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Ensure 16B stack alignment for x86

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This commit is contained in:
Gary Guo 2023-05-07 12:15:24 +01:00
parent 87851eb776
commit 73c9fbf66e
1 changed files with 6 additions and 6 deletions
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12
src/unwinder/arch/x86.rs
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@ -61,14 +61,14 @@ pub extern "C-unwind" fn save_context(f: extern "C" fn(&mut Context, *mut ()), p
unsafe {
asm!(
"
sub esp, 44
sub esp, 52
mov [esp + 4], ecx
mov [esp + 8], edx
mov [esp + 12], ebx
/* Adjust the stack to account for the return address */
lea eax, [esp + 48]
lea eax, [esp + 56]
mov [esp + 16], eax
mov [esp + 20], ebp
@ -76,19 +76,19 @@ pub extern "C-unwind" fn save_context(f: extern "C" fn(&mut Context, *mut ()), p
mov [esp + 28], edi
/* Return address */
mov eax, [esp + 44]
mov eax, [esp + 52]
mov [esp + 32], eax
stmxcsr [esp + 36]
fnstcw [esp + 40]
mov eax, [esp + 52]
mov eax, [esp + 60]
mov ecx, esp
push eax
push ecx
call [esp + 56]
call [esp + 64]
add esp, 52
add esp, 60
ret
",
options(noreturn)