* remove need for manual string concatenation for building binaries in test blocks
* include small program snippet to show how to get binary path with subslicing
This function is codegen'd incorrectly in stage2, since it fails to
generate the correct soft-float operations. This will be fixed once
issue #11161 is implemented
With this change, it is now possible to safely call
`var di = std.debug.openSelfDebugInfo(gpa)`. Calling then
`di.deinit()` on the object will correctly free all allocated
resources.
Ensure we store the result of `mmap` with correct alignment.
Rather than allocating Decl objects with an Allocator, we instead allocate
them with a SegmentedList. This provides four advantages:
* Stable memory so that one thread can access a Decl object while another
thread allocates additional Decl objects from this list.
* It allows us to use u32 indexes to reference Decl objects rather than
pointers, saving memory in Type, Value, and dependency sets.
* Using integers to reference Decl objects rather than pointers makes
serialization trivial.
* It provides a unique integer to be used for anonymous symbol names,
avoiding multi-threaded contention on an atomic counter.
With this change, it is now possible to safely call
`var di = std.debug.openSelfDebugInfo(gpa)`. Calling then
`di.deinit()` on the object will correctly free all allocated
resources.
While this code probably could do with some love and a redesign,
this commit fixes the allocations by making sure we explicitly
pass an allocator where required, and we use arenas for temporary
or narrowly-scoped objects such as a `Die` (for `Die` in particular,
not every `FormValue` will be allocated - we could duplicate, or
we can use an arena which is the proposal of this commit).
* Remove the Allocator field; instead it must be passed in as a
parameter to any function that needs it.
* Rename `push` to `append` and `pushMany` to `appendSlice` to match
the conventions set by ArrayList.
When a child process with stdin, stdout behavior set to pipe is
ran on macos it used to hang which has been fixed. Issue existed because
we forgot to call `posix_spawn_file_actions_addclose` syscall on user
exposed file descriptor which resulted on file descriptor not closing
properly.
So that people can start experimenting with compiling their projects
with the self-hosted compiler.
I expect this commit to be reverted after #89 is closed.
When the last instruction is a debug instruction, the type of it is void.
Similarly for 'noreturn' emit an 'unreachable' instruction to tell the wasm-validator
the path cannot be reached.
Also respect the '--strip' flag in the self-hosted wasm linker and not emit a 'name' section
when the flag is set to `true`.
There were a few minor bugs in the rounding behavior and Inf/NaN
handling for the f80 __addxf3 and __subtf3 functions.
This change updates the original generic implementation to correctly
handle f80 floats, including the explicit integer bit.
This change adds support for locating the Zig executable and the library
and global cache directories, based on looking in the fixed "/zig" and
"/cache" directories.
Since our argv[0] on WASI is just the basename (any absolute/relative
path information is deleted by the runtime), there's very limited
introspection we can do on WASI, so we rely on these fixed directories.
These can be provided on the command-line using `--mapdir`, as follows:
```
wasmtime --mapdir=/cwd::. --mapdir=/cache::"$HOME/.cache/zig" --mapdir=/zig::./zig-out/ ./zig-out/bin/zig.wasm
```
