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Merge "[MIPS] Portable versions of setjmp, sigsetjmp, ..."

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This commit is contained in:
Andrew Hsieh
2013-02-21 04:49:42 +00:00
committed by Gerrit Code Review
parent cb445fac27 183963db80
commit e36716a74c
5 changed files with 539 additions and 0 deletions
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6
ndk/sources/android/libportable/Android.mk
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@@ -57,6 +57,12 @@ libportable_arch_src_files += \
arch-mips/timer.c \
arch-mips/timerfd.c \
arch-mips/waitpid.c
libportable_arch_src_files += \
arch-mips/_setjmp.S \
arch-mips/setjmp.S \
arch-mips/sigsetjmp.S
endif
ifeq ($(TARGET_ARCH),arm)

193
ndk/sources/android/libportable/arch-mips/_setjmp.S Normal file
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@@ -0,0 +1,193 @@
/* Derived from: $OpenBSD: _setjmp.S,v 1.4 2005/08/07 16:40:15 espie Exp $ */
/*
* Copyright (c) 2002 Opsycon AB (www.opsycon.se / www.opsycon.com)
*
* 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 Opsycon AB 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 AUTHOR ``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 AUTHOR 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 <machine/asm.h>
#include <machine/regnum.h>
#include "jboffsets.h"
/*
* _setjmp, _longjmp (not restoring signal state)
*
* XXX FPSET should probably be taken from SR setting. hmmm...
* GPOFF and FRAMESIZE must be the same for both _setjmp and _longjmp!
*
*/
FRAMESZ= MKFSIZ(0,4)
GPOFF= FRAMESZ-2*REGSZ
#define FPREG64_S(FPR, OFF, BASE) \
swc1 FPR, OFF(BASE) ; \
mfhc1 t0, FPR ; \
sw t0, OFF+4(BASE) ;
#define FPREG64_L(FPR, OFF, BASE) \
lw t0, OFF+4(BASE) ; \
lw t1, OFF(BASE) ; \
mtc1 t1, FPR ; \
mthc1 t0, FPR ; \
LEAF(_setjmp_portable, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, _setjmp)
SAVE_GP(GPOFF)
.set noreorder
#if defined(__mips64)
dli v0, MAGIC__SETJMP
#else
li v0, MAGIC__SETJMP
#endif
REG_S v0, JB_MAGIC(a0)
REG_S s0, JB_S0(a0)
REG_S s1, JB_S1(a0)
REG_S s2, JB_S2(a0)
REG_S s3, JB_S3(a0)
REG_S s4, JB_S4(a0)
REG_S s5, JB_S5(a0)
REG_S s6, JB_S6(a0)
REG_S s7, JB_S7(a0)
REG_S s8, JB_S8(a0)
REG_L v0, GPOFF(sp)
REG_S v0, JB_GP(a0)
PTR_ADDU v0, sp, FRAMESZ
REG_S v0, JB_SP(a0)
REG_S ra, JB_PC(a0)
#if !defined(SOFTFLOAT)
/*
* Would be nice if we could tell if the FP registers are currently being used;
* Assume they are, and use pointer to jmp_buf in a0 to save FP registers and the
* jmp_buf.fpused flag.
