From b309f058cf7639951bebb86270ffbc116ea5f720 Mon Sep 17 00:00:00 2001 From: Gordana Cmiljanovic Date: Tue, 13 Jun 2017 21:34:45 +0000 Subject: [PATCH] mips: Fix store/load gp registers to/from ucontext_t General purpose registers in mcontext_t structure are 8 bytes long for both MIPS32/MIPS64. get/set/make/swap context implementations for MIPS O32 incorrectly assume that general purpose registers in this structure are 4 bytes long. This patch is fixing that. Tested for MIPS O32 LE and BE. Compared objdump of modified functions for mips n32 and mips n64. [BZ #21548] * sysdeps/unix/sysv/linux/mips/getcontext.S: Define MCONTEXT_SZGREG as 8 and use it when copying general purpose registers. * sysdeps/unix/sysv/linux/mips/makecontext.S: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/Makefile: Include new test for mips o32. * sysdeps/unix/sysv/linux/mips/mips32/bug-getcontext-mips-gp.c: Added new test for mips o32. * sysdeps/unix/sysv/linux/mips/setcontext.S: Define MCONTEXT_SZGREG as 8 and use it when copying general purpose registers. * sysdeps/unix/sysv/linux/mips/swapcontext.S: Likewise. --- ChangeLog | 14 ++++ sysdeps/unix/sysv/linux/mips/getcontext.S | 37 ++++++---- sysdeps/unix/sysv/linux/mips/makecontext.S | 27 +++++--- sysdeps/unix/sysv/linux/mips/mips32/Makefile | 4 ++ .../linux/mips/mips32/bug-getcontext-mips-gp.c | 63 +++++++++++++++++ sysdeps/unix/sysv/linux/mips/setcontext.S | 51 ++++++++------ sysdeps/unix/sysv/linux/mips/swapcontext.S | 79 ++++++++++++---------- 7 files changed, 194 insertions(+), 81 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/mips/mips32/bug-getcontext-mips-gp.c diff --git a/ChangeLog b/ChangeLog index c86ab8781c..1715e9104a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,17 @@ +2017-06-13 Gordana Cmiljanovic + + [BZ #21548] + * sysdeps/unix/sysv/linux/mips/getcontext.S: Define MCONTEXT_SZGREG as + 8 and use it when copying general purpose registers. + * sysdeps/unix/sysv/linux/mips/makecontext.S: Likewise. + * sysdeps/unix/sysv/linux/mips/mips32/Makefile: Include new test for + mips o32. + * sysdeps/unix/sysv/linux/mips/mips32/bug-getcontext-mips-gp.c: Added + new test for mips o32. + * sysdeps/unix/sysv/linux/mips/setcontext.S: Define MCONTEXT_SZGREG as + 8 and use it when copying general purpose registers. + * sysdeps/unix/sysv/linux/mips/swapcontext.S: Likewise. + 2017-06-13 Florian Weimer * configure.ac (find_cxx_header): Suppress compiler error message. diff --git a/sysdeps/unix/sysv/linux/mips/getcontext.S b/sysdeps/unix/sysv/linux/mips/getcontext.S index 64de2ebf2e..aa6f45e68c 100644 --- a/sysdeps/unix/sysv/linux/mips/getcontext.S +++ b/sysdeps/unix/sysv/linux/mips/getcontext.S @@ -38,6 +38,12 @@ MASK = 0x10000000 #endif FRAMESZ = ((LOCALSZ * SZREG) + ALSZ) & ALMASK GPOFF = FRAMESZ - (1 * SZREG) +MCONTEXT_GREGSZ = 8 +#if _MIPS_SIM == _ABIO32 && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +MCONTEXT_GREGOFF = 4 +#else +MCONTEXT_GREGOFF = 0 +#endif NESTED (__getcontext, FRAMESZ, ra) .mask MASK, 0 @@ -74,23 +80,24 @@ NESTED (__getcontext, FRAMESZ, ra) /* Store a magic flag. */ li v1, 1 - REG_S v1, (0 * SZREG + MCONTEXT_GREGS)(a0) /* zero */ - - REG_S s0, (16 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s1, (17 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s2, (18 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s3, (19 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s4, (20 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s5, (21 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s6, (22 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s7, (23 * SZREG + MCONTEXT_GREGS)(a0) + /* zero */ + REG_S v1, (MCONTEXT_GREGOFF + 0 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + + REG_S s0, (MCONTEXT_GREGOFF + 16 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s1, (MCONTEXT_GREGOFF + 17 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s2, (MCONTEXT_GREGOFF + 18 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s3, (MCONTEXT_GREGOFF + 19 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s4, (MCONTEXT_GREGOFF + 20 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s5, (MCONTEXT_GREGOFF + 21 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s6, (MCONTEXT_GREGOFF + 22 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s7, (MCONTEXT_GREGOFF + 23 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) #if ! defined (__PIC__) || _MIPS_SIM != _ABIO32 - REG_S _GP, (28 * SZREG + MCONTEXT_GREGS)(a0) + REG_S _GP, (MCONTEXT_GREGOFF + 28 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) #endif - REG_S _SP, (29 * SZREG + MCONTEXT_GREGS)(a0) - REG_S fp, (30 * SZREG + MCONTEXT_GREGS)(a0) - REG_S ra, (31 * SZREG + MCONTEXT_GREGS)(a0) - REG_S ra, MCONTEXT_PC(a0) + REG_S _SP, (MCONTEXT_GREGOFF + 29 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S fp, (MCONTEXT_GREGOFF + 30 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S ra, (MCONTEXT_GREGOFF + 31 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S ra, (MCONTEXT_GREGOFF + MCONTEXT_PC)(a0) #ifdef __mips_hard_float # if _MIPS_SIM == _ABI64 diff --git a/sysdeps/unix/sysv/linux/mips/makecontext.S b/sysdeps/unix/sysv/linux/mips/makecontext.S index 5c3af04491..6bbdc26f5d 100644 --- a/sysdeps/unix/sysv/linux/mips/makecontext.S +++ b/sysdeps/unix/sysv/linux/mips/makecontext.S @@ -53,6 +53,12 @@ NARGREGS = 8 A3OFF = FRAMESZ + (3 * SZREG) /* caller-allocated */ NARGREGS = 4 #endif +MCONTEXT_GREGSZ = 8 +#if _MIPS_SIM == _ABIO32 && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +MCONTEXT_GREGOFF = 4 +#else +MCONTEXT_GREGOFF = 0 +#endif NESTED (__makecontext, FRAMESZ, ra) .mask MASK, -(ARGSZ * SZREG) @@ -89,7 +95,8 @@ NESTED (__makecontext, FRAMESZ, ra) /* Store a magic flag. */ li v1, 1 - REG_S v1, (0 * SZREG + MCONTEXT_GREGS)(a0) /* zero */ + /* zero */ + REG_S v1, (MCONTEXT_GREGOFF + 0 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) /* Set up the stack. */ PTR_L t0, STACK_SP(a0) @@ -100,14 +107,14 @@ NESTED (__makecontext, FRAMESZ, ra) blez a2, 2f /* no arguments */ /* Store register arguments. */ - PTR_ADDIU t2, a0, MCONTEXT_GREGS + 4 * SZREG + PTR_ADDIU t2, a0, MCONTEXT_GREGS + 4 * MCONTEXT_GREGSZ + MCONTEXT_GREGOFF move t3, zero 0: addiu t3, 1 REG_L v1, (t1) PTR_ADDIU t1, SZREG REG_S v1, (t2) - PTR_ADDIU t2, SZREG + PTR_ADDIU t2, MCONTEXT_GREGSZ bgeu t3, a2, 2f /* all done */ bltu t3, NARGREGS, 0b /* next */ @@ -138,13 +145,17 @@ NESTED (__makecontext, FRAMESZ, ra) #else PTR_LA t9, 99f #endif - REG_S t0, (29 * SZREG + MCONTEXT_GREGS)(a0) /* sp */ - REG_S v1, (16 * SZREG + MCONTEXT_GREGS)(a0) /* s0 */ + /* sp */ + REG_S t0, (MCONTEXT_GREGOFF + 29 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + /* s0 */ + REG_S v1, (MCONTEXT_GREGOFF + 16 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) #ifdef __PIC__ - REG_S gp, (17 * SZREG + MCONTEXT_GREGS)(a0) /* s1 */ + /* s1 */ + REG_S gp, (MCONTEXT_GREGOFF + 17 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) #endif - REG_S t9, (31 * SZREG + MCONTEXT_GREGS)(a0) /* ra */ - REG_S a1, MCONTEXT_PC(a0) + /* ra */ + REG_S t9, (MCONTEXT_GREGOFF + 31 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S a1, (MCONTEXT_GREGOFF + MCONTEXT_PC)(a0) #ifdef __PIC__ RESTORE_GP64_STACK diff --git a/sysdeps/unix/sysv/linux/mips/mips32/Makefile b/sysdeps/unix/sysv/linux/mips/mips32/Makefile index 9439d29dea..33b461500c 100644 --- a/sysdeps/unix/sysv/linux/mips/mips32/Makefile +++ b/sysdeps/unix/sysv/linux/mips/mips32/Makefile @@ -2,3 +2,7 @@ ifeq ($(subdir),conform) # For bugs 17786 and 21278. conformtest-xfail-conds += mips-o32-linux endif + +ifeq ($(subdir),stdlib) +tests += bug-getcontext-mips-gp +endif diff --git a/sysdeps/unix/sysv/linux/mips/mips32/bug-getcontext-mips-gp.c b/sysdeps/unix/sysv/linux/mips/mips32/bug-getcontext-mips-gp.c new file mode 100644 index 0000000000..9327f172a5 --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/mips32/bug-getcontext-mips-gp.c @@ -0,0 +1,63 @@ +/* Tests register values retreived by getcontext() for mips o32. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, see + . */ + +#include +#include +#include +#include +#include + + +#if !defined __mips__ || _MIPS_SIM != _ABIO32 +# error "MIPS O32 specific test." +#endif + +#define SP_REG 29 + +static int +do_test (void) +{ + ucontext_t ctx; + memset (&ctx, 0, sizeof (ctx)); + int status = getcontext (&ctx); + if (status) + { + printf ("\ngetcontext() failed, errno: %d.\n", errno); + return 1; + } + + if (ctx.uc_mcontext.gregs[SP_REG] == 0 + || ctx.uc_mcontext.gregs[SP_REG] > 0xffffffff) + { + printf ("\nError getcontext(): invalid $sp = 0x%llx.\n", + ctx.uc_mcontext.gregs[SP_REG]); + return 1; + } + + if (ctx.uc_mcontext.pc == 0 + || ctx.uc_mcontext.pc > 0xffffffff) + { + printf ("\nError getcontext(): invalid ctx.uc_mcontext.pc = 0x%llx.\n", + ctx.uc_mcontext.pc); + return 1; + } + + return 0; +} + +#include diff --git a/sysdeps/unix/sysv/linux/mips/setcontext.S b/sysdeps/unix/sysv/linux/mips/setcontext.S index 4e363d98d0..4f52b8d460 100644 --- a/sysdeps/unix/sysv/linux/mips/setcontext.S +++ b/sysdeps/unix/sysv/linux/mips/setcontext.S @@ -47,6 +47,12 @@ A0OFF = FRAMESZ - (1 * SZREG) /* callee-allocated */ #else A0OFF = FRAMESZ + (0 * SZREG) /* caller-allocated */ #endif +MCONTEXT_GREGSZ = 8 +#if _MIPS_SIM == _ABIO32 && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +MCONTEXT_GREGOFF = 4 +#else +MCONTEXT_GREGOFF = 0 +#endif NESTED (__setcontext, FRAMESZ, ra) .mask MASK, -(ARGSZ * SZREG) @@ -73,7 +79,8 @@ NESTED (__setcontext, FRAMESZ, ra) /* Check for the magic flag. */ li v0, 1 - REG_L v1, (0 * SZREG + MCONTEXT_GREGS)(a0) /* zero */ + /* zero */ + REG_L v1, (MCONTEXT_GREGOFF + 0 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) bne v0, v1, 98f REG_S a0, A0OFF(sp) @@ -117,32 +124,32 @@ NESTED (__setcontext, FRAMESZ, ra) /* Note the contents of argument registers will be random unless makecontext() has been called. */ - REG_L a0, (4 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a1, (5 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a2, (6 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a3, (7 * SZREG + MCONTEXT_GREGS)(v0) + REG_L a0, (MCONTEXT_GREGOFF + 4 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a1, (MCONTEXT_GREGOFF + 5 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a2, (MCONTEXT_GREGOFF + 6 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a3, (MCONTEXT_GREGOFF + 7 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) #if _MIPS_SIM != _ABIO32 - REG_L a4, (8 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a5, (9 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a6, (10 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a7, (11 * SZREG + MCONTEXT_GREGS)(v0) + REG_L a4, (MCONTEXT_GREGOFF + 8 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a5, (MCONTEXT_GREGOFF + 9 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a6, (MCONTEXT_GREGOFF + 10 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a7, (MCONTEXT_GREGOFF + 11 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) #endif - REG_L s0, (16 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s1, (17 