Date: Wed, 16 Aug 2006 00:51:26 GMT From: John Birrell <jb@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 104165 for review Message-ID: <200608160051.k7G0pQv0091175@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=104165 Change 104165 by jb@jb_freebsd2 on 2006/08/16 00:50:56 Replace the current elfdump code with a simple wrapper for the thread-safe function in libelf. Affected files ... .. //depot/projects/dtrace/src/usr.bin/elfdump/elfdump.c#3 edit Differences ... ==== //depot/projects/dtrace/src/usr.bin/elfdump/elfdump.c#3 (text+ko) ==== @@ -1,6 +1,5 @@ /*- - * Copyright (c) 2003 David O'Brien. All rights reserved. - * Copyright (c) 2001 Jake Burkholder + * Copyright (c) 2006 John Birrell jb@freebsd.org * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -26,1085 +25,13 @@ */ #include <sys/cdefs.h> -__FBSDID("$FreeBSD: src/usr.bin/elfdump/elfdump.c,v 1.14 2006/01/28 17:58:22 marcel Exp $"); +__FBSDID("$FreeBSD$"); -#include <sys/types.h> -#include <sys/elf32.h> -#include <sys/elf64.h> -#include <sys/endian.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <err.h> -#include <fcntl.h> -#include <inttypes.h> -#include <stddef.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> - -#define ED_DYN (1<<0) -#define ED_EHDR (1<<1) -#define ED_GOT (1<<2) -#define ED_HASH (1<<3) -#define ED_INTERP (1<<4) -#define ED_NOTE (1<<5) -#define ED_PHDR (1<<6) -#define ED_REL (1<<7) -#define ED_SHDR (1<<8) -#define ED_SYMTAB (1<<9) -#define ED_ALL ((1<<10)-1) - -#define elf_get_addr elf_get_quad -#define elf_get_off elf_get_quad -#define elf_get_size elf_get_quad - -enum elf_member { - D_TAG = 1, D_PTR, D_VAL, - - E_CLASS, E_DATA, E_OSABI, E_TYPE, E_MACHINE, E_VERSION, E_ENTRY, - E_PHOFF, E_SHOFF, E_FLAGS, E_EHSIZE, E_PHENTSIZE, E_PHNUM, E_SHENTSIZE, - E_SHNUM, E_SHSTRNDX, - - N_NAMESZ, N_DESCSZ, N_TYPE, - - P_TYPE, P_OFFSET, P_VADDR, P_PADDR, P_FILESZ, P_MEMSZ, P_FLAGS, - P_ALIGN, - - SH_NAME, SH_TYPE, SH_FLAGS, SH_ADDR, SH_OFFSET, SH_SIZE, SH_LINK, - SH_INFO, SH_ADDRALIGN, SH_ENTSIZE, - - ST_NAME, ST_VALUE, ST_SIZE, ST_INFO, ST_SHNDX, - - R_OFFSET, R_INFO, - - RA_OFFSET, RA_INFO, RA_ADDEND -}; - -typedef enum elf_member elf_member_t; - -int elf32_offsets[] = { - 0, - - offsetof(Elf32_Dyn, d_tag), offsetof(Elf32_Dyn, d_un.d_ptr), - offsetof(Elf32_Dyn, d_un.d_val), - - offsetof(Elf32_Ehdr, e_ident[EI_CLASS]), - offsetof(Elf32_Ehdr, e_ident[EI_DATA]), - offsetof(Elf32_Ehdr, e_ident[EI_OSABI]), - offsetof(Elf32_Ehdr, e_type), offsetof(Elf32_Ehdr, e_machine), - offsetof(Elf32_Ehdr, e_version), offsetof(Elf32_Ehdr, e_entry), - offsetof(Elf32_Ehdr, e_phoff), offsetof(Elf32_Ehdr, e_shoff), - offsetof(Elf32_Ehdr, e_flags), offsetof(Elf32_Ehdr, e_ehsize), - offsetof(Elf32_Ehdr, e_phentsize), offsetof(Elf32_Ehdr, e_phnum), - offsetof(Elf32_Ehdr, e_shentsize), offsetof(Elf32_Ehdr, e_shnum), - offsetof(Elf32_Ehdr, e_shstrndx), - - offsetof(Elf_Note, n_namesz), offsetof(Elf_Note, n_descsz), - offsetof(Elf_Note, n_type), - - offsetof(Elf32_Phdr, p_type), offsetof(Elf32_Phdr, p_offset), - offsetof(Elf32_Phdr, p_vaddr), offsetof(Elf32_Phdr, p_paddr), - offsetof(Elf32_Phdr, p_filesz), offsetof(Elf32_Phdr, p_memsz), - offsetof(Elf32_Phdr, p_flags), offsetof(Elf32_Phdr, p_align), - - offsetof(Elf32_Shdr, sh_name), offsetof(Elf32_Shdr, sh_type), - offsetof(Elf32_Shdr, sh_flags), offsetof(Elf32_Shdr, sh_addr), - offsetof(Elf32_Shdr, sh_offset), offsetof(Elf32_Shdr, sh_size), - offsetof(Elf32_Shdr, sh_link), offsetof(Elf32_Shdr, sh_info), - offsetof(Elf32_Shdr, sh_addralign), offsetof(Elf32_Shdr, sh_entsize), - - offsetof(Elf32_Sym, st_name), offsetof(Elf32_Sym, st_value), - offsetof(Elf32_Sym, st_size), offsetof(Elf32_Sym, st_info), - offsetof(Elf32_Sym, st_shndx), - - offsetof(Elf32_Rel, r_offset), offsetof(Elf32_Rel, r_info), - - offsetof(Elf32_Rela, r_offset), offsetof(Elf32_Rela, r_info), - offsetof(Elf32_Rela, r_addend) -}; - -int