void parse() {
parseElfHeader();
parseSections();
parseSymbols();
parseRelocations();
foreach (auto §ion, sections_) {
image_->addSection(std::move(section));
}
void parseElfFile(e32info* info, fs_node_t* file) {
unsigned int headerIterator;
info->m_mainHeader = parseElfHeader(file);
//Allocate the space for the program headers
info->m_programHeaders = (e32_pheader*) malloc(sizeof(e32_pheader) * info->m_mainHeader.e_phnum);
info->m_numProgramHeaders = info->m_mainHeader.e_phnum;
//Load each header
for (headerIterator = 0; headerIterator < info->m_numProgramHeaders; headerIterator++) {
info->m_programHeaders[headerIterator] = parseElfProgramHeader(file, info->m_mainHeader, headerIterator);
}
//Allocate the space for the section headers
info->m_sectionHeaders = (e32_sheader*) malloc(sizeof(e32_sheader) * info->m_mainHeader.e_shnum);
info->m_numSectionHeaders = info->m_mainHeader.e_shnum;
//Load each section header
for (headerIterator = 0; headerIterator < info->m_numSectionHeaders; headerIterator++) {
info->m_sectionHeaders[headerIterator] = parseElfSectionHeader(file, info->m_mainHeader, headerIterator);
}
}
int main(int argc, char *argv[]){
elfHeader_t elfHeader;
FILE *elf, *bin;
uint32_t numBytesRead, i;
if(argc != 2){
printf("Please specify exactly one input elf file\n");
exit(-1);
}
if((elf = fopen(argv[1],"rb")) == NULL){
printf("Could not open %s\n", argv[1]);
exit(-2);
}
//
// FIXME
// The file name should match the input file excepting
// for the extension.
//
char *outputFileName = (char *)malloc(strlen(argv[1]) + 4);
char *ptr;
if(ptr = strrchr(argv[1], '.')) *ptr = '\0';
sprintf(outputFileName,"%s.img",argv[1]);
if((bin = fopen(outputFileName,"wb")) == NULL){
printf("Could not open file for writing\n");
exit(-3);
}
parseElfHeader(elf,&elfHeader);
if(elfHeader.e_type != ET_EXEC){
printf("Invalid ELF: Non-executable image\n");
exit(-4);
}
if(elfHeader.e_machine != EM_ARM){
printf("Invalid ELF: Not ARM executable\n");
exit(-5);
}
if(elfHeader.e_phoff == 0){
printf("Invalid ELF: Process image cannot be created\n");
exit(-6);
}
for(i=0; i<elfHeader.e_phnum; i++){
programHeader_t *programHeader = (programHeader_t *)malloc(sizeof(programHeader_t));
parseProgramHeader(elf, programHeader);
uint32_t inst;
fseek(elf, programHeader->p_paddr, SEEK_SET);
for(i=0; i<programHeader->p_filesz; i++){
fread(&inst,1,4,elf);
fwrite(&inst,1,4,bin);
}
}
fclose(elf);
fclose(bin);
}