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s2, (18 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s3, (19 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s4, (20 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s5, (21 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s6, (22 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s7, (23 * SZREG + MCONTEXT_GREGS)(v0) + REG_L s0, (MCONTEXT_GREGOFF + 16 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s1, (MCONTEXT_GREGOFF + 17 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s2, (MCONTEXT_GREGOFF + 18 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s3, (MCONTEXT_GREGOFF + 19 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s4, (MCONTEXT_GREGOFF + 20 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s5, (MCONTEXT_GREGOFF + 21 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s6, (MCONTEXT_GREGOFF + 22 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s7, (MCONTEXT_GREGOFF + 23 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) #if ! defined (__PIC__) || _MIPS_SIM != _ABIO32 - REG_L gp, (28 * SZREG + MCONTEXT_GREGS)(v0) + REG_L gp, (MCONTEXT_GREGOFF + 28 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) #endif - REG_L sp, (29 * SZREG + MCONTEXT_GREGS)(v0) - REG_L fp, (30 * SZREG + MCONTEXT_GREGS)(v0) - REG_L ra, (31 * SZREG + MCONTEXT_GREGS)(v0) - REG_L t9, MCONTEXT_PC(v0) + REG_L sp, (MCONTEXT_GREGOFF + 29 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L fp, (MCONTEXT_GREGOFF + 30 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L ra, (MCONTEXT_GREGOFF + 31 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L t9, (MCONTEXT_GREGOFF + MCONTEXT_PC)(v0) move v0, zero jr t9 diff --git a/sysdeps/unix/sysv/linux/mips/swapcontext.S b/sysdeps/unix/sysv/linux/mips/swapcontext.S index fde6e5e48a..ff63b3d9c8 100644 --- a/sysdeps/unix/sysv/linux/mips/swapcontext.S +++ b/sysdeps/unix/sysv/linux/mips/swapcontext.S @@ -47,6 +47,12 @@ A1OFF = FRAMESZ - (1 * SZREG) /* callee-allocated */ #else A1OFF = FRAMESZ + (1 * SZREG) /* caller-allocated */ #endif +MCONTEXT_GREGSZ = 8 +#if _MIPS_SIM == _ABIO32 && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ +MCONTEXT_GREGOFF = 4 +#else +MCONTEXT_GREGOFF = 0 +#endif NESTED (__swapcontext, FRAMESZ, ra) .mask MASK, -(ARGSZ * SZREG) @@ -83,23 +89,24 @@ NESTED (__swapcontext, FRAMESZ, ra) /* Store a magic flag. */ li v1, 1 - REG_S v1, (0 * SZREG + MCONTEXT_GREGS)(a0) /* zero */ - - REG_S s0, (16 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s1, (17 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s2, (18 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s3, (19 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s4, (20 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s5, (21 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s6, (22 * SZREG + MCONTEXT_GREGS)(a0) - REG_S s7, (23 * SZREG + MCONTEXT_GREGS)(a0) + /* zero */ + REG_S v1, (MCONTEXT_GREGOFF + 0 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + + REG_S s0, (MCONTEXT_GREGOFF + 16 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s1, (MCONTEXT_GREGOFF + 17 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s2, (MCONTEXT_GREGOFF + 18 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s3, (MCONTEXT_GREGOFF + 19 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s4, (MCONTEXT_GREGOFF + 20 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s5, (MCONTEXT_GREGOFF + 21 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s6, (MCONTEXT_GREGOFF + 22 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S s7, (MCONTEXT_GREGOFF + 23 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) #if ! defined (__PIC__) || _MIPS_SIM != _ABIO32 - REG_S _GP, (28 * SZREG + MCONTEXT_GREGS)(a0) + REG_S _GP, (MCONTEXT_GREGOFF + 28 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) #endif - REG_S _SP, (29 * SZREG + MCONTEXT_GREGS)(a0) - REG_S fp, (30 * SZREG + MCONTEXT_GREGS)(a0) - REG_S ra, (31 * SZREG + MCONTEXT_GREGS)(a0) - REG_S ra, MCONTEXT_PC(a0) + REG_S _SP, (MCONTEXT_GREGOFF + 29 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S fp, (MCONTEXT_GREGOFF + 30 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S ra, (MCONTEXT_GREGOFF + 31 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(a0) + REG_S ra, (MCONTEXT_GREGOFF + MCONTEXT_PC)(a0) #ifdef __mips_hard_float # if _MIPS_SIM == _ABI64 @@ -167,32 +174,32 @@ NESTED (__swapcontext, FRAMESZ, ra) /* Note the contents of argument registers will be random unless makecontext() has been called. */ - REG_L a0, (4 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a1, (5 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a2, (6 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a3, (7 * SZREG + MCONTEXT_GREGS)(v0) + REG_L a0, (MCONTEXT_GREGOFF + 4 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a1, (MCONTEXT_GREGOFF + 5 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a2, (MCONTEXT_GREGOFF + 6 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a3, (MCONTEXT_GREGOFF + 7 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) #if _MIPS_SIM != _ABIO32 - REG_L a4, (8 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a5, (9 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a6, (10 * SZREG + MCONTEXT_GREGS)(v0) - REG_L a7, (11 * SZREG + MCONTEXT_GREGS)(v0) + REG_L a4, (MCONTEXT_GREGOFF + 8 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a5, (MCONTEXT_GREGOFF + 9 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a6, (MCONTEXT_GREGOFF + 10 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L a7, (MCONTEXT_GREGOFF + 11 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) #endif - REG_L s0, (16 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s1, (17 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s2, (18 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s3, (19 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s4, (20 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s5, (21 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s6, (22 * SZREG + MCONTEXT_GREGS)(v0) - REG_L s7, (23 * SZREG + MCONTEXT_GREGS)(v0) + REG_L s0, (MCONTEXT_GREGOFF + 16 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s1, (MCONTEXT_GREGOFF + 17 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s2, (MCONTEXT_GREGOFF + 18 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s3, (MCONTEXT_GREGOFF + 19 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s4, (MCONTEXT_GREGOFF + 20 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s5, (MCONTEXT_GREGOFF + 21 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s6, (MCONTEXT_GREGOFF + 22 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L s7, (MCONTEXT_GREGOFF + 23 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) #if ! defined (__PIC__) || _MIPS_SIM != _ABIO32 - REG_L gp, (28 * SZREG + MCONTEXT_GREGS)(v0) + REG_L gp, (MCONTEXT_GREGOFF + 28 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) #endif - REG_L sp, (29 * SZREG + MCONTEXT_GREGS)(v0) - REG_L fp, (30 * SZREG + MCONTEXT_GREGS)(v0) - REG_L ra, (31 * SZREG + MCONTEXT_GREGS)(v0) - REG_L t9, MCONTEXT_PC(v0) + REG_L sp, (MCONTEXT_GREGOFF + 29 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L fp, (MCONTEXT_GREGOFF + 30 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L ra, (MCONTEXT_GREGOFF + 31 * MCONTEXT_GREGSZ + MCONTEXT_GREGS)(v0) + REG_L t9, (MCONTEXT_GREGOFF + MCONTEXT_PC)(v0) move v0, zero jr t9 -- 2.11.4.GIT