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1998-08-29 Ulrich Drepper <drepper@cygnus.com> * sysdeps/i386/register-dump.h: Move to ... * sysdeps/unix/sysv/linux/i386/register-dump.h: ...here.
257 lines
8.7 KiB
C
257 lines
8.7 KiB
C
/* 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 Ulrich Drepper <drepper@cygnus.com>, 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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EAX: XXXXXXXX EBX: XXXXXXXX ECX: XXXXXXXX EDX: XXXXXXXX
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ESI: XXXXXXXX EDI: XXXXXXXX EBP: XXXXXXXX ESP: XXXXXXXX
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EIP: XXXXXXXX EFLAGS: XXXXXXXX
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CS: XXXX DS: XXXX ES: XXXX FS: XXXX GS: XXXX SS: XXXX
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Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX
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ESP/SIGNAL: XXXXXXXX CR2: XXXXXXXX
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FPUCW: XXXXXXXX FPUSW: XXXXXXXX TAG: XXXXXXXX
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IPOFF: XXXXXXXX CSSEL: XXXX DATAOFF: XXXXXXXX DATASEL: XXXX
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ST(0) XXXX XXXXXXXXXXXXXXXX ST(1) XXXX XXXXXXXXXXXXXXXX
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ST(2) XXXX XXXXXXXXXXXXXXXX ST(3) XXXX XXXXXXXXXXXXXXXX
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ST(4) XXXX XXXXXXXXXXXXXXXX ST(5) XXXX XXXXXXXXXXXXXXXX
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ST(6) XXXX XXXXXXXXXXXXXXXX ST(7) XXXX XXXXXXXXXXXXXXXX
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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[21][8];
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char fpregs[31][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->eax, regs[0], 8);
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hexvalue (ctx->ebx, regs[1], 8);
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hexvalue (ctx->ecx, regs[2], 8);
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hexvalue (ctx->edx, regs[3], 8);
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hexvalue (ctx->esi, regs[4], 8);
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hexvalue (ctx->edi, regs[5], 8);
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hexvalue (ctx->ebp, regs[6], 8);
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hexvalue (ctx->esp, regs[7], 8);
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hexvalue (ctx->eip, regs[8], 8);
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hexvalue (ctx->eflags, regs[9], 8);
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hexvalue (ctx->cs, regs[10], 4);
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hexvalue (ctx->ds, regs[11], 4);
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hexvalue (ctx->es, regs[12], 4);
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hexvalue (ctx->fs, regs[13], 4);
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hexvalue (ctx->gs, regs[14], 4);
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hexvalue (ctx->ss, regs[15], 4);
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hexvalue (ctx->trapno, regs[16], 8);
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hexvalue (ctx->err, regs[17], 8);
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hexvalue (ctx->oldmask, regs[18], 8);
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hexvalue (ctx->esp_at_signal, regs[19], 8);
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hexvalue (ctx->cr2, regs[20], 8);
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/* Generate the output. */
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ADD_STRING ("Register dump:\n\n EAX: ");
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ADD_MEM (regs[0], 8);
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ADD_STRING (" EBX: ");
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ADD_MEM (regs[1], 8);
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ADD_STRING (" ECX: ");
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ADD_MEM (regs[2], 8);
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ADD_STRING (" EDX: ");
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ADD_MEM (regs[3], 8);
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ADD_STRING ("\n ESI: ");
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ADD_MEM (regs[4], 8);
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ADD_STRING (" EDI: ");
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ADD_MEM (regs[5], 8);
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ADD_STRING (" EBP: ");
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ADD_MEM (regs[6], 8);
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ADD_STRING (" ESP: ");
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ADD_MEM (regs[7], 8);
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ADD_STRING ("\n\n EIP: ");
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ADD_MEM (regs[8], 8);
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ADD_STRING (" EFLAGS: ");
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ADD_MEM (regs[9], 8);
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ADD_STRING ("\n\n CS: ");
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ADD_MEM (regs[10], 4);
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ADD_STRING (" DS: ");
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ADD_MEM (regs[11], 4);
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ADD_STRING (" ES: ");
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ADD_MEM (regs[12], 4);
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ADD_STRING (" FS: ");
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ADD_MEM (regs[13], 4);
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ADD_STRING (" GS: ");
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ADD_MEM (regs[14], 4);
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ADD_STRING (" SS: ");
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ADD_MEM (regs[15], 4);
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ADD_STRING ("\n\n Trap: ");
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ADD_MEM (regs[16], 8);
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ADD_STRING (" Error: ");
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ADD_MEM (regs[17], 8);
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ADD_STRING (" OldMask: ");
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ADD_MEM (regs[18], 8);
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ADD_STRING ("\n ESP/signal: ");
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ADD_MEM (regs[19], 8);
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ADD_STRING (" CR2: ");
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ADD_MEM (regs[20], 8);
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if (ctx->fpstate != NULL)
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{
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/* Generate output for the FPU control/status registers. */
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hexvalue (ctx->fpstate->cw, fpregs[0], 8);
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hexvalue (ctx->fpstate->sw, fpregs[1], 8);
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hexvalue (ctx->fpstate->tag, fpregs[2], 8);
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hexvalue (ctx->fpstate->ipoff, fpregs[3], 8);
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hexvalue (ctx->fpstate->cssel, fpregs[4], 4);
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hexvalue (ctx->fpstate->dataoff, fpregs[5], 8);
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hexvalue (ctx->fpstate->datasel, fpregs[6], 4);
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ADD_STRING ("\n\n FPUCW: ");
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ADD_MEM (fpregs[0], 8);
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ADD_STRING (" FPUSW: ");
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ADD_MEM (fpregs[1], 8);
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ADD_STRING (" TAG: ");
