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diff src/os/posix/vm/os_posix.cpp @ 6197:d2a62e0f25eb

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6995781: Native Memory Tracking (Phase 1) 7151532: DCmd for hotspot native memory tracking Summary: Implementation of native memory tracking phase 1, which tracks VM native memory usage, and related DCmd Reviewed-by: acorn, coleenp, fparain
author zgu
date Thu, 28 Jun 2012 17:03:16 -0400
parents 7432b9db36ff
children 65906dc96aa1
line wrap: on
line diff
--- a/src/os/posix/vm/os_posix.cpp	Wed Jun 27 15:23:36 2012 +0200
+++ b/src/os/posix/vm/os_posix.cpp	Thu Jun 28 17:03:16 2012 -0400
@@ -23,6 +23,7 @@
 */
 
 #include "prims/jvm.h"
+#include "runtime/frame.inline.hpp"
 #include "runtime/os.hpp"
 #include "utilities/vmError.hpp"
 
@@ -61,6 +62,23 @@
   VMError::report_coredump_status(buffer, success);
 }
 
+address os::get_caller_pc(int n) {
+#ifdef _NMT_NOINLINE_
+  n ++;
+#endif
+  frame fr = os::current_frame();
+  while (n > 0 && fr.pc() &&
+    !os::is_first_C_frame(&fr) && fr.sender_pc()) {
+    fr = os::get_sender_for_C_frame(&fr);
+    n --;
+  }
+  if (n == 0) {
+    return fr.pc();
+  } else {
+    return NULL;
+  }
+}
+
 int os::get_last_error() {
   return errno;
 }