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1999-06-02 Jakub Jelinek <jj@ultra.linux.cz> * stdlib/longlong.h: Define UDIV_TIME on sparc64. * sysdeps/unix/sysv/linux/sparc/sparc64/sigpending.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/pause.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/sigsuspend.c: New file.
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/* POSIX.1 sigaction call for Linux/SPARC64.
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Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx) and
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Jakub Jelinek (jj@ultra.linux.cz).
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <string.h>
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#include <syscall.h>
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#include <sys/signal.h>
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#include <errno.h>
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#include <kernel_sigaction.h>
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/* SPARC 64bit userland requires a kernel that has rt signals anyway. */
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extern int __syscall_rt_sigaction (int, const struct kernel_sigaction *,
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struct kernel_sigaction *, unsigned long,
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size_t);
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static void __rt_sigreturn_stub (void);
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static void __sigreturn_stub (void);
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int
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__sigaction (int sig, __const struct sigaction *act, struct sigaction *oact)
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{
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int ret;
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struct kernel_sigaction kact, koact;
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unsigned long stub = 0;
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if (act)
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{
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kact.k_sa_handler = act->sa_handler;
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memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
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if (((kact.sa_flags = act->sa_flags) & SA_SIGINFO) != 0)
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stub = (unsigned long) &__rt_sigreturn_stub;
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else
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stub = (unsigned long) &__sigreturn_stub;
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stub -= 8;
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kact.sa_restorer = NULL;
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}
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/* XXX The size argument hopefully will have to be changed to the
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real size of the user-level sigset_t. */
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ret = __syscall_rt_sigaction (sig, act ? &kact : 0, oact ? &koact : 0,
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stub, _NSIG / 8);
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if (oact && ret >= 0)
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{
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oact->sa_handler = koact.k_sa_handler;
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memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t));
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oact->sa_flags = koact.sa_flags;
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oact->sa_restorer = koact.sa_restorer;
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}
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return ret;
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}
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weak_alias (__sigaction, sigaction);
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static void
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__rt_sigreturn_stub (void)
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{
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__asm__ ("mov %0, %%g1\n\t"
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"ta 0x6d\n\t"
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: /* no outputs */
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: "i" (__NR_rt_sigreturn));
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}
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static void
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__sigreturn_stub (void)
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{
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__asm__ ("mov %0, %%g1\n\t"
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"ta 0x6d\n\t"
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: /* no outputs */
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: "i" (__NR_sigreturn));
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}
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