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authorArnaldo Carvalho de Melo <acme@redhat.com>2022-10-19 15:44:17 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-10-25 23:40:48 +0300
commitf1bdebbb67bd21d7c5dfc42f313f2f54002440b8 (patch)
treeb161f1bdc327d729c0b1b5a94f5a80cdf823b6a6 /tools/build/Makefile.feature
parent409fb6bdd6eaf64c2da174b48b30ae032a9d7554 (diff)
downloadlinux-f1bdebbb67bd21d7c5dfc42f313f2f54002440b8.tar.xz
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.feature1
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 \