elf64_offsets[] = { - 0, - - offsetof(Elf64_Dyn, d_tag), offsetof(Elf64_Dyn, d_un.d_ptr), - offsetof(Elf64_Dyn, d_un.d_val), - - offsetof(Elf32_Ehdr, e_ident[EI_CLASS]), - offsetof(Elf32_Ehdr, e_ident[EI_DATA]), - offsetof(Elf32_Ehdr, e_ident[EI_OSABI]), - offsetof(Elf64_Ehdr, e_type), offsetof(Elf64_Ehdr, e_machine), - offsetof(Elf64_Ehdr, e_version), offsetof(Elf64_Ehdr, e_entry), - offsetof(Elf64_Ehdr, e_phoff), offsetof(Elf64_Ehdr, e_shoff), - offsetof(Elf64_Ehdr, e_flags), offsetof(Elf64_Ehdr, e_ehsize), - offsetof(Elf64_Ehdr, e_phentsize), offsetof(Elf64_Ehdr, e_phnum), - offsetof(Elf64_Ehdr, e_shentsize), offsetof(Elf64_Ehdr, e_shnum), - offsetof(Elf64_Ehdr, e_shstrndx), - - offsetof(Elf_Note, n_namesz), offsetof(Elf_Note, n_descsz), - offsetof(Elf_Note, n_type), - - offsetof(Elf64_Phdr, p_type), offsetof(Elf64_Phdr, p_offset), - offsetof(Elf64_Phdr, p_vaddr), offsetof(Elf64_Phdr, p_paddr), - offsetof(Elf64_Phdr, p_filesz), offsetof(Elf64_Phdr, p_memsz), - offsetof(Elf64_Phdr, p_flags), offsetof(Elf64_Phdr, p_align), - - offsetof(Elf64_Shdr, sh_name), offsetof(Elf64_Shdr, sh_type), - offsetof(Elf64_Shdr, sh_flags), offsetof(Elf64_Shdr, sh_addr), - offsetof(Elf64_Shdr, sh_offset), offsetof(Elf64_Shdr, sh_size), - offsetof(Elf64_Shdr, sh_link), offsetof(Elf64_Shdr, sh_info), - offsetof(Elf64_Shdr, sh_addralign), offsetof(Elf64_Shdr, sh_entsize), - - offsetof(Elf64_Sym, st_name), offsetof(Elf64_Sym, st_value), - offsetof(Elf64_Sym, st_size), offsetof(Elf64_Sym, st_info), - offsetof(Elf64_Sym, st_shndx), - - offsetof(Elf64_Rel, r_offset), offsetof(Elf64_Rel, r_info), - - offsetof(Elf64_Rela, r_offset), offsetof(Elf64_Rela, r_info), - offsetof(Elf64_Rela, r_addend) -}; - -/* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#tag_encodings */ -static const char * -d_tags(u_int64_t tag) { - switch (tag) { - case 0: return "DT_NULL"; - case 1: return "DT_NEEDED"; - case 2: return "DT_PLTRELSZ"; - case 3: return "DT_PLTGOT"; - case 4: return "DT_HASH"; - case 5: return "DT_STRTAB"; - case 6: return "DT_SYMTAB"; - case 7: return "DT_RELA"; - case 8: return "DT_RELASZ"; - case 9: return "DT_RELAENT"; - case 10: return "DT_STRSZ"; - case 11: return "DT_SYMENT"; - case 12: return "DT_INIT"; - case 13: return "DT_FINI"; - case 14: return "DT_SONAME"; - case 15: return "DT_RPATH"; - case 16: return "DT_SYMBOLIC"; - case 17: return "DT_REL"; - case 18: return "DT_RELSZ"; - case 19: return "DT_RELENT"; - case 20: return "DT_PLTREL"; - case 21: return "DT_DEBUG"; - case 22: return "DT_TEXTREL"; - case 23: return "DT_JMPREL"; - case 24: return "DT_BIND_NOW"; - case 25: return "DT_INIT_ARRAY"; - case 26: return "DT_FINI_ARRAY"; - case 27: return "DT_INIT_ARRAYSZ"; - case 28: return "DT_FINI_ARRAYSZ"; - case 29: return "DT_RUNPATH"; - case 30: return "DT_FLAGS"; - case 32: return "DT_PREINIT_ARRAY"; /* XXX: DT_ENCODING */ - case 33: return "DT_PREINIT_ARRAYSZ"; - /* 0x6000000D - 0x6ffff000 operating system-specific semantics */ - case 0x6ffffdf5: return "DT_GNU_PRELINKED"; - case 0x6ffffdf6: return "DT_GNU_CONFLICTSZ"; - case 0x6ffffdf7: return "DT_GNU_LIBLISTSZ"; - case 0x6ffffdf8: return "DT_SUNW_CHECKSUM"; - case 