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

[ Upstream commit d9180e23fbfa3875424d3a6b28b71b072862a52a ]

'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: 0bf02a0d80427f26 ("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

perf tools changes for v6.6:

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

perf tools changes for v6.6:

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

perf evlist: Rename cpus to user_requested_cpus

2022-04-01 16:19:35 -03:00

find-bit-bench.c

perf bench: Avoid NDEBUG warning

2023-04-04 09:39:56 -03:00

futex-hash.c

perf bench: Update use of pthread mutex/cond

2022-10-04 08:55:19 -03:00

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

Revert "perf bench futex: Add support for 32-bit systems with 64-bit time_t"

2021-11-01 11:42:54 -03:00

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

perf bench: Add kallsyms parsing

2020-05-05 16:35:32 -03:00

mem-functions.c

perf bench mem: Always memset source before memcpy

2020-08-13 09:34:26 -03:00

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

perf bench numa: Fix type of loop iterator in do_work, it should be 'long'

2023-04-04 09:39:56 -03:00

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

perf tools: Cast (struct timeval).tv_sec when printing

2021-03-06 16:54:24 -03:00

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

perf tools: Allow controlling synthesizing PERF_RECORD_ metadata events during record

2021-09-17 08:44:19 -03:00

syscall.c

perf bench syscall: Add fork syscall benchmark

2023-04-04 09:39:55 -03:00

uprobe.c

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

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