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am 1cb009fb: am d3fa31a5: Merge "[MIPS] Fix setjmp signals"

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* commit '1cb009fb5eb513e838085d75617db676fcfa7aa7':
  [MIPS] Fix setjmp signals
This commit is contained in:
Elliott Hughes
2015-02-19 01:12:41 +00:00
committed by Android Git Automerger
parent 82a36f31c0 1cb009fb5e
commit 0f13eac957
2 changed files with 135 additions and 240 deletions
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368
libc/arch-mips/bionic/setjmp.S
View File

@@ -1,3 +1,30 @@
/*
* Copyright (C) 2014-2015 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
* COPYRIGHT OWNER 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.
*/
/* /*
* Copyright (c) 2001-2002 Opsycon AB (www.opsycon.se / www.opsycon.com) * Copyright (c) 2001-2002 Opsycon AB (www.opsycon.se / www.opsycon.com)
* *
@@ -94,23 +121,31 @@
#include <private/bionic_asm.h> #include <private/bionic_asm.h>
#include <machine/setjmp.h> #include <machine/setjmp.h>
/* On Mips32, jmpbuf begins with optional 4-byte filler so that /* jmpbuf is declared to users as an array of longs, which is only
* all saved FP regs are aligned on 8-byte boundary, despite this whole * 4-byte aligned in 32-bit builds. The Mips jmpbuf begins with a
* struct being mis-declared to users as an array of (4-byte) longs. * dynamically-sized 0- or 4-byte unused filler so that double-prec FP regs
* All the following offsets are then from the rounded-up base addr * are saved to 8-byte-aligned mem cells.
* All the following jmpbuf offsets are from the rounded-DOWN base addr.
*/ */
/* Fields of same size on all MIPS abis: */ /* Fields of same size on all MIPS abis: */
#define SC_MAGIC (0*4) /* 4 bytes, identify jmpbuf */ /* field: byte offset: size: */
#define SC_MASK (1*4) /* 4 bytes, saved signal mask */ /* dynam filler (0*4) 0-4 bytes of rounddown filler, DON'T TOUCH!!
#define SC_FPSR (2*4) /* 4 bytes, floating point control/status reg */ often overlays user storage!! */
/* filler2 (3*4) 4 bytes, pad to 8-byte boundary */ #define SC_MAGIC_OFFSET (1*4) /* 4 bytes, identify jmpbuf, first actual field */
#define SC_FLAG_OFFSET (2*4) /* 4 bytes, savesigs flag */
#define SC_FPSR_OFFSET (3*4) /* 4 bytes, floating point control/status reg */
/* following fields are 8-byte aligned */
#define SC_MASK_OFFSET (4*4) /* 16 bytes, mips32/mips64 version of sigset_t */
#define SC_SPARE_OFFSET (8*4) /* 8 bytes, reserved for future uses */
