufficient memory to create the kernel object.
SystemResources,
Unexpected,
};
pub fn linuxEpollCreate(flags: u32) LinuxEpollCreateError!i32 {
const rc = posix.epoll_create1(flags);
const err = posix.getErrno(rc);
switch (err) {
0 => return i32(rc),
else => return unexpectedErrorPosix(err),
posix.EINVAL => return LinuxEpollCreateError.InvalidSyscall,
posix.EMFILE => return LinuxEpollCreateError.ProcessFdQuotaExceeded,
posix.ENFILE => return LinuxEpollCreateError.SystemFdQuotaExceeded,
posix.ENOMEM => return LinuxEpollCreateError.SystemResources,
}
}
pub const LinuxEpollCtlError = error {
/// epfd or fd is not a valid file descriptor.
InvalidFileDescriptor,
/// op was EPOLL_CTL_ADD, and the supplied file descriptor fd is already registered
/// with this epoll instance.
FileDescriptorAlreadyPresentInSet,
/// epfd is not an epoll file descriptor, or fd is the same as epfd, or the requested
/// operation op is not supported by this interface, or
/// An invalid event type was specified along with EPOLLEXCLUSIVE in events, or
/// op was EPOLL_CTL_MOD and events included EPOLLEXCLUSIVE, or
/// op was EPOLL_CTL_MOD and the EPOLLEXCLUSIVE flag has previously been applied to
/// this epfd, fd pair, or
/// EPOLLEXCLUSIVE was specified in event and fd refers to an epoll instance.
InvalidSyscall,
/// fd refers to an epoll instance and this EPOLL_CTL_ADD operation would result in a
/// circular loop of epoll instances monitoring one another.
OperationCausesCircularLoop,
/// op was EPOLL_CTL_MOD or EPOLL_CTL_DEL, and fd is not registered with this epoll
/// instance.
FileDescriptorNotRegistered,
/// There was insufficient memory to handle the requested op control operation.
SystemResources,
/// The limit imposed by /proc/sys/fs/epoll/max_user_watches was encountered while
/// trying to register (EPOLL_CTL_ADD) a new file descriptor on an epoll instance.
/// See epoll(7) for further details.
UserResourceLimitReached,
/// The target file fd does not support epoll. This error can occur if fd refers to,
/// for example, a regular file or a directory.
FileDescriptorIncompatibleWithEpoll,
Unexpected,
};
pub fn linuxEpollCtl(epfd: i32, op: u32, fd: i32, event: &linux.epoll_event) LinuxEpollCtlError!void {
const rc = posix.epoll_ctl(epfd, op, fd, event);
const err = posix.getErrno(rc);
switch (err) {
0 => return,
else => return unexpectedErrorPosix(err),
posix.EBADF => return LinuxEpollCtlError.InvalidFileDescriptor,
posix.EEXIST => return LinuxEpollCtlError.FileDescriptorAlreadyPresentInSet,
posix.EINVAL => return LinuxEpollCtlError.InvalidSyscall,
posix.ELOOP => return LinuxEpollCtlError.OperationCausesCircularLoop,
posix.ENOENT => return LinuxEpollCtlError.FileDescriptorNotRegistered,
posix.ENOMEM => return LinuxEpollCtlError.SystemResources,
posix.ENOSPC => return LinuxEpollCtlError.UserResourceLimitReached,
posix.EPERM => return LinuxEpollCtlError.FileDescriptorIncompatibleWithEpoll,
}
}
pub fn linuxEpollWait(epfd: i32, events: []linux.epoll_event, timeout: i32) usize {
while (true) {
const rc = posix.epoll_wait(epfd, events.ptr, u32(events.len), timeout);
const err = posix.getErrno(rc);
switch (err) {
0 => return rc,
posix.EINTR => continue,
posix.EBADF => unreachable,
posix.EFAULT => unreachable,
posix.EINVAL => unreachable,
else => unreachable,
}
}
}
pub const PosixGetSockNameError = error {
/// Insufficient resources were available in the system to perform the operation.
SystemResources,
Unexpected,
};
pub fn posixGetSockName(sockfd: i32) PosixGetSockNameError!posix.sockaddr {
var addr: posix.sockaddr = undefined;
var addrlen: posix.socklen_t = @sizeOf(posix.sockaddr);
const rc = posix.getsockname(sockfd, &addr, &addrlen);
const err = posix.getErrno(rc);
switch (err) {
0 => return addr,
else => return unexpectedErrorPosix(err),
posix.EBADF => unreachable,
posix.EFAULT => unreachable,
posix.EINVAL => unreachable,
posix.ENOTSOCK => unreachable,
posix.ENOBUFS => return PosixGetSockNameError.SystemResources,
}
}
pub const PosixConnectError = error {
/// For UNIX domain sockets, which are identified by pathname: Write permission is denied on the socket
/// file, or search permission is denied for one of the directories in the path prefix.
/// or
/// The user tried to connect to a broadcast address without having the socket broadcast flag enabled or
/// the connection request failed because of a local firewall rule.
PermissionDenied,
/// Local address is already in use.
AddressInUse,
/// (Internet domain sockets) The socket referred to by sockfd had not previously been bound to an
/// address and, upon attempting to bind it to an ephemeral port, it was determined that all port numbers
/// in the ephemeral port range are currently in use. See the discussion of
/// /proc/sys/net/ipv4/ip_local_port_range in ip(7).
AddressNotAvailable,
/// The passed address didn't have the correct address family in its sa_family field.
AddressFamilyNotSupported,
/// Insufficient entries in the routing cache.
SystemResources,
/// A connect() on a stream socket found no one listening on the remote address.
ConnectionRefused,
/// Network is unreachable.
NetworkUnreachable,
/// Timeout while attempting connection. The server may be too busy to accept new connections. Note
/// that for IP sockets the timeout may be very long when syncookies are enabled on the server.
ConnectionTimedOut,
Unexpected,
};
pub fn posixConnect(sockfd: i32, sockaddr: &const posix.sockaddr) PosixConnectError!void {
while (true) {
const rc = posix.connect(sockfd, sockaddr, @sizeOf(posix.sockaddr));
const err = posix.getErrno(rc);
switch (err) {
0 => return,
else => return unexpectedErrorPosix(err),
posix.EACCES => return PosixConnectError.PermissionDenied,
posix.EPERM => return PosixConnectError.PermissionDenied,
posix.EADDRINUSE => return PosixConnectError.AddressInUse,
posix.EADDRNOTAVAIL => return PosixConnectError.AddressNotAvailable,
posix.EAFNOSUPPORT => return PosixConnectError.AddressFamilyNotSupported,
posix.EAGAIN => return PosixConnectError.SystemResources,
posix.EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
posix.EBADF => unreachable, // sockfd is not a valid open file descriptor.
posix.ECONNREFUSED => return PosixConnectError.ConnectionRefused,
posix.EFAULT => unreachable, // The socket structure address is outside the user's address space.
posix.EINPROGRESS => unreachable, // The socket is nonblocking and the connection cannot be completed immediately.
posix.EINTR => continue,
posix.EISCONN => unreachable, // The socket is already connected.
posix.ENETUNREACH => return PosixConnectError.NetworkUnreachable,
posix.ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
posix.EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
posix.ETIMEDOUT => return PosixConnectError.ConnectionTimedOut,
}
}
}
/// Same as posixConnect except it is for blocking socket file descriptors.
/// It expects to receive EINPROGRESS.
pub fn posixConnectAsync(sockfd: i32, sockaddr: &const posix.sockaddr) PosixConnectError!void {
while (true) {
const rc = posix.connect(sockfd, sockaddr, @sizeOf(posix.sockaddr));
const err = posix.getErrno(rc);
switch (err) {
0, posix.EINPROGRESS => return,
else => return unexpectedErrorPosix(err),
posix.EACCES => return PosixConnectError.PermissionDenied,
posix.EPERM => return PosixConnectError.PermissionDenied,
posix.EADDRINUSE => return PosixConnectError.AddressInUse,
posix.EADDRNOTAVAIL => return PosixConnectError.AddressNotAvailable,
posix.EAFNOSUPPORT => return PosixConnectError.AddressFamilyNotSupported,
posix.EAGAIN => return PosixConnectError.SystemResources,
posix.EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
posix.EBADF => unreachable, // sockfd is not a valid open file descriptor.
posix.ECONNREFUSED => return PosixConnectError.ConnectionRefused,
posix.EFAULT => unreachable, // The socket structure address is outside the user's address space.
posix.EINTR => continue,
posix.EISCONN => unreachable, // The socket is already connected.
posix.ENETUNREACH => return PosixConnectError.NetworkUnreachable,
posix.ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
posix.EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
posix.ETIMEDOUT => return PosixConnectError.ConnectionTimedOut,
}
}
}
pub fn posixGetSockOptConnectError(sockfd: i32) PosixConnectError!void {
var err_code: i32 = undefined;
var size: u32 = @sizeOf(i32);
const rc = posix.getsockopt(sockfd, posix.SOL_SOCKET, posix.SO_ERROR, @ptrCast(&u8, &err_code), &size);
assert(size == 4);
const err = posix.getErrno(rc);
switch (err) {
0 => switch (err_code) {
0 => return,
else => return unexpectedErrorPosix(err),
posix.EACCES => return PosixConnectError.PermissionDenied,
posix.EPERM => return PosixConnectError.PermissionDenied,
posix.EADDRINUSE => return PosixConnectError.AddressInUse,
posix.EADDRNOTAVAIL => return PosixConnectError.AddressNotAvailable,
posix.EAFNOSUPPORT => return PosixConnectError.AddressFamilyNotSupported,
posix.EAGAIN => return PosixConnectError.SystemResources,
posix.EALREADY => unreachable, // The socket is nonblocking and a previous connection attempt has not yet been completed.
posix.EBADF => unreachable, // sockfd is not a valid open file descriptor.
posix.ECONNREFUSED => return PosixConnectError.ConnectionRefused,
posix.EFAULT => unreachable, // The socket structure address is outside the user's address space.
posix.EISCONN => unreachable, // The socket is already connected.
posix.ENETUNREACH => return PosixConnectError.NetworkUnreachable,
posix.ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
posix.EPROTOTYPE => unreachable, // The socket type does not support the requested communications protocol.
posix.ETIMEDOUT => return PosixConnectError.ConnectionTimedOut,
},
else => return unexpectedErrorPosix(err),
posix.EBADF => unreachable, // The argument sockfd is not a valid file descriptor.
posix.EFAULT => unreachable, // The address pointed to by optval or optlen is not in a valid part of the process address space.
posix.EINVAL => unreachable,
posix.ENOPROTOOPT => unreachable, // The option is unknown at the level indicated.
posix.ENOTSOCK => unreachable, // The file descriptor sockfd does not refer to a socket.
}
}

