llvm::orc::OrcMips32_Base Class Reference

#include "llvm/ExecutionEngine/Orc/OrcABISupport.h"

Inheritance diagram for llvm::orc::OrcMips32_Base:

Collaboration diagram for llvm::orc::OrcMips32_Base:

Public Types
using	IndirectStubsInfo = GenericIndirectStubsInfo< 16 >
using	JITReentryFn = JITTargetAddress(*)(void *CallbackMgr, void *TrampolineId)

Static Public Member Functions
static void	writeTrampolines (uint8_t *TrampolineMem, void *ResolverAddr, unsigned NumTrampolines)
	Write the requsted number of trampolines into the given memory, which must be big enough to hold 1 pointer, plus NumTrampolines trampolines. More...
static void	writeResolverCode (uint8_t *ResolveMem, JITReentryFn Reentry, void *CallbackMgr, bool isBigEndian)
	Write the resolver code into the given memory. More...
static Error	emitIndirectStubsBlock (IndirectStubsInfo &StubsInfo, unsigned MinStubs, void *InitialPtrVal)
	Emit at least MinStubs worth of indirect call stubs, rounded out to the nearest page size. More...

Static Public Attributes
static const unsigned	PointerSize = 4
static const unsigned	TrampolineSize = 20
static const unsigned	ResolverCodeSize = 0xfc

Detailed Description

Definition at line 243 of file OrcABISupport.h.

Member Typedef Documentation

IndirectStubsInfo

using llvm::orc::OrcMips32_Base::IndirectStubsInfo = GenericIndirectStubsInfo<16>

Definition at line 248 of file OrcABISupport.h.

JITReentryFn

using llvm::orc::OrcMips32_Base::JITReentryFn = JITTargetAddress (*)(void *CallbackMgr, void *TrampolineId)

Definition at line 251 of file OrcABISupport.h.

Member Function Documentation

emitIndirectStubsBlock()

Error llvm::orc::OrcMips32_Base::emitIndirectStubsBlock ( IndirectStubsInfo &  StubsInfo, unsigned  MinStubs, void *  InitialPtrVal  )

static

Emit at least MinStubs worth of indirect call stubs, rounded out to the nearest page size.

E.g. Asking for 4 stubs on Mips32, where stubs are 8-bytes, with 4k pages will return a block of 512 stubs (4096 / 8 = 512). Asking for 513 will return a block of 1024 (2-pages worth).

Definition at line 658 of file OrcABISupport.cpp.

References llvm::sys::Memory::allocateMappedMemory(), llvm::errorCodeToError(), llvm::sys::Process::getPageSizeEstimate(), I, llvm::sys::Memory::MF_EXEC, llvm::sys::Memory::MF_READ, llvm::sys::Memory::MF_WRITE, PageSize, llvm::sys::Memory::protectMappedMemory(), llvm::orc::GenericIndirectStubsInfo< StubSizeVal >::StubSize, and llvm::Error::success().

writeResolverCode()

void llvm::orc::OrcMips32_Base::writeResolverCode ( uint8_t *  ResolveMem, JITReentryFn  Reentry, void *  CallbackMgr, bool  isBigEndian  )

static

Write the resolver code into the given memory.

The user is be responsible for allocating the memory and setting permissions.

Definition at line 539 of file OrcABISupport.cpp.

Referenced by llvm::orc::OrcMips32Le::writeResolverCode(), and llvm::orc::OrcMips32Be::writeResolverCode().

writeTrampolines()

void llvm::orc::OrcMips32_Base::writeTrampolines ( uint8_t *  TrampolineMem, void *  ResolverAddr, unsigned  NumTrampolines  )

static

Write the requsted number of trampolines into the given memory, which must be big enough to hold 1 pointer, plus NumTrampolines trampolines.

Definition at line 641 of file OrcABISupport.cpp.

References I.

Member Data Documentation

PointerSize

const unsigned llvm::orc::OrcMips32_Base::PointerSize = 4

static

Definition at line 245 of file OrcABISupport.h.

ResolverCodeSize

const unsigned llvm::orc::OrcMips32_Base::ResolverCodeSize = 0xfc

static

Definition at line 247 of file OrcABISupport.h.

TrampolineSize

const unsigned llvm::orc::OrcMips32_Base::TrampolineSize = 20

static

Definition at line 246 of file OrcABISupport.h.

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The documentation for this class was generated from the following files:

• include/llvm/ExecutionEngine/Orc/OrcABISupport.h
• lib/ExecutionEngine/Orc/OrcABISupport.cpp