# HG changeset patch
# User anoll
# Date 1369311069 -7200
# Node ID 01e51113b4f5a175f4565f8e0e77bd70e7d5d717
# Parent  3f281b313240a8b5901bf107447f2b74b363d26a
8014430: JRE crashes instead of stop compilation on full Code Cache. Internal Error (c1_Compiler.cpp:87)
Summary: Disable client compiler and switch to interpreter if there is not enough free space in the code cache.
Reviewed-by: kvn, twisti

diff -r 3f281b313240 -r 01e51113b4f5 src/share/vm/c1/c1_Compiler.cpp
--- a/src/share/vm/c1/c1_Compiler.cpp	Wed May 22 18:25:43 2013 -0700
+++ b/src/share/vm/c1/c1_Compiler.cpp	Thu May 23 14:11:09 2013 +0200
@@ -77,30 +77,42 @@
 }
 
 
-BufferBlob* Compiler::build_buffer_blob() {
+BufferBlob* Compiler::get_buffer_blob(ciEnv* env) {
+  // Allocate buffer blob once at startup since allocation for each
+  // compilation seems to be too expensive (at least on Intel win32).
+  BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
+  if (buffer_blob != NULL) {
+    return buffer_blob;
+  }
+
   // setup CodeBuffer.  Preallocate a BufferBlob of size
   // NMethodSizeLimit plus some extra space for constants.
   int code_buffer_size = Compilation::desired_max_code_buffer_size() +
     Compilation::desired_max_constant_size();
-  BufferBlob* blob = BufferBlob::create("Compiler1 temporary CodeBuffer",
-                                        code_buffer_size);
-  guarantee(blob != NULL, "must create initial code buffer");
-  return blob;
+
+  buffer_blob = BufferBlob::create("Compiler1 temporary CodeBuffer",
+                                   code_buffer_size);
+  if (buffer_blob == NULL) {
+    CompileBroker::handle_full_code_cache();
+    env->record_failure("CodeCache is full");
+  } else {
+    CompilerThread::current()->set_buffer_blob(buffer_blob);
+  }
+
+  return buffer_blob;
 }
 
 
 void Compiler::compile_method(ciEnv* env, ciMethod* method, int entry_bci) {
-  // Allocate buffer blob once at startup since allocation for each
-  // compilation seems to be too expensive (at least on Intel win32).
-  BufferBlob* buffer_blob = CompilerThread::current()->get_buffer_blob();
+  BufferBlob* buffer_blob = Compiler::get_buffer_blob(env);
   if (buffer_blob == NULL) {
-    buffer_blob = build_buffer_blob();
-    CompilerThread::current()->set_buffer_blob(buffer_blob);
+    return;
   }
 
   if (!is_initialized()) {
     initialize();
   }
+
   // invoke compilation
   {
     // We are nested here because we need for the destructor
diff -r 3f281b313240 -r 01e51113b4f5 src/share/vm/c1/c1_Compiler.hpp
--- a/src/share/vm/c1/c1_Compiler.hpp	Wed May 22 18:25:43 2013 -0700
+++ b/src/share/vm/c1/c1_Compiler.hpp	Thu May 23 14:11:09 2013 +0200
@@ -46,7 +46,7 @@
 
   virtual bool is_c1()                           { return true; };
 
-  BufferBlob* build_buffer_blob();
+  BufferBlob* get_buffer_blob(ciEnv* env);
 
   // Missing feature tests
   virtual bool supports_native()                 { return true; }