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ADD_MEM (fpregs[2], 8);
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ADD_STRING ("\n IPOFF: ");
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ADD_MEM (fpregs[3], 8);
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ADD_STRING (" CSSEL: ");
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ADD_MEM (fpregs[4], 4);
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ADD_STRING (" DATAOFF: ");
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ADD_MEM (fpregs[5], 8);
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ADD_STRING (" DATASEL: ");
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ADD_MEM (fpregs[6], 4);
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/* Now the real FPU registers. */
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hexvalue (ctx->fpstate->_st[0].exponent, fpregs[7], 8);
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hexvalue (ctx->fpstate->_st[0].significand[3] << 16
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| ctx->fpstate->_st[0].significand[2], fpregs[8], 8);
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hexvalue (ctx->fpstate->_st[0].significand[1] << 16
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| ctx->fpstate->_st[0].significand[0], fpregs[9], 8);
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hexvalue (ctx->fpstate->_st[1].exponent, fpregs[10], 8);
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hexvalue (ctx->fpstate->_st[1].significand[3] << 16
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| ctx->fpstate->_st[1].significand[2], fpregs[11], 8);
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hexvalue (ctx->fpstate->_st[1].significand[1] << 16
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| ctx->fpstate->_st[1].significand[0], fpregs[12], 8);
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hexvalue (ctx->fpstate->_st[2].exponent, fpregs[13], 8);
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hexvalue (ctx->fpstate->_st[2].significand[3] << 16
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| ctx->fpstate->_st[2].significand[2], fpregs[14], 8);
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hexvalue (ctx->fpstate->_st[2].significand[1] << 16
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| ctx->fpstate->_st[2].significand[0], fpregs[15], 8);
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hexvalue (ctx->fpstate->_st[3].exponent, fpregs[16], 8);
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hexvalue (ctx->fpstate->_st[3].significand[3] << 16
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| ctx->fpstate->_st[3].significand[2], fpregs[17], 8);
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hexvalue (ctx->fpstate->_st[3].significand[1] << 16
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| ctx->fpstate->_st[3].significand[0], fpregs[18], 8);
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hexvalue (ctx->fpstate->_st[4].exponent, fpregs[19], 8);
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hexvalue (ctx->fpstate->_st[4].significand[3] << 16
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| ctx->fpstate->_st[4].significand[2], fpregs[20], 8);
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hexvalue (ctx->fpstate->_st[4].significand[1] << 16
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| ctx->fpstate->_st[4].significand[0], fpregs[21], 8);
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hexvalue (ctx->fpstate->_st[5].exponent, fpregs[22], 8);
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hexvalue (ctx->fpstate->_st[5].significand[3] << 16
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| ctx->fpstate->_st[5].significand[2], fpregs[23], 8);
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hexvalue (ctx->fpstate->_st[5].significand[1] << 16
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| ctx->fpstate->_st[5].significand[0], fpregs[24], 8);
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hexvalue (ctx->fpstate->_st[6].exponent, fpregs[25], 8);
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hexvalue (ctx->fpstate->_st[6].significand[3] << 16
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| ctx->fpstate->_st[6].significand[2], fpregs[26], 8);
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hexvalue (ctx->fpstate->_st[6].significand[1] << 16
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| ctx->fpstate->_st[6].significand[0], fpregs[27], 8);
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hexvalue (ctx->fpstate->_st[7].exponent, fpregs[28], 8);
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hexvalue (ctx->fpstate->_st[7].significand[3] << 16
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| ctx->fpstate->_st[7].significand[2], fpregs[29], 8);
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hexvalue (ctx->fpstate->_st[7].significand[1] << 16
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| ctx->fpstate->_st[7].significand[0], fpregs[30], 8);
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ADD_STRING ("\n\n ST(0) ");
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ADD_MEM (fpregs[7], 4);
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ADD_STRING (" ");
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ADD_MEM (fpregs[8], 8);
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ADD_MEM (fpregs[9], 8);
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ADD_STRING (" ST(1) ");
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ADD_MEM (fpregs[10], 4);
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ADD_STRING (" ");
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ADD_MEM (fpregs[11], 8);
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ADD_MEM (fpregs[12], 8);
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ADD_STRING ("\n ST(2) ");
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ADD_MEM (fpregs[13], 4);
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ADD_STRING (" ");
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ADD_MEM (fpregs[14], 8);
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ADD_MEM (fpregs[15], 8);
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ADD_STRING (" ST(3) ");
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ADD_MEM (fpregs[16], 4);
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ADD_STRING (" ");
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ADD_MEM (fpregs[17], 8);
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ADD_MEM (fpregs[18], 8);
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ADD_STRING ("\n ST(4) ");
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ADD_MEM (fpregs[19], 4);
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ADD_STRING (" ");
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ADD_MEM (fpregs[20], 8);
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ADD_MEM (fpregs[21], 8);
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ADD_STRING (" ST(5) ");
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ADD_MEM (fpregs[22], 4);
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ADD_STRING (" ");
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ADD_MEM (fpregs[23], 8);
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ADD_MEM (fpregs[24], 8);
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ADD_STRING ("\n ST(6) ");
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ADD_MEM (fpregs[25], 4);
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ADD_STRING (" ");
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ADD_MEM (fpregs[26], 8);
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ADD_MEM (fpregs[27], 8);
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ADD_STRING (" ST(7) ");
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ADD_MEM (fpregs[28], 4);
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ADD_STRING (" ");
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ADD_MEM (fpregs[29], 8);
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ADD_MEM (fpregs[30], 8);
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}
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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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