[llvm-cov] Add the project summary to each source file coverage report.

This patch includes the following changes:
- Included header "Code coverage report" and include the date that the report was created.
- Included title (as specified in a command line option, (i.e llvm-cov  -project-title="Simple Test")
- In the summary, list the elf files that the source code file has contributed to.
- Used column heading for "Line No.", "Count No.", Source".

Differential Revision: https://reviews.llvm.org/D23345

llvm-svn: 279628

1 files changed, 31 insertions, 5 deletions

diff --git a/llvm/tools/llvm-cov/CodeCoverage.cpp b/llvm/tools/llvm-cov/CodeCoverage.cpp
index 6d7c7ae..019f18a 100644
--- a/llvm/tools/llvm-cov/CodeCoverage.cpp
+++ b/llvm/tools/llvm-cov/CodeCoverage.cpp
@@ -210,9 +210,9 @@ CodeCoverageTool::createFunctionView(const FunctionRecord &Function,
     return nullptr;
 
   auto Expansions = FunctionCoverage.getExpansions();
-  auto View = SourceCoverageView::create(getSymbolForHumans(Function.Name),
-                                         SourceBuffer.get(), ViewOpts,
-                                         std::move(FunctionCoverage));
+  auto View = SourceCoverageView::create(
+      getSymbolForHumans(Function.Name), SourceBuffer.get(), ViewOpts,
+      std::move(FunctionCoverage), /*FunctionView=*/true);
   attachExpansionSubViews(*View, Expansions, Coverage);
 
   return View;
@@ -238,7 +238,7 @@ CodeCoverageTool::createSourceFileView(StringRef SourceFile,
     auto SubViewExpansions = SubViewCoverage.getExpansions();
     auto SubView = SourceCoverageView::create(
         getSymbolForHumans(Function->Name), SourceBuffer.get(), ViewOpts,
-        std::move(SubViewCoverage));
+        std::move(SubViewCoverage), /*FunctionView=*/true);
     attachExpansionSubViews(*SubView, SubViewExpansions, Coverage);
 
     if (SubView) {
@@ -463,6 +463,12 @@ int CodeCoverageTool::run(Command Cmd, int argc, const char **argv) {
     CompareFilenamesOnly = FilenameEquivalence;
 
     ViewOpts.Format = Format;
+    SmallString<128> ObjectFilePath(this->ObjectFilename);
+    if (std::error_code EC = sys::fs::make_absolute(ObjectFilePath)) {
+      error(EC.message(), this->ObjectFilename);
+      return 1;
+    }
+    ViewOpts.ObjectFilename = ObjectFilePath.c_str();
     switch (ViewOpts.Format) {
     case CoverageViewOptions::OutputFormat::Text:
       ViewOpts.Colors = UseColor == cl::BOU_UNSET
@@ -589,6 +595,10 @@ int CodeCoverageTool::show(int argc, const char **argv,
       cl::desc(
           "Set tab expansion size for html coverage reports (default = 2)"));
 
+  cl::opt<std::string> ProjectTitle(
+      "project-title", cl::Optional,
+      cl::desc("Set project title for the coverage report"));
+
   auto Err = commandLineParser(argc, argv);
   if (Err)
     return Err;
@@ -602,6 +612,7 @@ int CodeCoverageTool::show(int argc, const char **argv,
   ViewOpts.ShowFunctionInstantiations = ShowInstantiations;
   ViewOpts.ShowOutputDirectory = ShowOutputDirectory;
   ViewOpts.TabSize = TabSize;
+  ViewOpts.ProjectTitle = ProjectTitle;
 
   if (ViewOpts.hasOutputDirectory()) {
     if (auto E = sys::fs::create_directories(ViewOpts.ShowOutputDirectory)) {
@@ -610,6 +621,19 @@ int CodeCoverageTool::show(int argc, const char **argv,
     }
   }
 
+  sys::fs::file_status Status;
+  if (sys::fs::status(PGOFilename, Status)) {
+    error("profdata file error: can not get the file status. \n");
+    return 1;
+  }
+
+  auto ModifiedTime = Status.getLastModificationTime();
+  std::string ModifiedTimeStr = ModifiedTime.str();
+  size_t found = ModifiedTimeStr.rfind(":");
+  ViewOpts.CreatedTimeStr = (found != std::string::npos)
+                                ? "Created: " + ModifiedTimeStr.substr(0, found)
+                                : "Created: " + ModifiedTimeStr;
+
   auto Coverage = load();
   if (!Coverage)
     return 1;
@@ -643,7 +667,9 @@ int CodeCoverageTool::show(int argc, const char **argv,
   }
 
   // Show files
-  bool ShowFilenames = SourceFiles.size() != 1;
+  bool ShowFilenames =
+      (SourceFiles.size() != 1) ||
+      (ViewOpts.Format == CoverageViewOptions::OutputFormat::HTML);
 
   if (SourceFiles.empty())
     // Get the source files from the function coverage mapping.