gecko-dev/tools/reorder/elf_utils.cpp
2012-05-21 12:12:37 +01:00

37 lines
935 B
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include <fstream>
#include "elf_utils.h"
int
elf_verify_header(const Elf32_Ehdr *hdr)
{
if (hdr->e_ident[EI_MAG0] != ELFMAG0
|| hdr->e_ident[EI_MAG1] != ELFMAG1
|| hdr->e_ident[EI_MAG2] != ELFMAG2
|| hdr->e_ident[EI_MAG3] != ELFMAG3) {
cerr << "not an elf file" << endl;
return -1;
}
if (hdr->e_ident[EI_CLASS] != ELFCLASS32) {
cerr << "not a 32-bit elf file" << endl;
return -1;
}
if (hdr->e_ident[EI_DATA] != ELFDATA2LSB) {
cerr << "not a little endian elf file" << endl;
return -1;
}
if (hdr->e_ident[EI_VERSION] != EV_CURRENT) {
cerr << "incompatible version" << endl;
return -1;
}
return 0;
}