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| author | Ulrich Drepper <drepper@redhat.com> | 1998-02-17 15:26:57 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1998-02-17 15:26:57 +0000 |
| commit | 09e8bdd3cddb18bbe36dcf7031cac4e931a1c91c (patch) | |
| tree | fcf4ea7d92e643dc22edcb04a51e81ebd27e7802 /sysdeps | |
| parent | d7d1f4baddee50c8629458a84a0d0a28865708f8 (diff) | |
| download | glibc-09e8bdd3cddb18bbe36dcf7031cac4e931a1c91c.tar glibc-09e8bdd3cddb18bbe36dcf7031cac4e931a1c91c.tar.gz glibc-09e8bdd3cddb18bbe36dcf7031cac4e931a1c91c.tar.bz2 glibc-09e8bdd3cddb18bbe36dcf7031cac4e931a1c91c.zip | |
(rt_sigreturn): Make compatible with older kernels.
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/rt_sigaction.S | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S b/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S index 1d98de9695..3959e5d7df 100644 --- a/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S +++ b/sysdeps/unix/sysv/linux/alpha/rt_sigaction.S @@ -1,4 +1,4 @@ -/* Copyright (C) 1998 Free Software Foundation, Inc. +/* Copyright (C) 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Richard Henderson <rth@cygnus.com>, 1998 @@ -16,17 +16,17 @@ License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - + #include <sysdep.h> - + /* On Alpha we desparately want to avoid having to issue an imb. Ordinarily the kernel would have to issue one after setting up the signal return stack, but the Linux rt_sigaction syscall is prepared to accept a pointer - to the sigreturn syscall, instead of inlining it on the stack. - + to the sigreturn syscall, instead of inlining it on the stack. + This just about halves signal delivery time. */ - - + +#ifdef __NR_rt_sigaction .text ENTRY(__syscall_rt_sigaction) .frame sp,0,ra,0 @@ -38,7 +38,7 @@ ENTRY(__syscall_rt_sigaction) .set at #endif .prologue 1 - + beq a1, 0f ldl t0, 8(a1) # sa_flags lda a4, sigreturn-__syscall_rt_sigaction(pv) @@ -46,10 +46,10 @@ ENTRY(__syscall_rt_sigaction) and t0, 0x00000040, t0 # SA_SIGINFO cmovne t0, t1, a4 0: ldi v0,__NR_rt_sigaction - callsys + callsys bne a3,1f ret - + 1: #ifndef PROF br gp,2f @@ -76,3 +76,10 @@ rt_sigreturn: ldi v0,__NR_rt_sigreturn callsys .end rt_sigreturn +#else +ENTRY(__syscall_rt_sigaction) + ldgp $29,0($27) + ldi $0,ENOSYS + jmp __syscall_error +END(__syscall_rt_sigaction) +#endif |