Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 1 | //===- lib/Linker/LinkItems.cpp - Link LLVM objects and libraries ---------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file was developed by Reid Spencer and is distributed under the |
| 6 | // University of Illinois Open Source License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file contains routines to handle linking together LLVM bytecode files, |
| 11 | // and to handle annoying things like static libraries. |
| 12 | // |
| 13 | //===----------------------------------------------------------------------===// |
| 14 | |
| 15 | #include "llvm/Linker.h" |
| 16 | #include "llvm/Module.h" |
Reid Spencer | e84de29 | 2004-12-13 02:59:52 +0000 | [diff] [blame^] | 17 | |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 18 | using namespace llvm; |
| 19 | |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 20 | // LinkItems - preserve link order for an arbitrary set of linkage items. |
Reid Spencer | e84de29 | 2004-12-13 02:59:52 +0000 | [diff] [blame^] | 21 | bool |
| 22 | Linker::LinkInItems(const ItemList& Items) { |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 23 | // For each linkage item ... |
Reid Spencer | e84de29 | 2004-12-13 02:59:52 +0000 | [diff] [blame^] | 24 | for (ItemList::const_iterator I = Items.begin(), E = Items.end(); |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 25 | I != E; ++I) { |
| 26 | if (I->second) { |
| 27 | // Link in the library suggested. |
Reid Spencer | e84de29 | 2004-12-13 02:59:52 +0000 | [diff] [blame^] | 28 | if (LinkInLibrary(I->first)) |
| 29 | return true; |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 30 | } else { |
Reid Spencer | e84de29 | 2004-12-13 02:59:52 +0000 | [diff] [blame^] | 31 | if (LinkInFile(sys::Path(I->first))) |
| 32 | return true; |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 33 | } |
| 34 | } |
| 35 | |
| 36 | // At this point we have processed all the link items provided to us. Since |
| 37 | // we have an aggregated module at this point, the dependent libraries in |
| 38 | // that module should also be aggregated with duplicates eliminated. This is |
| 39 | // now the time to process the dependent libraries to resolve any remaining |
| 40 | // symbols. |
Reid Spencer | e84de29 | 2004-12-13 02:59:52 +0000 | [diff] [blame^] | 41 | const Module::LibraryListType& DepLibs = Composite->getLibraries(); |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 42 | for (Module::LibraryListType::const_iterator I = DepLibs.begin(), |
| 43 | E = DepLibs.end(); I != E; ++I) { |
Reid Spencer | e84de29 | 2004-12-13 02:59:52 +0000 | [diff] [blame^] | 44 | if(LinkInLibrary(*I)) |
| 45 | return true; |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 46 | } |
| 47 | |
Reid Spencer | e84de29 | 2004-12-13 02:59:52 +0000 | [diff] [blame^] | 48 | return false; |
Reid Spencer | 4bdf1c9 | 2004-12-05 19:14:55 +0000 | [diff] [blame] | 49 | } |