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/* Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Brendan Kehoe (brendan@zen.org).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <features.h>
#include <setjmp.h>
#include <sgidefs.h>
#include <sys/asm.h>
/* This function is only called via the assembly language routine
__sigsetjmp, which arranges to pass in the stack pointer and the frame
pointer. We do things this way because it's difficult to reliably
access them in C. */
extern int __sigjmp_save (sigjmp_buf, int);
int
#if _MIPS_SIM == _MIPS_SIM_ABI64
__sigsetjmp_aux (jmp_buf env, int savemask, long sp, long fp)
#else /* O32 || N32 */
__sigsetjmp_aux (jmp_buf env, int savemask, int sp, int fp)
#endif /* O32 || N32 */
{
#if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
/* Store the floating point callee-saved registers... */
#if _MIPS_SIM == _MIPS_SIM_ABI64
asm volatile ("s.d $f24, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[0]));
asm volatile ("s.d $f25, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[1]));
asm volatile ("s.d $f26, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[2]));
asm volatile ("s.d $f27, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[3]));
asm volatile ("s.d $f28, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[4]));
asm volatile ("s.d $f29, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[5]));
asm volatile ("s.d $f30, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[6]));
asm volatile ("s.d $f31, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[7]));
#else /* O32 || N32 */
asm volatile ("s.d $f20, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[0]));
asm volatile ("s.d $f22, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[1]));
asm volatile ("s.d $f24, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[2]));
asm volatile ("s.d $f26, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[3]));
asm volatile ("s.d $f28, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[4]));
asm volatile ("s.d $f30, %0" : : "m" (env[0].__jmpbuf[0].__fpregs[5]));
#endif /* O32 || N32 */
#endif
/* .. and the PC; */
#if _MIPS_SIM == _MIPS_SIM_ABI64
asm volatile ("sd $31, %0" : : "m" (env[0].__jmpbuf[0].__pc));
#else
asm volatile ("sw $31, %0" : : "m" (env[0].__jmpbuf[0].__pc));
#endif
/* .. and the stack pointer; */
env[0].__jmpbuf[0].__sp = (void *) sp;
/* .. and the FP; it'll be in s8. */
env[0].__jmpbuf[0].__fp = (void *) fp;
/* .. and the GP; */
#if _MIPS_SIM == _MIPS_SIM_ABI64
asm volatile ("sd $gp, %0" : : "m" (env[0].__jmpbuf[0].__gp));
#else
asm volatile ("sw $gp, %0" : : "m" (env[0].__jmpbuf[0].__gp));
#endif
/* .. and the callee-saved registers; */
#if (_MIPS_SIM == _MIPS_SIM_ABI32)
asm volatile ("sw $16, %0" : : "m" (env[0].__jmpbuf[0].__regs[0]));
asm volatile ("sw $17, %0" : : "m" (env[0].__jmpbuf[0].__regs[1]));
asm volatile ("sw $18, %0" : : "m" (env[0].__jmpbuf[0].__regs[2]));
asm volatile ("sw $19, %0" : : "m" (env[0].__jmpbuf[0].__regs[3]));
asm volatile ("sw $20, %0" : : "m" (env[0].__jmpbuf[0].__regs[4]));
asm volatile ("sw $21, %0" : : "m" (env[0].__jmpbuf[0].__regs[5]));
asm volatile ("sw $22, %0" : : "m" (env[0].__jmpbuf[0].__regs[6]));
asm volatile ("sw $23, %0" : : "m" (env[0].__jmpbuf[0].__regs[7]));
#else /* N32 || N64 */
asm volatile ("sd $16, %0" : : "m" (env[0].__jmpbuf[0].__regs[0]));
asm volatile ("sd $17, %0" : : "m" (env[0].__jmpbuf[0].__regs[1]));
asm volatile ("sd $18, %0" : : "m" (env[0].__jmpbuf[0].__regs[2]));
asm volatile ("sd $19, %0" : : "m" (env[0].__jmpbuf[0].__regs[3]));
asm volatile ("sd $20, %0" : : "m" (env[0].__jmpbuf[0].__regs[4]));
asm volatile ("sd $21, %0" : : "m" (env[0].__jmpbuf[0].__regs[5]));
asm volatile ("sd $22, %0" : : "m" (env[0].__jmpbuf[0].__regs[6]));
asm volatile ("sd $23, %0" : : "m" (env[0].__jmpbuf[0].__regs[7]));
#endif /* N32 || N64 */
#if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
/* .. and finally get and reconstruct the floating point csr. */
asm ("cfc1 %0, $31" : "=r" (env[0].__jmpbuf[0].__fpc_csr));
#endif
/* Save the signal mask if requested. */
return __sigjmp_save (env, savemask);
}
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