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| author | Ulrich Drepper <drepper@redhat.com> | 2005-03-31 10:02:53 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2005-03-31 10:02:53 +0000 |
| commit | ee6189855aab3a9be8f3c2d95ce2b2cd17db4ec2 (patch) | |
| tree | cf3e2fe1f9be5b358033fd927a0bd922542e04a1 /sysdeps/unix/sysv/linux/x86_64/getcontext.S | |
| parent | 4d6302cf51b16a129addf7687c91490c40a7225c (diff) | |
| download | glibc-ee6189855aab3a9be8f3c2d95ce2b2cd17db4ec2.tar.gz glibc-ee6189855aab3a9be8f3c2d95ce2b2cd17db4ec2.tar.xz glibc-ee6189855aab3a9be8f3c2d95ce2b2cd17db4ec2.zip | |
* sysdeps/unix/sysv/linux/x86_64/getcontext.S: Use functionally
equivalent, but shorter instructions. * sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/setcontext.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/clone.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/swapcontext.S: Likewise. * sysdeps/unix/x86_64/sysdep.S: Likewise. * sysdeps/x86_64/strchr.S: Likewise. * sysdeps/x86_64/memset.S: Likewise. * sysdeps/x86_64/strcspn.S: Likewise. * sysdeps/x86_64/strcmp.S: Likewise. * sysdeps/x86_64/elf/start.S: Likewise. * sysdeps/x86_64/strspn.S: Likewise. * sysdeps/x86_64/dl-machine.h: Likewise. * sysdeps/x86_64/bsd-_setjmp.S: Likewise. * sysdeps/x86_64/bsd-setjmp.S: Likewise. * sysdeps/x86_64/strtok.S: Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86_64/getcontext.S')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/getcontext.S | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/getcontext.S b/sysdeps/unix/sysv/linux/x86_64/getcontext.S index 2f2c710040..d19c9f0d09 100644 --- a/sysdeps/unix/sysv/linux/x86_64/getcontext.S +++ b/sysdeps/unix/sysv/linux/x86_64/getcontext.S @@ -1,5 +1,5 @@ /* Save current context. - Copyright (C) 2002 Free Software Foundation, Inc. + Copyright (C) 2002, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger <aj@suse.de>, 2002. @@ -67,16 +67,20 @@ ENTRY(__getcontext) /* Save the current signal mask with rt_sigprocmask (SIG_BLOCK, NULL, set,_NSIG/8). */ leaq oSIGMASK(%rdi), %rdx - xorq %rsi,%rsi - movq $SIG_BLOCK, %rdi - movq $_NSIG8,%r10 - movq $__NR_rt_sigprocmask, %rax + xorl %esi,%esi +#if SIG_BLOCK == 0 + xorl %edi, %edi +#else + movl $SIG_BLOCK, %edi +#endif + movl $_NSIG8,%r10d + movl $__NR_rt_sigprocmask, %eax syscall cmpq $-4095, %rax /* Check %rax for error. */ jae SYSCALL_ERROR_LABEL /* Jump to error handler if error. */ /* All done, return 0 for success. */ - xorq %rax, %rax + xorl %eax, %eax L(pseudo_end): ret PSEUDO_END(__getcontext) |