diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/mips/register-dump.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/mips/register-dump.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/mips/register-dump.h b/sysdeps/unix/sysv/linux/mips/register-dump.h new file mode 100644 index 0000000000..86c530f887 --- /dev/null +++ b/sysdeps/unix/sysv/linux/mips/register-dump.h @@ -0,0 +1,121 @@ +/* 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) |