| /* Dump registers. |
| Copyright (C) 2000-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Andreas Jaeger <aj@suse.de>, 2000. |
| |
| 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 <sgidefs.h> |
| #include <sys/uio.h> |
| #include <_itoa.h> |
| |
| #if _MIPS_SIM == _ABIO32 |
| # define CTX_TYPE struct sigcontext * |
| # define CTX_REG(ctx, i) ((ctx)->sc_regs[(i)]) |
| # define CTX_PC(ctx) ((ctx)->sc_pc) |
| # define CTX_MDHI(ctx) ((ctx)->sc_mdhi) |
| # define CTX_MDLO(ctx) ((ctx)->sc_mdlo) |
| # define REG_HEX_SIZE 8 |
| #else |
| # define CTX_TYPE ucontext_t * |
| # define CTX_REG(ctx, i) ((ctx)->uc_mcontext.gregs[(i)]) |
| # define CTX_PC(ctx) ((ctx)->uc_mcontext.pc) |
| # define CTX_MDHI(ctx) ((ctx)->uc_mcontext.mdhi) |
| # define CTX_MDLO(ctx) ((ctx)->uc_mcontext.mdhi) |
| # define REG_HEX_SIZE 16 |
| #endif |
| |
| /* 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 |
| pc lo hi |
| XXXXXXXX XXXXXXXX XXXXXXXX |
| The FPU registers will not be printed. |
| */ |
| |
| static void |
| hexvalue (_ITOA_WORD_TYPE 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, CTX_TYPE ctx) |
| { |
| char regs[38][REG_HEX_SIZE]; |
| struct iovec iov[38 * 2 + 10]; |
| 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. */ |
| for (i = 0; i < 32; i++) |
| hexvalue (CTX_REG (ctx, i), regs[i], REG_HEX_SIZE); |
| hexvalue (CTX_PC (ctx), regs[32], REG_HEX_SIZE); |
| hexvalue (CTX_MDHI (ctx), regs[33], REG_HEX_SIZE); |
| hexvalue (CTX_MDLO (ctx), regs[34], REG_HEX_SIZE); |
| |
| /* Generate the output. */ |
| ADD_STRING ("Register dump:\n\n R0 "); |
| for (i = 0; i < 8; i++) |
| { |
| ADD_MEM (regs[i], REG_HEX_SIZE); |
| ADD_STRING (" "); |
| } |
| ADD_STRING ("\n R8 "); |
| for (i = 8; i < 16; i++) |
| { |
| ADD_MEM (regs[i], REG_HEX_SIZE); |
| ADD_STRING (" "); |
| } |
| ADD_STRING ("\n R16 "); |
| for (i = 16; i < 24; i++) |
| { |
| ADD_MEM (regs[i], REG_HEX_SIZE); |
| ADD_STRING (" "); |
| } |
| ADD_STRING ("\n R24 "); |
| for (i = 24; i < 32; i++) |
| { |
| ADD_MEM (regs[i], REG_HEX_SIZE); |
| ADD_STRING (" "); |
| } |
| ADD_STRING ("\n pc lo hi\n "); |
| for (i = 32; i < 35; i++) |
| { |
| ADD_MEM (regs[i], REG_HEX_SIZE); |
| ADD_STRING (" "); |
| } |
| ADD_STRING ("\n"); |
| |
| /* Write the stuff out. */ |
| writev (fd, iov, nr); |
| } |
| |
| |
| #define REGISTER_DUMP register_dump (fd, ctx) |