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author | Dmitry Petrochenko <dmitry.petrochenko@intel.com> | 2014-04-03 14:35:54 +0700 |
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committer | Andreas Gampe <agampe@google.com> | 2014-04-10 09:20:42 -0700 |
commit | 135016a1feee5576014f377e8006057837ee73a2 (patch) | |
tree | 900578418eea8094513d6e22ab0bb9f616334fd7 /runtime/stack_indirect_reference_table_test.cc | |
parent | 22839a631bb3591a1c0037c388d51a4f18b5fb5e (diff) | |
download | art-135016a1feee5576014f377e8006057837ee73a2.zip art-135016a1feee5576014f377e8006057837ee73a2.tar.gz art-135016a1feee5576014f377e8006057837ee73a2.tar.bz2 |
art: Use SIRT::GetAlignedSirtSizeTarget in calling convention
Calculate frame size based on SIRT::GetAlignedSirtSizeTarget existing method.
Make offset functions pointer-size-dependent for cross-compiling. Add
a test to check whether our computations are correct.
Change-Id: Ic66daf6f9908890eda906bdcbbc4444c4fef614f
Signed-off-by: Dmitry Petrochenko <dmitry.petrochenko@intel.com>
Diffstat (limited to 'runtime/stack_indirect_reference_table_test.cc')
-rw-r--r-- | runtime/stack_indirect_reference_table_test.cc | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/runtime/stack_indirect_reference_table_test.cc b/runtime/stack_indirect_reference_table_test.cc new file mode 100644 index 0000000..72ef6b6 --- /dev/null +++ b/runtime/stack_indirect_reference_table_test.cc @@ -0,0 +1,58 @@ +/* + * Copyright (C) 2014 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 "stack_indirect_reference_table.h" +#include "gtest/gtest.h" + +namespace art { + +// Test the offsets computed for members of StackIndirectReferenceTable. Because of cross-compiling +// it is impossible the use OFFSETOF_MEMBER, so we do some reasonable computations ourselves. This +// test checks whether we do the right thing. +TEST(StackIndirectReferenceTableTest, Offsets) { + // As the members of StackIndirectReferenceTable are private, we cannot use OFFSETOF_MEMBER + // here. So do the inverse: set some data, and access it through pointers created from the offsets. + + StackIndirectReferenceTable test_table(reinterpret_cast<mirror::Object*>(0x1234)); + test_table.SetLink(reinterpret_cast<StackIndirectReferenceTable*>(0x5678)); + test_table.SetNumberOfReferences(0x9ABC); + + byte* table_base_ptr = reinterpret_cast<byte*>(&test_table); + + { + uintptr_t* link_ptr = reinterpret_cast<uintptr_t*>(table_base_ptr + + StackIndirectReferenceTable::LinkOffset(kPointerSize)); + EXPECT_EQ(*link_ptr, static_cast<size_t>(0x5678)); + } + + { + uint32_t* num_ptr = reinterpret_cast<uint32_t*>(table_base_ptr + + StackIndirectReferenceTable::NumberOfReferencesOffset(kPointerSize)); + EXPECT_EQ(*num_ptr, static_cast<size_t>(0x9ABC)); + } + + { + // Assume sizeof(StackReference<mirror::Object>) == sizeof(uint32_t) + // TODO: How can we make this assumption-less but still access directly and fully? + EXPECT_EQ(sizeof(StackReference<mirror::Object>), sizeof(uint32_t)); + + uint32_t* ref_ptr = reinterpret_cast<uint32_t*>(table_base_ptr + + StackIndirectReferenceTable::ReferencesOffset(kPointerSize)); + EXPECT_EQ(*ref_ptr, static_cast<uint32_t>(0x1234)); + } +} + +} // namespace art |