505
std/os/linux/i386.zig
View File

@ -1,505 +0,0 @@
const std = @import("../../index.zig");
const linux = std.os.linux;
const socklen_t = linux.socklen_t;
const iovec = linux.iovec;
pub const SYS_restart_syscall = 0;
pub const SYS_exit = 1;
pub const SYS_fork = 2;
pub const SYS_read = 3;
pub const SYS_write = 4;
pub const SYS_open = 5;
pub const SYS_close = 6;
pub const SYS_waitpid = 7;
pub const SYS_creat = 8;
pub const SYS_link = 9;
pub const SYS_unlink = 10;
pub const SYS_execve = 11;
pub const SYS_chdir = 12;
pub const SYS_time = 13;
pub const SYS_mknod = 14;
pub const SYS_chmod = 15;
pub const SYS_lchown = 16;
pub const SYS_break = 17;
pub const SYS_oldstat = 18;
pub const SYS_lseek = 19;
pub const SYS_getpid = 20;
pub const SYS_mount = 21;
pub const SYS_umount = 22;
pub const SYS_setuid = 23;
pub const SYS_getuid = 24;
pub const SYS_stime = 25;
pub const SYS_ptrace = 26;
pub const SYS_alarm = 27;
pub const SYS_oldfstat = 28;
pub const SYS_pause = 29;
pub const SYS_utime = 30;
pub const SYS_stty = 31;
pub const SYS_gtty = 32;
pub const SYS_access = 33;
pub const SYS_nice = 34;
pub const SYS_ftime = 35;
pub const SYS_sync = 36;
pub const SYS_kill = 37;
pub const SYS_rename = 38;
pub const SYS_mkdir = 39;
pub const SYS_rmdir = 40;
pub const SYS_dup = 41;
pub const SYS_pipe = 42;
pub const SYS_times = 43;
pub const SYS_prof = 44;
pub const SYS_brk = 45;
pub const SYS_setgid = 46;
pub const SYS_getgid = 47;
pub const SYS_signal = 48;
pub const SYS_geteuid = 49;
pub const SYS_getegid = 50;
pub const SYS_acct = 51;
pub const SYS_umount2 = 52;
pub const SYS_lock = 53;
pub const SYS_ioctl = 54;
pub const SYS_fcntl = 55;
pub const SYS_mpx = 56;
pub const SYS_setpgid = 57;
pub const SYS_ulimit = 58;
pub const SYS_oldolduname = 59;
pub const SYS_umask = 60;
pub const SYS_chroot = 61;
pub const SYS_ustat = 62;
pub const SYS_dup2 = 63;
pub const SYS_getppid = 64;
pub const SYS_getpgrp = 65;
pub const SYS_setsid = 66;
pub const SYS_sigaction = 67;
pub const SYS_sgetmask = 68;
pub const SYS_ssetmask = 69;
pub const SYS_setreuid = 70;
pub const SYS_setregid = 71;
pub const SYS_sigsuspend = 72;
pub const SYS_sigpending = 73;
pub const SYS_sethostname = 74;
pub const SYS_setrlimit = 75;
pub const SYS_getrlimit = 76;
pub const SYS_getrusage = 77;
pub const SYS_gettimeofday = 78;
pub const SYS_settimeofday = 79;
pub const SYS_getgroups = 80;
pub const SYS_setgroups = 81;
pub const SYS_select = 82;
pub const SYS_symlink = 83;
pub const SYS_oldlstat = 84;
pub const SYS_readlink = 85;
pub const SYS_uselib = 86;
pub const SYS_swapon = 87;
pub const SYS_reboot = 88;
pub const SYS_readdir = 89;
pub const SYS_mmap = 90;
pub const SYS_munmap = 91;
pub const SYS_truncate = 92;
pub const SYS_ftruncate = 93;
pub const SYS_fchmod = 94;
pub const SYS_fchown = 95;
pub const SYS_getpriority = 96;
pub const SYS_setpriority = 97;
pub const SYS_profil = 98;
pub const SYS_statfs = 99;
pub const SYS_fstatfs = 100;
pub const SYS_ioperm = 101;
pub const SYS_socketcall = 102;
pub const SYS_syslog = 103;
pub const SYS_setitimer = 104;
pub const SYS_getitimer = 105;
pub const SYS_stat = 106;
pub const SYS_lstat = 107;
pub const SYS_fstat = 108;
pub const SYS_olduname = 109;
pub const SYS_iopl = 110;
pub const SYS_vhangup = 111;
pub const SYS_idle = 112;
pub const SYS_vm86old = 113;
pub const SYS_wait4 = 114;
pub const SYS_swapoff = 115;
pub const SYS_sysinfo = 116;
pub const SYS_ipc = 117;
pub const SYS_fsync = 118;
pub const SYS_sigreturn = 119;
pub const SYS_clone = 120;
pub const SYS_setdomainname = 121;
pub const SYS_uname = 122;
pub const SYS_modify_ldt = 123;
pub const SYS_adjtimex = 124;
pub const SYS_mprotect = 125;
pub const SYS_sigprocmask = 126;
pub const SYS_create_module = 127;
pub const SYS_init_module = 128;
pub const SYS_delete_module = 129;
pub const SYS_get_kernel_syms = 130;
pub const SYS_quotactl = 131;
pub const SYS_getpgid = 132;
pub const SYS_fchdir = 133;
pub const SYS_bdflush = 134;
pub const SYS_sysfs = 135;
pub const SYS_personality = 136;
pub const SYS_afs_syscall = 137;
pub const SYS_setfsuid = 138;
pub const SYS_setfsgid = 139;
pub const SYS__llseek = 140;
pub const SYS_getdents = 141;
pub const SYS__newselect = 142;
pub const SYS_flock = 143;
pub const SYS_msync = 144;
pub const SYS_readv = 145;
pub const SYS_writev = 146;
pub const SYS_getsid = 147;
pub const SYS_fdatasync = 148;
pub const SYS__sysctl = 149;
pub const SYS_mlock = 150;
pub const SYS_munlock = 151;
pub const SYS_mlockall = 152;
pub const SYS_munlockall = 153;
pub const SYS_sched_setparam = 154;
pub const SYS_sched_getparam = 155;
pub const SYS_sched_setscheduler = 156;
pub const SYS_sched_getscheduler = 157;
pub const SYS_sched_yield = 158;
pub const SYS_sched_get_priority_max = 159;
pub const SYS_sched_get_priority_min = 160;
pub const SYS_sched_rr_get_interval = 161;
pub const SYS_nanosleep = 162;
pub const SYS_mremap = 163;
pub const SYS_setresuid = 164;
pub const SYS_getresuid = 165;
pub const SYS_vm86 = 166;
pub const SYS_query_module = 167;
pub const SYS_poll = 168;
pub const SYS_nfsservctl = 169;
pub const SYS_setresgid = 170;
pub const SYS_getresgid = 171;
pub const SYS_prctl = 172;
pub const SYS_rt_sigreturn = 173;
pub const SYS_rt_sigaction = 174;
pub const SYS_rt_sigprocmask = 175;
pub const SYS_rt_sigpending = 176;
pub const SYS_rt_sigtimedwait = 177;
pub const SYS_rt_sigqueueinfo = 178;
pub const SYS_rt_sigsuspend = 179;
pub const SYS_pread64 = 180;
pub const SYS_pwrite64 = 181;
pub const SYS_chown = 182;
pub const SYS_getcwd = 183;
pub const SYS_capget = 184;
pub const SYS_capset = 185;
pub const SYS_sigaltstack = 186;
pub const SYS_sendfile = 187;
pub const SYS_getpmsg = 188;
pub const SYS_putpmsg = 189;
pub const SYS_vfork = 190;
pub const SYS_ugetrlimit = 191;
pub const SYS_mmap2 = 192;
pub const SYS_truncate64 = 193;
pub const SYS_ftruncate64 = 194;
pub const SYS_stat64 = 195;
pub const SYS_lstat64 = 196;
pub const SYS_fstat64 = 197;
pub const SYS_lchown32 = 198;
pub const SYS_getuid32 = 199;
pub const SYS_getgid32 = 200;
pub const SYS_geteuid32 = 201;
pub const SYS_getegid32 = 202;
pub const SYS_setreuid32 = 203;
pub const SYS_setregid32 = 204;
pub const SYS_getgroups32 = 205;
pub const SYS_setgroups32 = 206;
pub const SYS_fchown32 = 207;
pub const SYS_setresuid32 = 208;
pub const SYS_getresuid32 = 209;
pub const SYS_setresgid32 = 210;
pub const SYS_getresgid32 = 211;
pub const SYS_chown32 = 212;
pub const SYS_setuid32 = 213;
pub const SYS_setgid32 = 214;
pub const SYS_setfsuid32 = 215;
pub const SYS_setfsgid32 = 216;
pub const SYS_pivot_root = 217;
pub const SYS_mincore = 218;
pub const SYS_madvise = 219;
pub const SYS_madvise1 = 219;
pub const SYS_getdents64 = 220;
pub const SYS_fcntl64 = 221;
pub const SYS_gettid = 224;
pub const SYS_readahead = 225;
pub const SYS_setxattr = 226;
pub const SYS_lsetxattr = 227;
pub const SYS_fsetxattr = 228;
pub const SYS_getxattr = 229;
pub const SYS_lgetxattr = 230;
pub const SYS_fgetxattr = 231;
pub const SYS_listxattr = 232;
pub const SYS_llistxattr = 233;
pub const SYS_flistxattr = 234;
pub const SYS_removexattr = 235;
pub const SYS_lremovexattr = 236;
pub const SYS_fremovexattr = 237;
pub const SYS_tkill = 238;
pub const SYS_sendfile64 = 239;
pub const SYS_futex = 240;
pub const SYS_sched_setaffinity = 241;
pub const SYS_sched_getaffinity = 242;
