| //===-- llvm/LinkTimeOptimizer.h - LTO Public C Interface -------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This header provides a C API to use the LLVM link time optimization |
| // library. This is intended to be used by linkers which are C-only in |
| // their implementation for performing LTO. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_C_LINKTIMEOPTIMIZER_H |
| #define LLVM_C_LINKTIMEOPTIMIZER_H |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * @defgroup LLVMCLinkTimeOptimizer Link Time Optimization |
| * @ingroup LLVMC |
| * |
| * @{ |
| */ |
| |
| /// This provides a dummy type for pointers to the LTO object. |
| typedef void* llvm_lto_t; |
| |
| /// This provides a C-visible enumerator to manage status codes. |
| /// This should map exactly onto the C++ enumerator LTOStatus. |
| typedef enum llvm_lto_status { |
| LLVM_LTO_UNKNOWN, |
| LLVM_LTO_OPT_SUCCESS, |
| LLVM_LTO_READ_SUCCESS, |
| LLVM_LTO_READ_FAILURE, |
| LLVM_LTO_WRITE_FAILURE, |
| LLVM_LTO_NO_TARGET, |
| LLVM_LTO_NO_WORK, |
| LLVM_LTO_MODULE_MERGE_FAILURE, |
| LLVM_LTO_ASM_FAILURE, |
| |
| // Added C-specific error codes |
| LLVM_LTO_NULL_OBJECT |
| } llvm_lto_status_t; |
| |
| /// This provides C interface to initialize link time optimizer. This allows |
| /// linker to use dlopen() interface to dynamically load LinkTimeOptimizer. |
| /// extern "C" helps, because dlopen() interface uses name to find the symbol. |
| extern llvm_lto_t llvm_create_optimizer(void); |
| extern void llvm_destroy_optimizer(llvm_lto_t lto); |
| |
| extern llvm_lto_status_t llvm_read_object_file |
| (llvm_lto_t lto, const char* input_filename); |
| extern llvm_lto_status_t llvm_optimize_modules |
| (llvm_lto_t lto, const char* output_filename); |
| |
| /** |
| * @} |
| */ |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif |
