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-rw-r--r--sysdeps/mips/mips64/setjmp_aux.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/sysdeps/mips/mips64/setjmp_aux.c b/sysdeps/mips/mips64/setjmp_aux.c
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+/* Copyright (C) 1996, 1997 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 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., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#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
+__sigsetjmp_aux (jmp_buf env, int savemask, int sp, int fp)
+{
+ /* Store the floating point callee-saved registers... */
+ 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]));
+
+ /* .. 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; */
+ asm volatile ("sd $gp, %0" : : "m" (env[0].__jmpbuf[0].__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]));
+
+ /* .. and finally get and reconstruct the floating point csr. */
+ asm ("cfc1 %0, $31" : "=r" (env[0].__jmpbuf[0].__fpc_csr));
+
+ /* Save the signal mask if requested. */
+ return __sigjmp_save (env, savemask);
+}