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2004-10-12 Jakub Jelinek <jakub@redhat.com> * sysdeps/generic/segfault.c: Include alloca.h and stdint.h. Don't include frame.h. (CURRENT_STACK_FRAME, INNER_THAN, ADVANCE_STACK_FRAME): Remove. (catch_segfault): Use backtrace function. * sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h: Fix comment. * sysdeps/unix/sysv/linux/ia64/register-dump.h: New file. * sysdeps/unix/sysv/linux/ia64/sigcontextinfo.h (GET_PC): Return sc_ip field.
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Ulrich Drepper
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,182 @@ | ||
| /* Dump registers. | ||
| Copyright (C) 2004 Free Software Foundation, Inc. | ||
| This file is part of the GNU C Library. | ||
| Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. | ||
| 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, write to the Free | ||
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | ||
| 02111-1307 USA. */ | ||
|
|
||
| #include <string.h> | ||
| #include <sys/uio.h> | ||
| #include <stdio-common/_itoa.h> | ||
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||
| /* We will print the register dump in this format: | ||
| GP: XXXXXXXXXXXXXXXX R2: XXXXXXXXXXXXXXXX R3: XXXXXXXXXXXXXXXX | ||
| R8: XXXXXXXXXXXXXXXX R9: XXXXXXXXXXXXXXXX R10: XXXXXXXXXXXXXXXX | ||
| R11: XXXXXXXXXXXXXXXX SP: XXXXXXXXXXXXXXXX TP: XXXXXXXXXXXXXXXX | ||
| R14: XXXXXXXXXXXXXXXX R15: XXXXXXXXXXXXXXXX R16: XXXXXXXXXXXXXXXX | ||
| R17: XXXXXXXXXXXXXXXX R18: XXXXXXXXXXXXXXXX R19: XXXXXXXXXXXXXXXX | ||
| R20: XXXXXXXXXXXXXXXX R21: XXXXXXXXXXXXXXXX R22: XXXXXXXXXXXXXXXX | ||
| R23: XXXXXXXXXXXXXXXX R24: XXXXXXXXXXXXXXXX R25: XXXXXXXXXXXXXXXX | ||
| R26: XXXXXXXXXXXXXXXX R27: XXXXXXXXXXXXXXXX R28: XXXXXXXXXXXXXXXX | ||
| R29: XXXXXXXXXXXXXXXX R30: XXXXXXXXXXXXXXXX R31: XXXXXXXXXXXXXXXX | ||
| RP: XXXXXXXXXXXXXXXX B6: XXXXXXXXXXXXXXXX B7: XXXXXXXXXXXXXXXX | ||
| IP: XXXXXXXXXXXXXXXX RSC: XXXXXXXXXXXXXXXX PR: XXXXXXXXXXXXXXXX | ||
| PFS: XXXXXXXXXXXXXXXX UNAT: XXXXXXXXXXXXXXXX CFM: XXXXXXXXXXXXXXXX | ||
| CCV: XXXXXXXXXXXXXXXX FPSR: XXXXXXXXXXXXXXXX | ||
| F32: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX F33: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX | ||
| F34: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX F35: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX | ||
| ... | ||
| F124: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX F125: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX | ||
| F126: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX F127: 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'; | ||
| } | ||
|
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||
| static void | ||
| regvalue (unsigned long int *value, char letter, int regno, char *buf) | ||
| { | ||
| int n = regno >= 100 ? 3 : regno >= 10 ? 2 : 1; | ||
| buf[0] = ' '; | ||
| buf[1] = letter; | ||
| _itoa_word (regno, buf + 2 + n, 10, 0); | ||
| buf[2 + n] = ':'; | ||
| for (++n; n <= 4; ++n) | ||
| buf[2 + n] = ' '; | ||
| hexvalue (value[0], buf + 7, 16); | ||
| if (letter == 'F') | ||
| { | ||
| hexvalue (value[1], buf + 7 + 16, 16); | ||
| buf[7 + 32] = '\n'; | ||
| } | ||
| else | ||
| buf[7 + 16] = '\n'; | ||
| } | ||
|
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||
| static void | ||
| register_dump (int fd, struct sigcontext *ctx) | ||
| { | ||
| char gpregs[32 - 5][8 + 16]; | ||
| char fpregs[128 - 32][8 + 32]; | ||
| char bpregs[3][8 + 16]; | ||
| char spregs[8][16]; | ||
| struct iovec iov[146]; | ||
| size_t nr = 0; | ||
| int i; | ||
|
|
||
| #define ADD_STRING(str) \ | ||
| do \ | ||
| { \ | ||
| iov[nr].iov_base = (char *) str; \ | ||
| iov[nr].iov_len = strlen (str); \ | ||
| ++nr; \ | ||
| } \ | ||
| while (0) | ||
| #define ADD_MEM(str, len) \ | ||
| do \ | ||
| { \ | ||
| iov[nr].iov_base = str; \ | ||
| iov[nr].iov_len = len; \ | ||
| ++nr; \ | ||
| } \ | ||
| while (0) | ||
|
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||
| /* Generate strings of register contents. */ | ||
| for (i = 1; i < 4; ++i) | ||
| { | ||
| regvalue (&ctx->sc_gr[i], 'R', i, gpregs[i - 1]); | ||
| if (ctx->sc_nat & (1L << i)) | ||
| memcpy (gpregs[i - 1] + 7, "NaT ", 16); | ||
| } | ||
| for (i = 8; i < 32; ++i) | ||
| { | ||
| regvalue (&ctx->sc_gr[i], 'R', i, gpregs[i - 5]); | ||
| if (ctx->sc_nat & (1L << i)) | ||
| memcpy (gpregs[i - 1] + 7, "NaT ", 16); | ||
| } | ||
| memcpy (gpregs[0] + 1, "GP:", 3); | ||
| memcpy (gpregs[7] + 1, "SP: ", 4); | ||
| memcpy (gpregs[8] + 1, "TP: ", 4); | ||
|
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| regvalue (&ctx->sc_br[0], 'B', 0, bpregs[0]); | ||
| regvalue (&ctx->sc_br[6], 'B', 6, bpregs[1]); | ||
| regvalue (&ctx->sc_br[7], 'B', 7, bpregs[2]); | ||
| memcpy (bpregs[0] + 1, "RP:", 3); | ||
|
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| if (ctx->sc_flags & IA64_SC_FLAG_FPH_VALID) | ||
| for (i = 32; i < 128; ++i) | ||
| regvalue (&ctx->sc_fr[i].u.bits[0], 'F', i, fpregs[i - 32]); | ||
|
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| hexvalue (ctx->sc_ip, spregs[0], sizeof (spregs[0])); | ||
| hexvalue (ctx->sc_ar_rsc, spregs[1], sizeof (spregs[1])); | ||
| hexvalue (ctx->sc_pr, spregs[2], sizeof (spregs[2])); | ||
| hexvalue (ctx->sc_ar_pfs, spregs[3], sizeof (spregs[3])); | ||
| hexvalue (ctx->sc_ar_unat, spregs[4], sizeof (spregs[4])); | ||
| hexvalue (ctx->sc_cfm, spregs[5], sizeof (spregs[5])); | ||
| hexvalue (ctx->sc_ar_ccv, spregs[6], sizeof (spregs[6])); | ||
| hexvalue (ctx->sc_ar_fpsr, spregs[7], sizeof (spregs[7])); | ||
|
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| /* Generate the output. */ | ||
| ADD_STRING ("Register dump:\n\n"); | ||
|
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| for (i = 0; i < 32 - 5; ++i) | ||
| ADD_MEM (gpregs[i], sizeof (gpregs[0]) - 1 + ((i % 3) == 2)); | ||
| ADD_STRING ("\n"); | ||
|
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| for (i = 0; i < 3; ++i) | ||
| ADD_MEM (bpregs[i], sizeof (bpregs[0]) - 1); | ||
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| ADD_STRING ("\n\n IP: "); | ||
| ADD_MEM (spregs[0], sizeof (spregs[0])); | ||
| ADD_STRING (" RSC: "); | ||
| ADD_MEM (spregs[1], sizeof (spregs[0])); | ||
| ADD_STRING (" PR: "); | ||
| ADD_MEM (spregs[2], sizeof (spregs[0])); | ||
| ADD_STRING ("\n PFS: "); | ||
| ADD_MEM (spregs[3], sizeof (spregs[0])); | ||
| ADD_STRING (" UNAT: "); | ||
| ADD_MEM (spregs[4], sizeof (spregs[0])); | ||
| ADD_STRING (" CFM: "); | ||
| ADD_MEM (spregs[5], sizeof (spregs[0])); | ||
| ADD_STRING ("\n CCV: "); | ||
| ADD_MEM (spregs[6], sizeof (spregs[0])); | ||
| ADD_STRING (" FPSR: "); | ||
| ADD_MEM (spregs[7], sizeof (spregs[0])); | ||
| ADD_STRING ("\n"); | ||
|
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| if (ctx->sc_flags & IA64_SC_FLAG_FPH_VALID) | ||
| { | ||
| ADD_STRING ("\n"); | ||
|
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| for (i = 0; i < 128 - 32; ++i) | ||
| ADD_MEM (fpregs[i], sizeof (fpregs[0]) - 1 + (i & 1)); | ||
| } | ||
|
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| /* Write the stuff out. */ | ||
| writev (fd, iov, nr); | ||
| } | ||
|
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||
|
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| #define REGISTER_DUMP register_dump (fd, ctx) |
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