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-rw-r--r--usr.bin/elfdump/Makefile6
-rw-r--r--usr.bin/elfdump/elfdump.c1004
2 files changed, 1010 insertions, 0 deletions
diff --git a/usr.bin/elfdump/Makefile b/usr.bin/elfdump/Makefile
new file mode 100644
index 0000000..9ad3ffa
--- /dev/null
+++ b/usr.bin/elfdump/Makefile
@@ -0,0 +1,6 @@
+# $FreeBSD$
+
+PROG= elfdump
+NOMAN=
+
+.include <bsd.prog.mk>
diff --git a/usr.bin/elfdump/elfdump.c b/usr.bin/elfdump/elfdump.c
new file mode 100644
index 0000000..b72daba
--- /dev/null
+++ b/usr.bin/elfdump/elfdump.c
@@ -0,0 +1,1004 @@
+/*-
+ * Copyright (c) 2001 Jake Burkholder
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/types.h>
+#include <sys/elf32.h>
+#include <sys/elf64.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <err.h>
+#include <fcntl.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)
+};
+
+char *d_tags[] = {
+ "DT_NULL", "DT_NEEDED", "DT_PLTRELSZ", "DT_PLTGOT", "DT_HASH",
+ "DT_STRTAB", "DT_SYMTAB", "DT_RELA", "DT_RELASZ", "DT_RELAENT",
+ "DT_STRSZ", "DT_SYMENT", "DT_INIT", "DT_FINI", "DT_SONAME",
+ "DT_RPATH", "DT_SYMBOLIC", "DT_REL", "DT_RELSZ", "DT_RELENT",
+ "DT_PLTREL", "DT_DEBUG", "DT_TEXTREL", "DT_JMPREL"
+};
+
+char *e_machines[] = {
+ "EM_NONE", "EM_M32", "EM_SPARC", "EM_386", "EM_68K", "EM_88K",
+ "EM_486", "EM_860", "EM_MIPS"
+};
+
+char *e_types[] = {
+ "ET_NONE", "ET_REL", "ET_EXEC", "ET_DYN", "ET_CORE"
+};
+
+char *ei_versions[] = {
+ "EV_NONE", "EV_CURRENT"
+};
+
+char *ei_classes[] = {
+ "ELFCLASSNONE", "ELFCLASS32", "ELFCLASS64"
+};
+
+char *ei_data[] = {
+ "ELFDATANONE", "ELFDATA2LSB", "ELFDATA2MSB"
+};
+
+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"
+};
+
+char *p_types[] = {
+ "PT_NULL", "PT_LOAD", "PT_DYNAMIC", "PT_INTERP", "PT_NOTE",
+ "PT_SHLIB", "PT_PHDR"
+};
+
+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"
+};
+
+char *sh_types[] = {
+ "SHT_NULL", "SHT_PROGBITS", "SHT_SYMTAB", "SHT_STRTAB",
+ "SHT_RELA", "SHT_HASH", "SHT_DYNAMIC", "SHT_NOTE", "SHT_NOBITS",
+ "SHT_REL", "SHT_SHLIB", "SHT_DYNSYM"
+};
+
+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"
+};
+
+char *st_types[] = {
+ "STT_NOTYPE", "STT_OBJECT", "STT_FUNC", "STT_SECTION", "STT_FILE"
+};
+
+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(void *e);
+void elf_print_phdr(void *e, void *p);
+void elf_print_shdr(void *e, void *sh);
+void elf_print_symtab(void *e, void *sh, char *str);
+void elf_print_dynamic(void *e, void *sh);
+void elf_print_rel(void *e, void *r);
+void elf_print_rela(void *e, void *ra);
+void elf_print_interp(void *e, void *p);
+void elf_print_got(void *e, void *sh);
+void elf_print_hash(void *e, void *sh);
+void elf_print_note(void *e, void *sh);
+
+void usage(void);
+
+int
+main(int ac, char **av)
+{
+ 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;
+ void *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, NULL);
+ 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 = e + phoff;
+ sh = e + shoff;
+ offset = elf_get_off(e, sh + shstrndx * shentsize, SH_OFFSET);
+ shstrtab = e + offset;
+ for (i = 0; i < shnum; i++) {
+ name = elf_get_word(e, sh + i * shentsize, SH_NAME);
+ offset = elf_get_off(e, sh + i * shentsize, SH_OFFSET);
+ if (strcmp(shstrtab + name, ".strtab") == 0)
+ strtab = e + offset;
+ if (strcmp(shstrtab + name, ".dynstr") == 0)
+ dynstr = 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; i < phnum; i++) {
+ v = 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; i < shnum; i++) {
+ v = 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;
+}
+
+void
+elf_print_ehdr(void *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]);
+ if (machine < sizeof e_machines / sizeof *e_machines)
+ fprintf(out, "\te_machine: %s\n", e_machines[machine]);
+ else
+ fprintf(out, "\te_machine: %lld\n", machine);
