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linux/tools/build/feature/test-libtraceevent.c

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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>
2021-04-28 11:20:23 +02:00
// 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;
}
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