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0a67868a13
Implement a version of addImage that takes in a closure responsible for finding the sections of interest. This allows for the registration of metadata even in situations where the object file is not complete (for example, when generated by the JIT).
100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
//===--- ObjectFile.h - Object File Related Information ------*- C++ -*-===//
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//
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// Object File related data structures.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_ABI_OBJECTFILE_H
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#define SWIFT_ABI_OBJECTFILE_H
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/ADT/StringRef.h"
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namespace swift {
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/// Represents the six reflection sections used by Swift
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enum ReflectionSectionKind : uint8_t {
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fieldmd,
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assocty,
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builtin,
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capture,
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typeref,
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reflstr
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};
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/// Abstract base class responsible for providing the correct reflection section
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/// string identifier for a given object file type (Mach-O, ELF, COFF).
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class SwiftObjectFileFormat {
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public:
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virtual ~SwiftObjectFileFormat() {}
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virtual llvm::StringRef getSectionName(ReflectionSectionKind section) = 0;
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};
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/// Responsible for providing the Mach-O reflection section identifiers.
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class SwiftObjectFileFormatMachO : public SwiftObjectFileFormat {
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public:
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llvm::StringRef getSectionName(ReflectionSectionKind section) override {
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switch (section) {
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case fieldmd:
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return "__swift5_fieldmd";
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case assocty:
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return "__swift5_assocty";
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case builtin:
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return "__swift5_builtin";
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case capture:
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return "__swift5_capture";
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case typeref:
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return "__swift5_typeref";
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case reflstr:
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return "__swift5_reflstr";
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}
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llvm_unreachable("Section type not found.");
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}
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};
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/// Responsible for providing the ELF reflection section identifiers.
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class SwiftObjectFileFormatELF : public SwiftObjectFileFormat {
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public:
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llvm::StringRef getSectionName(ReflectionSectionKind section) override {
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switch (section) {
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case fieldmd:
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return "swift5_fieldmd";
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case assocty:
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return "swift5_assocty";
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case builtin:
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return "swift5_builtin";
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case capture:
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return "swift5_capture";
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case typeref:
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return "swift5_typeref";
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case reflstr:
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return "swift5_reflstr";
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}
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llvm_unreachable("Section type not found.");
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}
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};
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/// Responsible for providing the COFF reflection section identifiers
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class SwiftObjectFileFormatCOFF : public SwiftObjectFileFormat {
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public:
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llvm::StringRef getSectionName(ReflectionSectionKind section) override {
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switch (section) {
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case fieldmd:
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return ".sw5flmd";
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case assocty:
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return ".sw5asty";
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case builtin:
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return ".sw5bltn";
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case capture:
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return ".sw5cptr";
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case typeref:
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return ".sw5tyrf";
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case reflstr:
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return ".sw5rfst";
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}
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llvm_unreachable("Section not found.");
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}
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};
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} // namespace swift
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#endif // SWIFT_ABI_OBJECTFILE_H
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