+ fprintf(out, "\te_version: %s\n", ei_versions[version]);
+ fprintf(out, "\te_entry: %#llx\n", entry);
+ fprintf(out, "\te_phoff: %lld\n", phoff);
+ fprintf(out, "\te_shoff: %lld\n", shoff);
+ fprintf(out, "\te_flags: %lld\n", flags);
+ fprintf(out, "\te_ehsize: %lld\n", ehsize);
+ fprintf(out, "\te_phentsize: %lld\n", phentsize);
+ fprintf(out, "\te_phnum: %lld\n", phnum);
+ fprintf(out, "\te_shentsize: %lld\n", shentsize);
+ fprintf(out, "\te_shnum: %lld\n", shnum);
+ fprintf(out, "\te_shstrndx: %lld\n", shstrndx);
+}
+
+void
+elf_print_phdr(void *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; i < phnum; i++) {
+ v = 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: %lld\n", offset);
+ fprintf(out, "\tp_vaddr: %#llx\n", vaddr);
+ fprintf(out, "\tp_paddr: %#llx\n", paddr);
+ fprintf(out, "\tp_filesz: %lld\n", filesz);
+ fprintf(out, "\tp_memsz: %lld\n", memsz);
+ fprintf(out, "\tp_flags: %s\n", p_flags[flags]);
+ fprintf(out, "\tp_align: %lld\n", align);
+ }
+}
+
+void
+elf_print_shdr(void *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 link;
+ 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; i < shnum; i++) {
+ v = 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);
+ link = 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: %#llx\n", addr);
+ fprintf(out, "\tsh_offset: %lld\n", offset);
+ fprintf(out, "\tsh_size: %lld\n", size);
+ fprintf(out, "\tsh_link: %lld\n", link);
+ fprintf(out, "\tsh_info: %lld\n", info);
+ fprintf(out, "\tsh_addralign: %lld\n", addralign);
+ fprintf(out, "\tsh_entsize: %lld\n", entsize);
+ }
+}
+
+void
+elf_print_symtab(void *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 = 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: %#llx\n", value);
+ fprintf(out, "\tst_size: %lld\n", size);
+ fprintf(out, "\tst_info: %s %s\n",
+ st_types[ELF32_ST_TYPE(info)],
+ st_bindings[ELF32_ST_BIND(info)]);
+ fprintf(out, "\tst_shndx: %lld\n", shndx);
+ }
+}
+
+void
+elf_print_dynamic(void *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; i < size / entsize; i++) {
+ d = 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: %lld\n", 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: %#llx\n", ptr);
+ break;
+ case DT_NULL:
+ case DT_SYMBOLIC:
+ case DT_DEBUG:
+ case DT_TEXTREL:
+ break;
+ }
+ }
+}
+
+void
+elf_print_rela(void *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 = e + offset;
+ fprintf(out, "\nrelocation with addend (%s):\n", shstrtab + name);
+ for (i = 0; i < size / entsize; i++) {
+ ra = 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: %#llx\n", offset);
+ fprintf(out, "\tr_info: %lld\n", info);
+ fprintf(out, "\tr_addend: %lld\n", addend);
+ }
+}
+
+void
+elf_print_rel(void *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 = e + offset;
+ fprintf(out, "\nrelocation (%s):\n", shstrtab + name);
+ for (i = 0; i < size / entsize; i++) {
+ r = 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: %#llx\n", offset);
+ fprintf(out, "\tr_info: %lld\n", info);
+ }
+}
+
+void
+elf_print_interp(void *e, void *p)
+{
+ u_int64_t offset;
+ char *s;
+
+ offset = elf_get_off(e, p, P_OFFSET);
+ s = e + offset;
+ fprintf(out, "\ninterp:\n");
+ fprintf(out, "\t%s\n", s);
+}
+
+void
+elf_print_got(void *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 = e + offset;
+ fprintf(out, "\nglobal offset table:\n");
+ for (i = 0; i < size / addralign; i++) {
+ addr = elf_get_addr(e, v + i * addralign, 0);
+ fprintf(out, "\n");
+ fprintf(out, "entry: %d\n", i);
+ fprintf(out, "\t%#llx\n", addr);
+ }
+}
+
+void
+elf_print_hash(void *e, void *sh)
+{
+}
+
+void
+elf_print_note(void *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 *s;
+ void *n;
+
+ 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 = e + offset;
+ fprintf(out, "\nnote (%s):\n", shstrtab + name);
