1179187Sjb/*- 2179187Sjb * Copyright (c) 2007 John Birrell (jb@freebsd.org) 3179187Sjb * All rights reserved. 4179187Sjb * 5179187Sjb * Redistribution and use in source and binary forms, with or without 6179187Sjb * modification, are permitted provided that the following conditions 7179187Sjb * are met: 8179187Sjb * 1. Redistributions of source code must retain the above copyright 9179187Sjb * notice, this list of conditions and the following disclaimer. 10179187Sjb * 2. Redistributions in binary form must reproduce the above copyright 11179187Sjb * notice, this list of conditions and the following disclaimer in the 12179187Sjb * documentation and/or other materials provided with the distribution. 13179187Sjb * 14179187Sjb * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15179187Sjb * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16179187Sjb * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17179187Sjb * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18179187Sjb * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19179187Sjb * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20179187Sjb * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21179187Sjb * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22179187Sjb * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23179187Sjb * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24179187Sjb * SUCH DAMAGE. 25179187Sjb * 26179187Sjb * $FreeBSD$ 27179187Sjb */ 28179187Sjb 29179187Sjb#include <stdio.h> 30179187Sjb#include "_libdwarf.h" 31179187Sjb 32241720Sedstatic const char *_libdwarf_errors[] = { 33179187Sjb#define DEFINE_ERROR(N,S) [DWARF_E_##N] = S 34179187Sjb DEFINE_ERROR(NONE, "No Error"), 35179187Sjb DEFINE_ERROR(ERROR, "An error"), 36179187Sjb DEFINE_ERROR(NO_ENTRY, "No entry found"), 37179187Sjb DEFINE_ERROR(ARGUMENT, "Invalid argument"), 38179187Sjb DEFINE_ERROR(DEBUG_INFO, "Debug info NULL"), 39179187Sjb DEFINE_ERROR(MEMORY, "Insufficient memory"), 40179187Sjb DEFINE_ERROR(ELF, "ELF error"), 41179187Sjb DEFINE_ERROR(INVALID_CU, "Invalid compilation unit data"), 42179187Sjb DEFINE_ERROR(CU_VERSION, "Wrong CU version. Only 2 and 3 supported"), 43179187Sjb DEFINE_ERROR(MISSING_ABBREV, "Abbrev not found"), 44179187Sjb DEFINE_ERROR(NOT_IMPLEMENTED, "Unimplemented code at"), 45179187Sjb DEFINE_ERROR(CU_CURRENT, "No current compilation unit"), 46179187Sjb DEFINE_ERROR(BAD_FORM, "Wrong form type for attribute value"), 47179187Sjb DEFINE_ERROR(INVALID_EXPR, "Invalid DWARF expression"), 48179187Sjb DEFINE_ERROR(NUM, "Unknown DWARF error") 49179187Sjb#undef DEFINE_ERROR 50179187Sjb}; 51179187Sjb 52179187Sjbconst char * 53179187Sjbdwarf_errmsg(Dwarf_Error *error) 54179187Sjb{ 55179187Sjb const char *p; 56179187Sjb 57179187Sjb if (error == NULL) 58179187Sjb return NULL; 59179187Sjb 60179187Sjb if (error->err_error < 0 || error->err_error >= DWARF_E_NUM) 61179187Sjb return _libdwarf_errors[DWARF_E_NUM]; 62179187Sjb else if (error->err_error == DWARF_E_NONE) 63179187Sjb return _libdwarf_errors[DWARF_E_NONE]; 64179187Sjb else 65179187Sjb p = _libdwarf_errors[error->err_error]; 66179187Sjb 67179187Sjb if (error->err_error == DWARF_E_ELF) 68179187Sjb snprintf(error->err_msg, sizeof(error->err_msg), 69179187Sjb "ELF error : %s [%s(%d)]", elf_errmsg(error->elf_error), 70179187Sjb error->err_func, error->err_line); 71179187Sjb else 72179187Sjb snprintf(error->err_msg, sizeof(error->err_msg), 73179187Sjb "%s [%s(%d)]", p, error->err_func, error->err_line); 74179187Sjb 75179187Sjb return (const char *) error->err_msg; 76179187Sjb} 77