-//===- X86JITInfo.h - X86 implementation of the JIT interface --*- C++ -*-===//
+//===-- X86JITInfo.h - X86 implementation of the JIT interface --*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#ifndef X86JITINFO_H
#define X86JITINFO_H
+#include "llvm/CodeGen/JITCodeEmitter.h"
+#include "llvm/IR/Function.h"
#include "llvm/Target/TargetJITInfo.h"
namespace llvm {
class X86TargetMachine;
+ class X86Subtarget;
class X86JITInfo : public TargetJITInfo {
X86TargetMachine &TM;
+ const X86Subtarget *Subtarget;
+ uintptr_t PICBase;
+ char* TLSOffset;
public:
- X86JITInfo(X86TargetMachine &tm) : TM(tm) {useGOT = 0;}
+ explicit X86JITInfo(X86TargetMachine &tm);
/// replaceMachineCodeForFunction - Make it so that calling the function
/// whose machine code is at OLD turns into a call to NEW, perhaps by
/// overwriting OLD with a branch to NEW. This is used for self-modifying
/// code.
///
- virtual void replaceMachineCodeForFunction(void *Old, void *New);
+ void replaceMachineCodeForFunction(void *Old, void *New) override;
- /// emitFunctionStub - Use the specified MachineCodeEmitter object to emit a
+ /// emitGlobalValueIndirectSym - Use the specified JITCodeEmitter object
+ /// to emit an indirect symbol which contains the address of the specified
+ /// ptr.
+ void *emitGlobalValueIndirectSym(const GlobalValue* GV, void *ptr,
+ JITCodeEmitter &JCE) override;
+
+ // getStubLayout - Returns the size and alignment of the largest call stub
+ // on X86.
+ StubLayout getStubLayout() override;
+
+ /// emitFunctionStub - Use the specified JITCodeEmitter object to emit a
/// small native function that simply calls the function at the specified
/// address.
- virtual void *emitFunctionStub(void *Fn, MachineCodeEmitter &MCE);
+ void *emitFunctionStub(const Function* F, void *Target,
+ JITCodeEmitter &JCE) override;
+
+ /// getPICJumpTableEntry - Returns the value of the jumptable entry for the
+ /// specific basic block.
+ uintptr_t getPICJumpTableEntry(uintptr_t BB, uintptr_t JTBase) override;
/// getLazyResolverFunction - Expose the lazy resolver to the JIT.
- virtual LazyResolverFn getLazyResolverFunction(JITCompilerFn);
+ LazyResolverFn getLazyResolverFunction(JITCompilerFn) override;
/// relocate - Before the JIT can run a block of code that has been emitted,
/// it must rewrite the code to contain the actual addresses of any
/// referenced global symbols.
- virtual void relocate(void *Function, MachineRelocation *MR,
- unsigned NumRelocs, unsigned char* GOTBase);
+ void relocate(void *Function, MachineRelocation *MR,
+ unsigned NumRelocs, unsigned char* GOTBase) override;
+
+ /// allocateThreadLocalMemory - Each target has its own way of
+ /// handling thread local variables. This method returns a value only
+ /// meaningful to the target.
+ char* allocateThreadLocalMemory(size_t size) override;
+
+ /// setPICBase / getPICBase - Getter / setter of PICBase, used to compute
+ /// PIC jumptable entry.
+ void setPICBase(uintptr_t Base) { PICBase = Base; }
+ uintptr_t getPICBase() const { return PICBase; }
};
}