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9f8cb471ac
This change only treats imported and exports functions and globals as symbol table entries the object has a "linking" section (i.e. it is relocatable object file). In this case all globals must be of type I32 and initialized with i32.const. This was previously being assumed but not checked for and was causing a failure on big endian machines due to using the wrong value of then union. See: https://bugs.llvm.org/show_bug.cgi?id=34487 Differential Revision: https://reviews.llvm.org/D37497 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312674 91177308-0d34-0410-b5e6-96231b3b80d8
412 lines
13 KiB
C++
412 lines
13 KiB
C++
//===- WasmYAML.cpp - Wasm YAMLIO implementation --------------------------===//
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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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//
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// This file defines classes for handling the YAML representation of wasm.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ObjectYAML/WasmYAML.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/YAMLTraits.h"
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namespace llvm {
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namespace WasmYAML {
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// Declared here rather than in the header to comply with:
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// http://llvm.org/docs/CodingStandards.html#provide-a-virtual-method-anchor-for-classes-in-headers
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Section::~Section() = default;
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} // end namespace WasmYAML
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namespace yaml {
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void MappingTraits<WasmYAML::FileHeader>::mapping(
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IO &IO, WasmYAML::FileHeader &FileHdr) {
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IO.mapRequired("Version", FileHdr.Version);
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}
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void MappingTraits<WasmYAML::Object>::mapping(IO &IO,
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WasmYAML::Object &Object) {
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IO.setContext(&Object);
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IO.mapTag("!WASM", true);
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IO.mapRequired("FileHeader", Object.Header);
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IO.mapOptional("Sections", Object.Sections);
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IO.setContext(nullptr);
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}
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static void commonSectionMapping(IO &IO, WasmYAML::Section &Section) {
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IO.mapRequired("Type", Section.Type);
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IO.mapOptional("Relocations", Section.Relocations);
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}
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static void sectionMapping(IO &IO, WasmYAML::NameSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapRequired("Name", Section.Name);
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IO.mapOptional("FunctionNames", Section.FunctionNames);
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}
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static void sectionMapping(IO &IO, WasmYAML::LinkingSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapRequired("Name", Section.Name);
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IO.mapRequired("DataSize", Section.DataSize);
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IO.mapRequired("DataAlignment", Section.DataAlignment);
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IO.mapOptional("SymbolInfo", Section.SymbolInfos);
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}
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static void sectionMapping(IO &IO, WasmYAML::CustomSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapRequired("Name", Section.Name);
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IO.mapRequired("Payload", Section.Payload);
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}
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static void sectionMapping(IO &IO, WasmYAML::TypeSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("Signatures", Section.Signatures);
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}
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static void sectionMapping(IO &IO, WasmYAML::ImportSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("Imports", Section.Imports);
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}
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static void sectionMapping(IO &IO, WasmYAML::FunctionSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("FunctionTypes", Section.FunctionTypes);
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}
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static void sectionMapping(IO &IO, WasmYAML::TableSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("Tables", Section.Tables);
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}
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static void sectionMapping(IO &IO, WasmYAML::MemorySection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("Memories", Section.Memories);
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}
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static void sectionMapping(IO &IO, WasmYAML::GlobalSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("Globals", Section.Globals);
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}
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static void sectionMapping(IO &IO, WasmYAML::ExportSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("Exports", Section.Exports);
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}
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static void sectionMapping(IO &IO, WasmYAML::StartSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("StartFunction", Section.StartFunction);
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}
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static void sectionMapping(IO &IO, WasmYAML::ElemSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapOptional("Segments", Section.Segments);
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}
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static void sectionMapping(IO &IO, WasmYAML::CodeSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapRequired("Functions", Section.Functions);
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}
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static void sectionMapping(IO &IO, WasmYAML::DataSection &Section) {
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commonSectionMapping(IO, Section);
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IO.mapRequired("Segments", Section.Segments);
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}
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void MappingTraits<std::unique_ptr<WasmYAML::Section>>::mapping(
