diff options
author | Kai Wang <kaiw@FreeBSD.org> | 2014-01-15 08:43:20 +0000 |
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committer | Kai Wang <kaiw@FreeBSD.org> | 2014-01-15 08:43:20 +0000 |
commit | 5265ace0e440a23fb522c516f4ee20f43eaed2b3 (patch) | |
tree | 13068447bb61372f7540b168e913b8eb88ef7578 /elfdump | |
download | src-test2-5265ace0e440a23fb522c516f4ee20f43eaed2b3.tar.gz src-test2-5265ace0e440a23fb522c516f4ee20f43eaed2b3.zip |
Notes
Diffstat (limited to 'elfdump')
-rw-r--r-- | elfdump/Makefile | 11 | ||||
-rw-r--r-- | elfdump/elfdump.1 | 158 | ||||
-rw-r--r-- | elfdump/elfdump.c | 2821 |
3 files changed, 2990 insertions, 0 deletions
diff --git a/elfdump/Makefile b/elfdump/Makefile new file mode 100644 index 000000000000..b78d4652664e --- /dev/null +++ b/elfdump/Makefile @@ -0,0 +1,11 @@ +# $Id: Makefile 2289 2011-12-04 07:11:47Z jkoshy $ + +TOP= .. + +PROG= elfdump +WARNS?= 6 + +DPADD= ${LIBELFTC} ${LIBELF} +LDADD= -lelftc -lelf + +.include "${TOP}/mk/elftoolchain.prog.mk" diff --git a/elfdump/elfdump.1 b/elfdump/elfdump.1 new file mode 100644 index 000000000000..80b2c244dc06 --- /dev/null +++ b/elfdump/elfdump.1 @@ -0,0 +1,158 @@ +.\" Copyright (c) 2003 David O'Brien +.\" 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. +.\" +.\" $FreeBSD: src/usr.bin/elfdump/elfdump.1,v 1.6 2005/01/18 13:43:48 ru Exp $ +.\" $Id: elfdump.1 2069 2011-10-26 15:53:48Z jkoshy $ +.\" +.Dd August 25, 2011 +.Dt ELFDUMP 1 +.Os +.Sh NAME +.Nm elfdump +.Nd "display information about" +.Tn ELF +files +.Sh SYNOPSIS +.Nm +.Fl a | cdeGhiknprsv +.Op Fl S +.Op Fl V +.Op Fl N Ar name +.Op Fl w Ar file +.Ar file ... +.Sh DESCRIPTION +The +.Nm +utility +dumps various information about the specified +.Tn ELF +.Ar file . +.Pp +The options are as follows: +.Bl -tag -width ".Fl w Ar file" +.It Fl a +Dump all information. +.It Fl c +Dump shared headers. +.It Fl d +Dump dynamic symbols. +.It Fl e +Dump ELF header. +.It Fl G +Dump the GOT. +.It Fl h +Dump the hash values. +.It Fl i +Dump the dynamic interpreter. +.It Fl k +Dump the ELF checksum. +.It Fl n +Dump note sections. +.It Fl N Ar name +Only dump the section with the specific +.Ar name . +Archive symbol table can be specified with +the special section name ARSYM. +More than one +.Fl N +option may appear. +.It Fl p +Dump the program header. +.It Fl r +Dump relocations. +.It Fl s +Dump the symbol table. +.It Fl S +Output in the Solaris +.Nm +format. +.It Fl v +Dump the symbol-versioning sections. +.It Fl V +Print a version identifier and exit. +.It Fl w Ar file +Write output to a +.Ar file +instead of the standard output. +.El +.Sh EXIT STATUS +.Ex -std +.Sh EXAMPLES +The following is an example of a typical usage +of the +.Nm +command: +.Pp +.Dl "elfdump -a -w output /bin/ls" +.Pp +To dump the content of '.dynsym' symbol table: +.Pp +.Dl "elfdump -s -N .dynsym /bin/ls" +.Pp +To dump the archive symbol table, +but not the symbol tables of archive members: +.Pp +.Dl "elfdump -s -N ARSYM /usr/lib/libelf.a" +.Pp +To dump the content of .got section and +the symbol-versioning sections in Solaris +.Nm +format: +.Pp +.Dl "elfdump -S -Gv /bin/ls" +.Sh SEE ALSO +.Xr objdump 1 , +.Xr readelf 1 , +.Xr elf 3 +.Rs +.%A "AT&T Unix Systems Labs" +.%T "System V Application Binary Interface" +.%O http://www.sco.com/developers/gabi/ +.Re +.Sh HISTORY +The +.Nm +utility first appeared in +.Fx 5.0 . +.Sh AUTHORS +.An -nosplit +The +.Nm +utility +was written by +.An Jake Burkholder Aq jake@FreeBSD.org . +Later it was rewritten based on the +libelf library. +This +manual page was written by +.An David O'Brien Aq obrien@FreeBSD.org . +.Pp +.An Kai Wang Aq kaiw@FreeBSD.org +rewrote it using the +.Lb libelf +and implemented additional functionality. +.Sh BUGS +Does not fully implement the +.Tn ELF +gABI. diff --git a/elfdump/elfdump.c b/elfdump/elfdump.c new file mode 100644 index 000000000000..1d62af723eb8 --- /dev/null +++ b/elfdump/elfdump.c @@ -0,0 +1,2821 @@ +/*- + * Copyright (c) 2007-2012 Kai Wang + * Copyright (c) 2003 David O'Brien. All rights reserved. + * 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> +#include <sys/param.h> +#include <sys/queue.h> +#include <sys/stat.h> + +#include <ar.h> +#include <assert.h> +#include <err.h> +#include <fcntl.h> +#include <gelf.h> +#include <getopt.h> +#include <libelftc.h> +#include <inttypes.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#ifdef USE_LIBARCHIVE_AR +#include <archive.h> +#include <archive_entry.h> +#endif + +#include "_elftc.h" + +ELFTC_VCSID("$Id: elfdump.c 2728 2012-12-09 16:54:28Z kaiwang27 $"); + +#if defined(ELFTC_NEED_ELF_NOTE_DEFINITION) +#include "native-elf-format.h" +#if ELFTC_CLASS == ELFCLASS32 +typedef Elf32_Nhdr Elf_Note; +#else +typedef Elf64_Nhdr Elf_Note; +#endif +#endif + +/* elfdump(1) options. */ +#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_SYMVER (1<<10) +#define ED_CHECKSUM (1<<11) +#define ED_ALL ((1<<12)-1) + +/* elfdump(1) run control flags. */ +#define SOLARIS_FMT (1<<0) +#define PRINT_FILENAME (1<<1) +#define PRINT_ARSYM (1<<2) +#define ONLY_ARSYM (1<<3) + +/* Convenient print macro. */ +#define PRT(...) fprintf(ed->out, __VA_ARGS__) + +/* Internal data structure for sections. */ +struct section { + const char *name; /* section name */ + Elf_Scn *scn; /* section scn */ + uint64_t off; /* section offset */ + uint64_t sz; /* section size */ + uint64_t entsize; /* section entsize */ + uint64_t align; /* section alignment */ + uint64_t type; /* section type */ + uint64_t flags; /* section flags */ + uint64_t addr; /* section virtual addr */ + uint32_t link; /* section link ndx */ + uint32_t info; /* section info ndx */ +}; + +struct spec_name { + const char *name; + STAILQ_ENTRY(spec_name) sn_list; +}; + +/* Structure encapsulates the global data for readelf(1). */ +struct elfdump { + FILE *out; /* output redirection. */ + const char *filename; /* current processing file. */ + const char *archive; /* archive name */ + int options; /* command line options. */ + int flags; /* run control flags. */ + Elf *elf; /* underlying ELF descriptor. */ +#ifndef USE_LIBARCHIVE_AR + Elf *ar; /* ar(1) archive descriptor. */ +#endif + GElf_Ehdr ehdr; /* ELF header. */ + int ec; /* ELF class. */ + size_t shnum; /* #sections. */ + struct section *sl; /* list of sections. */ + STAILQ_HEAD(, spec_name) snl; /* list of names specified by -N. */ +}; + +/* Relocation entry. */ +struct rel_entry { + union { + GElf_Rel rel; + GElf_Rela rela; + } u_r; + const char *symn; + uint32_t type; +}; + +#if defined(ELFTC_NEED_BYTEORDER_EXTENSIONS) +static __inline uint32_t +be32dec(const void *pp) +{ + unsigned char const *p = (unsigned char const *)pp; + + return ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]); +} + +static __inline uint32_t +le32dec(const void *pp) +{ + unsigned char const *p = (unsigned char const *)pp; + + return ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]); +} +#endif + +/* http://www.sco.com/developers/gabi/latest/ch5.dynamic.html#tag_encodings */ +static const char * +d_tags(uint64_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 0x6ffffef5: return "DT_GNU_HASH"; + 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(unsigned 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); +} + +static const char *e_types[] = { + "ET_NONE", "ET_REL", "ET_EXEC", "ET_DYN", "ET_CORE" +}; + +static const char *ei_versions[] = { + "EV_NONE", "EV_CURRENT" +}; + +static const char *ei_classes[] = { + "ELFCLASSNONE", "ELFCLASS32", "ELFCLASS64" +}; + +static const char *ei_data[] = { + "ELFDATANONE", "ELFDATA2LSB", "ELFDATA2MSB" +}; + +static 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" +}; + +static const char *p_types[] = { + "PT_NULL", "PT_LOAD", "PT_DYNAMIC", "PT_INTERP", "PT_NOTE", + "PT_SHLIB", "PT_PHDR", "PT_TLS" +}; + +static 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" +}; + +static const char * +sh_name(struct elfdump *ed, int ndx) +{ + static char num[10]; + + switch (ndx) { + case SHN_UNDEF: return "UNDEF"; + case SHN_ABS: return "ABS"; + case SHN_COMMON: return "COMMON"; + default: + if ((uint64_t)ndx < ed->shnum) + return (ed->sl[ndx].name); + else { + snprintf(num, sizeof(num), "%d", ndx); + return (num); + } + } +} + +/* 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 0x6ffffff6: return "SHT_GNU_HASH"; + 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"; + } +} + +/* + * Define known section flags. These flags are defined in the order + * they are to be printed out. + */ +#define DEFINE_SHFLAGS() \ + DEFINE_SHF(WRITE) \ + DEFINE_SHF(ALLOC) \ + DEFINE_SHF(EXECINSTR) \ + DEFINE_SHF(MERGE) \ + DEFINE_SHF(STRINGS) \ + DEFINE_SHF(INFO_LINK) \ + DEFINE_SHF(LINK_ORDER) \ + DEFINE_SHF(OS_NONCONFORMING) \ + DEFINE_SHF(GROUP) \ + DEFINE_SHF(TLS) + +#undef DEFINE_SHF +#define DEFINE_SHF(F) "SHF_" #F "|" +#define ALLSHFLAGS DEFINE_SHFLAGS() + +static const char * +sh_flags(uint64_t shf) +{ + static char flg[sizeof(ALLSHFLAGS)+1]; + + flg[0] = '\0'; + +#undef DEFINE_SHF +#define DEFINE_SHF(N) \ + if (shf & SHF_##N) \ + strcat(flg, "SHF_" #N "|"); \ + + DEFINE_SHFLAGS() + + flg[strlen(flg) - 1] = '\0'; /* Remove the trailing "|". */ + + return (flg); +} + +static const char *st_types[] = { + "STT_NOTYPE", "STT_OBJECT", "STT_FUNC", "STT_SECTION", "STT_FILE", + "STT_COMMON", "STT_TLS" +}; + +static const char *st_types_S[] = { + "NOTY", "OBJT", "FUNC", "SECT", "FILE" +}; + +static const char *st_bindings[] = { + "STB_LOCAL", "STB_GLOBAL", "STB_WEAK" +}; + +static const char *st_bindings_S[] = { + "LOCL", "GLOB", "WEAK" +}; + +static unsigned char st_others[] = { + 'D', 'I', 'H', 'P' +}; + +static const char * +r_type(unsigned int mach, unsigned int type) +{ + switch(mach) { + case EM_NONE: return ""; + case EM_386: + switch(type) { + case 0: return "R_386_NONE"; + case 1: return "R_386_32"; + case 2: return "R_386_PC32"; + case 3: return "R_386_GOT32"; + case 4: return "R_386_PLT32"; + case 5: return "R_386_COPY"; + case 6: return "R_386_GLOB_DAT"; + case 7: return "R_386_JMP_SLOT"; + case 8: return "R_386_RELATIVE"; + case 9: return "R_386_GOTOFF"; + case 10: return "R_386_GOTPC"; + case 14: return "R_386_TLS_TPOFF"; + case 15: return "R_386_TLS_IE"; + case 16: return "R_386_TLS_GOTIE"; + case 17: return "R_386_TLS_LE"; + case 18: return "R_386_TLS_GD"; + case 19: return "R_386_TLS_LDM"; + case 24: return "R_386_TLS_GD_32"; + case 25: return "R_386_TLS_GD_PUSH"; + case 26: return "R_386_TLS_GD_CALL"; + case 27: return "R_386_TLS_GD_POP"; + case 28: return "R_386_TLS_LDM_32"; + case 29: return "R_386_TLS_LDM_PUSH"; + case 30: return "R_386_TLS_LDM_CALL"; + case 31: return "R_386_TLS_LDM_POP"; + case 32: return "R_386_TLS_LDO_32"; + case 33: return "R_386_TLS_IE_32"; + case 34: return "R_386_TLS_LE_32"; + case 35: return "R_386_TLS_DTPMOD32"; + case 36: return "R_386_TLS_DTPOFF32"; + case 37: return "R_386_TLS_TPOFF32"; + default: return ""; + } + case EM_ARM: + switch(type) { + case 0: return "R_ARM_NONE"; + case 1: return "R_ARM_PC24"; + case 2: return "R_ARM_ABS32"; + case 3: return "R_ARM_REL32"; + case 4: return "R_ARM_PC13"; + case 5: return "R_ARM_ABS16"; + case 6: return "R_ARM_ABS12"; + case 7: return "R_ARM_THM_ABS5"; + case 8: return "R_ARM_ABS8"; + case 9: return "R_ARM_SBREL32"; + case 10: return "R_ARM_THM_PC22"; + case 11: return "R_ARM_THM_PC8"; + case 12: return "R_ARM_AMP_VCALL9"; + case 13: return "R_ARM_SWI24"; + case 14: return "R_ARM_THM_SWI8"; + case 15: return "R_ARM_XPC25"; + case 16: return "R_ARM_THM_XPC22"; + case 20: return "R_ARM_COPY"; + case 21: return "R_ARM_GLOB_DAT"; + case 22: return "R_ARM_JUMP_SLOT"; + case 23: return "R_ARM_RELATIVE"; + case 24: return "R_ARM_GOTOFF"; + case 25: return "R_ARM_GOTPC"; + case 26: return "R_ARM_GOT32"; + case 27: return "R_ARM_PLT32"; + case 100: return "R_ARM_GNU_VTENTRY"; + case 101: return "R_ARM_GNU_VTINHERIT"; + case 250: return "R_ARM_RSBREL32"; + case 251: return "R_ARM_THM_RPC22"; + case 252: return "R_ARM_RREL32"; + case 253: return "R_ARM_RABS32"; + case 254: return "R_ARM_RPC24"; + case 255: return "R_ARM_RBASE"; + default: return ""; + } + case EM_IA_64: + switch(type) { + case 0: return "R_IA_64_NONE"; + case 33: return "R_IA_64_IMM14"; + case 34: return "R_IA_64_IMM22"; + case 35: return "R_IA_64_IMM64"; + case 36: return "R_IA_64_DIR32MSB"; + case 37: return "R_IA_64_DIR32LSB"; + case 38: return "R_IA_64_DIR64MSB"; + case 39: return "R_IA_64_DIR64LSB"; + case 42: return "R_IA_64_GPREL22"; + case 43: return "R_IA_64_GPREL64I"; + case 44: return "R_IA_64_GPREL32MSB"; + case 45: return "R_IA_64_GPREL32LSB"; + case 46: return "R_IA_64_GPREL64MSB"; + case 47: return "R_IA_64_GPREL64LSB"; + case 50: return "R_IA_64_LTOFF22"; + case 51: return "R_IA_64_LTOFF64I"; + case 58: return "R_IA_64_PLTOFF22"; + case 59: return "R_IA_64_PLTOFF64I"; + case 62: return "R_IA_64_PLTOFF64MSB"; + case 63: return "R_IA_64_PLTOFF64LSB"; + case 67: return "R_IA_64_FPTR64I"; + case 68: return "R_IA_64_FPTR32MSB"; + case 69: return "R_IA_64_FPTR32LSB"; + case 70: return "R_IA_64_FPTR64MSB"; + case 71: return "R_IA_64_FPTR64LSB"; + case 72: return "R_IA_64_PCREL60B"; + case 73: return "R_IA_64_PCREL21B"; + case 74: return "R_IA_64_PCREL21M"; + case 75: return "R_IA_64_PCREL21F"; + case 76: return "R_IA_64_PCREL32MSB"; + case 77: return "R_IA_64_PCREL32LSB"; + case 78: return "R_IA_64_PCREL64MSB"; + case 79: return "R_IA_64_PCREL64LSB"; + case 82: return "R_IA_64_LTOFF_FPTR22"; + case 83: return "R_IA_64_LTOFF_FPTR64I"; + case 84: return "R_IA_64_LTOFF_FPTR32MSB"; + case 85: return "R_IA_64_LTOFF_FPTR32LSB"; + case 86: return "R_IA_64_LTOFF_FPTR64MSB"; + case 87: return "R_IA_64_LTOFF_FPTR64LSB"; + case 92: return "R_IA_64_SEGREL32MSB"; + case 93: return "R_IA_64_SEGREL32LSB"; + case 94: return "R_IA_64_SEGREL64MSB"; + case 95: return "R_IA_64_SEGREL64LSB"; + case 100: return "R_IA_64_SECREL32MSB"; + case 101: return "R_IA_64_SECREL32LSB"; + case 102: return "R_IA_64_SECREL64MSB"; + case 103: return "R_IA_64_SECREL64LSB"; + case 108: return "R_IA_64_REL32MSB"; + case 109: return "R_IA_64_REL32LSB"; + case 110: return "R_IA_64_REL64MSB"; + case 111: return "R_IA_64_REL64LSB"; + case 116: return "R_IA_64_LTV32MSB"; + case 117: return "R_IA_64_LTV32LSB"; + case 118: return "R_IA_64_LTV64MSB"; + case 119: return "R_IA_64_LTV64LSB"; + case 121: return "R_IA_64_PCREL21BI"; + case 122: return "R_IA_64_PCREL22"; + case 123: return "R_IA_64_PCREL64I"; + case 128: return "R_IA_64_IPLTMSB"; + case 129: return "R_IA_64_IPLTLSB"; + case 133: return "R_IA_64_SUB"; + case 134: return "R_IA_64_LTOFF22X"; + case 135: return "R_IA_64_LDXMOV"; + case 145: return "R_IA_64_TPREL14"; + case 146: return "R_IA_64_TPREL22"; + case 147: return "R_IA_64_TPREL64I"; + case 150: return "R_IA_64_TPREL64MSB"; + case 151: return "R_IA_64_TPREL64LSB"; + case 154: return "R_IA_64_LTOFF_TPREL22"; + case 166: return "R_IA_64_DTPMOD64MSB"; + case 167: return "R_IA_64_DTPMOD64LSB"; + case 170: return "R_IA_64_LTOFF_DTPMOD22"; + case 177: return "R_IA_64_DTPREL14"; + case 178: return "R_IA_64_DTPREL22"; + case 179: return "R_IA_64_DTPREL64I"; + case 180: return "R_IA_64_DTPREL32MSB"; + case 181: return "R_IA_64_DTPREL32LSB"; + case 182: return "R_IA_64_DTPREL64MSB"; + case 183: return "R_IA_64_DTPREL64LSB"; + case 186: return "R_IA_64_LTOFF_DTPREL22"; + default: return ""; + } + case EM_MIPS: + switch(type) { + case 0: return "R_MIPS_NONE"; + case 1: return "R_MIPS_16"; + case 2: return "R_MIPS_32"; + case 3: return "R_MIPS_REL32"; + case 4: return "R_MIPS_26"; + case 5: return "R_MIPS_HI16"; + case 6: return "R_MIPS_LO16"; + case 7: return "R_MIPS_GPREL16"; + case 8: return "R_MIPS_LITERAL"; + case 9: return "R_MIPS_GOT16"; + case 10: return "R_MIPS_PC16"; + case 11: return "R_MIPS_CALL16"; + case 12: return "R_MIPS_GPREL32"; + case 21: return "R_MIPS_GOTHI16"; + case 22: return "R_MIPS_GOTLO16"; + case 30: return "R_MIPS_CALLHI16"; + case 31: return "R_MIPS_CALLLO16"; + default: return ""; + } + case EM_PPC: + switch(type) { + case 0: return "R_PPC_NONE"; + case 1: return "R_PPC_ADDR32"; + case 2: return "R_PPC_ADDR24"; + case 3: return "R_PPC_ADDR16"; + case 4: return "R_PPC_ADDR16_LO"; + case 5: return "R_PPC_ADDR16_HI"; + case 6: return "R_PPC_ADDR16_HA"; + case 7: return "R_PPC_ADDR14"; + case 8: return "R_PPC_ADDR14_BRTAKEN"; + case 9: return "R_PPC_ADDR14_BRNTAKEN"; + case 10: return "R_PPC_REL24"; + case 11: return "R_PPC_REL14"; + case 12: return "R_PPC_REL14_BRTAKEN"; + case 13: return "R_PPC_REL14_BRNTAKEN"; + case 14: return "R_PPC_GOT16"; + case 15: return "R_PPC_GOT16_LO"; + case 16: return "R_PPC_GOT16_HI"; + case 17: return "R_PPC_GOT16_HA"; + case 18: return "R_PPC_PLTREL24"; + case 19: return "R_PPC_COPY"; + case 20: return "R_PPC_GLOB_DAT"; + case 21: return "R_PPC_JMP_SLOT"; + case 22: return "R_PPC_RELATIVE"; + case 23: return "R_PPC_LOCAL24PC"; + case 24: return "R_PPC_UADDR32"; + case 25: return "R_PPC_UADDR16"; + case 26: return "R_PPC_REL32"; + case 27: return "R_PPC_PLT32"; + case 28: return "R_PPC_PLTREL32"; + case 29: return "R_PPC_PLT16_LO"; + case 30: return "R_PPC_PLT16_HI"; + case 31: return "R_PPC_PLT16_HA"; + case 32: return "R_PPC_SDAREL16"; + case 33: return "R_PPC_SECTOFF"; + case 34: return "R_PPC_SECTOFF_LO"; + case 35: return "R_PPC_SECTOFF_HI"; + case 36: return "R_PPC_SECTOFF_HA"; + case 67: return "R_PPC_TLS"; + case 68: return "R_PPC_DTPMOD32"; + case 69: return "R_PPC_TPREL16"; + case 70: return "R_PPC_TPREL16_LO"; + case 71: return "R_PPC_TPREL16_HI"; + case 72: return "R_PPC_TPREL16_HA"; + case 73: return "R_PPC_TPREL32"; + case 74: return "R_PPC_DTPREL16"; + case 75: return "R_PPC_DTPREL16_LO"; + case 76: return "R_PPC_DTPREL16_HI"; + case 77: return "R_PPC_DTPREL16_HA"; + case 78: return "R_PPC_DTPREL32"; + case 79: return "R_PPC_GOT_TLSGD16"; + case 80: return "R_PPC_GOT_TLSGD16_LO"; + case 81: return "R_PPC_GOT_TLSGD16_HI"; + case 82: return "R_PPC_GOT_TLSGD16_HA"; + case 83: return "R_PPC_GOT_TLSLD16"; + case 84: return "R_PPC_GOT_TLSLD16_LO"; + case 