From e6622be6c353c7178f34adf814c58370a51c5ed7 Mon Sep 17 00:00:00 2001 From: Serban Constantinescu Date: Thu, 27 Feb 2014 15:36:47 +0000 Subject: AArch64: Add ARM64 Disassembler This patch adds disassembler support for ARM64 based on VIXL. Change-Id: Ic7f5e197350809632145d932dbae8f6c16aebd13 Signed-off-by: Serban Constantinescu --- disassembler/Android.mk | 5 ++-- disassembler/disassembler.cc | 3 +++ disassembler/disassembler_arm64.cc | 48 ++++++++++++++++++++++++++++++++++++++ disassembler/disassembler_arm64.h | 47 +++++++++++++++++++++++++++++++++++++ 4 files changed, 101 insertions(+), 2 deletions(-) create mode 100644 disassembler/disassembler_arm64.cc create mode 100644 disassembler/disassembler_arm64.h (limited to 'disassembler') diff --git a/disassembler/Android.mk b/disassembler/Android.mk index ca08b09..56929fc 100644 --- a/disassembler/Android.mk +++ b/disassembler/Android.mk @@ -21,6 +21,7 @@ include art/build/Android.common.mk LIBART_DISASSEMBLER_SRC_FILES := \ disassembler.cc \ disassembler_arm.cc \ + disassembler_arm64.cc \ disassembler_mips.cc \ disassembler_x86.cc @@ -89,10 +90,10 @@ define build-libart-disassembler LOCAL_ADDITIONAL_DEPENDENCIES := art/build/Android.common.mk LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk ifeq ($$(art_target_or_host),target) - LOCAL_SHARED_LIBRARIES += libcutils + LOCAL_SHARED_LIBRARIES += libcutils libvixl include $(BUILD_SHARED_LIBRARY) else # host - LOCAL_STATIC_LIBRARIES += libcutils + LOCAL_STATIC_LIBRARIES += libcutils libvixl include $(BUILD_HOST_SHARED_LIBRARY) endif endef diff --git a/disassembler/disassembler.cc b/disassembler/disassembler.cc index 0670835..5c17a83 100644 --- a/disassembler/disassembler.cc +++ b/disassembler/disassembler.cc @@ -20,6 +20,7 @@ #include "base/logging.h" #include "disassembler_arm.h" +#include "disassembler_arm64.h" #include "disassembler_mips.h" #include "disassembler_x86.h" @@ -28,6 +29,8 @@ namespace art { Disassembler* Disassembler::Create(InstructionSet instruction_set) { if (instruction_set == kArm || instruction_set == kThumb2) { return new arm::DisassemblerArm(); + } else if (instruction_set == kArm64) { + return new arm64::DisassemblerArm64(); } else if (instruction_set == kMips) { return new mips::DisassemblerMips(); } else if (instruction_set == kX86) { diff --git a/disassembler/disassembler_arm64.cc b/disassembler/disassembler_arm64.cc new file mode 100644 index 0000000..864d22d --- /dev/null +++ b/disassembler/disassembler_arm64.cc @@ -0,0 +1,48 @@ +/* + * 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 "disassembler_arm64.h" + +#include + +#include + +#include "base/logging.h" +#include "base/stringprintf.h" +#include "thread.h" + +namespace art { +namespace arm64 { + +static uint32_t ReadU32(const uint8_t* ptr) { + return *((const uint32_t*)ptr); +} + +size_t DisassemblerArm64::Dump(std::ostream& os, const uint8_t* begin) { + uint32_t instruction = ReadU32(begin); + decoder.Decode(reinterpret_cast(&instruction)); + os << StringPrintf("%p: %08x\t%s\n", begin, instruction, disasm.GetOutput()); + return vixl::kInstructionSize; +} + +void DisassemblerArm64::Dump(std::ostream& os, const uint8_t* begin, const uint8_t* end) { + for (const uint8_t* cur = begin; cur < end; cur += vixl::kInstructionSize) { + Dump(os, cur); + } +} + +} // namespace arm64 +} // namespace art diff --git a/disassembler/disassembler_arm64.h b/disassembler/disassembler_arm64.h new file mode 100644 index 0000000..d759df6 --- /dev/null +++ b/disassembler/disassembler_arm64.h @@ -0,0 +1,47 @@ +/* + * 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. + */ + +#ifndef ART_DISASSEMBLER_DISASSEMBLER_ARM64_H_ +#define ART_DISASSEMBLER_DISASSEMBLER_ARM64_H_ + +#include "disassembler.h" + +#include "a64/decoder-a64.h" +#include "a64/disasm-a64.h" + +namespace art { +namespace arm64 { + +class DisassemblerArm64 : public Disassembler { + public: + DisassemblerArm64() { + decoder.AppendVisitor(&disasm); + } + + size_t Dump(std::ostream& os, const uint8_t* begin); + void Dump(std::ostream& os, const uint8_t* begin, const uint8_t* end); + + private: + vixl::Decoder decoder; + vixl::Disassembler disasm; + + DISALLOW_COPY_AND_ASSIGN(DisassemblerArm64); +}; + +} // namespace arm64 +} // namespace art + +#endif // ART_DISASSEMBLER_DISASSEMBLER_ARM64_H_ -- cgit v1.1