Почему бы не использовать objdump?
$ objdump -d print_jmp_buf
print_jmp_buf: file format elf64-x86-64
Disassembly of section .init:
00000000004003f8 <_init>:
4003f8: 48 83 ec 08 sub $0x8,%rsp
4003fc: e8 7b 00 00 00 callq 40047c <call_gmon_start>
<... snip ... >
0000000000400534 <main>:
400534: 55 push %rbp
400535: 53 push %rbx
400536: 48 81 ec d8 00 00 00 sub $0xd8,%rsp
40053d: 48 89 e7 mov %rsp,%rdi
400540: e8 fb fe ff ff callq 400440 <_setjmp@plt>
400545: ba 08 00 00 00 mov $0x8,%edx
40054a: be 40 00 00 00 mov $0x40,%esi
40054f: bf 7c 06 40 00 mov $0x40067c,%edi
400554: b8 00 00 00 00 mov $0x0,%eax
400559: e8 c2 fe ff ff callq 400420 <printf@plt>
40055e: 48 89 e3 mov %rsp,%rbx
400561: 48 8d 6c 24 40 lea 0x40(%rsp),%rbp
400566: 48 8b 33 mov (%rbx),%rsi
400569: bf 83 06 40 00 mov $0x400683,%edi
40056e: b8 00 00 00 00 mov $0x0,%eax
400573: e8 a8 fe ff ff callq 400420 <printf@plt>
400578: 48 83 c3 08 add $0x8,%rbx
40057c: 48 39 eb cmp %rbp,%rbx
40057f: 75 e5 jne 400566 <main+0x32>
400581: b8 00 00 00 00 mov $0x0,%eax
400586: 48 81 c4 d8 00 00 00 add $0xd8,%rsp
40058d: 5b pop %rbx
40058e: 5d pop %rbp
40058f: c3 retq
<...snip...>