linux-next/tools/build/feature/test-libtracefs.c
Guilherme Amadio 0f0e1f4456 perf build: Use pkg-config for feature check for libtrace{event,fs}
Needed to add required include directories for the feature detection
to succeed. The header tracefs.h is installed either into the include
directory /usr/include/tracefs/tracefs.h when using the Makefile, or
into /usr/include/libtracefs/tracefs.h when using meson to build
libtracefs. The header tracefs.h uses #include <event-parse.h> from
libtraceevent, so pkg-config needs to pick the correct include directory
for libtracefs and add the one for libtraceevent to succeed.

Note that in baa2ca59ec1e31ccbe3f24ff0368152b36f68720 the variable
LIBTRACEEVENT_DIR was introduced, and now the method to compile against
non-standard locations requires PKG_CONFIG_PATH to be set instead, which
works for both libtraceevent and libtracefs.

Signed-off-by: Guilherme Amadio <amadio@gentoo.org>
Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240606153625.2255470-2-amadio@gentoo.org
2024-06-21 16:19:03 -07:00

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C

// SPDX-License-Identifier: GPL-2.0
#include <tracefs.h>
int main(void)
{
struct tracefs_instance *inst = tracefs_instance_create("dummy");
tracefs_instance_destroy(inst);
return 0;
}