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Roland McGrath 1992-11-25 02:25:48 +00:00
parent b14d8f912b
commit d94f0508a5
1 changed files with 58 additions and 0 deletions
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sysdeps/alpha/setjmp_aux.c Normal file
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/* Copyright (C) 1992 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 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <setjmp.h>
#ifndef __GNUC__
#error This file uses GNU C extensions; you must compile with GCC.
#endif
register long int
r9 asm ("$9"), r10 asm ("$10"), r11 asm ("$11"), r12 asm ("$12"),
r13 asm ("$13"), r14 asm ("$14");
register long int *fp asm ("$15"), *sp asm ("$30"), *retpc asm ("$26");
#if 1 /* XXX */
register double
f2 asm ("$f2"), f3 asm ("$f3"), f4 asm ("$f4"), f5 asm ("$f5"),
f6 asm ("$f6"), f7 asm ("$f7"), f8 asm ("$f8"), f9 asm ("$f9");
#endif
/* Save the current program position in ENV and return 0. */
int
__setjmp (jmp_buf env)
{
/* Save the integer registers. */
env[0].__9 = r9;
env[0].__10 = r10;
env[0].__11 = r11;
env[0].__12 = r12;
env[0].__13 = r13;
env[0].__14 = r14;
/* Save the return address of our caller, where longjmp will jump to. */
env[0].__pc = retpc;
/* We lose if the compiler uses the FP in __setjmp. XXX */
env[0].__fp = fp;
env[0].__sp = sp;
return 0;
}