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[objdump Question] How to sort assembly code by each line number ?
- From: Taeung Song <treeze dot taeung at gmail dot com>
- To: binutils at sourceware dot org
- Date: Tue, 21 Feb 2017 15:01:48 +0900
- Subject: [objdump Question] How to sort assembly code by each line number ?
- Authentication-results: sourceware.org; auth=none
Hi all :)
I'm modifying perf-annotate (that are Linux kernel : tools/perf)
a perf tool use objdump with -d and -l or -S.
By the way,
If objdump has the option sorting assembly code according to line numbers,
I want to use the option.
For example,
I want to sort the below output.
(especially parts of assembly code of line number 34)
--
Disassembly of section .text:
0000000000400966 <get_cond_maxprice>:
get_cond_maxprice():
...
/home/taeung/workspace/perf-test/old_pack_knapsack.c:32
40098d: c7 45 f0 00 00 00 00 movl $0x0,-0x10(%rbp)
/home/taeung/workspace/perf-test/old_pack_knapsack.c:34
400994: c7 45 ec 01 00 00 00 movl $0x1,-0x14(%rbp)
40099b: eb 4d jmp 4009ea <get_cond_maxprice+0x84>
/home/taeung/workspace/perf-test/old_pack_knapsack.c:37
40099d: 8b 55 dc mov -0x24(%rbp),%edx
...
/home/taeung/workspace/perf-test/old_pack_knapsack.c:34 (discriminator 2)
4009e6: 83 45 ec 01 addl $0x1,-0x14(%rbp)
/home/taeung/workspace/perf-test/old_pack_knapsack.c:34 (discriminator 1)
4009ea: 8b 45 ec mov -0x14(%rbp),%eax
4009ed: 3b 45 f4 cmp -0xc(%rbp),%eax
4009f0: 76 ab jbe 40099d
...
If there isn't the option for it, I'd manually parse the output from
'objdump -dl'..
Thanks,
Taeung