Add linker version script to hide non-ABI stable symbols in the client

libraries. While this helps defining a more streamlined ABI, this also requires
linking a lot of additional symbols into some PA client utilities which until
now made use of the non-ABI stable symbols in libpulse. To minimize the effect
on there size a bit, strip unused symbols by linking with -ffunction-sections
-fdata-sections -Wl,--gc-sections

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2018 fefdeb5f-60dc-0310-8127-8f9354f1896f

diff --git a/src/Makefile.am b/src/Makefile.am
index b1393e3..dbb9adc 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -64,7 +64,7 @@ AM_LIBADD = $(PTHREAD_LIBS)
 AM_LDADD = $(PTHREAD_LIBS)
 
 # Only required on some platforms but defined for all to avoid errors
-AM_LDFLAGS = -Wl,-no-undefined
+AM_LDFLAGS = -Wl,-no-undefined -ffunction-sections -fdata-sections -Wl,--gc-sections
 
 if STATIC_BINS
 BINLDFLAGS = -static
@@ -101,7 +101,8 @@ EXTRA_DIST = \
                daemon/esdcompat.in \
                utils/padsp \
                modules/module-defs.h.m4 \
-               daemon/pulseaudio-module-xsmp.desktop
+               daemon/pulseaudio-module-xsmp.desktop \
+               map-file
 
 pulseconf_DATA = \
                default.pa \
@@ -194,12 +195,12 @@ pasuspender_LDADD = $(AM_LDADD) libpulse.la $(LIBSNDFILE_LIBS)
 pasuspender_CFLAGS = $(AM_CFLAGS) $(LIBSNDFILE_CFLAGS)
 pasuspender_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS)
 
-pacmd_SOURCES = utils/pacmd.c pulsecore/pid.c pulsecore/pid.h
+pacmd_SOURCES = utils/pacmd.c pulsecore/pid.c pulsecore/pid.h pulsecore/core-util.c pulsecore/core-util.h pulsecore/core-error.c pulsecore/core-error.h pulsecore/log.c pulsecore/log.h pulsecore/once.c pulsecore/once.h $(PA_THREAD_OBJS)
 pacmd_CFLAGS = $(AM_CFLAGS)
 pacmd_LDADD = $(AM_LDADD) libpulse.la
 pacmd_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS)
 
-pax11publish_SOURCES = utils/pax11publish.c
+pax11publish_SOURCES = utils/pax11publish.c pulsecore/x11prop.c pulsecore/x11prop.h pulse/client-conf.c pulse/client-conf.h pulsecore/authkey.h pulsecore/authkey.c pulsecore/random.h pulsecore/random.c pulsecore/conf-parser.c pulsecore/conf-parser.h pulsecore/core-util.c pulsecore/core-util.h pulsecore/core-error.c pulsecore/core-error.h  pulsecore/log.c pulsecore/log.h pulsecore/once.c pulsecore/once.h $(PA_THREAD_OBJS)
 pax11publish_CFLAGS = $(AM_CFLAGS) $(X_CFLAGS)
 pax11publish_LDADD = $(AM_LDADD) libpulse.la $(X_PRE_LIBS) -lX11 $(X_LIBS) $(X_EXTRA_LIBS)
 pax11publish_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS)
@@ -374,7 +375,7 @@ sync_playback_CFLAGS = $(AM_CFLAGS)
 sync_playback_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS)
 
 interpol_test_SOURCES = tests/interpol-test.c
-interpol_test_LDADD = $(AM_LDADD) libpulse.la
+interpol_test_LDADD = $(AM_LDADD) libpulse.la libpulsecore.la
 interpol_test_CFLAGS = $(AM_CFLAGS)
 interpol_test_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS)
 
@@ -525,7 +526,7 @@ libpulse_la_SOURCES += \
 endif
 
 libpulse_la_CFLAGS = $(AM_CFLAGS)
-libpulse_la_LDFLAGS = -version-info $(LIBPULSE_VERSION_INFO)
+libpulse_la_LDFLAGS = -version-info $(LIBPULSE_VERSION_INFO) -Wl,-version-script=$(srcdir)/map-file
 libpulse_la_LIBADD = $(AM_LIBADD) $(WINSOCK_LIBS) $(LIBICONV)
 
 if HAVE_X11
@@ -541,17 +542,17 @@ endif
 libpulse_simple_la_SOURCES = pulse/simple.c pulse/simple.h
 libpulse_simple_la_CFLAGS = $(AM_CFLAGS)
 libpulse_simple_la_LIBADD = $(AM_LIBADD) libpulse.la
-libpulse_simple_la_LDFLAGS = -version-info $(LIBPULSE_SIMPLE_VERSION_INFO)
+libpulse_simple_la_LDFLAGS = -version-info $(LIBPULSE_SIMPLE_VERSION_INFO) -Wl,-version-script=$(srcdir)/map-file
 
