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author | Brian Carlstrom <bdc@google.com> | 2013-07-12 13:46:57 -0700 |
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committer | Brian Carlstrom <bdc@google.com> | 2013-07-12 17:49:01 -0700 |
commit | 7940e44f4517de5e2634a7e07d58d0fb26160513 (patch) | |
tree | ac90242d96229a6942f6e24ab137bc1f8f2e0025 /runtime/stack_indirect_reference_table.h | |
parent | 5cd9e3b122f276f610980cbaf0d2ad6ed4cd9088 (diff) | |
download | art-7940e44f4517de5e2634a7e07d58d0fb26160513.zip art-7940e44f4517de5e2634a7e07d58d0fb26160513.tar.gz art-7940e44f4517de5e2634a7e07d58d0fb26160513.tar.bz2 |
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
Diffstat (limited to 'runtime/stack_indirect_reference_table.h')
-rw-r--r-- | runtime/stack_indirect_reference_table.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/runtime/stack_indirect_reference_table.h b/runtime/stack_indirect_reference_table.h new file mode 100644 index 0000000..dd10634 --- /dev/null +++ b/runtime/stack_indirect_reference_table.h @@ -0,0 +1,99 @@ +/* + * 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_STACK_INDIRECT_REFERENCE_TABLE_H_ +#define ART_SRC_STACK_INDIRECT_REFERENCE_TABLE_H_ + +#include "base/logging.h" +#include "base/macros.h" + +namespace art { +namespace mirror { +class Object; +} +class Thread; + +// Stack allocated indirect reference table. It can allocated within +// the bridge frame between managed and native code backed by stack +// storage or manually allocated by SirtRef to hold one reference. +class StackIndirectReferenceTable { + public: + explicit StackIndirectReferenceTable(mirror::Object* object) : + number_of_references_(1), link_(NULL) { + references_[0] = object; + } + + ~StackIndirectReferenceTable() {} + + // Number of references contained within this SIRT + size_t NumberOfReferences() const { + return number_of_references_; + } + + // Link to previous SIRT or NULL + StackIndirectReferenceTable* GetLink() const { + return link_; + } + + void SetLink(StackIndirectReferenceTable* sirt) { + DCHECK_NE(this, sirt); + link_ = sirt; + } + + mirror::Object* GetReference(size_t i) const { + DCHECK_LT(i, number_of_references_); + return references_[i]; + } + + void SetReference(size_t i, mirror::Object* object) { + DCHECK_LT(i, number_of_references_); + references_[i] = object; + } + + bool Contains(mirror::Object** sirt_entry) const { + // A SIRT should always contain something. One created by the + // jni_compiler should have a jobject/jclass as a native method is + // passed in a this pointer or a class + DCHECK_GT(number_of_references_, 0U); + return ((&references_[0] <= sirt_entry) + && (sirt_entry <= (&references_[number_of_references_ - 1]))); + } + + // Offset of length within SIRT, used by generated code + static size_t NumberOfReferencesOffset() { + return OFFSETOF_MEMBER(StackIndirectReferenceTable, number_of_references_); + } + + // Offset of link within SIRT, used by generated code + static size_t LinkOffset() { + return OFFSETOF_MEMBER(StackIndirectReferenceTable, link_); + } + + private: + StackIndirectReferenceTable() {} + + size_t number_of_references_; + StackIndirectReferenceTable* link_; + + // number_of_references_ are available if this is allocated and filled in by jni_compiler. + mirror::Object* references_[1]; + + DISALLOW_COPY_AND_ASSIGN(StackIndirectReferenceTable); +}; + +} // namespace art + +#endif // ART_SRC_STACK_INDIRECT_REFERENCE_TABLE_H_ |