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Diffstat (limited to 'sysdeps/alpha/setjmp_aux.c')
| -rw-r--r-- | sysdeps/alpha/setjmp_aux.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/sysdeps/alpha/setjmp_aux.c b/sysdeps/alpha/setjmp_aux.c new file mode 100644 index 0000000000..f92517be92 --- /dev/null +++ b/sysdeps/alpha/setjmp_aux.c @@ -0,0 +1,74 @@ +/* Copyright (C) 1992, 1994 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. */ + +/* Global register decls must come before any function defn. */ + +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 + + +#include <setjmp.h> + + +/* Save the current program position in ENV and return 0. */ +int +__sigsetjmp_aux (sigjmp_buf env, int savemask, long int *sp, long int *fp) +{ + /* Save the integer registers. */ + env[0].__jmpbuf[0].__9 = r9; + env[0].__jmpbuf[0].__10 = r10; + env[0].__jmpbuf[0].__11 = r11; + env[0].__jmpbuf[0].__12 = r12; + env[0].__jmpbuf[0].__13 = r13; + env[0].__jmpbuf[0].__14 = r14; + +#if 1 /* XXX */ + /* Save the floating point registers. */ + env[0].__jmpbuf[0].__f2 = f2; + env[0].__jmpbuf[0].__f3 = f3; + env[0].__jmpbuf[0].__f4 = f4; + env[0].__jmpbuf[0].__f5 = f5; + env[0].__jmpbuf[0].__f6 = f6; + env[0].__jmpbuf[0].__f7 = f7; + env[0].__jmpbuf[0].__f8 = f8; + env[0].__jmpbuf[0].__f9 = f9; +#endif + + /* Save the return address of our caller, where longjmp will jump to. */ + env[0].__jmpbuf[0].__pc = retpc; + + /* Save the FP and SP of our caller. The __sigsetjmp entry point + simply puts these in the argument registers for us to fetch. */ + env[0].__jmpbuf[0].__fp = fp; + env[0].__jmpbuf[0].__sp = sp; + + /* Save the signal mask if requested. */ + __sigjmp_save (env, savemask); + + /* Return to the original caller of __sigsetjmp. */ + return 0; +} |