mirror-linux/tools
James Clark 9de0736973 perf cs-etm: Fix corrupt inject files when only last branch option is enabled
'perf inject' with Coresight data generates files that cannot be opened
when only the last branch option is specified:

  perf inject -i perf.data --itrace=l -o inject.data
  perf script -i inject.data
  0x33faa8 [0x8]: failed to process type: 9 [Bad address]

This is because cs_etm__synth_instruction_sample() is called even when
the sample type for instructions hasn't been setup. Last branch records
are attached to instruction samples so it doesn't make sense to generate
them when --itrace=i isn't specified anyway.

This change disables all calls of cs_etm__synth_instruction_sample()
unless --itrace=i is specified, resulting in a file with no samples if
only --itrace=l is provided, rather than a bad file.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220210200620.1227232-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-16 13:49:25 -03:00
..
accounting delayacct: track delays from memory compact 2022-01-20 08:52:55 +02:00
arch tools headers cpufeatures: Sync with the kernel sources 2022-02-01 12:21:47 -03:00
bootconfig
bpf Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2022-02-03 13:42:38 -08:00
build Merge remote-tracking branch 'torvalds/master' into perf/core 2022-01-13 10:20:59 -03:00
cgroup
counter
debugging
edid
firewire
firmware
gpio
hv
iio iio: event_monitor: Flush output on event 2021-12-16 12:20:35 +00:00
include tools headers UAPI: Sync linux/perf_event.h with the kernel sources 2022-02-16 13:49:24 -03:00
io_uring
kvm/kvm_stat
laptop
leds
lib libperf: Fix 32-bit build for tests uint64_t printf 2022-02-16 13:49:24 -03:00
memory-model
objtool objtool: Fix truncated string warning 2022-01-24 10:09:06 -08:00
pci
pcmcia
perf perf cs-etm: Fix corrupt inject files when only last branch option is enabled 2022-02-16 13:49:25 -03:00
power More ACPI updates for 5.17-rc1 2022-01-18 08:51:51 +02:00
rcu
scripts tools: Ignore errors from `which' when searching a GCC toolchain 2022-02-01 23:04:12 +01:00
spi
testing Networking fixes for 5.17-rc4, including fixes from netfilter and can. 2022-02-10 16:01:22 -08:00
thermal/tmon
time
tracing rtla: Fix segmentation fault when failing to enable -t 2022-02-08 11:23:09 -05:00
usb
virtio
vm
wmi
Makefile