85: return "R_PPC_GOT_TLSLD16_HI"; + case 86: return "R_PPC_GOT_TLSLD16_HA"; + case 87: return "R_PPC_GOT_TPREL16"; + case 88: return "R_PPC_GOT_TPREL16_LO"; + case 89: return "R_PPC_GOT_TPREL16_HI"; + case 90: return "R_PPC_GOT_TPREL16_HA"; + case 101: return "R_PPC_EMB_NADDR32"; + case 102: return "R_PPC_EMB_NADDR16"; + case 103: return "R_PPC_EMB_NADDR16_LO"; + case 104: return "R_PPC_EMB_NADDR16_HI"; + case 105: return "R_PPC_EMB_NADDR16_HA"; + case 106: return "R_PPC_EMB_SDAI16"; + case 107: return "R_PPC_EMB_SDA2I16"; + case 108: return "R_PPC_EMB_SDA2REL"; + case 109: return "R_PPC_EMB_SDA21"; + case 110: return "R_PPC_EMB_MRKREF"; + case 111: return "R_PPC_EMB_RELSEC16"; + case 112: return "R_PPC_EMB_RELST_LO"; + case 113: return "R_PPC_EMB_RELST_HI"; + case 114: return "R_PPC_EMB_RELST_HA"; + case 115: return "R_PPC_EMB_BIT_FLD"; + case 116: return "R_PPC_EMB_RELSDA"; + default: return ""; + } + case EM_SPARC: + case EM_SPARCV9: + switch(type) { + case 0: return "R_SPARC_NONE"; + case 1: return "R_SPARC_8"; + case 2: return "R_SPARC_16"; + case 3: return "R_SPARC_32"; + case 4: return "R_SPARC_DISP8"; + case 5: return "R_SPARC_DISP16"; + case 6: return "R_SPARC_DISP32"; + case 7: return "R_SPARC_WDISP30"; + case 8: return "R_SPARC_WDISP22"; + case 9: return "R_SPARC_HI22"; + case 10: return "R_SPARC_22"; + case 11: return "R_SPARC_13"; + case 12: return "R_SPARC_LO10"; + case 13: return "R_SPARC_GOT10"; + case 14: return "R_SPARC_GOT13"; + case 15: return "R_SPARC_GOT22"; + case 16: return "R_SPARC_PC10"; + case 17: return "R_SPARC_PC22"; + case 18: return "R_SPARC_WPLT30"; + case 19: return "R_SPARC_COPY"; + case 20: return "R_SPARC_GLOB_DAT"; + case 21: return "R_SPARC_JMP_SLOT"; + case 22: return "R_SPARC_RELATIVE"; + case 23: return "R_SPARC_UA32"; + case 24: return "R_SPARC_PLT32"; + case 25: return "R_SPARC_HIPLT22"; + case 26: return "R_SPARC_LOPLT10"; + case 27: return "R_SPARC_PCPLT32"; + case 28: return "R_SPARC_PCPLT22"; + case 29: return "R_SPARC_PCPLT10"; + case 30: return "R_SPARC_10"; + case 31: return "R_SPARC_11"; + case 32: return "R_SPARC_64"; + case 33: return "R_SPARC_OLO10"; + case 34: return "R_SPARC_HH22"; + case 35: return "R_SPARC_HM10"; + case 36: return "R_SPARC_LM22"; + case 37: return "R_SPARC_PC_HH22"; + case 38: return "R_SPARC_PC_HM10"; + case 39: return "R_SPARC_PC_LM22"; + case 40: return "R_SPARC_WDISP16"; + case 41: return "R_SPARC_WDISP19"; + case 42: return "R_SPARC_GLOB_JMP"; + case 43: return "R_SPARC_7"; + case 44: return "R_SPARC_5"; + case 45: return "R_SPARC_6"; + case 46: return "R_SPARC_DISP64"; + case 47: return "R_SPARC_PLT64"; + case 48: return "R_SPARC_HIX22"; + case 49: return "R_SPARC_LOX10"; + case 50: return "R_SPARC_H44"; + case 51: return "R_SPARC_M44"; + case 52: return "R_SPARC_L44"; + case 53: return "R_SPARC_REGISTER"; + case 54: return "R_SPARC_UA64"; + case 55: return "R_SPARC_UA16"; + case 56: return "R_SPARC_TLS_GD_HI22"; + case 57: return "R_SPARC_TLS_GD_LO10"; + case 58: return "R_SPARC_TLS_GD_ADD"; + case 59: return "R_SPARC_TLS_GD_CALL"; + case 60: return "R_SPARC_TLS_LDM_HI22"; + case 61: return "R_SPARC_TLS_LDM_LO10"; + case 62: return "R_SPARC_TLS_LDM_ADD"; + case 63: return "R_SPARC_TLS_LDM_CALL"; + case 64: return "R_SPARC_TLS_LDO_HIX22"; + case 65: return "R_SPARC_TLS_LDO_LOX10"; + case 66: return "R_SPARC_TLS_LDO_ADD"; + case 67: return "R_SPARC_TLS_IE_HI22"; + case 68: return "R_SPARC_TLS_IE_LO10"; + case 69: return "R_SPARC_TLS_IE_LD"; + case 70: return "R_SPARC_TLS_IE_LDX"; + case 71: return "R_SPARC_TLS_IE_ADD"; + case 72: return "R_SPARC_TLS_LE_HIX22"; + case 73: return "R_SPARC_TLS_LE_LOX10"; + case 74: return "R_SPARC_TLS_DTPMOD32"; + case 75: return "R_SPARC_TLS_DTPMOD64"; + case 76: return "R_SPARC_TLS_DTPOFF32"; + case 77: return "R_SPARC_TLS_DTPOFF64"; + case 78: return "R_SPARC_TLS_TPOFF32"; + case 79: return "R_SPARC_TLS_TPOFF64"; + default: return ""; + } + case EM_X86_64: + switch(type) { + case 0: return "R_X86_64_NONE"; + case 1: return "R_X86_64_64"; + case 2: return "R_X86_64_PC32"; + case 3: return "R_X86_64_GOT32"; + case 4: return "R_X86_64_PLT32"; + case 5: return "R_X86_64_COPY"; + case 6: return "R_X86_64_GLOB_DAT"; + case 7: return "R_X86_64_JMP_SLOT"; + case 8: return "R_X86_64_RELATIVE"; + case 9: return "R_X86_64_GOTPCREL"; + case 10: return "R_X86_64_32"; + case 11: return "R_X86_64_32S"; + case 12: return "R_X86_64_16"; + case 13: return "R_X86_64_PC16"; + case 14: return "R_X86_64_8"; + case 15: return "R_X86_64_PC8"; + case 16: return "R_X86_64_DTPMOD64"; + case 17: return "R_X86_64_DTPOFF64"; + case 18: return "R_X86_64_TPOFF64"; + case 19: return "R_X86_64_TLSGD"; + case 20: return "R_X86_64_TLSLD"; + case 21: return "R_X86_64_DTPOFF32"; + case 22: return "R_X86_64_GOTTPOFF"; + case 23: return "R_X86_64_TPOFF32"; + default: return ""; + } + default: return ""; + } +} + +static void add_name(struct elfdump *ed, const char *name); +static void elf_print_object(struct elfdump *ed); +static void elf_print_elf(struct elfdump *ed); +static void elf_print_ehdr(struct elfdump *ed); +static void elf_print_phdr(struct elfdump *ed); +static void elf_print_shdr(struct elfdump *ed); +static void elf_print_symtab(struct elfdump *ed, int i); +static void elf_print_symtabs(struct elfdump *ed); +static void elf_print_symver(struct elfdump *ed); +static void elf_print_verdef(struct elfdump *ed, struct section *s); +static void elf_print_verneed(struct elfdump *ed, struct section *s); +static void elf_print_interp(struct elfdump *ed); +static void elf_print_dynamic(struct elfdump *ed); +static void elf_print_rel_entry(struct elfdump *ed, struct section *s, + int j, struct rel_entry *r); +static void elf_print_rela(struct elfdump *ed, struct section *s, + Elf_Data *data); +static void elf_print_rel(struct elfdump *ed, struct section *s, + Elf_Data *data); +static void elf_print_reloc(struct elfdump *ed); +static void elf_print_got(struct elfdump *ed); +static void elf_print_got_section(struct elfdump *ed, struct section *s); +static void elf_print_note(struct elfdump *ed); +static void elf_print_svr4_hash(struct elfdump *ed, struct section *s); +static void elf_print_svr4_hash64(struct elfdump *ed, struct section *s); +static void elf_print_gnu_hash(struct elfdump *ed, struct section *s); +static void elf_print_hash(struct elfdump *ed); +static void elf_print_checksum(struct elfdump *ed); +static void find_gotrel(struct elfdump *ed, struct section *gs, + struct rel_entry *got); +static struct spec_name *find_name(struct elfdump *ed, const char *name); +static const char *get_symbol_name(struct elfdump *ed, int symtab, int i); +static const char *get_string(struct elfdump *ed, int strtab, size_t off); +static void get_versym(struct elfdump *ed, int i, uint16_t **vs, int *nvs); +static void load_sections(struct elfdump *ed); +static void unload_sections(struct elfdump *ed); +static void usage(void); +#ifdef USE_LIBARCHIVE_AR +static int ac_detect_ar(int fd); +static void ac_print_ar(struct elfdump *ed, int fd); +#else +static void elf_print_ar(struct elfdump *ed, int fd); +#endif /* USE_LIBARCHIVE_AR */ + +static struct option elfdump_longopts[] = +{ + { "help", no_argument, NULL, 'H' }, + { "version", no_argument, NULL, 'V' }, + { NULL, 0, NULL, 0 } +}; + +int +main(int ac, char **av) +{ + struct elfdump *ed, ed_storage; + struct spec_name *sn; + int ch, i; + + ed = &ed_storage; + memset(ed, 0, sizeof(*ed)); + STAILQ_INIT(&ed->snl); + ed->out = stdout; + while ((ch = getopt_long(ac, av, "acdeiGHhknN:prsSvVw:", + elfdump_longopts, NULL)) != -1) + switch (ch) { + case 'a': + ed->options = ED_ALL; + break; + case 'c': + ed->options |= ED_SHDR; + break; + case 'd': + ed->options |= ED_DYN; + break; + case 'e': + ed->options |= ED_EHDR; + break; + case 'i': + ed->options |= ED_INTERP; + break; + case 'G': + ed->options |= ED_GOT; + break; + case 'h': + ed->options |= ED_HASH; + break; + case 'k': + ed->options |= ED_CHECKSUM; + break; + case 'n': + ed->options |= ED_NOTE; + break; + case 'N': + add_name(ed, optarg); + break; + case 'p': + ed->options |= ED_PHDR; + break; + case 'r': + ed->options |= ED_REL; + break; + case 's': + ed->options |= ED_SYMTAB; + break; + case 'S': + ed->flags |= SOLARIS_FMT; + break; + case 'v': + ed->options |= ED_SYMVER; + break; + case 'V': + (void) printf("%s (%s)\n", ELFTC_GETPROGNAME(), + elftc_version()); + exit(EXIT_SUCCESS); + break; + case 'w': + if ((ed->out = fopen(optarg, "w")) == NULL) + err(EXIT_FAILURE, "%s", optarg); + break; + case '?': + case 'H': + default: + usage(); + } + + ac -= optind; + av += optind; + + if (ed->options == 0) + ed->options = ED_ALL; + sn = NULL; + if (ed->options & ED_SYMTAB && + (STAILQ_EMPTY(&ed->snl) || (sn = find_name(ed, "ARSYM")) != NULL)) { + ed->flags |= PRINT_ARSYM; + if (sn != NULL) { + STAILQ_REMOVE(&ed->snl, sn, spec_name, sn_list); + if (STAILQ_EMPTY(&ed->snl)) + ed->flags |= ONLY_ARSYM; + } + } + if (ac == 0) + usage(); + if (ac > 1) + ed->flags |= PRINT_FILENAME; + if (elf_version(EV_CURRENT) == EV_NONE) + errx(EXIT_FAILURE, "ELF library initialization failed: %s", + elf_errmsg(-1)); + + for (i = 0; i < ac; i++) + if (av[i] != NULL) { + ed->filename = av[i]; + ed->archive = NULL; + elf_print_object(ed); + } + + exit(EXIT_SUCCESS); +} + +#ifdef USE_LIBARCHIVE_AR + +/* Archive symbol table entry. */ +struct arsym_entry { + char *sym_name; + size_t off; +}; + +/* + * Convenient wrapper for general libarchive error handling. + */ +#define AC(CALL) do { \ + if ((CALL)) { \ + warnx("%s", archive_error_string(a)); \ + return; \ + } \ +} while (0) + +/* + * Detect an ar(1) archive using libarchive(3). + */ +static int +ac_detect_ar(int fd) +{ + struct archive *a; + struct archive_entry *entry; + int r; + + r = -1; + if ((a = archive_read_new()) == NULL) + return (0); + archive_read_support_compression_none(a); + archive_read_support_format_ar(a); + if (archive_read_open_fd(a, fd, 10240) == ARCHIVE_OK) + r = archive_read_next_header(a, &entry); + archive_read_close(a); + archive_read_finish(a); + + return (r == ARCHIVE_OK); +} + +/* + * Dump an ar(1) archive using libarchive(3). + */ +static void +ac_print_ar(struct elfdump *ed, int fd) +{ + struct archive *a; + struct archive_entry *entry; + struct arsym_entry *arsym; + const char *name; + char idx[10], *b; + void *buff; + size_t size; + uint32_t cnt; + int i, r; + + if (lseek(fd, 0, SEEK_SET) == -1) + err(EXIT_FAILURE, "lseek failed"); + if ((a = archive_read_new()) == NULL) + errx(EXIT_FAILURE, "%s", archive_error_string(a)); + archive_read_support_compression_none(a); + archive_read_support_format_ar(a); + AC(archive_read_open_fd(a, fd, 10240)); + for(;;) { + r = archive_read_next_header(a, &entry); + if (r == ARCHIVE_FATAL) + errx(EXIT_FAILURE, "%s", archive_error_string(a)); + if (r == ARCHIVE_EOF) + break; + if (r == ARCHIVE_WARN || r == ARCHIVE_RETRY) + warnx("%s", archive_error_string(a)); + if (r == ARCHIVE_RETRY) + continue; + name = archive_entry_pathname(entry); + size = archive_entry_size(entry); + if (size == 0) + continue; + if ((buff = malloc(size)) == NULL) { + warn("malloc failed"); + continue; + } + if (archive_read_data(a, buff, size) != (ssize_t)size) { + warnx("%s", archive_error_string(a)); + free(buff); + continue; + } + + /* + * Note that when processing arsym via libarchive, there is + * no way to tell which member a certain symbol belongs to, + * since we can not just "lseek" to a member offset and read + * the member header. + */ + if (!strcmp(name, "/") && ed->flags & PRINT_ARSYM) { + b = buff; + cnt = be32dec(b); + if (cnt == 0) { + free(buff); + continue; + } + arsym = calloc(cnt, sizeof(*arsym)); + if (arsym == NULL) + err(EXIT_FAILURE, "calloc failed"); + b += sizeof(uint32_t); + for (i = 0; (size_t)i < cnt; i++) { + arsym[i].off = be32dec(b); + b += sizeof(uint32_t); + } + for (i = 0; (size_t)i < cnt; i++) { + arsym[i].sym_name = b; + b += strlen(b) + 1; + } + if (ed->flags & SOLARIS_FMT) { + PRT("\nSymbol Table: (archive)\n"); + PRT(" index offset symbol\n"); + } else + PRT("\nsymbol table (archive):\n"); + for (i = 0; (size_t)i < cnt; i++) { + if (ed->flags & SOLARIS_FMT) { + snprintf(idx, sizeof(idx), "[%d]", i); + PRT("%10s ", idx); + PRT("0x%8.8jx ", + (uintmax_t)arsym[i].off); + PRT("%s\n", arsym[i].sym_name); + } else { + PRT("\nentry: %d\n", i); + PRT("\toffset: %#jx\n", + (uintmax_t)arsym[i].off); + PRT("\tsymbol: %s\n", + arsym[i].sym_name); + } + } + free(arsym); + free(buff); + /* No need to continue if we only dump ARSYM. */ + if (ed->flags & ONLY_ARSYM) { + AC(archive_read_close(a)); + AC(archive_read_finish(a)); + return; + } + continue; + } + if ((ed->elf = elf_memory(buff, size)) == NULL) { + warnx("elf_memroy() failed: %s", + elf_errmsg(-1)); + free(buff); + continue; + } + /* Skip non-ELF member. */ + if (elf_kind(ed->elf) == ELF_K_ELF) { + printf("\n%s(%s):\n", ed->archive, name); + elf_print_elf(ed); + } + elf_end(ed->elf); + free(buff); + } + AC(archive_read_close(a)); + AC(archive_read_finish(a)); +} + +#else /* USE_LIBARCHIVE_AR */ + +/* + * Dump an ar(1) archive. + */ +static void +elf_print_ar(struct elfdump *ed, int fd) +{ + Elf *e; + Elf_Arhdr *arh; + Elf_Arsym *arsym; + Elf_Cmd cmd; + char idx[10]; + size_t cnt; + int i; + + ed->ar = ed->elf; + + if (ed->flags & PRINT_ARSYM) { + cnt = 0; + if ((arsym = elf_getarsym(ed->ar, &cnt)) == NULL) { + warnx("elf_getarsym failed: %s", elf_errmsg(-1)); + goto print_members; + } + if (cnt == 0) + goto print_members; + if (ed->flags & SOLARIS_FMT) { + PRT("\nSymbol Table: (archive)\n"); + PRT(" index offset member name and symbol\n"); + } else + PRT("\nsymbol table (archive):\n"); + for (i = 0; (size_t)i < cnt - 1; i++) { + if (elf_rand(ed->ar, arsym[i].as_off) != + arsym[i].as_off) { + warnx("elf_rand failed: %s", elf_errmsg(-1)); + break; + } + if ((e = elf_begin(fd, ELF_C_READ, ed->ar)) == NULL) { + warnx("elf_begin failed: %s", elf_errmsg(-1)); + break; + } + if ((arh = elf_getarhdr(e)) == NULL) { + warnx("elf_getarhdr failed: %s", + elf_errmsg(-1)); + break; + } + if (ed->flags & SOLARIS_FMT) { + snprintf(idx, sizeof(idx), "[%d]", i); + PRT("%10s ", idx); + PRT("0x%8.8jx ", + (uintmax_t)arsym[i].as_off); + PRT("(%s):%s\n", arh->ar_name, + arsym[i].as_name); + } else { + PRT("\nentry: %d\n", i); + PRT("\toffset: %#jx\n", + (uintmax_t)arsym[i].as_off); + PRT("\tmember: %s\n", arh->ar_name); + PRT("\tsymbol: %s\n", arsym[i].as_name); + } + elf_end(e); + } + + /* No need to continue if we only dump ARSYM. */ + if (ed->flags & ONLY_ARSYM) + return; + } + +print_members: + + /* Rewind the archive. */ + if (elf_rand(ed->ar, SARMAG) != SARMAG) { + warnx("elf_rand failed: %s", elf_errmsg(-1)); + return; + } + + /* Dump each member of the archive. */ + cmd = ELF_C_READ; + while ((ed->elf = elf_begin(fd, cmd, ed->ar)) != NULL) { + /* Skip non-ELF member. */ + if (elf_kind(ed->elf) == ELF_K_ELF) { + if ((arh = elf_getarhdr(ed->elf)) == NULL) { + warnx("elf_getarhdr failed: %s", + elf_errmsg(-1)); + break; + } + printf("\n%s(%s):\n", ed->archive, arh->ar_name); + elf_print_elf(ed); + } + cmd = elf_next(ed->elf); + elf_end(ed->elf); + } +} + +#endif /* USE_LIBARCHIVE_AR */ + +/* + * Dump an object. (ELF object or ar(1) archive) + */ +static void +elf_print_object(struct elfdump *ed) +{ + int fd; + + if ((fd = open(ed->filename, O_RDONLY)) == -1) { + warn("open %s failed", ed->filename); + return; + } + +#ifdef USE_LIBARCHIVE_AR + if (ac_detect_ar(fd)) { + ed->archive = ed->filename; + ac_print_ar(ed, fd); + return; + } +#endif /* USE_LIBARCHIVE_AR */ + + if ((ed->elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) { + warnx("elf_begin() failed: %s", elf_errmsg(-1)); + return; + } + + switch (elf_kind(ed->elf)) { + case ELF_K_NONE: + warnx("Not an ELF file."); + return; + case ELF_K_ELF: + if (ed->flags & PRINT_FILENAME) + printf("\n%s:\n", ed->filename); + elf_print_elf(ed); + break; + case ELF_K_AR: +#ifndef USE_LIBARCHIVE_AR + ed->archive = ed->filename; + elf_print_ar(ed, fd); +#endif + break; + default: + warnx("Internal: libelf returned unknown elf kind."); + return; + } + + elf_end(ed->elf); +} + +/* + * Dump an ELF object. + */ +static void +elf_print_elf(struct elfdump *ed) +{ + + if (gelf_getehdr(ed->elf, &ed->ehdr) == NULL) { + warnx("gelf_getehdr failed: %s", elf_errmsg(-1)); + return; + } + if ((ed->ec = gelf_getclass(ed->elf)) == ELFCLASSNONE) { + warnx("gelf_getclass failed: %s", elf_errmsg(-1)); + return; + } + + if (ed->options & (ED_SHDR | ED_DYN | ED_REL | ED_GOT | ED_SYMTAB | + ED_SYMVER | ED_NOTE | ED_HASH)) + load_sections(ed); + + if (ed->options & ED_EHDR) + elf_print_ehdr(ed); + if (ed->options & ED_PHDR) + elf_print_phdr(ed); + if (ed->options & ED_INTERP) + elf_print_interp(ed); + if (ed->options & ED_SHDR) + elf_print_shdr(ed); + if (ed->options & ED_DYN) + elf_print_dynamic(ed); + if (ed->options & ED_REL) + elf_print_reloc(ed); + if (ed->options & ED_GOT) + elf_print_got(ed); + if (ed->options & ED_SYMTAB) + elf_print_symtabs(ed); + if (ed->options & ED_SYMVER) + elf_print_symver(ed); + if (ed->options & ED_NOTE) + elf_print_note(ed); + if (ed->options & ED_HASH) + elf_print_hash(ed); + if (ed->options & ED_CHECKSUM) + elf_print_checksum(ed); + + unload_sections(ed); +} + +/* + * Read the section headers from ELF object and store them in the + * internal cache. + */ +static void +load_sections(struct elfdump *ed) +{ + struct section *s; + const char *name; + Elf_Scn *scn; + GElf_Shdr sh; + size_t shstrndx, ndx; + int elferr; + + assert(ed->sl == NULL); + + if (!elf_getshnum(ed->elf, &ed->shnum)) { + warnx("elf_getshnum failed: %s", elf_errmsg(-1)); + return; + } + if (ed->shnum == 0) + return; + if ((ed->sl = calloc(ed->shnum, sizeof(*ed->sl))) == NULL) + err(EXIT_FAILURE, "calloc failed"); + if (!elf_getshstrndx(ed->elf, &shstrndx)) { + warnx("elf_getshstrndx failed: %s", elf_errmsg(-1)); + return; + } + if ((scn = elf_getscn(ed->elf, 0)) == NULL) { + warnx("elf_getscn failed: %s", elf_errmsg(-1)); + return; + } + (void) elf_errno(); + do { + if (gelf_getshdr(scn, &sh) == NULL) { + warnx("gelf_getshdr failed: %s", elf_errmsg(-1)); + (void) elf_errno(); + continue; + } + if ((name = elf_strptr(ed->elf, shstrndx, sh.sh_name)) == NULL) { + (void) elf_errno(); + name = "ERROR"; + } + if ((ndx = elf_ndxscn(scn)) == SHN_UNDEF) + if ((elferr = elf_errno()) != 0) { + warnx("elf_ndxscn failed: %s", + elf_errmsg(elferr)); + continue; + } + if (ndx >= ed->shnum) { + warnx("section index of '%s' out of range", name); + continue; + } + s = &ed->sl[ndx]; + s->name = name; + s->scn = scn; + s->off = sh.sh_offset; + s->sz = sh.sh_size; + s->entsize = sh.sh_entsize; + s->align = sh.sh_addralign; + s->type = sh.sh_type; + s->flags = sh.sh_flags; + s->addr = sh.sh_addr; + s->link = sh.sh_link; + s->info = sh.sh_info; + } while ((scn = elf_nextscn(ed->elf, scn)) != NULL); + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_nextscn failed: %s", elf_errmsg(elferr)); +} + +/* + * Release section related resources. + */ +static void +unload_sections(struct elfdump *ed) +{ + if (ed->sl != NULL) { + free(ed->sl); + ed->sl = NULL; + } +} + +/* + * Add a name to the '-N' name list. + */ +static void +add_name(struct elfdump *ed, const char *name) +{ + struct spec_name *sn; + + if (find_name(ed, name)) + return; + if ((sn = malloc(sizeof(*sn))) == NULL) { + warn("malloc failed"); + return; + } + sn->name = name; + STAILQ_INSERT_TAIL(&ed->snl, sn, sn_list); +} + +/* + * Lookup a name in the '-N' name list. + */ +static struct spec_name * +find_name(struct elfdump *ed, const char *name) +{ + struct spec_name *sn; + + STAILQ_FOREACH(sn, &ed->snl, sn_list) { + if (!strcmp(sn->name, name)) + return (sn); + } + + return (NULL); +} + +/* + * Retrieve the name of a symbol using the section index of the symbol + * table and the index of the symbol within that table. + */ +static const char * +get_symbol_name(struct elfdump *ed, int symtab, int i) +{ + static char sname[64]; + struct section *s; + const char *name; + GElf_Sym sym; + Elf_Data *data; + int elferr; + + s = &ed->sl[symtab]; + if (s->type != SHT_SYMTAB && s->type != SHT_DYNSYM) + return (""); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", elf_errmsg(elferr)); + return (""); + } + if (gelf_getsym(data, i, &sym) != &sym) + return (""); + if (GELF_ST_TYPE(sym.st_info) == STT_SECTION) { + if (sym.st_shndx < ed->shnum) { + snprintf(sname, sizeof(sname), "%s (section)", + ed->sl[sym.st_shndx].name); + return (sname); + } else + return (""); + } + if ((name = elf_strptr(ed->elf, s->link, sym.st_name)) == NULL) + return (""); + + return (name); +} + +/* + * Retrieve a string using string table section index and the string offset. + */ +static const char* +get_string(struct elfdump *ed, int strtab, size_t off) +{ + const char *name; + + if ((name = elf_strptr(ed->elf, strtab, off)) == NULL) + return (""); + + return (name); +} + +/* + * Dump the ELF Executable Header. + */ +static void +elf_print_ehdr(struct elfdump *ed) +{ + + if (!STAILQ_EMPTY(&ed->snl)) + return; + + if (ed->flags & SOLARIS_FMT) { + PRT("\nELF Header\n"); + PRT(" ei_magic: { %#x, %c, %c, %c }\n", + ed->ehdr.e_ident[0], ed->ehdr.e_ident[1], + ed->ehdr.e_ident[2], ed->ehdr.e_ident[3]); + PRT(" ei_class: %-18s", + ei_classes[ed->ehdr.e_ident[EI_CLASS]]); + PRT(" ei_data: %s\n", ei_data[ed->ehdr.e_ident[EI_DATA]]); + PRT(" e_machine: %-18s", e_machines(ed->ehdr.e_machine)); + PRT(" e_version: %s\n", ei_versions[ed->ehdr.e_version]); + PRT(" e_type: %s\n", e_types[ed->ehdr.e_type]); + PRT(" e_flags: %18d\n", ed->ehdr.e_flags); + PRT(" e_entry: %#18jx", (uintmax_t)ed->ehdr.e_entry); + PRT(" e_ehsize: %6d", ed->ehdr.e_ehsize); + PRT(" e_shstrndx:%5d\n", ed->ehdr.e_shstrndx); + PRT(" e_shoff: %#18jx", (uintmax_t)ed->ehdr.e_shoff); + PRT(" e_shentsize: %3d", ed->ehdr.e_shentsize); + PRT(" e_shnum: %5d\n", ed->ehdr.e_shnum); + PRT(" e_phoff: %#18jx", (uintmax_t)ed->ehdr.e_phoff); + PRT(" e_phentsize: %3d", ed->ehdr.e_phentsize); + PRT(" e_phnum: %5d\n", ed->ehdr.e_phnum); + } else { + PRT("\nelf header:\n"); + PRT("\n"); + PRT("\te_ident: %s %s %s\n", + ei_classes[ed->ehdr.e_ident[EI_CLASS]], + ei_data[ed->ehdr.e_ident[EI_DATA]], + ei_abis[ed->ehdr.e_ident[EI_OSABI]]); + PRT("\te_type: %s\n", e_types[ed->ehdr.e_type]); + PRT("\te_machine: %s\n", e_machines(ed->ehdr.e_machine)); + PRT("\te_version: %s\n", ei_versions[ed->ehdr.e_version]); + PRT("\te_entry: %#jx\n", (uintmax_t)ed->ehdr.e_entry); + PRT("\te_phoff: %ju\n", (uintmax_t)ed->ehdr.e_phoff); + PRT("\te_shoff: %ju\n", (uintmax_t) ed->ehdr.e_shoff); + PRT("\te_flags: %u\n", ed->ehdr.e_flags); + PRT("\te_ehsize: %u\n", ed->ehdr.e_ehsize); + PRT("\te_phentsize: %u\n", ed->ehdr.e_phentsize); + PRT("\te_phnum: %u\n", ed->ehdr.e_phnum); + PRT("\te_shentsize: %u\n", ed->ehdr.e_shentsize); + PRT("\te_shnum: %u\n", ed->ehdr.e_shnum); + PRT("\te_shstrndx: %u\n", ed->ehdr.e_shstrndx); + } +} + +/* + * Dump the ELF Program Header Table. + */ +static void +elf_print_phdr(struct elfdump *ed) +{ + GElf_Phdr ph; + size_t phnum; + int header, i; + + if (elf_getphnum(ed->elf, &phnum) == 0) { + warnx("elf_getphnum failed: %s", elf_errmsg(-1)); + return; + } + header = 0; + for (i = 0; (u_int64_t) i < phnum; i++) { + if (gelf_getphdr(ed->elf, i, &ph) != &ph) { + warnx("elf_getphdr failed: %s", elf_errmsg(-1)); + continue; + } + if (!STAILQ_EMPTY(&ed->snl) && + find_name(ed, p_types[ph.p_type & 0x7]) == NULL) + continue; + if (ed->flags & SOLARIS_FMT) { + PRT("\nProgram Header[%d]:\n", i); + PRT(" p_vaddr: %#-14jx", (uintmax_t)ph.p_vaddr); + PRT(" p_flags: [ %s ]\n", p_flags[ph.p_flags]); + PRT(" p_paddr: %#-14jx", (uintmax_t)ph.p_paddr); + PRT(" p_type: [ %s ]\n", p_types[ph.p_type & 0x7]); + PRT(" p_filesz: %#-14jx", + (uintmax_t)ph.p_filesz); + PRT(" p_memsz: %#jx\n", (uintmax_t)ph.p_memsz); + PRT(" p_offset: %#-14jx", + (uintmax_t)ph.p_offset); + PRT(" p_align: %#jx\n", (uintmax_t)ph.p_align); + } else { + if (!header) { + PRT("\nprogram header:\n"); + header = 1; + } + PRT("\n"); + PRT("entry: %d\n", i); + PRT("\tp_type: %s\n", p_types[ph.p_type & 0x7]); + PRT("\tp_offset: %ju\n", (uintmax_t)ph.p_offset); + PRT("\tp_vaddr: %#jx\n", (uintmax_t)ph.p_vaddr); + PRT("\tp_paddr: %#jx\n", (uintmax_t)ph.p_paddr); + PRT("\tp_filesz: %ju\n", (uintmax_t)ph.p_filesz); + PRT("\tp_memsz: %ju\n", (uintmax_t)ph.p_memsz); + PRT("\tp_flags: %s\n", p_flags[ph.p_flags]); + PRT("\tp_align: %ju\n", (uintmax_t)ph.p_align); + } + } +} + +/* + * Dump the ELF Section Header Table. + */ +static void +elf_print_shdr(struct elfdump *ed) +{ + struct section *s; + int i; + + if (!STAILQ_EMPTY(&ed->snl)) + return; + + if ((ed->flags & SOLARIS_FMT) == 0) + PRT("\nsection header:\n"); + for (i = 0; (size_t)i < ed->shnum; i++) { + s = &ed->sl[i]; + if (ed->flags & SOLARIS_FMT) { + if (i == 0) + continue; + PRT("\nSection Header[%d]:", i); + PRT(" sh_name: %s\n", s->name); + PRT(" sh_addr: %#-14jx", (uintmax_t)s->addr); + if (s->flags != 0) + PRT(" sh_flags: [ %s ]\n", sh_flags(s->flags)); + else + PRT(" sh_flags: 0\n"); + PRT(" sh_size: %#-14jx", (uintmax_t)s->sz); + PRT(" sh_type: [ %s ]\n", sh_types(s->type)); + PRT(" sh_offset: %#-14jx", (uintmax_t)s->off); + PRT(" sh_entsize: %#jx\n", (uintmax_t)s->entsize); + PRT(" sh_link: %-14u", s->link); + PRT(" sh_info: %u\n", s->info); + PRT(" sh_addralign: %#jx\n", (uintmax_t)s->align); + } else { + PRT("\n"); + PRT("entry: %ju\n", (uintmax_t)i); + PRT("\tsh_name: %s\n", s->name); + PRT("\tsh_type: %s\n", sh_types(s->type)); + PRT("\tsh_flags: %s\n", sh_flags(s->flags)); + PRT("\tsh_addr: %#jx\n", (uintmax_t)s->addr); + PRT("\tsh_offset: %ju\n", (uintmax_t)s->off); + PRT("\tsh_size: %ju\n", (uintmax_t)s->sz); + PRT("\tsh_link: %u\n", s->link); + PRT("\tsh_info: %u\n", s->info); + PRT("\tsh_addralign: %ju\n", (uintmax_t)s->align); + PRT("\tsh_entsize: %ju\n", (uintmax_t)s->entsize); + } + } +} + +/* + * Retrieve the content of the corresponding SHT_SUNW_versym section for + * a symbol table section. + */ +static void +get_versym(struct elfdump *ed, int i, uint16_t **vs, int *nvs) +{ + struct section *s; + Elf_Data *data; + int j, elferr; + + s = NULL; + for (j = 0; (size_t)j < ed->shnum; j++) { + s = &ed->sl[j]; + if (s->type == SHT_SUNW_versym && s->link == (uint32_t)i) + break; + } + if ((size_t)j >= ed->shnum) { + *vs = NULL; + return; + } + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", elf_errmsg(elferr)); + *vs = NULL; + return; + } + + *vs = data->d_buf; + *nvs = data->d_size / s->entsize; +} + +/* + * Dump the symbol table section. + */ +static void +elf_print_symtab(struct elfdump *ed, int i) +{ + struct section *s; + const char *name; + uint16_t *vs; + char idx[10]; + Elf_Data *data; + GElf_Sym sym; + int len, j, elferr, nvs; + + s = &ed->sl[i]; + if (ed->flags & SOLARIS_FMT) + PRT("\nSymbol Table Section: %s\n", s->name); + else + PRT("\nsymbol table (%s):\n", s->name); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", elf_errmsg(elferr)); + return; + } + vs = NULL; + nvs = 0; + len = data->d_size / s->entsize; + if (ed->flags & SOLARIS_FMT) { + if (ed->ec == ELFCLASS32) + PRT(" index value "); + else + PRT(" index value "); + PRT("size type bind oth ver shndx name\n"); + get_versym(ed, i, &vs, &nvs); + if (vs != NULL && nvs != len) { + warnx("#symbol not equal to #versym"); + vs = NULL; + } + } + for (j = 0; j < len; j++) { + if (gelf_getsym(data, j, &sym) != &sym) { + warnx("gelf_getsym failed: %s", elf_errmsg(-1)); + continue; + } + name = get_string(ed, s->link, sym.st_name); + if (ed->flags & SOLARIS_FMT) { + snprintf(idx, sizeof(idx), "[%d]", j); + if (ed->ec == ELFCLASS32) + PRT("%10s ", idx); + else + PRT("%10s ", idx); + PRT("0x%8.8jx ", (uintmax_t)sym.st_value); + if (ed->ec == ELFCLASS32) + PRT("0x%8.8jx ", (uintmax_t)sym.st_size); + else + PRT("0x%12.12jx ", (uintmax_t)sym.st_size); + PRT("%s ", st_types_S[GELF_ST_TYPE(sym.st_info)]); + PRT("%s ", st_bindings_S[GELF_ST_BIND(sym.st_info)]); + PRT("%c ", st_others[sym.st_other]); + PRT("%3u ", (vs == NULL ? 