//===----------------------------------------------------------------------===//
#include "LTOBugPoint.h"
+#include "llvm/Support/SystemUtils.h"
+#include "llvm/System/Path.h"
+#include <iostream>
+/// LTOBugPoint -- Constructor. Popuate list of linker options and
+/// list of linker input files.
LTOBugPoint::LTOBugPoint(std::istream &args, std::istream &ins) {
// Read linker options. Order is important here.
while(getline(ins, inFile))
LinkerInputFiles.push_back(inFile);
}
+
+/// findTroubleMakers - Find minimum set of input files that causes error
+/// identified by the script.
+bool
+LTOBugPoint::findTroubleMakers(llvm::SmallVector<std::string, 4> &TroubleMakers,
+ std::string &Script) {
+
+ // First, build native object files set.
+ bool bitcodeFileSeen = false;
+ for(llvm::SmallVector<std::string, 16>::iterator I = LinkerInputFiles.begin(),
+ E = LinkerInputFiles.end(); I != E; ++I) {
+ std::string &path = *I;
+ if (llvm::sys::Path(path.c_str()).isBitcodeFile())
+ bitcodeFileSeen = true;
+ }
+
+ if (!bitcodeFileSeen) {
+ std::cerr << "lto-bugpoint: Error: Unable to help!";
+ std::cerr << " Need at least one input file that contains llvm bitcode\n";
+ return false;
+ }
+
+ return true;
+}
LTOBugPoint(std::istream &args, std::istream &ins);
+ /// findTroubleMakers - Find minimum set of input files that causes error
+ /// identified by the script.
+ bool findTroubleMakers(llvm::SmallVector<std::string, 4> &TroubleMakers,
+ std::string &Script);
private:
/// LinkerInputFiles - This is a list of linker input files. Once populated
/// this list is not modified.
llvm::SmallVector<std::string, 16> LinkerInputFiles;
+
+ /// LinkerOptions - List of linker command line options.
llvm::SmallVector<std::string, 16> LinkerOptions;
+ /// NativeInputFiles - This is a list of input files that are not llvm
+ /// bitcode files. The order in this list is important. The a file
+ /// in LinkerInputFiles at index 4 is a llvm bitcode file then the file
+ /// at index 4 in NativeInputFiles is corresponding native object file.
+ llvm::SmallVector<std::string, 16> NativeInputFiles;
+
};
TOOLNAME = lto-bugpoint
+LINK_COMPONENTS := system
+
REQUIRES_EH := 1
include $(LEVEL)/Makefile.common
// Third argument is absolute path to the validation script. This
// script is used to validate LTO error under investigation.
- std::istream *ValidationScriptFile = new std::ifstream(argv[3], input_mode);
- if (!ValidationScriptFile->good()) {
- std::cerr << argv[0] << ": error opening " << argv[3] << "!\n";
- delete LinkerArgsFile;
- delete LinkerInputsFile;
- return 1;
- }
-
+ std::string ValidationScript = argv[3];
LTOBugPoint bugFinder(*LinkerArgsFile, *LinkerInputsFile);
+ llvm::SmallVector<std::string, 4> TroubleMakers;
+ if (!bugFinder.findTroubleMakers(TroubleMakers, ValidationScript))
+ return 1;
+
return 0;
} catch (const std::string& msg) {
std::cerr << argv[0] << ": " << msg << "\n";