udev: fix gcc warnings showing up after adding $(AM_CFLAGS)

.gitignore

@@ -119,3 +119,5 @@ libtool
 /udevadm
 /udevd
 /v4l_id
+/test-libudev
+/test-udev

Makefile.am

@@ -84,6 +84,7 @@ INSTALL_DATA_HOOKS =
 DISTCHECK_HOOKS =
 DISTCLEAN_LOCAL_HOOKS =
 pkginclude_HEADERS =
+noinst_LTLIBRARIES =
 lib_LTLIBRARIES =
 include_HEADERS =
 pkgconfiglib_DATA =
@@ -549,12 +550,8 @@ EXTRA_DIST += \
 	$(MANPAGES_ALIAS)
 
 # ------------------------------------------------------------------------------
-noinst_LTLIBRARIES = \
+noinst_LTLIBRARIES += \
-	libsystemd-basic.la \
+	libsystemd-basic.la
-	libsystemd-capability.la \
-	libsystemd-audit.la \
-	libsystemd-acl.la \
-	libsystemd-core.la
 
 libsystemd_basic_la_SOURCES = \
 	src/shared/util.c \
@@ -591,6 +588,9 @@ libsystemd_basic_la_LIBADD = \
 	$(SELINUX_LIBS)
 
 # ------------------------------------------------------------------------------
+noinst_LTLIBRARIES += \
+	libsystemd-capability.la
+
 libsystemd_capability_la_SOURCES = \
 	src/shared/capability.c \
 	src/shared/capability.h
@@ -603,6 +603,9 @@ libsystemd_capability_la_LIBADD = \
 	$(CAP_LIBS)
 
 # ------------------------------------------------------------------------------
+noinst_LTLIBRARIES += \
+	libsystemd-audit.la
+
 libsystemd_audit_la_SOURCES = \
 	src/shared/audit.c \
 	src/shared/audit.h
@@ -611,6 +614,9 @@ libsystemd_audit_la_LIBADD = \
 	libsystemd-capability.la
 
 # ------------------------------------------------------------------------------
+noinst_LTLIBRARIES += \
+	libsystemd-acl.la
+
 libsystemd_acl_la_SOURCES = \
 	src/shared/acl.c \
 	src/shared/acl.h
@@ -623,6 +629,9 @@ libsystemd_acl_la_LIBADD = \
 	$(ACL_LIBS)
 
 # ------------------------------------------------------------------------------
+noinst_LTLIBRARIES += \
+	libsystemd-core.la
+
 libsystemd_core_la_SOURCES = \
 	src/unit.c \
 	src/unit.h \
@@ -1208,9 +1217,6 @@ include_HEADERS += \
 lib_LTLIBRARIES += \
 	libudev.la
 
-noinst_LTLIBRARIES += \
-	libudev-private.la
-
 libudev_la_SOURCES =\
 	src/udev/libudev-private.h \
 	src/udev/libudev.c \
@@ -1221,24 +1227,14 @@ libudev_la_SOURCES =\
 	src/udev/libudev-monitor.c \
 	src/udev/libudev-queue.c
 
+libudev_la_CFLAGS = \
+	$(AM_CFLAGS) \
+	-fvisibility=hidden
+
 libudev_la_LDFLAGS = \
 	$(AM_LDFLAGS) \
 	-version-info $(LIBUDEV_CURRENT):$(LIBUDEV_REVISION):$(LIBUDEV_AGE)
 
-libudev_private_la_SOURCES =\
-	$(libudev_la_SOURCES) \
-	src/udev/libudev-util-private.c \
-	src/udev/libudev-device-private.c \
-	src/udev/libudev-queue-private.c
-
-if HAVE_SELINUX
-libudev_private_la_SOURCES +=\
-	src/udev/libudev-selinux-private.c
-endif
-
-libudev_private_la_LIBADD = \
-	$(SELINUX_LIBS)
-
 pkgconfiglib_DATA += \
 	src/udev/libudev.pc
 
