Hide lttng_ust_getenv private symbols

[lttng-ust.git] / liblttng-ust / lttng-ust-comm.c

diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c
index 8d90e2c367dafae1a88b8f077208a8fb0596e82d..25de5dd5535a3f25ee4b15e8d9ac709152bf4cf1 100644 (file)
--- a/liblttng-ust/lttng-ust-comm.c
+++ b/liblttng-ust/lttng-ust-comm.c
@@ -1,22 +1,8 @@
 /*
- * lttng-ust-comm.c
+ * SPDX-License-Identifier: LGPL-2.1-only
  *
  * Copyright (C) 2011 David Goulet <david.goulet@polymtl.ca>
  * Copyright (C) 2011 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 #define _LGPL_SOURCE
@@ -43,7 +29,6 @@
 #include <urcu/compiler.h>
 #include <lttng/urcu/urcu-ust.h>
 
-#include <lttng/align.h>
 #include <lttng/ust-events.h>
 #include <lttng/ust-abi.h>
 #include <lttng/ust.h>
@@ -53,7 +38,7 @@
 #include <ust-comm.h>
 #include <ust-fd.h>
 #include <usterr-signal-safe.h>
-#include <helper.h>
+#include <ust-helper.h>
 #include "tracepoint-internal.h"
 #include "lttng-tracer-core.h"
 #include "compat.h"
@@ -63,6 +48,8 @@
 #include "../libringbuffer/getcpu.h"
 #include "getenv.h"
 #include "ust-events-internal.h"
+#include "context-internal.h"
+#include "ust-compat.h"
 
 /* Concatenate lttng ust shared library name with its major version number. */
 #define LTTNG_UST_LIB_SO_NAME "liblttng-ust.so." __ust_stringify(CONFIG_LTTNG_UST_LIBRARY_VERSION_MAJOR)
@@ -373,9 +360,13 @@ extern void lttng_ring_buffer_client_overwrite_rt_exit(void);
 extern void lttng_ring_buffer_client_discard_exit(void);
 extern void lttng_ring_buffer_client_discard_rt_exit(void);
 extern void lttng_ring_buffer_metadata_client_exit(void);
+LTTNG_HIDDEN
 extern void lttng_counter_client_percpu_32_modular_init(void);
+LTTNG_HIDDEN
 extern void lttng_counter_client_percpu_32_modular_exit(void);
+LTTNG_HIDDEN
 extern void lttng_counter_client_percpu_64_modular_init(void);
+LTTNG_HIDDEN
 extern void lttng_counter_client_percpu_64_modular_exit(void);
 
 static char *get_map_shm(struct sock_info *sock_info);
@@ -407,11 +398,11 @@ const char *get_lttng_home_dir(void)
 {
        const char *val;
 
-       val = (const char *) lttng_getenv("LTTNG_HOME");
+       val = (const char *) lttng_ust_getenv("LTTNG_HOME");
        if (val != NULL) {
                return val;
        }
-       return (const char *) lttng_getenv("HOME");
+       return (const char *) lttng_ust_getenv("HOME");
 }
 
 /*
@@ -430,17 +421,17 @@ void lttng_fixup_ust_mutex_nest_tls(void)
 }
 
 /*
- * Fixup urcu bp TLS.
+ * Fixup lttng-ust urcu TLS.
  */
 static
-void lttng_fixup_urcu_bp_tls(void)
+void lttng_fixup_lttng_ust_urcu_tls(void)
 {
        (void) lttng_ust_urcu_read_ongoing();
 }
 
 void lttng_ust_fixup_tls(void)
 {
-       lttng_fixup_urcu_bp_tls();
+       lttng_fixup_lttng_ust_urcu_tls();
        lttng_fixup_ringbuffer_tls();
        lttng_fixup_vtid_tls();
        lttng_fixup_nest_count_tls();
@@ -561,7 +552,7 @@ long get_timeout(void)
        long constructor_delay_ms = LTTNG_UST_DEFAULT_CONSTRUCTOR_TIMEOUT_MS;
 
        if (!got_timeout_env) {
-               str_timeout = lttng_getenv("LTTNG_UST_REGISTER_TIMEOUT");
+               str_timeout = lttng_ust_getenv("LTTNG_UST_REGISTER_TIMEOUT");
                got_timeout_env = 1;
        }
        if (str_timeout)
@@ -628,7 +619,7 @@ static
 void get_allow_blocking(void)
 {
        const char *str_allow_blocking =
-               lttng_getenv("LTTNG_UST_ALLOW_BLOCKING");
+               lttng_ust_getenv("LTTNG_UST_ALLOW_BLOCKING");
 
        if (str_allow_blocking) {
                DBG("%s environment variable is set",
@@ -1727,7 +1718,7 @@ void wait_for_sessiond(struct sock_info *sock_info)
 "Please upgrade your kernel "
 "(fix is commit 9ea71503a8ed9184d2d0b8ccc4d269d05f7940ae in Linux kernel "
 "mainline). LTTng-UST will use polling mode fallback.");
-                       if (ust_debug())
+                       if (ust_err_debug_enabled())
                                PERROR("futex");
                        goto end_wait;
                }
@@ -2116,8 +2107,8 @@ void __attribute__((constructor)) lttng_ust_init(void)
         * sessiond (otherwise leading to errors when trying to create
         * sessiond before the init functions are completed).
         */
-       init_usterr();
-       lttng_ust_getenv_init();        /* Needs init_usterr() to be completed. */
+       ust_err_init();
+       lttng_ust_getenv_init();        /* Needs ust_err_init() to be completed. */
        init_tracepoint();
        lttng_ust_init_fd_tracker();
        lttng_ust_clock_init();
@@ -2402,8 +2393,6 @@ void ust_before_fork(sigset_t *save_sigset)
 
        ust_lock_nocheck();
        lttng_ust_urcu_before_fork();
-       if (lttng_ust_liburcu_bp_before_fork)
-               lttng_ust_liburcu_bp_before_fork();
        lttng_ust_lock_fd_tracker();
        lttng_perf_lock();
 }
@@ -2432,8 +2421,6 @@ void ust_after_fork_parent(sigset_t *restore_sigset)
                return;
        DBG("process %d", getpid());
        lttng_ust_urcu_after_fork_parent();
-       if (lttng_ust_liburcu_bp_after_fork_parent)
-               lttng_ust_liburcu_bp_after_fork_parent();
        /* Release mutexes and reenable signals */
        ust_after_fork_common(restore_sigset);
 }
@@ -2460,8 +2447,6 @@ void ust_after_fork_child(sigset_t *restore_sigset)
        DBG("process %d", getpid());
        /* Release urcu mutexes */
        lttng_ust_urcu_after_fork_child();
-       if (lttng_ust_liburcu_bp_after_fork_child)
-               lttng_ust_liburcu_bp_after_fork_child();
        lttng_ust_cleanup(0);
        /* Release mutexes and reenable signals */
        ust_after_fork_common(restore_sigset);