DexFile: Add an API to query oat file status.
Adds DexFile.getDexFileStatus(path), which returns an opaque,
human-readable string representation of the oat file status. This
representation isn't guaranteed to be stable and can change from
release to release.
bug: 27494108
Change-Id: I5fc42225ae65eb19dcd0c619a40cf674b34fc49c
diff --git a/runtime/native/dalvik_system_DexFile.cc b/runtime/native/dalvik_system_DexFile.cc
index 38d8efc..0126b4d 100644
--- a/runtime/native/dalvik_system_DexFile.cc
+++ b/runtime/native/dalvik_system_DexFile.cc
@@ -16,6 +16,8 @@
#include "dalvik_system_DexFile.h"
+#include <sstream>
+
#include "base/logging.h"
#include "base/stl_util.h"
#include "base/stringprintf.h"
@@ -27,6 +29,7 @@
#include "mirror/class_loader.h"
#include "mirror/object-inl.h"
#include "mirror/string.h"
+#include "oat_file.h"
#include "oat_file_assistant.h"
#include "oat_file_manager.h"
#include "os.h"
@@ -387,6 +390,61 @@
return oat_file_assistant.GetDexOptNeeded(filter);
}
+static jstring DexFile_getDexFileStatus(JNIEnv* env,
+ jclass,
+ jstring javaFilename,
+ jstring javaInstructionSet) {
+ ScopedUtfChars filename(env, javaFilename);
+ if (env->ExceptionCheck()) {
+ return nullptr;
+ }
+
+ ScopedUtfChars instruction_set(env, javaInstructionSet);
+ if (env->ExceptionCheck()) {
+ return nullptr;
+ }
+
+ const InstructionSet target_instruction_set = GetInstructionSetFromString(
+ instruction_set.c_str());
+ if (target_instruction_set == kNone) {
+ ScopedLocalRef<jclass> iae(env, env->FindClass("java/lang/IllegalArgumentException"));
+ std::string message(StringPrintf("Instruction set %s is invalid.", instruction_set.c_str()));
+ env->ThrowNew(iae.get(), message.c_str());
+ return nullptr;
+ }
+
+ OatFileAssistant oat_file_assistant(filename.c_str(), target_instruction_set,
+ false /* profile_changed */,
+ false /* load_executable */);
+
+ std::ostringstream status;
+ bool oat_file_exists = false;
+ bool odex_file_exists = false;
+ if (oat_file_assistant.OatFileExists()) {
+ oat_file_exists = true;
+ status << *oat_file_assistant.OatFileName() << " [compilation_filter=";
+ status << CompilerFilter::NameOfFilter(oat_file_assistant.OatFileCompilerFilter());
+ status << ", status=" << oat_file_assistant.OatFileStatus();
+ }
+
+ if (oat_file_assistant.OdexFileExists()) {
+ odex_file_exists = true;
+ if (oat_file_exists) {
+ status << "] ";
+ }
+ status << *oat_file_assistant.OdexFileName() << " [compilation_filter=";
+ status << CompilerFilter::NameOfFilter(oat_file_assistant.OdexFileCompilerFilter());
+ status << ", status=" << oat_file_assistant.OdexFileStatus();
+ }
+
+ if (!oat_file_exists && !odex_file_exists) {
+ status << "invalid[";
+ }
+
+ status << "]";
+ return env->NewStringUTF(status.str().c_str());
+}
+
static jint DexFile_getDexOptNeeded(JNIEnv* env,
jclass,
jstring javaFilename,
@@ -517,6 +575,8 @@
getNonProfileGuidedCompilerFilter,
"(Ljava/lang/String;)Ljava/lang/String;"),
NATIVE_METHOD(DexFile, isBackedByOatFile, "(Ljava/lang/Object;)Z"),
+ NATIVE_METHOD(DexFile, getDexFileStatus,
+ "(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;")
};
void register_dalvik_system_DexFile(JNIEnv* env) {
