MachO::CPU_SUBTYPE_ARM64_ALL);
}
- bool doesSectionRequireSymbols(const MCSection &Section) const override {
- // Any section for which the linker breaks things into atoms needs to
- // preserve symbols, including assembler local symbols, to identify
- // those atoms. These sections are:
- // Sections of type:
- //
- // S_CSTRING_LITERALS (e.g. __cstring)
- // S_LITERAL_POINTERS (e.g. objc selector pointers)
- // S_16BYTE_LITERALS, S_8BYTE_LITERALS, S_4BYTE_LITERALS
- //
- // Sections named:
- //
- // __TEXT,__eh_frame
- // __TEXT,__ustring
- // __DATA,__cfstring
- // __DATA,__objc_classrefs
- // __DATA,__objc_catlist
- //
- // FIXME: It would be better if the compiler used actual linker local
- // symbols for each of these sections rather than preserving what
- // are ostensibly assembler local symbols.
- const MCSectionMachO &SMO = static_cast<const MCSectionMachO &>(Section);
- return (SMO.getType() == MachO::S_CSTRING_LITERALS ||
- SMO.getType() == MachO::S_4BYTE_LITERALS ||
- SMO.getType() == MachO::S_8BYTE_LITERALS ||
- SMO.getType() == MachO::S_16BYTE_LITERALS ||
- SMO.getType() == MachO::S_LITERAL_POINTERS ||
- (SMO.getSegmentName() == "__TEXT" &&
- (SMO.getSectionName() == "__eh_frame" ||
- SMO.getSectionName() == "__ustring")) ||
- (SMO.getSegmentName() == "__DATA" &&
- (SMO.getSectionName() == "__cfstring" ||
- SMO.getSectionName() == "__objc_classrefs" ||
- SMO.getSectionName() == "__objc_catlist")));
- }
-
/// \brief Generate the compact unwind encoding from the CFI directives.
uint32_t generateCompactUnwindEncoding(
ArrayRef<MCCFIInstruction> Instrs) const override {