commit dbfe254f5ca96f6c5b2284478597d6140c01a394
author Andreas Gampe <agampe@google.com> Tue Nov 25 22:21:42 2014 -0800
committer Andreas Gampe <agampe@google.com> Wed Nov 26 15:07:36 2014 -0800
tree deb37dd72a728df8cda0e3879f89f13e6e461a2a
parent 220526b05d4365a1820a694c98527eda2d3dc980

ART: Print initialization failures to file

Add the ability to print boot image initialization failures to a
file.

Add a tool to convert said file into a Graphviz file.

Change-Id: Iedcc337bdf05654c154aa553236f20bdd15572ee

compiler/driver/compiler_driver.cc

diff --git a/compiler/driver/compiler_driver.cc b/compiler/driver/compiler_driver.cc
index 2e9f835..57f38ab 100644
--- a/compiler/driver/compiler_driver.cc
+++ b/compiler/driver/compiler_driver.cc
@@ -1820,6 +1820,12 @@
               mirror::Throwable* exception = soa.Self()->GetException(&throw_location);
               VLOG(compiler) << "Initialization of " << descriptor << " aborted because of "
                   << exception->Dump();
+              std::ostream* file_log = manager->GetCompiler()->
+                  GetCompilerOptions().GetInitFailureOutput();
+              if (file_log != nullptr) {
+                *file_log << descriptor << "\n";
+                *file_log << exception->Dump() << "\n";
+              }
               soa.Self()->ClearException();
               transaction.Abort();
               CHECK_EQ(old_status, klass->GetStatus()) << "Previous class status not restored";

compiler/driver/compiler_options.h

diff --git a/compiler/driver/compiler_options.h b/compiler/driver/compiler_options.h
index 0592f0c..aec7d24 100644
--- a/compiler/driver/compiler_options.h
+++ b/compiler/driver/compiler_options.h
@@ -17,6 +17,7 @@
 #ifndef ART_COMPILER_DRIVER_COMPILER_OPTIONS_H_
 #define ART_COMPILER_DRIVER_COMPILER_OPTIONS_H_
 
+#include <ostream>
 #include <string>
 #include <vector>
 
@@ -70,7 +71,8 @@
 #ifdef ART_SEA_IR_MODE
     sea_ir_mode_(false),
 #endif
-    verbose_methods_(nullptr) {
+    verbose_methods_(nullptr),
+    init_failure_output_(nullptr) {
   }
 
   CompilerOptions(CompilerFilter compiler_filter,
@@ -90,7 +92,8 @@
 #ifdef ART_SEA_IR_MODE
                   bool sea_ir_mode,
 #endif
-                  const std::vector<std::string>* verbose_methods
+                  const std::vector<std::string>* verbose_methods,
+                  std::ostream* init_failure_output
                   ) :  // NOLINT(whitespace/parens)
     compiler_filter_(compiler_filter),
     huge_method_threshold_(huge_method_threshold),
@@ -109,7 +112,8 @@
 #ifdef ART_SEA_IR_MODE
     sea_ir_mode_(sea_ir_mode),
 #endif
-    verbose_methods_(verbose_methods) {
+    verbose_methods_(verbose_methods),
+    init_failure_output_(init_failure_output) {
   }
 
   CompilerFilter GetCompilerFilter() const {
@@ -217,6 +221,10 @@
     return false;
   }
 
+  std::ostream* GetInitFailureOutput() const {
+    return init_failure_output_;
+  }
+
  private:
   CompilerFilter compiler_filter_;
   const size_t huge_method_threshold_;
@@ -241,6 +249,9 @@
   // Vector of methods to have verbose output enabled for.
   const std::vector<std::string>* const verbose_methods_;
 
+  // Log initialization of initialization failures to this stream if not null.
+  std::ostream* const init_failure_output_;
+
   DISALLOW_COPY_AND_ASSIGN(CompilerOptions);
 };
 std::ostream& operator<<(std::ostream& os, const CompilerOptions::CompilerFilter& rhs);