@@ -1264,6 +1260,28 @@ libudev-uninstall-move-hook:
 INSTALL_EXEC_HOOKS += libudev-install-move-hook
 UNINSTALL_EXEC_HOOKS += libudev-uninstall-move-hook
 
+# ------------------------------------------------------------------------------
+noinst_LTLIBRARIES += \
+	libudev-private.la
+
+libudev_private_la_SOURCES =\
+	$(libudev_la_SOURCES) \
+	src/udev/libudev-util-private.c \
+	src/udev/libudev-device-private.c \
+	src/udev/libudev-queue-private.c
+
+libudev_private_la_CFLAGS = \
+	$(AM_CFLAGS) \
+	-fvisibility=default
+
+if HAVE_SELINUX
+libudev_private_la_SOURCES +=\
+	src/udev/libudev-selinux-private.c
+
+libudev_private_la_LIBADD = \
+	$(SELINUX_LIBS)
+endif
+
 # ------------------------------------------------------------------------------
 udev-confdirs:
 	-mkdir -p $(DESTDIR)$(sysconfdir)/udev/rules.d
@@ -1328,7 +1346,10 @@ bin_PROGRAMS += \
 udevlibexec_PROGRAMS = \
 	udevd
 
-udev_common_sources = \
+noinst_LTLIBRARIES += \
+	libudev-core.la
+
+libudev_core_la_SOURCES = \
 	src/udev/udev.h \
 	src/udev/udev-event.c \
 	src/udev/udev-watch.c \
@@ -1342,51 +1363,43 @@ udev_common_sources = \
 	src/udev/udev-builtin-input_id.c \
 	src/udev/udev-builtin-kmod.c \
 	src/udev/udev-builtin-path_id.c \
-	src/udev/udev-builtin-usb_id.c \
+	src/udev/udev-builtin-usb_id.c
-	src/systemd/sd-daemon.h \
-	src/sd-daemon.c
 
-udev_common_CFLAGS = \
+libudev_core_la_CFLAGS = \
 	$(AM_CFLAGS) \
 	$(BLKID_CFLAGS) \
 	$(KMOD_CFLAGS)
 
-udev_common_LDADD = \
+libudev_core_la_LIBADD = \
 	libudev-private.la \
+	libsystemd-daemon.la \
 	$(BLKID_LIBS) \
 	$(KMOD_LIBS)
 
-udev_common_CPPFLAGS = \
+libudev_core_la_CPPFLAGS = \
 	$(AM_CPPFLAGS) \
 	-DFIRMWARE_PATH="$(FIRMWARE_PATH)" \
 	-DUSB_DATABASE=\"$(USB_DATABASE)\" -DPCI_DATABASE=\"$(PCI_DATABASE)\"
 
 if HAVE_ACL
-udev_common_sources += \
+libudev_core_la_SOURCES += \
 	src/udev/udev-builtin-uaccess.c \
 	src/login/logind-acl.c
 
-udev_common_LDADD += \
+libudev_core_la_LIBADD += \
 	libsystemd-login.la \
 	libsystemd-acl.la
 endif
 
 udevd_SOURCES = \
-	$(udev_common_sources) \
 	src/udev/udevd.c
 
-udevd_CFLAGS = \
-	$(udev_common_CFLAGS)
-
 udevd_LDADD = \
-	$(udev_common_LDADD) \
+	libudev-core.la \
-	libsystemd-basic.la
+	libsystemd-basic.la \
-
+	libsystemd-daemon.la
-udevd_CPPFLAGS = \
-	$(udev_common_CPPFLAGS)
 
 udevadm_SOURCES = \
-	$(udev_common_sources) \
 	src/udev/udevadm.c \
 	src/udev/udevadm-info.c \
 	src/udev/udevadm-control.c \
@@ -1396,15 +1409,11 @@ udevadm_SOURCES = \
 	src/udev/udevadm-test.c \
 	src/udev/udevadm-test-builtin.c
 
