linux-stable/tools/build/feature/test-libbpf.c at 74043489fcb5e5ca4074133582b5b8011b67f9e7 - mirrors/linux-stable - Git - Batts Cloud

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Ian Rogers 56d5229471 tools build: Pass libbpf feature only if libbpf 1.0+

libbpf 1.0 represented a cleanup and stabilization of APIs. Simplify
development by only passing the feature test if libbpf 1.0 is installed.

Committer notes:

Change 'make -C tools/perf build-test' so that the LIBBPF_DYNAMIC=1 test
runs only if libbpf is >= 1.0.

Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Christy Lee <christylee@fb.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Monnet <quentin@isovalent.com>
Cc: Roberto Sassu <roberto.sassu@huawei.com>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20230116010115.490713-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2023-03-14 08:29:33 -03:00

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 // SPDX-License-Identifier: GPL-2.0
 #include <bpf/libbpf.h>
 #if !defined(LIBBPF_MAJOR_VERSION) || (LIBBPF_MAJOR_VERSION < 1)
 #error At least libbpf 1.0 is required for Linux tools.
 #endif
 int main(void)
 {
 	return bpf_object__open("test") ? 0 : -1;
 }