Em Wed, Dec 05, 2018 at 01:28:38PM +0100, Jiri Olsa escreveu:
> 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>
Trying to fix this:
alpine:3.4
Downloading http://x.x.x.x/perf/perf-4.20.0-rc3.tar.xz...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1426k 100 1426k 0 0 232M 0 --:--:-- --:--:-- --:--:-- 232M
8932875925270caf72895c32013a678e9c19aa0d
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-alpine-linux-musl/5.3.0/lto-wrapper
Target: x86_64-alpine-linux-musl
Configured with: /home/buildozer/aports/main/gcc/src/gcc-5.3.0/configure
--prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info
--build=x86_64-alpine-linux-musl --host=x86_64-alpine-linux-musl
--target=x86_64-alpine-linux-musl --with-pkgversion='Alpine 5.3.0'
--enable-checking=release --disable-fixed-point --disable-libstdcxx-pch
--disable-multilib --disable-nls --disable-werror --disable-symvers
--enable-__cxa_atexit --enable-esp --enable-cloog-backend
--enable-languages=c,c++,objc,java,fortran,ada --disable-libssp
--disable-libmudflap --disable-libsanitizer --enable-shared --enable-threads
--enable-tls --with-system-zlib
Thread model: posix
gcc version 5.3.0 (Alpine 5.3.0)
CC /tmp/build/perf/util/srccode.o
In file included from util/srccode.c:19:0:
/usr/include/sys/fcntl.h:1:2: error: #warning redirecting incorrect #include
<sys/fcntl.h> to <fcntl.h> [-Werror=cpp]
#warning redirecting incorrect #include <sys/fcntl.h> to <fcntl.h>
^
CC /tmp/build/perf/util/data.o
cc1: all warnings being treated as errors
mv: can't rename '/tmp/build/perf/util/.srccode.o.tmp': No such file or
directory
/git/linux/tools/build/Makefile.build:96: recipe for target
'/tmp/build/perf/util/srccode.o' failed
make[4]: *** [/tmp/build/perf/util/srccode.o] Error 1
make[4]: *** Waiting for unfinished jobs....
CC /tmp/build/perf/tests/attr.o
