commit 15b91e92a0bb4a15b4f2258bea332f4a67fa94d7
author Christopher Ferris <cferris@google.com> Thu May 29 18:17:09 2014 -0700
committer Christopher Ferris <cferris@google.com> Thu May 29 19:04:36 2014 -0700
tree b83242c20fc59e1d5bc3420e9f8cbf2b5b6a1aae
parent 264d1b832510b746c1d45b5efaa33c164d6f8b2b

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

libc/arch-x86/syscalls/timerfd_settime.S

diff --git a/libc/arch-x86/syscalls/timerfd_settime.S b/libc/arch-x86/syscalls/timerfd_settime.S
index 3f4035e..bb027df 100644
--- a/libc/arch-x86/syscalls/timerfd_settime.S
+++ b/libc/arch-x86/syscalls/timerfd_settime.S
@@ -4,14 +4,17 @@
 
 ENTRY(timerfd_settime)
     pushl   %ebx
-    pushl   %ecx
-    pushl   %edx
-    pushl   %esi
-    .cfi_def_cfa_offset 16
+    .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
+    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
     mov     20(%esp), %ebx
     mov     24(%esp), %ecx
     mov     28(%esp), %edx