src/socket_wrapper.c: always go through swrap_bind_symbol_all() protected by pthread_...

[socket_wrapper.git] / ConfigureChecks.cmake

diff --git a/ConfigureChecks.cmake b/ConfigureChecks.cmake
index cb2ea9282f84eee2334a74b0e01f3e7c4b122b2f..3c8e61573a7a392738e89fcf4e427b38643d8615 100644 (file)
--- a/ConfigureChecks.cmake
+++ b/ConfigureChecks.cmake
@@ -7,12 +7,8 @@ include(CheckStructHasMember)
 include(CheckPrototypeDefinition)
 include(TestBigEndian)
 
-set(PACKAGE ${APPLICATION_NAME})
-set(VERSION ${APPLICATION_VERSION})
-set(DATADIR ${DATA_INSTALL_DIR})
-set(LIBDIR ${LIB_INSTALL_DIR})
-set(PLUGINDIR "${PLUGIN_INSTALL_DIR}-${LIBRARY_SOVERSION}")
-set(SYSCONFDIR ${SYSCONF_INSTALL_DIR})
+set(PACKAGE ${PROJECT_NAME})
+set(VERSION ${PROJECT_VERSION})
 
 set(BINARYDIR ${CMAKE_BINARY_DIR})
 set(SOURCEDIR ${CMAKE_SOURCE_DIR})
@@ -42,11 +38,12 @@ if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
 "void __attribute__((visibility(\"default\"))) test() {}
 int main(void){ return 0; }
 " WITH_VISIBILITY_HIDDEN)
-        set(CMAKE_REQUIRED_FLAGS "")
+        unset(CMAKE_REQUIRED_FLAGS)
     endif (NOT GNUCC_VERSION EQUAL 34)
 endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
 
 # HEADERS
+check_include_file(netinet/tcp_fsm.h HAVE_NETINET_TCP_FSM_H)
 check_include_file(sys/filio.h HAVE_SYS_FILIO_H)
 check_include_file(sys/signalfd.h HAVE_SYS_SIGNALFD_H)
 check_include_file(sys/eventfd.h HAVE_SYS_EVENTFD_H)
@@ -54,6 +51,13 @@ check_include_file(sys/timerfd.h HAVE_SYS_TIMERFD_H)
 check_include_file(gnu/lib-names.h HAVE_GNU_LIB_NAMES_H)
 check_include_file(rpc/rpc.h HAVE_RPC_RPC_H)
 
+# SYMBOLS
+set(CMAKE_REQUIRED_FLAGS -D_GNU_SOURCE)
+check_symbol_exists(program_invocation_short_name
+                    "errno.h"
+                    HAVE_PROGRAM_INVOCATION_SHORT_NAME)
+unset(CMAKE_REQUIRED_FLAGS)
+
 # FUNCTIONS
 check_function_exists(strncpy HAVE_STRNCPY)
 check_function_exists(vsnprintf HAVE_VSNPRINTF)
@@ -65,35 +69,45 @@ check_function_exists(bindresvport HAVE_BINDRESVPORT)
 check_function_exists(accept4 HAVE_ACCEPT4)
 check_function_exists(open64 HAVE_OPEN64)
 check_function_exists(fopen64 HAVE_FOPEN64)
-
+check_function_exists(getprogname HAVE_GETPROGNAME)
+check_function_exists(getexecname HAVE_GETEXECNAME)
 check_function_exists(pledge HAVE_PLEDGE)
-
+check_function_exists(_socket HAVE__SOCKET)
+check_function_exists(_close HAVE__CLOSE)
 
 if (UNIX)
+    find_library(DLFCN_LIBRARY dl)
+    if (DLFCN_LIBRARY)
+        list(APPEND _REQUIRED_LIBRARIES ${DLFCN_LIBRARY})
+    else()
+        check_function_exists(dlopen HAVE_DLOPEN)
+        if (NOT HAVE_DLOPEN)
+            message(FATAL_ERROR "FATAL: No dlopen() function detected")
+        endif()
+    endif()
+
     if (NOT LINUX)
         # libsocket (Solaris)
         check_library_exists(socket getaddrinfo "" HAVE_LIBSOCKET)
         if (HAVE_LIBSOCKET)
-          set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} socket)
+            list(APPEND _REQUIRED_LIBRARIES socket)
         endif (HAVE_LIBSOCKET)
 
