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77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/* Copyright (C) 1992, 1994, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Global register decls must come before any function defn. */
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register long int
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r9 asm ("$9"), r10 asm ("$10"), r11 asm ("$11"), r12 asm ("$12"),
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r13 asm ("$13"), r14 asm ("$14");
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register long int *fp asm ("$15"), *sp asm ("$30"), *retpc asm ("$26");
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#if 1 /* XXX */
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register double
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f2 asm ("$f2"), f3 asm ("$f3"), f4 asm ("$f4"), f5 asm ("$f5"),
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f6 asm ("$f6"), f7 asm ("$f7"), f8 asm ("$f8"), f9 asm ("$f9");
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#endif
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#include <setjmp.h>
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/* Save the current program position in ENV and return 0. */
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int
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__sigsetjmp_aux (sigjmp_buf env, int savemask, long int *sp, long int *fp)
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{
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/* Save the integer registers. */
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env[0].__jmpbuf[0].__9 = r9;
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env[0].__jmpbuf[0].__10 = r10;
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env[0].__jmpbuf[0].__11 = r11;
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env[0].__jmpbuf[0].__12 = r12;
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env[0].__jmpbuf[0].__13 = r13;
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env[0].__jmpbuf[0].__14 = r14;
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#if 1 /* XXX */
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/* Save the floating point registers. */
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env[0].__jmpbuf[0].__f2 = f2;
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env[0].__jmpbuf[0].__f3 = f3;
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env[0].__jmpbuf[0].__f4 = f4;
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env[0].__jmpbuf[0].__f5 = f5;
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env[0].__jmpbuf[0].__f6 = f6;
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env[0].__jmpbuf[0].__f7 = f7;
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env[0].__jmpbuf[0].__f8 = f8;
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env[0].__jmpbuf[0].__f9 = f9;
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#endif
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/* Save the return address of our caller, where longjmp will jump to. */
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env[0].__jmpbuf[0].__pc = retpc;
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/* Save the FP and SP of our caller. The __sigsetjmp entry point
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simply puts these in the argument registers for us to fetch. */
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env[0].__jmpbuf[0].__fp = fp;
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env[0].__jmpbuf[0].__sp = sp;
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/* Save the signal mask if requested. */
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__sigjmp_save (env, savemask);
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retpc = env[0].__jmpbuf[0].__pc; /* restore ra, ugly... */
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/* Return to the original caller of __sigsetjmp. */
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return 0;
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}
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