pub const SYS_set_thread_area = 243;
pub const SYS_get_thread_area = 244;
pub const SYS_io_setup = 245;
pub const SYS_io_destroy = 246;
pub const SYS_io_getevents = 247;
pub const SYS_io_submit = 248;
pub const SYS_io_cancel = 249;
pub const SYS_fadvise64 = 250;
pub const SYS_exit_group = 252;
pub const SYS_lookup_dcookie = 253;
pub const SYS_epoll_create = 254;
pub const SYS_epoll_ctl = 255;
pub const SYS_epoll_wait = 256;
pub const SYS_remap_file_pages = 257;
pub const SYS_set_tid_address = 258;
pub const SYS_timer_create = 259;
pub const SYS_timer_settime = SYS_timer_create+1;
pub const SYS_timer_gettime = SYS_timer_create+2;
pub const SYS_timer_getoverrun = SYS_timer_create+3;
pub const SYS_timer_delete = SYS_timer_create+4;
pub const SYS_clock_settime = SYS_timer_create+5;
pub const SYS_clock_gettime = SYS_timer_create+6;
pub const SYS_clock_getres = SYS_timer_create+7;
pub const SYS_clock_nanosleep = SYS_timer_create+8;
pub const SYS_statfs64 = 268;
pub const SYS_fstatfs64 = 269;
pub const SYS_tgkill = 270;
pub const SYS_utimes = 271;
pub const SYS_fadvise64_64 = 272;
pub const SYS_vserver = 273;
pub const SYS_mbind = 274;
pub const SYS_get_mempolicy = 275;
pub const SYS_set_mempolicy = 276;
pub const SYS_mq_open = 277;
pub const SYS_mq_unlink = SYS_mq_open+1;
pub const SYS_mq_timedsend = SYS_mq_open+2;
pub const SYS_mq_timedreceive = SYS_mq_open+3;
pub const SYS_mq_notify = SYS_mq_open+4;
pub const SYS_mq_getsetattr = SYS_mq_open+5;
pub const SYS_kexec_load = 283;
pub const SYS_waitid = 284;
pub const SYS_add_key = 286;
pub const SYS_request_key = 287;
pub const SYS_keyctl = 288;
pub const SYS_ioprio_set = 289;
pub const SYS_ioprio_get = 290;
pub const SYS_inotify_init = 291;
pub const SYS_inotify_add_watch = 292;
pub const SYS_inotify_rm_watch = 293;
pub const SYS_migrate_pages = 294;
pub const SYS_openat = 295;
pub const SYS_mkdirat = 296;
pub const SYS_mknodat = 297;
pub const SYS_fchownat = 298;
pub const SYS_futimesat = 299;
pub const SYS_fstatat64 = 300;
pub const SYS_unlinkat = 301;
pub const SYS_renameat = 302;
pub const SYS_linkat = 303;
pub const SYS_symlinkat = 304;
pub const SYS_readlinkat = 305;
pub const SYS_fchmodat = 306;
pub const SYS_faccessat = 307;
pub const SYS_pselect6 = 308;
pub const SYS_ppoll = 309;
pub const SYS_unshare = 310;
pub const SYS_set_robust_list = 311;
pub const SYS_get_robust_list = 312;
pub const SYS_splice = 313;
pub const SYS_sync_file_range = 314;
pub const SYS_tee = 315;
pub const SYS_vmsplice = 316;
pub const SYS_move_pages = 317;
pub const SYS_getcpu = 318;
pub const SYS_epoll_pwait = 319;
pub const SYS_utimensat = 320;
pub const SYS_signalfd = 321;
pub const SYS_timerfd_create = 322;
pub const SYS_eventfd = 323;
pub const SYS_fallocate = 324;
pub const SYS_timerfd_settime = 325;
pub const SYS_timerfd_gettime = 326;
pub const SYS_signalfd4 = 327;
pub const SYS_eventfd2 = 328;
pub const SYS_epoll_create1 = 329;
pub const SYS_dup3 = 330;
pub const SYS_pipe2 = 331;
pub const SYS_inotify_init1 = 332;
pub const SYS_preadv = 333;
pub const SYS_pwritev = 334;
pub const SYS_rt_tgsigqueueinfo = 335;
pub const SYS_perf_event_open = 336;
pub const SYS_recvmmsg = 337;
pub const SYS_fanotify_init = 338;
pub const SYS_fanotify_mark = 339;
pub const SYS_prlimit64 = 340;
pub const SYS_name_to_handle_at = 341;
pub const SYS_open_by_handle_at = 342;
pub const SYS_clock_adjtime = 343;
pub const SYS_syncfs = 344;
pub const SYS_sendmmsg = 345;
pub const SYS_setns = 346;
pub const SYS_process_vm_readv = 347;
pub const SYS_process_vm_writev = 348;
pub const SYS_kcmp = 349;
pub const SYS_finit_module = 350;
pub const SYS_sched_setattr = 351;
pub const SYS_sched_getattr = 352;
pub const SYS_renameat2 = 353;
pub const SYS_seccomp = 354;
pub const SYS_getrandom = 355;
pub const SYS_memfd_create = 356;
pub const SYS_bpf = 357;
pub const SYS_execveat = 358;
pub const SYS_socket = 359;
pub const SYS_socketpair = 360;
pub const SYS_bind = 361;
pub const SYS_connect = 362;
pub const SYS_listen = 363;
pub const SYS_accept4 = 364;
pub const SYS_getsockopt = 365;
pub const SYS_setsockopt = 366;
pub const SYS_getsockname = 367;
pub const SYS_getpeername = 368;
pub const SYS_sendto = 369;
pub const SYS_sendmsg = 370;
pub const SYS_recvfrom = 371;
pub const SYS_recvmsg = 372;
pub const SYS_shutdown = 373;
pub const SYS_userfaultfd = 374;
pub const SYS_membarrier = 375;
pub const SYS_mlock2 = 376;
pub const O_CREAT = 0o100;
pub const O_EXCL = 0o200;
pub const O_NOCTTY = 0o400;
pub const O_TRUNC = 0o1000;
pub const O_APPEND = 0o2000;
pub const O_NONBLOCK = 0o4000;
pub const O_DSYNC = 0o10000;
pub const O_SYNC = 0o4010000;
pub const O_RSYNC = 0o4010000;
pub const O_DIRECTORY = 0o200000;
pub const O_NOFOLLOW = 0o400000;
pub const O_CLOEXEC = 0o2000000;
pub const O_ASYNC = 0o20000;
pub const O_DIRECT = 0o40000;
pub const O_LARGEFILE = 0o100000;
pub const O_NOATIME = 0o1000000;
pub const O_PATH = 0o10000000;
pub const O_TMPFILE = 0o20200000;
pub const O_NDELAY = O_NONBLOCK;
pub const F_DUPFD = 0;
pub const F_GETFD = 1;
pub const F_SETFD = 2;
pub const F_GETFL = 3;
pub const F_SETFL = 4;
pub const F_SETOWN = 8;
pub const F_GETOWN = 9;
pub const F_SETSIG = 10;
pub const F_GETSIG = 11;
pub const F_GETLK = 12;
pub const F_SETLK = 13;
pub const F_SETLKW = 14;
pub const F_SETOWN_EX = 15;
pub const F_GETOWN_EX = 16;
pub const F_GETOWNER_UIDS = 17;
pub inline fn syscall0(number: usize) usize {
return asm volatile ("int $0x80"
: [ret] "={eax}" (-> usize)
: [number] "{eax}" (number));
}
pub inline fn syscall1(number: usize, arg1: usize) usize {
return asm volatile ("int $0x80"
: [ret] "={eax}" (-> usize)
: [number] "{eax}" (number),
[arg1] "{ebx}" (arg1));
}
pub inline fn syscall2(number: usize, arg1: usize, arg2: usize) usize {
return asm volatile ("int $0x80"
: [ret] "={eax}" (-> usize)
: [number] "{eax}" (number),
[arg1] "{ebx}" (arg1),
[arg2] "{ecx}" (arg2));
}
pub inline fn syscall3(number: usize, arg1: usize, arg2: usize, arg3: usize) usize {
return asm volatile ("int $0x80"
: [ret] "={eax}" (-> usize)
: [number] "{eax}" (number),
[arg1] "{ebx}" (arg1),
[arg2] "{ecx}" (arg2),
[arg3] "{edx}" (arg3));
}
pub inline fn syscall4(number: usize, arg1: usize, arg2: usize, arg3: usize, arg4: usize) usize {
return asm volatile ("int $0x80"
: [ret] "={eax}" (-> usize)
: [number] "{eax}" (number),
[arg1] "{ebx}" (arg1),
[arg2] "{ecx}" (arg2),
[arg3] "{edx}" (arg3),
[arg4] "{esi}" (arg4));
}
pub inline fn syscall5(number: usize, arg1: usize, arg2: usize, arg3: usize,
arg4: usize, arg5: usize) usize
{
return asm volatile ("int $0x80"
: [ret] "={eax}" (-> usize)
: [number] "{eax}" (number),
[arg1] "{ebx}" (arg1),
[arg2] "{ecx}" (arg2),
[arg3] "{edx}" (arg3),
[arg4] "{esi}" (arg4),
[arg5] "{edi}" (arg5));
}
pub inline fn syscall6(number: usize, arg1: usize, arg2: usize, arg3: usize,
arg4: usize, arg5: usize, arg6: usize) usize
{
return asm volatile ("int $0x80"
: [ret] "={eax}" (-> usize)
: [number] "{eax}" (number),
[arg1] "{ebx}" (arg1),
[arg2] "{ecx}" (arg2),
[arg3] "{edx}" (arg3),
[arg4] "{esi}" (arg4),
[arg5] "{edi}" (arg5),
[arg6] "{ebp}" (arg6));
}
pub nakedcc fn restore() void {
asm volatile (
\\popl %%eax
\\movl $119, %%eax
\\int $0x80
:
:
: "rcx", "r11");
}
pub nakedcc fn restore_rt() void {
asm volatile ("int $0x80"
:
: [number] "{eax}" (usize(SYS_rt_sigreturn))
: "rcx", "r11");
}

