int load_elf(const char *filename, int64_t virt_to_phys_addend, uint64_t *pentry) { int fd, data_order, must_swab, ret; uint8_t e_ident[EI_NIDENT]; fd = open(filename, O_RDONLY | O_BINARY); if (fd < 0) { perror(filename); return -1; } if (read(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident)) goto fail; if (e_ident[0] != ELFMAG0 || e_ident[1] != ELFMAG1 || e_ident[2] != ELFMAG2 || e_ident[3] != ELFMAG3) goto fail; #ifdef WORDS_BIGENDIAN data_order = ELFDATA2MSB; #else data_order = ELFDATA2LSB; #endif must_swab = data_order != e_ident[EI_DATA]; lseek(fd, 0, SEEK_SET); if (e_ident[EI_CLASS] == ELFCLASS64) { ret = load_elf64(fd, virt_to_phys_addend, must_swab, pentry); } else { ret = load_elf32(fd, virt_to_phys_addend, must_swab, pentry); } close(fd); return ret; fail: close(fd); return -1; }
int load_elf(const char *filename, int64_t virt_to_phys_addend, uint64_t *pentry) { int fd, data_order, must_swab, ret; uint8_t e_ident[EI_NIDENT]; fd = open(filename, O_RDONLY | O_BINARY); if (fd < 0) { perror(filename); return -1; } if (read(fd, e_ident, sizeof(e_ident)) != sizeof(e_ident)) goto fail; if (e_ident[0] != ELFMAG0 || e_ident[1] != ELFMAG1 || e_ident[2] != ELFMAG2 || e_ident[3] != ELFMAG3) goto fail; #ifdef WORDS_BIGENDIAN data_order = ELFDATA2MSB; #else data_order = ELFDATA2LSB; #endif must_swab = data_order != e_ident[EI_DATA]; lseek(fd, 0, SEEK_SET); if (e_ident[EI_CLASS] == ELFCLASS64) { ret = load_elf64(fd, virt_to_phys_addend, must_swab, pentry); } else { ret = load_elf32(fd, virt_to_phys_addend, must_swab, pentry); } close(fd); return ret; fail: close(fd); return -1; }