You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
3.4 KiB
91 lines
3.4 KiB
/*
|
|
* Copyright 2010-2012, 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.
|
|
*/
|
|
|
|
#include "bcc/Script.h"
|
|
|
|
#include "Assert.h"
|
|
#include "Log.h"
|
|
|
|
#include "bcc/CompilerConfig.h"
|
|
#include "bcc/Source.h"
|
|
|
|
#include "bcinfo/MetadataExtractor.h"
|
|
|
|
#include <llvm/IR/Module.h>
|
|
|
|
using namespace bcc;
|
|
|
|
Script::Script(Source *pSource)
|
|
: mSource(pSource),
|
|
mOptimizationLevel(llvm::CodeGenOpt::Aggressive),
|
|
mLinkRuntimeCallback(nullptr), mEmbedInfo(false), mEmbedGlobalInfo(false),
|
|
mEmbedGlobalInfoSkipConstant(false) {}
|
|
|
|
bool Script::LinkRuntime(const char *core_lib) {
|
|
bccAssert(core_lib != nullptr);
|
|
|
|
// Using the same context with the source.
|
|
BCCContext &context = mSource->getContext();
|
|
|
|
Source *libclcore_source = Source::CreateFromFile(context, core_lib);
|
|
if (libclcore_source == nullptr) {
|
|
ALOGE("Failed to load Renderscript library '%s' to link!", core_lib);
|
|
return false;
|
|
}
|
|
|
|
if (mLinkRuntimeCallback != nullptr) {
|
|
mLinkRuntimeCallback(this, &mSource->getModule(),
|
|
&libclcore_source->getModule());
|
|
}
|
|
|
|
// For every named metadata node in the source (libclcore_source),
|
|
// the merge process ensures there is a same-named metadata node in
|
|
// the destination (mSource) (creating it if necessary) and appends
|
|
// all of the source node's operands to the end of the destination
|
|
// node's operands. In the case of the wrapper metadata
|
|
//
|
|
// kWrapperMetadataName -> (compilerVersion, optimizationLevel)
|
|
//
|
|
// this is not the behavior we want. Instead, we want to retain the
|
|
// source wrapper metadata:
|
|
// - compiler version in libclcore_source is 0, a nonsensical value.
|
|
// As documented in slang_version.h, libclcore_source must not
|
|
// violate any compiler version guarantees, so the right thing to
|
|
// do is retain the compiler version from source, which specifies
|
|
// which guarantees source (and hence the merged code) satisfies.
|
|
// See frameworks/rs/driver/README.txt regarding libclcore_source
|
|
// obeying compiler version guarantees.
|
|
// - optimization level in source and libclcore_source is meaningful.
|
|
// We simply define the optimization level in the linked code to
|
|
// be the optimization level of source.
|
|
// The easiest way to retain the source wrapper metadata is to delete
|
|
// the libclcore_source wrapper metadata.
|
|
llvm::Module &libclcore_module = libclcore_source->getModule();
|
|
llvm::NamedMDNode *const wrapperMDNode =
|
|
libclcore_module.getNamedMetadata(bcinfo::MetadataExtractor::kWrapperMetadataName);
|
|
bccAssert(wrapperMDNode != nullptr);
|
|
libclcore_module.eraseNamedMetadata(wrapperMDNode);
|
|
if (!mSource->merge(*libclcore_source)) {
|
|
ALOGE("Failed to link Renderscript library '%s'!", core_lib);
|
|
delete libclcore_source;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool Script::mergeSource(Source &pSource) { return mSource->merge(pSource); }
|