600
std/os/linux/index.zig
View File

@ -101,17 +101,6 @@ pub const SIG_BLOCK = 0;
pub const SIG_UNBLOCK = 1;
pub const SIG_SETMASK = 2;
pub const SOCK_STREAM = 1;
pub const SOCK_DGRAM = 2;
pub const SOCK_RAW = 3;
pub const SOCK_RDM = 4;
pub const SOCK_SEQPACKET = 5;
pub const SOCK_DCCP = 6;
pub const SOCK_PACKET = 10;
pub const SOCK_CLOEXEC = 0o2000000;
pub const SOCK_NONBLOCK = 0o4000;
pub const PROTO_ip = 0o000;
pub const PROTO_icmp = 0o001;
pub const PROTO_igmp = 0o002;
@ -149,6 +138,20 @@ pub const PROTO_encap = 0o142;
pub const PROTO_pim = 0o147;
pub const PROTO_raw = 0o377;
pub const SHUT_RD = 0;
pub const SHUT_WR = 1;
pub const SHUT_RDWR = 2;
pub const SOCK_STREAM = 1;
pub const SOCK_DGRAM = 2;
pub const SOCK_RAW = 3;
pub const SOCK_RDM = 4;
pub const SOCK_SEQPACKET = 5;
pub const SOCK_DCCP = 6;
pub const SOCK_PACKET = 10;
pub const SOCK_CLOEXEC = 0o2000000;
pub const SOCK_NONBLOCK = 0o4000;
pub const PF_UNSPEC = 0;
pub const PF_LOCAL = 1;
pub const PF_UNIX = PF_LOCAL;
@ -193,7 +196,10 @@ pub const PF_CAIF = 37;
pub const PF_ALG = 38;
pub const PF_NFC = 39;
pub const PF_VSOCK = 40;
pub const PF_MAX = 41;
pub const PF_KCM = 41;
pub const PF_QIPCRTR = 42;
pub const PF_SMC = 43;
pub const PF_MAX = 44;
pub const AF_UNSPEC = PF_UNSPEC;
pub const AF_LOCAL = PF_LOCAL;
@ -239,8 +245,137 @@ pub const AF_CAIF = PF_CAIF;
pub const AF_ALG = PF_ALG;
pub const AF_NFC = PF_NFC;
pub const AF_VSOCK = PF_VSOCK;
pub const AF_KCM = PF_KCM;
pub const AF_QIPCRTR = PF_QIPCRTR;
pub const AF_SMC = PF_SMC;
pub const AF_MAX = PF_MAX;
pub const SO_DEBUG = 1;
pub const SO_REUSEADDR = 2;
pub const SO_TYPE = 3;
pub const SO_ERROR = 4;
pub const SO_DONTROUTE = 5;
pub const SO_BROADCAST = 6;
pub const SO_SNDBUF = 7;
pub const SO_RCVBUF = 8;
pub const SO_KEEPALIVE = 9;
pub const SO_OOBINLINE = 10;
pub const SO_NO_CHECK = 11;
pub const SO_PRIORITY = 12;
pub const SO_LINGER = 13;
pub const SO_BSDCOMPAT = 14;
pub const SO_REUSEPORT = 15;
pub const SO_PASSCRED = 16;
pub const SO_PEERCRED = 17;
pub const SO_RCVLOWAT = 18;
pub const SO_SNDLOWAT = 19;
pub const SO_RCVTIMEO = 20;
pub const SO_SNDTIMEO = 21;
pub const SO_ACCEPTCONN = 30;
pub const SO_SNDBUFFORCE = 32;
pub const SO_RCVBUFFORCE = 33;
pub const SO_PROTOCOL = 38;
pub const SO_DOMAIN = 39;
pub const SO_SECURITY_AUTHENTICATION = 22;
pub const SO_SECURITY_ENCRYPTION_TRANSPORT = 23;
pub const SO_SECURITY_ENCRYPTION_NETWORK = 24;
pub const SO_BINDTODEVICE = 25;
pub const SO_ATTACH_FILTER = 26;
pub const SO_DETACH_FILTER = 27;
pub const SO_GET_FILTER = SO_ATTACH_FILTER;
pub const SO_PEERNAME = 28;
pub const SO_TIMESTAMP = 29;
pub const SCM_TIMESTAMP = SO_TIMESTAMP;
pub const SO_PEERSEC = 31;
pub const SO_PASSSEC = 34;
pub const SO_TIMESTAMPNS = 35;
pub const SCM_TIMESTAMPNS = SO_TIMESTAMPNS;
pub const SO_MARK = 36;
pub const SO_TIMESTAMPING = 37;
pub const SCM_TIMESTAMPING = SO_TIMESTAMPING;
pub const SO_RXQ_OVFL = 40;
pub const SO_WIFI_STATUS = 41;
pub const SCM_WIFI_STATUS = SO_WIFI_STATUS;
pub const SO_PEEK_OFF = 42;
pub const SO_NOFCS = 43;
pub const SO_LOCK_FILTER = 44;
pub const SO_SELECT_ERR_QUEUE = 45;
pub const SO_BUSY_POLL = 46;
pub const SO_MAX_PACING_RATE = 47;
pub const SO_BPF_EXTENSIONS = 48;
pub const SO_INCOMING_CPU = 49;
pub const SO_ATTACH_BPF = 50;
pub const SO_DETACH_BPF = SO_DETACH_FILTER;
pub const SO_ATTACH_REUSEPORT_CBPF = 51;
pub const SO_ATTACH_REUSEPORT_EBPF = 52;
pub const SO_CNX_ADVICE = 53;
pub const SCM_TIMESTAMPING_OPT_STATS = 54;
pub const SO_MEMINFO = 55;
pub const SO_INCOMING_NAPI_ID = 56;
pub const SO_COOKIE = 57;
pub const SCM_TIMESTAMPING_PKTINFO = 58;
pub const SO_PEERGROUPS = 59;
pub const SO_ZEROCOPY = 60;
pub const SOL_SOCKET = 1;
pub const SOL_IP = 0;
pub const SOL_IPV6 = 41;
pub const SOL_ICMPV6 = 58;
pub const SOL_RAW = 255;
pub const SOL_DECNET = 261;
pub const SOL_X25 = 262;
pub const SOL_PACKET = 263;
pub const SOL_ATM = 264;
pub const SOL_AAL = 265;
pub const SOL_IRDA = 266;
pub const SOL_NETBEUI = 267;
pub const SOL_LLC = 268;
pub const SOL_DCCP = 269;
pub const SOL_NETLINK = 270;
pub const SOL_TIPC = 271;
pub const SOL_RXRPC = 272;
pub const SOL_PPPOL2TP = 273;
pub const SOL_BLUETOOTH = 274;
pub const SOL_PNPIPE = 275;
pub const SOL_RDS = 276;
pub const SOL_IUCV = 277;
pub const SOL_CAIF = 278;
pub const SOL_ALG = 279;
pub const SOL_NFC = 280;
pub const SOL_KCM = 281;
pub const SOL_TLS = 282;
pub const SOMAXCONN = 128;
pub const MSG_OOB = 0x0001;
pub const MSG_PEEK = 0x0002;
pub const MSG_DONTROUTE = 0x0004;
pub const MSG_CTRUNC = 0x0008;
pub const MSG_PROXY = 0x0010;
pub const MSG_TRUNC = 0x0020;
pub const MSG_DONTWAIT = 0x0040;
pub const MSG_EOR = 0x0080;
pub const MSG_WAITALL = 0x0100;
pub const MSG_FIN = 0x0200;
pub const MSG_SYN = 0x0400;
pub const MSG_CONFIRM = 0x0800;
pub const MSG_RST = 0x1000;
pub const MSG_ERRQUEUE = 0x2000;
pub const MSG_NOSIGNAL = 0x4000;
pub const MSG_MORE = 0x8000;
pub const MSG_WAITFORONE = 0x10000;
pub const MSG_BATCH = 0x40000;
pub const MSG_ZEROCOPY = 0x4000000;
pub const MSG_FASTOPEN = 0x20000000;
pub const MSG_CMSG_CLOEXEC = 0x40000000;
pub const DT_UNKNOWN = 0;
pub const DT_FIFO = 1;
pub const DT_CHR = 2;
@ -343,6 +478,126 @@ pub const CLOCK_BOOTTIME_ALARM = 9;
pub const CLOCK_SGI_CYCLE = 10;
pub const CLOCK_TAI = 11;
pub const CSIGNAL = 0x000000ff;
pub const CLONE_VM = 0x00000100;
pub const CLONE_FS = 0x00000200;
pub const CLONE_FILES = 0x00000400;
pub const CLONE_SIGHAND = 0x00000800;
pub const CLONE_PTRACE = 0x00002000;
pub const CLONE_VFORK = 0x00004000;
pub const CLONE_PARENT = 0x00008000;
pub const CLONE_THREAD = 0x00010000;
pub const CLONE_NEWNS = 0x00020000;
pub const CLONE_SYSVSEM = 0x00040000;
pub const CLONE_SETTLS = 0x00080000;
pub const CLONE_PARENT_SETTID = 0x00100000;
pub const CLONE_CHILD_CLEARTID = 0x00200000;
pub const CLONE_DETACHED = 0x00400000;
pub const CLONE_UNTRACED = 0x00800000;
pub const CLONE_CHILD_SETTID = 0x01000000;
pub const CLONE_NEWCGROUP = 0x02000000;
pub const CLONE_NEWUTS = 0x04000000;
pub const CLONE_NEWIPC = 0x08000000;
pub const CLONE_NEWUSER = 0x10000000;
pub const CLONE_NEWPID = 0x20000000;
pub const CLONE_NEWNET = 0x40000000;
pub const CLONE_IO = 0x80000000;
pub const MS_RDONLY = 1;
pub const MS_NOSUID = 2;
pub const MS_NODEV = 4;
pub const MS_NOEXEC = 8;
pub const MS_SYNCHRONOUS = 16;
pub const MS_REMOUNT = 32;
pub const MS_MANDLOCK = 64;
pub const MS_DIRSYNC = 128;
pub const MS_NOATIME = 1024;
pub const MS_NODIRATIME = 2048;
pub const MS_BIND = 4096;
pub const MS_MOVE = 8192;
pub const MS_REC = 16384;
pub const MS_SILENT = 32768;
pub const MS_POSIXACL = (1<<16);
pub const MS_UNBINDABLE = (1<<17);
pub const MS_PRIVATE = (1<<18);
pub const MS_SLAVE = (1<<19);
pub const MS_SHARED = (1<<20);
pub const MS_RELATIME = (1<<21);
pub const MS_KERNMOUNT = (1<<22);
pub const MS_I_VERSION = (1<<23);
pub const MS_STRICTATIME = (1<<24);
pub const MS_LAZYTIME = (1<<25);
pub const MS_NOREMOTELOCK = (1<<27);
pub const MS_NOSEC = (1<<28);
pub const MS_BORN = (1<<29);