*/
li v0, 1 # v0 = 1
REG_S v0, JB_FPUSED(a0) # a0->jb_fpused = v0:1
cfc1 v0, $31
#if _MIPS_FPSET == 32
FPREG64_S($f20, JB_F20, a0)
FPREG64_S($f21, JB_F21, a0)
FPREG64_S($f22, JB_F22, a0)
FPREG64_S($f23, JB_F23, a0)
FPREG64_S($f24, JB_F24, a0)
FPREG64_S($f25, JB_F25, a0)
FPREG64_S($f26, JB_F26, a0)
FPREG64_S($f27, JB_F27, a0)
FPREG64_S($f28, JB_F28, a0)
FPREG64_S($f29, JB_F29, a0)
FPREG64_S($f30, JB_F30, a0)
FPREG64_S($f31, JB_F31, a0)
#else
swc1 $f20, JB_F20(a0)
swc1 $f21, JB_F21(a0)
swc1 $f22, JB_F22(a0)
swc1 $f23, JB_F23(a0)
swc1 $f24, JB_F24(a0)
swc1 $f25, JB_F25(a0)
swc1 $f26, JB_F26(a0)
swc1 $f27, JB_F27(a0)
swc1 $f28, JB_F28(a0)
swc1 $f29, JB_F29(a0)
swc1 $f30, JB_F30(a0)
swc1 $f31, JB_F31(a0)
#endif
REG_S v0, JB_FSR(a0)
#endif /* !SOFTFLOAT */
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
j ra
move v0, zero
END(_setjmp_portable)
LEAF(_longjmp_portable, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, _longjmp)
SAVE_GP(GPOFF)
.set noreorder
REG_L v0, JB_MAGIC(a0)
bne v0, MAGIC__SETJMP, botch # jump if error
REG_L ra, JB_PC(a0)
REG_L v0, JB_FSR(a0)
REG_L s0, JB_S0(a0)
REG_L s1, JB_S1(a0)
REG_L s2, JB_S2(a0)
REG_L s3, JB_S3(a0)
REG_L s4, JB_S4(a0)
REG_L s5, JB_S5(a0)
REG_L s6, JB_S6(a0)
REG_L s7, JB_S7(a0)
REG_L s8, JB_S8(a0)
REG_L gp, JB_GP(a0)
REG_L sp, JB_SP(a0)
#if !defined(SOFTFLOAT)
ctc1 v0, $31
#if _MIPS_FPSET == 32
FPREG64_L($f20, JB_F20, a0)
FPREG64_L($f21, JB_F21, a0)
FPREG64_L($f22, JB_F22, a0)
FPREG64_L($f23, JB_F23, a0)
FPREG64_L($f24, JB_F24, a0)
FPREG64_L($f25, JB_F25, a0)
FPREG64_L($f26, JB_F26, a0)
FPREG64_L($f27, JB_F27, a0)
FPREG64_L($f28, JB_F28, a0)
FPREG64_L($f29, JB_F29, a0)
FPREG64_L($f30, JB_F30, a0)
FPREG64_L($f31, JB_F31, a0)
#else
lwc1 $f20, JB_F20(a0)
lwc1 $f21, JB_F21(a0)
lwc1 $f22, JB_F22(a0)
lwc1 $f23, JB_F23(a0)
lwc1 $f24, JB_F24(a0)
lwc1 $f25, JB_F25(a0)
lwc1 $f26, JB_F26(a0)
lwc1 $f27, JB_F27(a0)
lwc1 $f28, JB_F28(a0)
lwc1 $f29, JB_F29(a0)
lwc1 $f30, JB_F30(a0)
lwc1 $f31, JB_F31(a0)
#endif
#endif /* !SOFTFLOAT */
bne a1, zero, 1f
nop
li a1, 1 # never return 0!
1:
j ra
move v0, a1
botch:
jal longjmperror
nop
jal abort
nop
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
END(_longjmp_portable)

46
ndk/sources/android/libportable/arch-mips/jboffsets.h Normal file
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@@ -0,0 +1,46 @@
#ifndef _JBOFFSETS_H_
#define _JBOFFSETS_H_
/*
* Normally the same layout is used for saving the registers in jmp_buf
* as that used in struct sigcontext. For portability all of the registers need
* to be stored in the space available in a portable jmp_buf so this code
* packs the register together.
*/
#define JB_MASK (0*REGSZ)
#define JB_PC (1*REGSZ)
#define JB_MAGIC (2*REGSZ)
#define JB_S0 (3*REGSZ)
#define JB_S1 (4*REGSZ)
#define JB_S2 (5*REGSZ)
#define JB_S3 (6*REGSZ)
#define JB_S4 (7*REGSZ)
#define JB_S5 (8*REGSZ)
#define JB_S6 (9*REGSZ)
#define JB_S7 (10*REGSZ)
#define JB_S8 (11*REGSZ)
#define JB_GP (12*REGSZ)
#define JB_SP (13*REGSZ)
#define JB_SAVEMASK (14*REGSZ)
#define JB_FPUSED (15*REGSZ)
#define JB_FSR (16*REGSZ)
#define JB_FPBASE (18*REGSZ)
#define JB_F20 (JB_FPBASE+0*REGSZ_FP)
#define JB_F21 (JB_FPBASE+1*REGSZ_FP)
#define JB_F22 (JB_FPBASE+2*REGSZ_FP)
#define JB_F23 (JB_FPBASE+3*REGSZ_FP)
#define JB_F24 (JB_FPBASE+4*REGSZ_FP)
#define JB_F25 (JB_FPBASE+5*REGSZ_FP)
#define JB_F26 (JB_FPBASE+6*REGSZ_FP)
#define JB_F27 (JB_FPBASE+7*REGSZ_FP)
#define JB_F28 (JB_FPBASE+8*REGSZ_FP)
#define JB_F29 (JB_FPBASE+9*REGSZ_FP)
#define JB_F30 (JB_FPBASE+10*REGSZ_FP)
#define JB_F31 (JB_FPBASE+11*REGSZ_FP)
/* Use different magic numbers to avoid misuse of native vs portable contexts */
#define MAGIC_SETJMP 0xACEDBEAD
#define MAGIC__SETJMP 0xBEAD1CAB
#endif /* _JBOFFSETS_H_ */

217
ndk/sources/android/libportable/arch-mips/setjmp.S Normal file
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@@ -0,0 +1,217 @@
/* Derived from: $OpenBSD: setjmp.S,v 1.5 2005/08/07 16:40:15 espie Exp $ */
/*
* Copyright (c) 2001-2002 Opsycon AB (www.opsycon.se / www.opsycon.com)
*
* 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 Opsycon AB 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 AUTHOR ``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 AUTHOR 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 <machine/asm.h>
#include <machine/regnum.h>
#include "jboffsets.h"
/*
* setjmp, longjmp implementation for libc.
