external/bsd/elftoolchain/dist/libdwarf/dwarf_errmsg.c

   1 /*      $NetBSD: dwarf_errmsg.c,v 1.2 2014/03/09 16:58:03 christos Exp $        */
   2
   3 /*-
   4  * Copyright (c) 2007 John Birrell (jb@freebsd.org)
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include "_libdwarf.h"
  30
  31 __RCSID("$NetBSD: dwarf_errmsg.c,v 1.2 2014/03/09 16:58:03 christos Exp $");
  32 ELFTC_VCSID("Id: dwarf_errmsg.c 2576 2012-09-13 09:16:11Z jkoshy ");
  33
  34 static const char *_libdwarf_errors[] = {
  35 #define DEFINE_ERROR(N,S)               [DW_DLE_##N] = S
  36         DEFINE_ERROR(NONE, "No Error"),
  37         DEFINE_ERROR(ERROR, "An error"),
  38         DEFINE_ERROR(NO_ENTRY, "No entry found"),
  39         DEFINE_ERROR(ARGUMENT, "Invalid argument"),
  40         DEFINE_ERROR(DEBUG_INFO_NULL, "Debug info NULL"),
  41         DEFINE_ERROR(MEMORY, "Insufficient memory"),
  42         DEFINE_ERROR(ELF, "ELF error"),
  43         DEFINE_ERROR(CU_LENGTH_ERROR, "Invalid compilation unit data"),
  44         DEFINE_ERROR(VERSION_STAMP_ERROR, "Unsupported version"),
  45         DEFINE_ERROR(DEBUG_ABBREV_NULL, "Abbrev not found"),
  46         DEFINE_ERROR(DIE_NO_CU_CONTEXT, "No current compilation unit"),
  47         DEFINE_ERROR(LOC_EXPR_BAD, "Invalid location expression"),
  48         DEFINE_ERROR(EXPR_LENGTH_BAD, "Invalid DWARF expression length"),
  49         DEFINE_ERROR(DEBUG_LOC_SECTION_SHORT, "Loclist section too short"),
  50         DEFINE_ERROR(ATTR_FORM_BAD, "Invalid attribute form"),
  51         DEFINE_ERROR(DEBUG_LINE_LENGTH_BAD, "Line info section too short"),
  52         DEFINE_ERROR(LINE_FILE_NUM_BAD, "Invalid file number."),
  53         DEFINE_ERROR(DIR_INDEX_BAD, "Invalid dir index."),
  54         DEFINE_ERROR(DEBUG_FRAME_LENGTH_BAD, "Frame section too short"),
  55         DEFINE_ERROR(NO_CIE_FOR_FDE, "FDE without corresponding CIE"),
  56         DEFINE_ERROR(FRAME_AUGMENTATION_UNKNOWN, "Unknown CIE augmentation"),
  57         DEFINE_ERROR(FRAME_INSTR_EXEC_ERROR, "Frame instruction exec error"),
  58         DEFINE_ERROR(FRAME_VERSION_BAD, "Unsupported frame section version"),
  59         DEFINE_ERROR(FRAME_TABLE_COL_BAD, "Invalid table column value"),
  60         DEFINE_ERROR(DF_REG_NUM_TOO_HIGH, "Register number too large"),
  61         DEFINE_ERROR(PC_NOT_IN_FDE_RANGE, "PC requested not in the FDE range"),
  62         DEFINE_ERROR(ARANGE_OFFSET_BAD, "Invalid address range offset"),
  63         DEFINE_ERROR(DEBUG_MACRO_INCONSISTENT, "Invalid macinfo data"),
  64         DEFINE_ERROR(ELF_SECT_ERR, "Application callback failed"),
  65         DEFINE_ERROR(NUM, "Unknown DWARF error")
  66 #undef  DEFINE_ERROR
  67 };
  68
  69 const char *
  70 dwarf_errmsg_(Dwarf_Error *error)
  71 {
  72         const char *p;
  73
  74         if (error == NULL)
  75                 return NULL;
  76
  77         if (error->err_error < 0 || error->err_error >= DW_DLE_NUM)
  78                 return _libdwarf_errors[DW_DLE_NUM];
  79         else if (error->err_error == DW_DLE_NONE)
  80                 return _libdwarf_errors[DW_DLE_NONE];
  81         else
  82                 p = _libdwarf_errors[error->err_error];
  83
  84         if (error->err_error == DW_DLE_ELF)
  85                 snprintf(error->err_msg, sizeof(error->err_msg),
  86                     "ELF error : %s [%s(%d)]", elf_errmsg(error->err_elferror),
  87                     error->err_func, error->err_line);
  88         else
  89                 snprintf(error->err_msg, sizeof(error->err_msg),
  90                     "%s [%s(%d)]", p, error->err_func, error->err_line);
  91
  92         return (const char *) error->err_msg;
  93 }