gem5/ext/libelf/elf_errmsg.c
Gabe Black 7bc68151b7 LibElf: Build the error management code in libelf.
This change makes some minor changes to get the error management code in
libelf to build on Linux and to build it into the library.
2011-06-12 23:51:59 -07:00

82 lines
3.2 KiB
C

/*-
* Copyright (c) 2006 Joseph Koshy
* 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.
*/
#include <string.h>
#include "_libelf.h"
#include "libelf.h"
/*
* Retrieve a human readable translation for an error message.
*/
const char *_libelf_errors[] = {
#define DEFINE_ERROR(N,S) [ELF_E_##N] = S
DEFINE_ERROR(NONE, "No Error"),
DEFINE_ERROR(ARCHIVE, "Malformed ar(1) archive"),
DEFINE_ERROR(ARGUMENT, "Invalid argument"),
DEFINE_ERROR(CLASS, "ELF class mismatch"),
DEFINE_ERROR(DATA, "Invalid data buffer descriptor"),
DEFINE_ERROR(HEADER, "Missing or malformed ELF header"),
DEFINE_ERROR(IO, "I/O error"),
DEFINE_ERROR(LAYOUT, "Layout constraint violation"),
DEFINE_ERROR(MODE, "Incorrect ELF descriptor mode"),
DEFINE_ERROR(RANGE, "Value out of range of target"),
DEFINE_ERROR(RESOURCE, "Resource exhaustion"),
DEFINE_ERROR(SECTION, "Invalid section descriptor"),
DEFINE_ERROR(SEQUENCE, "API calls out of sequence"),
DEFINE_ERROR(UNIMPL, "Unimplemented feature"),
DEFINE_ERROR(VERSION, "Unknown ELF API version"),
DEFINE_ERROR(NUM, "Unknown error")
#undef DEFINE_ERROR
};
const char *
elf_errmsg(int error)
{
int oserr;
if (error == 0 && (error = LIBELF_PRIVATE(error)) == 0)
return NULL;
else if (error == -1)
error = LIBELF_PRIVATE(error);
oserr = error >> LIBELF_OS_ERROR_SHIFT;
error &= LIBELF_ELF_ERROR_MASK;
if (error < 0 || error >= ELF_E_NUM)
return _libelf_errors[ELF_E_NUM];
if (oserr) {
strncpy(LIBELF_PRIVATE(msg), _libelf_errors[error],
sizeof(LIBELF_PRIVATE(msg)));
strncat(LIBELF_PRIVATE(msg), ": ", sizeof(LIBELF_PRIVATE(msg)));
strncat(LIBELF_PRIVATE(msg), strerror(oserr),
sizeof(LIBELF_PRIVATE(msg)));
return (const char *)&LIBELF_PRIVATE(msg);
}
return _libelf_errors[error];
}