Expose the RTDyldMemoryManager through the C API. This allows clients of
the C API to provide their own way of allocating JIT memory (both code
and data) and finalizing memory permissions (page protections, cache
flush).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182448 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm-c/ExecutionEngine.h b/include/llvm-c/ExecutionEngine.h
index 8fae77d..50fdb6b 100644
--- a/include/llvm-c/ExecutionEngine.h
+++ b/include/llvm-c/ExecutionEngine.h
@@ -40,12 +40,14 @@
typedef struct LLVMOpaqueGenericValue *LLVMGenericValueRef;
typedef struct LLVMOpaqueExecutionEngine *LLVMExecutionEngineRef;
+typedef struct LLVMOpaqueMCJITMemoryManager *LLVMMCJITMemoryManagerRef;
struct LLVMMCJITCompilerOptions {
unsigned OptLevel;
LLVMCodeModel CodeModel;
LLVMBool NoFramePointerElim;
LLVMBool EnableFastISel;
+ LLVMMCJITMemoryManagerRef MCJMM;
};
/*===-- Operations on generic values --------------------------------------===*/
@@ -167,6 +169,32 @@
void *LLVMGetPointerToGlobal(LLVMExecutionEngineRef EE, LLVMValueRef Global);
+/*===-- Operations on memory managers -------------------------------------===*/
+
+/**
+ * Create a simple custom MCJIT memory manager. This memory manager can
+ * intercept allocations in a module-oblivious way. This will return NULL
+ * if any of the passed functions are NULL.
+ *
+ * @param Opaque An opaque client object to pass back to the callbacks.
+ * @param AllocateCodeSection Allocate a block of memory for executable code.
+ * @param AllocateDataSection Allocate a block of memory for data.
+ * @param FinalizeMemory Set page permissions and flush cache. Return 0 on
+ * success, 1 on error.
+ */
+LLVMMCJITMemoryManagerRef LLVMCreateSimpleMCJITMemoryManager(
+ void *Opaque,
+ uint8_t *(*AllocateCodeSection)(void *Opaque,
+ uintptr_t Size, unsigned Alignment,
+ unsigned SectionID),
+ uint8_t *(*AllocateDataSection)(void *Opaque,
+ uintptr_t Size, unsigned Alignment,
+ unsigned SectionID, LLVMBool IsReadOnly),
+ LLVMBool (*FinalizeMemory)(void *Opaque, char **ErrMsg),
+ void (*Destroy)(void *Opaque));
+
+void LLVMDisposeMCJITMemoryManager(LLVMMCJITMemoryManagerRef MM);
+
/**
* @}
*/