X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Ftracepoint.c;fp=liblttng-ust%2Ftracepoint.c;h=db5886009de5f620f24880e884b1345618470a2d;hb=b0e63efd79808adaa162dbdffd95c9d6838223e5;hp=a594d73ddd7bc6a3c893acd3d645635d23bc6c73;hpb=a83870d3be1aff325c047ce45c0d8ff95c12c287;p=lttng-ust.git

diff --git a/liblttng-ust/tracepoint.c b/liblttng-ust/tracepoint.c
index a594d73d..db588600 100644
--- a/liblttng-ust/tracepoint.c
+++ b/liblttng-ust/tracepoint.c
@@ -44,7 +44,11 @@
 #include "error.h"
 
 /* Test compiler support for weak symbols with hidden visibility. */
-char __tracepoint_test_symbol[9] __attribute__((weak, visibility("hidden")));
+int __tracepoint_test_symbol1 __attribute__((weak, visibility("hidden")));
+void *__tracepoint_test_symbol2 __attribute__((weak, visibility("hidden")));
+struct {
+	char a[24];
+} __tracepoint_test_symbol3 __attribute__((weak, visibility("hidden")));
 
 /* Set to 1 to enable tracepoint debug output */
 static const int tracepoint_debug;
@@ -814,10 +818,18 @@ int tracepoint_unregister_lib(struct lttng_ust_tracepoint * const *tracepoints_s
  */
 static void check_weak_hidden(void)
 {
-	DBG("Your compiler support for weak symbols with hidden visibility is %s",
-		__tracepoint_test_symbol == lttng_ust_tp_check_weak_hidden() ?
-			"OK" :
-			"BROKEN. Please upgrade or fix your compiler to use LTTng-UST tracepoints.");
+	DBG("Your compiler treats weak symbols with hidden visibility for integer objects as %s between compile units part of the same module.",
+		&__tracepoint_test_symbol1 == lttng_ust_tp_check_weak_hidden1() ?
+			"SAME address" :
+			"DIFFERENT addresses");
+	DBG("Your compiler treats weak symbols with hidden visibility for pointer objects as %s between compile units part of the same module.",
+		&__tracepoint_test_symbol2 == lttng_ust_tp_check_weak_hidden2() ?
+			"SAME address" :
+			"DIFFERENT addresses");
+	DBG("Your compiler treats weak symbols with hidden visibility for 24-byte structure objects as %s between compile units part of the same module.",
+		&__tracepoint_test_symbol3 == lttng_ust_tp_check_weak_hidden3() ?
+			"SAME address" :
+			"DIFFERENT addresses");
 }
 
 void init_tracepoint(void)