6128ff6630
The getMachODefaultTextSection and getMachODefaultRWDataSection functions return the "__TEXT,__text" and "__DATA,__data" sections respectively, creating empty sections if the default sections are not already present in the graph. These functions can be used by utilities that want to add code or data to these standard sections (e.g. these functions can be used to supply the section argument to the createAnonymousPointerJumpStub and createPointerJumpStubBlock functions in the various targets).
77 lines
3.8 KiB
C++
77 lines
3.8 KiB
C++
//===-------- MachOObjectFormat.cpp -- MachO format details for ORC -------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// ORC-specific MachO object format details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/Orc/Shared/MachOObjectFormat.h"
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namespace llvm {
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namespace orc {
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StringRef MachODataCommonSectionName = "__DATA,__common";
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StringRef MachODataDataSectionName = "__DATA,__data";
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StringRef MachOEHFrameSectionName = "__TEXT,__eh_frame";
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StringRef MachOCompactUnwindInfoSectionName = "__TEXT,__unwind_info";
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StringRef MachOCStringSectionName = "__TEXT,__cstring";
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StringRef MachOModInitFuncSectionName = "__DATA,__mod_init_func";
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StringRef MachOObjCCatListSectionName = "__DATA,__objc_catlist";
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StringRef MachOObjCCatList2SectionName = "__DATA,__objc_catlist2";
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StringRef MachOObjCClassListSectionName = "__DATA,__objc_classlist";
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StringRef MachOObjCClassNameSectionName = "__TEXT,__objc_classname";
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StringRef MachOObjCClassRefsSectionName = "__DATA,__objc_classrefs";
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StringRef MachOObjCConstSectionName = "__DATA,__objc_const";
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StringRef MachOObjCDataSectionName = "__DATA,__objc_data";
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StringRef MachOObjCImageInfoSectionName = "__DATA,__objc_imageinfo";
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StringRef MachOObjCMethNameSectionName = "__TEXT,__objc_methname";
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StringRef MachOObjCMethTypeSectionName = "__TEXT,__objc_methtype";
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StringRef MachOObjCNLCatListSectionName = "__DATA,__objc_nlcatlist";
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StringRef MachOObjCNLClassListSectionName = "__DATA,__objc_nlclslist";
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StringRef MachOObjCProtoListSectionName = "__DATA,__objc_protolist";
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StringRef MachOObjCProtoRefsSectionName = "__DATA,__objc_protorefs";
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StringRef MachOObjCSelRefsSectionName = "__DATA,__objc_selrefs";
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StringRef MachOSwift5ProtoSectionName = "__TEXT,__swift5_proto";
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StringRef MachOSwift5ProtosSectionName = "__TEXT,__swift5_protos";
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StringRef MachOSwift5TypesSectionName = "__TEXT,__swift5_types";
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StringRef MachOSwift5TypeRefSectionName = "__TEXT,__swift5_typeref";
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StringRef MachOSwift5FieldMetadataSectionName = "__TEXT,__swift5_fieldmd";
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StringRef MachOSwift5EntrySectionName = "__TEXT,__swift5_entry";
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StringRef MachOTextTextSectionName = "__TEXT,__text";
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StringRef MachOThreadBSSSectionName = "__DATA,__thread_bss";
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StringRef MachOThreadDataSectionName = "__DATA,__thread_data";
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StringRef MachOThreadVarsSectionName = "__DATA,__thread_vars";
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StringRef MachOInitSectionNames[22] = {
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MachOModInitFuncSectionName, MachOObjCCatListSectionName,
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MachOObjCCatList2SectionName, MachOObjCClassListSectionName,
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MachOObjCClassNameSectionName, MachOObjCClassRefsSectionName,
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MachOObjCConstSectionName, MachOObjCDataSectionName,
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MachOObjCImageInfoSectionName, MachOObjCMethNameSectionName,
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MachOObjCMethTypeSectionName, MachOObjCNLCatListSectionName,
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MachOObjCNLClassListSectionName, MachOObjCProtoListSectionName,
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MachOObjCProtoRefsSectionName, MachOObjCSelRefsSectionName,
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MachOSwift5ProtoSectionName, MachOSwift5ProtosSectionName,
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MachOSwift5TypesSectionName, MachOSwift5TypeRefSectionName,
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MachOSwift5FieldMetadataSectionName, MachOSwift5EntrySectionName,
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};
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bool isMachOInitializerSection(StringRef SegName, StringRef SecName) {
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for (auto &InitSection : MachOInitSectionNames) {
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// Loop below assumes all MachO init sectios have a length-6
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// segment name.
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assert(InitSection[6] == ',' && "Init section seg name has length != 6");
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if (InitSection.starts_with(SegName) && InitSection.substr(7) == SecName)
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return true;
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}
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return false;
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}
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} // namespace orc
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} // namespace llvm
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