diff options
Diffstat (limited to 'include/llvm/Support/Memory.h')
| -rw-r--r-- | include/llvm/Support/Memory.h | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/include/llvm/Support/Memory.h b/include/llvm/Support/Memory.h index 8103aea2fa25..3140dc6eef42 100644 --- a/include/llvm/Support/Memory.h +++ b/include/llvm/Support/Memory.h @@ -109,51 +109,10 @@ namespace sys { static std::error_code protectMappedMemory(const MemoryBlock &Block, unsigned Flags); - /// This method allocates a block of Read/Write/Execute memory that is - /// suitable for executing dynamically generated code (e.g. JIT). An - /// attempt to allocate \p NumBytes bytes of virtual memory is made. - /// \p NearBlock may point to an existing allocation in which case - /// an attempt is made to allocate more memory near the existing block. - /// - /// On success, this returns a non-null memory block, otherwise it returns - /// a null memory block and fills in *ErrMsg. - /// - /// @brief Allocate Read/Write/Execute memory. - static MemoryBlock AllocateRWX(size_t NumBytes, - const MemoryBlock *NearBlock, - std::string *ErrMsg = nullptr); - - /// This method releases a block of Read/Write/Execute memory that was - /// allocated with the AllocateRWX method. It should not be used to - /// release any memory block allocated any other way. - /// - /// On success, this returns false, otherwise it returns true and fills - /// in *ErrMsg. - /// @brief Release Read/Write/Execute memory. - static bool ReleaseRWX(MemoryBlock &block, std::string *ErrMsg = nullptr); - /// InvalidateInstructionCache - Before the JIT can run a block of code /// that has been emitted it must invalidate the instruction cache on some /// platforms. static void InvalidateInstructionCache(const void *Addr, size_t Len); - - /// setExecutable - Before the JIT can run a block of code, it has to be - /// given read and executable privilege. Return true if it is already r-x - /// or the system is able to change its previlege. - static bool setExecutable(MemoryBlock &M, std::string *ErrMsg = nullptr); - - /// setWritable - When adding to a block of code, the JIT may need - /// to mark a block of code as RW since the protections are on page - /// boundaries, and the JIT internal allocations are not page aligned. - static bool setWritable(MemoryBlock &M, std::string *ErrMsg = nullptr); - - /// setRangeExecutable - Mark the page containing a range of addresses - /// as executable. - static bool setRangeExecutable(const void *Addr, size_t Size); - - /// setRangeWritable - Mark the page containing a range of addresses - /// as writable. - static bool setRangeWritable(const void *Addr, size_t Size); }; /// Owning version of MemoryBlock. |