1 /*- 2 * Copyright (c) 2007 John Birrell (jb@freebsd.org) 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include "_libdwarf.h" 28 29 ELFTC_VCSID("$Id: dwarf_errmsg.c 2975 2014-01-21 20:08:04Z kaiwang27 $"); 30 31 static const char *_libdwarf_errors[] = { 32 #define DEFINE_ERROR(N,S) [DW_DLE_##N] = S 33 DEFINE_ERROR(NONE, "No Error"), 34 DEFINE_ERROR(ERROR, "An error"), 35 DEFINE_ERROR(NO_ENTRY, "No entry found"), 36 DEFINE_ERROR(ARGUMENT, "Invalid argument"), 37 DEFINE_ERROR(DEBUG_INFO_NULL, "Debug info NULL"), 38 DEFINE_ERROR(MEMORY, "Insufficient memory"), 39 DEFINE_ERROR(ELF, "ELF error"), 40 DEFINE_ERROR(CU_LENGTH_ERROR, "Invalid compilation unit data"), 41 DEFINE_ERROR(VERSION_STAMP_ERROR, "Unsupported version"), 42 DEFINE_ERROR(DEBUG_ABBREV_NULL, "Abbrev not found"), 43 DEFINE_ERROR(DIE_NO_CU_CONTEXT, "No current compilation unit"), 44 DEFINE_ERROR(LOC_EXPR_BAD, "Invalid location expression"), 45 DEFINE_ERROR(EXPR_LENGTH_BAD, "Invalid DWARF expression length"), 46 DEFINE_ERROR(DEBUG_LOC_SECTION_SHORT, "Loclist section too short"), 47 DEFINE_ERROR(ATTR_FORM_BAD, "Invalid attribute form"), 48 DEFINE_ERROR(DEBUG_LINE_LENGTH_BAD, "Line info section too short"), 49 DEFINE_ERROR(LINE_FILE_NUM_BAD, "Invalid file number."), 50 DEFINE_ERROR(DIR_INDEX_BAD, "Invalid dir index."), 51 DEFINE_ERROR(DEBUG_FRAME_LENGTH_BAD, "Frame section too short"), 52 DEFINE_ERROR(NO_CIE_FOR_FDE, "FDE without corresponding CIE"), 53 DEFINE_ERROR(FRAME_AUGMENTATION_UNKNOWN, "Unknown CIE augmentation"), 54 DEFINE_ERROR(FRAME_INSTR_EXEC_ERROR, "Frame instruction exec error"), 55 DEFINE_ERROR(FRAME_VERSION_BAD, "Unsupported frame section version"), 56 DEFINE_ERROR(FRAME_TABLE_COL_BAD, "Invalid table column value"), 57 DEFINE_ERROR(DF_REG_NUM_TOO_HIGH, "Register number too large"), 58 DEFINE_ERROR(PC_NOT_IN_FDE_RANGE, "PC requested not in the FDE range"), 59 DEFINE_ERROR(ARANGE_OFFSET_BAD, "Invalid address range offset"), 60 DEFINE_ERROR(DEBUG_MACRO_INCONSISTENT, "Invalid macinfo data"), 61 DEFINE_ERROR(ELF_SECT_ERR, "Application callback failed"), 62 DEFINE_ERROR(NUM, "Unknown DWARF error") 63 #undef DEFINE_ERROR 64 }; 65 66 const char * 67 dwarf_errmsg_(Dwarf_Error *error) 68 { 69 const char *p; 70 71 if (error == NULL) 72 return NULL; 73 74 if (error->err_error < 0 || error->err_error >= DW_DLE_NUM) 75 return _libdwarf_errors[DW_DLE_NUM]; 76 else if (error->err_error == DW_DLE_NONE) 77 return _libdwarf_errors[DW_DLE_NONE]; 78 else 79 p = _libdwarf_errors[error->err_error]; 80 81 if (error->err_error == DW_DLE_ELF) 82 snprintf(error->err_msg, sizeof(error->err_msg), 83 "ELF error : %s [%s(%d)]", elf_errmsg(error->err_elferror), 84 error->err_func, error->err_line); 85 else 86 snprintf(error->err_msg, sizeof(error->err_msg), 87 "%s [%s(%d)]", p, error->err_func, error->err_line); 88 89 return (const char *) error->err_msg; 90 } 91