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/*
* 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);
/*
* Determine the initial instruction set to be used for this trace.
* Later components may decide to change this.
*/
JitInstructionSetType dvmCompilerInstructionSet(void)
{
return DALVIK_JIT_THUMB2;
}
/* First, declare dvmCompiler_TEMPLATE_XXX for each template */
#define JIT_TEMPLATE(X) extern "C" void dvmCompiler_TEMPLATE_##X();
#include "../../../template/armv5te-vfp/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-vfp/TemplateOpList.h"
#undef JIT_TEMPLATE
/* Target-specific configuration */
gDvmJit.jitTableSize = 1 << 12; // 4096
gDvmJit.jitTableMask = gDvmJit.jitTableSize - 1;
gDvmJit.threshold = 40;
gDvmJit.codeCacheSize = 1024*1024;
#if defined(WITH_SELF_VERIFICATION)
/* Force into blocking */
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();
}
/* FIXME - comment out the following to enable method-based JIT */
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 = 7;
break;
default:
LOGE("Unknown target optimization hint key: %d",key);
res = 0;
}
return res;
}
void dvmCompilerGenMemBarrier(CompilationUnit *cUnit, int barrierKind)
{
#if ANDROID_SMP != 0
ArmLIR *dmb = newLIR1(cUnit, kThumb2Dmb, barrierKind);
dmb->defMask = ENCODE_ALL;
#endif
}
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