+ while (n < 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;
+ u_char *p;
+
+ val = 0;
+ switch (e->e_ident[EI_CLASS]) {
+ case ELFCLASS32:
+ p = base + elf32_offsets[member];
+ val = *p;
+ break;
+ case ELFCLASS64:
+ p = base + elf64_offsets[member];
+ val = *p;
+ 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;
+ u_char *p;
+
+ val = 0;
+ switch (e->e_ident[EI_CLASS]) {
+ case ELFCLASS32:
+ p = base + elf32_offsets[member];
+ switch (e->e_ident[EI_DATA]) {
+ case ELFDATA2MSB:
+ val = p[0] << 8 | p[1];
+ break;
+ case ELFDATA2LSB:
+ val = p[1] << 8 | p[0];
+ break;
+ case ELFDATANONE:
+ errx(1, "invalid data format");
+ }
+ break;
+ case ELFCLASS64:
+ p = base + elf64_offsets[member];
+ switch (e->e_ident[EI_DATA]) {
+ case ELFDATA2MSB:
+ val = p[0] << 8 | p[1];
+ break;
+ case ELFDATA2LSB:
+ val = p[1] << 8 | p[0];
+ 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;
+ u_char *p;
+
+ val = 0;
+ switch (e->e_ident[EI_CLASS]) {
+ case ELFCLASS32:
+ p = base + elf32_offsets[member];
+ switch (e->e_ident[EI_DATA]) {
+ case ELFDATA2MSB:
+ val = p[0] << 8 | p[1];
+ break;
+ case ELFDATA2LSB:
+ val = p[1] << 8 | p[0];
+ break;
+ case ELFDATANONE:
+ errx(1, "invalid data format");
+ }
+ break;
+ case ELFCLASS64:
+ p = base + elf64_offsets[member];
+ switch (e->e_ident[EI_DATA]) {
+ case ELFDATA2MSB:
+ val = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
+ break;
+ case ELFDATA2LSB:
+ val = p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
+ break;
+ case ELFDATANONE:
+ errx(1, "invalid data format");
+ }
+ break;
+ case ELFCLASSNONE:
+ errx(1, "invalid class");
+ }
+
+ return val;
+}
+
+u_int64_t
+elf_get_word(Elf32_Ehdr *e, void *base, elf_member_t member)
+{
+ u_int64_t val;
+ u_char *p;
+
+ val = 0;
+ switch (e->e_ident[EI_CLASS]) {
+ case ELFCLASS32:
+ p = base + elf32_offsets[member];
+ switch (e->e_ident[EI_DATA]) {
+ case ELFDATA2MSB:
+ val = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
+ break;
+ case ELFDATA2LSB:
+ val = p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
+ break;
+ case ELFDATANONE:
+ errx(1, "invalid data format");
+ }
+ break;
+ case ELFCLASS64:
+ p = base + elf64_offsets[member];
+ switch (e->e_ident[EI_DATA]) {
+ case ELFDATA2MSB:
+ val = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
+ break;
+ case ELFDATA2LSB:
+ val = p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
+ break;
+ case ELFDATANONE:
+ errx(1, "invalid data format");
+ }
+ break;
+ case ELFCLASSNONE:
+ errx(1, "invalid class");
+ }
+
+ return val;
+}
+
+u_int64_t
+elf_get_quad(Elf32_Ehdr *e, void *base, elf_member_t member)
+{
+ u_int64_t high;
+ u_int64_t low;
+ u_int64_t val;
+ u_char *p;
+
+ val = 0;
+ switch (e->e_ident[EI_CLASS]) {
+ case ELFCLASS32:
+ p = base + elf32_offsets[member];
+ switch (e->e_ident[EI_DATA]) {
+ case ELFDATA2MSB:
+ val = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
+ break;
+ case ELFDATA2LSB:
+ val = p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
+ break;
+ case ELFDATANONE:
+ errx(1, "invalid data format");
+ }
+ break;
+ case ELFCLASS64:
+ p = base + elf64_offsets[member];
+ switch (e->e_ident[EI_DATA]) {
+ case ELFDATA2MSB:
+ high = p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
+ low = p[4] << 24 | p[5] << 16 | p[6] << 8 | p[7];
+ val = high << 32 | low;
+ break;
+ case ELFDATA2LSB:
+ high = p[7] << 24 | p[6] << 16 | p[5] << 8 | p[4];
+ low = p[3] << 24 | p[2] << 16 | p[1] << 8 | p[0];
+ val = high << 32 | low;
+ break;
+ case ELFDATANONE:
+ errx(1, "invalid data format");
+ }
+ break;
+ case ELFCLASSNONE:
+ errx(1, "invalid class");
+ }
+
+ return val;
+}
+
+void
+usage(void)
+{
+ fprintf(stderr, "usage: elfdump [-acdeiGhnprs] [-w file] filename\n");
+ exit(1);
+}
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