0 : vs[j])); + PRT("%-11.11s ", sh_name(ed, sym.st_shndx)); + PRT("%s\n", name); + } else { + PRT("\nentry: %d\n", j); + PRT("\tst_name: %s\n", name); + PRT("\tst_value: %#jx\n", (uintmax_t)sym.st_value); + PRT("\tst_size: %ju\n", (uintmax_t)sym.st_size); + PRT("\tst_info: %s %s\n", + st_types[GELF_ST_TYPE(sym.st_info)], + st_bindings[GELF_ST_BIND(sym.st_info)]); + PRT("\tst_shndx: %ju\n", (uintmax_t)sym.st_shndx); + } + } +} + +/* + * Dump the symbol tables. (.dynsym and .symtab) + */ +static void +elf_print_symtabs(struct elfdump *ed) +{ + int i; + + for (i = 0; (size_t)i < ed->shnum; i++) + if ((ed->sl[i].type == SHT_SYMTAB || + ed->sl[i].type == SHT_DYNSYM) && + (STAILQ_EMPTY(&ed->snl) || find_name(ed, ed->sl[i].name))) + elf_print_symtab(ed, i); +} + +/* + * Dump the content of .dynamic section. + */ +static void +elf_print_dynamic(struct elfdump *ed) +{ + struct section *s; + const char *name; + char idx[10]; + Elf_Data *data; + GElf_Dyn dyn; + int elferr, i, len; + + s = NULL; + for (i = 0; (size_t)i < ed->shnum; i++) { + s = &ed->sl[i]; + if (s->type == SHT_DYNAMIC && + (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name))) + break; + } + if ((size_t)i >= ed->shnum) + return; + + if (ed->flags & SOLARIS_FMT) { + PRT("Dynamic Section: %s\n", s->name); + PRT(" index tag value\n"); + } else + PRT("\ndynamic:\n"); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", elf_errmsg(elferr)); + return; + } + len = data->d_size / s->entsize; + for (i = 0; i < len; i++) { + if (gelf_getdyn(data, i, &dyn) != &dyn) { + warnx("gelf_getdyn failed: %s", elf_errmsg(-1)); + continue; + } + + if (ed->flags & SOLARIS_FMT) { + snprintf(idx, sizeof(idx), "[%d]", i); + PRT("%10s %-16s ", idx, d_tags(dyn.d_tag)); + } else { + PRT("\n"); + PRT("entry: %d\n", i); + PRT("\td_tag: %s\n", d_tags(dyn.d_tag)); + } + switch(dyn.d_tag) { + case DT_NEEDED: + case DT_SONAME: + case DT_RPATH: + if ((name = elf_strptr(ed->elf, s->link, + dyn.d_un.d_val)) == NULL) + name = ""; + if (ed->flags & SOLARIS_FMT) + PRT("%#-16jx %s\n", (uintmax_t)dyn.d_un.d_val, + name); + else + PRT("\td_val: %s\n", name); + break; + case DT_PLTRELSZ: + case DT_RELA: + case DT_RELASZ: + case DT_RELAENT: + case DT_RELACOUNT: + case DT_STRSZ: + case DT_SYMENT: + case DT_RELSZ: + case DT_RELENT: + case DT_PLTREL: + case DT_VERDEF: + case DT_VERDEFNUM: + case DT_VERNEED: + case DT_VERNEEDNUM: + case DT_VERSYM: + if (ed->flags & SOLARIS_FMT) + PRT("%#jx\n", (uintmax_t)dyn.d_un.d_val); + else + PRT("\td_val: %ju\n", + (uintmax_t)dyn.d_un.d_val); + break; + case DT_PLTGOT: + case DT_HASH: + case DT_GNU_HASH: + case DT_STRTAB: + case DT_SYMTAB: + case DT_INIT: + case DT_FINI: + case DT_REL: + case DT_JMPREL: + case DT_DEBUG: + if (ed->flags & SOLARIS_FMT) + PRT("%#jx\n", (uintmax_t)dyn.d_un.d_ptr); + else + PRT("\td_ptr: %#jx\n", + (uintmax_t)dyn.d_un.d_ptr); + break; + case DT_NULL: + case DT_SYMBOLIC: + case DT_TEXTREL: + default: + if (ed->flags & SOLARIS_FMT) + PRT("\n"); + break; + } + } +} + +/* + * Dump a .rel/.rela section entry. + */ +static void +elf_print_rel_entry(struct elfdump *ed, struct section *s, int j, + struct rel_entry *r) +{ + + if (ed->flags & SOLARIS_FMT) { + PRT(" %-23s ", r_type(ed->ehdr.e_machine, + GELF_R_TYPE(r->u_r.rel.r_info))); + PRT("%#12jx ", (uintmax_t)r->u_r.rel.r_offset); + if (r->type == SHT_RELA) + PRT("%10jd ", (intmax_t)r->u_r.rela.r_addend); + else + PRT(" "); + PRT("%-14s ", s->name); + PRT("%s\n", r->symn); + } else { + PRT("\n"); + PRT("entry: %d\n", j); + PRT("\tr_offset: %#jx\n", (uintmax_t)r->u_r.rel.r_offset); + if (ed->ec == ELFCLASS32) + PRT("\tr_info: %#jx\n", (uintmax_t) + ELF32_R_INFO(ELF64_R_SYM(r->u_r.rel.r_info), + ELF64_R_TYPE(r->u_r.rel.r_info))); + else + PRT("\tr_info: %#jx\n", (uintmax_t)r->u_r.rel.r_info); + if (r->type == SHT_RELA) + PRT("\tr_addend: %jd\n", + (intmax_t)r->u_r.rela.r_addend); + } +} + +/* + * Dump a relocation section of type SHT_RELA. + */ +static void +elf_print_rela(struct elfdump *ed, struct section *s, Elf_Data *data) +{ + struct rel_entry r; + int j, len; + + if (ed->flags & SOLARIS_FMT) { + PRT("\nRelocation Section: %s\n", s->name); + PRT(" type offset " + "addend section with respect to\n"); + } else + PRT("\nrelocation with addend (%s):\n", s->name); + r.type = SHT_RELA; + len = data->d_size / s->entsize; + for (j = 0; j < len; j++) { + if (gelf_getrela(data, j, &r.u_r.rela) != &r.u_r.rela) { + warnx("gelf_getrela failed: %s", + elf_errmsg(-1)); + continue; + } + r.symn = get_symbol_name(ed, s->link, + GELF_R_SYM(r.u_r.rela.r_info)); + elf_print_rel_entry(ed, s, j, &r); + } +} + +/* + * Dump a relocation section of type SHT_REL. + */ +static void +elf_print_rel(struct elfdump *ed, struct section *s, Elf_Data *data) +{ + struct rel_entry r; + int j, len; + + if (ed->flags & SOLARIS_FMT) { + PRT("\nRelocation Section: %s\n", s->name); + PRT(" type offset " + "section with respect to\n"); + } else + PRT("\nrelocation (%s):\n", s->name); + r.type = SHT_REL; + len = data->d_size / s->entsize; + for (j = 0; j < len; j++) { + if (gelf_getrel(data, j, &r.u_r.rel) != &r.u_r.rel) { + warnx("gelf_getrel failed: %s", elf_errmsg(-1)); + continue; + } + r.symn = get_symbol_name(ed, s->link, + GELF_R_SYM(r.u_r.rel.r_info)); + elf_print_rel_entry(ed, s, j, &r); + } +} + +/* + * Dump relocation sections. + */ +static void +elf_print_reloc(struct elfdump *ed) +{ + struct section *s; + Elf_Data *data; + int i, elferr; + + for (i = 0; (size_t)i < ed->shnum; i++) { + s = &ed->sl[i]; + if ((s->type == SHT_REL || s->type == SHT_RELA) && + (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name))) { + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", + elf_errmsg(elferr)); + continue; + } + if (s->type == SHT_REL) + elf_print_rel(ed, s, data); + else + elf_print_rela(ed, s, data); + } + } +} + +/* + * Dump the content of PT_INTERP segment. + */ +static void +elf_print_interp(struct elfdump *ed) +{ + const char *s; + GElf_Phdr phdr; + size_t phnum; + int i; + + if (!STAILQ_EMPTY(&ed->snl) && find_name(ed, "PT_INTERP") == NULL) + return; + + if ((s = elf_rawfile(ed->elf, NULL)) == NULL) { + warnx("elf_rawfile failed: %s", elf_errmsg(-1)); + return; + } + if (!elf_getphnum(ed->elf, &phnum)) { + warnx("elf_getphnum failed: %s", elf_errmsg(-1)); + return; + } + for (i = 0; (size_t)i < phnum; i++) { + if (gelf_getphdr(ed->elf, i, &phdr) != &phdr) { + warnx("elf_getphdr failed: %s", elf_errmsg(-1)); + continue; + } + if (phdr.p_type == PT_INTERP) { + PRT("\ninterp:\n"); + PRT("\t%s\n", s + phdr.p_offset); + } + } +} + +/* + * Search the relocation sections for entries refering to the .got section. + */ +static void +find_gotrel(struct elfdump *ed, struct section *gs, struct rel_entry *got) +{ + struct section *s; + struct rel_entry r; + Elf_Data *data; + int elferr, i, j, k, len; + + for(i = 0; (size_t)i < ed->shnum; i++) { + s = &ed->sl[i]; + if (s->type != SHT_REL && s->type != SHT_RELA) + continue; + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", + elf_errmsg(elferr)); + return; + } + memset(&r, 0, sizeof(struct rel_entry)); + r.type = s->type; + len = data->d_size / s->entsize; + for (j = 0; j < len; j++) { + if (s->type == SHT_REL) { + if (gelf_getrel(data, j, &r.u_r.rel) != + &r.u_r.rel) { + warnx("gelf_getrel failed: %s", + elf_errmsg(-1)); + continue; + } + } else { + if (gelf_getrela(data, j, &r.u_r.rela) != + &r.u_r.rela) { + warnx("gelf_getrel failed: %s", + elf_errmsg(-1)); + continue; + } + } + if (r.u_r.rel.r_offset >= gs->addr && + r.u_r.rel.r_offset < gs->addr + gs->sz) { + r.symn = get_symbol_name(ed, s->link, + GELF_R_SYM(r.u_r.rel.r_info)); + k = (r.u_r.rel.r_offset - gs->addr) / + gs->entsize; + memcpy(&got[k], &r, sizeof(struct rel_entry)); + } + } + } +} + +static void +elf_print_got_section(struct elfdump *ed, struct section *s) +{ + struct rel_entry *got; + Elf_Data *data, dst; + int elferr, i, len; + + if (s->entsize == 0) { + /* XXX IA64 GOT section generated by gcc has entry