6.5-stable review patch. If anyone has any objections, please let me know.
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From: Arnaldo Carvalho de Melo acme@redhat.com
[ Upstream commit c1783ddfb62420c44cdf4672dad2046f056c624b ]
By default perf will fail the build if the development files for libtraceevent are not available.
To build perf without libtraceevent support, disabling several features such as 'perf trace', one needs to add NO_LIBTRACEVENT=1 to the make command line.
Add the missing comments about that to the tools/perf/Makefile.perf file, just like all the other such command line toggles.
Fixes: 378ef0f5d9d7f465 ("perf build: Use libtraceevent from the system") Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Reviewed-by: Ian Rogers irogers@google.com Link: https://lore.kernel.org/r/ZR6+MhXtLnv6ow6E@kernel.org Signed-off-by: Namhyung Kim namhyung@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/Makefile.perf | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index f178b36c69402..997b9387ab273 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -69,6 +69,10 @@ include ../scripts/utilities.mak # Define NO_LIBDW_DWARF_UNWIND if you do not want libdw support # for dwarf backtrace post unwind. # +# Define NO_LIBTRACEEVENT=1 if you don't want libtraceevent to be linked, +# this will remove multiple features and tools, such as 'perf trace', +# that need it to read tracefs event format files, etc. +# # Define NO_PERF_READ_VDSO32 if you do not want to build perf-read-vdso32 # for reading the 32-bit compatibility VDSO in 64-bit mode #