mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 14:30:06 +00:00
81 lines
3.4 KiB
C
81 lines
3.4 KiB
C
/* Copyright (C) 1996-2024 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 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <setjmp.h>
|
|
#include <sgidefs.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. */
|
|
|
|
/* Stack protection is disabled to avoid changing s0 (or any other
|
|
caller-save register) before storing it to environment.
|
|
See BZ #22624. */
|
|
|
|
int
|
|
inhibit_stack_protector
|
|
__sigsetjmp_aux (jmp_buf env, int savemask, long long sp, long long fp,
|
|
long long gp)
|
|
{
|
|
#ifdef __mips_hard_float
|
|
/* Store the floating point callee-saved registers... */
|
|
#if _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
|
|
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
|
|
#endif
|
|
|
|
/* .. and the PC; */
|
|
asm volatile ("sd $31, %0" : : "m" (env[0].__jmpbuf[0].__pc));
|
|
|
|
/* .. and the stack pointer; */
|
|
env[0].__jmpbuf[0].__sp = sp;
|
|
|
|
/* .. and the FP; it'll be in s8. */
|
|
env[0].__jmpbuf[0].__fp = fp;
|
|
|
|
/* .. and the GP; */
|
|
env[0].__jmpbuf[0].__gp = gp;
|
|
|
|
/* .. and the callee-saved registers; */
|
|
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]));
|
|
|
|
/* Save the signal mask if requested. */
|
|
return __sigjmp_save (env, savemask);
|
|
}
|