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IO &IO, std::unique_ptr<WasmYAML::Section> &Section) {
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WasmYAML::SectionType SectionType;
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if (IO.outputting())
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SectionType = Section->Type;
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else
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IO.mapRequired("Type", SectionType);
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switch (SectionType) {
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case wasm::WASM_SEC_CUSTOM: {
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StringRef SectionName;
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if (IO.outputting()) {
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auto CustomSection = cast<WasmYAML::CustomSection>(Section.get());
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SectionName = CustomSection->Name;
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} else {
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IO.mapRequired("Name", SectionName);
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}
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if (SectionName == "linking") {
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if (!IO.outputting())
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Section.reset(new WasmYAML::LinkingSection());
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sectionMapping(IO, *cast<WasmYAML::LinkingSection>(Section.get()));
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} else if (SectionName == "name") {
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if (!IO.outputting())
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Section.reset(new WasmYAML::NameSection());
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sectionMapping(IO, *cast<WasmYAML::NameSection>(Section.get()));
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} else {
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if (!IO.outputting())
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Section.reset(new WasmYAML::CustomSection(SectionName));
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sectionMapping(IO, *cast<WasmYAML::CustomSection>(Section.get()));
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}
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break;
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}
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case wasm::WASM_SEC_TYPE:
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if (!IO.outputting())
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Section.reset(new WasmYAML::TypeSection());
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sectionMapping(IO, *cast<WasmYAML::TypeSection>(Section.get()));
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break;
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case wasm::WASM_SEC_IMPORT:
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if (!IO.outputting())
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Section.reset(new WasmYAML::ImportSection());
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sectionMapping(IO, *cast<WasmYAML::ImportSection>(Section.get()));
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break;
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case wasm::WASM_SEC_FUNCTION:
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if (!IO.outputting())
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Section.reset(new WasmYAML::FunctionSection());
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sectionMapping(IO, *cast<WasmYAML::FunctionSection>(Section.get()));
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break;
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case wasm::WASM_SEC_TABLE:
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if (!IO.outputting())
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Section.reset(new WasmYAML::TableSection());
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sectionMapping(IO, *cast<WasmYAML::TableSection>(Section.get()));
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break;
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case wasm::WASM_SEC_MEMORY:
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if (!IO.outputting())
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Section.reset(new WasmYAML::MemorySection());
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sectionMapping(IO, *cast<WasmYAML::MemorySection>(Section.get()));
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break;
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case wasm::WASM_SEC_GLOBAL:
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if (!IO.outputting())
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Section.reset(new WasmYAML::GlobalSection());
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sectionMapping(IO, *cast<WasmYAML::GlobalSection>(Section.get()));
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break;
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case wasm::WASM_SEC_EXPORT:
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if (!IO.outputting())
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Section.reset(new WasmYAML::ExportSection());
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sectionMapping(IO, *cast<WasmYAML::ExportSection>(Section.get()));
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break;
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case wasm::WASM_SEC_START:
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if (!IO.outputting())
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Section.reset(new WasmYAML::StartSection());
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sectionMapping(IO, *cast<WasmYAML::StartSection>(Section.get()));
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break;
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case wasm::WASM_SEC_ELEM:
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if (!IO.outputting())
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Section.reset(new WasmYAML::ElemSection());
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sectionMapping(IO, *cast<WasmYAML::ElemSection>(Section.get()));
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break;
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case wasm::WASM_SEC_CODE:
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if (!IO.outputting())
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Section.reset(new WasmYAML::CodeSection());
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sectionMapping(IO, *cast<WasmYAML::CodeSection>(Section.get()));
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break;
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case wasm::WASM_SEC_DATA:
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if (!IO.outputting())
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Section.reset(new WasmYAML::DataSection());
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sectionMapping(IO, *cast<WasmYAML::DataSection>(Section.get()));
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break;
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default:
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llvm_unreachable("Unknown section type");
