From 0d723acf15b0326e2df09ecb614b02a617f536e4 Mon Sep 17 00:00:00 2001 From: Brian Gaeke Date: Tue, 11 Nov 2003 21:54:01 +0000 Subject: [PATCH] Move IsArchive, IsBytecode to FileUtilities. Fix up some method comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9902 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Linker/LinkArchives.cpp | 77 ++++++++----------------------------- tools/gccld/Linker.cpp | 77 ++++++++----------------------------- 2 files changed, 34 insertions(+), 120 deletions(-) diff --git a/lib/Linker/LinkArchives.cpp b/lib/Linker/LinkArchives.cpp index 7e8d655acd2..06f0635749b 100644 --- a/lib/Linker/LinkArchives.cpp +++ b/lib/Linker/LinkArchives.cpp @@ -30,50 +30,15 @@ #include #include -/// IsArchive - Returns true IFF the file named FN appears to be a "ar" library -/// archive. The file named FN must exist. +/// FindLib - Try to convert Filename into the name of a file that we can open, +/// if it does not already name a file we can open, by first trying to open +/// Filename, then libFilename. for each of a set of several common +/// library suffixes, in each of the directories in Paths and the directory +/// named by the value of the environment variable LLVM_LIB_SEARCH_PATH. Returns +/// an empty string if no matching file can be found. /// -static inline bool IsArchive(const std::string &FN) { - // Inspect the beginning of the file to see if it contains the "ar" magic - // string. - std::string Magic("!\012"); - char buf[1 + Magic.size()]; - std::ifstream f(FN.c_str()); - f.read(buf, Magic.size()); - buf[Magic.size()] = '\0'; - return Magic == buf; -} - -/// IsBytecode - Returns true IFF the file named FN appears to be an -/// LLVM bytecode file. The file named FN must exist. -/// -static inline bool IsBytecode(const std::string &FN) { - // Inspect the beginning of the file to see if it contains the LLVM - // bytecode format magic string. - std::string Magic("llvm"); - char buf[1 + Magic.size()]; - std::ifstream f(FN.c_str()); - f.read(buf, Magic.size()); - buf[Magic.size()] = '\0'; - return Magic == buf; -} - -/// FindLib - locates a particular library. It will prepend and append -/// various directories, prefixes, and suffixes until it can find the library. -/// -/// Inputs: -/// Filename - Name of the file to find. -/// Paths - List of directories to search. -/// -/// Outputs: -/// None. -/// -/// Return value: -/// The name of the file is returned. -/// If the file is not found, an empty string is returned. -/// -static std::string -FindLib(const std::string &Filename, const std::vector &Paths) { +static std::string FindLib(const std::string &Filename, + const std::vector &Paths) { // Determine if the pathname can be found as it stands. if (FileOpenable(Filename)) return Filename; @@ -165,25 +130,17 @@ GetAllUndefinedSymbols(Module *M, std::set &UndefinedSymbols) { } -/// LoadObject - reads the specified bytecode object file. -/// -/// Inputs: -/// FN - The name of the file to load. +/// LoadObject - Read in and parse the bytecode file named by FN and return the +/// module it contains (wrapped in an auto_ptr), or 0 and set ErrorMessage if an +/// error occurs. /// -/// Outputs: -/// OutErrorMessage - The error message to give back to the caller. -/// -/// Return Value: -/// A pointer to a module represening the bytecode file is returned. -/// If an error occurs, the pointer is 0. -/// -std::auto_ptr -LoadObject(const std::string & FN, std::string &OutErrorMessage) { - std::string ErrorMessage; - Module *Result = ParseBytecodeFile(FN, &ErrorMessage); +std::auto_ptr LoadObject(const std::string &FN, + std::string &ErrorMessage) { + std::string ParserErrorMessage; + Module *Result = ParseBytecodeFile(FN, &ParserErrorMessage); if (Result) return std::auto_ptr(Result); - OutErrorMessage = "Bytecode file '" + FN + "' corrupt!"; - if (ErrorMessage.size()) OutErrorMessage += ": " + ErrorMessage; + ErrorMessage = "Bytecode file '" + FN + "' could not be loaded"; + if (ParserErrorMessage.size()) ErrorMessage += ": " + ParserErrorMessage; return std::auto_ptr(); } diff --git a/tools/gccld/Linker.cpp b/tools/gccld/Linker.cpp index 7e8d655acd2..06f0635749b 100644 --- a/tools/gccld/Linker.cpp +++ b/tools/gccld/Linker.cpp @@ -30,50 +30,15 @@ #include #include -/// IsArchive - Returns true IFF the file named FN appears to be a "ar" library -/// archive. The file named FN must exist. +/// FindLib - Try to convert Filename into the name of a file that we can open, +/// if it does not already name a file we can open, by first trying to open +/// Filename, then libFilename. for each of a set of several common +/// library suffixes, in each of the directories in Paths and the directory +/// named by the value of the environment variable LLVM_LIB_SEARCH_PATH. Returns +/// an empty string if no matching file can be found. /// -static inline bool IsArchive(const std::string &FN) { - // Inspect the beginning of the file to see if it contains the "ar" magic - // string. - std::string Magic("!\012"); - char buf[1 + Magic.size()]; - std::ifstream f(FN.c_str()); - f.read(buf, Magic.size()); - buf[Magic.size()] = '\0'; - return Magic == buf; -} - -/// IsBytecode - Returns true IFF the file named FN appears to be an -/// LLVM bytecode file. The file named FN must exist. -/// -static inline bool IsBytecode(const std::string &FN) { - // Inspect the beginning of the file to see if it contains the LLVM - // bytecode format magic string. - std::string Magic("llvm"); - char buf[1 + Magic.size()]; - std::ifstream f(FN.c_str()); - f.read(buf, Magic.size()); - buf[Magic.size()] = '\0'; - return Magic == buf; -} - -/// FindLib - locates a particular library. It will prepend and append -/// various directories, prefixes, and suffixes until it can find the library. -/// -/// Inputs: -/// Filename - Name of the file to find. -/// Paths - List of directories to search. -/// -/// Outputs: -/// None. -/// -/// Return value: -/// The name of the file is returned. -/// If the file is not found, an empty string is returned. -/// -static std::string -FindLib(const std::string &Filename, const std::vector &Paths) { +static std::string FindLib(const std::string &Filename, + const std::vector &Paths) { // Determine if the pathname can be found as it stands. if (FileOpenable(Filename)) return Filename; @@ -165,25 +130,17 @@ GetAllUndefinedSymbols(Module *M, std::set &UndefinedSymbols) { } -/// LoadObject - reads the specified bytecode object file. -/// -/// Inputs: -/// FN - The name of the file to load. +/// LoadObject - Read in and parse the bytecode file named by FN and return the +/// module it contains (wrapped in an auto_ptr), or 0 and set ErrorMessage if an +/// error occurs. /// -/// Outputs: -/// OutErrorMessage - The error message to give back to the caller. -/// -/// Return Value: -/// A pointer to a module represening the bytecode file is returned. -/// If an error occurs, the pointer is 0. -/// -std::auto_ptr -LoadObject(const std::string & FN, std::string &OutErrorMessage) { - std::string ErrorMessage; - Module *Result = ParseBytecodeFile(FN, &ErrorMessage); +std::auto_ptr LoadObject(const std::string &FN, + std::string &ErrorMessage) { + std::string ParserErrorMessage; + Module *Result = ParseBytecodeFile(FN, &ParserErrorMessage); if (Result) return std::auto_ptr(Result); - OutErrorMessage = "Bytecode file '" + FN + "' corrupt!"; - if (ErrorMessage.size()) OutErrorMessage += ": " + ErrorMessage; + ErrorMessage = "Bytecode file '" + FN + "' could not be loaded"; + if (ParserErrorMessage.size()) ErrorMessage += ": " + ParserErrorMessage; return std::auto_ptr(); } -- 2.34.1