mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-22 10:42:39 +01:00
dd6e19a41c
In the textual format, `noduplicates` means no COMDAT/section group deduplication is performed. Therefore, if both sets of sections are retained, and they happen to define strong external symbols with the same names, there will be a duplicate definition linker error. In PE/COFF, the selection kind lowers to `IMAGE_COMDAT_SELECT_NODUPLICATES`. The name describes the corollary instead of the immediate semantics. The name can cause confusion to other binary formats (ELF, wasm) which have implemented/ want to implement the "no deduplication" selection kind. Rename it to be clearer. Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D106319
72 lines
2.6 KiB
C++
72 lines
2.6 KiB
C++
/*===-- llvm-c/Comdat.h - Module Comdat C Interface -------------*- C++ -*-===*\
|
|
|* *|
|
|
|* Part of the LLVM Project, under the Apache License v2.0 with LLVM *|
|
|
|* Exceptions. *|
|
|
|* See https://llvm.org/LICENSE.txt for license information. *|
|
|
|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception *|
|
|
|* *|
|
|
|*===----------------------------------------------------------------------===*|
|
|
|* *|
|
|
|* This file defines the C interface to COMDAT. *|
|
|
|* *|
|
|
\*===----------------------------------------------------------------------===*/
|
|
|
|
#ifndef LLVM_C_COMDAT_H
|
|
#define LLVM_C_COMDAT_H
|
|
|
|
#include "llvm-c/ExternC.h"
|
|
#include "llvm-c/Types.h"
|
|
|
|
LLVM_C_EXTERN_C_BEGIN
|
|
|
|
typedef enum {
|
|
LLVMAnyComdatSelectionKind, ///< The linker may choose any COMDAT.
|
|
LLVMExactMatchComdatSelectionKind, ///< The data referenced by the COMDAT must
|
|
///< be the same.
|
|
LLVMLargestComdatSelectionKind, ///< The linker will choose the largest
|
|
///< COMDAT.
|
|
LLVMNoDeduplicateComdatSelectionKind, ///< No deduplication is performed.
|
|
LLVMSameSizeComdatSelectionKind ///< The data referenced by the COMDAT must be
|
|
///< the same size.
|
|
} LLVMComdatSelectionKind;
|
|
|
|
/**
|
|
* Return the Comdat in the module with the specified name. It is created
|
|
* if it didn't already exist.
|
|
*
|
|
* @see llvm::Module::getOrInsertComdat()
|
|
*/
|
|
LLVMComdatRef LLVMGetOrInsertComdat(LLVMModuleRef M, const char *Name);
|
|
|
|
/**
|
|
* Get the Comdat assigned to the given global object.
|
|
*
|
|
* @see llvm::GlobalObject::getComdat()
|
|
*/
|
|
LLVMComdatRef LLVMGetComdat(LLVMValueRef V);
|
|
|
|
/**
|
|
* Assign the Comdat to the given global object.
|
|
*
|
|
* @see llvm::GlobalObject::setComdat()
|
|
*/
|
|
void LLVMSetComdat(LLVMValueRef V, LLVMComdatRef C);
|
|
|
|
/*
|
|
* Get the conflict resolution selection kind for the Comdat.
|
|
*
|
|
* @see llvm::Comdat::getSelectionKind()
|
|
*/
|
|
LLVMComdatSelectionKind LLVMGetComdatSelectionKind(LLVMComdatRef C);
|
|
|
|
/*
|
|
* Set the conflict resolution selection kind for the Comdat.
|
|
*
|
|
* @see llvm::Comdat::setSelectionKind()
|
|
*/
|
|
void LLVMSetComdatSelectionKind(LLVMComdatRef C, LLVMComdatSelectionKind Kind);
|
|
|
|
LLVM_C_EXTERN_C_END
|
|
|
|
#endif
|