mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
64 lines
2.7 KiB
C
64 lines
2.7 KiB
C
/* Copyright (C) 1996-2016 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <setjmp.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. */
|
|
|
|
int __attribute__ ((nomips16))
|
|
__sigsetjmp_aux (jmp_buf env, int savemask, int sp, int fp)
|
|
{
|
|
#ifdef __mips_hard_float
|
|
/* Store the floating point callee-saved registers... */
|
|
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
|
|
|
|
/* .. and the PC; */
|
|
asm volatile ("sw $31, %0" : : "m" (env[0].__jmpbuf[0].__pc));
|
|
|
|
/* .. 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; */
|
|
asm volatile ("sw $gp, %0" : : "m" (env[0].__jmpbuf[0].__gp));
|
|
|
|
/* .. and the callee-saved registers; */
|
|
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]));
|
|
|
|
/* Save the signal mask if requested. */
|
|
return __sigjmp_save (env, savemask);
|
|
}
|