0x6ffffdf9: return "DT_PLTPADSZ"; - case 0x6ffffdfa: return "DT_MOVEENT"; - case 0x6ffffdfb: return "DT_MOVESZ"; - case 0x6ffffdfc: return "DT_FEATURE"; - case 0x6ffffdfd: return "DT_POSFLAG_1"; - case 0x6ffffdfe: return "DT_SYMINSZ"; - case 0x6ffffdff: return "DT_SYMINENT (DT_VALRNGHI)"; - case 0x6ffffe00: return "DT_ADDRRNGLO"; - case 0x6ffffef8: return "DT_GNU_CONFLICT"; - case 0x6ffffef9: return "DT_GNU_LIBLIST"; - case 0x6ffffefa: return "DT_SUNW_CONFIG"; - case 0x6ffffefb: return "DT_SUNW_DEPAUDIT"; - case 0x6ffffefc: return "DT_SUNW_AUDIT"; - case 0x6ffffefd: return "DT_SUNW_PLTPAD"; - case 0x6ffffefe: return "DT_SUNW_MOVETAB"; - case 0x6ffffeff: return "DT_SYMINFO (DT_ADDRRNGHI)"; - case 0x6ffffff9: return "DT_RELACOUNT"; - case 0x6ffffffa: return "DT_RELCOUNT"; - case 0x6ffffffb: return "DT_FLAGS_1"; - case 0x6ffffffc: return "DT_VERDEF"; - case 0x6ffffffd: return "DT_VERDEFNUM"; - case 0x6ffffffe: return "DT_VERNEED"; - case 0x6fffffff: return "DT_VERNEEDNUM"; - case 0x6ffffff0: return "DT_GNU_VERSYM"; - /* 0x70000000 - 0x7fffffff processor-specific semantics */ - case 0x70000000: return "DT_IA_64_PLT_RESERVE"; - case 0x7ffffffd: return "DT_SUNW_AUXILIARY"; - case 0x7ffffffe: return "DT_SUNW_USED"; - case 0x7fffffff: return "DT_SUNW_FILTER"; - default: return "ERROR: TAG NOT DEFINED"; - } -} - -static const char * -e_machines(u_int mach) -{ - static char machdesc[64]; - - switch (mach) { - case EM_NONE: return "EM_NONE"; - case EM_M32: return "EM_M32"; - case EM_SPARC: return "EM_SPARC"; - case EM_386: return "EM_386"; - case EM_68K: return "EM_68K"; - case EM_88K: return "EM_88K"; - case EM_860: return "EM_860"; - case EM_MIPS: return "EM_MIPS"; - case EM_PPC: return "EM_PPC"; - case EM_ARM: return "EM_ARM"; - case EM_ALPHA: return "EM_ALPHA (legacy)"; - case EM_SPARCV9:return "EM_SPARCV9"; - case EM_IA_64: return "EM_IA_64"; - case EM_X86_64: return "EM_X86_64"; - } - snprintf(machdesc, sizeof(machdesc), - "(unknown machine) -- type 0x%x", mach); - return (machdesc); -} - -const char *e_types[] = { - "ET_NONE", "ET_REL", "ET_EXEC", "ET_DYN", "ET_CORE" -}; - -const char *ei_versions[] = { - "EV_NONE", "EV_CURRENT" -}; - -const char *ei_classes[] = { - "ELFCLASSNONE", "ELFCLASS32", "ELFCLASS64" -}; - -const char *ei_data[] = { - "ELFDATANONE", "ELFDATA2LSB", "ELFDATA2MSB" -}; - -const char *ei_abis[] = { - "ELFOSABI_SYSV", "ELFOSABI_HPUX", "ELFOSABI_NETBSD", "ELFOSABI_LINUX", - "ELFOSABI_HURD", "ELFOSABI_86OPEN", "ELFOSABI_SOLARIS", - "ELFOSABI_MONTEREY", "ELFOSABI_IRIX", "ELFOSABI_FREEBSD", - "ELFOSABI_TRU64", "ELFOSABI_MODESTO", "ELFOSABI_OPENBSD" -}; - -const char *p_types[] = { - "PT_NULL", "PT_LOAD", "PT_DYNAMIC", "PT_INTERP", "PT_NOTE", - "PT_SHLIB", "PT_PHDR", "PT_TLS" -}; +#include <libelf.h> -const char *p_flags[] = { - "", "PF_X", "PF_W", "PF_X|PF_W", "PF_R", "PF_X|PF_R", "PF_W|PF_R", - "PF_X|PF_W|PF_R" -}; - -/* http://www.sco.com/developers/gabi/latest/ch4.sheader.html#sh_type */ -static const char * -sh_types(u_int64_t sht) { - switch (sht) { - case 0: return "SHT_NULL"; - case 1: return "SHT_PROGBITS"; - case 2: return "SHT_SYMTAB"; - case 3: return "SHT_STRTAB"; - case 4: return "SHT_RELA"; - case 5: return "SHT_HASH"; - case 6: return "SHT_DYNAMIC"; - case 7: return "SHT_NOTE"; - case 8: return "SHT_NOBITS"; - case 9: return "SHT_REL"; - case 10: return "SHT_SHLIB"; - case 11: return "SHT_DYNSYM"; - case 14: return "SHT_INIT_ARRAY"; - case 15: return "SHT_FINI_ARRAY"; - case 16: return "SHT_PREINIT_ARRAY"; - case 17: return "SHT_GROUP"; - case 18: return "SHT_SYMTAB_SHNDX"; - /* 0x60000000 - 0x6fffffff operating system-specific semantics */ - case 0x6ffffff0: return "XXX:VERSYM"; - case 0x6ffffff7: return "SHT_GNU_LIBLIST"; - case 0x6ffffffc: return "XXX:VERDEF"; - case 0x6ffffffd: return "SHT_SUNW(GNU)_verdef"; - case 0x6ffffffe: return "SHT_SUNW(GNU)_verneed"; - case 0x6fffffff: return "SHT_SUNW(GNU)_versym"; - /* 0x70000000 - 0x7fffffff processor-specific semantics */ - case 0x70000000: return "SHT_IA_64_EXT"; - case 0x70000001: return "SHT_IA_64_UNWIND"; - case 0x7ffffffd: return "XXX:AUXILIARY"; - case 0x7fffffff: return "XXX:FILTER"; - /* 0x80000000 - 0xffffffff application programs */ - default: return "ERROR: SHT NOT DEFINED"; - } -} - -const char *sh_flags[] = { - "", "SHF_WRITE", "SHF_ALLOC", "SHF_WRITE|SHF_ALLOC", "SHF_EXECINSTR", - "SHF_WRITE|SHF_EXECINSTR", "SHF_ALLOC|SHF_EXECINSTR", - "SHF_WRITE|SHF_ALLOC|SHF_EXECINSTR" -}; - -const char *st_types[] = { - "STT_NOTYPE", "STT_OBJECT", "STT_FUNC", "STT_SECTION", "STT_FILE" -}; - -const char *st_bindings[] = { - "STB_LOCAL", "STB_GLOBAL", "STB_WEAK" -}; - -char *dynstr; -char *shstrtab; -char *strtab; -FILE *out; - -u_int64_t elf_get_byte(Elf32_Ehdr *e, void *base, elf_member_t member); -u_int64_t elf_get_quarter(Elf32_Ehdr *e, void *base, elf_member_t member); -u_int64_t elf_get_half(Elf32_Ehdr *e, void *base, elf_member_t member); -u_int64_t elf_get_word(Elf32_Ehdr *e, void *base, elf_member_t member); -u_int64_t elf_get_quad(Elf32_Ehdr *e, void *base, elf_member_t member); - -void elf_print_ehdr(Elf32_Ehdr *e); -void elf_print_phdr(Elf32_Ehdr *e, void *p); -void elf_print_shdr(Elf32_Ehdr *e, void *sh); -void elf_print_symtab(Elf32_Ehdr *e, void *sh, char *str); -void elf_print_dynamic(Elf32_Ehdr *e, void *sh); -void elf_print_rel(Elf32_Ehdr *e, void *r); -void elf_print_rela(Elf32_Ehdr *e, void *ra); -void elf_print_interp(Elf32_Ehdr *e, void *p); -void elf_print_got(Elf32_Ehdr *e, void *sh); -void elf_print_hash(Elf32_Ehdr *e, void *sh); -void elf_print_note(Elf32_Ehdr *e, void *sh); - -void usage(void); - int -main(int ac, char **av) +main(int argc, char **argv) { - u_int64_t phoff; - u_int64_t shoff; - u_int64_t phentsize; - u_int64_t phnum; - u_int64_t shentsize; - u_int64_t shnum; - u_int64_t shstrndx; - u_int64_t offset; - u_int64_t name; - u_int64_t type; - struct stat sb; - u_int flags; - Elf32_Ehdr *e; - void *p; - void *sh; - void *v; - int fd; - int ch; - int i; - - out = stdout; - flags = 0; - while ((ch = getopt(ac, av, "acdeiGhnprsw:")) != -1) - switch (ch) { - case 'a': - flags = ED_ALL; - break; - case 'c': - flags |= ED_SHDR; - break; - case 'd': - flags |= ED_DYN; - break; - case 'e': - flags |= ED_EHDR; - break; - case 'i': - flags |= ED_INTERP; - break; - case 'G': - flags |= ED_GOT; - break; - case 'h': - flags |= ED_HASH; - break; - case 'n': - flags |= ED_NOTE; - break; - case 'p': - flags |= ED_PHDR; - break; - case 'r': - flags |= ED_REL; - break; - case 's': - flags |= ED_SYMTAB; - break; - case 'w': - if ((out = fopen(optarg, "w")) == NULL) - err(1, "%s", optarg); - break; - case '?': - default: - usage(); - } - ac -= optind; - av += optind; - if (ac == 0 || flags == 0) - usage(); - if ((fd = open(*av, O_RDONLY)) < 0 || - fstat(fd, &sb) < 0) - err(1, "%s", *av); - e = mmap(NULL, sb.st_size, PROT_READ, MAP_SHARED, fd, 0); - if (e == MAP_FAILED) - err(1, NULL); - if (!IS_ELF(*(Elf32_Ehdr *)e)) - errx(1, "not an elf file"); - phoff = elf_get_off(e, e, E_PHOFF); - shoff = elf_get_off(e, e, E_SHOFF); - phentsize = elf_get_quarter(e, e, E_PHENTSIZE); - phnum = elf_get_quarter(e, e, E_PHNUM); - shentsize = elf_get_quarter(e, e, E_SHENTSIZE); - shnum = elf_get_quarter(e, e, E_SHNUM); - shstrndx = elf_get_quarter(e, e, E_SHSTRNDX); - p = (char *)e + phoff; - sh = (char *)e + shoff; - offset = elf_get_off(e, (char *)sh + shstrndx * shentsize, SH_OFFSET); - shstrtab = (char *)e + offset; - for (i = 0; (u_int64_t)i < shnum; i++) { - name = elf_get_word(e, (char *)sh + i * shentsize, SH_NAME); - offset = elf_get_off(e, (char *)sh + i * shentsize, SH_OFFSET); - if (strcmp(shstrtab + name, ".strtab") == 0) - strtab = (char *)e + offset; - if (strcmp(shstrtab + name, ".dynstr") == 0) - dynstr = (char *)e + offset; - } - if (flags & ED_EHDR) - elf_print_ehdr(e); - if (flags & ED_PHDR) - elf_print_phdr(e, p); - if (flags & ED_SHDR) - elf_print_shdr(e, sh); - for (i = 0; (u_int64_t)i < phnum; i++) { - v = (char *)p + i * phentsize; - type = elf_get_word(e, v, P_TYPE); - switch (type) { - case PT_INTERP: - if (flags & ED_INTERP) - elf_print_interp(e, v); - break; - case PT_NULL: - case PT_LOAD: - case PT_DYNAMIC: - case PT_NOTE: - case PT_SHLIB: - case PT_PHDR: - break; - } - } - for (i = 0; (u_int64_t)i < shnum; i++) { - v = (char *)sh + i * shentsize; - type = elf_get_word(e, v, SH_TYPE); - switch (type) { - case SHT_SYMTAB: - if (flags & ED_SYMTAB) - elf_print_symtab(e, v, strtab); - break; - case SHT_DYNAMIC: - if (flags & ED_DYN) - elf_print_dynamic(e, v); - break; - case SHT_RELA: - if (flags & ED_REL) - elf_print_rela(e, v); - break; - case SHT_REL: - if (flags & ED_REL) - elf_print_rel(e, v); - break; - case SHT_NOTE: - name = elf_get_word(e, v, SH_NAME); - if (flags & ED_NOTE && - strcmp(shstrtab + name, ".note.ABI-tag") == 0) - elf_print_note(e, v); - break; - case SHT_DYNSYM: - if (flags & ED_SYMTAB) - elf_print_symtab(e, v, dynstr); - break; - case SHT_PROGBITS: - name = elf_get_word(e, v, SH_NAME); - if (flags & ED_GOT && - strcmp(shstrtab + name, ".got") == 0) - elf_print_got(e, v); - break; - case SHT_HASH: - if (flags & ED_HASH) - elf_print_hash(e, v); - break; - case SHT_NULL: - case SHT_STRTAB: - case SHT_NOBITS: - case SHT_SHLIB: - break; - } - } - - return 0; + return (elf_dump_argv(argc, argv)); } -void -elf_print_ehdr(Elf32_Ehdr *e) -{ - u_int64_t class; - u_int64_t data; - u_int64_t osabi; - u_int64_t type; - u_int64_t machine; - u_int64_t version; - u_int64_t entry; - u_int64_t phoff; - u_int64_t shoff; - u_int64_t flags; - u_int64_t ehsize; - u_int64_t phentsize; - u_int64_t phnum; - u_int64_t shentsize; - u_int64_t shnum; - u_int64_t shstrndx; - - class = elf_get_byte(e, e, E_CLASS); - data = elf_get_byte(e, e, E_DATA); - osabi = elf_get_byte(e, e, E_OSABI); - type = elf_get_quarter(e, e, E_TYPE); - machine = elf_get_quarter(e, e, E_MACHINE); - version = elf_get_word(e, e, E_VERSION); - entry = elf_get_addr(e, e, E_ENTRY); - phoff = elf_get_off(e, e, E_PHOFF); - shoff = elf_get_off(e, e, E_SHOFF); - flags = elf_get_word(e, e, E_FLAGS); - ehsize = elf_get_quarter(e, e, E_EHSIZE); - phentsize = elf_get_quarter(e, e, E_PHENTSIZE); - phnum = elf_get_quarter(e, e, E_PHNUM); - shentsize = elf_get_quarter(e, e, E_SHENTSIZE); - shnum = elf_get_quarter(e, e, E_SHNUM); - shstrndx = elf_get_quarter(e, e, E_SHSTRNDX); - fprintf(out, "\nelf header:\n"); - fprintf(out, "\n"); - fprintf(out, "\te_ident: %s %s %s\n", ei_classes[class], ei_data[data], - ei_abis[osabi]); - fprintf(out, "\te_type: %s\n", e_types[type]); - fprintf(out, "\te_machine: %s\n", e_machines(machine)); - fprintf(out, "\te_version: %s\n", ei_versions[version]); - fprintf(out, "\te_entry: %#jx\n", (intmax_t)entry); - fprintf(out, "\te_phoff: %jd\n", (intmax_t)phoff); - fprintf(out, "\te_shoff: %jd\n", (intmax_t)shoff); - fprintf(out, "\te_flags: %jd\n", (intmax_t)flags); - fprintf(out, "\te_ehsize: %jd\n", (intmax_t)ehsize); - fprintf(out, "\te_phentsize: %jd\n", (intmax_t)phentsize); - fprintf(out, "\te_phnum: %jd\n", (intmax_t)phnum); - fprintf(out, "\te_shentsize: %jd\n", (intmax_t)shentsize); - fprintf(out, "\te_shnum: %jd\n", (intmax_t)shnum); - fprintf(out, "\te_shstrndx: %jd\n", (intmax_t)shstrndx); -} - -void -elf_print_phdr(Elf32_Ehdr *e, void *p) -{ - u_int64_t phentsize; - u_int64_t phnum; - u_int64_t type; - u_int64_t offset; - u_int64_t vaddr; - u_int64_t paddr; - u_int64_t filesz; - u_int64_t memsz; - u_int64_t flags; - u_int64_t align; - void *v; - int i; - - phentsize = elf_get_quarter(e, e, E_PHENTSIZE); - phnum = elf_get_quarter(e, e, E_PHNUM); - fprintf(out, "\nprogram header:\n"); - for (i = 0; (u_int64_t)i < phnum; i++) { - v = (char *)p + i * phentsize; - type = elf_get_word(e, v, P_TYPE); - offset = elf_get_off(e, v, P_OFFSET); - vaddr = elf_get_addr(e, v, P_VADDR); - paddr = elf_get_addr(e, v, P_PADDR); - filesz = elf_get_size(e, v, P_FILESZ); - memsz = elf_get_size(e, v, P_MEMSZ); - flags = elf_get_word(e, v, P_FLAGS); - align = elf_get_size(e, v, P_ALIGN); - fprintf(out, "\n"); - fprintf(out, "entry: %d\n", i); - fprintf(out, "\tp_type: %s\n", p_types[type & 0x7]); - fprintf(out, "\tp_offset: %jd\n", (intmax_t)offset); - fprintf(out, "\tp_vaddr: %#jx\n", (intmax_t)vaddr); - fprintf(out, "\tp_paddr: %#jx\n", (intmax_t)paddr); - fprintf(out, "\tp_filesz: %jd\n", (intmax_t)filesz); - fprintf(out, "\tp_memsz: %jd\n", (intmax_t)memsz); - fprintf(out, "\tp_flags: %s\n", p_flags[flags]); - fprintf(out, "\tp_align: %jd\n", (intmax_t)align); - } -} - -void -elf_print_shdr(Elf32_Ehdr *e, void *sh) -{ - u_int64_t shentsize; - u_int64_t shnum; - u_int64_t name; - u_int64_t type; - u_int64_t flags; - u_int64_t addr; - u_int64_t offset; - u_int64_t size; - u_int64_t shlink; - u_int64_t info; - u_int64_t addralign; - u_int64_t entsize; - void *v; - int i; - - shentsize = elf_get_quarter(e, e, E_SHENTSIZE); - shnum = elf_get_quarter(e, e, E_SHNUM); - fprintf(out, "\nsection header:\n"); - for (i = 0; (u_int64_t)i < shnum; i++) { - v = (char *)sh + i * shentsize; - name = elf_get_word(e, v, SH_NAME); - type = elf_get_word(e, v, SH_TYPE); - flags = elf_get_word(e, v, SH_FLAGS); - addr = elf_get_addr(e, v, SH_ADDR); - offset = elf_get_off(e, v, SH_OFFSET); - size = elf_get_size(e, v, SH_SIZE); - shlink = elf_get_word(e, v, SH_LINK); - info = elf_get_word(e, v, SH_INFO); - addralign = elf_get_size(e, v, SH_ADDRALIGN); - entsize = elf_get_size(e, v, SH_ENTSIZE); - fprintf(out, "\n"); - fprintf(out, "entry: %d\n", i); - fprintf(out, "\tsh_name: %s\n", shstrtab + name); - fprintf(out, "\tsh_type: %s\n", sh_types(type)); - fprintf(out, "\tsh_flags: %s\n", sh_flags[flags & 0x7]); - fprintf(out, "\tsh_addr: %#jx\n", addr); - fprintf(out, "\tsh_offset: %jd\n", (intmax_t)offset); - fprintf(out, "\tsh_size: %jd\n", (intmax_t)size); - fprintf(out, "\tsh_link: %jd\n", (intmax_t)shlink); - fprintf(out, "\tsh_info: %jd\n", (intmax_t)info); - fprintf(out, "\tsh_addralign: %jd\n", (intmax_t)addralign); - fprintf(out, "\tsh_entsize: %jd\n", (intmax_t)entsize); - } -} - -void -elf_print_symtab(Elf32_Ehdr *e, void *sh, char *str) -{ - u_int64_t offset; - u_int64_t