diff options
Diffstat (limited to 'sysdeps/mips/__longjmp.c')
| -rw-r--r-- | sysdeps/mips/__longjmp.c | 84 |
1 files changed, 0 insertions, 84 deletions
diff --git a/sysdeps/mips/__longjmp.c b/sysdeps/mips/__longjmp.c deleted file mode 100644 index 750a71fd1e..0000000000 --- a/sysdeps/mips/__longjmp.c +++ /dev/null @@ -1,84 +0,0 @@ -/* Copyright (C) 1992, 1995, 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 <setjmp.h> -#include <stdlib.h> - -#undef __longjmp - -#ifndef __GNUC__ - #error This file uses GNU C extensions; you must compile with GCC. -#endif - -void -__longjmp (env, val_arg) - __jmp_buf env; - int val_arg; -{ - /* gcc 1.39.19 miscompiled the longjmp routine (as it did setjmp before - the hack around it); force it to use $a1 for the longjmp value. - Without this it saves $a1 in a register which gets clobbered - along the way. */ - register int val asm ("a1"); - - /* Pull back the floating point callee-saved registers. */ - asm volatile ("l.d $f20, %0" : : "m" (env[0].__fpregs[0])); - asm volatile ("l.d $f22, %0" : : "m" (env[0].__fpregs[1])); - asm volatile ("l.d $f24, %0" : : "m" (env[0].__fpregs[2])); - asm volatile ("l.d $f26, %0" : : "m" (env[0].__fpregs[3])); - asm volatile ("l.d $f28, %0" : : "m" (env[0].__fpregs[4])); - asm volatile ("l.d $f30, %0" : : "m" (env[0].__fpregs[5])); - - /* Get and reconstruct the floating point csr. */ - asm volatile ("lw $2, %0" : : "m" (env[0].__fpc_csr)); - asm volatile ("ctc1 $2, $31"); - - /* Get the GP. */ - asm volatile ("lw $gp, %0" : : "m" (env[0].__gp)); - - /* Get the callee-saved registers. */ - asm volatile ("lw $16, %0" : : "m" (env[0].__regs[0])); - asm volatile ("lw $17, %0" : : "m" (env[0].__regs[1])); - asm volatile ("lw $18, %0" : : "m" (env[0].__regs[2])); - asm volatile ("lw $19, %0" : : "m" (env[0].__regs[3])); - asm volatile ("lw $20, %0" : : "m" (env[0].__regs[4])); - asm volatile ("lw $21, %0" : : "m" (env[0].__regs[5])); - asm volatile ("lw $22, %0" : : "m" (env[0].__regs[6])); - asm volatile ("lw $23, %0" : : "m" (env[0].__regs[7])); - - /* Get the PC. */ - asm volatile ("lw $25, %0" : : "m" (env[0].__pc)); - - /* Restore the stack pointer and the FP. They have to be restored - last and in a single asm as gcc, depending on options used, may - use either of them to access env. */ - asm volatile ("lw $29, %0\n\t" - "lw $30, %1\n\t" : : "m" (env[0].__sp), "m" (env[0].__fp)); - -/* Give setjmp 1 if given a 0, or what they gave us if non-zero. */ - if (val == 0) - asm volatile ("li $2, 1"); - else - asm volatile ("move $2, %0" : : "r" (val)); - - asm volatile ("jr $25"); - - /* Avoid `volatile function does return' warnings. */ - for (;;); -} |