/* Registers that are 4-byte on mips32 o32, and 8-byte on mips64 n64 abi */ /* Registers that are 4-byte on mips32 o32, and 8-byte on mips64 n64 abi */
#define SC_REGS_SAVED 12 /* ra,gp,sp,s0-s8 */ #define SC_REGS_OFFSET (10*4) /* SC_REGS_BYTES */
#define SC_REGS (4*4) /* SC_REGS_SAVED*REGSZ bytes */ #define SC_REGS_SAVED 12 /*regs*/ /* ra,s0-s8,gp,sp */
#define SC_REGS_BYTES (SC_REGS_SAVED*REGSZ)
#define SC_REGS SC_REGS_OFFSET
/* Floating pt registers are 8-bytes on all abis, /* Double floating pt registers are 8-bytes on all abis,
* but the number of saved fp regs varies for o32/n32 versus n64 abis: * but the number of saved fp regs varies for o32/n32 versus n64 abis:
*/ */
@@ -120,22 +155,20 @@
#define SC_FPREGS_SAVED 6 /* even fp regs f20,f22,f24,f26,f28,f30 */ #define SC_FPREGS_SAVED 6 /* even fp regs f20,f22,f24,f26,f28,f30 */
#endif #endif
#define SC_FPREGS (SC_REGS + SC_REGS_SAVED*REGSZ) /* SC_FPREGS_SAVED*REGSZ_FP bytes */ #define SC_FPREGS_OFFSET (SC_REGS_OFFSET + SC_REGS_BYTES) /* SC_FPREGS_BYTES */
#define SC_FPREGS_BYTES (SC_FPREGS_SAVED*REGSZ_FP)
#define SC_FPREGS SC_FPREGS_OFFSET
#define SC_BYTES (SC_FPREGS + SC_FPREGS_SAVED*REGSZ_FP) #define SC_TOTAL_BYTES (SC_FPREGS_OFFSET + SC_FPREGS_BYTES)
#define SC_LONGS (SC_BYTES/REGSZ) #define SC_TOTAL_LONGS (SC_TOTAL_BYTES/REGSZ)
#ifdef __LP64__ #if SC_TOTAL_LONGS > _JBLEN
/* SC_LONGS is 22, so _JBLEN should be 22 or larger */ #error _JBLEN is too small
#else
/* SC_LONGS is 28, but must also allocate dynamic-roundup filler.
so _JBLEN should be 29 or larger */
#endif #endif
/* /*
* _setjmp, _longjmp (restoring signal state)
* *
* GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp! * GPOFF and FRAMESIZE must be the same for all setjmp/longjmp routines
* *
*/ */
@@ -145,30 +178,33 @@ A0OFF= FRAMESZ-3*REGSZ
GPOFF= FRAMESZ-2*REGSZ GPOFF= FRAMESZ-2*REGSZ
RAOFF= FRAMESZ-1*REGSZ RAOFF= FRAMESZ-1*REGSZ
NON_LEAF(setjmp, FRAMESZ, ra) NON_LEAF(sigsetjmp, FRAMESZ, ra)
.mask 0x80000000, RAOFF .mask 0x80000000, RAOFF
PTR_SUBU sp, FRAMESZ # allocate stack frame PTR_SUBU sp, FRAMESZ # allocate stack frame
SETUP_GP64(GPOFF, setjmp) SETUP_GP64(GPOFF, sigsetjmp)
SAVE_GP(GPOFF) SAVE_GP(GPOFF)
.set reorder .set reorder
setjmp_common:
#ifndef __LP64__ #ifndef __LP64__
addiu a0, 7 # roundup jmpbuf addr to 8-byte boundary
li t0, ~7 li t0, ~7
and a0, t0 and a0, t0 # round jmpbuf addr DOWN to 8-byte boundary
#endif #endif
sw a1, SC_FLAG_OFFSET(a0) # save savesigs flag
beqz a1, 1f # do saving of signal mask?
