X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=liblttng-ust%2Flttng-ust-comm.c;h=19ce0ceba780b3aa1c1070244e2207544eb7839d;hb=115db533af4d56a1b5c8b3a5ff6a15dc58579cd8;hp=8d90e2c367dafae1a88b8f077208a8fb0596e82d;hpb=d61ad9ef7bc9a9650ae9e2793ff7e3afe816a670;p=lttng-ust.git diff --git a/liblttng-ust/lttng-ust-comm.c b/liblttng-ust/lttng-ust-comm.c index 8d90e2c3..19ce0ceb 100644 --- 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 * Copyright (C) 2011 Mathieu Desnoyers - * - * 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 @@ -43,17 +29,17 @@ #include #include -#include #include #include #include #include #include +#include #include #include #include #include -#include +#include #include "tracepoint-internal.h" #include "lttng-tracer-core.h" #include "compat.h" @@ -63,6 +49,8 @@ #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 +361,13 @@ 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 +399,11 @@ 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 +422,17 @@ 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 +553,7 @@ 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 +620,7 @@ 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 +1719,7 @@ 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; } @@ -2061,7 +2053,7 @@ quit: * Weak symbol to call when the ust malloc wrapper is not loaded. */ __attribute__((weak)) -void lttng_ust_malloc_wrapper_init(void) +void lttng_ust_libc_wrapper_malloc_init(void) { } @@ -2116,9 +2108,9 @@ 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. */ - init_tracepoint(); + ust_err_init(); + lttng_ust_getenv_init(); /* Needs ust_err_init() to be completed. */ + lttng_ust_tp_init(); lttng_ust_init_fd_tracker(); lttng_ust_clock_init(); lttng_ust_getcpu_init(); @@ -2134,7 +2126,7 @@ void __attribute__((constructor)) lttng_ust_init(void) /* * Invoke ust malloc wrapper init before starting other threads. */ - lttng_ust_malloc_wrapper_init(); + lttng_ust_libc_wrapper_malloc_init(); timeout_mode = get_constructor_timeout(&constructor_timeout); @@ -2278,7 +2270,7 @@ void lttng_ust_cleanup(int exiting) lttng_counter_client_percpu_32_modular_exit(); lttng_counter_client_percpu_64_modular_exit(); lttng_ust_statedump_destroy(); - exit_tracepoint(); + lttng_ust_tp_exit(); if (!exiting) { /* Reinitialize values for fork */ sem_count = sem_count_initial_value; @@ -2402,8 +2394,6 @@ 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 +2422,6 @@ 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 +2448,6 @@ 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);