Create separate Android.mk for main build targets

The runtime, compiler, dex2oat, and oatdump now are in seperate trees
to prevent dependency creep.  They can now be individually built
without rebuilding the rest of the art projects. dalvikvm and jdwpspy
were already this way. Builds in the art directory should behave as
before, building everything including tests.

Change-Id: Ic6b1151e5ed0f823c3dd301afd2b13eb2d8feb81

1 files changed, 78 insertions, 0 deletions

diff --git a/runtime/globals.h b/runtime/globals.h
new file mode 100644
index 0000000..dc9341a
--- /dev/null
+++ b/runtime/globals.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_SRC_GLOBALS_H_
+#define ART_SRC_GLOBALS_H_
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace art {
+
+typedef uint8_t byte;
+typedef intptr_t word;
+typedef uintptr_t uword;
+
+const size_t KB = 1024;
+const size_t MB = KB * KB;
+const size_t GB = KB * KB * KB;
+
+const int kWordSize = sizeof(word);
+const int kPointerSize = sizeof(void*);
+
+const int kBitsPerByte = 8;
+const int kBitsPerByteLog2 = 3;
+const int kBitsPerWord = kWordSize * kBitsPerByte;
+const int kWordHighBitMask = 1 << (kBitsPerWord - 1);
+
+// Required stack alignment
+const int kStackAlignment = 16;
+
+// Required object alignment
+const int kObjectAlignment = 8;
+
+// ARM instruction alignment. ARM processors require code to be 4-byte aligned,
+// but ARM ELF requires 8..
+const int kArmAlignment = 8;
+
+// MIPS instruction alignment.  MIPS processors require code to be 4-byte aligned.
+// TODO: Can this be 4?
+const int kMipsAlignment = 8;
+
+// X86 instruction alignment. This is the recommended alignment for maximum performance.
+const int kX86Alignment = 16;
+
+// System page size. We check this against sysconf(_SC_PAGE_SIZE) at runtime, but use a simple
+// compile-time constant so the compiler can generate better code.
+const int kPageSize = 4096;
+
+// Whether or not this is a debug build. Useful in conditionals where NDEBUG isn't.
+#if defined(NDEBUG)
+const bool kIsDebugBuild = false;
+#else
+const bool kIsDebugBuild = true;
+#endif
+
+// Whether or not this is a target (vs host) build. Useful in conditionals where ART_TARGET isn't.
+#if defined(ART_TARGET)
+const bool kIsTargetBuild = true;
+#else
+const bool kIsTargetBuild = false;
+#endif
+
+}  // namespace art
+
+#endif  // ART_SRC_GLOBALS_H_