diff options
Diffstat (limited to 'llvm/include/llvm/Support/MemoryBuffer.h')
| -rw-r--r-- | llvm/include/llvm/Support/MemoryBuffer.h | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/llvm/include/llvm/Support/MemoryBuffer.h b/llvm/include/llvm/Support/MemoryBuffer.h index 6385805eba1d..ed975c86c125 100644 --- a/llvm/include/llvm/Support/MemoryBuffer.h +++ b/llvm/include/llvm/Support/MemoryBuffer.h @@ -17,6 +17,7 @@ #include "llvm/ADT/ArrayRef.h" #include "llvm/ADT/StringRef.h" #include "llvm/ADT/Twine.h" +#include "llvm/Support/Alignment.h" #include "llvm/Support/CBindingWrapping.h" #include "llvm/Support/ErrorOr.h" #include "llvm/Support/MemoryBufferRef.h" @@ -90,9 +91,13 @@ public: /// \param IsVolatile Set to true to indicate that the contents of the file /// can change outside the user's control, e.g. when libclang tries to parse /// while the user is editing/updating the file or if the file is on an NFS. + /// + /// \param Alignment Set to indicate that the buffer should be aligned to at + /// least the specified alignment. static ErrorOr<std::unique_ptr<MemoryBuffer>> getFile(const Twine &Filename, bool IsText = false, - bool RequiresNullTerminator = true, bool IsVolatile = false); + bool RequiresNullTerminator = true, bool IsVolatile = false, + Optional<Align> Alignment = None); /// Read all of the specified file into a MemoryBuffer as a stream /// (i.e. until EOF reached). This is useful for special files that @@ -105,7 +110,8 @@ public: /// Since this is in the middle of a file, the buffer is not null terminated. static ErrorOr<std::unique_ptr<MemoryBuffer>> getOpenFileSlice(sys::fs::file_t FD, const Twine &Filename, uint64_t MapSize, - int64_t Offset, bool IsVolatile = false); + int64_t Offset, bool IsVolatile = false, + Optional<Align> Alignment = None); /// Given an already-open file descriptor, read the file and return a /// MemoryBuffer. @@ -113,9 +119,13 @@ public: /// \param IsVolatile Set to true to indicate that the contents of the file /// can change outside the user's control, e.g. when libclang tries to parse /// while the user is editing/updating the file or if the file is on an NFS. + /// + /// \param Alignment Set to indicate that the buffer should be aligned to at + /// least the specified alignment. static ErrorOr<std::unique_ptr<MemoryBuffer>> getOpenFile(sys::fs::file_t FD, const Twine &Filename, uint64_t FileSize, - bool RequiresNullTerminator = true, bool IsVolatile = false); + bool RequiresNullTerminator = true, bool IsVolatile = false, + Optional<Align> Alignment = None); /// Open the specified memory range as a MemoryBuffer. Note that InputData /// must be null terminated if RequiresNullTerminator is true. @@ -138,12 +148,13 @@ public: /// is "-". static ErrorOr<std::unique_ptr<MemoryBuffer>> getFileOrSTDIN(const Twine &Filename, bool IsText = false, - bool RequiresNullTerminator = true); + bool RequiresNullTerminator = true, + Optional<Align> Alignment = None); /// Map a subrange of the specified file as a MemoryBuffer. static ErrorOr<std::unique_ptr<MemoryBuffer>> getFileSlice(const Twine &Filename, uint64_t MapSize, uint64_t Offset, - bool IsVolatile = false); + bool IsVolatile = false, Optional<Align> Alignment = None); //===--------------------------------------------------------------------===// // Provided for performance analysis. @@ -188,18 +199,23 @@ public: } static ErrorOr<std::unique_ptr<WritableMemoryBuffer>> - getFile(const Twine &Filename, bool IsVolatile = false); + getFile(const Twine &Filename, bool IsVolatile = false, + Optional<Align> Alignment = None); /// Map a subrange of the specified file as a WritableMemoryBuffer. static ErrorOr<std::unique_ptr<WritableMemoryBuffer>> getFileSlice(const Twine &Filename, uint64_t MapSize, uint64_t Offset, - bool IsVolatile = false); + bool IsVolatile = false, Optional<Align> Alignment = None); /// Allocate a new MemoryBuffer of the specified size that is not initialized. /// Note that the caller should initialize the memory allocated by this /// method. The memory is owned by the MemoryBuffer object. + /// + /// \param Alignment Set to indicate that the buffer should be aligned to at + /// least the specified alignment. static std::unique_ptr<WritableMemoryBuffer> - getNewUninitMemBuffer(size_t Size, const Twine &BufferName = ""); + getNewUninitMemBuffer(size_t Size, const Twine &BufferName = "", + Optional<Align> Alignment = None); /// Allocate a new zero-initialized MemoryBuffer of the specified size. Note /// that the caller need not initialize the memory allocated by this method. |