-libpulse_browse_la_SOURCES = pulse/browser.c pulse/browser.h pulsecore/avahi-wrap.c pulsecore/avahi-wrap.h
+libpulse_browse_la_SOURCES = pulse/browser.c pulse/browser.h pulsecore/avahi-wrap.c pulsecore/avahi-wrap.h pulsecore/core-util.c pulsecore/core-util.h pulsecore/core-error.c pulsecore/core-error.h  pulsecore/log.c pulsecore/log.h pulsecore/once.c pulsecore/once.h $(PA_THREAD_OBJS)
 libpulse_browse_la_CFLAGS = $(AM_CFLAGS) $(AVAHI_CFLAGS)
 libpulse_browse_la_LIBADD = $(AM_LIBADD) libpulse.la $(AVAHI_LIBS)
-libpulse_browse_la_LDFLAGS = -version-info $(LIBPULSE_BROWSE_VERSION_INFO)
+libpulse_browse_la_LDFLAGS = -version-info $(LIBPULSE_BROWSE_VERSION_INFO) -Wl,-version-script=$(srcdir)/map-file
 
 libpulse_mainloop_glib_la_SOURCES = pulse/glib-mainloop.h pulse/glib-mainloop.c
 libpulse_mainloop_glib_la_CFLAGS = $(AM_CFLAGS) $(GLIB20_CFLAGS)
 libpulse_mainloop_glib_la_LIBADD = $(AM_LIBADD) libpulse.la $(GLIB20_LIBS)
-libpulse_mainloop_glib_la_LDFLAGS = -version-info $(LIBPULSE_MAINLOOP_GLIB_VERSION_INFO)
+libpulse_mainloop_glib_la_LDFLAGS = -version-info $(LIBPULSE_MAINLOOP_GLIB_VERSION_INFO) -Wl,-version-script=$(srcdir)/map-file
 
 ###################################
 #         OSS emulation           #
@@ -1459,4 +1460,13 @@ update-speex:
 update-ffmpeg:
        wget -O pulsecore/ffmpeg/resample2.c http://svn.mplayerhq.hu/ffmpeg/trunk/libavcodec/resample2.c?view=co
 
+# Automatically generate linker version script. We use the same one for all public .sos
+update-map-file:
+       ( echo "PULSE_0 {" ; \
+         echo "global:" ; \
+         ctags -I PA_GCC_PURE,PA_GCC_CONST -f - --c-kinds=p $(pulseinclude_HEADERS) | awk '/^pa_/ { print $$1 ";" }' | sort ; \
+         echo "local:" ;  \
+         echo "*;" ; \
+         echo "};" ) > $(srcdir)/map-file
+
 .PHONY: utils/padsp

