svn commit: r209642 - stable/8/lib/csu/i386-elf
Konstantin Belousov
kib at FreeBSD.org
Fri Jul 2 09:19:27 UTC 2010
Author: kib
Date: Fri Jul 2 09:19:27 2010
New Revision: 209642
URL: http://svn.freebsd.org/changeset/base/209642
Log:
MFC r209295:
Add unwind annotations to the asm part of crt1 on i386. Terminate the
process with SIGTRAP if _start1() unexpectedly returns.
Modified:
stable/8/lib/csu/i386-elf/crt1_s.S
Directory Properties:
stable/8/lib/csu/ (props changed)
Modified: stable/8/lib/csu/i386-elf/crt1_s.S
==============================================================================
--- stable/8/lib/csu/i386-elf/crt1_s.S Fri Jul 2 09:17:18 2010 (r209641)
+++ stable/8/lib/csu/i386-elf/crt1_s.S Fri Jul 2 09:19:27 2010 (r209642)
@@ -30,15 +30,22 @@
.align 4
.globl _start
.type _start, @function
-_start: xorl %ebp,%ebp
+_start:
+ .cfi_startproc
+ xorl %ebp,%ebp
pushl %ebp
+ .cfi_def_cfa_offset 4
movl %esp,%ebp
+ .cfi_offset %ebp,-8
+ .cfi_def_cfa_register %ebp
andl $0xfffffff0,%esp # align stack
leal 8(%ebp),%eax
pushl %eax # argv
pushl 4(%ebp) # argc
pushl %edx # rtld cleanup
call _start1
+ int3
+ .cfi_endproc
.size _start, . - _start
.ident "$FreeBSD$"
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