diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc64/setjmp.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/sparc64/setjmp.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc64/setjmp.S b/sysdeps/unix/sysv/linux/sparc64/setjmp.S new file mode 100644 index 0000000000..8b88b49ac4 --- /dev/null +++ b/sysdeps/unix/sysv/linux/sparc64/setjmp.S @@ -0,0 +1,48 @@ +/* Copyright (C) 1997 Free Software Foundation, Inc. + Contributed by Richard Henderson (rth@tamu.edu). + + 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. */ + +/* __sigsetjmp is implemented in terms of the getcontext trap on + Linux/Sparc64. */ + +#include <sysdep.h> + +/* Offsets into the jmp_buf structure. */ + +#define O_mask_was_saved 512 +#define O_gregs 32 +#define O_g1 (O_gregs + 4*8) + + +/* int __sigsetjmp(jmp_buf, savemask) */ + +ENTRY(__sigsetjmp) + + /* Record whether the user is intending to save the sigmask. */ + st %o1, [%o0 + O_mask_was_saved] + + /* Load up our return value, as longjmp is going to override + the jmp_buf on its way back. */ + mov %g0, %g1 + + /* And call getcontext! */ + ta 0x6e + + retl + mov %g1, %o0 + +END(__sigsetjmp) |