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setjmp.S
(485 B)
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setjmp_aarch64.S
(2.37 KB)
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setjmp_arm.S
(2.26 KB)
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setjmp_i386.S
(1.93 KB)
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setjmp_mips.S
(3.46 KB)
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setjmp_ppc.S
(3.3 KB)
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setjmp_rv64g.S
(2.86 KB)
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setjmp_s390x.S
(1.72 KB)
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setjmp_sparc64.S
(2.85 KB)
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setjmp_x86_64.S
(1.77 KB)
Editing: setjmp_mips.S
/* * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009 * The President and Fellows of Harvard College. * Copyright (c) 2017 MIPS Technologies, Inc. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include <asm/asm.h> #include <asm/regdef.h> /* * setjmp and longjmp for MIPS. */ .text .set noreorder /* * int setjmp(jmp_buf jb); * * Save the current state so we can return again from the call later * if/when longjmp is called. (If the function that called setjmp * returns before longjmp is called, the results are undefined. We * only need to save registers, not the whole contents of the stack.) */ LEAF(setjmp) /* * jmp_buf is in a0. We need to save s0-s8, sp, gp, and ra in it. * Don't store more registers without adjusting machine/setjmp.h. */ REG_S sp, 0(a0) /* save registers */ REG_S ra, 1*SZREG(a0) REG_S gp, 2*SZREG(a0) REG_S s0, 3*SZREG(a0) REG_S s1, 4*SZREG(a0) REG_S s2, 5*SZREG(a0) REG_S s3, 6*SZREG(a0) REG_S s4, 7*SZREG(a0) REG_S s5, 8*SZREG(a0) REG_S s6, 9*SZREG(a0) REG_S s7, 10*SZREG(a0) REG_S s8, 11*SZREG(a0) jr ra /* done */ move v0, zero /* return 0 (in delay slot) */ END(setjmp) /* * void longjmp(jmp_buf jb, int code); */ LEAF(longjmp) /* * jmp_buf is in a0. Return code is in a1. * We need to restore s0-s8, sp, gp, and ra from the jmp_buf. * The return code is forced to 1 if 0 is passed in. */ sltiu t0, a1, 1 /* set t0 to 1 if return code is 0... otherwise 0 */ addu a1, a1, t0 /* update the return code */ REG_L sp, 0(a0) /* restore registers */ REG_L ra, 1*SZREG(a0) REG_L gp, 2*SZREG(a0) REG_L s0, 3*SZREG(a0) REG_L s1, 4*SZREG(a0) REG_L s2, 5*SZREG(a0) REG_L s3, 6*SZREG(a0) REG_L s4, 7*SZREG(a0) REG_L s5, 8*SZREG(a0) REG_L s6, 9*SZREG(a0) REG_L s7, 10*SZREG(a0) REG_L s8, 11*SZREG(a0) jr ra /* return, to where setjmp was called from */ move v0, a1 /* set return value */ END(longjmp) #ifdef __ELF__ .section .note.GNU-stack,"",%progbits #endif
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