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d6d6b83a0b
Summary: Revert [ARM] Fix ubig32_t read in ARMAttributeParser Now using support functions to read data instead of trying to perform casts. =========================================================== Revert [ARM] Enable objdump to construct triple for ARM Now that The ARMAttributeParser has been moved into the library, it has been modified so that it can parse the attributes without printing them and stores them in a map. ELFObjectFile now queries the attributes to fill out the architecture details of a provided triple for 'arm' and 'thumb' targets. llvm-objdump uses this new functionality. Subscribers: llvm-commits, samparker, aemerson, mgorny Differential Revision: https://reviews.llvm.org/D28683 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291911 91177308-0d34-0410-b5e6-96231b3b80d8
683 lines
23 KiB
C++
683 lines
23 KiB
C++
//===--- ARMAttributeParser.cpp - ARM Attribute Information Printer -------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/Support/ARMAttributeParser.h"
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#include "llvm/Support/LEB128.h"
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#include "llvm/Support/ScopedPrinter.h"
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using namespace llvm;
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using namespace llvm::ARMBuildAttrs;
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static const EnumEntry<unsigned> TagNames[] = {
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{ "Tag_File", ARMBuildAttrs::File },
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{ "Tag_Section", ARMBuildAttrs::Section },
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{ "Tag_Symbol", ARMBuildAttrs::Symbol },
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};
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namespace llvm {
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#define ATTRIBUTE_HANDLER(Attr_) \
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{ ARMBuildAttrs::Attr_, &ARMAttributeParser::Attr_ }
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const ARMAttributeParser::DisplayHandler
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ARMAttributeParser::DisplayRoutines[] = {
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{ ARMBuildAttrs::CPU_raw_name, &ARMAttributeParser::StringAttribute, },
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{ ARMBuildAttrs::CPU_name, &ARMAttributeParser::StringAttribute },
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ATTRIBUTE_HANDLER(CPU_arch),
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ATTRIBUTE_HANDLER(CPU_arch_profile),
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ATTRIBUTE_HANDLER(ARM_ISA_use),
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ATTRIBUTE_HANDLER(THUMB_ISA_use),
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ATTRIBUTE_HANDLER(FP_arch),
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ATTRIBUTE_HANDLER(WMMX_arch),
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ATTRIBUTE_HANDLER(Advanced_SIMD_arch),
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ATTRIBUTE_HANDLER(PCS_config),
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ATTRIBUTE_HANDLER(ABI_PCS_R9_use),
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ATTRIBUTE_HANDLER(ABI_PCS_RW_data),
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ATTRIBUTE_HANDLER(ABI_PCS_RO_data),
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ATTRIBUTE_HANDLER(ABI_PCS_GOT_use),
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ATTRIBUTE_HANDLER(ABI_PCS_wchar_t),
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ATTRIBUTE_HANDLER(ABI_FP_rounding),
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ATTRIBUTE_HANDLER(ABI_FP_denormal),
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ATTRIBUTE_HANDLER(ABI_FP_exceptions),
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ATTRIBUTE_HANDLER(ABI_FP_user_exceptions),
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ATTRIBUTE_HANDLER(ABI_FP_number_model),
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ATTRIBUTE_HANDLER(ABI_align_needed),
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ATTRIBUTE_HANDLER(ABI_align_preserved),
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ATTRIBUTE_HANDLER(ABI_enum_size),
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ATTRIBUTE_HANDLER(ABI_HardFP_use),
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ATTRIBUTE_HANDLER(ABI_VFP_args),
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ATTRIBUTE_HANDLER(ABI_WMMX_args),
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ATTRIBUTE_HANDLER(ABI_optimization_goals),
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ATTRIBUTE_HANDLER(ABI_FP_optimization_goals),
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ATTRIBUTE_HANDLER(compatibility),
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ATTRIBUTE_HANDLER(CPU_unaligned_access),
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ATTRIBUTE_HANDLER(FP_HP_extension),
