mirror of git://sourceware.org/git/glibc.git
151 lines
4.4 KiB
C
151 lines
4.4 KiB
C
/* Dump registers.
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Copyright (C) 1999-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <sys/uio.h>
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#include <_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 R10: XXXXXXXX R11: XXXXXXXX
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R12: XXXXXXXX R13: XXXXXXXX R14: XXXXXXXX R15: XXXXXXXX
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MACL: XXXXXXXX MACH: XXXXXXXX
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PC: XXXXXXXX PR: XXXXXXXX GBR: XXXXXXXX SR: XXXXXXXX
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FR0: XXXXXXXX FR1: XXXXXXXX FR2: XXXXXXXX FR3: XXXXXXXX
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FR4: XXXXXXXX FR5: XXXXXXXX FR6: XXXXXXXX FR7: XXXXXXXX
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FR8: XXXXXXXX FR9: XXXXXXXX FR10: XXXXXXXX FR11: XXXXXXXX
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FR12: XXXXXXXX FR13: XXXXXXXX FR14: XXXXXXXX FR15: XXXXXXXX
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XR0: XXXXXXXX XR1: XXXXXXXX XR2: XXXXXXXX XR3: XXXXXXXX
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XR4: XXXXXXXX XR5: XXXXXXXX XR6: XXXXXXXX XR7: XXXXXXXX
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XR8: XXXXXXXX XR9: XXXXXXXX XR10: XXXXXXXX XR11: XXXXXXXX
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XR12: XXXXXXXX XR13: XXXXXXXX XR14: XXXXXXXX XR15: XXXXXXXX
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FPSCR: XXXXXXXX FPUL: 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[22][8];
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struct iovec iov[112];
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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->sc_regs[0], regs[0], 8);
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hexvalue (ctx->sc_regs[1], regs[1], 8);
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hexvalue (ctx->sc_regs[2], regs[2], 8);
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hexvalue (ctx->sc_regs[3], regs[3], 8);
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hexvalue (ctx->sc_regs[4], regs[4], 8);
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hexvalue (ctx->sc_regs[5], regs[5], 8);
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hexvalue (ctx->sc_regs[6], regs[6], 8);
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hexvalue (ctx->sc_regs[7], regs[7], 8);
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hexvalue (ctx->sc_regs[8], regs[8], 8);
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hexvalue (ctx->sc_regs[9], regs[9], 8);
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hexvalue (ctx->sc_regs[10], regs[10], 8);
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hexvalue (ctx->sc_regs[11], regs[11], 8);
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hexvalue (ctx->sc_regs[12], regs[12], 8);
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hexvalue (ctx->sc_regs[13], regs[13], 8);
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hexvalue (ctx->sc_regs[14], regs[14], 8);
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hexvalue (ctx->sc_regs[15], regs[15], 8);
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hexvalue (ctx->sc_macl, regs[16], 8);
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hexvalue (ctx->sc_mach, regs[17], 8);
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hexvalue (ctx->sc_pc, regs[18], 8);
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hexvalue (ctx->sc_pr, regs[19], 8);
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hexvalue (ctx->sc_gbr, regs[20], 8);
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hexvalue (ctx->sc_sr, regs[21], 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 (" R10: ");
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ADD_MEM (regs[10], 8);
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ADD_STRING (" R11: ");
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ADD_MEM (regs[11], 8);
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ADD_STRING ("\n R12: ");
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ADD_MEM (regs[12], 8);
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ADD_STRING (" R13: ");
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ADD_MEM (regs[13], 8);
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ADD_STRING (" R14: ");
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ADD_MEM (regs[14], 8);
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ADD_STRING (" R15: ");
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ADD_MEM (regs[15], 8);
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ADD_STRING ("\n\nMACL: ");
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ADD_MEM (regs[16], 8);
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ADD_STRING (" MACH: ");
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ADD_MEM (regs[17], 8);
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ADD_STRING ("\n\n PC: ");
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ADD_MEM (regs[18], 8);
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ADD_STRING (" PR: ");
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ADD_MEM (regs[19], 8);
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ADD_STRING (" GBR: ");
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ADD_MEM (regs[20], 8);
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ADD_STRING (" SR: ");
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ADD_MEM (regs[21], 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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