diff options
| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-19 08:44:17 -0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-10-25 17:40:48 -0300 |
| commit | f1bdebbb67bd21d7c5dfc42f313f2f54002440b8 (patch) | |
| tree | b161f1bdc327d729c0b1b5a94f5a80cdf823b6a6 /tools/build/Makefile.feature | |
| parent | perf bpf: Fix build with libbpf 0.7.0 by adding prototype for bpf_load_program() (diff) | |
| download | wireguard-linux-f1bdebbb67bd21d7c5dfc42f313f2f54002440b8.tar.xz wireguard-linux-f1bdebbb67bd21d7c5dfc42f313f2f54002440b8.zip | |
perf bpf: Fix build with libbpf 0.7.0 by checking if bpf_program__set_insns() is available
During the transition to libbpf 1.0 some functions that perf used were
deprecated and finally removed from libbpf, so bpf_program__set_insns()
was introduced for perf to continue to use its bpf loader.
But when build with LIBBPF_DYNAMIC=1 we now need to check if that
function is available so that perf can build with older libbpf versions,
even if the end result is emitting a warning to the user that the use
of the perf BPF loader requires a newer libbpf, since bpf_program__set_insns()
touches libbpf objects internal state.
This affects only 'perf trace' when using bpf C code or pre-compiled
bytecode as an event.
Noticed on RHEL9, that has libbpf 0.7.0, where bpf_program__set_insns()
isn't available.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build/Makefile.feature')
| -rw-r--r-- | tools/build/Makefile.feature | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 57619f240b56..38f8851bd7cb 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -103,6 +103,7 @@ FEATURE_TESTS_EXTRA := \ libbpf-bpf_prog_load \ libbpf-bpf_object__next_program \ libbpf-bpf_object__next_map \ + libbpf-bpf_program__set_insns \ libbpf-bpf_create_map \ libpfm4 \ libdebuginfod \ |