commit 40e7ed58d73eae59d0cf2fed61284d16692e307b
author Andrew Hsieh <andrewhsieh@google.com> Mon Jul 02 11:17:04 2012 -0700
committer Andrew Hsieh <andrewhsieh@google.com> Mon Jul 02 11:17:04 2012 -0700
tree 07def7271e63e1367672dc37bcffe89627f4ad9b
parent 4d0128f13a3ca9f7a0c81b6e69f7e20d28e9e6e3

Unhide rtld_db_dlactivity()

Since linker is built with -fvisibility=hidden rtld_db_dlactivity()
if hidden from gdb.  Unhide it otherwise gdb may not know linker
activity and rescan solib

Change-Id: Ia8cd8d9738c6ea5696ba2ef0ebf2cf783f9ca70a

linker/linker.c

diff --git a/linker/linker.c b/linker/linker.c
index eb9cc3e..df4a8b1 100644
--- a/linker/linker.c
+++ b/linker/linker.c
@@ -159,7 +159,7 @@
  * This function is an empty stub where GDB locates a breakpoint to get notified
  * about linker activity.
  */
-extern void __attribute__((noinline)) rtld_db_dlactivity(void);
+extern void __attribute__((noinline)) __attribute__((visibility("default"))) rtld_db_dlactivity(void);
 
 static struct r_debug _r_debug = {1, NULL, &rtld_db_dlactivity,
                                   RT_CONSISTENT, 0};

linker/rt.c

diff --git a/linker/rt.c b/linker/rt.c
index 30d5a48..afbd651 100644
--- a/linker/rt.c
+++ b/linker/rt.c
@@ -28,9 +28,9 @@
 
 /*
  * This function is an empty stub where GDB locates a breakpoint to get notified
- * about linker activity.
+ * about linker activity.  It canʼt be inlined away, canʼt be hidden.
  */
-void __attribute__((noinline)) rtld_db_dlactivity(void)
+void __attribute__((noinline)) __attribute__((visibility("default"))) rtld_db_dlactivity(void)
 {
 }