size 0. */ + if (s->align != 0) + s->entsize = s->align; + else + return; + } + + if (ed->flags & SOLARIS_FMT) + PRT("\nGlobal Offset Table Section: %s (%jd entries)\n", + s->name, s->sz / s->entsize); + else + PRT("\nglobal offset table: %s\n", s->name); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", elf_errmsg(elferr)); + return; + } + + /* + * GOT section has section type SHT_PROGBITS, thus libelf treats it as + * byte stream and will not perfrom any translation on it. As a result, + * an exlicit call to gelf_xlatetom is needed here. Depends on arch, + * GOT section should be translated to either WORD or XWORD. + */ + if (ed->ec == ELFCLASS32) + data->d_type = ELF_T_WORD; + else + data->d_type = ELF_T_XWORD; + memcpy(&dst, data, sizeof(Elf_Data)); + if (gelf_xlatetom(ed->elf, &dst, data, ed->ehdr.e_ident[EI_DATA]) != + &dst) { + warnx("gelf_xlatetom failed: %s", elf_errmsg(-1)); + return; + } + len = dst.d_size / s->entsize; + if (ed->flags & SOLARIS_FMT) { + /* + * In verbose/Solaris mode, we search the relocation sections + * and try to find the corresponding reloc entry for each GOT + * section entry. + */ + if ((got = calloc(len, sizeof(struct rel_entry))) == NULL) + err(EXIT_FAILURE, "calloc failed"); + find_gotrel(ed, s, got); + if (ed->ec == ELFCLASS32) { + PRT(" ndx addr value reloc "); + PRT("addend symbol\n"); + } else { + PRT(" ndx addr value "); + PRT("reloc addend symbol\n"); + } + for(i = 0; i < len; i++) { + PRT("[%5.5d] ", i); + if (ed->ec == ELFCLASS32) { + PRT("%-8.8jx ", s->addr + i * s->entsize); + PRT("%-8.8x ", *((uint32_t *)dst.d_buf + i)); + } else { + PRT("%-16.16jx ", s->addr + i * s->entsize); + PRT("%-16.16jx ", *((uint64_t *)dst.d_buf + i)); + } + PRT("%-18s ", r_type(ed->ehdr.e_machine, + GELF_R_TYPE(got[i].u_r.rel.r_info))); + if (ed->ec == ELFCLASS32) + PRT("%-8.8jd ", + (intmax_t)got[i].u_r.rela.r_addend); + else + PRT("%-12.12jd ", + (intmax_t)got[i].u_r.rela.r_addend); + if (got[i].symn == NULL) + got[i].symn = ""; + PRT("%s\n", got[i].symn); + } + free(got); + } else { + for(i = 0; i < len; i++) { + PRT("\nentry: %d\n", i); + if (ed->ec == ELFCLASS32) + PRT("\t%#x\n", *((uint32_t *)dst.d_buf + i)); + else + PRT("\t%#jx\n", *((uint64_t *)dst.d_buf + i)); + } + } +} + +/* + * Dump the content of Global Offset Table section. + */ +static void +elf_print_got(struct elfdump *ed) +{ + struct section *s; + int i; + + if (!STAILQ_EMPTY(&ed->snl)) + return; + + s = NULL; + for (i = 0; (size_t)i < ed->shnum; i++) { + s = &ed->sl[i]; + if (s->name && !strncmp(s->name, ".got", 4) && + (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name))) + elf_print_got_section(ed, s); + } +} + +/* + * Dump the content of .note.ABI-tag section. + */ +static void +elf_print_note(struct elfdump *ed) +{ + struct section *s; + Elf_Data *data; + Elf_Note *en; + uint32_t namesz; + uint32_t descsz; + uint32_t desc; + size_t count; + int elferr, i; + char *src, idx[10]; + + s = NULL; + for (i = 0; (size_t)i < ed->shnum; i++) { + s = &ed->sl[i]; + if (s->type == SHT_NOTE && s->name && + !strcmp(s->name, ".note.ABI-tag") && + (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name))) + break; + } + if ((size_t)i >= ed->shnum) + return; + if (ed->flags & SOLARIS_FMT) + PRT("\nNote Section: %s\n", s->name); + else + PRT("\nnote (%s):\n", s->name); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", elf_errmsg(elferr)); + return; + } + src = data->d_buf; + count = data->d_size; + while (count > sizeof(Elf_Note)) { + en = (Elf_Note *) (uintptr_t) src; + namesz = en->n_namesz; + descsz = en->n_descsz; + src += sizeof(Elf_Note); + count -= sizeof(Elf_Note); + if (ed->flags & SOLARIS_FMT) { + PRT("\n type %#x\n", en->n_type); + PRT(" namesz %#x:\n", en->n_namesz); + PRT("%s\n", src); + } else + PRT("\t%s ", src); + src += roundup2(namesz, 4); + count -= roundup2(namesz, 4); + + /* + * Note that we dump the whole desc part if we're in + * "Solaris mode", while in the normal mode, we only look + * at the first 4 bytes (a 32bit word) of the desc, i.e, + * we assume that it's always a FreeBSD version number. + */ + if (ed->flags & SOLARIS_FMT) { + PRT(" descsz %#x:", en->n_descsz); + for (i = 0; (uint32_t)i < descsz; i++) { + if ((i & 0xF) == 0) { + snprintf(idx, sizeof(idx), "desc[%d]", + i); + PRT("\n %-9s", idx); + } else if ((i & 0x3) == 0) + PRT(" "); + PRT(" %2.2x", src[i]); + } + PRT("\n"); + } else { + if (ed->ehdr.e_ident[EI_DATA] == ELFDATA2MSB) + desc = be32dec(src); + else + desc = le32dec(src); + PRT("%d\n", desc); + } + src += roundup2(descsz, 4); + count -= roundup2(descsz, 4); + } +} + +/* + * Dump a hash table. + */ +static void +elf_print_svr4_hash(struct elfdump *ed, struct section *s) +{ + Elf_Data *data; + uint32_t *buf; + uint32_t *bucket, *chain; + uint32_t nbucket, nchain; + uint32_t *bl, *c, maxl, total; + int i, j, first, elferr; + char idx[10]; + + if (ed->flags & SOLARIS_FMT) + PRT("\nHash Section: %s\n", s->name); + else + PRT("\nhash table (%s):\n", s->name); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", + elf_errmsg(elferr)); + return; + } + if (data->d_size < 2 * sizeof(uint32_t)) { + warnx(".hash section too small"); + return; + } + buf = data->d_buf; + nbucket = buf[0]; + nchain = buf[1]; + if (nbucket <= 0 || nchain <= 0) { + warnx("Malformed .hash section"); + return; + } + if (data->d_size != (nbucket + nchain + 2) * sizeof(uint32_t)) { + warnx("Malformed .hash section"); + return; + } + bucket = &buf[2]; + chain = &buf[2 + nbucket]; + + if (ed->flags & SOLARIS_FMT) { + maxl = 0; + if ((bl = calloc(nbucket, sizeof(*bl))) == NULL) + err(EXIT_FAILURE, "calloc failed"); + for (i = 0; (uint32_t)i < nbucket; i++) + for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; + j = chain[j]) + if (++bl[i] > maxl) + maxl = bl[i]; + if ((c = calloc(maxl + 1, sizeof(*c))) == NULL) + err(EXIT_FAILURE, "calloc failed"); + for (i = 0; (uint32_t)i < nbucket; i++) + c[bl[i]]++; + PRT(" bucket symndx name\n"); + for (i = 0; (uint32_t)i < nbucket; i++) { + first = 1; + for (j = bucket[i]; j > 0 && (uint32_t)j < nchain; + j = chain[j]) { + if (first) { + PRT("%10d ", i); + first = 0; + } else + PRT(" "); + snprintf(idx, sizeof(idx), "[%d]", j); + PRT("%-10s ", idx); + PRT("%s\n", get_symbol_name(ed, s->link, j)); + } + } + PRT("\n"); + total = 0; + for (i = 0; (uint32_t)i <= maxl; i++) { + total += c[i] * i; + PRT("%10u buckets contain %8d symbols\n", c[i], i); + } + PRT("%10u buckets %8u symbols (globals)\n", nbucket, + total); + } else { + PRT("\nnbucket: %u\n", nbucket); + PRT("nchain: %u\n\n", nchain); + for (i = 0; (uint32_t)i < nbucket; i++) + PRT("bucket[%d]:\n\t%u\n\n", i, bucket[i]); + for (i = 0; (uint32_t)i < nchain; i++) + PRT("chain[%d]:\n\t%u\n\n", i, chain[i]); + } +} + +/* + * Dump a 64bit hash table. + */ +static void +elf_print_svr4_hash64(struct elfdump *ed, struct section *s) +{ + Elf_Data *data, dst; + uint64_t *buf; + uint64_t *bucket, *chain; + uint64_t nbucket, nchain; + uint64_t *bl, *c, maxl, total; + int i, j, elferr, first; + char idx[10]; + + if (ed->flags & SOLARIS_FMT) + PRT("\nHash Section: %s\n", s->name); + else + PRT("\nhash table (%s):\n", s->name); + + /* + * ALPHA uses 64-bit hash entries. Since libelf assumes that + * .hash section contains only 32-bit entry, an explicit + * gelf_xlatetom is needed here. + */ + (void) elf_errno(); + if ((data = elf_rawdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_rawdata failed: %s", + elf_errmsg(elferr)); + return; + } + data->d_type = ELF_T_XWORD; + memcpy(&dst, data, sizeof(Elf_Data)); + if (gelf_xlatetom(ed->elf, &dst, data, + ed->ehdr.e_ident[EI_DATA]) != &dst) { + warnx("gelf_xlatetom failed: %s", elf_errmsg(-1)); + return; + } + if (dst.d_size < 2 * sizeof(uint64_t)) { + warnx(".hash section too small"); + return; + } + buf = dst.d_buf; + nbucket = buf[0]; + nchain = buf[1]; + if (nbucket <= 0 || nchain <= 0) { + warnx("Malformed .hash section"); + return; + } + if (dst.d_size != (nbucket + nchain + 2) * sizeof(uint64_t)) { + warnx("Malformed .hash section"); + return; + } + bucket = &buf[2]; + chain = &buf[2 + nbucket]; + + if (ed->flags & SOLARIS_FMT) { + maxl = 0; + if ((bl = calloc(nbucket, sizeof(*bl))) == NULL) + err(EXIT_FAILURE, "calloc failed"); + for (i = 0; (uint64_t)i < nbucket; i++) + for (j = bucket[i]; j > 0 && (uint64_t)j < nchain; + j = chain[j]) + if (++bl[i] > maxl) + maxl = bl[i]; + if ((c = calloc(maxl + 1, sizeof(*c))) == NULL) + err(EXIT_FAILURE, "calloc failed"); + for (i = 0; (uint64_t)i < nbucket; i++) + c[bl[i]]++; + PRT(" bucket symndx name\n"); + for (i = 0; (uint64_t)i < nbucket; i++) { + first = 1; + for (j = bucket[i]; j > 0 && (uint64_t)j < nchain; + j = chain[j]) { + if (first) { + PRT("%10d ", i); + first = 0; + } else + PRT(" "); + snprintf(idx, sizeof(idx), "[%d]", j); + PRT("%-10s ", idx); + PRT("%s\n", get_symbol_name(ed, s->link, j)); + } + } + PRT("\n"); + total = 0; + for (i = 0; (uint64_t)i <= maxl; i++) { + total += c[i] * i; + PRT("%10ju buckets contain %8d