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ATTRIBUTE_HANDLER(ABI_FP_16bit_format),
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ATTRIBUTE_HANDLER(MPextension_use),
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ATTRIBUTE_HANDLER(DIV_use),
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ATTRIBUTE_HANDLER(DSP_extension),
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ATTRIBUTE_HANDLER(T2EE_use),
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ATTRIBUTE_HANDLER(Virtualization_use),
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ATTRIBUTE_HANDLER(nodefaults)
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};
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#undef ATTRIBUTE_HANDLER
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uint64_t ARMAttributeParser::ParseInteger(const uint8_t *Data,
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uint32_t &Offset) {
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unsigned Length;
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uint64_t Value = decodeULEB128(Data + Offset, &Length);
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Offset = Offset + Length;
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return Value;
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}
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StringRef ARMAttributeParser::ParseString(const uint8_t *Data,
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uint32_t &Offset) {
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const char *String = reinterpret_cast<const char*>(Data + Offset);
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size_t Length = std::strlen(String);
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Offset = Offset + Length + 1;
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return StringRef(String, Length);
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}
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void ARMAttributeParser::IntegerAttribute(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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SW.printNumber(ARMBuildAttrs::AttrTypeAsString(Tag),
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ParseInteger(Data, Offset));
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}
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void ARMAttributeParser::StringAttribute(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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StringRef TagName = ARMBuildAttrs::AttrTypeAsString(Tag, /*TagPrefix*/false);
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DictScope AS(SW, "Attribute");
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SW.printNumber("Tag", Tag);
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if (!TagName.empty())
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SW.printString("TagName", TagName);
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SW.printString("Value", ParseString(Data, Offset));
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}
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void ARMAttributeParser::PrintAttribute(unsigned Tag, unsigned Value,
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StringRef ValueDesc) {
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StringRef TagName = ARMBuildAttrs::AttrTypeAsString(Tag, /*TagPrefix*/false);
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DictScope AS(SW, "Attribute");
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SW.printNumber("Tag", Tag);
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SW.printNumber("Value", Value);
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if (!TagName.empty())
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SW.printString("TagName", TagName);
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if (!ValueDesc.empty())
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SW.printString("Description", ValueDesc);
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}
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void ARMAttributeParser::CPU_arch(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Pre-v4", "ARM v4", "ARM v4T", "ARM v5T", "ARM v5TE", "ARM v5TEJ", "ARM v6",
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"ARM v6KZ", "ARM v6T2", "ARM v6K", "ARM v7", "ARM v6-M", "ARM v6S-M",
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"ARM v7E-M", "ARM v8"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::CPU_arch_profile(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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uint64_t Encoded = ParseInteger(Data, Offset);
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StringRef Profile;
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switch (Encoded) {
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default: Profile = "Unknown"; break;
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case 'A': Profile = "Application"; break;
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case 'R': Profile = "Real-time"; break;