-udevadm_CFLAGS = \
-	$(udev_common_CFLAGS)
-
 udevadm_LDADD = \
-	$(udev_common_LDADD) \
+	libudev-core.la \
-	libsystemd-basic.la
+	libudev-private.la \
-
+	libsystemd-basic.la \
-udevadm_CPPFLAGS = \
+	libsystemd-daemon.la
-	$(udev_common_CPPFLAGS)
 
 # ------------------------------------------------------------------------------
 TESTS = \
@@ -1422,19 +1431,13 @@ test_libudev_LDADD = \
 	libudev.la
 
 test_udev_SOURCES = \
-	$(udev_common_sources) \
 	src/udev/test-udev.c
 
-test_udev_CFLAGS = \
-	$(udev_common_CFLAGS)
-
 test_udev_LDADD = \
-	$(udev_common_LDADD) \
+	libudev-core.la \
+	libudev-private.la \
 	libsystemd-basic.la
 
-test_udev_CPPFLAGS = \
-	$(udev_common_CPPFLAGS)
-
 test_udev_DEPENDENCIES = \
 	src/udev/test/sys
 
@@ -1467,7 +1470,7 @@ cdrom_id_SOURCES = \
 	src/udev/cdrom_id/cdrom_id.c
 
 cdrom_id_LDADD = \
-	libudev-private.la \
+	libudev.la \
 	libsystemd-basic.la
 
 udevlibexec_PROGRAMS += \
@@ -1508,7 +1511,7 @@ v4l_id_SOURCES = \
 	src/udev/v4l_id/v4l_id.c
 
 v4l_id_LDADD = \
-	libudev-private.la
+	libudev.la
 
 udevlibexec_PROGRAMS += \
 	v4l_id
@@ -1521,7 +1524,7 @@ accelerometer_SOURCES = \
 	src/udev/accelerometer/accelerometer.c
 
 accelerometer_LDADD = \
-	libudev-private.la -lm \
+	libudev.la -lm \
 	libsystemd-basic.la
 
 udevlibexec_PROGRAMS += \

src/udev/udev-builtin-blkid.c

@@ -115,7 +115,6 @@ static int probe_superblocks(blkid_probe pr)
 
 static int builtin_blkid(struct udev_device *dev, int argc, char *argv[], bool test)
 {
-        struct udev *udev = udev_device_get_udev(dev);
         int64_t offset = 0;
         bool noraid = false;
         int fd = -1;

src/udev/udev-builtin-input_id.c

@@ -38,6 +38,8 @@
 #define LONG(x) ((x)/BITS_PER_LONG)
 #define test_bit(bit, array)    ((array[LONG(bit)] >> OFF(bit)) & 1)
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wformat-nonliteral"
 /*
  * Read a capability attribute and return bitmask.
  * @param dev udev_device
@@ -49,7 +51,6 @@ static void get_cap_mask(struct udev_device *dev,
                          unsigned long *bitmask, size_t bitmask_size,
                          bool test)
 {
-        struct udev *udev = udev_device_get_udev(dev);
         char text[4096];
         unsigned i;
         char* word;
@@ -87,6 +88,7 @@ static void get_cap_mask(struct udev_device *dev,
                         log_debug(text, i * BITS_PER_LONG, bitmask[i]);
         }
 }
+#pragma GCC diagnostic pop
 