symbols\n", + (uintmax_t)c[i], i); + } + PRT("%10ju buckets %8ju symbols (globals)\n", + (uintmax_t)nbucket, (uintmax_t)total); + } else { + PRT("\nnbucket: %ju\n", (uintmax_t)nbucket); + PRT("nchain: %ju\n\n", (uintmax_t)nchain); + for (i = 0; (uint64_t)i < nbucket; i++) + PRT("bucket[%d]:\n\t%ju\n\n", i, (uintmax_t)bucket[i]); + for (i = 0; (uint64_t)i < nchain; i++) + PRT("chain[%d]:\n\t%ju\n\n", i, (uintmax_t)chain[i]); + } + +} + +/* + * Dump a GNU hash table. + */ +static void +elf_print_gnu_hash(struct elfdump *ed, struct section *s) +{ + struct section *ds; + Elf_Data *data; + uint32_t *buf; + uint32_t *bucket, *chain; + uint32_t nbucket, nchain, symndx, maskwords, shift2; + uint32_t *bl, *c, maxl, total; + int i, j, first, elferr, dynsymcount; + char idx[10]; + + if (ed->flags & SOLARIS_FMT) + PRT("\nGNU Hash Section: %s\n", s->name); + else + PRT("\ngnu hash table (%s):\n", s->name); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", + elf_errmsg(elferr)); + return; + } + if (data->d_size < 4 * sizeof(uint32_t)) { + warnx(".gnu.hash section too small"); + return; + } + buf = data->d_buf; + nbucket = buf[0]; + symndx = buf[1]; + maskwords = buf[2]; + shift2 = buf[3]; + buf += 4; + ds = &ed->sl[s->link]; + dynsymcount = ds->sz / ds->entsize; + nchain = dynsymcount - symndx; + if (data->d_size != 4 * sizeof(uint32_t) + maskwords * + (ed->ec == ELFCLASS32 ? sizeof(uint32_t) : sizeof(uint64_t)) + + (nbucket + nchain) * sizeof(uint32_t)) { + warnx("Malformed .gnu.hash section"); + return; + } + bucket = buf + (ed->ec == ELFCLASS32 ? maskwords : maskwords * 2); + chain = bucket + nbucket; + + if (ed->flags & SOLARIS_FMT) { + maxl = 0; + if ((bl = calloc(nbucket, sizeof(*bl))) == NULL) + err(EXIT_FAILURE, "calloc failed"); + for (i = 0; (uint32_t)i < nbucket; i++) + for (j = bucket[i]; + j > 0 && (uint32_t)j - symndx < nchain; + j++) { + if (++bl[i] > maxl) + maxl = bl[i]; + if (chain[j - symndx] & 1) + break; + } + if ((c = calloc(maxl + 1, sizeof(*c))) == NULL) + err(EXIT_FAILURE, "calloc failed"); + for (i = 0; (uint32_t)i < nbucket; i++) + c[bl[i]]++; + PRT(" bucket symndx name\n"); + for (i = 0; (uint32_t)i < nbucket; i++) { + first = 1; + for (j = bucket[i]; + j > 0 && (uint32_t)j - symndx < nchain; + j++) { + if (first) { + PRT("%10d ", i); + first = 0; + } else + PRT(" "); + snprintf(idx, sizeof(idx), "[%d]", j ); + PRT("%-10s ", idx); + PRT("%s\n", get_symbol_name(ed, s->link, j)); + if (chain[j - symndx] & 1) + break; + } + } + PRT("\n"); + total = 0; + for (i = 0; (uint32_t)i <= maxl; i++) { + total += c[i] * i; + PRT("%10u buckets contain %8d symbols\n", c[i], i); + } + PRT("%10u buckets %8u symbols (globals)\n", nbucket, + total); + } else { + PRT("\nnbucket: %u\n", nbucket); + PRT("symndx: %u\n", symndx); + PRT("maskwords: %u\n", maskwords); + PRT("shift2: %u\n", shift2); + PRT("nchain: %u\n\n", nchain); + for (i = 0; (uint32_t)i < nbucket; i++) + PRT("bucket[%d]:\n\t%u\n\n", i, bucket[i]); + for (i = 0; (uint32_t)i < nchain; i++) + PRT("chain[%d]:\n\t%u\n\n", i, chain[i]); + } +} + +/* + * Dump hash tables. + */ +static void +elf_print_hash(struct elfdump *ed) +{ + struct section *s; + int i; + + for (i = 0; (size_t)i < ed->shnum; i++) { + s = &ed->sl[i]; + if ((s->type == SHT_HASH || s->type == SHT_GNU_HASH) && + (STAILQ_EMPTY(&ed->snl) || find_name(ed, s->name))) { + if (s->type == SHT_GNU_HASH) + elf_print_gnu_hash(ed, s); + else if (ed->ehdr.e_machine == EM_ALPHA && + s->entsize == 8) + elf_print_svr4_hash64(ed, s); + else + elf_print_svr4_hash(ed, s); + } + } +} + +/* + * Dump the content of a Version Definition(SHT_SUNW_Verdef) Section. + */ +static void +elf_print_verdef(struct elfdump *ed, struct section *s) +{ + Elf_Data *data; + Elf32_Verdef *vd; + Elf32_Verdaux *vda; + const char *str; + char idx[10]; + uint8_t *buf, *end, *buf2; + int i, j, elferr, count; + + if (ed->flags & SOLARIS_FMT) + PRT("Version Definition Section: %s\n", s->name); + else + PRT("\nversion definition section (%s):\n", s->name); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", + elf_errmsg(elferr)); + return; + } + buf = data->d_buf; + end = buf + data->d_size; + i = 0; + if (ed->flags & SOLARIS_FMT) + PRT(" index version dependency\n"); + while (buf + sizeof(Elf32_Verdef) <= end) { + vd = (Elf32_Verdef *) (uintptr_t) buf; + if (ed->flags & SOLARIS_FMT) { + snprintf(idx, sizeof(idx), "[%d]", vd->vd_ndx); + PRT("%10s ", idx); + } else { + PRT("\nentry: %d\n", i++); + PRT("\tvd_version: %u\n", vd->vd_version); + PRT("\tvd_flags: %u\n", vd->vd_flags); + PRT("\tvd_ndx: %u\n", vd->vd_ndx); + PRT("\tvd_cnt: %u\n", vd->vd_cnt); + PRT("\tvd_hash: %u\n", vd->vd_hash); + PRT("\tvd_aux: %u\n", vd->vd_aux); + PRT("\tvd_next: %u\n\n", vd->vd_next); + } + buf2 = buf + vd->vd_aux; + j = 0; + count = 0; + while (buf2 + sizeof(Elf32_Verdaux) <= end && j < vd->vd_cnt) { + vda = (Elf32_Verdaux *) (uintptr_t) buf2; + str = get_string(ed, s->link, vda->vda_name); + if (ed->flags & SOLARIS_FMT) { + if (count == 0) + PRT("%-26.26s", str); + else if (count == 1) + PRT(" %-20.20s", str); + else { + PRT("\n%40.40s", ""); + PRT("%s", str); + } + } else { + PRT("\t\tvda: %d\n", j++); + PRT("\t\t\tvda_name: %s\n", str); + PRT("\t\t\tvda_next: %u\n", vda->vda_next); + } + if (vda->vda_next == 0) { + if (ed->flags & SOLARIS_FMT) { + if (vd->vd_flags & VER_FLG_BASE) { + if (count == 0) + PRT("%-20.20s", ""); + PRT("%s", "[ BASE ]"); + } + PRT("\n"); + } + break; + } + if (ed->flags & SOLARIS_FMT) + count++; + buf2 += vda->vda_next; + } + if (vd->vd_next == 0) + break; + buf += vd->vd_next; + } +} + +/* + * Dump the content of a Version Needed(SHT_SUNW_Verneed) Section. + */ +static void +elf_print_verneed(struct elfdump *ed, struct section *s) +{ + Elf_Data *data; + Elf32_Verneed *vn; + Elf32_Vernaux *vna; + uint8_t *buf, *end, *buf2; + int i, j, elferr, first; + + if (ed->flags & SOLARIS_FMT) + PRT("\nVersion Needed Section: %s\n", s->name); + else + PRT("\nversion need section (%s):\n", s->name); + (void) elf_errno(); + if ((data = elf_getdata(s->scn, NULL)) == NULL) { + elferr = elf_errno(); + if (elferr != 0) + warnx("elf_getdata failed: %s", + elf_errmsg(elferr)); + return; + } + buf = data->d_buf; + end = buf + data->d_size; + if (ed->flags & SOLARIS_FMT) + PRT(" file version\n"); + i = 0; + while (buf + sizeof(Elf32_Verneed) <= end) { + vn = (Elf32_Verneed *) (uintptr_t) buf; + if (ed->flags & SOLARIS_FMT) + PRT(" %-26.26s ", + get_string(ed, s->link, vn->vn_file)); + else { + PRT("\nentry: %d\n", i++); + PRT("\tvn_version: %u\n", vn->vn_version); + PRT("\tvn_cnt: %u\n", vn->vn_cnt); + PRT("\tvn_file: %s\n", + get_string(ed, s->link, vn->vn_file)); + PRT("\tvn_aux: %u\n", vn->vn_aux); + PRT("\tvn_next: %u\n\n", vn->vn_next); + } + buf2 = buf + vn->vn_aux; + j = 0; + first = 1; + while (buf2 + sizeof(Elf32_Vernaux) <= end && j < vn->vn_cnt) { + vna = (Elf32_Vernaux *) (uintptr_t) buf2; + if (ed->flags & SOLARIS_FMT) { + if (!first) + PRT("%40.40s", ""); + else + first = 0; + PRT("%s\n", get_string(ed, s->link, + vna->vna_name)); + } else { + PRT("\t\tvna: %d\n", j++); + PRT("\t\t\tvna_hash: %u\n", vna->vna_hash); + PRT("\t\t\tvna_flags: %u\n", vna->vna_flags); + PRT("\t\t\tvna_other: %u\n", vna->vna_other); + PRT("\t\t\tvna_name: %s\n", + get_string(ed, s->link, vna->vna_name)); + PRT("\t\t\tvna_next: %u\n", vna->vna_next); + } + if (vna->vna_next == 0) + break; + buf2 += vna->vna_next; + } + if (vn->vn_next == 0) + break; + buf += vn->vn_next; + } +} + +/* + * Dump the symbol-versioning sections. + */ +static void +elf_print_symver(struct elfdump *ed) +{ + struct section *s; + int i; + + for (i = 0; (size_t)i < ed->shnum; i++) { + s = &ed->sl[i]; + if (!STAILQ_EMPTY(&ed->snl) && !find_name(ed, s->name)) + continue; + if (s->type == SHT_SUNW_verdef) + elf_print_verdef(ed, s); + if (s->type == SHT_SUNW_verneed) + elf_print_verneed(ed, s); + } +} + +/* + * Dump the ELF checksum. See gelf_checksum(3) for details. + */ +static void +elf_print_checksum(struct elfdump *ed) +{ + + if (!STAILQ_EMPTY(&ed->snl)) + return; + + PRT("\nelf checksum: %#lx\n", gelf_checksum(ed->elf)); +} + +#define USAGE_MESSAGE "\ +Usage: %s [options] file...\n\ + Display information about ELF objects and ar(1) archives.\n\n\ + Options:\n\ + -a Show all information.\n\ + -c Show shared headers.\n\ + -d Show dynamic symbols.\n\ + -e Show the ELF header.\n\ + -G Show the GOT.\n\ + -H | --help Show a usage message and exit.\n\ + -h Show hash values.\n\ + -i Show the dynamic interpreter.\n\ + -k Show the ELF checksum.\n\ + -n Show the contents of note sections.\n\ + -N NAME Show the section named \"NAME\".\n\ + -p Show the program header.\n\ + -r Show relocations.\n\ + -s Show the symbol table.\n\ + -S Use the Solaris elfdump format.\n\ + -v Show symbol-versioning information.\n\ + -V | --version Print a version identifier and exit.\n\ + -w FILE Write output to \"FILE\".\n" + +static void +usage(void) +{ + fprintf(stderr, USAGE_MESSAGE, ELFTC_GETPROGNAME()); + exit(EXIT_FAILURE); +} |