| /* Dump registers. |
| Copyright (C) 2001-2014 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sys/uio.h> |
| #include <_itoa.h> |
| |
| /* We will print the register dump in this format: |
| |
| RAX: XXXXXXXXXXXXXXXX RBX: XXXXXXXXXXXXXXXX RCX: XXXXXXXXXXXXXXXX |
| RDX: XXXXXXXXXXXXXXXX RSI: XXXXXXXXXXXXXXXX RDI: XXXXXXXXXXXXXXXX |
| RBP: XXXXXXXXXXXXXXXX R8 : XXXXXXXXXXXXXXXX R9 : XXXXXXXXXXXXXXXX |
| R10: XXXXXXXXXXXXXXXX R11: XXXXXXXXXXXXXXXX R12: XXXXXXXXXXXXXXXX |
| R13: XXXXXXXXXXXXXXXX R14: XXXXXXXXXXXXXXXX R15: XXXXXXXXXXXXXXXX |
| RSP: XXXXXXXXXXXXXXXX |
| |
| RIP: XXXXXXXXXXXXXXXX EFLAGS: XXXXXXXX |
| |
| CS: XXXX DS: XXXX ES: XXXX FS: XXXX GS: XXXX |
| |
| Trap: XXXXXXXX Error: XXXXXXXX OldMask: XXXXXXXX |
| RSP/SIGNAL: XXXXXXXXXXXXXXXX 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 |
| |
| mxcsr: XXXX |
| XMM0 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XMM1 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| XMM2 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XMM3 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| XMM4 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XMM5 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| XMM6 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XMM7 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| XMM8 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XMM9 : XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| XMM10: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XMM11: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| XMM12: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XMM13: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| XMM14: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XMM15: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX |
| |
| */ |
| |
| 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 ucontext *ctx) |
| { |
| char regs[25][16]; |
| char fpregs[30][8]; |
| char xmmregs[16][32]; |
| struct iovec iov[147]; |
| size_t nr = 0; |
| int i; |
| |
| #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->uc_mcontext.gregs[REG_RAX], regs[0], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_RBX], regs[1], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_RCX], regs[2], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_RDX], regs[3], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_RSI], regs[4], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_RDI], regs[5], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_RBP], regs[6], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_R8], regs[7], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_R9], regs[8], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_R10], regs[9], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_R11], regs[10], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_R12], regs[11], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_R13], regs[12], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_R14], regs[13], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_R15], regs[14], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_RSP], regs[15], 16); |
| hexvalue (ctx->uc_mcontext.gregs[REG_RIP], regs[16], 16); |
| |
| hexvalue (ctx->uc_mcontext.gregs[REG_EFL], regs[17], 8); |
| hexvalue (ctx->uc_mcontext.gregs[REG_CSGSFS] & 0xffff, regs[18], 4); |
| hexvalue ((ctx->uc_mcontext.gregs[REG_CSGSFS] >> 16) & 0xffff, regs[19], 4); |
| hexvalue ((ctx->uc_mcontext.gregs[REG_CSGSFS] >> 32) & 0xffff, regs[20], 4); |
| /* hexvalue (ctx->ss, regs[23], 4); */ |
| hexvalue (ctx->uc_mcontext.gregs[REG_TRAPNO], regs[21], 8); |
| hexvalue (ctx->uc_mcontext.gregs[REG_ERR], regs[22], 8); |
| hexvalue (ctx->uc_mcontext.gregs[REG_OLDMASK], regs[23], 8); |
| hexvalue (ctx->uc_mcontext.gregs[REG_CR2], regs[24], 8); |
| |
| /* Generate the output. */ |
| ADD_STRING ("Register dump:\n\n RAX: "); |
