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Move IsArchive, IsBytecode to FileUtilities. Fix up some method comments.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9902 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2003-11-11 21:54:01 +00:00
parent a2302ffe78
commit 0d723acf15
2 changed files with 34 additions and 120 deletions
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77
lib/Linker/LinkArchives.cpp
View File

@ -30,50 +30,15 @@
#include <memory> #include <memory>
#include <set> #include <set>
/// IsArchive - Returns true IFF the file named FN appears to be a "ar" library /// FindLib - Try to convert Filename into the name of a file that we can open,
/// archive. The file named FN must exist. /// if it does not already name a file we can open, by first trying to open
/// Filename, then libFilename.<suffix> 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) { static std::string FindLib(const std::string &Filename,
// Inspect the beginning of the file to see if it contains the "ar" magic const std::vector<std::string> &Paths) {
// string.
std::string Magic("!<arch>\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<std::string> &Paths) {
// Determine if the pathname can be found as it stands. // Determine if the pathname can be found as it stands.
if (FileOpenable(Filename)) if (FileOpenable(Filename))
return Filename; return Filename;
@ -165,25 +130,17 @@ GetAllUndefinedSymbols(Module *M, std::set<std::string> &UndefinedSymbols) {
} }
/// LoadObject - reads the specified bytecode object file. /// 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.
/// ///
/// Inputs: std::auto_ptr<Module> LoadObject(const std::string &FN,
/// FN - The name of the file to load. std::string &ErrorMessage) {
/// std::string ParserErrorMessage;
/// Outputs: Module *Result = ParseBytecodeFile(FN, &ParserErrorMessage);
/// 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<Module>
LoadObject(const std::string & FN, std::string &OutErrorMessage) {
std::string ErrorMessage;
Module *Result = ParseBytecodeFile(FN, &ErrorMessage);
if (Result) return std::auto_ptr<Module>(Result); if (Result) return std::auto_ptr<Module>(Result);
OutErrorMessage = "Bytecode file '" + FN + "' corrupt!"; ErrorMessage = "Bytecode file '" + FN + "' could not be loaded";
if (ErrorMessage.size()) OutErrorMessage += ": " + ErrorMessage; if (ParserErrorMessage.size()) ErrorMessage += ": " + ParserErrorMessage;
return std::auto_ptr<Module>(); return std::auto_ptr<Module>();
} }

77
tools/gccld/Linker.cpp
View File

@ -30,50 +30,15 @@
#include <memory> #include <memory>
#include <set> #include <set>
/// IsArchive - Returns true IFF the file named FN appears to be a "ar" library /// FindLib - Try to convert Filename into the name of a file that we can open,
/// archive. The file named FN must exist. /// if it does not already name a file we can open, by first trying to open
/// Filename, then libFilename.<suffix> 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) { static std::string FindLib(const std::string &Filename,
// Inspect the beginning of the file to see if it contains the "ar" magic const std::vector<std::string> &Paths) {
// string.
std::string Magic("!<arch>\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<std::string> &Paths) {
// Determine if the pathname can be found as it stands. // Determine if the pathname can be found as it stands.
if (FileOpenable(Filename)) if (FileOpenable(Filename))
return Filename; return Filename;
@ -165,25 +130,17 @@ GetAllUndefinedSymbols(Module *M, std::set<std::string> &UndefinedSymbols) {
} }
/// LoadObject - reads the specified bytecode object file. /// 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.
/// ///
/// Inputs: std::auto_ptr<Module> LoadObject(const std::string &FN,
/// FN - The name of the file to load. std::string &ErrorMessage) {
/// std::string ParserErrorMessage;
/// Outputs: Module *Result = ParseBytecodeFile(FN, &ParserErrorMessage);
/// 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<Module>
LoadObject(const std::string & FN, std::string &OutErrorMessage) {
std::string ErrorMessage;
Module *Result = ParseBytecodeFile(FN, &ErrorMessage);
if (Result) return std::auto_ptr<Module>(Result); if (Result) return std::auto_ptr<Module>(Result);
OutErrorMessage = "Bytecode file '" + FN + "' corrupt!"; ErrorMessage = "Bytecode file '" + FN + "' could not be loaded";
if (ErrorMessage.size()) OutErrorMessage += ": " + ErrorMessage; if (ParserErrorMessage.size()) ErrorMessage += ": " + ParserErrorMessage;
return std::auto_ptr<Module>(); return std::auto_ptr<Module>();
} }