ust-fd: Add close_range declaration

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

diff --git a/liblttng-ust-dl/lttng-ust-dl.c b/liblttng-ust-dl/lttng-ust-dl.c
deleted file mode 100644 (file)
index 13d2b43..0000000
--- a/liblttng-ust-dl/lttng-ust-dl.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * Copyright (C) 2013  Paul Woegerer <paul.woegerer@mentor.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; 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
-#define _GNU_SOURCE
-#include <lttng/ust-dlfcn.h>
-#include <inttypes.h>
-#include <link.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <signal.h>
-#include <sched.h>
-#include <stdarg.h>
-#include "usterr-signal-safe.h"
-
-#include <lttng/ust-compiler.h>
-#include <lttng/ust.h>
-
-#define TRACEPOINT_DEFINE
-#include "ust_dl.h"
-
-static void *(*__lttng_ust_plibc_dlopen)(const char *filename, int flag);
-static int (*__lttng_ust_plibc_dlclose)(void *handle);
-
-static
-void *_lttng_ust_dl_libc_dlopen(const char *filename, int flag)
-{
-       if (!__lttng_ust_plibc_dlopen) {
-               __lttng_ust_plibc_dlopen = dlsym(RTLD_NEXT, "dlopen");
-               if (__lttng_ust_plibc_dlopen == NULL) {
-                       fprintf(stderr, "%s\n", dlerror());
-                       return NULL;
-               }
-       }
-       return __lttng_ust_plibc_dlopen(filename, flag);
-}
-
-static
-int _lttng_ust_dl_libc_dlclose(void *handle)
-{
-       if (!__lttng_ust_plibc_dlclose) {
-               __lttng_ust_plibc_dlclose = dlsym(RTLD_NEXT, "dlclose");
-               if (__lttng_ust_plibc_dlclose == NULL) {
-                       fprintf(stderr, "%s\n", dlerror());
-                       return -1;
-               }
-       }
-       return __lttng_ust_plibc_dlclose(handle);
-}
-
-static
-void lttng_ust_dl_dlopen(void *so_base, const char *so_name)
-{
-       char resolved_path[PATH_MAX];
-       struct stat sostat;
-
-       if (!realpath(so_name, resolved_path)) {
-               ERR("could not resolve path '%s'", so_name);
-               return;
-       }
-
-       if (stat(resolved_path, &sostat)) {
-               ERR("could not access file status for %s", resolved_path);
-               return;
-       }
-
-       tracepoint(lttng_ust_dl, dlopen,
-               so_base, resolved_path, sostat.st_size, sostat.st_mtime);
-       return;
-}
-
-void *dlopen(const char *filename, int flag)
-{
-       void *handle = _lttng_ust_dl_libc_dlopen(filename, flag);
-       if (__tracepoint_ptrs_registered && handle) {
-               struct link_map *p = NULL;
-               if (dlinfo(handle, RTLD_DI_LINKMAP, &p) != -1 && p != NULL
-                               && p->l_addr != 0)
-                       lttng_ust_dl_dlopen((void *) p->l_addr, p->l_name);
-       }
-       return handle;
-}
-
-int dlclose(void *handle)
-{
-       if (__tracepoint_ptrs_registered && handle) {
-               struct link_map *p = NULL;
-               if (dlinfo(handle, RTLD_DI_LINKMAP, &p) != -1 && p != NULL
-                               && p->l_addr != 0)
-                       tracepoint(lttng_ust_dl, dlclose, (void *) p->l_addr);
-       }
-       return _lttng_ust_dl_libc_dlclose(handle);
-}