Synopsis
Declared in <llvm/Target/TargetLoweringObjectFile.h>
class TargetLoweringObjectFile
: public MCObjectFileInfoBase Classes
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Description |
Member Functions
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Description |
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Constructors |
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Destructor |
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Copy assignment operator |
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This method must be called before any actual lowering is done. This specifies the current context for codegen, and gives the lowering implementations a chance to set up their default sections. |
This method computes the appropriate section to emit the specified global variable or function definition. This should not be passed external (or available externally) globals. |
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Emit Call Graph Profile metadata. |
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Process linker options metadata and emit platform‐specific bits. |
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Emit the module‐level metadata that the platform cares about. |
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Emit pseudo_probe_desc metadata. |
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Create a symbol reference to describe the given TLS variable when emitting the address in debug info. |
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Targets should implement this method to assign a section to globals with an explicit section specfied. The implementation of this method can assume that GO‐>hasSection() is true. |
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If supported, return the function entry point symbol. Otherwise, returns nullptr. Func must be a function or an alias which has a function as base object. |
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Get the target specific PC relative GOT entry relocation |
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Get the target specific RWPI relocation. |
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Get the module‐level metadata that the platform cares about. |
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If supported, return the section to use for the llvm.commandline metadata. Otherwise, return nullptr. |
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On targets that associate external references with a section, return such a section for the given external global. |
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On targets that use separate function descriptor symbols, return a section for the descriptor given its symbol. Use only with defined functions. |
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On targets that support TOC entries, return a section for the entry given the symbol it refers to. TODO: Implement this interface for existing ELF targets. |
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Returns the register used as static base in RWPI variants. |
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Return the MCSymbol for a private symbol with global value name as its base, with the specified suffix. |
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Return an MCExpr to use for a reference to the specified global variable from exception handling information. |
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Targets that have a special convention for their symbols could use this hook to return a specialized symbol. |
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Target supports a PC‐relative relocation that references the PLT of a function. |
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Target supports TLS offset relocation in debug section? |
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Target GOT "PC"‐relative relocation supports encoding an additional binary expression with an offset? |
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Target supports replacing a data "PC"‐relative access to a symbol through another symbol, by accessing the later via a GOT entry instead? |
Static Member Functions
Name |
Description |
Return the section name specified by '#pragma clang section' or the section attribute. |
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Classify the specified global variable into a set of target independent categories embodied in SectionKind. |
Protected Member Functions
Name |
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Protected Data Members
Name |
Description |
Section that is default initialized to zero. |
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Section containing call graph metadata. |
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Compact unwind encoding indicating that we should emit only an EH frame. |
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If exception handling is supported by the target and the target can support a compact representation of the CIE and FDE, this is the section to emit them into. |
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Section directive for standard data. |
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COFF specific sections. |
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Accelerator table sections. DwarfDebugNamesSection is the DWARF v5 accelerator table, while DwarfAccelNamesSection, DwarfAccelObjCSection, DwarfAccelNamespaceSection, DwarfAccelTypesSection are pre‐DWARF v5 extensions. |
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Section for newer gnu pubnames. |
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Section for newer gnu pubtypes. |
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The DWARF v5 locations list section. |
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The DWARF v5 range and location list sections for fission. |
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The DWARF v5 range list section. |
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The DWARF v5 string offset and address table sections. |
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EH frame section. |
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FDE CFI encoding. Controls the encoding of the begin label in the .eh_frame section. Unlike the LSDA encoding, personality encoding, and type encodings, this is something that the assembler just "knows" about its target |
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FaultMap section. |
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If import call optimization is supported by the target, this is the section to emit import call data to. |
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If exception handling is supported by the target, this is the section the Language Specific Data Area information is emitted to. |
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OmitDwarfIfHaveCompactUnwind ‐ True if the target object file supports having some functions with compact unwind and other with dwarf unwind. |
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PersonalityEncoding, LSDAEncoding, TTypeEncoding ‐ Some encoding values for EH. |
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Section for pseudo probe information used by AutoFDO |
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Section that is readonly and can contain arbitrary initialized data. Targets are not required to have a readonly section. If they don't, various bits of code will fall back to using the data section for constants. |
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Remarks section. |
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SFrame ABI architecture byte. |
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SFrame section. |
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StackMap section. |
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Section containing metadata on function stack sizes. |
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This section contains the static constructor pointer list. |
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This section contains the static destructor pointer list. |
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True if the target object file supports emitting a compact unwind section without an associated EH frame section. |
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Section directive for Thread Local uninitialized data. |
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Section directive for Thread Local data. ELF, MachO, COFF, and Wasm. |
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Extra TLS Variable Data section. |
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Section for thread local structure information. |
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Section for thread local data initialization functions. |
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Section directive for standard text. |
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