diff options
Diffstat (limited to 'sysdeps/unix/bsd/sun/m68k/sigtramp.c')
| -rw-r--r-- | sysdeps/unix/bsd/sun/m68k/sigtramp.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/sysdeps/unix/bsd/sun/m68k/sigtramp.c b/sysdeps/unix/bsd/sun/m68k/sigtramp.c deleted file mode 100644 index 5a3ca3cf10..0000000000 --- a/sysdeps/unix/bsd/sun/m68k/sigtramp.c +++ /dev/null @@ -1,145 +0,0 @@ -/* Copyright (C) 1993, 1996, 1997, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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. */ - -#ifndef __GNUC__ - #error This file uses GNU C extensions; you must compile with GCC. -#endif - -/* Get the definition of `struct sigcontext'. */ -#define KERNEL -#define sigvec sun_sigvec -#define sigstack sun_sigstack -#define sigcontext sun_sigcontext -#include "/usr/include/sys/signal.h" -#undef sigvec -#undef sigstack -#undef sigcontext -#undef NSIG -#undef SIGABRT -#undef SIGCLD -#undef SV_ONSTACK -#undef SV_RESETHAND -#undef SV_INTERRUPT -#undef SA_ONSTACK -#undef SA_NOCLDSTOP -#undef SIG_ERR -#undef SIG_DFL -#undef SIG_IGN -#undef sigmask -#undef SIG_BLOCK -#undef SIG_UNBLOCK -#undef SIG_SETMASK - -#include <signal.h> -#include <stddef.h> -#include <errno.h> - -/* Defined in __sigvec.S. */ -extern int __raw_sigvec (int sig, const struct sigvec *vec, - struct sigvec *ovec); - -/* User-specified signal handlers. */ -#define mytramp 1 -#ifdef mytramp -static __sighandler_t handlers[NSIG]; -#else -#define handlers _sigfunc -extern __sighandler_t _sigfunc[]; -#endif - -#if mytramp - -/* Handler for all signals that are handled by a user-specified function. - Saves and restores the general regs %g2-%g7, the %y register, and - all the FPU regs (including %fsr), around calling the user's handler. */ -static void -trampoline (sig, code, context, addr) - int sig; - int code; - struct sigcontext *context; - void *addr; -{ - int save[4]; - - /* Save the call-clobbered registers. */ - asm volatile ("movem%.l d0-d1/a0-a1, %0" : : "m" (save[0])); - - /* XXX should save/restore FP regs */ - - /* Call the user's handler. */ - (*((void (*) (int sig, int code, struct sigcontext *context, - PTR addr)) handlers[sig])) - (sig, code, context, addr); - - /* Restore the call-clobbered registers. */ - asm volatile ("movem%.l %0, d0-d1/a0-a1" : : "g" (save[0]) : - "d0", "d1", "a0", "a1"); - - __sigreturn (context); -} - -#endif - -int -__sigvec (sig, vec, ovec) - int sig; - const struct sigvec *vec; - struct sigvec *ovec; -{ -#ifndef mytramp - extern void _sigtramp (int); -#define trampoline _sigtramp -#endif - struct sigvec myvec; - int mask; - __sighandler_t ohandler; - - if (sig <= 0 || sig >= NSIG) - { - __set_errno (EINVAL); - return -1; - } - - mask = __sigblock(sigmask(sig)); - - ohandler = handlers[sig]; - - if (vec != NULL && - vec->sv_handler != SIG_IGN && vec->sv_handler != SIG_DFL) - { - handlers[sig] = vec->sv_handler; - myvec = *vec; - myvec.sv_handler = trampoline; - vec = &myvec; - } - - if (__raw_sigvec(sig, vec, ovec) < 0) - { - int save = errno; - (void) __sigsetmask(mask); - errno = save; - return -1; - } - - if (ovec != NULL && ovec->sv_handler == trampoline) - ovec->sv_handler = ohandler; - - (void) __sigsetmask(mask); - - return 0; -} |