| ADD_MEM (regs[0], 16); |
| ADD_STRING (" RBX: "); |
| ADD_MEM (regs[1], 16); |
| ADD_STRING (" RCX: "); |
| ADD_MEM (regs[2], 16); |
| ADD_STRING ("\n RDX: "); |
| ADD_MEM (regs[3], 16); |
| ADD_STRING (" RSI: "); |
| ADD_MEM (regs[4], 16); |
| ADD_STRING (" RDI: "); |
| ADD_MEM (regs[5], 16); |
| ADD_STRING ("\n RBP: "); |
| ADD_MEM (regs[6], 16); |
| ADD_STRING (" R8 : "); |
| ADD_MEM (regs[7], 16); |
| ADD_STRING (" R9 : "); |
| ADD_MEM (regs[8], 16); |
| ADD_STRING ("\n R10: "); |
| ADD_MEM (regs[9], 16); |
| ADD_STRING (" R11: "); |
| ADD_MEM (regs[10], 16); |
| ADD_STRING (" R12: "); |
| ADD_MEM (regs[11], 16); |
| ADD_STRING ("\n R13: "); |
| ADD_MEM (regs[12], 16); |
| ADD_STRING (" R14: "); |
| ADD_MEM (regs[13], 16); |
| ADD_STRING (" R15: "); |
| ADD_MEM (regs[14], 16); |
| ADD_STRING ("\n RSP: "); |
| ADD_MEM (regs[15], 16); |
| ADD_STRING ("\n\n RIP: "); |
| ADD_MEM (regs[16], 16); |
| ADD_STRING (" EFLAGS: "); |
| ADD_MEM (regs[17], 8); |
| ADD_STRING ("\n\n CS: "); |
| ADD_MEM (regs[18], 4); |
| ADD_STRING (" FS: "); |
| ADD_MEM (regs[19], 4); |
| ADD_STRING (" GS: "); |
| ADD_MEM (regs[20], 4); |
| /* |
| ADD_STRING (" SS: "); |
| ADD_MEM (regs[23], 4); |
| */ |
| ADD_STRING ("\n\n Trap: "); |
| ADD_MEM (regs[21], 8); |
| ADD_STRING (" Error: "); |
| ADD_MEM (regs[22], 8); |
| ADD_STRING (" OldMask: "); |
| ADD_MEM (regs[23], 8); |
| ADD_STRING (" CR2: "); |
| ADD_MEM (regs[24], 8); |
| |
| if (ctx->uc_mcontext.fpregs != NULL) |
| { |
| |
| /* Generate output for the FPU control/status registers. */ |
| hexvalue (ctx->uc_mcontext.fpregs->cwd, fpregs[0], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->swd, fpregs[1], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->ftw, fpregs[2], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->rip, fpregs[3], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->rdp, fpregs[4], 8); |
| |
| 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 RIP: "); |
| ADD_MEM (fpregs[3], 8); |
| ADD_STRING (" RDP: "); |
| ADD_MEM (fpregs[4], 8); |
| |
| /* Now the real FPU registers. */ |
| hexvalue (ctx->uc_mcontext.fpregs->_st[0].exponent, fpregs[5], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[0].significand[3] << 16 |
| | ctx->uc_mcontext.fpregs->_st[0].significand[2], fpregs[6], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[0].significand[1] << 16 |
| | ctx->uc_mcontext.fpregs->_st[0].significand[0], fpregs[7], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[1].exponent, fpregs[8], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[1].significand[3] << 16 |
| | ctx->uc_mcontext.fpregs->_st[1].significand[2], fpregs[9], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[1].significand[1] << 16 |
| | ctx->uc_mcontext.fpregs->_st[1].significand[0], fpregs[10], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[2].exponent, fpregs[11], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[2].significand[3] << 16 |
| | ctx->uc_mcontext.fpregs->_st[2].significand[2], fpregs[12], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[2].significand[1] << 16 |
| | ctx->uc_mcontext.fpregs->_st[2].significand[0], fpregs[13], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[3].exponent, fpregs[14], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[3].significand[3] << 16 |
| | ctx->uc_mcontext.fpregs->_st[3].significand[2], fpregs[15], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[3].significand[1] << 16 |
| | ctx->uc_mcontext.fpregs->_st[3].significand[0], fpregs[16], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[4].exponent, fpregs[17], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[4].significand[3] << 16 |
| | ctx->uc_mcontext.fpregs->_st[4].significand[2], fpregs[18], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[4].significand[1] << 16 |
