On Mon, Dec 03, 2018 at 04:18:48PM -0800, Andi Kleen wrote:
> From: Andi Kleen <a...@linux.intel.com>
>
> When looking at PT or brstackinsn traces with perf script
> it can be very useful to see the source code. This adds a simple
> facility to print them with perf script, if the information
> is available through dwarf
>
> % perf record ...
> % perf script -F insn,ip,sym,srccode
> ...
>
> 4004c6 main
> 5 for (i = 0; i < 10000000; i++)
> 4004cd main
> 5 for (i = 0; i < 10000000; i++)
> 4004c6 main
> 5 for (i = 0; i < 10000000; i++)
> 4004cd main
> 5 for (i = 0; i < 10000000; i++)
> 4004cd main
> 5 for (i = 0; i < 10000000; i++)
> 4004cd main
> 5 for (i = 0; i < 10000000; i++)
> 4004cd main
> 5 for (i = 0; i < 10000000; i++)
> 4004cd main
> 5 for (i = 0; i < 10000000; i++)
> 4004b3 main
> 6 v++;
>
> % perf record -b ...
> % perf script -F insn,ip,sym,srccode,brstackinsn
>
> ...
> main+22:
> 0000000000400543 insn: e8 ca ff ff ff # PRED
> |18 f1();
> f1:
> 0000000000400512 insn: 55
> |10 {
> 0000000000400513 insn: 48 89 e5
> 0000000000400516 insn: b8 00 00 00 00
> |11 f2();
> 000000000040051b insn: e8 d6 ff ff ff # PRED
> f2:
> 00000000004004f6 insn: 55
> |5 {
> 00000000004004f7 insn: 48 89 e5
> 00000000004004fa insn: 8b 05 2c 0b 20 00
> |6 c = a / b;
> 0000000000400500 insn: 8b 0d 2a 0b 20 00
> 0000000000400506 insn: 99
> 0000000000400507 insn: f7 f9
> 0000000000400509 insn: 89 05 29 0b 20 00
> 000000000040050f insn: 90
> |7 }
> 0000000000400510 insn: 5d
> 0000000000400511 insn: c3 # PRED
> f1+14:
> 0000000000400520 insn: b8 00 00 00 00
> |12 f2();
> 0000000000400525 insn: e8 cc ff ff ff # PRED
> f2:
> 00000000004004f6 insn: 55
> |5 {
> 00000000004004f7 insn: 48 89 e5
> 00000000004004fa insn: 8b 05 2c 0b 20 00
> |6 c = a / b;
>
> Not supported for callchains currently, would need some
> layout changes there.
nice, works nicely, especialy with --xed
Acked-by: Jiri Olsa <jo...@kernel.org>
I need to check, but is there a way to make this work with
perf-with-kcore script? looks like we endup with kcore and
won't allow vmlinux lookups for debug info
thanks,
jirka
