Author: mikej
Date: Mon Feb 16 12:17:01 2009
New Revision: 12061
Log:
API visibility support (GCC/SUNCC) (FSCORE-264)
Modified:
freeswitch/trunk/configure.in
freeswitch/trunk/libs/libteletone/configure.in
freeswitch/trunk/libs/libteletone/src/libteletone.h
freeswitch/trunk/libs/libteletone/src/libteletone_detect.c
freeswitch/trunk/libs/libteletone/src/libteletone_generate.c
freeswitch/trunk/src/include/switch_platform.h
Modified: freeswitch/trunk/configure.in
==============================================================================
--- freeswitch/trunk/configure.in (original)
+++ freeswitch/trunk/configure.in Mon Feb 16 12:17:01 2009
@@ -151,6 +151,76 @@
fi
fi
+#
+# gcc visibility cflag checks
+#
+AC_ARG_ENABLE([visibility],
+ [AS_HELP_STRING([--disable-visibility], [Disable or enable API visibility support (default: use if available)])],
+ [enable_visibility="${enableval}"],
+ [enable_visibility="detect"]
+)
+HAVE_VISIBILITY="no"
+
+if test "x${enable_visibility}" != "xno" ; then
+
+ case "${ax_cv_c_compiler_vendor}" in
+ gnu)
+ save_CFLAGS="${CFLAGS}"
+ CFLAGS="${CFLAGS} -fvisibility=hidden"
+ AC_MSG_CHECKING([whether the compiler supports -fvisibility=hidden])
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [int foo __attribute__ ((visibility("default")));],
+ [;]
+ )],
+
+ [AC_MSG_RESULT([yes])
+ APR_ADDTO([SWITCH_AM_CFLAGS], [-fvisibility=hidden -DSWITCH_API_VISIBILITY=1 -DHAVE_VISIBILITY=1])
+ APR_ADDTO([SWITCH_AM_CXXFLAGS], [-fvisibility=hidden -DSWITCH_API_VISIBILITY=1 -DHAVE_VISIBILITY=1])
+ HAVE_VISIBILITY="yes"],
+
+ [AC_MSG_RESULT([no])]
+ )
+ CFLAGS="${save_CFLAGS}"
+ ;;
+
+ sun)
+ save_CFLAGS="${CFLAGS}"
+ CFLAGS="${CFLAGS} -xldscope=hidden"
+ AC_MSG_CHECKING([whether the compiler supports -xldscope=hidden])
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [int foo __attribute__ ((visibility("default")));],
+ [;]
+ )],
+
+ [AC_MSG_RESULT([yes])
+ APR_ADDTO([SWITCH_AM_CFLAGS], [-xldscope=hidden -DSWITCH_API_VISIBILITY=1 -DHAVE_VISIBILITY=1])
+ APR_ADDTO([SWITCH_AM_CXXFLAGS], [-xldscope=hidden -DSWITCH_API_VISIBILITY=1 -DHAVE_VISIBILITY=1])
+ HAVE_VISIBILITY="yes"],
+
+ [AC_MSG_RESULT([no])]
+ )
+ CFLAGS="${save_CFLAGS}"
+ ;;
+
+ *)
+ if test "x${enable_visibility}" = "xyes" ; then
+ AC_MSG_ERROR([Non-GNU / SUN compilers are currently unsupported])
+ else
+ AC_MSG_WARN([Non-GNU / SUN compilers are currently unsupported])
+ fi
+ ;;
+ esac
+
+ #
+ # visibility explicitly requested but not supported by this compiler => error
+ #
+ if test "x${enable_visibility}" = "xyes" -a "x${HAVE_VISIBILITY}" = "xno" ; then
+ AC_MSG_ERROR([API visibility not supported by this compiler])
+ fi
+fi
+
# Enable debugging (default: on)
# (rename option if the default is changed)
AC_ARG_ENABLE(debug,
Modified: freeswitch/trunk/libs/libteletone/configure.in
==============================================================================
--- freeswitch/trunk/libs/libteletone/configure.in (original)
+++ freeswitch/trunk/libs/libteletone/configure.in Mon Feb 16 12:17:01 2009
@@ -7,11 +7,16 @@
AM_INIT_AUTOMAKE(libteletone,0.1)
AC_CONFIG_SRCDIR([src])
+# disable checks
+m4_defun([_LT_AC_LANG_CXX_CONFIG], [:])
+m4_defun([_LT_AC_LANG_F77_CONFIG], [:])