*/
FRAMESZ= MKFSIZ(2,6)
A1OFF= FRAMESZ-4*REGSZ
A0OFF= FRAMESZ-3*REGSZ
GPOFF= FRAMESZ-2*REGSZ
RAOFF= FRAMESZ-1*REGSZ
#define FPREG64_S(FPR, OFF, BASE) \
swc1 FPR, OFF(BASE) ; \
mfhc1 t0, FPR ; \
sw t0, OFF+4(BASE) ;
#define FPREG64_L(FPR, OFF, BASE) \
lw t0, OFF+4(BASE) ; \
lw t1, OFF(BASE) ; \
mtc1 t1, FPR ; \
mthc1 t0, FPR ; \
NON_LEAF(setjmp_portable, FRAMESZ, ra)
.mask 0x80000000, RAOFF
PTR_SUBU sp, FRAMESZ # allocate stack frame
SETUP_GP64(GPOFF, setjmp_portable)
SAVE_GP(GPOFF)
.set reorder
REG_S ra, RAOFF(sp) # save state
REG_S a0, A0OFF(sp)
move a0, zero # get current signal mask
jal sigblock
REG_L v1, A0OFF(sp) # v1 = jmpbuf
REG_S v0, JB_MASK(v1) # save sc_mask = sigblock(0)
REG_L a0, A0OFF(sp) # restore jmpbuf
REG_L ra, RAOFF(sp)
REG_S ra, JB_PC(a0) # sc_pc = return address
#if defined(__mips64)
dli v0, MAGIC_SETJMP
#else
li v0, MAGIC_SETJMP
#endif
REG_S v0, JB_MAGIC(a0)
REG_S s0, JB_S0(a0)
REG_S s1, JB_S1(a0)
REG_S s2, JB_S2(a0)
REG_S s3, JB_S3(a0)
REG_S s4, JB_S4(a0)
REG_S s5, JB_S5(a0)
REG_S s6, JB_S6(a0)
REG_S s7, JB_S7(a0)
REG_S s8, JB_S8(a0)
REG_L v0, GPOFF(sp)
REG_S v0, JB_GP(a0)
PTR_ADDU v0, sp, FRAMESZ
REG_S v0, JB_SP(a0)
#if !defined(SOFTFLOAT)
/*
* Would be nice if we could tell if the FP registers are currently being used.
* Assume they are, and use pointer to jmp_buf in a0 to save FP registers and the
* jmp_buf.fpused flag.
