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authorChris Lattner <sabre@nondot.org>2001-10-13 07:06:23 +0000
committerChris Lattner <sabre@nondot.org>2001-10-13 07:06:23 +0000
commit075a0b771e1d76ce64f4628b7a680ef6a0486a4b (patch)
tree590a9994ac3fd54bf491aa13d5964f0fbbc8c53f /tools/llvm-link
parent38c13463f6db53242019a0cc1af1367f15686d14 (diff)
Add new linker
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@780 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-link')
-rw-r--r--tools/llvm-link/Makefile6
-rw-r--r--tools/llvm-link/llvm-link.cpp64
2 files changed, 70 insertions, 0 deletions
diff --git a/tools/llvm-link/Makefile b/tools/llvm-link/Makefile
new file mode 100644
index 0000000000..599d4cb965
--- /dev/null
+++ b/tools/llvm-link/Makefile
@@ -0,0 +1,6 @@
+LEVEL = ../..
+
+TOOLNAME = link
+USEDLIBS = transforms bcreader bcwriter asmwriter analysis vmcore asmwriter support
+
+include $(LEVEL)/Makefile.common
diff --git a/tools/llvm-link/llvm-link.cpp b/tools/llvm-link/llvm-link.cpp
new file mode 100644
index 0000000000..8dbcf4895c
--- /dev/null
+++ b/tools/llvm-link/llvm-link.cpp
@@ -0,0 +1,64 @@
+//===----------------------------------------------------------------------===//
+// LLVM 'LINK' UTILITY
+//
+// This utility may be invoked in the following manner:
+// link a.bc b.bc c.bc -o x.bc
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Transforms/Linker.h"
+#include "llvm/Bytecode/Reader.h"
+#include "llvm/Bytecode/Writer.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Module.h"
+#include "llvm/Method.h"
+#include <fstream.h>
+#include <memory>
+
+
+cl::StringList InputFilenames("", "Load <arg> files, linking them together",
+ cl::OneOrMore);
+cl::String OutputFilename("o", "Override output filename", cl::NoFlags, "-");
+cl::Flag Force ("f", "Overwrite output files", cl::NoFlags, false);
+
+
+int main(int argc, char **argv) {
+ cl::ParseCommandLineOptions(argc, argv, " llvm linker\n");
+ assert(InputFilenames.size() > 0 && "OneOrMore is not working");
+
+ std::auto_ptr<Module> Composite(ParseBytecodeFile(InputFilenames[0]));
+ if (Composite.get() == 0) {
+ cerr << "Error opening bytecode file: '" << InputFilenames[0] << "'\n";
+ return 1;
+ }
+
+ for (unsigned i = 1; i < InputFilenames.size(); ++i) {
+ auto_ptr<Module> M(ParseBytecodeFile(InputFilenames[i]));
+ if (M.get() == 0) {
+ cerr << "Error opening bytecode file: '" << InputFilenames[i] << "'\n";
+ return 1;
+ }
+
+ string ErrorMessage;
+ if (LinkModules(Composite.get(), M.get(), &ErrorMessage)) {
+ cerr << "Error linking in '" << InputFilenames[i] << "': "
+ << ErrorMessage << endl;
+ return 1;
+ }
+ }
+
+ ostream *Out = &cout; // Default to printing to stdout...
+ if (OutputFilename != "-") {
+ Out = new ofstream(OutputFilename.c_str(),
+ (Force ? 0 : ios::noreplace)|ios::out);
+ if (!Out->good()) {
+ cerr << "Error opening '" << OutputFilename << "'!\n";
+ return 1;
+ }
+ }
+
+ WriteBytecodeToFile(Composite.get(), *Out);
+
+ if (Out != &cout) delete Out;
+ return 0;
+}