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Fix x86 cfi directives for syscalls.

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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
This commit is contained in:
Christopher Ferris
2014-05-29 18:17:09 -07:00
parent 264d1b8325
commit 15b91e92a0
185 changed files with 1025 additions and 723 deletions
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12
libc/arch-x86/syscalls/dup3.S
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@@ -4,12 +4,14 @@
ENTRY(dup3)
pushl %ebx
pushl %ecx
pushl %edx
.cfi_def_cfa_offset 12
.cfi_def_cfa_offset 8
.cfi_rel_offset ebx, 0
.cfi_rel_offset ecx, 4
.cfi_rel_offset edx, 8
pushl %ecx
.cfi_adjust_cfa_offset 4
.cfi_rel_offset ecx, 0
pushl %edx
.cfi_adjust_cfa_offset 4
.cfi_rel_offset edx, 0
mov 16(%esp), %ebx
mov 20(%esp), %ecx
mov 24(%esp), %edx