Fix x86 cfi directives for syscalls.
The syscall generation always used 4 bytes for each push cfi directive.
However, the first push should always use an offset of 8 bytes, each
subsequent push after that is only 4 bytes though.
Change-Id: Ibaabd107f399ef67010b9a08213783957c2f74a9
diff --git a/libc/arch-x86/syscalls/pwrite64.S b/libc/arch-x86/syscalls/pwrite64.S
index b003435..cccea8b 100644
--- a/libc/arch-x86/syscalls/pwrite64.S
+++ b/libc/arch-x86/syscalls/pwrite64.S
@@ -4,16 +4,20 @@
ENTRY(pwrite64)
pushl %ebx
- pushl %ecx
- pushl %edx
- pushl %esi
- pushl %edi
- .cfi_def_cfa_offset 20
+ .cfi_def_cfa_offset 8
.cfi_rel_offset ebx, 0
- .cfi_rel_offset ecx, 4
- .cfi_rel_offset edx, 8
- .cfi_rel_offset esi, 12
- .cfi_rel_offset edi, 16
+ pushl %ecx
+ .cfi_adjust_cfa_offset 4
+ .cfi_rel_offset ecx, 0
+ pushl %edx
+ .cfi_adjust_cfa_offset 4
+ .cfi_rel_offset edx, 0
+ pushl %esi
+ .cfi_adjust_cfa_offset 4
+ .cfi_rel_offset esi, 0
+ pushl %edi
+ .cfi_adjust_cfa_offset 4
+ .cfi_rel_offset edi, 0
mov 24(%esp), %ebx
mov 28(%esp), %ecx
mov 32(%esp), %edx