REG_S ra, RAOFF(sp) # save state REG_S ra, RAOFF(sp) # spill state
REG_S a0, A0OFF(sp) REG_S a0, A0OFF(sp)
move a0, zero # get current signal mask # call sigprocmask(int how ignored, sigset_t* null, sigset_t* SC_MASK(a0)):
jal sigblock LA a2, SC_MASK_OFFSET(a0) # gets current signal mask
li a0, 0 # how; ignored when new mask is null
li a1, 0 # null new mask
jal sigprocmask # get current signal mask
REG_L a0, A0OFF(sp) REG_L a0, A0OFF(sp)
REG_L ra, RAOFF(sp) REG_L ra, RAOFF(sp)
1:
REG_S v0, SC_MASK(a0) # save sc_mask = sigblock(0)
li v0, 0xACEDBADE # sigcontext magic number li v0, 0xACEDBADE # sigcontext magic number
sw v0, SC_MAGIC(a0) sw v0, SC_MAGIC_OFFSET(a0)
# callee-saved long-sized regs: # callee-saved long-sized regs:
REG_S ra, SC_REGS+0*REGSZ(a0) REG_S ra, SC_REGS+0*REGSZ(a0)
REG_S s0, SC_REGS+1*REGSZ(a0) REG_S s0, SC_REGS+1*REGSZ(a0)
@@ -181,9 +217,9 @@ NON_LEAF(setjmp, FRAMESZ, ra)
REG_S s7, SC_REGS+8*REGSZ(a0) REG_S s7, SC_REGS+8*REGSZ(a0)
REG_S s8, SC_REGS+9*REGSZ(a0) REG_S s8, SC_REGS+9*REGSZ(a0)
REG_L v0, GPOFF(sp) REG_L v0, GPOFF(sp)
REG_S v0, SC_REGS+10*REGSZ(a0) REG_S v0, SC_REGS+10*REGSZ(a0) # save gp
PTR_ADDU v0, sp, FRAMESZ PTR_ADDU v0, sp, FRAMESZ
REG_S v0, SC_REGS+11*REGSZ(a0) REG_S v0, SC_REGS+11*REGSZ(a0) # save orig sp
cfc1 v0, $31 cfc1 v0, $31
@@ -199,7 +235,7 @@ NON_LEAF(setjmp, FRAMESZ, ra)
s.d $f31, SC_FPREGS+7*REGSZ_FP(a0) s.d $f31, SC_FPREGS+7*REGSZ_FP(a0)
#else #else
# callee-saved fp regs on mips o32 ABI are # callee-saved fp regs on mips o32 ABI are
# the even-numbered fp regs $f20,$f22,...$f30 # the even-numbered double fp regs $f20,$f22,...$f30
s.d $f20, SC_FPREGS+0*REGSZ_FP(a0) s.d $f20, SC_FPREGS+0*REGSZ_FP(a0)
s.d $f22, SC_FPREGS+1*REGSZ_FP(a0) s.d $f22, SC_FPREGS+1*REGSZ_FP(a0)
s.d $f24, SC_FPREGS+2*REGSZ_FP(a0) s.d $f24, SC_FPREGS+2*REGSZ_FP(a0)
@@ -207,37 +243,68 @@ NON_LEAF(setjmp, FRAMESZ, ra)
s.d $f28, SC_FPREGS+4*REGSZ_FP(a0) s.d $f28, SC_FPREGS+4*REGSZ_FP(a0)
s.d $f30, SC_FPREGS+5*REGSZ_FP(a0) s.d $f30, SC_FPREGS+5*REGSZ_FP(a0)
#endif #endif
sw v0, SC_FPSR(a0) sw v0, SC_FPSR_OFFSET(a0)
move v0, zero move v0, zero
RESTORE_GP64 RESTORE_GP64
PTR_ADDU sp, FRAMESZ PTR_ADDU sp, FRAMESZ
j ra j ra
END(setjmp) END(sigsetjmp)
NON_LEAF(longjmp, FRAMESZ, ra)
# Alternate entry points:
NON_LEAF(setjmp, FRAMESZ, ra)
.mask 0x80000000, RAOFF .mask 0x80000000, RAOFF
PTR_SUBU sp, FRAMESZ PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, longjmp) SETUP_GP64(GPOFF, setjmp) # can't share sigsetjmp's gp code
SAVE_GP(GPOFF)
.set reorder
li a1, 1 # save/restore signals state
b setjmp_common # tail call
END(setjmp)
NON_LEAF(_setjmp, FRAMESZ, ra)
.mask 0x80000000, RAOFF
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, _setjmp) # can't share sigsetjmp's gp code
SAVE_GP(GPOFF)
.set reorder
li a1, 0 # don't save/restore signals
b setjmp_common # tail call
END(_setjmp)
NON_LEAF(siglongjmp, FRAMESZ, ra)
.mask 0x80000000, RAOFF
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, siglongjmp)
SAVE_GP(GPOFF) SAVE_GP(GPOFF)
.set reorder .set reorder
#ifndef __LP64__ #ifndef __LP64__
addiu a0, 7 # roundup jmpbuf addr to 8-byte boundary
li t0, ~7 li t0, ~7
and a0, t0 and a0, t0 # round jmpbuf addr DOWN to 8-byte boundary
#endif #endif
lw v0, SC_MAGIC_OFFSET(a0)
REG_S a1, A1OFF(sp)
REG_S a0, A0OFF(sp)
lw a0, SC_MASK(a0)
jal sigsetmask
REG_L a0, A0OFF(sp)
REG_L a1, A1OFF(sp)
lw v0, SC_MAGIC(a0)
li t0, 0xACEDBADE li t0, 0xACEDBADE
bne v0, t0, longjmp_botch # jump if error bne v0, t0, longjmp_botch # jump if error
lw t0, SC_FLAG_OFFSET(a0) # get savesigs flag
beqz t0, 1f # restore signal mask?
