mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-11 05:40:06 +00:00
9bab980687
2001-04-18 Jakub Jelinek <jakub@redhat.com> * sysdeps/sparc/sparc64/fpu/libm-test-ulps: Update. * sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/swapcontext.c: New file. * sysdeps/unix/sysv/linux/sparc/sparc64/setcontext.S (__setcontext): Copy first word of uc_sigmask into __uc_sigmask. * sysdeps/unix/sysv/linux/sparc/sparc64/getcontext.S (__getcontext): Save uc_link around trap. Copy __uc_sigmask into first word of uc_sigmask, clear the rest. Make sure setcontext to the created context doesn't do this though. * sysdeps/unix/sysv/linux/sparc/sparc64/ucontext_i.h: New file. * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (ucontext_t): Add uc_stack and uc_sigmask, rename old uc_sigmask to __uc_sigmask in the 64bit version, make uc_sigmask __sigset_t in the 32bit version. * rt/Makefile (otherlibs): Added for static NSS. * glibcbug.in (BUGGLIBC): Send to new alias.
49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
/* Copyright (C) 2001 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Jakub Jelinek <jakub@redhat.com>.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
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 <ucontext.h>
|
|
|
|
extern int __getcontext (ucontext_t *ucp);
|
|
extern int __setcontext (const ucontext_t *ucp, int restoremask);
|
|
|
|
int
|
|
__swapcontext (ucontext_t *oucp, const ucontext_t *ucp)
|
|
{
|
|
extern void __swapcontext_ret (void);
|
|
/* Save the current machine context to oucp. */
|
|
__getcontext (oucp);
|
|
/* Modify oucp to skip the __setcontext call on reactivation. */
|
|
oucp->uc_mcontext.mc_gregs[MC_PC] = (long) __swapcontext_ret;
|
|
oucp->uc_mcontext.mc_gregs[MC_NPC] = ((long) __swapcontext_ret) + 4;
|
|
/* Restore the machine context in ucp. */
|
|
__setcontext (ucp, 1);
|
|
return 0;
|
|
}
|
|
|
|
asm (" \n\
|
|
.text \n\
|
|
.type __swapcontext_ret, #function \n\
|
|
__swapcontext_ret: \n\
|
|
return %i7 + 8 \n\
|
|
clr %o0 \n\
|
|
.size __swapcontext_ret, .-__swapcontext_ret \n\
|
|
");
|
|
|
|
weak_alias (__swapcontext, swapcontext)
|