X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fsyscall.c;h=c38f8910940f0b8bb990034ed4fa0fcef0360fef;hp=b4f2e1eca92f2fb726aa774f8bc94f384bc2f000;hb=24eb8569dc841f318d7964ca9a0ad0a4f9508a8e;hpb=1f47715a589b81c62de8fd49a342bf4cf4be770a

diff --git a/src/bin/lttng-sessiond/syscall.c b/src/bin/lttng-sessiond/syscall.c
index b4f2e1eca..c38f89109 100644
--- a/src/bin/lttng-sessiond/syscall.c
+++ b/src/bin/lttng-sessiond/syscall.c
@@ -16,6 +16,7 @@
  */
 
 #define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <common/bitfield.h>
 #include <common/common.h>
 #include <common/kernel-ctl/kernel-ctl.h>
@@ -404,11 +405,14 @@ ssize_t syscall_list_channel(struct ltt_kernel_channel *kchan,
 			events = new_events;
 		}
 
+		rcu_read_lock();
 		ksyscall = lookup_syscall(syscalls_ht, syscall_table[i].name);
 		if (ksyscall) {
 			update_event_syscall_bitness(events, i, ksyscall->index);
 			continue;
 		}
+		ksyscall = NULL;
+		rcu_read_unlock();
 
 		ret = add_syscall_to_ht(syscalls_ht, i, count);
 		if (ret < 0) {
@@ -428,7 +432,10 @@ ssize_t syscall_list_channel(struct ltt_kernel_channel *kchan,
 	return count;
 
 error:
+	rcu_read_lock();
 	destroy_syscall_ht(syscalls_ht);
+	rcu_read_unlock();
+
 	free(events);
 	return ret;
 }