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author | Jim Grosbach <grosbach@apple.com> | 2011-04-04 23:20:40 +0000 |
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committer | Jim Grosbach <grosbach@apple.com> | 2011-04-04 23:20:40 +0000 |
commit | b572830a52faad2fffc7119de53aa96c18d9bf07 (patch) | |
tree | 4a19bb970575f1018dd18768bcc329e193bbd8dc /lib/ExecutionEngine | |
parent | fcbe5b71936b820647dffff0e4f9c60ece3988a5 (diff) | |
download | external_llvm-b572830a52faad2fffc7119de53aa96c18d9bf07.zip external_llvm-b572830a52faad2fffc7119de53aa96c18d9bf07.tar.gz external_llvm-b572830a52faad2fffc7119de53aa96c18d9bf07.tar.bz2 |
Add missing file from r128851.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128856 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/ExecutionEngine')
-rw-r--r-- | lib/ExecutionEngine/MCJIT/MCJITMemoryManager.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/lib/ExecutionEngine/MCJIT/MCJITMemoryManager.h b/lib/ExecutionEngine/MCJIT/MCJITMemoryManager.h new file mode 100644 index 0000000..5ac19bb --- /dev/null +++ b/lib/ExecutionEngine/MCJIT/MCJITMemoryManager.h @@ -0,0 +1,58 @@ +//===-- MCJITMemoryManager.h - Definition for the Memory Manager ---C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIB_EXECUTIONENGINE_MCJITMEMORYMANAGER_H +#define LLVM_LIB_EXECUTIONENGINE_MCJITMEMORYMANAGER_H + +#include "llvm/Module.h" +#include "llvm/ExecutionEngine/JITMemoryManager.h" +#include "llvm/ExecutionEngine/RuntimeDyld.h" +#include <assert.h> + +namespace llvm { + +// The MCJIT memory manager is a layer between the standard JITMemoryManager +// and the RuntimeDyld interface that maps objects, by name, onto their +// matching LLVM IR counterparts in the module(s) being compiled. +class MCJITMemoryManager : public RTDyldMemoryManager { + JITMemoryManager *JMM; + + // FIXME: Multiple modules. + Module *M; +public: + MCJITMemoryManager(JITMemoryManager *jmm) : JMM(jmm) {} + + // Allocate ActualSize bytes, or more, for the named function. Return + // a pointer to the allocated memory and update Size to reflect how much + // memory was acutally allocated. + uint64_t startFunctionBody(const char *Name, uintptr_t &Size) { + Function *F = M->getFunction(Name); + assert(F && "No matching function in JIT IR Module!"); + return (uint64_t)JMM->startFunctionBody(F, Size); + } + + // Mark the end of the function, including how much of the allocated + // memory was actually used. + void endFunctionBody(const char *Name, uint64_t FunctionStart, + uint64_t FunctionEnd) { + Function *F = M->getFunction(Name); + assert(F && "No matching function in JIT IR Module!"); + // The JITMemoryManager interface makes the unfortunate assumption that + // the address space/sizes we're compiling on are the same as what we're + // compiling for, so it uses pointer types for its addresses. Explicit + // casts between them to deal with that. + return JMM->endFunctionBody(F, (uint8_t*)FunctionStart, + (uint8_t*)FunctionEnd); + } + +}; + +} // End llvm namespace + +#endif |