ref: db565b93a3e8db0e72be663d3cb6560ab96fc64f
dir: /src/libmach/elf64/elf64probe.c/
#include <stdio.h> #include <scc/mach.h> #include "../libmach.h" #include "elf64.h" struct arch { char *name; int mach; int endian; int type; }; static struct arch archs[] = { { .name = "elf64-amd64", .mach = EM_X86_64, .endian = ELFDATA2LSB, .type = OBJ(ELF64, ARCHAMD64, LITTLE_ENDIAN), }, NULL, }; int elf64probe(unsigned char *buf, char **name) { int endian; Elf_Ehdr hdr; struct arch *ap; unpack(buf[EI_DATA] == ELFDATA2LSB ? LITTLE_ENDIAN : BIG_ENDIAN, buf, "'16sss", hdr.e_ident, &hdr.e_type, &hdr.e_machine, &hdr.e_version); if (!IS_ELF(hdr) || buf[EI_CLASS] != ELFCLASS64 || buf[EI_DATA] == ELFDATANONE || buf[EI_VERSION] != EV_CURRENT || (buf[EI_DATA] != ELFDATA2LSB && buf[EI_DATA] != ELFDATA2MSB)) { return -1; } if (hdr.e_version != EV_CURRENT) return -1; endian = hdr.e_ident[EI_DATA]; for (ap = archs; ap->name; ap++) { if (ap->mach == hdr.e_machine && ap->endian == endian) { if (name) *name = ap->name; return 0; } } return -1; }