entsize; - u_int64_t size; - u_int64_t name; - u_int64_t value; - u_int64_t info; - u_int64_t shndx; - void *st; - int len; - int i; - - offset = elf_get_off(e, sh, SH_OFFSET); - entsize = elf_get_size(e, sh, SH_ENTSIZE); - size = elf_get_size(e, sh, SH_SIZE); - name = elf_get_word(e, sh, SH_NAME); - len = size / entsize; - fprintf(out, "\nsymbol table (%s):\n", shstrtab + name); - for (i = 0; i < len; i++) { - st = (char *)e + offset + i * entsize; - name = elf_get_word(e, st, ST_NAME); - value = elf_get_addr(e, st, ST_VALUE); - size = elf_get_size(e, st, ST_SIZE); - info = elf_get_byte(e, st, ST_INFO); - shndx = elf_get_quarter(e, st, ST_SHNDX); - fprintf(out, "\n"); - fprintf(out, "entry: %d\n", i); - fprintf(out, "\tst_name: %s\n", str + name); - fprintf(out, "\tst_value: %#jx\n", value); - fprintf(out, "\tst_size: %jd\n", (intmax_t)size); - fprintf(out, "\tst_info: %s %s\n", - st_types[ELF32_ST_TYPE(info)], - st_bindings[ELF32_ST_BIND(info)]); - fprintf(out, "\tst_shndx: %jd\n", (intmax_t)shndx); - } -} - -void -elf_print_dynamic(Elf32_Ehdr *e, void *sh) -{ - u_int64_t offset; - u_int64_t entsize; - u_int64_t size; - int64_t tag; - u_int64_t ptr; - u_int64_t val; - void *d; - int i; - - offset = elf_get_off(e, sh, SH_OFFSET); - entsize = elf_get_size(e, sh, SH_ENTSIZE); - size = elf_get_size(e, sh, SH_SIZE); - fprintf(out, "\ndynamic:\n"); - for (i = 0; (u_int64_t)i < size / entsize; i++) { - d = (char *)e + offset + i * entsize; - tag = elf_get_size(e, d, D_TAG); - ptr = elf_get_size(e, d, D_PTR); - val = elf_get_addr(e, d, D_VAL); - fprintf(out, "\n"); - fprintf(out, "entry: %d\n", i); - fprintf(out, "\td_tag: %s\n", d_tags(tag)); - switch (tag) { - case DT_NEEDED: - case DT_SONAME: - case DT_RPATH: - fprintf(out, "\td_val: %s\n", dynstr + val); - break; - case DT_PLTRELSZ: - case DT_RELA: - case DT_RELASZ: - case DT_RELAENT: - case DT_STRSZ: - case DT_SYMENT: - case DT_RELSZ: - case DT_RELENT: - case DT_PLTREL: - fprintf(out, "\td_val: %jd\n", (intmax_t)val); - break; - case DT_PLTGOT: - case DT_HASH: - case DT_STRTAB: - case DT_SYMTAB: - case DT_INIT: - case DT_FINI: - case DT_REL: - case DT_JMPREL: - fprintf(out, "\td_ptr: %#jx\n", ptr); - break; - case DT_NULL: - case DT_SYMBOLIC: - case DT_DEBUG: - case DT_TEXTREL: - break; - } - } -} - -void -elf_print_rela(Elf32_Ehdr *e, void *sh) -{ - u_int64_t offset; - u_int64_t entsize; - u_int64_t size; - u_int64_t name; - u_int64_t info; - int64_t addend; - void *ra; - void *v; - int i; - - offset = elf_get_off(e, sh, SH_OFFSET); - entsize = elf_get_size(e, sh, SH_ENTSIZE); - size = elf_get_size(e, sh, SH_SIZE); - name = elf_get_word(e, sh, SH_NAME); - v = (char *)e + offset; - fprintf(out, "\nrelocation with addend (%s):\n", shstrtab + name); - for (i = 0; (u_int64_t)i < size / entsize; i++) { - ra = (char *)v + i * entsize; - offset = elf_get_addr(e, ra, RA_OFFSET); - info = elf_get_word(e, ra, RA_INFO); - addend = elf_get_off(e, ra, RA_ADDEND); - fprintf(out, "\n"); - fprintf(out, "entry: %d\n", i); - fprintf(out, "\tr_offset: %#jx\n", offset); - fprintf(out, "\tr_info: %jd\n", (intmax_t)info); - fprintf(out, "\tr_addend: %jd\n", (intmax_t)addend); - } -} - -void -elf_print_rel(Elf32_Ehdr *e, void *sh) -{ - u_int64_t offset; - u_int64_t entsize; - u_int64_t size; - u_int64_t name; - u_int64_t info; - void *r; - void *v; - int i; - - offset = elf_get_off(e, sh, SH_OFFSET); - entsize = elf_get_size(e, sh, SH_ENTSIZE); - size = elf_get_size(e, sh, SH_SIZE); - name = elf_get_word(e, sh, SH_NAME); - v = (char *)e + offset; - fprintf(out, "\nrelocation (%s):\n", shstrtab + name); - for (i = 0; (u_int64_t)i < size / entsize; i++) { - r = (char *)v + i * entsize; - offset = elf_get_addr(e, r, R_OFFSET); - info = elf_get_word(e, r, R_INFO); - fprintf(out, "\n"); - fprintf(out, "entry: %d\n", i); - fprintf(out, "\tr_offset: %#jx\n", offset); - fprintf(out, "\tr_info: %jd\n", (intmax_t)info); - } -} - -void -elf_print_interp(Elf32_Ehdr *e, void *p) -{ - u_int64_t offset; - char *s; - - offset = elf_get_off(e, p, P_OFFSET); - s = (char *)e + offset; - fprintf(out, "\ninterp:\n"); - fprintf(out, "\t%s\n", s); -} - -void -elf_print_got(Elf32_Ehdr *e, void *sh) -{ - u_int64_t offset; - u_int64_t addralign; - u_int64_t size; - u_int64_t addr; - void *v; - int i; - - offset = elf_get_off(e, sh, SH_OFFSET); - addralign = elf_get_size(e, sh, SH_ADDRALIGN); - size = elf_get_size(e, sh, SH_SIZE); - v = (char *)e + offset; - fprintf(out, "\nglobal offset table:\n"); - for (i = 0; (u_int64_t)i < size / addralign; i++) { - addr = elf_get_addr(e, (char *)v + i * addralign, 0); - fprintf(out, "\n"); - fprintf(out, "entry: %d\n", i); - fprintf(out, "\t%#jx\n", addr); - } -} - -void -elf_print_hash(Elf32_Ehdr *e __unused, void *sh __unused) -{ -} - -void -elf_print_note(Elf32_Ehdr *e, void *sh) -{ - u_int64_t offset; - u_int64_t size; - u_int64_t name; - u_int32_t namesz; - u_int32_t descsz; - u_int32_t type; - u_int32_t desc; - char *n, *s; - - offset = elf_get_off(e, sh, SH_OFFSET); - size = elf_get_size(e, sh, SH_SIZE); - name = elf_get_word(e, sh, SH_NAME); - n = (char *)e + offset; - fprintf(out, "\nnote (%s):\n", shstrtab + name); - while (n < ((char *)e + offset + size)) { - namesz = elf_get_word(e, n, N_NAMESZ); - descsz = elf_get_word(e, n, N_DESCSZ); - type = elf_get_word(e, n, N_TYPE); - s = n + sizeof(Elf_Note); - desc = elf_get_word(e, n + sizeof(Elf_Note) + namesz, 0); - fprintf(out, "\t%s %d\n", s, desc); - n += sizeof(Elf_Note) + namesz + descsz; - } -} - -u_int64_t -elf_get_byte(Elf32_Ehdr *e, void *base, elf_member_t member) -{ - u_int64_t val; - - val = 0; - switch (e->e_ident[EI_CLASS]) { - case ELFCLASS32: - val = ((char *)base)[elf32_offsets[member]]; - break; - case ELFCLASS64: - val = ((char *)base)[elf64_offsets[member]]; - break; - case ELFCLASSNONE: - errx(1, "invalid class"); - } - - return val; -} - -u_int64_t -elf_get_quarter(Elf32_Ehdr *e, void *base, elf_member_t member) -{ - u_int64_t val; - - val = 0; - switch (e->e_ident[EI_CLASS]) { - case ELFCLASS32: - base = (char *)base + elf32_offsets[member]; - switch (e->e_ident[EI_DATA]) { - case ELFDATA2MSB: - val = be16dec(base); - break; - case ELFDATA2LSB: - val = le16dec(base); - break; - case ELFDATANONE: - errx(1, "invalid data format"); - } - break; - case ELFCLASS64: - base = (char *)base + elf64_offsets[member]; - switch (e->e_ident[EI_DATA]) { - case ELFDATA2MSB: - val = be16dec(base); - break; - case ELFDATA2LSB: - val = le16dec(base); - break; - case ELFDATANONE: - errx(1, "invalid data format"); - } - break; - case ELFCLASSNONE: - errx(1, "invalid class"); - } - - return val; -} - -u_int64_t -elf_get_half(Elf32_Ehdr *e, void *base, elf_member_t member) -{ - u_int64_t val; - - val = 0; - switch (e->e_ident[EI_CLASS]) { - case ELFCLASS32: - base = (char *)base + elf32_offsets[member]; - switch (e->e_ident[EI_DATA]) { - case ELFDATA2MSB: - val = be16dec(base); - break; - case ELFDATA2LSB: - val = le16dec(base); >>> TRUNCATED FOR MAIL (1000 lines) <<<
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