8080538: hprof does not work well with multiple agents on non-Solaris platforms
Summary: Never take the address of Agent_OnLoad.
Reviewed-by: sla, martin
--- a/jdk/src/jdk.hprof.agent/unix/native/libhprof/hprof_md.c Mon May 18 19:26:48 2015 +0300
+++ b/jdk/src/jdk.hprof.agent/unix/native/libhprof/hprof_md.c Mon May 18 13:34:56 2015 -0700
@@ -290,19 +290,7 @@
Dl_info dlinfo;
libdir[0] = 0;
-#if defined(LINUX) || defined(_ALLBSD_SOURCE) || defined(AIX)
- addr = (void*)&Agent_OnLoad;
-#else
- /* Just using &Agent_OnLoad will get the first external symbol with
- * this name in the first .so, which may not be libhprof.so.
- * On Solaris we can actually ask for the address of our Agent_OnLoad.
- */
- addr = dlsym(RTLD_SELF, "Agent_OnLoad");
- /* Just in case the above didn't work (missing linker patch?). */
- if ( addr == NULL ) {
- addr = (void*)&Agent_OnLoad;
- }
-#endif
+ addr = (void*)&md_get_prelude_path;
/* Use dladdr() to get the full path to libhprof.so, which we use to find
* the prelude file.