liblttng-ctl: Hide mangled C++ symbols

A number of functions in C++ have default visibility. To avoid those
symbols being erroneously available to those who load the liblttng-ctl
library, a version script has been added to set the visibility of all
name-mangled symbols to local.

Change-Id: If2df7cfbadb0d1b9d3747cdf4990cbc942118e6f
Signed-off-by: Kienan Stewart <kstewart@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/src/lib/lttng-ctl/Makefile.am b/src/lib/lttng-ctl/Makefile.am
index 5700a86b2785ce94dde052e1a79f4cbe2e48268a..eb18ea517747ae70e4e526bb1a1f86d449cd00de 100644 (file)
--- a/src/lib/lttng-ctl/Makefile.am
+++ b/src/lib/lttng-ctl/Makefile.am
@@ -21,11 +21,13 @@ liblttng_ctl_la_SOURCES = \
 
 liblttng_ctl_la_LDFLAGS = \
                $(LT_NO_UNDEFINED) \
-               -export-symbols $(srcdir)/liblttng-ctl.sym
+               -export-symbols $(srcdir)/liblttng-ctl.sym \
+               -Wl,--version-script=$(srcdir)/liblttng-ctl.map
 
 EXTRA_liblttng_ctl_la_DEPENDENCIES = liblttng-ctl.sym
 
-EXTRA_DIST = liblttng-ctl.sym
+EXTRA_DIST = liblttng-ctl.map \
+               liblttng-ctl.sym
 
 liblttng_ctl_la_LIBADD = \
                $(top_builddir)/src/common/libsessiond-comm.la \

diff --git a/src/lib/lttng-ctl/liblttng-ctl.map b/src/lib/lttng-ctl/liblttng-ctl.map
new file mode 100644 (file)
index 0000000..e3038f3
--- /dev/null
+++ b/src/lib/lttng-ctl/liblttng-ctl.map
@@ -0,0 +1,4 @@
+{
+  local:
+    _Z*;
+};