+
# Checks for programs.
AC_PROG_CC
AC_PROG_MAKE_SET
AC_PROG_LIBTOOL
AC_PROG_INSTALL
+
# Optimize
AC_ARG_ENABLE(optimization,
[AC_HELP_STRING([--enable-optimization],[Set if you want us to add max optimising compiler flags])],[enable_optimizer="$enableval"],[enable_optimizer="no"])
@@ -64,6 +69,77 @@
new_AM_LDFLAGS=""
;;
esac
+
+#
+# gcc visibility cflag checks
+#
+AC_ARG_ENABLE([visibility],
+ [AS_HELP_STRING([--disable-visibility], [Disable or enable API visibility support (default: use if available)])],
+ [enable_visibility="${enableval}"],
+ [enable_visibility="detect"]
+)
+HAVE_VISIBILITY="no"
+
+if test "x${enable_visibility}" != "xno" ; then
+
+ case "${ax_cv_c_compiler_vendor}" in
+ gnu)
+ save_CFLAGS="${CFLAGS}"
+ CFLAGS="${CFLAGS} -fvisibility=hidden"
+ AC_MSG_CHECKING([whether the compiler supports -fvisibility=hidden])
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [int foo __attribute__ ((visibility("default")));],
+ [;]
+ )],
+
+ [AC_MSG_RESULT([yes])
+ new_AM_CFLAGS="${new_AM_CFLAGS} -fvisibility=hidden"
+ AC_DEFINE([HAVE_VISIBILITY], [1], [GCC visibility support available])
+ HAVE_VISIBILITY="yes"],
+
+ [AC_MSG_RESULT([no])]
+ )
+ CFLAGS="${save_CFLAGS}"
+ ;;
+
+ sun)
+ save_CFLAGS="${CFLAGS}"
+ CFLAGS="${CFLAGS} -xldscope=hidden"
+ AC_MSG_CHECKING([whether the compiler supports -xldscope=hidden])
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM(
+ [int foo __attribute__ ((visibility("default")));],
+ [;]
+ )],
+
+ [AC_MSG_RESULT([yes])
+ new_AM_CFLAGS="${new_AM_CFLAGS} -xldscope=hidden"
+ AC_DEFINE([HAVE_VISIBILITY], [1], [SUNCC visibility support available])
+ HAVE_VISIBILITY="yes"],
+
+ [AC_MSG_RESULT([no])]
+ )
+ CFLAGS="${save_CFLAGS}"
+ ;;
+
+ *)
+ if test "x${enable_visibility}" = "xyes" ; then
+ AC_MSG_ERROR([Non-GNU / SUN compilers are currently unsupported])
+ else
+ AC_MSG_WARN([Non-GNU / SUN compilers are currently unsupported])
+ fi
+ ;;
+ esac
+
+ #
+ # visibility explicitly requested but not supported by this compiler => error
+ #
+ if test "x${enable_visibility}" = "xyes" -a "x${HAVE_VISIBILITY}" = "xno" ; then
+ AC_MSG_ERROR([API visibility not supported by this compiler])
+ fi
+fi
+
AC_SUBST(new_AM_CFLAGS)
AC_SUBST(new_AM_LDFLAGS)
Modified: freeswitch/trunk/libs/libteletone/src/libteletone.h
==============================================================================
--- freeswitch/trunk/libs/libteletone/src/libteletone.h (original)
+++ freeswitch/trunk/libs/libteletone/src/libteletone.h Mon Feb 16 12:17:01 2009
@@ -110,6 +110,12 @@
#define teletone_assert(expr) assert(expr)
#endif
+#if (defined(__GNUC__) || defined(__SUNCC__)) && defined(HAVE_VISIBILITY)
+#define TELETONE_API __attribute__((visibility("default")))
+#else
+#define TELETONE_API
+#endif
+
#include <libteletone_generate.h>
#include <libteletone_detect.h>
Modified: freeswitch/trunk/libs/libteletone/src/libteletone_detect.c
==============================================================================
--- freeswitch/trunk/libs/libteletone/src/libteletone_detect.c (original)
+++ freeswitch/trunk/libs/libteletone/src/libteletone_detect.c Mon Feb 16 12:17:01 2009
@@ -116,7 +116,7 @@
goertzel_state->fac = tdesc->fac;
}
-void teletone_goertzel_update(teletone_goertzel_state_t *goertzel_state,
+TELETONE_API void teletone_goertzel_update(teletone_goertzel_state_t *goertzel_state,
int16_t sample_buffer[],
int samples)
{
@@ -135,7 +135,7 @@
#define teletone_goertzel_result(gs) (double)(((gs)->v3 * (gs)->v3 + (gs)->v2 * (gs)->v2 - (gs)->v2 * (gs)->v3 * (gs)->fac))
-void teletone_dtmf_detect_init (teletone_dtmf_detect_state_t *dtmf_detect_state, int sample_rate)
+TELETONE_API void teletone_dtmf_detect_init (teletone_dtmf_detect_state_t *dtmf_detect_state, int sample_rate)
{
int i;
float theta;
@@ -169,7 +169,7 @@
dtmf_detect_state->mhit = 0;
