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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
//===-- llvm/LinkTimeOptimizer.h - LTO Public C Interface -------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This header provides a C API to use the LLVM link time optimization
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// library. This is intended to be used by linkers which are C-only in
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// their implementation for performing LTO.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_C_LINKTIMEOPTIMIZER_H
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#define LLVM_C_LINKTIMEOPTIMIZER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @defgroup LLVMCLinkTimeOptimizer Link Time Optimization
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* @ingroup LLVMC
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*
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* @{
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*/
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/// This provides a dummy type for pointers to the LTO object.
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typedef void* llvm_lto_t;
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/// This provides a C-visible enumerator to manage status codes.
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/// This should map exactly onto the C++ enumerator LTOStatus.
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typedef enum llvm_lto_status {
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LLVM_LTO_UNKNOWN,
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LLVM_LTO_OPT_SUCCESS,
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LLVM_LTO_READ_SUCCESS,
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LLVM_LTO_READ_FAILURE,
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LLVM_LTO_WRITE_FAILURE,
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LLVM_LTO_NO_TARGET,
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LLVM_LTO_NO_WORK,
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LLVM_LTO_MODULE_MERGE_FAILURE,
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LLVM_LTO_ASM_FAILURE,
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// Added C-specific error codes
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LLVM_LTO_NULL_OBJECT
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} llvm_lto_status_t;
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/// This provides C interface to initialize link time optimizer. This allows
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/// linker to use dlopen() interface to dynamically load LinkTimeOptimizer.
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/// extern "C" helps, because dlopen() interface uses name to find the symbol.
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extern llvm_lto_t llvm_create_optimizer(void);
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extern void llvm_destroy_optimizer(llvm_lto_t lto);
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extern llvm_lto_status_t llvm_read_object_file
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(llvm_lto_t lto, const char* input_filename);
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extern llvm_lto_status_t llvm_optimize_modules
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(llvm_lto_t lto, const char* output_filename);
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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