initial support for static userspace probes via systemtap
This adds a --enable-systemtap configure option, which will then
add static tracepoints to the generated libosmocore binary.
At this point, only two tracepoints are supported: log_start
and log_done. They can be used to trace the amount of time
a libosmocore-using application spends in potentiall blocking calls to
log to stderr or to files.
Related: OS#4311
Change-Id: I7e1ab664241deb524c9582cbd1bec31af46c747e
diff --git a/src/Makefile.am b/src/Makefile.am
index dd31db8..a2566a3 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -29,6 +29,7 @@
use_count.c \
exec.c \
it_q.c \
+ probes.d \
$(NULL)
if HAVE_SSSE3
@@ -82,5 +83,16 @@
libosmocore_la_LIBADD += $(LIBMNL_LIBS)
endif
+if ENABLE_SYSTEMTAP
+probes.h: probes.d
+ $(DTRACE) -C -h -s $< -o $@
+
+probes.lo: probes.d
+ $(LIBTOOL) --mode=compile $(AM_V_lt) --tag=CC env CFLAGS="$(CFLAGS)" $(DTRACE) -C -G -s $< -o $@
+
+BUILT_SOURCES += probes.h probes.lo
+libosmocore_la_LIBADD += probes.lo
+endif
+
crc%gen.c: crcXXgen.c.tpl
$(AM_V_GEN)sed -e's/XX/$*/g' $< > $@