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case 'M': Profile = "Microcontroller"; break;
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case 'S': Profile = "Classic"; break;
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case 0: Profile = "None"; break;
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}
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PrintAttribute(Tag, Encoded, Profile);
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}
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void ARMAttributeParser::ARM_ISA_use(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = { "Not Permitted", "Permitted" };
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::THUMB_ISA_use(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = { "Not Permitted", "Thumb-1", "Thumb-2" };
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::FP_arch(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Not Permitted", "VFPv1", "VFPv2", "VFPv3", "VFPv3-D16", "VFPv4",
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"VFPv4-D16", "ARMv8-a FP", "ARMv8-a FP-D16"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::WMMX_arch(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = { "Not Permitted", "WMMXv1", "WMMXv2" };
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::Advanced_SIMD_arch(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Not Permitted", "NEONv1", "NEONv2+FMA", "ARMv8-a NEON", "ARMv8.1-a NEON"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::PCS_config(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"None", "Bare Platform", "Linux Application", "Linux DSO", "Palm OS 2004",
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"Reserved (Palm OS)", "Symbian OS 2004", "Reserved (Symbian OS)"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_PCS_R9_use(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = { "v6", "Static Base", "TLS", "Unused" };
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_PCS_RW_data(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Absolute", "PC-relative", "SB-relative", "Not Permitted"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_PCS_RO_data(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Absolute", "PC-relative", "Not Permitted"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_PCS_GOT_use(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Not Permitted", "Direct", "GOT-Indirect"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_PCS_wchar_t(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Not Permitted", "Unknown", "2-byte", "Unknown", "4-byte"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_FP_rounding(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = { "IEEE-754", "Runtime" };
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_FP_denormal(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Unsupported", "IEEE-754", "Sign Only"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_FP_exceptions(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = { "Not Permitted", "IEEE-754" };
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_FP_user_exceptions(AttrType Tag,
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const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = { "Not Permitted", "IEEE-754" };
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_FP_number_model(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Not Permitted", "Finite Only", "RTABI", "IEEE-754"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_align_needed(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Not Permitted", "8-byte alignment", "4-byte alignment", "Reserved"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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std::string Description;
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if (Value < array_lengthof(Strings))
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Description = std::string(Strings[Value]);
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else if (Value <= 12)
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Description = std::string("8-byte alignment, ") + utostr(1ULL << Value)
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+ std::string("-byte extended alignment");
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else
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Description = "Invalid";
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PrintAttribute(Tag, Value, Description);
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}
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void ARMAttributeParser::ABI_align_preserved(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Not Required", "8-byte data alignment", "8-byte data and code alignment",
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"Reserved"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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std::string Description;
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if (Value < array_lengthof(Strings))
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Description = std::string(Strings[Value]);
