tracing: Adjust cmd_check_undefined to show unexpected undefined symbols

Browse source

When the check_undefined command in kernel/trace/Makefile fails, there
is no output, making it hard to understand why the build failed. Capture
the output of the $(NM) + grep command and print it when failing to make
it clearer what the problem is.

Fixes: a717943d8e ("tracing: Check for undefined symbols in simple_ring_buffer")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Vincent Donnefort <vdonnefort@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260320-cmd_check_undefined-verbose-v1-1-54fc5b061f94@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

...

This commit is contained in:

Nathan Chancellor 2026-03-20 14:29:33 -07:00 • committed by Marc Zyngier

parent d772964394

commit 58b4bd1839

1 changed files with 7 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

8

kernel/trace/Makefile

View file