Simpleperf: add test for reporting callgraph of shared libraries in apk file.

Also add comment for how to generate each perf.data in testdata/.
Add --log <leve> argument in unit test to help debugging.

Bug: 26962895
Change-Id: Iaa5a81cd8da5174d5b5b4e7847811e2432bf0db8

1 files changed, 17 insertions, 0 deletions

diff --git a/simpleperf/utils.cpp b/simpleperf/utils.cpp
index f2418a65..dd09fbd3 100644
--- a/simpleperf/utils.cpp
+++ b/simpleperf/utils.cpp
@@ -25,6 +25,7 @@
 #include <unistd.h>
 
 #include <algorithm>
+#include <map>
 #include <string>
 
 #include <android-base/file.h>
@@ -230,3 +231,19 @@ bool XzDecompress(const std::string& compressed_data, std::string* decompressed_
   *decompressed_data = std::move(dst);
   return true;
 }
+
+bool GetLogSeverity(const std::string& name, android::base::LogSeverity* severity) {
+  static std::map<std::string, android::base::LogSeverity> log_severity_map = {
+      {"verbose", android::base::VERBOSE},
+      {"debug", android::base::DEBUG},
+      {"warning", android::base::WARNING},
+      {"error", android::base::ERROR},
+      {"fatal", android::base::FATAL},
+  };
+  auto it = log_severity_map.find(name);
+  if (it != log_severity_map.end()) {
+    *severity = it->second;
+    return true;
+  }
+  return false;
+}