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Implement support for dependent libraries. The "source" module's dependent

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libraries list is merged into the "destination" module's list. Also, if the
source module is one of the dependent libraries, it is removed from the
list.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16282 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-09-11 04:25:17 +00:00
parent 46a981c3e2
commit 57a0efa322
2 changed files with 42 additions and 0 deletions
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21
lib/Linker/LinkModules.cpp
View File

@ -23,6 +23,7 @@
#include "llvm/SymbolTable.h"
#include "llvm/Instructions.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/System/Path.h"
#include <iostream>
#include <sstream>
using namespace llvm;
@ -835,6 +836,9 @@ static bool LinkAppendingVars(Module *M,
// shouldn't be relied on to be consistent.
//
bool llvm::LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
assert(Dest != 0 && "Invalid Destination module");
assert(Src != 0 && "Invalid Source Module");
if (Dest->getEndianness() == Module::AnyEndianness)
Dest->setEndianness(Src->getEndianness());
if (Dest->getPointerSize() == Module::AnyPointerSize)
@ -847,6 +851,16 @@ bool llvm::LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
Dest->getPointerSize() != Src->getPointerSize())
std::cerr << "WARNING: Linking two modules of different pointer size!\n";
// Update the destination module's dependent libraries list with the libraries
// from the source module. There's no opportunity for duplicates here as the
// Module ensures that duplicate insertions are discarded.
Module::lib_iterator SI = Src->lib_begin();
Module::lib_iterator SE = Src->lib_end();
while ( SI != SE ) {
Dest->addLibrary(*SI);
++SI;
}
// LinkTypes - Go through the symbol table of the Src module and see if any
// types are named in the src module that are not named in the Dst module.
// Make sure there are no type name conflicts.
@ -915,6 +929,13 @@ bool llvm::LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
//
if (LinkAppendingVars(Dest, AppendingVars, ErrorMsg)) return true;
// If the source library's module id is in the dependent library list of the
// destination library, remove it since that module is now linked in.
sys::Path modId;
modId.set_file(Src->getModuleIdentifier());
if (!modId.is_empty())
Dest->removeLibrary(modId.get_basename());
return false;
}

21
lib/VMCore/Linker.cpp
View File

@ -23,6 +23,7 @@
#include "llvm/SymbolTable.h"
#include "llvm/Instructions.h"
#include "llvm/Assembly/Writer.h"
#include "llvm/System/Path.h"
#include <iostream>
#include <sstream>
using namespace llvm;
@ -835,6 +836,9 @@ static bool LinkAppendingVars(Module *M,
// shouldn't be relied on to be consistent.
//
bool llvm::LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
assert(Dest != 0 && "Invalid Destination module");
assert(Src != 0 && "Invalid Source Module");
if (Dest->getEndianness() == Module::AnyEndianness)
Dest->setEndianness(Src->getEndianness());
if (Dest->getPointerSize() == Module::AnyPointerSize)
@ -847,6 +851,16 @@ bool llvm::LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
Dest->getPointerSize() != Src->getPointerSize())
std::cerr << "WARNING: Linking two modules of different pointer size!\n";
// Update the destination module's dependent libraries list with the libraries
// from the source module. There's no opportunity for duplicates here as the
// Module ensures that duplicate insertions are discarded.
Module::lib_iterator SI = Src->lib_begin();
Module::lib_iterator SE = Src->lib_end();
while ( SI != SE ) {
Dest->addLibrary(*SI);
++SI;
}
// LinkTypes - Go through the symbol table of the Src module and see if any
// types are named in the src module that are not named in the Dst module.
// Make sure there are no type name conflicts.
@ -915,6 +929,13 @@ bool llvm::LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
//
if (LinkAppendingVars(Dest, AppendingVars, ErrorMsg)) return true;
// If the source library's module id is in the dependent library list of the
// destination library, remove it since that module is now linked in.
sys::Path modId;
modId.set_file(Src->getModuleIdentifier());
if (!modId.is_empty())
Dest->removeLibrary(modId.get_basename());
return false;
}