hupu a5edf3550f perf subcmd: avoid crash in exclude_cmds when excludes is empty ...

When cross-compiling the perf tool for ARM64, `perf help` may crash
with the following assertion failure:

  help.c:122: exclude_cmds: Assertion `cmds->names[ci] == NULL' failed.

This happens when the perf binary is not named exactly "perf" or when
multiple "perf-*" binaries exist in the same directory. In such cases,
the `excludes` command list can be empty, which leads to the final
assertion in exclude_cmds() being triggered.

Add a simple guard at the beginning of exclude_cmds() to return early
if excludes->cnt is zero, preventing the crash.

Signed-off-by: hupu <[email protected]>
Reported-by: Guilherme Amadio <[email protected]>
Reviewed-by: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Namhyung Kim <[email protected]>

2025-09-12 17:51:35 -07:00

..

Build

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exec-cmd.c

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exec-cmd.h

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help.c

perf subcmd: avoid crash in exclude_cmds when excludes is empty

2025-09-12 17:51:35 -07:00

help.h

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Makefile

tools: Drop nonsensical -O6

2024-09-11 13:08:36 -03:00

pager.c

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pager.h

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parse-options.c

libsubcmd: Silence compiler warning

2024-10-23 14:38:34 -07:00

parse-options.h

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run-command.c

tools subcmd: Tighten the filename size in check_if_command_finished

2025-07-22 18:17:53 -07:00

run-command.h

tools subcmd: Add check_if_command_finished()

2024-04-08 17:43:20 -03:00

sigchain.c

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sigchain.h

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subcmd-config.c

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subcmd-config.h

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subcmd-util.h

libsubcmd: Move va_end() before exit

2024-11-13 16:27:35 -03:00