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llvm-cov: Support specifying multiple source files

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Make llvm-cov compatible with gcov for cases where multiple files are
specified on the command line. That is, loop over each one and report
coverage, and report errors on stderr only rather than via return
code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211959 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Justin Bogner 2014-06-27 20:41:25 +00:00
parent 5bbd607fb3
commit 1cfa342dc1
2 changed files with 34 additions and 29 deletions
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6
test/tools/llvm-cov/llvm-cov.test
View File

@ -102,12 +102,12 @@ RUN: diff -aub test_no_gcda.cpp.gcov test.cpp.gcov
RUN: diff -aub test_no_gcda.h.gcov test.h.gcov
# Invalid gcno file.
RUN: not llvm-cov test.c -gcno=test_read_fail.gcno
RUN: llvm-cov test.c -gcno=test_read_fail.gcno
# Bad file checksum on gcda.
RUN: not llvm-cov test.c -gcda=test_file_checksum_fail.gcda
RUN: llvm-cov test.c -gcda=test_file_checksum_fail.gcda
# Bad function checksum on gcda
RUN: not llvm-cov test.c -gcda=test_func_checksum_fail.gcda
RUN: llvm-cov test.c -gcda=test_func_checksum_fail.gcda
XFAIL: powerpc64-, s390x, mips-, mips64-, sparc

57
tools/llvm-cov/llvm-cov.cpp
View File

@ -24,8 +24,8 @@
#include <system_error>
using namespace llvm;
static cl::opt<std::string> SourceFile(cl::Positional, cl::Required,
cl::desc("SOURCEFILE"));
static cl::list<std::string> SourceFiles(cl::Positional, cl::OneOrMore,
cl::desc("SOURCEFILE"));
static cl::opt<bool> AllBlocks("a", cl::Grouping, cl::init(false),
cl::desc("Display all basic blocks"));
@ -76,15 +76,7 @@ static cl::opt<std::string> InputGCNO("gcno", cl::cat(DebugCat), cl::init(""),
static cl::opt<std::string> InputGCDA("gcda", cl::cat(DebugCat), cl::init(""),
cl::desc("Override inferred gcda file"));
//===----------------------------------------------------------------------===//
int main(int argc, char **argv) {
// Print a stack trace if we signal out.
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
cl::ParseCommandLineOptions(argc, argv, "LLVM code coverage tool\n");
void reportCoverage(StringRef SourceFile) {
SmallString<128> CoverageFileStem(ObjectDir);
if (CoverageFileStem.empty()) {
// If no directory was specified with -o, look next to the source file.
@ -97,37 +89,38 @@ int main(int argc, char **argv) {
// A file was given. Ignore the source file and look next to this file.
sys::path::replace_extension(CoverageFileStem, "");
if (InputGCNO.empty())
InputGCNO = (CoverageFileStem.str() + ".gcno").str();
if (InputGCDA.empty())
InputGCDA = (CoverageFileStem.str() + ".gcda").str();
std::string GCNO = InputGCNO.empty()
? std::string(CoverageFileStem.str()) + ".gcno"
: InputGCNO;
std::string GCDA = InputGCDA.empty()
? std::string(CoverageFileStem.str()) + ".gcda"
: InputGCDA;
GCOVFile GF;
std::unique_ptr<MemoryBuffer> GCNO_Buff;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) {
errs() << InputGCNO << ": " << ec.message() << "\n";
return 1;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(GCNO, GCNO_Buff)) {
errs() << GCNO << ": " << ec.message() << "\n";
return;
}
GCOVBuffer GCNO_GB(GCNO_Buff.get());
if (!GF.readGCNO(GCNO_GB)) {
errs() << "Invalid .gcno File!\n";
return 1;
return;
}
std::unique_ptr<MemoryBuffer> GCDA_Buff;
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) {
if (std::error_code ec = MemoryBuffer::getFileOrSTDIN(GCDA, GCDA_Buff)) {
if (ec != errc::no_such_file_or_directory) {
errs() << InputGCDA << ": " << ec.message() << "\n";
return 1;
errs() << GCDA << ": " << ec.message() << "\n";
return;
}
// Clear the filename to make it clear we didn't read anything.
InputGCDA = "-";
GCDA = "-";
} else {
GCOVBuffer GCDA_GB(GCDA_Buff.get());
if (!GF.readGCDA(GCDA_GB)) {
errs() << "Invalid .gcda File!\n";
return 1;
return;
}
}
@ -138,6 +131,18 @@ int main(int argc, char **argv) {
PreservePaths, UncondBranch, LongNames, NoOutput);
FileInfo FI(Options);
GF.collectLineCounts(FI);
FI.print(SourceFile, InputGCNO, InputGCDA);
FI.print(SourceFile, GCNO, GCDA);
}
int main(int argc, char **argv) {
// Print a stack trace if we signal out.
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
cl::ParseCommandLineOptions(argc, argv, "LLVM code coverage tool\n");
for (const auto &SourceFile : SourceFiles)
reportCoverage(SourceFile);
return 0;
}