Update
1998-10-01 Philip Blundell <pb@nexus.co.uk> * sysdeps/arm/machine-gmon.h: Correct args to mcount(). Patch from Scott Bambrough. * sysdeps/unix/sysv/linux/arm/register-dump.h: New file. * libio/libioP.h (FILEBUF_LITERAL) [! _IO_MTSAFE_IO]: Don't include the lock member. 1998-09-03 Philip Blundell <pb@nexus.co.uk> * sysdeps/arm/fpu/__longjmp.S: Cope with fussy assembler.
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Ulrich Drepper
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14
ChangeLog
14
ChangeLog
@ -1,3 +1,17 @@
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1998-10-01 Philip Blundell <pb@nexus.co.uk>
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* sysdeps/arm/machine-gmon.h: Correct args to mcount(). Patch
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from Scott Bambrough.
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* sysdeps/unix/sysv/linux/arm/register-dump.h: New file.
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* libio/libioP.h (FILEBUF_LITERAL) [! _IO_MTSAFE_IO]: Don't
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include the lock member.
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1998-09-03 Philip Blundell <pb@nexus.co.uk>
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* sysdeps/arm/fpu/__longjmp.S: Cope with fussy assembler.
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1998-10-01 Ulrich Drepper <drepper@cygnus.com>
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* timezone/zic.c: Update from tzcode1998h.
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@ -588,7 +588,7 @@ extern int _IO_vscanf __P ((const char *, _IO_va_list));
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# define FILEBUF_LITERAL(CHAIN, FLAGS, FD) \
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{ _IO_MAGIC+_IO_LINKED+_IO_IS_FILEBUF+FLAGS, \
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, CHAIN, FD, \
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0, _IO_pos_BAD, 0, 0, { 0 }, &_IO_stdfile_##FD##_lock, _IO_pos_BAD }
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0, _IO_pos_BAD, 0, 0, { 0 }, 0, _IO_pos_BAD }
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# endif
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#endif
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@ -30,7 +30,7 @@ ENTRY (__longjmp)
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movs r0, r1 /* get the return value in place */
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moveq r0, #1 /* can't let setjmp() return zero! */
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lfmia f4, 4, [ip] ! /* load the floating point regs */
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lfmfd f4, 4, [ip] ! /* load the floating point regs */
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LOADREGS(ia, ip, {v1-v6, sl, fp, sp, pc})
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END (__longjmp)
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@ -41,25 +41,27 @@ static void mcount_internal (u_long frompc, u_long selfpc)
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blind calls to _mount(), ignoring the fact that _mcount may
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clobber registers; therefore, _mcount may NOT clobber registers */
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/* if (this_fp!=0) {
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r0 = this_lr
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r1 = this_fp
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r1 = [r1-4] which is caller's fp
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r0 = this_fp
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r1 = this_lr
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r1 = [r1-4] which is caller's lr
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if (r1!=0)
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r1 = caller's lr
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call mcount_internal(this_lr, caller's_lr)
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}
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*/
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#define MCOUNT \
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void _mcount (void) \
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{ \
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__asm__("stmdb sp!, {r0, r1, r2, r3};" \
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"movs fp, fp;" \
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"moveq r0, #0;" \
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"ldrne r0, [fp, $-4];" \
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"ldrne r1, [fp, $-12];" \
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"movnes r1, r1;" \
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"ldrne r1, [r1, $-4];" \
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"movs r1, r1;" \
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"moveq r1, #0;" \
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"ldrne r1, [fp, $-4];" \
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"ldrne r0, [fp, $-12];" \
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"movnes r0, r0;" \
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"ldrne r0, [r0, $-4];" \
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"movs r0, r0;" \
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"blne mcount_internal;" \
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"ldmia sp!, {r0, r1, r2, r3}"); \
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}
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132
sysdeps/unix/sysv/linux/arm/register-dump.h
Normal file
132
sysdeps/unix/sysv/linux/arm/register-dump.h
Normal file
@ -0,0 +1,132 @@
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/* Dump registers.
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Copyright (C) 1998 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Philip Blundell <pb@nexus.co.uk>, 1998.
