OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
linux/tools
History
Milian Wolff 6754075915 perf unwind: Use addr_location::addr instead of ip for entries 
This fixes the srcline translation for call chains of user space
applications.

Before we got:

    perf report --stdio --no-children -s sym,srcline -g address
     8.92%  [.] main                                 mandelbrot.h:41
            |
            |--3.70%--main +8390240
            |          __libc_start_main +139950056726769
            |          _start +8388650
            |
            |--2.74%--main +8390189
            |
             --2.08%--main +8390296
                       __libc_start_main +139950056726769
                       _start +8388650

     7.59%  [.] main                                 complex:1326
            |
            |--4.79%--main +8390203
            |          __libc_start_main +139950056726769
            |          _start +8388650
            |
             --2.80%--main +8390219

     7.12%  [.] __muldc3                             libgcc2.c:1945
            |
            |--3.76%--__muldc3 +139950060519490
            |          main +8390224
            |          __libc_start_main +139950056726769
            |          _start +8388650
            |
             --3.32%--__muldc3 +139950060519512
                       main +8390224

With this patch applied, we instead get:

    perf report --stdio --no-children -s sym,srcline -g address
     8.92%  [.] main                                 mandelbrot.h:41
            |
            |--3.70%--main mandelbrot.h:41
            |          __libc_start_main +241
            |          _start +4194346
            |
            |--2.74%--main mandelbrot.h:41
            |
             --2.08%--main mandelbrot.h:41
                       __libc_start_main +241
                       _start +4194346

     7.59%  [.] main                                 complex:1326
            |
            |--4.79%--main complex:1326
            |          __libc_start_main +241
            |          _start +4194346
            |
             --2.80%--main complex:1326

     7.12%  [.] __muldc3                             libgcc2.c:1945
            |
            |--3.76%--__muldc3 libgcc2.c:1945
            |          main mandelbrot.h:39
            |          __libc_start_main +241
            |          _start +4194346
            |
             --3.32%--__muldc3 libgcc2.c:1945
                       main mandelbrot.h:39

Suggested-and-Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Milian Wolff <milian.wolff@kdab.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
LPU-Reference: 20160816153926.11288-1-milian.wolff@kdab.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 		2016-08-16 15:23:29 -03:00
..
arch tools: Sync kvm related header files for arm64 and s390 2016-08-15 18:11:17 -03:00
build perf build: Add sdt feature detection 2016-07-13 23:09:09 -03:00
cgroup
…
firewire
…
gpio tools/gpio: add install section 2016-06-23 11:07:13 +02:00
hv tools: hv: Add a script to help bonding synthetic and VF NICs 2016-07-12 10:41:53 -07:00
iio iio: generic_buffer: Fix --trigger-num option 2016-06-11 17:38:06 +01:00
include toops: Sync tools/include/uapi/linux/bpf.h with the kernel 2016-08-09 11:48:07 -03:00
kvm/kvm_stat tools: kvm_stat: Add comments 2016-05-25 16:12:06 +02:00
laptop/freefall
…
lguest tools/lguest: Force disable tboot and APM 2016-04-22 10:29:03 +02:00
lib perf/core improvements and fixes: 2016-08-04 11:02:38 +02:00
net tools: bpf_jit_disasm: check for klogctl failure 2016-05-08 23:32:59 -04:00
nfsd
…
objtool Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-07-30 11:54:53 -07:00
perf perf unwind: Use addr_location::addr instead of ip for entries 2016-08-16 15:23:29 -03:00
power ACPI material for v4.8-rc1 2016-07-26 17:56:45 -07:00
scripts tools build: Fix objtool build with ARCH=x86_64 2016-07-22 16:37:44 -03:00
spi spi: spidev_test: Fix typo in error message 2015-12-08 17:58:56 +00:00
testing Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm 2016-08-12 12:28:23 -07:00
thermal/tmon
…
time
…
usb usbip: adding names db to port operation 2016-05-03 14:32:07 -07:00
virtio ptr_ring: support resizing multiple queues 2016-07-01 05:32:17 -04:00
vm tools/vm/page_owner: increase temporary buffer size 2016-07-26 16:19:19 -07:00
Makefile tools/gpio: add install section 2016-06-23 11:07:13 +02:00