X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=libringbuffer%2Fring_buffer_frontend.c;h=0ae3d72f23a5b16b987d5b142fcb6964bd6f0c61;hb=a025b017d398818300ad45c92284116d64c56fc1;hp=0996ecefc0313ff5ef8b955ce7dffd3a6a793849;hpb=64493e4fa019e9bdfe0d9c6a4738c9552f250f35;p=lttng-ust.git

diff --git a/libringbuffer/ring_buffer_frontend.c b/libringbuffer/ring_buffer_frontend.c
index 0996ecef..0ae3d72f 100644
--- a/libringbuffer/ring_buffer_frontend.c
+++ b/libringbuffer/ring_buffer_frontend.c
@@ -53,6 +53,8 @@
 #include "backend.h"
 #include "frontend.h"
 #include "shm.h"
+#include "tlsfixup.h"
+#include "../liblttng-ust/compat.h"	/* For ENODATA */
 
 #ifndef max
 #define max(a, b)	((a) > (b) ? (a) : (b))
@@ -1507,3 +1509,11 @@ int lib_ring_buffer_reserve_slow(struct lttng_ust_lib_ring_buffer_ctx *ctx)
 	ctx->buf_offset = offsets.begin + offsets.pre_header_padding;
 	return 0;
 }
+
+/*
+ * Force a read (imply TLS fixup for dlopen) of TLS variables.
+ */
+void lttng_fixup_ringbuffer_tls(void)
+{
+	asm volatile ("" : : "m" (lib_ring_buffer_nesting));
+}