pub const MS_ACTIVE = (1<<30);
pub const MS_NOUSER = (1<<31);
pub const MS_RMT_MASK = (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION|MS_LAZYTIME);
pub const MS_MGC_VAL = 0xc0ed0000;
pub const MS_MGC_MSK = 0xffff0000;
pub const MNT_FORCE = 1;
pub const MNT_DETACH = 2;
pub const MNT_EXPIRE = 4;
pub const UMOUNT_NOFOLLOW = 8;
pub const S_IFMT = 0o170000;
pub const S_IFDIR = 0o040000;
pub const S_IFCHR = 0o020000;
pub const S_IFBLK = 0o060000;
pub const S_IFREG = 0o100000;
pub const S_IFIFO = 0o010000;
pub const S_IFLNK = 0o120000;
pub const S_IFSOCK = 0o140000;
pub const S_ISUID = 0o4000;
pub const S_ISGID = 0o2000;
pub const S_ISVTX = 0o1000;
pub const S_IRUSR = 0o400;
pub const S_IWUSR = 0o200;
pub const S_IXUSR = 0o100;
pub const S_IRWXU = 0o700;
pub const S_IRGRP = 0o040;
pub const S_IWGRP = 0o020;
pub const S_IXGRP = 0o010;
pub const S_IRWXG = 0o070;
pub const S_IROTH = 0o004;
pub const S_IWOTH = 0o002;
pub const S_IXOTH = 0o001;
pub const S_IRWXO = 0o007;
pub fn S_ISREG(m: u32) bool {
return m & S_IFMT == S_IFREG;
}
pub fn S_ISDIR(m: u32) bool {
return m & S_IFMT == S_IFDIR;
}
pub fn S_ISCHR(m: u32) bool {
return m & S_IFMT == S_IFCHR;
}
pub fn S_ISBLK(m: u32) bool {
return m & S_IFMT == S_IFBLK;
}
pub fn S_ISFIFO(m: u32) bool {
return m & S_IFMT == S_IFIFO;
}
pub fn S_ISLNK(m: u32) bool {
return m & S_IFMT == S_IFLNK;
}
pub fn S_ISSOCK(m: u32) bool {
return m & S_IFMT == S_IFSOCK;
}
pub const TFD_NONBLOCK = O_NONBLOCK;
pub const TFD_CLOEXEC = O_CLOEXEC;
@ -380,6 +635,10 @@ pub fn chdir(path: &const u8) usize {
return syscall1(SYS_chdir, @ptrToInt(path));
}
pub fn chroot(path: &const u8) usize {
return syscall1(SYS_chroot, @ptrToInt(path));
}
pub fn execve(path: &const u8, argv: &const ?&const u8, envp: &const ?&const u8) usize {
return syscall3(SYS_execve, @ptrToInt(path), @ptrToInt(argv), @ptrToInt(envp));
}
@ -409,6 +668,18 @@ pub fn mkdir(path: &const u8, mode: u32) usize {
return syscall2(SYS_mkdir, @ptrToInt(path), mode);
}
pub fn mount(special: &const u8, dir: &const u8, fstype: &const u8, flags: usize, data: usize) usize {
return syscall5(SYS_mount, @ptrToInt(special), @ptrToInt(dir), @ptrToInt(fstype), flags, data);
}
pub fn umount(special: &const u8) usize {
return syscall2(SYS_umount2, @ptrToInt(special), 0);
}
pub fn umount2(special: &const u8, flags: u32) usize {
return syscall2(SYS_umount2, @ptrToInt(special), flags);
}
pub fn mmap(address: ?&u8, length: usize, prot: usize, flags: usize, fd: i32, offset: isize) usize {
return syscall6(SYS_mmap, @ptrToInt(address), length, prot, flags, usize(fd),
@bitCast(usize, offset));
@ -515,6 +786,58 @@ pub fn setregid(rgid: u32, egid: u32) usize {
return syscall2(SYS_setregid, rgid, egid);
}
pub fn getuid() u32 {
return u32(syscall0(SYS_getuid));
}
pub fn getgid() u32 {
return u32(syscall0(SYS_getgid));
}
pub fn geteuid() u32 {
return u32(syscall0(SYS_geteuid));
}
pub fn getegid() u32 {
return u32(syscall0(SYS_getegid));
}
pub fn seteuid(euid: u32) usize {
return syscall1(SYS_seteuid, euid);
}
pub fn setegid(egid: u32) usize {
return syscall1(SYS_setegid, egid);
}
pub fn getresuid(ruid: &u32, euid: &u32, suid: &u32) usize {
return syscall3(SYS_getresuid, @ptrToInt(ruid), @ptrToInt(euid), @ptrToInt(suid));
}
pub fn getresgid(rgid: &u32, egid: &u32, sgid: &u32) usize {
return syscall3(SYS_getresgid, @ptrToInt(rgid), @ptrToInt(egid), @ptrToInt(sgid));
}
pub fn setresuid(ruid: u32, euid: u32, suid: u32) usize {
return syscall3(SYS_setresuid, ruid, euid, suid);
}
pub fn setresgid(rgid: u32, egid: u32, sgid: u32) usize {
return syscall3(SYS_setresgid, rgid, egid, sgid);
}
pub fn getgroups(size: usize, list: &u32) usize {
return syscall2(SYS_getgroups, size, @ptrToInt(list));
}
pub fn setgroups(size: usize, list: &const u32) usize {
return syscall2(SYS_setgroups, size, @ptrToInt(list));
}
pub fn getpid() i32 {
return @bitCast(i32, u32(syscall0(SYS_getpid)));
}
pub fn sigprocmask(flags: u32, noalias set: &const sigset_t, noalias oldset: ?&sigset_t) usize {
return syscall4(SYS_rt_sigprocmask, flags, @ptrToInt(set), @ptrToInt(oldset), NSIG/8);
}
@ -599,30 +922,27 @@ pub fn sigismember(set: &const sigset_t, sig: u6) bool {
return ((*set)[usize(s) / usize.bit_count] & (usize(1) << (s & (usize.bit_count - 1)))) != 0;
}
pub const in_port_t = u16;
pub const sa_family_t = u16;
pub const socklen_t = u32;
pub const in_addr = u32;
pub const in6_addr = [16]u8;
pub const sockaddr = extern struct {
family: sa_family_t,
port: u16,
data: [12]u8,
pub const sockaddr = extern union {
in: sockaddr_in,
in6: sockaddr_in6,
};
pub const sockaddr_in = extern struct {
family: sa_family_t,
port: u16,
addr: in_addr,
port: in_port_t,
addr: u32,
zero: [8]u8,
};
pub const sockaddr_in6 = extern struct {
family: sa_family_t,
port: u16,
port: in_port_t,
flowinfo: u32,
addr: in6_addr,
addr: [16]u8,
scope_id: u32,
};
@ -639,16 +959,16 @@ pub fn getpeername(fd: i32, noalias addr: &sockaddr, noalias len: &socklen_t) us
return syscall3(SYS_getpeername, usize(fd), @ptrToInt(addr), @ptrToInt(len));
}
pub fn socket(domain: i32, socket_type: i32, protocol: i32) usize {
return syscall3(SYS_socket, usize(domain), usize(socket_type), usize(protocol));
pub fn socket(domain: u32, socket_type: u32, protocol: u32) usize {
return syscall3(SYS_socket, domain, socket_type, protocol);
}
pub fn setsockopt(fd: i32, level: i32, optname: i32, optval: &const u8, optlen: socklen_t) usize {
return syscall5(SYS_setsockopt, usize(fd), usize(level), usize(optname), usize(optval), @ptrToInt(optlen));
pub fn setsockopt(fd: i32, level: u32, optname: u32, optval: &const u8, optlen: socklen_t) usize {
return syscall5(SYS_setsockopt, usize(fd), level, optname, usize(optval), @ptrToInt(optlen));
}
pub fn getsockopt(fd: i32, level: i32, optname: i32, noalias optval: &u8, noalias optlen: &socklen_t) usize {
return syscall5(SYS_getsockopt, usize(fd), usize(level), usize(optname), @ptrToInt(optval), @ptrToInt(optlen));
pub fn getsockopt(fd: i32, level: u32, optname: u32, noalias optval: &u8, noalias optlen: &socklen_t) usize {
return syscall5(SYS_getsockopt, usize(fd), level, optname, @ptrToInt(optval), @ptrToInt(optlen));
}
pub fn sendmsg(fd: i32, msg: &const msghdr, flags: u32) usize {
@ -677,8 +997,8 @@ pub fn bind(fd: i32, addr: &const sockaddr, len: socklen_t) usize {
return syscall3(SYS_bind, usize(fd), @ptrToInt(addr), usize(len));
}
pub fn listen(fd: i32, backlog: i32) usize {
return syscall2(SYS_listen, usize(fd), usize(backlog));
pub fn listen(fd: i32, backlog: u32) usize {
return syscall2(SYS_listen, usize(fd), backlog);
}
pub fn sendto(fd: i32, buf: &const u8, len: usize, flags: u32, addr: ?&const sockaddr, alen: socklen_t) usize {
@ -697,46 +1017,83 @@ pub fn accept4(fd: i32, noalias addr: &sockaddr, noalias len: &socklen_t, flags:
return syscall4(SYS_accept4, usize(fd), @ptrToInt(addr), @ptrToInt(len), flags);
}
// error NameTooLong;
// error SystemResources;
// error Io;
//
