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https://github.com/c64scene-ar/llvm-6502.git
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32f5553c03
Provide new llvm::sys::Program facilities for converting the stdout and stdin to binary mode. There is no standard way to do this and the available mechanisms are platform specific. Adjust the bytecode reader and writer to use these methods when their input is stdin or output is stdout. THis avoids the problem with \n writing CRLF to a bytecode file on windows. Patch Contributed by Michael Smith. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28722 91177308-0d34-0410-b5e6-96231b3b80d8
87 lines
4.1 KiB
C++
87 lines
4.1 KiB
C++
//===- llvm/System/Program.h ------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Reid Spencer and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the llvm::sys::Program class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SYSTEM_PROGRAM_H
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#define LLVM_SYSTEM_PROGRAM_H
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#include "llvm/System/Path.h"
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#include <vector>
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namespace llvm {
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namespace sys {
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/// This class provides an abstraction for programs that are executable by the
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/// operating system. It provides a platform generic way to find executable
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/// programs from the path and to execute them in various ways. The sys::Path
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/// class is used to specify the location of the Program.
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/// @since 1.4
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/// @brief An abstraction for finding and executing programs.
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class Program {
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/// @name Methods
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/// @{
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public:
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/// This static constructor (factory) will attempt to locate a program in
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/// the operating system's file system using some pre-determined set of
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/// locations to search (e.g. the PATH on Unix).
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/// @returns A Path object initialized to the path of the program or a
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/// Path object that is empty (invalid) if the program could not be found.
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/// @throws nothing
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/// @brief Construct a Program by finding it by name.
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static Path FindProgramByName(const std::string& name);
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/// This function executes the program using the \p arguments provided and
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/// waits for the program to exit. This function will block the current
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/// program until the invoked program exits. The invoked program will
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/// inherit the stdin, stdout, and stderr file descriptors, the
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/// environment and other configuration settings of the invoking program.
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/// If Path::executable() does not return true when this function is
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/// called then a std::string is thrown.
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/// @returns an integer result code indicating the status of the program.
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/// A zero or positive value indicates the result code of the program. A
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/// negative value is the signal number on which it terminated.
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/// @throws std::string on a variety of error conditions or if the invoked
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/// program aborted abnormally.
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/// @see FindProgrambyName
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/// @brief Executes the program with the given set of \p args.
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static int ExecuteAndWait(
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const Path& path, ///< sys::Path object providing the path of the
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///< program to be executed. It is presumed this is the result of
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///< the FindProgramByName method.
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const char** args, ///< A vector of strings that are passed to the
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///< program. The first element should be the name of the program.
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///< The list *must* be terminated by a null char* entry.
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const char ** env = 0, ///< An optional vector of strings to use for
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///< the program's environment. If not provided, the current program's
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///< environment will be used.
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const sys::Path** redirects = 0, ///< An optional array of pointers to
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///< Paths. If the array is null, no redirection is done. The array
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///< should have a size of at least three. If the pointer in the array
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///< are not null, then the inferior process's stdin(0), stdout(1),
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///< and stderr(2) will be redirected to the corresponding Paths.
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unsigned secondsToWait = 0 ///< If non-zero, this specifies the amount
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///< of time to wait for the child process to exit. If the time
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///< expires, the child is killed and this call returns. If zero,
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///< this function will wait until the child finishes or forever if
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///< it doesn't.
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);
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// These methods change the specified standard stream (stdin or stdout) to
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// binary mode.
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static void ChangeStdinToBinary();
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static void ChangeStdoutToBinary();
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};
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}
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}
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#endif
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