diff options
Diffstat (limited to 'compiler/linker/mips/relative_patcher_mips_test.cc')
| -rw-r--r-- | compiler/linker/mips/relative_patcher_mips_test.cc | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/compiler/linker/mips/relative_patcher_mips_test.cc b/compiler/linker/mips/relative_patcher_mips_test.cc deleted file mode 100644 index d876c76daae..00000000000 --- a/compiler/linker/mips/relative_patcher_mips_test.cc +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright (C) 2016 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 "linker/mips/relative_patcher_mips.h" - -#include "linker/relative_patcher_test.h" - -namespace art { -namespace linker { - -class MipsRelativePatcherTest : public RelativePatcherTest { - public: - MipsRelativePatcherTest() : RelativePatcherTest(InstructionSet::kMips, "mips32r2") {} - - protected: - static const uint8_t kUnpatchedPcRelativeRawCode[]; - static const uint32_t kLiteralOffsetHigh; - static const uint32_t kLiteralOffsetLow1; - static const uint32_t kLiteralOffsetLow2; - static const uint32_t kAnchorOffset; - static const ArrayRef<const uint8_t> kUnpatchedPcRelativeCode; - - uint32_t GetMethodOffset(uint32_t method_idx) { - auto result = method_offset_map_.FindMethodOffset(MethodRef(method_idx)); - CHECK(result.first); - return result.second; - } - - void CheckPcRelativePatch(const ArrayRef<const LinkerPatch>& patches, uint32_t target_offset); - void TestStringBssEntry(uint32_t bss_begin, uint32_t string_entry_offset); - void TestStringReference(uint32_t string_offset); -}; - -const uint8_t MipsRelativePatcherTest::kUnpatchedPcRelativeRawCode[] = { - 0x00, 0x00, 0x10, 0x04, // nal - 0x34, 0x12, 0x12, 0x3C, // lui s2, high(diff); placeholder = 0x1234 - 0x21, 0x90, 0x5F, 0x02, // addu s2, s2, ra - 0x78, 0x56, 0x52, 0x26, // addiu s2, s2, low(diff); placeholder = 0x5678 - 0x78, 0x56, 0x52, 0x8E, // lw s2, (low(diff))(s2) ; placeholder = 0x5678 -}; -const uint32_t MipsRelativePatcherTest::kLiteralOffsetHigh = 4; // At lui. -const uint32_t MipsRelativePatcherTest::kLiteralOffsetLow1 = 12; // At addiu. -const uint32_t MipsRelativePatcherTest::kLiteralOffsetLow2 = 16; // At lw. -const uint32_t MipsRelativePatcherTest::kAnchorOffset = 8; // At addu (where PC+0 points). -const ArrayRef<const uint8_t> MipsRelativePatcherTest::kUnpatchedPcRelativeCode( - kUnpatchedPcRelativeRawCode); - -void MipsRelativePatcherTest::CheckPcRelativePatch(const ArrayRef<const LinkerPatch>& patches, - uint32_t target_offset) { - AddCompiledMethod(MethodRef(1u), kUnpatchedPcRelativeCode, ArrayRef<const LinkerPatch>(patches)); - Link(); - - auto result = method_offset_map_.FindMethodOffset(MethodRef(1u)); - ASSERT_TRUE(result.first); - - uint32_t diff = target_offset - (result.second + kAnchorOffset); - diff += (diff & 0x8000) << 1; // Account for sign extension in addiu/lw. - - const uint8_t expected_code[] = { - 0x00, 0x00, 0x10, 0x04, - static_cast<uint8_t>(diff >> 16), static_cast<uint8_t>(diff >> 24), 0x12, 0x3C, - 0x21, 0x90, 0x5F, 0x02, - static_cast<uint8_t>(diff), static_cast<uint8_t>(diff >> 8), 0x52, 0x26, - static_cast<uint8_t>(diff), static_cast<uint8_t>(diff >> 8), 0x52, 0x8E, - }; - EXPECT_TRUE(CheckLinkedMethod(MethodRef(1u), ArrayRef<const uint8_t>(expected_code))); -} - -void MipsRelativePatcherTest::TestStringBssEntry(uint32_t bss_begin, - uint32_t string_entry_offset) { - constexpr uint32_t kStringIndex = 1u; - string_index_to_offset_map_.Put(kStringIndex, string_entry_offset); - bss_begin_ = bss_begin; - LinkerPatch patches[] = { - LinkerPatch::StringBssEntryPatch(kLiteralOffsetHigh, nullptr, kAnchorOffset, kStringIndex), - LinkerPatch::StringBssEntryPatch(kLiteralOffsetLow1, nullptr, kAnchorOffset, kStringIndex), - LinkerPatch::StringBssEntryPatch(kLiteralOffsetLow2, nullptr, kAnchorOffset, kStringIndex) - }; - CheckPcRelativePatch(ArrayRef<const LinkerPatch>(patches), bss_begin_ + string_entry_offset); -} - -void MipsRelativePatcherTest::TestStringReference(uint32_t string_offset) { - constexpr uint32_t kStringIndex = 1u; - string_index_to_offset_map_.Put(kStringIndex, string_offset); - LinkerPatch patches[] = { - LinkerPatch::RelativeStringPatch(kLiteralOffsetHigh, nullptr, kAnchorOffset, kStringIndex), - LinkerPatch::RelativeStringPatch(kLiteralOffsetLow1, nullptr, kAnchorOffset, kStringIndex), - LinkerPatch::RelativeStringPatch(kLiteralOffsetLow2, nullptr, kAnchorOffset, kStringIndex) - }; - CheckPcRelativePatch(ArrayRef<const LinkerPatch>(patches), string_offset); -} - -TEST_F(MipsRelativePatcherTest, StringBssEntry) { - TestStringBssEntry(/* bss_begin */ 0x12345678, /* string_entry_offset */ 0x1234); -} - -TEST_F(MipsRelativePatcherTest, StringReference) { - TestStringReference(/* string_offset*/ 0x87651234); -} - -} // namespace linker -} // namespace art |