REG_S a1, A1OFF(sp) # temp spill
REG_S a0, A0OFF(sp)
# call sigprocmask(int how SIG_SETMASK, sigset_t* SC_MASK(a0), sigset_t* null):
LA a1, SC_MASK_OFFSET(a0) # signals being restored
li a0, 3 # mips SIG_SETMASK
li a2, 0 # null
jal sigprocmask # restore signal mask
REG_L a0, A0OFF(sp)
REG_L a1, A1OFF(sp)
1:
# callee-saved long-sized regs: # callee-saved long-sized regs:
REG_L ra, SC_REGS+0*REGSZ(a0) REG_L ra, SC_REGS+0*REGSZ(a0)
REG_L s0, SC_REGS+1*REGSZ(a0) REG_L s0, SC_REGS+1*REGSZ(a0)
@@ -252,8 +319,8 @@ NON_LEAF(longjmp, FRAMESZ, ra)
REG_L gp, SC_REGS+10*REGSZ(a0) REG_L gp, SC_REGS+10*REGSZ(a0)
REG_L sp, SC_REGS+11*REGSZ(a0) REG_L sp, SC_REGS+11*REGSZ(a0)
lw v0, SC_FPSR(a0) lw v0, SC_FPSR_OFFSET(a0)
ctc1 v0, $31 ctc1 v0, $31 # restore old fr mode before fp values
#ifdef __LP64__ #ifdef __LP64__
# callee-saved fp regs on mips n64 ABI are $f24..$f31 # callee-saved fp regs on mips n64 ABI are $f24..$f31
l.d $f24, SC_FPREGS+0*REGSZ_FP(a0) l.d $f24, SC_FPREGS+0*REGSZ_FP(a0)
@@ -266,7 +333,7 @@ NON_LEAF(longjmp, FRAMESZ, ra)
l.d $f31, SC_FPREGS+7*REGSZ_FP(a0) l.d $f31, SC_FPREGS+7*REGSZ_FP(a0)
#else #else
# callee-saved fp regs on mips o32 ABI are # callee-saved fp regs on mips o32 ABI are
# the even-numbered fp regs $f20,$f22,...$f30 # the even-numbered double fp regs $f20,$f22,...$f30
l.d $f20, SC_FPREGS+0*REGSZ_FP(a0) l.d $f20, SC_FPREGS+0*REGSZ_FP(a0)
l.d $f22, SC_FPREGS+1*REGSZ_FP(a0) l.d $f22, SC_FPREGS+1*REGSZ_FP(a0)
l.d $f24, SC_FPREGS+2*REGSZ_FP(a0) l.d $f24, SC_FPREGS+2*REGSZ_FP(a0)
@@ -278,192 +345,19 @@ NON_LEAF(longjmp, FRAMESZ, ra)
li a1, 1 # never return 0! li a1, 1 # never return 0!
