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llvm-cov: Expect a source file as a positional parameter

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Currently, llvm-cov isn't command-line compatible with gcov, which
accepts a source file name as its first parameter and infers the gcno
and gcda file names from that. This change keeps our -gcda and -gcno
options available for convenience in overriding this behaviour, but
adds the required parameter and inference behaviour as a compatible
default.

llvm-svn: 200417
This commit is contained in:
Justin Bogner 2014-01-29 21:31:34 +00:00
parent 493d668127
commit 25e1dc7514
2 changed files with 27 additions and 23 deletions
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20
test/tools/llvm-cov/llvm-cov.test
View File

@ -5,34 +5,34 @@ RUN: mkdir %t
RUN: cd %t
RUN: cp %p/Inputs/test* .
RUN: llvm-cov -gcno=test.gcno -gcda=test.gcda | diff test_no_options.output -
RUN: llvm-cov -gcno=test.gcno -gcda=test.gcda -f | diff test_-f.output -
RUN: llvm-cov test.c | diff test_no_options.output -
RUN: llvm-cov test.c -f | diff test_-f.output -
RUN: diff -aub test_no_options.cpp.gcov test.cpp.gcov
RUN: diff -aub test_no_options.h.gcov test.h.gcov
RUN: llvm-cov -gcno=test.gcno -gcda=test.gcda -a
RUN: llvm-cov test.c -a
RUN: diff -aub test_-a.cpp.gcov test.cpp.gcov
RUN: diff -aub test_-a.h.gcov test.h.gcov
RUN: llvm-cov -gcno=test.gcno -gcda=test.gcda -a -b | diff test_-b.output -
RUN: llvm-cov test.c -a -b | diff test_-b.output -
# This is expected to fail because gcov doesn't actually output real branch or
# call statistics on a per function basis.
RUN: llvm-cov -gcno=test.gcno -gcda=test.gcda -a -b -f | not diff test_-b_-f.output -
RUN: llvm-cov test.c -a -b -f | not diff test_-b_-f.output -
RUN: diff -aub test_-a_-b.cpp.gcov test.cpp.gcov
RUN: diff -aub test_-a_-b.h.gcov test.h.gcov
RUN: llvm-cov -gcno=test.gcno -gcda=test.gcda -a -b -u
RUN: llvm-cov test.c -a -b -u
RUN: diff -aub test_-a_-b_-u.cpp.gcov test.cpp.gcov
RUN: diff -aub test_-a_-b_-u.h.gcov test.h.gcov
RUN: llvm-cov -gcno=test.gcno -gcda=test.gcda -a -b -c -u
RUN: llvm-cov test.c -a -b -c -u
RUN: diff -aub test_-a_-b_-c_-u.cpp.gcov test.cpp.gcov
RUN: diff -aub test_-a_-b_-c_-u.h.gcov test.h.gcov
RUN: not llvm-cov -gcno=test_read_fail.gcno -gcda=test.gcda
RUN: not llvm-cov test.c -gcno=test_read_fail.gcno
RUN: not llvm-cov -gcno=test.gcno -gcda=test_file_checksum_fail.gcda
RUN: not llvm-cov test.c -gcda=test_file_checksum_fail.gcda
RUN: not llvm-cov -gcno=test.gcno -gcda=test_func_checksum_fail.gcda
RUN: not llvm-cov test.c -gcda=test_func_checksum_fail.gcda
XFAIL: powerpc64, s390x, mips, sparc

30
tools/llvm-cov/llvm-cov.cpp
View File

@ -21,6 +21,9 @@
#include "llvm/Support/system_error.h"
using namespace llvm;
static cl::opt<std::string> SourceFile(cl::Positional, cl::Required,
cl::desc("SOURCEFILE"));
static cl::opt<bool>
DumpGCOV("dump", cl::init(false), cl::desc("dump gcov file"));
@ -56,9 +59,12 @@ int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv, "llvm coverage tool\n");
GCOVFile GF;
if (InputGCNO.empty())
errs() << " " << argv[0] << ": No gcov input file!\n";
InputGCNO = SourceFile.substr(0, SourceFile.rfind(".")) + ".gcno";
if (InputGCDA.empty())
InputGCDA = SourceFile.substr(0, SourceFile.rfind(".")) + ".gcda";
GCOVFile GF;
OwningPtr<MemoryBuffer> GCNO_Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCNO, GCNO_Buff)) {
@ -71,17 +77,15 @@ int main(int argc, char **argv) {
return 1;
}
if (!InputGCDA.empty()) {
OwningPtr<MemoryBuffer> GCDA_Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) {
errs() << InputGCDA << ": " << ec.message() << "\n";
return 1;
}
GCOVBuffer GCDA_GB(GCDA_Buff.get());
if (!GF.readGCDA(GCDA_GB)) {
errs() << "Invalid .gcda File!\n";
return 1;
}
OwningPtr<MemoryBuffer> GCDA_Buff;
if (error_code ec = MemoryBuffer::getFileOrSTDIN(InputGCDA, GCDA_Buff)) {
errs() << InputGCDA << ": " << ec.message() << "\n";
return 1;
}
GCOVBuffer GCDA_GB(GCDA_Buff.get());
if (!GF.readGCDA(GCDA_GB)) {
errs() << "Invalid .gcda File!\n";
return 1;
}
if (DumpGCOV)