He Zhe 88b88dd7d8 perf bench internals inject-build-id: Fix trap divide when collecting just one DSO ...

[ Upstream commit d9180e23fb ]

'perf bench internals inject-build-id' suffers from the following error when
only one DSO is collected.

  # perf bench internals inject-build-id -v
    Collected 1 DSOs
  traps: internals-injec[2305] trap divide error
  ip:557566ba6394 sp:7ffd4de97fe0 error:0 in perf[557566b2a000+23d000]
    Build-id injection benchmark
    Iteration #1
  Floating point exception

This patch removes the unnecessary minus one from the divisor which also
corrects the randomization range.

Signed-off-by: He Zhe <zhe.he@windriver.com>
Fixes: 0bf02a0d80 ("perf bench: Add build-id injection benchmark")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240507065026.2652929-1-zhe.he@windriver.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-06-12 11:12:26 +02:00

..

bench.h

Merge tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

2023-09-09 20:06:17 -07:00

breakpoint.c

perf bench breakpoint: Skip run if no breakpoints available

2023-08-23 08:39:02 -03:00

Build

Merge tag 'perf-tools-for-v6.6-1-2023-09-05' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

2023-09-09 20:06:17 -07:00

epoll-ctl.c

perf bench epoll: Fix missing frees/puts on the exit path

2023-06-12 18:18:14 -03:00

epoll-wait.c

perf bench epoll: Fix missing frees/puts on the exit path

2023-06-12 18:18:14 -03:00

evlist-open-close.c

…

find-bit-bench.c

…

futex-hash.c

…

futex-lock-pi.c

perf bench futex: Avoid memory leaks from pthread_attr

2023-06-12 18:18:14 -03:00

futex-requeue.c

perf bench futex: Avoid memory leaks from pthread_attr

2023-06-12 18:18:14 -03:00

futex-wake-parallel.c

perf bench futex: Avoid memory leaks from pthread_attr

2023-06-12 18:18:14 -03:00

futex-wake.c

perf bench futex: Avoid memory leaks from pthread_attr

2023-06-12 18:18:14 -03:00

futex.h

…

inject-buildid.c

perf bench internals inject-build-id: Fix trap divide when collecting just one DSO

2024-06-12 11:12:26 +02:00

kallsyms-parse.c

…

mem-functions.c

…

mem-memcpy-arch.h

…

mem-memcpy-x86-64-asm-def.h

tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'

2023-05-17 10:42:19 -03:00

mem-memcpy-x86-64-asm.S

tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'

2023-05-17 10:42:19 -03:00

mem-memset-arch.h

…

mem-memset-x86-64-asm-def.h

tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'

2023-05-17 10:42:19 -03:00

mem-memset-x86-64-asm.S

tools headers: Update the copy of x86's mem{cpy,set}_64.S used in 'perf bench'

2023-05-17 10:42:19 -03:00

numa.c

…

pmu-scan.c

perf pmu: Abstract alias/event struct

2023-08-24 10:42:46 -03:00

sched-messaging.c

perf bench sched messaging: Free contexts on exit

2023-06-12 18:18:14 -03:00

sched-pipe.c

…

sched-seccomp-notify.c

perf bench sched-seccomp-notify: Use the tools copy of seccomp.h UAPI

2023-09-13 08:49:00 -03:00

synthesize.c

…

syscall.c

…

uprobe.c

perf bench uprobe: Remove lib64 from libc.so.6 binary path

2024-06-12 11:12:19 +02:00