diff --git a/runtime/oat_file_assistant.cc b/runtime/oat_file_assistant.cc
index d585440..a64a6df 100644
--- a/runtime/oat_file_assistant.cc
+++ b/runtime/oat_file_assistant.cc
@@ -30,6 +30,7 @@
#include "base/logging.h"
#include "base/stringprintf.h"
+#include "compiler_filter.h"
#include "class_linker.h"
#include "gc/heap.h"
#include "gc/space/image_space.h"
@@ -43,6 +44,24 @@
namespace art {
+std::ostream& operator << (std::ostream& stream, const OatFileAssistant::OatStatus status) {
+ switch (status) {
+ case OatFileAssistant::kOatOutOfDate:
+ stream << "kOatOutOfDate";
+ break;
+ case OatFileAssistant::kOatUpToDate:
+ stream << "kOatUpToDate";
+ break;
+ case OatFileAssistant::kOatNeedsRelocation:
+ stream << "kOatNeedsRelocation";
+ break;
+ default:
+ UNREACHABLE();
+ }
+
+ return stream;
+}
+
OatFileAssistant::OatFileAssistant(const char* dex_location,
const InstructionSet isa,
bool profile_changed,
@@ -350,6 +369,12 @@
return cached_odex_file_is_up_to_date_;
}
+CompilerFilter::Filter OatFileAssistant::OdexFileCompilerFilter() {
+ const OatFile* odex_file = GetOdexFile();
+ CHECK(odex_file != nullptr);
+
+ return odex_file->GetCompilerFilter();
+}
std::string OatFileAssistant::ArtFileName(const OatFile* oat_file) const {
const std::string oat_file_location = oat_file->GetLocation();
// Replace extension with .art
@@ -428,6 +453,13 @@
return cached_oat_file_is_up_to_date_;
}
+CompilerFilter::Filter OatFileAssistant::OatFileCompilerFilter() {
+ const OatFile* oat_file = GetOatFile();
+ CHECK(oat_file != nullptr);
+
+ return oat_file->GetCompilerFilter();
+}
+
OatFileAssistant::OatStatus OatFileAssistant::GivenOatFileStatus(const OatFile& file) {
// TODO: This could cause GivenOatFileIsOutOfDate to be called twice, which
// is more work than we need to do. If performance becomes a concern, and
diff --git a/runtime/oat_file_assistant.h b/runtime/oat_file_assistant.h
index d3228de..34925cd 100644
--- a/runtime/oat_file_assistant.h
+++ b/runtime/oat_file_assistant.h
@@ -19,6 +19,7 @@
#include <cstdint>
#include <memory>
+#include <sstream>
#include <string>
#include "arch/instruction_set.h"
@@ -214,6 +215,9 @@
bool OdexFileIsOutOfDate();
bool OdexFileNeedsRelocation();
bool OdexFileIsUpToDate();
+ // Must only be called if the associated odex file exists, i.e, if
+ // |OdexFileExists() == true|.
+ CompilerFilter::Filter OdexFileCompilerFilter();
// When the dex files is compiled on the target device, the oat file is the
// result. The oat file will have been relocated to some
@@ -230,6 +234,9 @@
bool OatFileIsOutOfDate();
bool OatFileNeedsRelocation();
bool OatFileIsUpToDate();
+ // Must only be called if the associated oat file exists, i.e, if
+ // |OatFileExists() == true|.
+ CompilerFilter::Filter OatFileCompilerFilter();
// Return image file name. Does not cache since it relies on the oat file.
std::string ArtFileName(const OatFile* oat_file) const;
@@ -438,6 +445,8 @@
DISALLOW_COPY_AND_ASSIGN(OatFileAssistant);
};
+std::ostream& operator << (std::ostream& stream, const OatFileAssistant::OatStatus status);
+
} // namespace art
#endif // ART_RUNTIME_OAT_FILE_ASSISTANT_H_