1: 1:
move v0, a1 move v0, a1
j ra j ra # return to setjmp call site
longjmp_botch: longjmp_botch:
jal longjmperror jal longjmperror
jal abort jal abort
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
END(longjmp)
/*
* _setjmp, _longjmp (not restoring signal state)
*
* GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp!
*
*/
FRAMESZ= MKFSIZ(0,4)
GPOFF= FRAMESZ-2*REGSZ
LEAF(_setjmp, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, _setjmp)
SAVE_GP(GPOFF)
.set reorder
#ifndef __LP64__
addiu a0, 7 # roundup jmpbuf addr to 8-byte boundary
li t0, ~7
and a0, t0
#endif
# SC_MASK is unused here
li v0, 0xACEDBADE # sigcontext magic number
sw v0, SC_MAGIC(a0)
# callee-saved long-sized regs:
REG_S ra, SC_REGS+0*REGSZ(a0)
REG_S s0, SC_REGS+1*REGSZ(a0)
REG_S s1, SC_REGS+2*REGSZ(a0)
REG_S s2, SC_REGS+3*REGSZ(a0)
REG_S s3, SC_REGS+4*REGSZ(a0)
REG_S s4, SC_REGS+5*REGSZ(a0)
REG_S s5, SC_REGS+6*REGSZ(a0)
REG_S s6, SC_REGS+7*REGSZ(a0)
REG_S s7, SC_REGS+8*REGSZ(a0)
REG_S s8, SC_REGS+9*REGSZ(a0)
REG_L v0, GPOFF(sp)
REG_S v0, SC_REGS+10*REGSZ(a0)
PTR_ADDU v0, sp, FRAMESZ
REG_S v0, SC_REGS+11*REGSZ(a0)
cfc1 v0, $31
#ifdef __LP64__
# callee-saved fp regs on mips n64 ABI are $f24..$f31
s.d $f24, SC_FPREGS+0*REGSZ_FP(a0)
s.d $f25, SC_FPREGS+1*REGSZ_FP(a0)
s.d $f26, SC_FPREGS+2*REGSZ_FP(a0)
s.d $f27, SC_FPREGS+3*REGSZ_FP(a0)
s.d $f28, SC_FPREGS+4*REGSZ_FP(a0)
s.d $f29, SC_FPREGS+5*REGSZ_FP(a0)
s.d $f30, SC_FPREGS+6*REGSZ_FP(a0)
s.d $f31, SC_FPREGS+7*REGSZ_FP(a0)
#else
# callee-saved fp regs on mips o32 ABI are
# the even-numbered fp regs $f20,$f22,...$f30
s.d $f20, SC_FPREGS+0*REGSZ_FP(a0)
s.d $f22, SC_FPREGS+1*REGSZ_FP(a0)
s.d $f24, SC_FPREGS+2*REGSZ_FP(a0)
s.d $f26, SC_FPREGS+3*REGSZ_FP(a0)
s.d $f28, SC_FPREGS+4*REGSZ_FP(a0)
s.d $f30, SC_FPREGS+5*REGSZ_FP(a0)
#endif
sw v0, SC_FPSR(a0)
move v0, zero
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
j ra
END(_setjmp)
LEAF(_longjmp, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, _longjmp)
SAVE_GP(GPOFF)
.set reorder
#ifndef __LP64__
addiu a0, 7 # roundup jmpbuf addr to 8-byte boundary
li t0, ~7
and a0, t0
#endif
# SC_MASK is unused here
lw v0, SC_MAGIC(a0)
li t0, 0xACEDBADE
bne v0, t0, _longjmp_botch # jump if error
# callee-saved long-sized regs:
REG_L ra, SC_REGS+0*REGSZ(a0)
REG_L s0, SC_REGS+1*REGSZ(a0)
REG_L s1, SC_REGS+2*REGSZ(a0)
REG_L s2, SC_REGS+3*REGSZ(a0)
REG_L s3, SC_REGS+4*REGSZ(a0)
REG_L s4, SC_REGS+5*REGSZ(a0)
REG_L s5, SC_REGS+6*REGSZ(a0)
REG_L s6, SC_REGS+7*REGSZ(a0)
REG_L s7, SC_REGS+8*REGSZ(a0)
