| /* 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 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, 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) |