diff options
Diffstat (limited to 'sysdeps/i386')
| -rw-r--r-- | sysdeps/i386/register-dump.h | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/sysdeps/i386/register-dump.h b/sysdeps/i386/register-dump.h new file mode 100644 index 0000000000..34501fe1be --- /dev/null +++ b/sysdeps/i386/register-dump.h @@ -0,0 +1,256 @@ +/* Dump registers. + Copyright (C) 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <sys/uio.h> +#include <stdio-common/_itoa.h> + +/* We will print the register dump in this format: + + EAX: XXXXXXXX EBX: XXXXXXXX ECX: XXXXXXXX EDX: XXXXXXXX + ESI: XXXXXXXX EDI: XXXXXXXX EBP: XXXXXXXX ESP: XXXXXXXX + + EIP: XXXXXXXX EFLAGS: XXXXXXXX + + CS: XXXX DS: XXXX ES: XXXX FS: XXXX GS: XXXX SS: XXXX + + Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX + ESP/SIGNAL: XXXXXXXX CR2: XXXXXXXX + + FPUCW: XXXXXXXX FPUSW: XXXXXXXX TAG: XXXXXXXX + IPOFF: XXXXXXXX CSSEL: XXXX DATAOFF: XXXXXXXX DATASEL: XXXX + + ST(0) XXXX XXXXXXXXXXXXXXXX ST(1) XXXX XXXXXXXXXXXXXXXX + ST(2) XXXX XXXXXXXXXXXXXXXX ST(3) XXXX XXXXXXXXXXXXXXXX + ST(4) XXXX XXXXXXXXXXXXXXXX ST(5) XXXX XXXXXXXXXXXXXXXX + ST(6) XXXX XXXXXXXXXXXXXXXX ST(7) XXXX XXXXXXXXXXXXXXXX + + */ + +static void +hexvalue (unsigned long int value, char *buf, size_t len) +{ + char *cp = _itoa_word (value, buf + len, 16, 0); + while (cp > buf) + *--cp = '0'; +} + +static void +register_dump (int fd, struct sigcontext *ctx) +{ + char regs[21][8]; + char fpregs[31][8]; + struct iovec iov[97]; + size_t nr = 0; + +#define ADD_STRING(str) \ + iov[nr].iov_base = (char *) str; \ + iov[nr].iov_len = strlen (str); \ + ++nr +#define ADD_MEM(str, len) \ + iov[nr].iov_base = str; \ + iov[nr].iov_len = len; \ + ++nr + + /* Generate strings of register contents. */ + hexvalue (ctx->eax, regs[0], 8); + hexvalue (ctx->ebx, regs[1], 8); + hexvalue (ctx->ecx, regs[2], 8); + hexvalue (ctx->edx, regs[3], 8); + hexvalue (ctx->esi, regs[4], 8); + hexvalue (ctx->edi, regs[5], 8); + hexvalue (ctx->ebp, regs[6], 8); + hexvalue (ctx->esp, regs[7], 8); + hexvalue (ctx->eip, regs[8], 8); + hexvalue (ctx->eflags, regs[9], 8); + hexvalue (ctx->cs, regs[10], 4); + hexvalue (ctx->ds, regs[11], 4); + hexvalue (ctx->es, regs[12], 4); + hexvalue (ctx->fs, regs[13], 4); + hexvalue (ctx->gs, regs[14], 4); + hexvalue (ctx->ss, regs[15], 4); + hexvalue (ctx->trapno, regs[16], 8); + hexvalue (ctx->err, regs[17], 8); + hexvalue (ctx->oldmask, regs[18], 8); + hexvalue (ctx->esp_at_signal, regs[19], 8); + hexvalue (ctx->cr2, regs[20], 8); + + /* Generate the output. */ + ADD_STRING ("Register dump:\n\n EAX: "); + ADD_MEM (regs[0], 8); + ADD_STRING (" EBX: "); + ADD_MEM (regs[1], 8); + ADD_STRING (" ECX: "); + ADD_MEM (regs[2], 8); + ADD_STRING (" EDX: "); + ADD_MEM (regs[3], 8); + ADD_STRING ("\n ESI: "); + ADD_MEM (regs[4], 8); + ADD_STRING (" EDI: "); + ADD_MEM (regs[5], 8); + ADD_STRING (" EBP: "); + ADD_MEM (regs[6], 8); + ADD_STRING (" ESP: "); + ADD_MEM (regs[7], 8); + ADD_STRING ("\n\n EIP: "); + ADD_MEM (regs[8], 8); + ADD_STRING (" EFLAGS: "); + ADD_MEM (regs[9], 8); + ADD_STRING ("\n\n CS: "); + ADD_MEM (regs[10], 4); + ADD_STRING (" DS: "); + ADD_MEM (regs[11], 4); + ADD_STRING (" ES: "); + ADD_MEM (regs[12], 4); + ADD_STRING (" FS: "); + ADD_MEM (regs[13], 4); + ADD_STRING (" GS: "); + ADD_MEM (regs[14], 4); + ADD_STRING (" SS: "); + ADD_MEM (regs[15], 4); + ADD_STRING ("\n\n Trap: "); + ADD_MEM (regs[16], 8); + ADD_STRING (" Error: "); + ADD_MEM (regs[17], 8); + ADD_STRING (" OldMask: "); + ADD_MEM (regs[18], 8); + ADD_STRING ("\n ESP/signal: "); + ADD_MEM (regs[19], 8); + ADD_STRING (" CR2: "); + ADD_MEM (regs[20], 8); + + if (ctx->fpstate != NULL) + { + + /* Generate output for the FPU control/status registers. */ + hexvalue (ctx->fpstate->cw, fpregs[0], 8); + hexvalue (ctx->fpstate->sw, fpregs[1], 8); + hexvalue (ctx->fpstate->tag, fpregs[2], 8); + hexvalue (ctx->fpstate->ipoff, fpregs[3], 8); + hexvalue (ctx->fpstate->cssel, fpregs[4], 4); + hexvalue (ctx->fpstate->dataoff, fpregs[5], 8); + hexvalue (ctx->fpstate->datasel, fpregs[6], 4); + + ADD_STRING ("\n\n FPUCW: "); + ADD_MEM (fpregs[0], 8); + ADD_STRING (" FPUSW: "); + ADD_MEM (fpregs[1], 8); + ADD_STRING (" TAG: "); + ADD_MEM (fpregs[2], 8); + ADD_STRING ("\n IPOFF: "); + ADD_MEM (fpregs[3], 8); + ADD_STRING (" CSSEL: "); + ADD_MEM (fpregs[4], 4); + ADD_STRING (" DATAOFF: "); + ADD_MEM (fpregs[5], 8); + ADD_STRING (" DATASEL: "); + ADD_MEM (fpregs[6], 4); + + /* Now the real FPU registers. */ + hexvalue (ctx->fpstate->_st[0].exponent, fpregs[7], 8); + hexvalue (ctx->fpstate->_st[0].significand[3] << 16 + | ctx->fpstate->_st[0].significand[2], fpregs[8], 8); + hexvalue (ctx->fpstate->_st[0].significand[1] << 16 + | ctx->fpstate->_st[0].significand[0], fpregs[9], 8); + hexvalue (ctx->fpstate->_st[1].exponent, fpregs[10], 8); + hexvalue (ctx->fpstate->_st[1].significand[3] << 16 + | ctx->fpstate->_st[1].significand[2], fpregs[11], 8); + hexvalue (ctx->fpstate->_st[1].significand[1] << 16 + | ctx->fpstate->_st[1].significand[0], fpregs[12], 8); + hexvalue (ctx->fpstate->_st[2].exponent, fpregs[13], 8); + hexvalue (ctx->fpstate->_st[2].significand[3] << 16 + | ctx->fpstate->_st[2].significand[2], fpregs[14], 8); + hexvalue (ctx->fpstate->_st[2].significand[1] << 16 + | ctx->fpstate->_st[2].significand[0], fpregs[15], 8); + hexvalue (ctx->fpstate->_st[3].exponent, fpregs[16], 8); + hexvalue (ctx->fpstate->_st[3].significand[3] << 16 + | ctx->fpstate->_st[3].significand[2], fpregs[17], 8); + hexvalue (ctx->fpstate->_st[3].significand[1] << 16 + | ctx->fpstate->_st[3].significand[0], fpregs[18], 8); + hexvalue (ctx->fpstate->_st[4].exponent, fpregs[19], 8); + hexvalue (ctx->fpstate->_st[4].significand[3] << 16 + | ctx->fpstate->_st[4].significand[2], fpregs[20], 8); + hexvalue (ctx->fpstate->_st[4].significand[1] << 16 + | ctx->fpstate->_st[4].significand[0], fpregs[21], 8); + hexvalue (ctx->fpstate->_st[5].exponent, fpregs[22], 8); + hexvalue (ctx->fpstate->_st[5].significand[3] << 16 + | ctx->fpstate->_st[5].significand[2], fpregs[23], 8); + hexvalue (ctx->fpstate->_st[5].significand[1] << 16 + | ctx->fpstate->_st[5].significand[0], fpregs[24], 8); + hexvalue (ctx->fpstate->_st[6].exponent, fpregs[25], 8); + hexvalue (ctx->fpstate->_st[6].significand[3] << 16 + | ctx->fpstate->_st[6].significand[2], fpregs[26], 8); + hexvalue (ctx->fpstate->_st[6].significand[1] << 16 + | ctx->fpstate->_st[6].significand[0], fpregs[27], 8); + hexvalue (ctx->fpstate->_st[7].exponent, fpregs[28], 8); + hexvalue (ctx->fpstate->_st[7].significand[3] << 16 + | ctx->fpstate->_st[7].significand[2], fpregs[29], 8); + hexvalue (ctx->fpstate->_st[7].significand[1] << 16 + | ctx->fpstate->_st[7].significand[0], fpregs[30], 8); + + ADD_STRING ("\n\n ST(0) "); + ADD_MEM (fpregs[7], 4); + ADD_STRING (" "); + ADD_MEM (fpregs[8], 8); + ADD_MEM (fpregs[9], 8); + ADD_STRING (" ST(1) "); + ADD_MEM (fpregs[10], 4); + ADD_STRING (" "); + ADD_MEM (fpregs[11], 8); + ADD_MEM (fpregs[12], 8); + ADD_STRING ("\n ST(2) "); + ADD_MEM (fpregs[13], 4); + ADD_STRING (" "); + ADD_MEM (fpregs[14], 8); + ADD_MEM (fpregs[15], 8); + ADD_STRING (" ST(3) "); + ADD_MEM (fpregs[16], 4); + ADD_STRING (" "); + ADD_MEM (fpregs[17], 8); + ADD_MEM (fpregs[18], 8); + ADD_STRING ("\n ST(4) "); + ADD_MEM (fpregs[19], 4); + ADD_STRING (" "); + ADD_MEM (fpregs[20], 8); + ADD_MEM (fpregs[21], 8); + ADD_STRING (" ST(5) "); + ADD_MEM (fpregs[22], 4); + ADD_STRING (" "); + ADD_MEM (fpregs[23], 8); + ADD_MEM (fpregs[24], 8); + ADD_STRING ("\n ST(6) "); + ADD_MEM (fpregs[25], 4); + ADD_STRING (" "); + ADD_MEM (fpregs[26], 8); + ADD_MEM (fpregs[27], 8); + ADD_STRING (" ST(7) "); + ADD_MEM (fpregs[28], 4); + ADD_STRING (" "); + ADD_MEM (fpregs[29], 8); + ADD_MEM (fpregs[30], 8); + } + + ADD_STRING ("\n"); + + /* Write the stuff out. */ + writev (fd, iov, nr); +} + + +#define REGISTER_DUMP register_dump (fd, &ctx) |