diff --git a/src/map-file b/src/map-file
new file mode 100644 (file)
index 0000000..427a3a7
--- /dev/null
+++ b/src/map-file
@@ -0,0 +1,220 @@
+PULSE_0 {
+global:
+pa_browser_new;
+pa_browser_new_full;
+pa_browser_ref;
+pa_browser_set_callback;
+pa_browser_set_error_callback;
+pa_browser_unref;
+pa_bytes_per_second;
+pa_bytes_snprint;
+pa_bytes_to_usec;
+pa_channel_map_equal;
+pa_channel_map_init;
+pa_channel_map_init_auto;
+pa_channel_map_init_mono;
+pa_channel_map_init_stereo;
+pa_channel_map_parse;
+pa_channel_map_snprint;
+pa_channel_map_valid;
+pa_channel_position_to_pretty_string;
+pa_channel_position_to_string;
+pa_context_add_autoload;
+pa_context_connect;
+pa_context_disconnect;
+pa_context_drain;
+pa_context_errno;
+pa_context_exit_daemon;
+pa_context_get_autoload_info_by_index;
+pa_context_get_autoload_info_by_name;
+pa_context_get_autoload_info_list;
+pa_context_get_client_info;
+pa_context_get_client_info_list;
+pa_context_get_module_info;
+pa_context_get_module_info_list;
+pa_context_get_protocol_version;
+pa_context_get_sample_info_by_index;
+pa_context_get_sample_info_by_name;
+pa_context_get_sample_info_list;
+pa_context_get_server;
+pa_context_get_server_info;
+pa_context_get_server_protocol_version;
+pa_context_get_sink_info_by_index;
+pa_context_get_sink_info_by_name;
+pa_context_get_sink_info_list;
+pa_context_get_sink_input_info;
+pa_context_get_sink_input_info_list;
+pa_context_get_source_info_by_index;
+pa_context_get_source_info_by_name;
+pa_context_get_source_info_list;
+pa_context_get_source_output_info;
+pa_context_get_source_output_info_list;
+pa_context_get_state;
+pa_context_is_local;
+pa_context_is_pending;
+pa_context_kill_client;
+pa_context_kill_sink_input;
+pa_context_kill_source_output;
+pa_context_load_module;
+pa_context_move_sink_input_by_index;
+pa_context_move_sink_input_by_name;
+pa_context_move_source_output_by_index;
+pa_context_move_source_output_by_name;
+pa_context_new;
+pa_context_play_sample;
+pa_context_ref;
+pa_context_remove_autoload_by_index;
+pa_context_remove_autoload_by_name;
+pa_context_remove_sample;
+pa_context_set_default_sink;
+pa_context_set_default_source;
+pa_context_set_name;
+pa_context_set_sink_input_mute;
+pa_context_set_sink_input_volume;
+pa_context_set_sink_mute_by_index;
+pa_context_set_sink_mute_by_name;
+pa_context_set_sink_volume_by_index;
+pa_context_set_sink_volume_by_name;
+pa_context_set_source_mute_by_index;
+pa_context_set_source_mute_by_name;
+pa_context_set_source_volume_by_index;
+pa_context_set_source_volume_by_name;
+pa_context_set_state_callback;
+pa_context_set_subscribe_callback;
+pa_context_stat;
+pa_context_subscribe;
+pa_context_suspend_sink_by_index;
+pa_context_suspend_sink_by_name;
+pa_context_suspend_source_by_index;
+pa_context_suspend_source_by_name;
+pa_context_unload_module;
+pa_context_unref;
+pa_cvolume_avg;
+pa_cvolume_channels_equal_to;
+pa_cvolume_equal;
+pa_cvolume_set;
+pa_cvolume_snprint;
+pa_cvolume_valid;
+pa_frame_size;
+pa_get_binary_name;
+pa_get_fqdn;
+pa_get_home_dir;
+pa_get_host_name;
+pa_get_library_version;
+pa_gettimeofday;
+pa_get_user_name;
+pa_glib_mainloop_free;
+pa_glib_mainloop_get_api;
+pa_glib_mainloop_new;
+pa_locale_to_utf8;
+pa_mainloop_api_once;
+pa_mainloop_dispatch;
+pa_mainloop_free;
+pa_mainloop_get_api;
+pa_mainloop_get_retval;
+pa_mainloop_iterate;
+pa_mainloop_new;
+pa_mainloop_poll;
+pa_mainloop_prepare;
+pa_mainloop_quit;
+pa_mainloop_run;
+pa_mainloop_set_poll_func;
+pa_mainloop_wakeup;
+pa_msleep;
+pa_operation_cancel;
+pa_operation_get_state;
+pa_operation_ref;
+pa_operation_unref;
+pa_parse_sample_format;
+pa_path_get_filename;
+pa_sample_format_to_string;
+pa_sample_size;
+pa_sample_spec_equal;
+pa_sample_spec_snprint;
+pa_sample_spec_valid;
+pa_signal_done;
+pa_signal_free;
+pa_signal_init;
+pa_signal_new;
+pa_signal_set_destroy;
+pa_simple_drain;
+pa_simple_flush;
+pa_simple_free;
+pa_simple_get_latency;
+pa_simple_new;
+pa_simple_read;
+pa_simple_write;
+pa_stream_connect_playback;
+pa_stream_connect_record;
+pa_stream_connect_upload;
+pa_stream_cork;
+pa_stream_disconnect;
+pa_stream_drain;
+pa_stream_drop;
+pa_stream_finish_upload;
+pa_stream_flush;
+pa_stream_get_buffer_attr;
+pa_stream_get_channel_map;
+pa_stream_get_context;
+pa_stream_get_index;
+pa_stream_get_latency;
+pa_stream_get_sample_spec;
+pa_stream_get_state;
+pa_stream_get_time;
+pa_stream_get_timing_info;
+pa_stream_new;
+pa_stream_peek;
+pa_stream_prebuf;
+pa_stream_readable_size;
+pa_stream_ref;
+pa_stream_set_latency_update_callback;
+pa_stream_set_name;
+pa_stream_set_overflow_callback;
+pa_stream_set_read_callback;
+pa_stream_set_state_callback;
+pa_stream_set_underflow_callback;
+pa_stream_set_write_callback;
+pa_stream_trigger;
+pa_stream_unref;
+pa_stream_update_timing_info;
+pa_stream_writable_size;
+pa_stream_write;
+pa_strerror;
+pa_sw_cvolume_multiply;
+pa_sw_volume_from_dB;
+pa_sw_volume_from_linear;
+pa_sw_volume_multiply;
+pa_sw_volume_to_dB;
+pa_sw_volume_to_linear;
+pa_threaded_mainloop_accept;
+pa_threaded_mainloop_free;
+pa_threaded_mainloop_get_api;
+pa_threaded_mainloop_get_retval;
+pa_threaded_mainloop_in_thread;
+pa_threaded_mainloop_lock;
+pa_threaded_mainloop_new;
+pa_threaded_mainloop_signal;
+pa_threaded_mainloop_start;
+pa_threaded_mainloop_stop;
+pa_threaded_mainloop_unlock;
+pa_threaded_mainloop_wait;
+pa_timeval_add;
+pa_timeval_age;
+pa_timeval_cmp;
+pa_timeval_diff;
+pa_timeval_load;
+pa_timeval_store;
+pa_usec_to_bytes;
+pa_utf8_filter;
+pa_utf8_to_locale;
+pa_utf8_valid;
+pa_xfree;
+pa_xmalloc;
+pa_xmalloc0;
+pa_xmemdup;
+pa_xrealloc;
+pa_xstrdup;
+pa_xstrndup;
+local:
+*;
+};