}
-void teletone_multi_tone_init(teletone_multi_tone_t *mt, teletone_tone_map_t *map)
+TELETONE_API void teletone_multi_tone_init(teletone_multi_tone_t *mt, teletone_tone_map_t *map)
{
float theta = 0;
int x = 0;
@@ -209,7 +209,7 @@
}
-int teletone_multi_tone_detect (teletone_multi_tone_t *mt,
+TELETONE_API int teletone_multi_tone_detect (teletone_multi_tone_t *mt,
int16_t sample_buffer[],
int samples)
{
@@ -299,7 +299,7 @@
}
-int teletone_dtmf_detect (teletone_dtmf_detect_state_t *dtmf_detect_state,
+TELETONE_API int teletone_dtmf_detect (teletone_dtmf_detect_state_t *dtmf_detect_state,
int16_t sample_buffer[],
int samples)
{
@@ -430,7 +430,7 @@
}
-int teletone_dtmf_get (teletone_dtmf_detect_state_t *dtmf_detect_state,
+TELETONE_API int teletone_dtmf_get (teletone_dtmf_detect_state_t *dtmf_detect_state,
char *buf,
int max)
{
Modified: freeswitch/trunk/libs/libteletone/src/libteletone_generate.c
==============================================================================
--- freeswitch/trunk/libs/libteletone/src/libteletone_generate.c (original)
+++ freeswitch/trunk/libs/libteletone/src/libteletone_generate.c Mon Feb 16 12:17:01 2009
@@ -99,7 +99,7 @@
};
-int teletone_set_tone(teletone_generation_session_t *ts, int index, ...)
+TELETONE_API int teletone_set_tone(teletone_generation_session_t *ts, int index, ...)
{
va_list ap;
int i = 0;
@@ -115,7 +115,7 @@
}
-int teletone_set_map(teletone_tone_map_t *map, ...)
+TELETONE_API int teletone_set_map(teletone_tone_map_t *map, ...)
{
va_list ap;
int i = 0;
@@ -131,7 +131,7 @@
}
-int teletone_init_session(teletone_generation_session_t *ts, int buflen, tone_handler handler, void *user_data)
+TELETONE_API int teletone_init_session(teletone_generation_session_t *ts, int buflen, tone_handler handler, void *user_data)
{
memset(ts, 0, sizeof(*ts));
ts->rate = 8000;
@@ -174,7 +174,7 @@
return 0;
}
-int teletone_destroy_session(teletone_generation_session_t *ts)
+TELETONE_API int teletone_destroy_session(teletone_generation_session_t *ts)
{
if (ts->buffer) {
free(ts->buffer);
@@ -203,7 +203,7 @@
return 0;
}
-int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *map)
+TELETONE_API int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *map)
{
/*teletone_process_t period = (1.0 / ts->rate) / ts->channels;*/
int i, c;
@@ -318,7 +318,7 @@
return (char *) memcpy (new, s, len);
}
-int teletone_run(teletone_generation_session_t *ts, const char *cmd)
+TELETONE_API int teletone_run(teletone_generation_session_t *ts, const char *cmd)
{
char *data = NULL, *cur = NULL, *end = NULL;
int var = 0, LOOPING = 0;
Modified: freeswitch/trunk/src/include/switch_platform.h
==============================================================================
--- freeswitch/trunk/src/include/switch_platform.h (original)
+++ freeswitch/trunk/src/include/switch_platform.h Mon Feb 16 12:17:01 2009
@@ -164,11 +164,19 @@
#define SWITCH_THREAD_FUNC __stdcall
#else //not win32
#define O_BINARY 0
-#define SWITCH_DECLARE(type) type
-#define SWITCH_DECLARE_NONSTD(type) type
-#define SWITCH_MOD_DECLARE(type) type
+#if (defined(__GNUC__) || defined(__SUNCC__)) && defined(SWITCH_API_VISIBILITY)
+#define SWITCH_DECLARE(type) __attribute__((visibility("default"))) type
+#define SWITCH_DECLARE_NONSTD(type) __attribute__((visibility("default"))) type
+#define SWITCH_DECLARE_DATA __attribute__((visibility("default")))
+#define SWITCH_MOD_DECLARE(type) __attribute__((visibility("default"))) type
+#define SWITCH_MOD_DECLARE_DATA __attribute__((visibility("default")))
+#else
+#define SWITCH_DECLARE(type) type
+#define SWITCH_DECLARE_NONSTD(type) type
#define SWITCH_DECLARE_DATA
+#define SWITCH_MOD_DECLARE(type) type
#define SWITCH_MOD_DECLARE_DATA
+#endif
#define SWITCH_THREAD_FUNC
#endif
#define SWITCH_DECLARE_CONSTRUCTOR SWITCH_DECLARE_DATA