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else if (Value <= 12)
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Description = std::string("8-byte stack alignment, ") +
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utostr(1ULL << Value) + std::string("-byte data alignment");
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else
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Description = "Invalid";
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PrintAttribute(Tag, Value, Description);
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}
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void ARMAttributeParser::ABI_enum_size(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Not Permitted", "Packed", "Int32", "External Int32"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_HardFP_use(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"Tag_FP_arch", "Single-Precision", "Reserved", "Tag_FP_arch (deprecated)"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_VFP_args(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"AAPCS", "AAPCS VFP", "Custom", "Not Permitted"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_WMMX_args(AttrType Tag, const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = { "AAPCS", "iWMMX", "Custom" };
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_optimization_goals(AttrType Tag,
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const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"None", "Speed", "Aggressive Speed", "Size", "Aggressive Size", "Debugging",
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"Best Debugging"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::ABI_FP_optimization_goals(AttrType Tag,
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const uint8_t *Data,
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uint32_t &Offset) {
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static const char *const Strings[] = {
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"None", "Speed", "Aggressive Speed", "Size", "Aggressive Size", "Accuracy",
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"Best Accuracy"
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};
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uint64_t Value = ParseInteger(Data, Offset);
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StringRef ValueDesc =
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(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
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PrintAttribute(Tag, Value, ValueDesc);
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}
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void ARMAttributeParser::compatibility(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
uint64_t Integer = ParseInteger(Data, Offset);
|
|
StringRef String = ParseString(Data, Offset);
|
|
|
|
DictScope AS(SW, "Attribute");
|
|
SW.printNumber("Tag", Tag);
|
|
SW.startLine() << "Value: " << Integer << ", " << String << '\n';
|
|
SW.printString("TagName", AttrTypeAsString(Tag, /*TagPrefix*/false));
|
|
switch (Integer) {
|
|
case 0:
|
|
SW.printString("Description", StringRef("No Specific Requirements"));
|
|
break;
|
|
case 1:
|
|
SW.printString("Description", StringRef("AEABI Conformant"));
|
|
break;
|
|
default:
|
|
SW.printString("Description", StringRef("AEABI Non-Conformant"));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void ARMAttributeParser::CPU_unaligned_access(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
static const char *const Strings[] = { "Not Permitted", "v6-style" };
|
|
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
StringRef ValueDesc =
|
|
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
|
|
PrintAttribute(Tag, Value, ValueDesc);
|
|
}
|
|
|
|
void ARMAttributeParser::FP_HP_extension(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
static const char *const Strings[] = { "If Available", "Permitted" };
|
|
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
StringRef ValueDesc =
|
|
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
|
|
PrintAttribute(Tag, Value, ValueDesc);
|
|
}
|
|
|
|
void ARMAttributeParser::ABI_FP_16bit_format(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
static const char *const Strings[] = { "Not Permitted", "IEEE-754", "VFPv3" };
|
|
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
StringRef ValueDesc =
|
|
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
|
|
PrintAttribute(Tag, Value, ValueDesc);
|
|
}
|
|
|
|
void ARMAttributeParser::MPextension_use(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
static const char *const Strings[] = { "Not Permitted", "Permitted" };
|
|
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
StringRef ValueDesc =
|
|
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
|
|
PrintAttribute(Tag, Value, ValueDesc);
|
|
}
|
|
|
|
void ARMAttributeParser::DIV_use(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
static const char *const Strings[] = {
|
|
"If Available", "Not Permitted", "Permitted"
