2ad7600be7
I've moved the MIPS port from ports to the main sysdeps hierarchy. Beyond the README update, the move of the files was simply git mv ports/sysdeps/mips sysdeps/mips git mv ports/sysdeps/unix/mips sysdeps/unix/mips git mv ports/sysdeps/unix/sysv/linux/mips sysdeps/unix/sysv/linux/mips and in addition to the ChangeLog entries here, I put a note at the top of ports/ChangeLog.mips similar to those in other files. Tested that disassembly of installed shared libraries for mips is the same before and after this patch (except for ld.so where paths in assertions are involved, as for arm). * sysdeps/mips: Move directory from ports/sysdeps/mips. * sysdeps/unix/mips: Move directory from ports/sysdeps/unix/mips. * sysdeps/unix/sysv/linux/mips: Move directory from ports/sysdeps/unix/sysv/linux/mips. * README: Update listing for mips-*-linux-gnu and mips64-*-linux-gnu. * sysdeps/mips: Move directory to ../sysdeps/mips. * sysdeps/unix/mips: Move directory to ../sysdeps/unix/mips. * sysdeps/unix/sysv/linux/mips: Move directory to ../sysdeps/unix/sysv/linux/mips.
98 lines
3.6 KiB
C
98 lines
3.6 KiB
C
/* Copyright (C) 1992-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Brendan Kehoe (brendan@zen.org).
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<http://www.gnu.org/licenses/>. */
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#include <setjmp.h>
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#include <sgidefs.h>
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#include <stdlib.h>
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#ifndef __GNUC__
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#error This file uses GNU C extensions; you must compile with GCC.
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#endif
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void
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__longjmp (env_arg, val_arg)
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__jmp_buf env_arg;
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int val_arg;
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{
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/* gcc 1.39.19 miscompiled the longjmp routine (as it did setjmp before
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the hack around it); force it to use $a1 for the longjmp value.
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Without this it saves $a1 in a register which gets clobbered
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along the way. */
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register struct __jmp_buf_internal_tag *env asm ("a0");
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register int val asm ("a1");
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#ifdef CHECK_SP
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register long long sp asm ("$29");
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CHECK_SP (env[0].__sp, sp, long long);
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#endif
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#ifdef __mips_hard_float
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/* Pull back the floating point callee-saved registers. */
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#if _MIPS_SIM == _ABI64
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asm volatile ("l.d $f24, %0" : : "m" (env[0].__fpregs[0]));
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asm volatile ("l.d $f25, %0" : : "m" (env[0].__fpregs[1]));
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asm volatile ("l.d $f26, %0" : : "m" (env[0].__fpregs[2]));
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asm volatile ("l.d $f27, %0" : : "m" (env[0].__fpregs[3]));
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asm volatile ("l.d $f28, %0" : : "m" (env[0].__fpregs[4]));
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asm volatile ("l.d $f29, %0" : : "m" (env[0].__fpregs[5]));
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asm volatile ("l.d $f30, %0" : : "m" (env[0].__fpregs[6]));
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asm volatile ("l.d $f31, %0" : : "m" (env[0].__fpregs[7]));
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#else
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asm volatile ("l.d $f20, %0" : : "m" (env[0].__fpregs[0]));
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asm volatile ("l.d $f22, %0" : : "m" (env[0].__fpregs[1]));
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asm volatile ("l.d $f24, %0" : : "m" (env[0].__fpregs[2]));
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asm volatile ("l.d $f26, %0" : : "m" (env[0].__fpregs[3]));
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asm volatile ("l.d $f28, %0" : : "m" (env[0].__fpregs[4]));
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asm volatile ("l.d $f30, %0" : : "m" (env[0].__fpregs[5]));
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#endif
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#endif
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/* Get the GP. */
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asm volatile ("ld $gp, %0" : : "m" (env[0].__gp));
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/* Get the callee-saved registers. */
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asm volatile ("ld $16, %0" : : "m" (env[0].__regs[0]));
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asm volatile ("ld $17, %0" : : "m" (env[0].__regs[1]));
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asm volatile ("ld $18, %0" : : "m" (env[0].__regs[2]));
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asm volatile ("ld $19, %0" : : "m" (env[0].__regs[3]));
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asm volatile ("ld $20, %0" : : "m" (env[0].__regs[4]));
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asm volatile ("ld $21, %0" : : "m" (env[0].__regs[5]));
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asm volatile ("ld $22, %0" : : "m" (env[0].__regs[6]));
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asm volatile ("ld $23, %0" : : "m" (env[0].__regs[7]));
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/* Get the PC. */
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asm volatile ("ld $31, %0" : : "m" (env[0].__pc));
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/* Restore the stack pointer and the FP. They have to be restored
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last and in a single asm as gcc, depending on options used, may
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use either of them to access env. */
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asm volatile ("ld $29, %0\n\t"
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"ld $30, %1\n\t" : : "m" (env[0].__sp), "m" (env[0].__fp));
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/* Give setjmp 1 if given a 0, or what they gave us if non-zero. */
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if (val == 0)
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asm volatile ("dli $2, 1");
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else
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asm volatile ("move $2, %0" : : "r" (val));
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asm volatile ("j $31");
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/* Avoid `volatile function does return' warnings. */
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for (;;);
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}
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