| | ctx->uc_mcontext.fpregs->_st[4].significand[0], fpregs[19], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[5].exponent, fpregs[20], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[5].significand[3] << 16 |
| | ctx->uc_mcontext.fpregs->_st[5].significand[2], fpregs[21], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[5].significand[1] << 16 |
| | ctx->uc_mcontext.fpregs->_st[5].significand[0], fpregs[22], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[6].exponent, fpregs[23], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[6].significand[3] << 16 |
| | ctx->uc_mcontext.fpregs->_st[6].significand[2], fpregs[24], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[6].significand[1] << 16 |
| | ctx->uc_mcontext.fpregs->_st[6].significand[0], fpregs[25], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[7].exponent, fpregs[26], 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[7].significand[3] << 16 |
| | ctx->uc_mcontext.fpregs->_st[7].significand[2], fpregs[27], |
| 8); |
| hexvalue (ctx->uc_mcontext.fpregs->_st[7].significand[1] << 16 |
| | ctx->uc_mcontext.fpregs->_st[7].significand[0], fpregs[28], |
| 8); |
| |
| hexvalue (ctx->uc_mcontext.fpregs->mxcsr, fpregs[29], 4); |
| |
| for (i = 0; i < 16; i++) |
| hexvalue (ctx->uc_mcontext.fpregs->_xmm[i].element[3] << 24 |
| | ctx->uc_mcontext.fpregs->_xmm[i].element[2] << 16 |
| | ctx->uc_mcontext.fpregs->_xmm[i].element[1] << 8 |
| | ctx->uc_mcontext.fpregs->_xmm[i].element[0], xmmregs[i], |
| 32); |
| |
| |
| ADD_STRING ("\n\n ST(0) "); |
| ADD_MEM (fpregs[5], 4); |
| ADD_STRING (" "); |
| ADD_MEM (fpregs[6], 8); |
| ADD_MEM (fpregs[7], 8); |
| ADD_STRING (" ST(1) "); |
| ADD_MEM (fpregs[8], 4); |
| ADD_STRING (" "); |
| ADD_MEM (fpregs[9], 8); |
| ADD_MEM (fpregs[10], 8); |
| ADD_STRING ("\n ST(2) "); |
| ADD_MEM (fpregs[11], 4); |
| ADD_STRING (" "); |
| ADD_MEM (fpregs[12], 8); |
| ADD_MEM (fpregs[13], 8); |
| ADD_STRING (" ST(3) "); |
| ADD_MEM (fpregs[14], 4); |
| ADD_STRING (" "); |
| ADD_MEM (fpregs[15], 8); |
| ADD_MEM (fpregs[16], 8); |
| ADD_STRING ("\n ST(4) "); |
| ADD_MEM (fpregs[17], 4); |
| ADD_STRING (" "); |
| ADD_MEM (fpregs[18], 8); |
| ADD_MEM (fpregs[19], 8); |
| ADD_STRING (" ST(5) "); |
| ADD_MEM (fpregs[20], 4); |
| ADD_STRING (" "); |
| ADD_MEM (fpregs[21], 8); |
| ADD_MEM (fpregs[22], 8); |
| ADD_STRING ("\n ST(6) "); |
| ADD_MEM (fpregs[23], 4); |
| ADD_STRING (" "); |
| ADD_MEM (fpregs[24], 8); |
| ADD_MEM (fpregs[25], 8); |
| ADD_STRING (" ST(7) "); |
| ADD_MEM (fpregs[27], 4); |
| ADD_STRING (" "); |
| ADD_MEM (fpregs[27], 8); |
| ADD_MEM (fpregs[28], 8); |
| |
| ADD_STRING ("\n mxcsr: "); |
| ADD_MEM (fpregs[29], 4); |
| |
| ADD_STRING ("\n XMM0: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING (" XMM1: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING ("\n XMM2: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING (" XMM3: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING ("\n XMM4: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING (" XMM5: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING ("\n XMM6: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING (" XMM7: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING ("\n XMM8: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING (" XMM9: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING ("\n XMM10: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING (" XMM11: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING ("\n XMM12: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING (" XMM13: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING ("\n XMM14: "); |
| ADD_MEM (xmmregs[0], 32); |
| ADD_STRING (" XMM15: "); |
| ADD_MEM (xmmregs[0], 32); |
| |
| } |
| |
| ADD_STRING ("\n"); |
| |
| /* Write the stuff out. */ |
| writev (fd, iov, nr); |
| } |
| |
| |
| #define REGISTER_DUMP register_dump (fd, ctx) |