WSL2-Linux-Kernel/tools
Kan Liang 27730c8cd6 perf script: Fix PERF_SAMPLE_WEIGHT_STRUCT support
-F weight in perf script is broken.

  # ./perf mem record
  # ./perf script -F weight
  Samples for 'dummy:HG' event do not have WEIGHT attribute set. Cannot
print 'weight' field.

The sample type, PERF_SAMPLE_WEIGHT_STRUCT, is an alternative of the
PERF_SAMPLE_WEIGHT sample type. They share the same space, weight. The
lower 32 bits are exactly the same for both sample type. The higher 32
bits may be different for different architecture. For a new kernel on
x86, the PERF_SAMPLE_WEIGHT_STRUCT is used. For an old kernel or other
ARCHs, the PERF_SAMPLE_WEIGHT is used.

With -F weight, current perf script will only check the input string
"weight" with the PERF_SAMPLE_WEIGHT sample type. Because the commit
ea8d0ed6ea ("perf tools: Support PERF_SAMPLE_WEIGHT_STRUCT") didn't
update the PERF_SAMPLE_WEIGHT_STRUCT sample type for perf script. For a
new kernel on x86, the check fails.

Use PERF_SAMPLE_WEIGHT_TYPE, which supports both sample types, to
replace PERF_SAMPLE_WEIGHT

Fixes: ea8d0ed6ea ("perf tools: Support PERF_SAMPLE_WEIGHT_STRUCT")
Reported-by: Joe Mario <jmario@redhat.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Joe Mario <jmario@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Joe Mario <jmario@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: https://lore.kernel.org/r/1632929894-102778-1-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-10-31 12:51:41 -03:00
..
accounting
arch A set of fixes for X86: 2021-09-26 10:09:20 -07:00
bootconfig tools/bootconfig: Define memblock_free_ptr() to fix build error 2021-09-15 09:49:48 -07:00
bpf
build perf cs-etm: Update OpenCSD decoder for ETE 2021-09-03 08:16:00 -03:00
cgroup
debugging
edid
firewire
firmware
gpio
hv
iio
include tools include UAPI: Sync sound/asound.h copy with the kernel sources 2021-10-05 14:51:33 -03:00
io_uring
kvm/kvm_stat KVM: kvm_stat: do not show halt_wait_ns 2021-10-18 14:07:18 -04:00
laptop
leds
lib libperf tests: Fix test_stat_cpu 2021-10-14 15:41:35 -03:00
memory-model
objtool objtool: Update section header before relocations 2021-10-06 20:11:57 -07:00
pci
pcmcia
perf perf script: Fix PERF_SAMPLE_WEIGHT_STRUCT support 2021-10-31 12:51:41 -03:00
power
rcu
scripts
spi
testing tools/testing/selftests/vm/split_huge_page_test.c: fix application of sizeof to pointer 2021-10-28 17:18:55 -07:00
thermal/tmon
time
tracing
usb usb: testusb: Fix for showing the connection speed 2021-09-14 10:31:41 +02:00
virtio
vm tools/vm/page-types: remove dependency on opt_file for idle page tracking 2021-09-24 16:13:35 -07:00
wmi
Makefile