Files
android_kernel_xiaomi_sm8450/tools/perf/util
Taeung Song e7cb9de211 perf annotate: More exactly grep -v of the objdump command
The 'grep -v "filename"' applied to the objdump command output cause a
side effect eliminating filename:linenr of output of 'objdump -l' if the
object file name and source file name are the same, fix it.

E.g. the output of the following objdump command in symbol__disassemble():

    $ objdump -l -d -S -C /home/taeung/hello --start-address=...

    /home/taeung/hello:     file format elf64-x86-64

    Disassembly of section .text:

    0000000000400526 <main>:
    main():
    /home/taeung/hello.c:4

    void main()
    {
      400526:	55                   	push   %rbp
      400527:	48 89 e5             	mov    %rsp,%rbp
    /home/taeung/hello.c:5
    ...

But it uses grep -v "filename" e.g. "/home/taeung/hello" in the objdump
command to remove the first line containing file name and file format
("/home/taeung/hello:     file format elf64-x86-64"):

Before:

    $ objdump -l -d -S -C /home/taeung/hello | grep /home/taeung/hello

But this causes a side effect, removing filename:linenr too, because the
object file and source file have the same name e.g. "/home/taueng/hello",
"/home/taeung/hello.c"

So more do a better match by using grep -v as below to correctly remove
that first line:

    "/home/taeung/hello:     file format elf64-x86-64"

After:

    $ objdump -l -d -S -C /home/taeung/hello | grep /home/taeung/hello:

Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1489978617-31396-5-git-send-email-treeze.taeung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2017-03-21 15:42:25 -03:00
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