glibc/sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
Ulrich Drepper b5bc52efe7 Update.
2003-08-30  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/generic/sysdep.h (cfi_window_save, CFI_WINDOW_SAVE): Define.
	* sysdeps/unix/sysv/linux/sparc/bits/setjmp.h: Allow file to be
	included multiple times.
	* sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Pass
	ptid, tls, ctid arguments to the kernel.
	* sysdeps/unix/sysv/linux/sparc/sparc32/getpagesize.c (__getpagesize):
	Use INTERNAL_SYSCALL instead of __syscall_getpagesize.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c
	(__libc_sigaction): Use INLINE_SYSCALL instead of
	__syscall_rt_sigaction.
	* sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
	(__syscall_getgroups, __syscall_getpagesize, __syscall__llseek,
	__syscall_setfsgid, __syscall_setfsuid, __syscall_setgid,
	__syscall_setgroups, __syscall_setregid, __syscall_setreuid,
	__syscall_ipc, __syscall_setuid, __syscall_rt_sigaction,
	__syscall_rt_sigpending, __syscall_rt_sigprocmask,
	__syscall_rt_sigqueueinfo, __syscall_rt_sigsuspend,
	__syscall_rt_sigtimedwait): Remove unneeded syscall stubs.
	* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile (sysdep_routines):
	Remove rt_sigsuspend, rt_sigprocmask, rt_sigtimedwait,
	rt_sigqueueinfo, rt_sigaction and rt_sigpending.
	* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h
	(__CLONE_SYSCALL_STRING): Define.
	* sysdeps/unix/sysv/linux/sparc/sparc32/socket.S (__socket): Add
	CFI directives.
	* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h
	(__CLONE_SYSCALL_STRING): Define.
 	* sysdeps/unix/sysv/linux/sparc/sysdep.h (INLINE_CLONE_SYSCALL):
	Define.
	* sysdeps/unix/sysv/linux/sparc/system.c: New file.

	* sunrpc/rpc/clnt.h: Remove a few __THROW.
	* sunrpc/Makefile (CFLAGS-auth_unix.c): Add -fexceptions.
	(CFLAGS-key_call.c): Likewise.
	(CFLAGS-pmap_rmt.c): Likewise.
	* sunrpc/rpc/auth.h: Remove serveral __THROW.

	(CFLAGS-rcmd.c): Likewise.
2003-08-31 17:24:25 +00:00

158 lines
4.2 KiB
C

/* POSIX.1 sigaction call for Linux/SPARC.
Copyright (C) 1997,1998,1999,2000,2002,2003 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Miguel de Icaza (miguel@nuclecu.unam.mx), 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <string.h>
#include <syscall.h>
#include <sys/signal.h>
#include <errno.h>
#include <kernel_sigaction.h>
#include <sysdep.h>
static void __rt_sigreturn_stub (void);
static void __sigreturn_stub (void);
/* The variable is shared between all wrappers around signal handling
functions which have RT equivalents. */
int __libc_missing_rt_sigs;
int
__libc_sigaction (int sig, __const struct sigaction *act,
struct sigaction *oact)
{
struct old_kernel_sigaction k_sigact, k_osigact;
int ret;
#ifdef __NR_rt_sigaction
/* First try the RT signals. */
if (!__libc_missing_rt_sigs)
{
struct kernel_sigaction kact, koact;
unsigned long stub = 0;
int saved_errno = errno;
if (act)
{
kact.k_sa_handler = act->sa_handler;
memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
if (((kact.sa_flags = act->sa_flags) & SA_SIGINFO) != 0)
stub = (unsigned long) &__rt_sigreturn_stub;
else
stub = (unsigned long) &__sigreturn_stub;
stub -= 8;
kact.sa_restorer = NULL;
}
/* XXX The size argument hopefully will have to be changed to the
real size of the user-level sigset_t. */
ret = INLINE_SYSCALL (rt_sigaction, 5, sig, act ? &kact : 0,
oact ? &koact : 0, stub, _NSIG / 8);
if (ret >= 0 || errno != ENOSYS)
{
if (oact && ret >= 0)
{
oact->sa_handler = koact.k_sa_handler;
memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t));
oact->sa_flags = koact.sa_flags;
oact->sa_restorer = koact.sa_restorer;
}
return ret;
}
__set_errno (saved_errno);
__libc_missing_rt_sigs = 1;
}
#endif
/* Magic to tell the kernel we are using "new-style" signals, in that
the signal table is not kept in userspace. Not the same as the
really-new-style rt signals. */
sig = -sig;
if (act)
{
k_sigact.k_sa_handler = act->sa_handler;
k_sigact.sa_mask = act->sa_mask.__val[0];
k_sigact.sa_flags = act->sa_flags;
k_sigact.sa_restorer = NULL;
}
{
register int r_syscallnr __asm__("%g1") = __NR_sigaction;
register int r_sig __asm__("%o0") = sig;
register struct old_kernel_sigaction *r_act __asm__("%o1");
register struct old_kernel_sigaction *r_oact __asm__("%o2");
r_act = act ? &k_sigact : NULL;
r_oact = oact ? &k_osigact : NULL;
__asm__ __volatile__("t 0x10\n\t"
"bcc 1f\n\t"
" nop\n\t"
"sub %%g0,%%o0,%%o0\n"
"1:"
: "=r"(r_sig)
: "r"(r_syscallnr), "r"(r_act), "r"(r_oact),
"0"(r_sig));
ret = r_sig;
}
if (ret >= 0)
{
if (oact)
{
oact->sa_handler = k_osigact.k_sa_handler;
oact->sa_mask.__val[0] = k_osigact.sa_mask;
oact->sa_flags = k_osigact.sa_flags;
oact->sa_restorer = NULL;
}
return ret;
}
__set_errno (-ret);
return -1;
}
libc_hidden_def (__libc_sigaction)
#ifndef LIBC_SIGACTION
weak_alias (__libc_sigaction, __sigaction);
libc_hidden_weak (__sigaction)
weak_alias (__libc_sigaction, sigaction);
#endif
static void
__rt_sigreturn_stub (void)
{
__asm__ ("mov %0, %%g1\n\t"
"ta 0x10\n\t"
: /* no outputs */
: "i" (__NR_rt_sigreturn));
}
static void
__sigreturn_stub (void)
{
__asm__ ("mov %0, %%g1\n\t"
"ta 0x10\n\t"
: /* no outputs */
: "i" (__NR_sigreturn));
}