| /* Copyright (C) 2011-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. |
| Based on work 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, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sys/uio.h> |
| #include <_itoa.h> |
| |
| /* We will print the register dump in this format: |
| |
| R0: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX |
| R8: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX |
| R16: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX |
| R24: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX |
| R32: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX |
| R40: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX |
| R48: XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX |
| R52: XXXXXXXX TP: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX |
| |
| PC: XXXXXXXX ICS: X FAULTNUM: XX |
| |
| */ |
| |
| 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, mcontext_t *ctx) |
| { |
| char regs[59][8]; |
| struct iovec iov[143]; |
| size_t nr = 0; |
| unsigned 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. */ |
| for (i = 0; i < 56; ++i) |
| hexvalue (ctx->gregs[i], regs[i], 8); |
| hexvalue (ctx->pc, regs[56], 8); |
| hexvalue (ctx->ics, regs[57], 1); |
| hexvalue (ctx->faultnum, regs[58], 2); |
| |
| /* Generate the output. */ |
| for (i = 0; i < 52;) |
| { |
| const char *prefixes[] = { |
| "Register dump:\n\n R0: ", |
| "\n R8: ", |
| "\n R16: ", |
| "\n R24: ", |
| "\n R32: ", |
| "\n R40: ", |
| "\n R48: " |
| }; |
| ADD_STRING (prefixes[i / 8]); |
| do |
| { |
| ADD_MEM (regs[i], 8); |
| ADD_STRING (" "); |
| } |
| while (++i % 8 && i < 52); |
| } |
| ADD_STRING ("\n R52: "); |
| ADD_MEM (regs[52], 8); |
| ADD_STRING (" TP: "); |
| ADD_MEM (regs[53], 8); |
| ADD_STRING (" SP: "); |
| ADD_MEM (regs[54], 8); |
| ADD_STRING (" LR: "); |
| ADD_MEM (regs[55], 8); |
| ADD_STRING ("\n\n PC: "); |
| ADD_MEM (regs[56], 8); |
| ADD_STRING (" ICS: "); |
| ADD_MEM (regs[57], 1); |
| ADD_STRING (" FAULTNUM: "); |
| ADD_MEM (regs[58], 2); |
| ADD_STRING ("\n"); |
| |
| /* Write the stuff out. */ |
| writev (fd, iov, nr); |
| } |
| |
| |
| #define REGISTER_DUMP register_dump (fd, &ctx->uc_mcontext) |
