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start: workaround for LLVM 17 regression

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Tracking issue #16799
This commit is contained in:
Jacob Young 2023-08-13 05:55:00 -04:00 committed by Andrew Kelley
parent 39f1d96a2f
commit d7daf7c203
1 changed files with 10 additions and 1 deletions
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11
lib/std/start.zig
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@ -240,6 +240,14 @@ fn _start() callconv(.Naked) noreturn {
: [tos] "={rax}" (-> *std.os.plan9.Tos),
);
}
switch (native_arch) {
// https://github.com/ziglang/zig/issues/16799
.riscv64 => @export(argc_argv_ptr, .{
.name = "__zig_argc_argv_ptr",
.visibility = .hidden,
}),
else => {},
}
asm volatile (switch (native_arch) {
.x86_64 =>
\\ xorl %%ebp, %%ebp
@ -270,7 +278,8 @@ fn _start() callconv(.Naked) noreturn {
.riscv64 =>
\\ li s0, 0
\\ li ra, 0
\\ sd sp, %[argc_argv_ptr]
\\ lui a0, %hi(__zig_argc_argv_ptr)
\\ sd sp, %lo(__zig_argc_argv_ptr)(a0)
\\ andi sp, sp, -16
\\ tail %[posixCallMainAndExit]@plt
,