1 | /*- |
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2 | * Copyright (c) 2007 John Birrell (jb@freebsd.org) |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * 1. Redistributions of source code must retain the above copyright |
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9 | * notice, this list of conditions and the following disclaimer. |
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10 | * 2. Redistributions in binary form must reproduce the above copyright |
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11 | * notice, this list of conditions and the following disclaimer in the |
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12 | * documentation and/or other materials provided with the distribution. |
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13 | * |
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14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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24 | * SUCH DAMAGE. |
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25 | */ |
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26 | |
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27 | #include "_libdwarf.h" |
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28 | |
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29 | ELFTC_VCSID("$Id: dwarf_errmsg.c 2975 2014-01-21 20:08:04Z kaiwang27 $"); |
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30 | |
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31 | static const char *_libdwarf_errors[] = { |
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32 | #define DEFINE_ERROR(N,S) [DW_DLE_##N] = S |
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33 | DEFINE_ERROR(NONE, "No Error"), |
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34 | DEFINE_ERROR(ERROR, "An error"), |
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35 | DEFINE_ERROR(NO_ENTRY, "No entry found"), |
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36 | DEFINE_ERROR(ARGUMENT, "Invalid argument"), |
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37 | DEFINE_ERROR(DEBUG_INFO_NULL, "Debug info NULL"), |
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38 | DEFINE_ERROR(MEMORY, "Insufficient memory"), |
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39 | DEFINE_ERROR(ELF, "ELF error"), |
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40 | DEFINE_ERROR(CU_LENGTH_ERROR, "Invalid compilation unit data"), |
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41 | DEFINE_ERROR(VERSION_STAMP_ERROR, "Unsupported version"), |
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42 | DEFINE_ERROR(DEBUG_ABBREV_NULL, "Abbrev not found"), |
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43 | DEFINE_ERROR(DIE_NO_CU_CONTEXT, "No current compilation unit"), |
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44 | DEFINE_ERROR(LOC_EXPR_BAD, "Invalid location expression"), |
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45 | DEFINE_ERROR(EXPR_LENGTH_BAD, "Invalid DWARF expression length"), |
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46 | DEFINE_ERROR(DEBUG_LOC_SECTION_SHORT, "Loclist section too short"), |
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47 | DEFINE_ERROR(ATTR_FORM_BAD, "Invalid attribute form"), |
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48 | DEFINE_ERROR(DEBUG_LINE_LENGTH_BAD, "Line info section too short"), |
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49 | DEFINE_ERROR(LINE_FILE_NUM_BAD, "Invalid file number."), |
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50 | DEFINE_ERROR(DIR_INDEX_BAD, "Invalid dir index."), |
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51 | DEFINE_ERROR(DEBUG_FRAME_LENGTH_BAD, "Frame section too short"), |
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52 | DEFINE_ERROR(NO_CIE_FOR_FDE, "FDE without corresponding CIE"), |
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53 | DEFINE_ERROR(FRAME_AUGMENTATION_UNKNOWN, "Unknown CIE augmentation"), |
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54 | DEFINE_ERROR(FRAME_INSTR_EXEC_ERROR, "Frame instruction exec error"), |
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55 | DEFINE_ERROR(FRAME_VERSION_BAD, "Unsupported frame section version"), |
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56 | DEFINE_ERROR(FRAME_TABLE_COL_BAD, "Invalid table column value"), |
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57 | DEFINE_ERROR(DF_REG_NUM_TOO_HIGH, "Register number too large"), |
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58 | DEFINE_ERROR(PC_NOT_IN_FDE_RANGE, "PC requested not in the FDE range"), |
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59 | DEFINE_ERROR(ARANGE_OFFSET_BAD, "Invalid address range offset"), |
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60 | DEFINE_ERROR(DEBUG_MACRO_INCONSISTENT, "Invalid macinfo data"), |
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61 | DEFINE_ERROR(ELF_SECT_ERR, "Application callback failed"), |
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62 | DEFINE_ERROR(NUM, "Unknown DWARF error") |
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63 | #undef DEFINE_ERROR |
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64 | }; |
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65 | |
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66 | const char * |
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67 | dwarf_errmsg_(Dwarf_Error *error) |
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68 | { |
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69 | const char *p; |
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70 | |
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71 | if (error == NULL) |
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72 | return NULL; |
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73 | |
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74 | if (error->err_error < 0 || error->err_error >= DW_DLE_NUM) |
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75 | return _libdwarf_errors[DW_DLE_NUM]; |
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76 | else if (error->err_error == DW_DLE_NONE) |
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77 | return _libdwarf_errors[DW_DLE_NONE]; |
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78 | else |
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79 | p = _libdwarf_errors[error->err_error]; |
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80 | |
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81 | if (error->err_error == DW_DLE_ELF) |
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82 | snprintf(error->err_msg, sizeof(error->err_msg), |
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83 | "ELF error : %s [%s(%d)]", elf_errmsg(error->err_elferror), |
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84 | error->err_func, error->err_line); |
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85 | else |
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86 | snprintf(error->err_msg, sizeof(error->err_msg), |
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87 | "%s [%s(%d)]", p, error->err_func, error->err_line); |
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88 | |
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89 | return (const char *) error->err_msg; |
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90 | } |
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