REG_L s8, SC_REGS+9*REGSZ(a0)
REG_L gp, SC_REGS+10*REGSZ(a0)
REG_L sp, SC_REGS+11*REGSZ(a0)
lw v0, SC_FPSR(a0)
ctc1 v0, $31
#ifdef __LP64__
# callee-saved fp regs on mips n64 ABI are $f24..$f31
l.d $f24, SC_FPREGS+0*REGSZ_FP(a0)
l.d $f25, SC_FPREGS+1*REGSZ_FP(a0)
l.d $f26, SC_FPREGS+2*REGSZ_FP(a0)
l.d $f27, SC_FPREGS+3*REGSZ_FP(a0)
l.d $f28, SC_FPREGS+4*REGSZ_FP(a0)
l.d $f29, SC_FPREGS+5*REGSZ_FP(a0)
l.d $f30, SC_FPREGS+6*REGSZ_FP(a0)
l.d $f31, SC_FPREGS+7*REGSZ_FP(a0)
#else
# callee-saved fp regs on mips o32 ABI are
# the even-numbered fp regs $f20,$f22,...$f30
l.d $f20, SC_FPREGS+0*REGSZ_FP(a0)
l.d $f22, SC_FPREGS+1*REGSZ_FP(a0)
l.d $f24, SC_FPREGS+2*REGSZ_FP(a0)
l.d $f26, SC_FPREGS+3*REGSZ_FP(a0)
l.d $f28, SC_FPREGS+4*REGSZ_FP(a0)
l.d $f30, SC_FPREGS+5*REGSZ_FP(a0)
#endif
bne a1, zero, 1f
li a1, 1 # never return 0!
1:
move v0, a1
j ra
_longjmp_botch:
jal longjmperror
jal abort
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
END(_longjmp)
/*
* trampolines for sigsetjmp and siglongjmp save and restore mask.
*
*/
FRAMESZ= MKFSIZ(1,1)
GPOFF= FRAMESZ-2*REGSZ
LEAF(sigsetjmp, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, sigsetjmp)
.set reorder
sw a1, _JBLEN*REGSZ(a0) # save "savemask"
bne a1, 0x0, 1f # do saving of signal mask?
LA t9, _setjmp
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
1: LA t9, setjmp
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
END(sigsetjmp)
LEAF(siglongjmp, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, siglongjmp)
.set reorder
lw t0, _JBLEN*REGSZ(a0) # get "savemask"
bne t0, 0x0, 1f # restore signal mask?
LA t9, _longjmp
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
1:
LA t9, longjmp
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
END(siglongjmp) END(siglongjmp)
.globl longjmp
.type longjmp, @function
.equ longjmp, siglongjmp # alias for siglongjmp
.globl _longjmp
.type _longjmp, @function
.equ _longjmp, siglongjmp # alias for siglongjmp

5
libc/arch-mips/include/machine/setjmp.h
View File

@@ -6,9 +6,10 @@
#define _MIPS_SETJMP_H_ #define _MIPS_SETJMP_H_
#ifdef __LP64__ #ifdef __LP64__
#define _JBLEN 22 /* size, in 8-byte longs, of a mips64 jmp_buf */ #define _JBLEN 25 /* size, in 8-byte longs, of a mips64 jmp_buf/sigjmp_buf */
#else #else
#define _JBLEN 29 /* size, in 4-byte longs, of a mips32 jmp_buf */ #define _JBLEN 157 /* historical size, in 4-byte longs, of a mips32 jmp_buf */
/* actual used size is 34 */
#endif #endif
#endif /* !_MIPS_SETJMP_H_ */ #endif /* !_MIPS_SETJMP_H_ */