 /* pointer devices */
 static void test_pointers (struct udev_device *dev,
@@ -143,7 +145,6 @@ static void test_key (struct udev_device *dev,
                       const unsigned long* bitmask_key,
                       bool test)
 {
-        struct udev *udev = udev_device_get_udev(dev);
         unsigned i;
         unsigned long found;
         unsigned long mask;

src/udev/udev-builtin-usb_id.c

@@ -33,7 +33,7 @@
 
 static void set_usb_iftype(char *to, int if_class_num, size_t len)
 {
-        char *type = "generic";
+        const char *type = "generic";
 
         switch (if_class_num) {
         case 1:
@@ -86,7 +86,7 @@ static int set_usb_mass_storage_ifsubtype(char *to, const char *from, size_t len
 {
         int type_num = 0;
         char *eptr;
-        char *type = "generic";
+        const char *type = "generic";
 
         type_num = strtoul(from, &eptr, 0);
         if (eptr != from) {
@@ -119,7 +119,7 @@ static void set_scsi_type(char *to, const char *from, size_t len)
 {
         int type_num;
         char *eptr;
-        char *type = "generic";
+        const char *type = "generic";
 
         type_num = strtoul(from, &eptr, 0);
         if (eptr != from) {
@@ -256,7 +256,6 @@ static int builtin_usb_id(struct udev_device *dev, int argc, char *argv[], bool
         const char *driver = NULL;
         char serial[256];
 
-        struct udev *udev = udev_device_get_udev(dev);
         struct udev_device *dev_interface = NULL;
         struct udev_device *dev_usb = NULL;
         const char *if_class, *if_subclass;

src/udev/udev-ctrl.c

@@ -337,7 +337,6 @@ int udev_ctrl_send_exit(struct udev_ctrl *uctrl, int timeout)
 
 struct udev_ctrl_msg *udev_ctrl_receive_msg(struct udev_ctrl_connection *conn)
 {
-        struct udev *udev = conn->uctrl->udev;
         struct udev_ctrl_msg *uctrl_msg;
         ssize_t size;
         struct msghdr smsg;

src/udev/udev-event.c

@@ -86,8 +86,8 @@ size_t udev_event_apply_format(struct udev_event *event, const char *src, char *
                 SUBST_SYS,
         };
         static const struct subst_map {
-                char *name;
+                const char *name;
-                char fmt;
+                const char fmt;
                 enum subst_type type;
         } map[] = {
                 { .name = "devnode",        .fmt = 'N',        .type = SUBST_DEVNODE },
@@ -386,7 +386,6 @@ static int spawn_exec(struct udev_event *event,
                       const char *cmd, char *const argv[], char **envp, const sigset_t *sigmask,
                       int fd_stdout, int fd_stderr)
 {
-        struct udev *udev = event->udev;
         int err;
         int fd;
 
@@ -433,7 +432,6 @@ static void spawn_read(struct udev_event *event,
                       int fd_stdout, int fd_stderr,
                       char *result, size_t ressize)
 {
-        struct udev *udev = event->udev;
         size_t respos = 0;
         int fd_ep = -1;
         struct epoll_event ep_outpipe, ep_errpipe;
@@ -553,7 +551,6 @@ out:
 
 static int spawn_wait(struct udev_event *event, const char *cmd, pid_t pid)
 {
-        struct udev *udev = event->udev;
         struct pollfd pfd[1];
         int err = 0;
 
@@ -939,7 +936,6 @@ int udev_event_execute_rules(struct udev_event *event, struct udev_rules *rules,
                 udev_device_unref(event->dev_db);
                 event->dev_db = NULL;
         }
-out:
         return err;
 }
 

src/udev/udev-node.c

@@ -240,7 +240,6 @@ static void link_update(struct udev_device *dev, const char *slink, bool add)
 
 void udev_node_update_old_links(struct udev_device *dev, struct udev_device *dev_old)
 {
-        struct udev *udev = udev_device_get_udev(dev);
         struct udev_list_entry *list_entry;
 
         /* update possible left-over symlinks */
@@ -322,7 +321,6 @@ void udev_node_add(struct udev_device *dev, mode_t mode, uid_t uid, gid_t gid)
         struct udev *udev = udev_device_get_udev(dev);
         char filename[UTIL_PATH_SIZE];
         struct udev_list_entry *list_entry;
-        int err = 0;
 
         log_debug("handling device node '%s', devnum=%s, mode=%#o, uid=%d, gid=%d\n",
                   udev_device_get_devnode(dev), udev_device_get_id_filename(dev), mode, uid, gid);
@@ -351,9 +349,6 @@ void udev_node_remove(struct udev_device *dev)
 {
         struct udev *udev = udev_device_get_udev(dev);
         struct udev_list_entry *list_entry;
-        const char *devnode;
-        struct stat stats;
-        struct udev_device *dev_check;
         char filename[UTIL_PATH_SIZE];
 
