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std.Thread: fix freeAndExit on x86_64-linux (#12693)

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Previously, this function used incorrect registers for the munmap syscall, leading to detached threads not cleaning up.

closes #12690

Co-authored-by: bxlr <biexelar@diroot.org>
This commit is contained in:
biexelar
2022-08-31 02:31:47 +00:00
committed by GitHub
parent 56cfa8f22f
commit 59e33b447b
1 changed files with 2 additions and 5 deletions
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lib/std/Thread.zig
+2 -5
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@@ -769,16 +769,13 @@ const LinuxThreadImpl = struct {
), ),
.x86_64 => asm volatile ( .x86_64 => asm volatile (
\\ movq $11, %%rax \\ movq $11, %%rax
\\ movq %[ptr], %%rbx
\\ movq %[len], %%rcx
\\ syscall \\ syscall
\\ movq $60, %%rax \\ movq $60, %%rax
\\ movq $1, %%rdi \\ movq $1, %%rdi
\\ syscall \\ syscall
: :
: [ptr] "r" (@ptrToInt(self.mapped.ptr)), : [ptr] "{rdi}" (@ptrToInt(self.mapped.ptr)),
[len] "r" (self.mapped.len), [len] "{rsi}" (self.mapped.len),
: "memory"
), ),
.arm, .armeb, .thumb, .thumbeb => asm volatile ( .arm, .armeb, .thumb, .thumbeb => asm volatile (
\\ mov r7, #91 \\ mov r7, #91