2.5-18.1

1 files changed, 17 insertions, 2 deletions

diff --git a/sysdeps/unix/sysv/linux/i386/setcontext.S b/sysdeps/unix/sysv/linux/i386/setcontext.S
index ebed2ce572..bf2d7d2bad 100644
--- a/sysdeps/unix/sysv/linux/i386/setcontext.S
+++ b/sysdeps/unix/sysv/linux/i386/setcontext.S
@@ -1,5 +1,5 @@
 /* Install given context.
-   Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
 
@@ -31,12 +31,16 @@ ENTRY(__setcontext)
 	   the system call fails and we return from the function with an
 	   error.  */
 	pushl	%ebx
+	cfi_adjust_cfa_offset (4)
 	xorl	%edx, %edx
 	leal	oSIGMASK(%eax), %ecx
 	movl	$SIG_SETMASK, %ebx
+	cfi_rel_offset (ebx, 0)
 	movl	$__NR_sigprocmask, %eax
 	ENTER_KERNEL
 	popl	%ebx
+	cfi_adjust_cfa_offset (-4)
+	cfi_restore (ebx)
 	cmpl	$-4095, %eax		/* Check %eax for error.  */
 	jae	SYSCALL_ERROR_LABEL	/* Jump to error handler if error.  */
 
@@ -57,6 +61,13 @@ ENTRY(__setcontext)
 	movl	oEIP(%eax), %ecx
 
 	/* Load the new stack pointer.  */
+	cfi_def_cfa (eax, 0)
+	cfi_offset (edi, oEDI)
+	cfi_offset (esi, oESI)
+	cfi_offset (ebp, oEBP)
+	cfi_offset (ebx, oEBX)
+	cfi_offset (edx, oEDX)
+	cfi_offset (ecx, oECX)
 	movl	oESP(%eax), %esp
 
 	/* Push the return address on the new stack so we can return there.  */
@@ -72,6 +83,10 @@ ENTRY(__setcontext)
 	movl	oECX(%eax), %ecx
 	movl	oEAX(%eax), %eax
 
+	/* End FDE here, we fall into another context.  */
+	cfi_endproc
+	cfi_startproc
+
 	/* The following 'ret' will pop the address of the code and jump
 	   to it.  */
 
@@ -79,4 +94,4 @@ L(pseudo_end):
 	ret
 PSEUDO_END(__setcontext)
 
-weak_alias(__setcontext, setcontext)
+weak_alias (__setcontext, setcontext)