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Retry: [llvm-cov] Add support for exporting coverage data to JSON

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This enables users to export coverage information as portable JSON for use by
analysis tools and storage in document based databases.

The export sub-command is invoked just like the others:

  llvm-cov export -instr-profile path/to/foo.profdata path/to/foo.binary

The resulting JSON contains a list of files and functions. Every file object
contains a list of segments, expansions, and a summary of the file's region,
function, and line coverage. Every function object contains the function's name
and regions. There is also a total summary for the entire object file.

Changes since the initial commit (r276813):

  - Fixed the regexes in the tests to handle Windows filepaths.

Patch by Eddie Hurtig!

Differential Revision: https://reviews.llvm.org/D22651

llvm-svn: 276818
This commit is contained in:
Vedant Kumar
2016-07-26 22:50:58 +00:00
parent a333db87a7
commit 7101d73c71
17 changed files with 758 additions and 4 deletions
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12
llvm/tools/llvm-cov/llvm-cov.cpp
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@@ -30,6 +30,9 @@ int showMain(int argc, const char *argv[]);
/// \brief The main entry point for the 'report' subcommand.
int reportMain(int argc, const char *argv[]);
/// \brief The main entry point for the 'export' subcommand.
int exportMain(int argc, const char *argv[]);
/// \brief The main entry point for the 'convert-for-testing' subcommand.
int convertForTestingMain(int argc, const char *argv[]);
@@ -38,12 +41,14 @@ int gcovMain(int argc, const char *argv[]);
/// \brief Top level help.
static int helpMain(int argc, const char *argv[]) {
errs() << "Usage: llvm-cov {gcov|report|show} [OPTION]...\n\n"
errs() << "Usage: llvm-cov {export|gcov|report|show} [OPTION]...\n\n"
<< "Shows code coverage information.\n\n"
<< "Subcommands:\n"
<< " export: Export instrprof file to structured format.\n"
<< " gcov: Work with the gcov format.\n"
<< " show: Annotate source files using instrprof style coverage.\n"
<< " report: Summarize instrprof style coverage information.\n";
<< " report: Summarize instrprof style coverage information.\n"
<< " show: Annotate source files using instrprof style coverage.\n";
return 0;
}
@@ -68,6 +73,7 @@ int main(int argc, const char **argv) {
typedef int (*MainFunction)(int, const char *[]);
MainFunction Func = StringSwitch<MainFunction>(argv[1])
.Case("convert-for-testing", convertForTestingMain)
.Case("export", exportMain)
.Case("gcov", gcovMain)
.Case("report", reportMain)
.Case("show", showMain)