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}
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}
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void ScalarEnumerationTraits<WasmYAML::SectionType>::enumeration(
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IO &IO, WasmYAML::SectionType &Type) {
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#define ECase(X) IO.enumCase(Type, #X, wasm::WASM_SEC_##X);
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ECase(CUSTOM);
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ECase(TYPE);
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ECase(IMPORT);
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ECase(FUNCTION);
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ECase(TABLE);
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ECase(MEMORY);
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ECase(GLOBAL);
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ECase(EXPORT);
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ECase(START);
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ECase(ELEM);
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ECase(CODE);
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ECase(DATA);
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#undef ECase
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}
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void MappingTraits<WasmYAML::Signature>::mapping(
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IO &IO, WasmYAML::Signature &Signature) {
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IO.mapOptional("Index", Signature.Index);
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IO.mapRequired("ReturnType", Signature.ReturnType);
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IO.mapRequired("ParamTypes", Signature.ParamTypes);
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}
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void MappingTraits<WasmYAML::Table>::mapping(IO &IO, WasmYAML::Table &Table) {
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IO.mapRequired("ElemType", Table.ElemType);
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IO.mapRequired("Limits", Table.TableLimits);
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}
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void MappingTraits<WasmYAML::Function>::mapping(IO &IO,
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WasmYAML::Function &Function) {
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IO.mapRequired("Locals", Function.Locals);
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IO.mapRequired("Body", Function.Body);
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}
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void MappingTraits<WasmYAML::Relocation>::mapping(
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IO &IO, WasmYAML::Relocation &Relocation) {
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IO.mapRequired("Type", Relocation.Type);
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IO.mapRequired("Index", Relocation.Index);
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IO.mapRequired("Offset", Relocation.Offset);
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IO.mapOptional("Addend", Relocation.Addend, 0);
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}
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void MappingTraits<WasmYAML::NameEntry>::mapping(
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IO &IO, WasmYAML::NameEntry &NameEntry) {
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IO.mapRequired("Index", NameEntry.Index);
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IO.mapRequired("Name", NameEntry.Name);
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}
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void MappingTraits<WasmYAML::LocalDecl>::mapping(
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IO &IO, WasmYAML::LocalDecl &LocalDecl) {
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IO.mapRequired("Type", LocalDecl.Type);
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IO.mapRequired("Count", LocalDecl.Count);
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}
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void MappingTraits<WasmYAML::Limits>::mapping(IO &IO,
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WasmYAML::Limits &Limits) {
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if (!IO.outputting() || Limits.Flags)
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IO.mapOptional("Flags", Limits.Flags);
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IO.mapRequired("Initial", Limits.Initial);
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if (!IO.outputting() || Limits.Flags & wasm::WASM_LIMITS_FLAG_HAS_MAX)
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IO.mapOptional("Maximum", Limits.Maximum);
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}
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void MappingTraits<WasmYAML::ElemSegment>::mapping(
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IO &IO, WasmYAML::ElemSegment &Segment) {
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IO.mapRequired("Offset", Segment.Offset);
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IO.mapRequired("Functions", Segment.Functions);
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}
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void MappingTraits<WasmYAML::Import>::mapping(IO &IO,
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WasmYAML::Import &Import) {
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IO.mapRequired("Module", Import.Module);
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IO.mapRequired("Field", Import.Field);
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IO.mapRequired("Kind", Import.Kind);
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if (Import.Kind == wasm::WASM_EXTERNAL_FUNCTION) {
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IO.mapRequired("SigIndex", Import.SigIndex);
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} else if (Import.Kind == wasm::WASM_EXTERNAL_GLOBAL) {
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IO.mapRequired("GlobalType", Import.GlobalImport.Type);
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IO.mapRequired("GlobalMutable", Import.GlobalImport.Mutable);
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} else if (Import.Kind == wasm::WASM_EXTERNAL_TABLE) {
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IO.mapRequired("Table", Import.TableImport);
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} else if (Import.Kind == wasm::WASM_EXTERNAL_MEMORY ) {
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IO.mapRequired("Memory", Import.Memory);
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} else {
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llvm_unreachable("unhandled import type");
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}
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}
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void MappingTraits<WasmYAML::Export>::mapping(IO &IO,
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WasmYAML::Export &Export) {
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IO.mapRequired("Name", Export.Name);