         # libnsl/inet_pton (Solaris)
         check_library_exists(nsl inet_pton "" HAVE_LIBNSL)
         if (HAVE_LIBNSL)
-            set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} nsl)
+            list(APPEND _REQUIRED_LIBRARIES nsl)
         endif (HAVE_LIBNSL)
     endif (NOT LINUX)
 
     check_function_exists(getaddrinfo HAVE_GETADDRINFO)
 endif (UNIX)
 
-set(SWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "socket_wrapper required system libraries")
-
 # STRUCTS
 check_struct_has_member("struct in_pktinfo" ipi_addr "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_IN_PKTINFO)
 set(CMAKE_REQUIRED_FLAGS -D_GNU_SOURCE)
 check_struct_has_member("struct in6_pktinfo" ipi6_addr "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_IN6_PKTINFO)
-set(CMAKE_REQUIRED_FLAGS)
+unset(CMAKE_REQUIRED_FLAGS)
 
 # STRUCT MEMBERS
 check_struct_has_member("struct sockaddr" sa_len "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_SOCKADDR_SA_LEN)
@@ -173,6 +187,11 @@ int main(void) {
     return 0;
 }" HAVE_SOCKADDR_STORAGE)
 
+###########################################################
+# For detecting attributes we need to treat warnings as
+# errors
+set(CMAKE_REQUIRED_FLAGS "-Werror")
+
 check_c_source_compiles("
 void test_constructor_attribute(void) __attribute__ ((constructor));
 
@@ -198,24 +217,41 @@ int main(void) {
 }" HAVE_DESTRUCTOR_ATTRIBUTE)
 
 check_c_source_compiles("
-#define FALL_THROUGH __attribute__((fallthrough))
+#pragma init (test_constructor)
+void test_constructor(void);
+
+void test_constructor(void)
+{
+    return;
+}
+
+int main(void) {
+    return 0;
+}" HAVE_PRAGMA_INIT)
+
+check_c_source_compiles("
+#pragma fini (test_destructor)
+void test_destructor(void);
 
-enum direction_e {
-    UP = 0,
-    DOWN,
-};
+void test_destructor(void)
+{
+    return;
+}
 
 int main(void) {
-    enum direction_e key = UP;
-    int i = 10;
-    int j = 0;
+    return 0;
+}" HAVE_PRAGMA_FINI)
 
-    switch (key) {
-    case UP:
-        i = 5;
+check_c_source_compiles("
+#define FALL_THROUGH __attribute__((fallthrough))
+
+int main(void) {
+    int i = 2;
+
+    switch (i) {
+    case 0:
         FALL_THROUGH;
-    case DOWN:
-        j = i * 2;
+    case 1:
         break;
     default:
         break;
@@ -238,8 +274,6 @@ int main(void) {
     return 0;
 }" HAVE_FUNCTION_ATTRIBUTE_FORMAT)
 
-# If this produces a warning treat it as error!
-set(CMAKE_REQUIRED_FLAGS "-Werror")
 check_c_source_compiles("
 void test_address_sanitizer_attribute(void) __attribute__((no_sanitize_address));
 
@@ -251,13 +285,10 @@ void test_address_sanitizer_attribute(void)
 int main(void) {
     return 0;
 }" HAVE_ADDRESS_SANITIZER_ATTRIBUTE)
-set(CMAKE_REQUIRED_FLAGS)
 
-check_library_exists(dl dlopen "" HAVE_LIBDL)
-if (HAVE_LIBDL)
-    find_library(DLFCN_LIBRARY dl)
-    set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${DLFCN_LIBRARY})
-endif (HAVE_LIBDL)
+# Stop treating wanrings as errors
+unset(CMAKE_REQUIRED_FLAGS)
+###########################################################
 
 if (OSX)
     set(HAVE_APPLE 1)
@@ -270,4 +301,4 @@ endif (NOT WIN32)
 
 check_type_size(pid_t SIZEOF_PID_T)
 
-set(SWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "swrap required system libraries")
+set(SWRAP_REQUIRED_LIBRARIES ${_REQUIRED_LIBRARIES} CACHE INTERNAL "socket_wrapper required system libraries")