*/
#define _GNU_SOURCE
+#define _LGPL_SOURCE
#include <error.h>
#include <dlfcn.h>
#include <stdlib.h>
#include <urcu/arch.h>
#include "clock.h"
+#include "getenv.h"
struct lttng_trace_clock *lttng_trace_clock;
static
struct lttng_trace_clock user_tc;
+static
+void *clock_handle;
+
int lttng_ust_trace_clock_set_read64_cb(uint64_t (*read64)(void))
{
if (CMM_LOAD_SHARED(lttng_trace_clock))
void lttng_ust_clock_init(void)
{
const char *libname;
- void *handle;
void (*libinit)(void);
-
- libname = secure_getenv("LTTNG_UST_CLOCK_PLUGIN");
+ if (clock_handle)
+ return;
+ libname = lttng_getenv("LTTNG_UST_CLOCK_PLUGIN");
if (!libname)
return;
- handle = dlopen(libname, RTLD_NOW);
- if (!handle) {
+ clock_handle = dlopen(libname, RTLD_NOW);
+ if (!clock_handle) {
PERROR("Cannot load LTTng UST clock override library %s",
libname);
return;
}
dlerror();
- libinit = (void (*)(void)) dlsym(handle,
+ libinit = (void (*)(void)) dlsym(clock_handle,
"lttng_ust_clock_plugin_init");
if (!libinit) {
PERROR("Cannot find LTTng UST clock override library %s initialization function lttng_ust_clock_plugin_init()",