// pub fn if_nametoindex(name: []u8) !u32 {
// var ifr: ifreq = undefined;
//
// if (name.len >= ifr.ifr_name.len) {
// return error.NameTooLong;
// }
//
// const socket_ret = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
// const socket_err = getErrno(socket_ret);
// if (socket_err > 0) {
// return error.SystemResources;
// }
// const socket_fd = i32(socket_ret);
// @memcpy(&ifr.ifr_name[0], &name[0], name.len);
// ifr.ifr_name[name.len] = 0;
// const ioctl_ret = ioctl(socket_fd, SIOCGIFINDEX, &ifr);
// close(socket_fd);
// const ioctl_err = getErrno(ioctl_ret);
// if (ioctl_err > 0) {
// return error.Io;
// }
// return ifr.ifr_ifindex;
// }
pub fn fstat(fd: i32, stat_buf: &Stat) usize {
return syscall2(SYS_fstat, usize(fd), @ptrToInt(stat_buf));
}
pub const epoll_data = extern union {
pub fn stat(pathname: &const u8, statbuf: &Stat) usize {
return syscall2(SYS_stat, @ptrToInt(pathname), @ptrToInt(statbuf));
}
pub fn lstat(pathname: &const u8, statbuf: &Stat) usize {
return syscall2(SYS_lstat, @ptrToInt(pathname), @ptrToInt(statbuf));
}
pub fn listxattr(path: &const u8, list: &u8, size: usize) usize {
return syscall3(SYS_listxattr, @ptrToInt(path), @ptrToInt(list), size);
}
pub fn llistxattr(path: &const u8, list: &u8, size: usize) usize {
return syscall3(SYS_llistxattr, @ptrToInt(path), @ptrToInt(list), size);
}
pub fn flistxattr(fd: usize, list: &u8, size: usize) usize {
return syscall3(SYS_flistxattr, fd, @ptrToInt(list), size);
}
pub fn getxattr(path: &const u8, name: &const u8, value: &void, size: usize) usize {
return syscall4(SYS_getxattr, @ptrToInt(path), @ptrToInt(name), @ptrToInt(value), size);
}
pub fn lgetxattr(path: &const u8, name: &const u8, value: &void, size: usize) usize {
return syscall4(SYS_lgetxattr, @ptrToInt(path), @ptrToInt(name), @ptrToInt(value), size);
}
pub fn fgetxattr(fd: usize, name: &const u8, value: &void, size: usize) usize {
return syscall4(SYS_lgetxattr, fd, @ptrToInt(name), @ptrToInt(value), size);
}
pub fn setxattr(path: &const u8, name: &const u8, value: &const void,
size: usize, flags: usize) usize {
return syscall5(SYS_setxattr, @ptrToInt(path), @ptrToInt(name), @ptrToInt(value),
size, flags);
}
pub fn lsetxattr(path: &const u8, name: &const u8, value: &const void,
size: usize, flags: usize) usize {
return syscall5(SYS_lsetxattr, @ptrToInt(path), @ptrToInt(name), @ptrToInt(value),
size, flags);
}
pub fn fsetxattr(fd: usize, name: &const u8, value: &const void,
size: usize, flags: usize) usize {
return syscall5(SYS_fsetxattr, fd, @ptrToInt(name), @ptrToInt(value),
size, flags);
}
pub fn removexattr(path: &const u8, name: &const u8) usize {
return syscall2(SYS_removexattr, @ptrToInt(path), @ptrToInt(name));
}
pub fn lremovexattr(path: &const u8, name: &const u8) usize {
return syscall2(SYS_lremovexattr, @ptrToInt(path), @ptrToInt(name));
}
pub fn fremovexattr(fd: usize, name: &const u8) usize {
return syscall2(SYS_fremovexattr, fd, @ptrToInt(name));
}
pub const epoll_data = packed union {
ptr: usize,
fd: i32,
@"u32": u32,
@"u64": u64,
};
pub const epoll_event = extern struct {
pub const epoll_event = packed struct {
events: u32,
data: epoll_data,
};
@ -749,7 +1106,7 @@ pub fn epoll_create1(flags: usize) usize {
return syscall1(SYS_epoll_create1, flags);
}
pub fn epoll_ctl(epoll_fd: i32, op: i32, fd: i32, ev: &epoll_event) usize {
pub fn epoll_ctl(epoll_fd: i32, op: u32, fd: i32, ev: &epoll_event) usize {
return syscall4(SYS_epoll_ctl, usize(epoll_fd), usize(op), usize(fd), @ptrToInt(ev));
}
@ -774,6 +1131,125 @@ pub fn timerfd_settime(fd: i32, flags: u32, new_value: &const itimerspec, old_va
return syscall4(SYS_timerfd_settime, usize(fd), usize(flags), @ptrToInt(new_value), @ptrToInt(old_value));
}
pub const _LINUX_CAPABILITY_VERSION_1 = 0x19980330;
pub const _LINUX_CAPABILITY_U32S_1 = 1;
pub const _LINUX_CAPABILITY_VERSION_2 = 0x20071026;
pub const _LINUX_CAPABILITY_U32S_2 = 2;
pub const _LINUX_CAPABILITY_VERSION_3 = 0x20080522;
pub const _LINUX_CAPABILITY_U32S_3 = 2;
pub const VFS_CAP_REVISION_MASK = 0xFF000000;
pub const VFS_CAP_REVISION_SHIFT = 24;
pub const VFS_CAP_FLAGS_MASK = ~VFS_CAP_REVISION_MASK;
pub const VFS_CAP_FLAGS_EFFECTIVE = 0x000001;
pub const VFS_CAP_REVISION_1 = 0x01000000;
pub const VFS_CAP_U32_1 = 1;
pub const XATTR_CAPS_SZ_1 = @sizeOf(u32)*(1 + 2*VFS_CAP_U32_1);
pub const VFS_CAP_REVISION_2 = 0x02000000;
pub const VFS_CAP_U32_2 = 2;
pub const XATTR_CAPS_SZ_2 = @sizeOf(u32)*(1 + 2*VFS_CAP_U32_2);
pub const XATTR_CAPS_SZ = XATTR_CAPS_SZ_2;
pub const VFS_CAP_U32 = VFS_CAP_U32_2;
pub const VFS_CAP_REVISION = VFS_CAP_REVISION_2;
pub const vfs_cap_data = extern struct {
//all of these are mandated as little endian
//when on disk.
const Data = struct {
permitted: u32,
inheritable: u32,
};
magic_etc: u32,
data: [VFS_CAP_U32]Data,
};
pub const CAP_CHOWN = 0;
pub const CAP_DAC_OVERRIDE = 1;
pub const CAP_DAC_READ_SEARCH = 2;
pub const CAP_FOWNER = 3;
pub const CAP_FSETID = 4;
pub const CAP_KILL = 5;
pub const CAP_SETGID = 6;
pub const CAP_SETUID = 7;
pub const CAP_SETPCAP = 8;
pub const CAP_LINUX_IMMUTABLE = 9;
pub const CAP_NET_BIND_SERVICE = 10;
pub const CAP_NET_BROADCAST = 11;
pub const CAP_NET_ADMIN = 12;
pub const CAP_NET_RAW = 13;
pub const CAP_IPC_LOCK = 14;
pub const CAP_IPC_OWNER = 15;
pub const CAP_SYS_MODULE = 16;
pub const CAP_SYS_RAWIO = 17;
pub const CAP_SYS_CHROOT = 18;
pub const CAP_SYS_PTRACE = 19;
pub const CAP_SYS_PACCT = 20;
pub const CAP_SYS_ADMIN = 21;
pub const CAP_SYS_BOOT = 22;
pub const CAP_SYS_NICE = 23;
pub const CAP_SYS_RESOURCE = 24;
pub const CAP_SYS_TIME = 25;
pub const CAP_SYS_TTY_CONFIG = 26;
pub const CAP_MKNOD = 27;
pub const CAP_LEASE = 28;
pub const CAP_AUDIT_WRITE = 29;
pub const CAP_AUDIT_CONTROL = 30;
pub const CAP_SETFCAP = 31;
pub const CAP_MAC_OVERRIDE = 32;
pub const CAP_MAC_ADMIN = 33;
pub const CAP_SYSLOG = 34;
pub const CAP_WAKE_ALARM = 35;
pub const CAP_BLOCK_SUSPEND = 36;
pub const CAP_AUDIT_READ = 37;
pub const CAP_LAST_CAP = CAP_AUDIT_READ;
pub fn cap_valid(u8: x) bool {
return x >= 0 and x <= CAP_LAST_CAP;
}
pub fn CAP_TO_MASK(cap: u8) u32 {
return u32(1) << u5(cap & 31);
}
pub fn CAP_TO_INDEX(cap: u8) u8 {
return cap >> 5;
}
pub const cap_t = extern struct {
hdrp: &cap_user_header_t,
datap: &cap_user_data_t,
};
pub const cap_user_header_t = extern struct {
version: u32,
pid: usize,
};
pub const cap_user_data_t = extern struct {
effective: u32,
permitted: u32,
inheritable: u32,
};
pub fn unshare(flags: usize) usize {
return syscall1(SYS_unshare, usize(flags));
}
pub fn capget(hdrp: &cap_user_header_t, datap: &cap_user_data_t) usize {
return syscall2(SYS_capget, @ptrToInt(hdrp), @ptrToInt(datap));
}
pub fn capset(hdrp: &cap_user_header_t, datap: &const cap_user_data_t) usize {
return syscall2(SYS_capset, @ptrToInt(hdrp), @ptrToInt(datap));
}
test "import linux test" {
// TODO lazy analysis should prevent this test from being compiled on windows, but
// it is still compiled on windows

