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Add cfi directives.

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2004-01-10  Andreas Jaeger  <aj@suse.de>

	* sysdeps/unix/sysv/linux/x86_64/vfork.S: Add cfi directives.
This commit is contained in:
Andreas Jaeger 2004-01-10 19:23:44 +00:00
parent 0e328c858a
commit 5b2da5f395
2 changed files with 7 additions and 1 deletions
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4
linuxthreads/ChangeLog
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@ -1,3 +1,7 @@
2004-01-10 Andreas Jaeger <aj@suse.de>
* sysdeps/unix/sysv/linux/x86_64/vfork.S: Add cfi directives.
2004-01-01 Andreas Jaeger <aj@suse.de> 2004-01-01 Andreas Jaeger <aj@suse.de>
* Makefile (generated): Add missing files. * Makefile (generated): Add missing files.

4
linuxthreads/sysdeps/unix/sysv/linux/x86_64/vfork.S
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@ -1,4 +1,4 @@
/* Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. /* Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -39,6 +39,7 @@ ENTRY (__vfork)
/* Pop the return PC value into RDI. We need a register that /* Pop the return PC value into RDI. We need a register that
is preserved by the syscall and that we're allowed to destroy. */ is preserved by the syscall and that we're allowed to destroy. */
popq %rdi popq %rdi
cfi_adjust_cfa_offset(-8)
/* Stuff the syscall number in RAX and enter into the kernel. */ /* Stuff the syscall number in RAX and enter into the kernel. */
movl $SYS_ify (vfork), %eax movl $SYS_ify (vfork), %eax
@ -46,6 +47,7 @@ ENTRY (__vfork)
/* Push back the return PC. */ /* Push back the return PC. */
pushq %rdi pushq %rdi
cfi_adjust_cfa_offset(-7)
cmpl $-4095, %eax cmpl $-4095, %eax
jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */ jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */