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/*-
* Copyright (c) 2007 John Birrell (jb@freebsd.org)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <stdio.h>
#include "_libdwarf.h"
static const char *_libdwarf_errors[] = {
#define DEFINE_ERROR(N,S) [DWARF_E_##N] = S
DEFINE_ERROR(NONE, "No Error"),
DEFINE_ERROR(ERROR, "An error"),
DEFINE_ERROR(NO_ENTRY, "No entry found"),
DEFINE_ERROR(ARGUMENT, "Invalid argument"),
DEFINE_ERROR(DEBUG_INFO, "Debug info NULL"),
DEFINE_ERROR(MEMORY, "Insufficient memory"),
DEFINE_ERROR(ELF, "ELF error"),
DEFINE_ERROR(INVALID_CU, "Invalid compilation unit data"),
DEFINE_ERROR(CU_VERSION, "Wrong CU version. Only 2 and 3 supported"),
DEFINE_ERROR(MISSING_ABBREV, "Abbrev not found"),
DEFINE_ERROR(NOT_IMPLEMENTED, "Unimplemented code at"),
DEFINE_ERROR(CU_CURRENT, "No current compilation unit"),
DEFINE_ERROR(BAD_FORM, "Wrong form type for attribute value"),
DEFINE_ERROR(INVALID_EXPR, "Invalid DWARF expression"),
DEFINE_ERROR(NUM, "Unknown DWARF error")
#undef DEFINE_ERROR
};
const char *
dwarf_errmsg(Dwarf_Error *error)
{
const char *p;
if (error == NULL)
return NULL;
if (error->err_error < 0 || error->err_error >= DWARF_E_NUM)
return _libdwarf_errors[DWARF_E_NUM];
else if (error->err_error == DWARF_E_NONE)
return _libdwarf_errors[DWARF_E_NONE];
else
p = _libdwarf_errors[error->err_error];
if (error->err_error == DWARF_E_ELF)
snprintf(error->err_msg, sizeof(error->err_msg),
"ELF error : %s [%s(%d)]", elf_errmsg(error->elf_error),
error->err_func, error->err_line);
else
snprintf(error->err_msg, sizeof(error->err_msg),
"%s [%s(%d)]", p, error->err_func, error->err_line);
return (const char *) error->err_msg;
}
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