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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 Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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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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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <sys/uio.h>
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#include <stdio-common/_itoa.h>
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/* We will print the register dump in this format:
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R0: XXXXXXXX R1: XXXXXXXX R2: XXXXXXXX R3: XXXXXXXX
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R4: XXXXXXXX R5: XXXXXXXX R6: XXXXXXXX R7: XXXXXXXX
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R8: XXXXXXXX R9: XXXXXXXX SL: XXXXXXXX FP: XXXXXXXX
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IP: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX PC: XXXXXXXX
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CPSR: XXXXXXXX
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Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX
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*/
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static void
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hexvalue (unsigned long int value, char *buf, size_t len)
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{
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char *cp = _itoa_word (value, buf + len, 16, 0);
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while (cp > buf)
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*--cp = '0';
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}
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static void
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register_dump (int fd, struct sigcontext *ctx)
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{
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char regs[20][8];
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struct iovec iov[97];
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size_t nr = 0;
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#define ADD_STRING(str) \
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iov[nr].iov_base = (char *) str; \
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iov[nr].iov_len = strlen (str); \
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++nr
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#define ADD_MEM(str, len) \
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iov[nr].iov_base = str; \
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iov[nr].iov_len = len; \
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++nr
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/* Generate strings of register contents. */
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hexvalue (ctx->arm_r0, regs[0], 8);
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hexvalue (ctx->arm_r1, regs[1], 8);
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hexvalue (ctx->arm_r2, regs[2], 8);
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hexvalue (ctx->arm_r3, regs[3], 8);
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hexvalue (ctx->arm_r4, regs[4], 8);
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hexvalue (ctx->arm_r5, regs[5], 8);
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hexvalue (ctx->arm_r6, regs[6], 8);
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hexvalue (ctx->arm_r7, regs[7], 8);
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hexvalue (ctx->arm_r8, regs[8], 8);
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hexvalue (ctx->arm_r9, regs[9], 8);
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hexvalue (ctx->arm_r10, regs[10], 4);
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hexvalue (ctx->arm_fp, regs[11], 4);
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hexvalue (ctx->arm_ip, regs[12], 4);
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hexvalue (ctx->arm_sp, regs[13], 4);
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hexvalue (ctx->arm_lr, regs[14], 4);
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hexvalue (ctx->arm_pc, regs[15], 4);
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hexvalue (ctx->arm_cpsr, regs[16], 8);
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hexvalue (ctx->trap_no, regs[17], 8);
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hexvalue (ctx->error_code, regs[18], 8);
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hexvalue (ctx->old_mask, regs[19], 8);
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/* Generate the output. */
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ADD_STRING ("Register dump:\n\n R0: ");
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ADD_MEM (regs[0], 8);
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ADD_STRING (" R1: ");
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ADD_MEM (regs[1], 8);
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ADD_STRING (" R2: ");
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ADD_MEM (regs[2], 8);
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ADD_STRING (" R3: ");
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ADD_MEM (regs[3], 8);
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ADD_STRING ("\n R4: ");
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ADD_MEM (regs[4], 8);
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ADD_STRING (" R5: ");
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ADD_MEM (regs[5], 8);
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ADD_STRING (" R6: ");
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ADD_MEM (regs[6], 8);
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ADD_STRING (" R7: ");
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ADD_MEM (regs[7], 8);
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ADD_STRING ("\n R8: ");
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ADD_MEM (regs[8], 8);
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ADD_STRING (" R9: ");
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ADD_MEM (regs[9], 8);
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ADD_STRING (" SL: ");
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ADD_MEM (regs[10], 8);
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ADD_STRING (" FP: ");
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ADD_MEM (regs[11], 8);
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ADD_STRING ("\n IP: ");
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ADD_MEM (regs[12], 8);
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ADD_STRING (" SP: ");
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ADD_MEM (regs[13], 8);
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ADD_STRING (" LR: ");
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ADD_MEM (regs[14], 8);
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ADD_STRING (" PC: ");
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ADD_MEM (regs[15], 8);
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ADD_STRING ("\n\n CPSR: ");
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ADD_MEM (regs[16], 8);
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ADD_STRING ("\n\n Trap: ");
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ADD_MEM (regs[17], 8);
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ADD_STRING (" Error: ");
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ADD_MEM (regs[18], 8);
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ADD_STRING (" OldMask: ");
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ADD_MEM (regs[19], 8);
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ADD_STRING ("\n");
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/* Write the stuff out. */
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writev (fd, iov, nr);
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}
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#define REGISTER_DUMP register_dump (fd, &ctx)
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