Initial commitHEADmain

4 files changed, 77 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..5d843f5
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,26 @@
+all:cov.json coverage.json
+
+cov.json:default.profraw
+	llvm-profdata merge default.profraw -sparse -o merged.profdata
+	llvm-cov export -instr-profile merged.profdata ./exec . --format=text -Xdemangler c++filt -Xdemangler -n > cov.json
+
+coverage.json:.coverage
+	coverage json
+
+.coverage:main.py
+	coverage run main.py
+
+default.profraw:exec
+	./exec
+
+exec:main.cpp
+	clang++ -o exec main.cpp -O3 -fprofile-instr-generate -fcoverage-mapping
+
+clean:
+	-rm exec
+	-rm default.profraw
+	-rm coverage.json
+	-rm cov.json
+	-rm .coverage
+
+.phony:all clean
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..aef800e
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,11 @@
+#include <iostream>
+
+int f(int i) {
+    if (i <= 1) return 1;
+    return f(i - 1) + f(i - 2);
+}
+
+int main() {
+    std::cout << "hello world!" << std::endl;
+    return 0;
+}
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..895468a
--- /dev/null
+++ b/main.py
@@ -0,0 +1,10 @@
+def f(i: int) -> int:
+    if i < 2:
+        return 1
+    return f(i - 1) + f(i - 2)
+
+def main():
+    print("hello world!")
+
+if __name__ == '__main__':
+    main()
\ No newline at end of file
diff --git a/readcov.py b/readcov.py
new file mode 100644
index 0000000..de490dc
--- /dev/null
+++ b/readcov.py
@@ -0,0 +1,30 @@
+import json
+
+def process_cpp_coverage(parsed: dict):
+    for data in cov["data"]:
+        for file in data["files"]:
+            print(file["filename"])
+            for seg in file["segments"]:
+                # https://github.com/llvm/llvm-project/blob/main/llvm/tools/llvm-cov/CoverageExporterJson.cpp
+                print("row, col, cnt, has_cnt, is_reg_entry, is_gap", seg)
+    return
+
+def process_py_coverage(parsed: dict):
+    for filename, vals in parsed["files"].items():
+        print(filename)
+        print(vals["missing_lines"])
+    return
+
+def json_dispatch(parsed: dict):
+    if "type" in parsed and parsed["type"] == "llvm.coverage.json.export":
+        process_cpp_coverage(parsed)
+    elif "meta" in parsed:
+        process_py_coverage(parsed)
+    return
+
+if __name__ == "__main__":
+    flist = ["cov.json", "coverage.json"]
+    for file in flist:
+        with open(file, "rt") as cov_json:
+            cov = json.load(cov_json)
+            json_dispatch(cov)