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consolidate LinkFiles into LinkItems, use lib_* iterators.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20630 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-03-15 22:55:17 +00:00
parent ad988f397d
commit fc82ef6797
2 changed files with 61 additions and 85 deletions
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81
lib/Linker/LinkFiles.cpp
View File

@ -1,81 +0,0 @@
//===- lib/Linker/LinkFiles.cpp - Link LLVM bytecode files ---------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Reid Spencer and is distributed under the
// University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains routines to handle linking together LLVM bytecode files.
//
//===----------------------------------------------------------------------===//
#include "llvm/Linker.h"
#include "llvm/Module.h"
using namespace llvm;
/// LinkInFile - opens a bytecode file and links in all objects which
/// provide symbols that are currently undefined.
///
/// Inputs:
/// File - The pathname of the bytecode file.
///
/// Outputs:
/// ErrorMessage - A C++ string detailing what error occurred, if any.
///
/// Return Value:
/// TRUE - An error occurred.
/// FALSE - No errors.
///
bool
Linker::LinkInFile(const sys::Path &File)
{
// Make sure we can at least read the file
if (!File.readable())
return error("Cannot find linker input '" + File.toString() + "'");
// A user may specify an ar archive without -l, perhaps because it
// is not installed as a library. Detect that and link the library.
if (File.isArchive()) {
if (LinkInArchive(File))
return error("Cannot link archive '" + File.toString() + "'");
} else if (File.isBytecodeFile()) {
verbose("Linking bytecode file '" + File.toString() + "'");
std::auto_ptr<Module> M(LoadObject(File));
if (M.get() == 0)
return error("Cannot load file '" + File.toString() + "'" + Error);
if (LinkInModule(M.get()))
return error("Cannot link file '" + File.toString() + "'" + Error);
verbose("Linked in file '" + File.toString() + "'");
} else {
return warning("File of unknown type '" + File.toString() + "' ignored.");
}
return false;
}
/// LinkFiles - takes a module and a list of files and links them all together.
/// It locates the file either in the current directory, as its absolute
/// or relative pathname, or as a file somewhere in LLVM_LIB_SEARCH_PATH.
///
/// Inputs:
/// Files - A vector of sys::Path indicating the LLVM bytecode filenames
/// to be linked. The names can refer to a mixture of pure LLVM
/// bytecode files and archive (ar) formatted files.
///
/// Return value:
/// FALSE - No errors.
/// TRUE - Some error occurred.
///
bool
Linker::LinkInFiles(const std::vector<sys::Path> &Files)
{
for (unsigned i = 0; i < Files.size(); ++i) {
if (LinkInFile(Files[i]))
return true;
}
return false;
}

65
lib/Linker/LinkItems.cpp
View File

@ -38,12 +38,10 @@ Linker::LinkInItems(const ItemList& Items) {
// that module should also be aggregated with duplicates eliminated. This is
// now the time to process the dependent libraries to resolve any remaining
// symbols.
const Module::LibraryListType& DepLibs = Composite->getLibraries();
for (Module::LibraryListType::const_iterator I = DepLibs.begin(),
E = DepLibs.end(); I != E; ++I) {
for (Module::lib_iterator I = Composite->lib_begin(),
E = Composite->lib_end(); I != E; ++I)
if(LinkInLibrary(*I))
return true;
}
return false;
}
@ -104,3 +102,62 @@ bool Linker::LinkInLibraries(const std::vector<std::string> &Libraries) {
return false;
}
/// LinkInFile - opens a bytecode file and links in all objects which
/// provide symbols that are currently undefined.
///
/// Inputs:
/// File - The pathname of the bytecode file.
///
/// Outputs:
/// ErrorMessage - A C++ string detailing what error occurred, if any.
///
/// Return Value:
/// TRUE - An error occurred.
/// FALSE - No errors.
///
bool Linker::LinkInFile(const sys::Path &File) {
// Make sure we can at least read the file
if (!File.readable())
return error("Cannot find linker input '" + File.toString() + "'");
// A user may specify an ar archive without -l, perhaps because it
// is not installed as a library. Detect that and link the library.
if (File.isArchive()) {
if (LinkInArchive(File))
return error("Cannot link archive '" + File.toString() + "'");
} else if (File.isBytecodeFile()) {
verbose("Linking bytecode file '" + File.toString() + "'");
std::auto_ptr<Module> M(LoadObject(File));
if (M.get() == 0)
return error("Cannot load file '" + File.toString() + "'" + Error);
if (LinkInModule(M.get()))
return error("Cannot link file '" + File.toString() + "'" + Error);
verbose("Linked in file '" + File.toString() + "'");
} else {
return warning("File of unknown type '" + File.toString() + "' ignored.");
}
return false;
}
/// LinkFiles - takes a module and a list of files and links them all together.
/// It locates the file either in the current directory, as its absolute
/// or relative pathname, or as a file somewhere in LLVM_LIB_SEARCH_PATH.
///
/// Inputs:
/// Files - A vector of sys::Path indicating the LLVM bytecode filenames
/// to be linked. The names can refer to a mixture of pure LLVM
/// bytecode files and archive (ar) formatted files.
///
/// Return value:
/// FALSE - No errors.
/// TRUE - Some error occurred.
///
bool Linker::LinkInFiles(const std::vector<sys::Path> &Files) {
for (unsigned i = 0; i < Files.size(); ++i)
if (LinkInFile(Files[i]))
return true;
return false;
}