*/
li v0, 1 # v0 = 1
REG_S v0, JB_FPUSED(a0) # a0->jb_fpused = v0:1
cfc1 v0, $31
#if _MIPS_FPSET == 32
FPREG64_S($f20, JB_F20, a0)
FPREG64_S($f21, JB_F21, a0)
FPREG64_S($f22, JB_F22, a0)
FPREG64_S($f23, JB_F23, a0)
FPREG64_S($f24, JB_F24, a0)
FPREG64_S($f25, JB_F25, a0)
FPREG64_S($f26, JB_F26, a0)
FPREG64_S($f27, JB_F27, a0)
FPREG64_S($f28, JB_F28, a0)
FPREG64_S($f29, JB_F29, a0)
FPREG64_S($f30, JB_F30, a0)
FPREG64_S($f31, JB_F31, a0)
#else
swc1 $f20, JB_F20(a0)
swc1 $f21, JB_F21(a0)
swc1 $f22, JB_F22(a0)
swc1 $f23, JB_F23(a0)
swc1 $f24, JB_F24(a0)
swc1 $f25, JB_F25(a0)
swc1 $f26, JB_F26(a0)
swc1 $f27, JB_F27(a0)
swc1 $f28, JB_F28(a0)
swc1 $f29, JB_F29(a0)
swc1 $f30, JB_F30(a0)
swc1 $f31, JB_F31(a0)
#endif
REG_S v0, JB_FSR(a0)
#endif /* !SOFTFLOAT */
move v0, zero
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
j ra
botch:
jal longjmperror
jal abort
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
END(setjmp_portable)
LEAF(longjmp_portable, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, longjmp_portable)
SAVE_GP(GPOFF)
.set reorder
sw a1, A1OFF(sp)
sw a0, A0OFF(sp)
lw a0, JB_MASK(a0)
jal sigsetmask
lw a0, A0OFF(sp)
lw a1, A1OFF(sp)
.set noreorder
REG_L v0, JB_MAGIC(a0)
bne v0, MAGIC_SETJMP, botch # jump if error
REG_L ra, JB_PC(a0)
REG_L s0, JB_S0(a0)
REG_L s1, JB_S1(a0)
REG_L s2, JB_S2(a0)
REG_L s3, JB_S3(a0)
REG_L s4, JB_S4(a0)
REG_L s5, JB_S5(a0)
REG_L s6, JB_S6(a0)
REG_L s7, JB_S7(a0)
REG_L s8, JB_S8(a0)
REG_L gp, JB_GP(a0)
REG_L sp, JB_SP(a0)
#if !defined(SOFTFLOAT)
REG_L v0, JB_FSR(a0)
ctc1 v0, $31
#if _MIPS_FPSET == 32
FPREG64_L($f20, JB_F20, a0)
FPREG64_L($f21, JB_F21, a0)
FPREG64_L($f22, JB_F22, a0)
FPREG64_L($f23, JB_F23, a0)
FPREG64_L($f24, JB_F24, a0)
FPREG64_L($f25, JB_F25, a0)
FPREG64_L($f26, JB_F26, a0)
FPREG64_L($f27, JB_F27, a0)
FPREG64_L($f28, JB_F28, a0)
FPREG64_L($f29, JB_F29, a0)
FPREG64_L($f30, JB_F30, a0)
FPREG64_L($f31, JB_F31, a0)
#else
lwc1 $f20, JB_F20(a0)
lwc1 $f21, JB_F21(a0)
lwc1 $f22, JB_F22(a0)
lwc1 $f23, JB_F23(a0)
lwc1 $f24, JB_F24(a0)
lwc1 $f25, JB_F25(a0)
lwc1 $f26, JB_F26(a0)
lwc1 $f27, JB_F27(a0)
lwc1 $f28, JB_F28(a0)
lwc1 $f29, JB_F29(a0)
lwc1 $f30, JB_F30(a0)
lwc1 $f31, JB_F31(a0)
#endif
#endif /* !SOFTFLOAT */
bne a1, zero, 1f
nop
li a1, 1 # never return 0!
1:
j ra
move v0, a1
END(longjmp_portable)

77
ndk/sources/android/libportable/arch-mips/sigsetjmp.S Normal file
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@@ -0,0 +1,77 @@
/* Derived from: $OpenBSD: sigsetjmp.S,v 1.5 2005/08/07 16:40:15 espie Exp $ */
/*-
* Copyright (c) 1991, 1993, 1995,
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Havard Eidnes.
*
* 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 REGENTS 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 REGENTS 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 <machine/asm.h>
#include <machine/regnum.h>
#include "jboffsets.h"
/*
* trampolines for sigsetjmp and siglongjmp save and restore mask.
*/
FRAMESZ= MKFSIZ(1,1)
GPOFF= FRAMESZ-2*REGSZ
LEAF(sigsetjmp_portable, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, sigsetjmp)
.set reorder
REG_S a1, JB_SAVEMASK(a0) # save "savemask"
bne a1, 0x0, 1f # do saving of signal mask?
LA t9, _setjmp_portable
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
1: LA t9, setjmp_portable
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
END(sigsetjmp_portable)
LEAF(siglongjmp_portable, FRAMESZ)
PTR_SUBU sp, FRAMESZ
SETUP_GP64(GPOFF, siglongjmp_portable)
.set reorder
REG_L t0, JB_SAVEMASK(a0) # get "savemask"
bne t0, 0x0, 1f # restore signal mask?
LA t9, _longjmp_portable
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
1:
LA t9, longjmp_portable
RESTORE_GP64
PTR_ADDU sp, FRAMESZ
jr t9
END(siglongjmp_portable)