ART: Add -verbose:dex

Add a dex verbose flag to separate out concerns for dex investigations.

Bug: 37158297
Test: m test-art-host
Change-Id: Ice5efad919ae0b6838d44e2f3711563a0774ef0e

3 files changed, 10 insertions, 0 deletions

diff --git a/cmdline/cmdline_parser_test.cc b/cmdline/cmdline_parser_test.cc
index 5b331bcbec..1a2b9cde67 100644
--- a/cmdline/cmdline_parser_test.cc
+++ b/cmdline/cmdline_parser_test.cc
@@ -300,6 +300,13 @@ TEST_F(CmdlineParserTest, TestLogVerbosity) {
     log_verbosity.oat = true;
     EXPECT_SINGLE_PARSE_VALUE(log_verbosity, log_args, M::Verbose);
   }
+
+  {
+    const char* log_args = "-verbose:dex";
+    LogVerbosity log_verbosity = LogVerbosity();
+    log_verbosity.dex = true;
+    EXPECT_SINGLE_PARSE_VALUE(log_verbosity, log_args, M::Verbose);
+  }
 }  // TEST_F
 
 // TODO: Enable this b/19274810
diff --git a/cmdline/cmdline_types.h b/cmdline/cmdline_types.h
index cd19fa415c..e33a2070dd 100644
--- a/cmdline/cmdline_types.h
+++ b/cmdline/cmdline_types.h
@@ -656,6 +656,8 @@ struct CmdlineType<LogVerbosity> : CmdlineTypeParser<LogVerbosity> {
         log_verbosity.systrace_lock_logging = true;
       } else if (verbose_options[j] == "agents") {
         log_verbosity.agents = true;
+      } else if (verbose_options[j] == "dex") {
+        log_verbosity.dex = true;
       } else {
         return Result::Usage(std::string("Unknown -verbose option ") + verbose_options[j]);
       }
diff --git a/runtime/base/logging.h b/runtime/base/logging.h
index a173ac2d4d..7a9184e07e 100644
--- a/runtime/base/logging.h
+++ b/runtime/base/logging.h
@@ -56,6 +56,7 @@ struct LogVerbosity {
   bool image;
   bool systrace_lock_logging;  // Enabled with "-verbose:sys-locks".
   bool agents;
+  bool dex;  // Some dex access output etc.
 };
 
 // Global log verbosity setting, initialized by InitLogging.