|
|
};
|
|
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
StringRef ValueDesc =
|
|
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
|
|
PrintAttribute(Tag, Value, ValueDesc);
|
|
}
|
|
|
|
void ARMAttributeParser::DSP_extension(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
static const char *const Strings[] = { "Not Permitted", "Permitted" };
|
|
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
StringRef ValueDesc =
|
|
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
|
|
PrintAttribute(Tag, Value, ValueDesc);
|
|
}
|
|
|
|
void ARMAttributeParser::T2EE_use(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
static const char *const Strings[] = { "Not Permitted", "Permitted" };
|
|
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
StringRef ValueDesc =
|
|
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
|
|
PrintAttribute(Tag, Value, ValueDesc);
|
|
}
|
|
|
|
void ARMAttributeParser::Virtualization_use(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
static const char *const Strings[] = {
|
|
"Not Permitted", "TrustZone", "Virtualization Extensions",
|
|
"TrustZone + Virtualization Extensions"
|
|
};
|
|
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
StringRef ValueDesc =
|
|
(Value < array_lengthof(Strings)) ? Strings[Value] : nullptr;
|
|
PrintAttribute(Tag, Value, ValueDesc);
|
|
}
|
|
|
|
void ARMAttributeParser::nodefaults(AttrType Tag, const uint8_t *Data,
|
|
uint32_t &Offset) {
|
|
uint64_t Value = ParseInteger(Data, Offset);
|
|
PrintAttribute(Tag, Value, "Unspecified Tags UNDEFINED");
|
|
}
|
|
|
|
void ARMAttributeParser::ParseIndexList(const uint8_t *Data, uint32_t &Offset,
|
|
SmallVectorImpl<uint8_t> &IndexList) {
|
|
for (;;) {
|
|
unsigned Length;
|
|
uint64_t Value = decodeULEB128(Data + Offset, &Length);
|
|
Offset = Offset + Length;
|
|
if (Value == 0)
|
|
break;
|
|
IndexList.push_back(Value);
|
|
}
|
|
}
|
|
|
|
void ARMAttributeParser::ParseAttributeList(const uint8_t *Data,
|
|
uint32_t &Offset, uint32_t Length) {
|
|
while (Offset < Length) {
|
|
unsigned Length;
|
|
uint64_t Tag = decodeULEB128(Data + Offset, &Length);
|
|
Offset += Length;
|
|
|
|
bool Handled = false;
|
|
for (unsigned AHI = 0, AHE = array_lengthof(DisplayRoutines);
|
|
AHI != AHE && !Handled; ++AHI) {
|
|
if (DisplayRoutines[AHI].Attribute == Tag) {
|
|
(this->*DisplayRoutines[AHI].Routine)(ARMBuildAttrs::AttrType(Tag),
|
|
Data, Offset);
|
|
Handled = true;
|
|
break;
|
|
}
|
|
}
|
|
if (!Handled) {
|
|
if (Tag < 32) {
|
|
errs() << "unhandled AEABI Tag " << Tag
|
|
<< " (" << ARMBuildAttrs::AttrTypeAsString(Tag) << ")\n";
|
|
continue;
|
|
}
|
|
|
|
if (Tag % 2 == 0)
|
|
IntegerAttribute(ARMBuildAttrs::AttrType(Tag), Data, Offset);
|
|
else
|
|
StringAttribute(ARMBuildAttrs::AttrType(Tag), Data, Offset);
|
|
}
|
|
}
|
|
}
|
|
|
|
void ARMAttributeParser::ParseSubsection(const uint8_t *Data, uint32_t Length) {
|
|
uint32_t Offset = sizeof(uint32_t); /* SectionLength */
|
|
|
|
SW.printNumber("SectionLength", Length);
|
|
|
|
const char *VendorName = reinterpret_cast<const char*>(Data + Offset);
|
|
size_t VendorNameLength = std::strlen(VendorName);
|
|
SW.printString("Vendor", StringRef(VendorName, VendorNameLength));
|
|
Offset = Offset + VendorNameLength + 1;
|
|
|
|
if (StringRef(VendorName, VendorNameLength).lower() != "aeabi")
|
|
return;
|
|
|
|
while (Offset < Length) {
|
|
/// Tag_File | Tag_Section | Tag_Symbol uleb128:byte-size
|
|
uint8_t Tag = Data[Offset];
|
|
SW.printEnum("Tag", Tag, makeArrayRef(TagNames));
|
|
Offset = Offset + sizeof(Tag);
|
|
|
|
uint32_t Size =
|
|
*reinterpret_cast<const support::ulittle32_t*>(Data + Offset);
|
|
SW.printNumber("Size", Size);
|
|
Offset = Offset + sizeof(Size);
|
|
|
|
if (Size > Length) {
|
|
errs() << "subsection length greater than section length\n";
|
|
return;
|
|
}
|
|
|
|
StringRef ScopeName, IndexName;
|
|
SmallVector<uint8_t, 8> Indicies;
|
|
switch (Tag) {
|
|
case ARMBuildAttrs::File:
|
|
ScopeName = "FileAttributes";
|
|
break;
|
|
case ARMBuildAttrs::Section:
|
|
ScopeName = "SectionAttributes";
|
|
IndexName = "Sections";
|
|
ParseIndexList(Data, Offset, Indicies);
|
|
break;
|
|
case ARMBuildAttrs::Symbol:
|
|
ScopeName = "SymbolAttributes";
|
|
IndexName = "Symbols";
|
|
ParseIndexList(Data, Offset, Indicies);
|
|
break;
|
|
default:
|
|
errs() << "unrecognised tag: 0x" << utohexstr(Tag) << '\n';
|
|
return;
|
|
}
|
|
|
|
DictScope ASS(SW, ScopeName);
|
|
|
|
if (!Indicies.empty())
|
|
SW.printList(IndexName, Indicies);
|
|
|
|
ParseAttributeList(Data, Offset, Length);
|
|
}
|
|
}
|
|
|
|
void ARMAttributeParser::Parse(ArrayRef<uint8_t> Section) {
|
|
size_t Offset = 1;
|
|
unsigned SectionNumber = 0;
|
|
|
|
while (Offset < Section.size()) {
|
|
uint32_t SectionLength =
|
|
*reinterpret_cast<const support::ulittle32_t*>(Section.data() + Offset);
|
|
|
|
SW.startLine() << "Section " << ++SectionNumber << " {\n";
|
|
SW.indent();
|
|
|
|
ParseSubsection(Section.data() + Offset, SectionLength);
|
|
Offset = Offset + SectionLength;
|
|
|
|
SW.unindent();
|
|
SW.startLine() << "}\n";
|
|
}
|
|
}
|
|
}
|
|
|