aboutsummaryrefslogtreecommitdiffstats
path: root/lib
diff options
context:
space:
mode:
authorReid Spencer <rspencer@reidspencer.com>2004-09-11 04:25:17 +0000
committerReid Spencer <rspencer@reidspencer.com>2004-09-11 04:25:17 +0000
commit57a0efa32240ef03ea318f9ba7680fd2b8609c6e (patch)
tree5998018442049c8346674584a3096a826c117125 /lib
parent46a981c3e238935c629f57aa8db0d6938a53474e (diff)
downloadexternal_llvm-57a0efa32240ef03ea318f9ba7680fd2b8609c6e.zip
external_llvm-57a0efa32240ef03ea318f9ba7680fd2b8609c6e.tar.gz
external_llvm-57a0efa32240ef03ea318f9ba7680fd2b8609c6e.tar.bz2
Implement support for dependent libraries. The "source" module's dependent
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
Diffstat (limited to 'lib')
-rw-r--r--lib/Linker/LinkModules.cpp21
-rw-r--r--lib/VMCore/Linker.cpp21
2 files changed, 42 insertions, 0 deletions
diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index 9e67593..f75729b 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -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;
}
diff --git a/lib/VMCore/Linker.cpp b/lib/VMCore/Linker.cpp
index 9e67593..f75729b 100644
--- a/lib/VMCore/Linker.cpp
+++ b/lib/VMCore/Linker.cpp
@@ -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;
}