33
std/special/builtin.zig
View File

@ -14,26 +14,43 @@ pub fn panic(msg: []const u8, error_return_trace: ?&builtin.StackTrace) noreturn
}
}
// Note that memset does not return `dest`, like the libc API.
// The semantics of memset is dictated by the corresponding
// LLVM intrinsics, not by the libc API.
export fn memset(dest: ?&u8, c: u8, n: usize) void {
export fn memset(dest: ?&u8, c: u8, n: usize) ?&u8 {
@setRuntimeSafety(false);
var index: usize = 0;
while (index != n) : (index += 1)
(??dest)[index] = c;
return dest;
}
// Note that memcpy does not return `dest`, like the libc API.
// The semantics of memcpy is dictated by the corresponding
// LLVM intrinsics, not by the libc API.
export fn memcpy(noalias dest: ?&u8, noalias src: ?&const u8, n: usize) void {
export fn memcpy(noalias dest: ?&u8, noalias src: ?&const u8, n: usize) ?&u8 {
@setRuntimeSafety(false);
var index: usize = 0;
while (index != n) : (index += 1)
(??dest)[index] = (??src)[index];
return dest;
}
export fn memmove(dest: ?&u8, src: ?&const u8, n: usize) ?&u8 {
@setRuntimeSafety(false);
if (@ptrToInt(dest) < @ptrToInt(src)) {
var index: usize = 0;
while (index != n) : (index += 1) {
(??dest)[index] = (??src)[index];
}
} else {
var index = n;
while (index != 0) {
index -= 1;
(??dest)[index] = (??src)[index];
}
}
return dest;
}
comptime {

1376
std/zig/ast.zig
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File diff suppressed because it is too large Load Diff

5000
std/zig/parser.zig
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File diff suppressed because it is too large Load Diff