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IO.mapRequired("Kind", Export.Kind);
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IO.mapRequired("Index", Export.Index);
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}
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void MappingTraits<WasmYAML::Global>::mapping(IO &IO,
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WasmYAML::Global &Global) {
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IO.mapRequired("Type", Global.Type);
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IO.mapRequired("Mutable", Global.Mutable);
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IO.mapRequired("InitExpr", Global.InitExpr);
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}
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void MappingTraits<wasm::WasmInitExpr>::mapping(IO &IO,
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wasm::WasmInitExpr &Expr) {
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WasmYAML::Opcode Op = Expr.Opcode;
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IO.mapRequired("Opcode", Op);
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Expr.Opcode = Op;
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switch (Expr.Opcode) {
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case wasm::WASM_OPCODE_I32_CONST:
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IO.mapRequired("Value", Expr.Value.Int32);
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break;
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case wasm::WASM_OPCODE_I64_CONST:
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IO.mapRequired("Value", Expr.Value.Int64);
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break;
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case wasm::WASM_OPCODE_F32_CONST:
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IO.mapRequired("Value", Expr.Value.Float32);
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break;
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case wasm::WASM_OPCODE_F64_CONST:
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IO.mapRequired("Value", Expr.Value.Float64);
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break;
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case wasm::WASM_OPCODE_GET_GLOBAL:
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IO.mapRequired("Index", Expr.Value.Global);
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break;
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}
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}
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void MappingTraits<WasmYAML::DataSegment>::mapping(
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IO &IO, WasmYAML::DataSegment &Segment) {
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IO.mapOptional("SectionOffset", Segment.SectionOffset);
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IO.mapRequired("MemoryIndex", Segment.MemoryIndex);
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IO.mapRequired("Offset", Segment.Offset);
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IO.mapRequired("Content", Segment.Content);
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}
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void MappingTraits<WasmYAML::SymbolInfo>::mapping(IO &IO,
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WasmYAML::SymbolInfo &Info) {
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IO.mapRequired("Name", Info.Name);
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IO.mapRequired("Flags", Info.Flags);
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}
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void ScalarEnumerationTraits<WasmYAML::ValueType>::enumeration(
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IO &IO, WasmYAML::ValueType &Type) {
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#define ECase(X) IO.enumCase(Type, #X, wasm::WASM_TYPE_##X);
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ECase(I32);
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ECase(I64);
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ECase(F32);
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ECase(F64);
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ECase(ANYFUNC);
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ECase(FUNC);
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ECase(NORESULT);
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#undef ECase
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}
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void ScalarEnumerationTraits<WasmYAML::ExportKind>::enumeration(
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IO &IO, WasmYAML::ExportKind &Kind) {
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#define ECase(X) IO.enumCase(Kind, #X, wasm::WASM_EXTERNAL_##X);
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ECase(FUNCTION);
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ECase(TABLE);
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ECase(MEMORY);
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ECase(GLOBAL);
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#undef ECase
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}
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void ScalarEnumerationTraits<WasmYAML::Opcode>::enumeration(
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IO &IO, WasmYAML::Opcode &Code) {
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#define ECase(X) IO.enumCase(Code, #X, wasm::WASM_OPCODE_##X);
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ECase(END);
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ECase(I32_CONST);
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ECase(I64_CONST);
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ECase(F64_CONST);
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ECase(F32_CONST);
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ECase(GET_GLOBAL);
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#undef ECase
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}
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void ScalarEnumerationTraits<WasmYAML::TableType>::enumeration(
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IO &IO, WasmYAML::TableType &Type) {
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#define ECase(X) IO.enumCase(Type, #X, wasm::WASM_TYPE_##X);
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ECase(ANYFUNC);
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#undef ECase
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}
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void ScalarEnumerationTraits<WasmYAML::RelocType>::enumeration(
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IO &IO, WasmYAML::RelocType &Type) {
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#define WASM_RELOC(name, value) IO.enumCase(Type, #name, wasm::name);
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#include "llvm/BinaryFormat/WasmRelocs/WebAssembly.def"
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#undef WASM_RELOC
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}
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} // end namespace yaml
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} // end namespace llvm
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