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| author | Michael Petlan <mpetlan@redhat.com> | 2021-04-28 12:20:23 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-04-29 16:31:00 +0300 |
| commit | 56d32d4cac645bac05fa70d935fa5040e3ab6bb3 (patch) | |
| tree | 7afeb1356bfba0afcb92083703d391a1a98eb5ff /tools/build/feature | |
| parent | 2750ce1d4df2e70630d76bc53da160ca43a80d22 (diff) | |
| download | linux-56d32d4cac645bac05fa70d935fa5040e3ab6bb3.tar.xz | |
perf tools: Enable libtraceevent dynamic linking
Currently we support only static linking with kernel's libtraceevent
(tools/lib/traceevent). This patch adds libtraceevent package detection
and support to link perf with it dynamically.
The libtraceevent package status is displayed with:
$ make VF=1 LIBTRACEEVENT_DYNAMIC=1
...
... libtraceevent: [ on ]
Default behavior remains the same (static linking).
Committer testing:
$ make LIBTRACEEVENT_DYNAMIC=1 VF=1 O=/tmp/build/perf -C tools/perf install-bin |& grep traceevent
Makefile.config:1090: *** Error: No libtraceevent devel library found, please install libtraceevent-devel. Stop.
$
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
LPU-Reference: 20210428092023.4009-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build/feature')
| -rw-r--r-- | tools/build/feature/Makefile | 4 | ||||
| -rw-r--r-- | tools/build/feature/test-libtraceevent.c | 12 |
2 files changed, 16 insertions, 0 deletions
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index 3e55edb3ea54..ec203e28407f 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -36,6 +36,7 @@ FILES= \ test-libpython-version.bin \ test-libslang.bin \ test-libslang-include-subdir.bin \ + test-libtraceevent.bin \ test-libcrypto.bin \ test-libunwind.bin \ test-libunwind-debug-frame.bin \ @@ -196,6 +197,9 @@ $(OUTPUT)test-libslang.bin: $(OUTPUT)test-libslang-include-subdir.bin: $(BUILD) -lslang +$(OUTPUT)test-libtraceevent.bin: + $(BUILD) -ltraceevent + $(OUTPUT)test-libcrypto.bin: $(BUILD) -lcrypto diff --git a/tools/build/feature/test-libtraceevent.c b/tools/build/feature/test-libtraceevent.c new file mode 100644 index 000000000000..416b11ffd4b4 --- /dev/null +++ b/tools/build/feature/test-libtraceevent.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <traceevent/trace-seq.h> + +int main(void) +{ + int rv = 0; + struct trace_seq s; + trace_seq_init(&s); + rv += !(s.state == TRACE_SEQ__GOOD); + trace_seq_destroy(&s); + return rv; +} |