Is there a tool for reading Mac OS X binaries that would print information about relocation tables and symbol offsets similar to this readelf output?
readelf -r app
Relocation section '.rel.dyn' at offset 0x5ec contains 2 entries:
Offset Info Type Sym.Value Sym. Name
08049d58 00001706 R_386_GLOB_DAT 00000000 __gmon_start__
08049d60 00000305 R_386_COPY 08049d60 _ZSt4cout
Relocation section '.rel.plt' at offset 0x5fc contains 13 entries:
Offset Info Type Sym.Value Sym. Name
08049d24 00000107 R_386_JUMP_SLOT 0804868c print
08049d28 00000207 R_386_JUMP_SLOT 0804869c _ZNSt8ios_base4InitC1E
08049d2c 00000507 R_386_JUMP_SLOT 080486ac _ZStlsISt11char_traits
08049d30 00000607 R_386_JUMP_SLOT 080486bc _ZNSolsEPFRSoS_E
08049d34 00000707 R_386_JUMP_SLOT 08048664 _init
08049d38 00000807 R_386_JUMP_SLOT 080486dc sleep
08049d3c 00000907 R_386_JUMP_SLOT 080486ec _ZNKSsixEj
08049d40 00000b07 R_386_JUMP_SLOT 080486fc _ZNKSs4sizeEv
08049d44 00000c07 R_386_JUMP_SLOT 0804870c __libc_start_main
08049d48 00000d07 R_386_JUMP_SLOT 08048ae4 _fini
08049d4c 00001307 R_386_JUMP_SLOT 0804872c _ZSt4endlIcSt11char_tr
08049d50 00001507 R_386_JUMP_SLOT 0804873c __gxx_personality_v0
08049d54 00001607 R_386_JUMP_SLOT 0804874c _ZNSt8ios_base4InitD1E
In this example, print is a function loaded from a shared library (I wrote) at runtime. readelf is able to display information about its location inside the app binary.