diff options
Diffstat (limited to 'include/llvm/ExecutionEngine/RuntimeDyld.h')
-rw-r--r-- | include/llvm/ExecutionEngine/RuntimeDyld.h | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/include/llvm/ExecutionEngine/RuntimeDyld.h b/include/llvm/ExecutionEngine/RuntimeDyld.h index 724b9f0..54c28f3 100644 --- a/include/llvm/ExecutionEngine/RuntimeDyld.h +++ b/include/llvm/ExecutionEngine/RuntimeDyld.h @@ -35,15 +35,18 @@ public: RTDyldMemoryManager() {} virtual ~RTDyldMemoryManager(); - // 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. - virtual uint8_t *startFunctionBody(const char *Name, uintptr_t &Size) = 0; + /// allocateCodeSection - Allocate a memory block of (at least) the given + /// size suitable for executable code. + virtual uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment, + unsigned SectionID) = 0; - // Mark the end of the function, including how much of the allocated - // memory was actually used. - virtual void endFunctionBody(const char *Name, uint8_t *FunctionStart, - uint8_t *FunctionEnd) = 0; + /// allocateDataSection - Allocate a memory block of (at least) the given + /// size suitable for data. + virtual uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment, + unsigned SectionID) = 0; + + virtual void *getPointerToNamedFunction(const std::string &Name, + bool AbortOnFailure = true) = 0; }; class RuntimeDyld { @@ -54,6 +57,10 @@ class RuntimeDyld { // interface. RuntimeDyldImpl *Dyld; RTDyldMemoryManager *MM; +protected: + // Change the address associated with a section when resolving relocations. + // Any relocations already associated with the symbol will be re-resolved. + void reassignSectionAddress(unsigned SectionID, uint64_t Addr); public: RuntimeDyld(RTDyldMemoryManager*); ~RuntimeDyld(); @@ -65,9 +72,13 @@ public: void *getSymbolAddress(StringRef Name); // Resolve the relocations for all symbols we currently know about. void resolveRelocations(); - // Change the address associated with a symbol when resolving relocations. - // Any relocations already associated with the symbol will be re-resolved. - void reassignSymbolAddress(StringRef Name, uint8_t *Addr); + + /// mapSectionAddress - map a section to its target address space value. + /// Map the address of a JIT section as returned from the memory manager + /// to the address in the target process as the running code will see it. + /// This is the address which will be used for relocation resolution. + void mapSectionAddress(void *LocalAddress, uint64_t TargetAddress); + StringRef getErrorString(); }; |