179
std/zig/tokenizer.zig
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@ -5,8 +5,6 @@ pub const Token = struct {
id: Id,
start: usize,
end: usize,
line: usize,
column: usize,
const KeywordId = struct {
bytes: []const u8,
@ -17,14 +15,18 @@ pub const Token = struct {
KeywordId{.bytes="align", .id = Id.Keyword_align},
KeywordId{.bytes="and", .id = Id.Keyword_and},
KeywordId{.bytes="asm", .id = Id.Keyword_asm},
KeywordId{.bytes="async", .id = Id.Keyword_async},
KeywordId{.bytes="await", .id = Id.Keyword_await},
KeywordId{.bytes="break", .id = Id.Keyword_break},
KeywordId{.bytes="catch", .id = Id.Keyword_catch},
KeywordId{.bytes="cancel", .id = Id.Keyword_cancel},
KeywordId{.bytes="comptime", .id = Id.Keyword_comptime},
KeywordId{.bytes="const", .id = Id.Keyword_const},
KeywordId{.bytes="continue", .id = Id.Keyword_continue},
KeywordId{.bytes="defer", .id = Id.Keyword_defer},
KeywordId{.bytes="else", .id = Id.Keyword_else},
KeywordId{.bytes="enum", .id = Id.Keyword_enum},
KeywordId{.bytes="errdefer", .id = Id.Keyword_errdefer},
KeywordId{.bytes="error", .id = Id.Keyword_error},
KeywordId{.bytes="export", .id = Id.Keyword_export},
KeywordId{.bytes="extern", .id = Id.Keyword_extern},
@ -39,10 +41,12 @@ pub const Token = struct {
KeywordId{.bytes="or", .id = Id.Keyword_or},
KeywordId{.bytes="packed", .id = Id.Keyword_packed},
KeywordId{.bytes="pub", .id = Id.Keyword_pub},
KeywordId{.bytes="resume", .id = Id.Keyword_resume},
KeywordId{.bytes="return", .id = Id.Keyword_return},
KeywordId{.bytes="section", .id = Id.Keyword_section},
KeywordId{.bytes="stdcallcc", .id = Id.Keyword_stdcallcc},
KeywordId{.bytes="struct", .id = Id.Keyword_struct},
KeywordId{.bytes="suspend", .id = Id.Keyword_suspend},
KeywordId{.bytes="switch", .id = Id.Keyword_switch},
KeywordId{.bytes="test", .id = Id.Keyword_test},
KeywordId{.bytes="this", .id = Id.Keyword_this},
@ -72,7 +76,8 @@ pub const Token = struct {
Invalid,
Identifier,
StringLiteral: StrLitKind,
StringIdentifier,
MultilineStringLiteralLine: StrLitKind,
CharLiteral,
Eof,
Builtin,
Bang,
@ -81,6 +86,7 @@ pub const Token = struct {
PipeEqual,
Equal,
EqualEqual,
EqualAngleBracketRight,
BangEqual,
LParen,
RParen,
@ -89,6 +95,8 @@ pub const Token = struct {
PercentEqual,
LBrace,
RBrace,
LBracket,
RBracket,
Period,
Ellipsis2,
Ellipsis3,
@ -132,7 +140,10 @@ pub const Token = struct {
Keyword_align,
Keyword_and,
Keyword_asm,
Keyword_async,
Keyword_await,
Keyword_break,
Keyword_cancel,
Keyword_catch,
Keyword_comptime,
Keyword_const,
@ -140,6 +151,7 @@ pub const Token = struct {
Keyword_defer,
Keyword_else,
Keyword_enum,
Keyword_errdefer,
Keyword_error,
Keyword_export,
Keyword_extern,
@ -154,10 +166,12 @@ pub const Token = struct {
Keyword_or,
Keyword_packed,
Keyword_pub,
Keyword_resume,
Keyword_return,
Keyword_section,
Keyword_stdcallcc,
Keyword_struct,
Keyword_suspend,
Keyword_switch,
Keyword_test,
Keyword_this,
@ -176,28 +190,34 @@ pub const Token = struct {
pub const Tokenizer = struct {
buffer: []const u8,
index: usize,
line: usize,
column: usize,
pending_invalid_token: ?Token,
pub const LineLocation = struct {
pub const Location = struct {
line: usize,
column: usize,
line_start: usize,
line_end: usize,
};
pub fn getTokenLocation(self: &Tokenizer, token: &const Token) LineLocation {
var loc = LineLocation {
.line_start = 0,
pub fn getTokenLocation(self: &Tokenizer, start_index: usize, token: &const Token) Location {
var loc = Location {
.line = 0,
.column = 0,
.line_start = start_index,
.line_end = self.buffer.len,
};
for (self.buffer) |c, i| {
if (i == token.start) {
loc.line_end = i;
for (self.buffer[start_index..]) |c, i| {
if (i + start_index == token.start) {
loc.line_end = i + start_index;
while (loc.line_end < self.buffer.len and self.buffer[loc.line_end] != '\n') : (loc.line_end += 1) {}
return loc;
}
if (c == '\n') {
loc.line += 1;
loc.column = 0;
loc.line_start = i + 1;
} else {
loc.column += 1;
}
}
return loc;
@ -212,8 +232,6 @@ pub const Tokenizer = struct {
return Tokenizer {
.buffer = buffer,
.index = 0,
.line = 0,
.column = 0,
.pending_invalid_token = null,
};
}
@ -225,6 +243,12 @@ pub const Tokenizer = struct {
C,
StringLiteral,
StringLiteralBackslash,
MultilineStringLiteralLine,
MultilineStringLiteralLineBackslash,
CharLiteral,
CharLiteralBackslash,
CharLiteralEnd,
Backslash,
Equal,
Bang,
Pipe,
@ -261,26 +285,22 @@ pub const Tokenizer = struct {
self.pending_invalid_token = null;
return token;
}
const start_index = self.index;
var state = State.Start;
var result = Token {
.id = Token.Id.Eof,
.start = self.index,
.end = undefined,
.line = self.line,
.column = self.column,
};
while (self.index < self.buffer.len) {
while (self.index < self.buffer.len) : (self.index += 1) {
const c = self.buffer[self.index];
switch (state) {
State.Start => switch (c) {
' ' => {
result.start = self.index + 1;
result.column += 1;
},
'\n' => {
result.start = self.index + 1;
result.line += 1;
result.column = 0;
},
'c' => {
state = State.C;
@ -290,6 +310,9 @@ pub const Tokenizer = struct {
state = State.StringLiteral;
result.id = Token.Id { .StringLiteral = Token.StrLitKind.Normal };
},
'\'' => {
state = State.CharLiteral;
},
'a'...'b', 'd'...'z', 'A'...'Z', '_' => {
state = State.Identifier;
result.id = Token.Id.Identifier;
@ -316,6 +339,16 @@ pub const Tokenizer = struct {
self.index += 1;
break;
},
'[' => {
result.id = Token.Id.LBracket;
self.index += 1;
break;
},
']' => {
result.id = Token.Id.RBracket;
self.index += 1;
break;
},
';' => {
result.id = Token.Id.Semicolon;
self.index += 1;
@ -352,6 +385,10 @@ pub const Tokenizer = struct {
'^' => {
state = State.Caret;
},
'\\' => {
state = State.Backslash;
result.id = Token.Id { .MultilineStringLiteralLine = Token.StrLitKind.Normal };
},
'{' => {
result.id = Token.Id.LBrace;
self.index += 1;
@ -396,7 +433,7 @@ pub const Tokenizer = struct {
State.SawAtSign => switch (c) {
'"' => {
result.id = Token.Id.StringIdentifier;
result.id = Token.Id.Identifier;
state = State.StringLiteral;
},
else => {
@ -532,8 +569,17 @@ pub const Tokenizer = struct {
'a'...'z', 'A'...'Z', '_', '0'...'9' => {},
else => break,
},
State.Backslash => switch (c) {
'\\' => {
state = State.MultilineStringLiteralLine;
},
else => break,
},
State.C => switch (c) {
'\\' => @panic("TODO"),
'\\' => {
state = State.Backslash;
result.id = Token.Id { .MultilineStringLiteralLine = Token.StrLitKind.C };
},
'"' => {
state = State.StringLiteral;
result.id = Token.Id { .StringLiteral = Token.StrLitKind.C };
@ -562,6 +608,64 @@ pub const Tokenizer = struct {
},
},
State.CharLiteral => switch (c) {
'\\' => {
state = State.CharLiteralBackslash;
},
'\'' => {
result.id = Token.Id.Invalid;
break;
},
else => {
if (c < 0x20 or c == 0x7f) {
result.id = Token.Id.Invalid;
break;
}
state = State.CharLiteralEnd;
}
},
State.CharLiteralBackslash => switch (c) {
'\n' => {
result.id = Token.Id.Invalid;
break;
},
else => {
state = State.CharLiteralEnd;
},
},
State.CharLiteralEnd => switch (c) {
'\'' => {
result.id = Token.Id.CharLiteral;
self.index += 1;
break;
},
else => {
result.id = Token.Id.Invalid;
break;
},
},
State.MultilineStringLiteralLine => switch (c) {
'\\' => {
state = State.MultilineStringLiteralLineBackslash;
},
'\n' => {
self.index += 1;
break;
},
else => self.checkLiteralCharacter(),
},
State.MultilineStringLiteralLineBackslash => switch (c) {
'\n' => break, // Look for this error later.
else => {
state = State.MultilineStringLiteralLine;
},
},
State.Bang => switch (c) {
'=' => {
result.id = Token.Id.BangEqual;
@ -597,6 +701,11 @@ pub const Tokenizer = struct {
self.index += 1;
break;
},
'>' => {
result.id = Token.Id.EqualAngleBracketRight;
self.index += 1;
break;
},
else => {
result.id = Token.Id.Equal;
break;
@ -794,14 +903,6 @@ pub const Tokenizer = struct {
else => break,
},
}
self.index += 1;
if (c == '\n') {
self.line += 1;
self.column = 0;
} else {
self.column += 1;
}
} else if (self.index == self.buffer.len) {
switch (state) {
State.Start,
@ -811,6 +912,7 @@ pub const Tokenizer = struct {
State.FloatFraction,
State.FloatExponentNumber,
State.StringLiteral, // find this error later
State.MultilineStringLiteralLine,
State.Builtin => {},
State.Identifier => {
@ -825,6 +927,11 @@ pub const Tokenizer = struct {
State.NumberDot,
State.FloatExponentUnsigned,
State.SawAtSign,
State.Backslash,
State.MultilineStringLiteralLineBackslash,
State.CharLiteral,
State.CharLiteralBackslash,
State.CharLiteralEnd,
State.StringLiteralBackslash => {
result.id = Token.Id.Invalid;
},
@ -894,6 +1001,7 @@ pub const Tokenizer = struct {
},
}
}
if (result.id == Token.Id.Eof) {
if (self.pending_invalid_token) |token| {
self.pending_invalid_token = null;
@ -917,8 +1025,6 @@ pub const Tokenizer = struct {
.id = Token.Id.Invalid,
.start = self.index,
.end = self.index + invalid_length,
.line = self.line,
.column = self.column,
};
}
@ -968,9 +1074,16 @@ test "tokenizer" {
});
}
test "tokenizer - chars" {
testTokenize("'c'", []Token.Id {Token.Id.CharLiteral});
}
test "tokenizer - invalid token characters" {
testTokenize("#", []Token.Id{Token.Id.Invalid});
testTokenize("`", []Token.Id{Token.Id.Invalid});
testTokenize("'c", []Token.Id {Token.Id.Invalid});
testTokenize("'", []Token.Id {Token.Id.Invalid});
testTokenize("''", []Token.Id {Token.Id.Invalid, Token.Id.Invalid});
}
test "tokenizer - invalid literal/comment characters" {
@ -1022,7 +1135,7 @@ test "tokenizer - string identifier and builtin fns" {
,
[]Token.Id{
Token.Id.Keyword_const,
Token.Id.StringIdentifier,
Token.Id.Identifier,
Token.Id.Equal,
Token.Id.Builtin,
Token.Id.LParen,

35
test/cases/coroutines.zig
View File

@ -1,4 +1,5 @@
const std = @import("std");
const builtin = @import("builtin");
const assert = std.debug.assert;
var x: i32 = 1;
@ -189,3 +190,37 @@ async fn failing() !void {
suspend;
return error.Fail;
}
test "error return trace across suspend points - early return" {
const p = nonFailing();
resume p;
const p2 = try async<std.debug.global_allocator> printTrace(p);
cancel p2;
}
test "error return trace across suspend points - async return" {
const p = nonFailing();
const p2 = try async<std.debug.global_allocator> printTrace(p);
resume p;
cancel p2;
}
fn nonFailing() promise->error!void {
return async<std.debug.global_allocator> suspendThenFail() catch unreachable;
}
async fn suspendThenFail() error!void {
suspend;
return error.Fail;
}
async fn printTrace(p: promise->error!void) void {
(await p) catch |e| {
std.debug.assert(e == error.Fail);
if (@errorReturnTrace()) |trace| {
assert(trace.index == 1);
} else if (builtin.mode != builtin.Mode.ReleaseFast) {
@panic("expected return trace");
}
};
}

10
test/cases/fn.zig
View File

@ -94,3 +94,13 @@ test "inline function call" {
}
fn add(a: i32, b: i32) i32 { return a + b; }
test "number literal as an argument" {
numberLiteralArg(3);
comptime numberLiteralArg(3);
}
fn numberLiteralArg(a: var) void {
assert(a == 3);
}

2
test/compile_errors.zig
View File

@ -1723,7 +1723,7 @@ pub fn addCases(cases: &tests.CompileErrorContext) void {
\\}
\\
\\export fn entry() usize { return @sizeOf(@typeOf(bar)); }
, ".tmp_source.zig:10:16: error: parameter of type '(integer literal)' requires comptime");
, ".tmp_source.zig:10:16: error: compiler bug: integer and float literals in var args function must be casted");
cases.add("assign too big number to u16",
\\export fn foo() void {