         /* remove/update symlinks, remove symlinks from name index */

src/udev/udev-rules.c

@@ -781,7 +781,6 @@ static int import_program_into_properties(struct udev_event *event, const char *
 
 static int import_parent_into_properties(struct udev_device *dev, const char *filter)
 {
-        struct udev *udev = udev_device_get_udev(dev);
         struct udev_device *dev_parent;
         struct udev_list_entry *list_entry;
 
@@ -969,7 +968,7 @@ static int get_key(struct udev *udev, char **line, char **key, enum operation_ty
 }
 
 /* extract possible KEY{attr} */
-static char *get_key_attribute(struct udev *udev, char *str)
+static const char *get_key_attribute(struct udev *udev, char *str)
 {
         char *pos;
         char *attr;
@@ -1178,7 +1177,7 @@ static int add_rule(struct udev_rules *rules, char *line,
                     const char *filename, unsigned int filename_off, unsigned int lineno)
 {
         char *linepos;
-        char *attr;
+        const char *attr;
         struct rule_tmp rule_tmp;
 
         memset(&rule_tmp, 0x00, sizeof(struct rule_tmp));

src/udev/udevadm-info.c

@@ -52,7 +52,6 @@ static bool skip_attribute(const char *name)
 
 static void print_all_attributes(struct udev_device *device, const char *key)
 {
-        struct udev *udev = udev_device_get_udev(device);
         struct udev_list_entry *sysattr;
 
         udev_list_entry_foreach(sysattr, udev_device_get_sysattr_list_entry(device)) {

src/udev/udevadm-trigger.c

@@ -38,7 +38,6 @@ static int dry_run;
 
 static void exec_list(struct udev_enumerate *udev_enumerate, const char *action)
 {
-        struct udev *udev = udev_enumerate_get_udev(udev_enumerate);
         struct udev_list_entry *entry;
 
         udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(udev_enumerate)) {

src/udev/udevd.c

@@ -880,11 +880,6 @@ static void static_dev_create_from_modules(struct udev *udev)
 static void static_dev_create_links(struct udev *udev)
 {
         DIR *dir;
-
-        dir = opendir(udev_get_dev_path(udev));
-        if (dir == NULL)
-                return;
-
         struct stdlinks {
                 const char *link;
                 const char *target;
@@ -898,6 +893,10 @@ static void static_dev_create_links(struct udev *udev)
         };
         unsigned int i;
 
+        dir = opendir(udev_get_dev_path(udev));
+        if (dir == NULL)
+                return;
+
         for (i = 0; i < ARRAY_SIZE(stdlinks); i++) {
                 struct stat sb;
 
@@ -1115,7 +1114,6 @@ int main(int argc, char *argv[])
         int fd_worker = -1;
         struct epoll_event ep_ctrl, ep_inotify, ep_signal, ep_netlink, ep_worker;
         struct udev_ctrl_connection *ctrl_conn = NULL;
-        char **s;
         int rc = 1;
 
         udev = udev_new();
@@ -1525,7 +1523,7 @@ int main(int argc, char *argv[])
                                         continue;
 
                                 if ((now_usec() - worker->event_start_usec) > 30 * 1000 * 1000) {
-                                        log_error("worker [%u] timeout, kill it\n", worker->pid,
+                                        log_error("worker [%u] %s timeout; kill it\n", worker->pid,
                                             worker->event ? worker->event->devpath : "<idle>");
                                         kill(worker->pid, SIGKILL);
                                         worker->state = WORKER_KILLED;