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Diffstat (limited to 'vm/compiler/codegen/arm/armv5te/ArchVariant.cpp')
-rw-r--r-- | vm/compiler/codegen/arm/armv5te/ArchVariant.cpp | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/vm/compiler/codegen/arm/armv5te/ArchVariant.cpp b/vm/compiler/codegen/arm/armv5te/ArchVariant.cpp new file mode 100644 index 0000000..f394aa1 --- /dev/null +++ b/vm/compiler/codegen/arm/armv5te/ArchVariant.cpp @@ -0,0 +1,112 @@ +/* + * Copyright (C) 2009 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. + */ + +extern "C" void dvmCompilerTemplateStart(void); + +/* + * This file is included by Codegen-armv5te.c, and implements architecture + * variant-specific code. + */ + +/* + * Determine the initial instruction set to be used for this trace. + * Later components may decide to change this. + */ +JitInstructionSetType dvmCompilerInstructionSet(void) +{ + return DALVIK_JIT_THUMB; +} + +/* First, declare dvmCompiler_TEMPLATE_XXX for each template */ +#define JIT_TEMPLATE(X) extern "C" void dvmCompiler_TEMPLATE_##X(); +#include "../../../template/armv5te/TemplateOpList.h" +#undef JIT_TEMPLATE + +/* Architecture-specific initializations and checks go here */ +bool dvmCompilerArchVariantInit(void) +{ + int i = 0; + + /* + * Then, populate the templateEntryOffsets array with the offsets from the + * the dvmCompilerTemplateStart symbol for each template. + */ +#define JIT_TEMPLATE(X) templateEntryOffsets[i++] = \ + (intptr_t) dvmCompiler_TEMPLATE_##X - (intptr_t) dvmCompilerTemplateStart; +#include "../../../template/armv5te/TemplateOpList.h" +#undef JIT_TEMPLATE + + /* Target-specific configuration */ + gDvmJit.jitTableSize = 1 << 9; // 512 + gDvmJit.jitTableMask = gDvmJit.jitTableSize - 1; + gDvmJit.threshold = 200; + gDvmJit.codeCacheSize = 512*1024; + +#if defined(WITH_SELF_VERIFICATION) + /* Force into blocking mode */ + gDvmJit.blockingMode = true; + gDvm.nativeDebuggerActive = true; +#endif + + /* Codegen-specific assumptions */ + assert(OFFSETOF_MEMBER(ClassObject, vtable) < 128 && + (OFFSETOF_MEMBER(ClassObject, vtable) & 0x3) == 0); + assert(OFFSETOF_MEMBER(ArrayObject, length) < 128 && + (OFFSETOF_MEMBER(ArrayObject, length) & 0x3) == 0); + assert(OFFSETOF_MEMBER(ArrayObject, contents) < 256); + + /* Up to 5 args are pushed on top of FP - sizeofStackSaveArea */ + assert(sizeof(StackSaveArea) < 236); + + /* + * EA is calculated by doing "Rn + imm5 << 2". Make sure that the last + * offset from the struct is less than 128. + */ + if ((offsetof(Thread, jitToInterpEntries) + + sizeof(struct JitToInterpEntries)) >= 128) { + LOGE("Thread.jitToInterpEntries size overflow"); + dvmAbort(); + } + + /* No method JIT for Thumb backend */ + gDvmJit.disableOpt |= (1 << kMethodJit); + + // Make sure all threads have current values + dvmJitUpdateThreadStateAll(); + + return true; +} + +int dvmCompilerTargetOptHint(int key) +{ + int res; + switch (key) { + case kMaxHoistDistance: + res = 2; + break; + default: + LOGE("Unknown target optimization hint key: %d",key); + res = 0; + } + return res; +} + +void dvmCompilerGenMemBarrier(CompilationUnit *cUnit, int barrierKind) +{ +#if ANDROID_SMP != 0 +#error armv5+smp not supported +#endif +} |