libsysprof: Add debuginfod toggle for sysprof-cli inside libsysprof

Signed-off-by: varun-r-mallya <varunrmallya@gmail.com>

src/libsysprof/sysprof-symbols-bundle.c

@@ -36,6 +36,13 @@
 
 G_DEFINE_AUTOPTR_CLEANUP_FUNC (SysprofCaptureReader, sysprof_capture_reader_unref)
 
+/*This global variable is probably not multithreading safe, 
+ *but this is the only way I can currently think of to make this work as intended.
+ *Although, it's written to only before any threads are spawned, so it should be fine. 
+ */
+
+static gboolean enable_debuginfod;
+
 struct _SysprofSymbolsBundle
 {
   SysprofInstrument parent_instance;
@@ -53,6 +60,7 @@ sysprof_symbols_bundle_augment_fiber (gpointer user_data)
 {
   g_autoptr(SysprofDocumentLoader) loader = NULL;
   g_autoptr(SysprofSymbolizer) elf = NULL;
+  g_autoptr(SysprofMultiSymbolizer) multi = NULL;
   g_autoptr(SysprofDocument) document = NULL;
   g_autoptr(GBytes) bytes = NULL;
   SysprofRecording *recording = user_data;
@@ -69,11 +77,24 @@ sysprof_symbols_bundle_augment_fiber (gpointer user_data)
     return dex_future_new_for_error (g_steal_pointer (&error));
   g_assert (SYSPROF_IS_DOCUMENT_LOADER (loader));
 
-  /* Only symbolize ELF symbols as the rest can be symbolized
-   * by the application without having to resort to decoding.
-   */
+  multi = sysprof_multi_symbolizer_new ();
+
   elf = sysprof_elf_symbolizer_new ();
-  sysprof_document_loader_set_symbolizer (loader, elf);
+  sysprof_multi_symbolizer_take (multi, SYSPROF_SYMBOLIZER (g_steal_pointer (&elf)));
+
+#if HAVE_DEBUGINFOD
+if (enable_debuginfod)
+    {
+      g_autoptr(SysprofSymbolizer) debuginfod = NULL;
+      g_autoptr(GError) debuginfod_error = NULL;
+      if (!(debuginfod = sysprof_debuginfod_symbolizer_new (&debuginfod_error)))
+        g_warning ("Failed to create debuginfod symbolizer: %s", debuginfod_error->message);
+      else
+        sysprof_multi_symbolizer_take (multi, g_steal_pointer (&debuginfod));
+    }
+#endif
+
+  sysprof_document_loader_set_symbolizer (loader, SYSPROF_SYMBOLIZER (multi));
 
   if (!(document = dex_await_object (_sysprof_document_loader_load (loader), &error)))
     return dex_future_new_for_error (g_steal_pointer (&error));
@@ -129,5 +150,13 @@ sysprof_symbols_bundle_init (SysprofSymbolsBundle *self)
 SysprofInstrument *
 sysprof_symbols_bundle_new (void)
 {
+  enable_debuginfod = TRUE;
   return g_object_new (SYSPROF_TYPE_SYMBOLS_BUNDLE, NULL);
 }
+
+SysprofInstrument *
+sysprof_symbols_bundle_new_without_debuginfod (void)
+{
+  enable_debuginfod = FALSE;
+  return g_object_new (SYSPROF_TYPE_SYMBOLS_BUNDLE, NULL);
+}

src/libsysprof/sysprof-symbols-bundle.h

@@ -36,6 +36,8 @@ SYSPROF_AVAILABLE_IN_ALL
 GType              sysprof_symbols_bundle_get_type (void) G_GNUC_CONST;
 SYSPROF_AVAILABLE_IN_ALL
 SysprofInstrument *sysprof_symbols_bundle_new      (void);
+SYSPROF_AVAILABLE_IN_ALL
+SysprofInstrument *sysprof_symbols_bundle_new_without_debuginfod (void);
 
 G_DEFINE_AUTOPTR_CLEANUP_FUNC (SysprofSymbolsBundle, g_object_unref)
 

src/sysprof-cli/sysprof-cli.c

@@ -46,6 +46,7 @@ G_DEFINE_AUTOPTR_CLEANUP_FUNC (SysprofCaptureReader, sysprof_capture_reader_unre
 G_DEFINE_AUTOPTR_CLEANUP_FUNC (SysprofCaptureWriter, sysprof_capture_writer_unref)
 
 static gboolean no_decode;
+static gboolean enable_debuginfod;
 static GMainLoop *main_loop;
 static SysprofRecording *active_recording;
 
@@ -337,6 +338,7 @@ main (int   argc,
     { "buffer-size", 0, 0, G_OPTION_ARG_INT, &n_buffer_pages, N_("The size of the buffer in pages (1 = 1 page)") },
     { "monitor-bus", 0, 0, G_OPTION_ARG_STRING_ARRAY, &monitor_bus, N_("Additional D-Bus address to monitor") },
     { "stack-size", 0, 0, G_OPTION_ARG_INT, &stack_size, N_("Stack size to copy for unwinding in user-space") },
+    { "no-debuginfod", 0, 0, G_OPTION_ARG_NONE, &enable_debuginfod, N_("Do not use debuginfod to resolve symbols") },
     { NULL }
   };
 
@@ -550,7 +552,12 @@ Examples:\n\
     sysprof_profiler_add_instrument (profiler, sysprof_disk_usage_new ());
 
   if (!no_decode)
-    sysprof_profiler_add_instrument (profiler, sysprof_symbols_bundle_new ());
+    {
+      if(enable_debuginfod)
+        sysprof_profiler_add_instrument (profiler, sysprof_symbols_bundle_new_without_debuginfod ());
+      else
+        sysprof_profiler_add_instrument (profiler, sysprof_symbols_bundle_new ());
+    }
 
   if (!no_cpu)
     sysprof_profiler_add_instrument (profiler, sysprof_cpu_usage_new ());

src/sysprof/sysprof-recording-template.c

@@ -795,16 +795,16 @@ sysprof_recording_template_create_loader (SysprofRecordingTemplate  *self,
   sysprof_document_loader_set_symbolizer (loader, SYSPROF_SYMBOLIZER (multi));
 
 #if HAVE_DEBUGINFOD
-if (self->debuginfod)
-    {
-      g_autoptr(SysprofSymbolizer) debuginfod = NULL;
-      g_autoptr(GError) debuginfod_error = NULL;
-
-      if (!(debuginfod = sysprof_debuginfod_symbolizer_new (&debuginfod_error)))
-        g_warning ("Failed to create debuginfod symbolizer: %s", debuginfod_error->message);
-      else
-        sysprof_multi_symbolizer_take (multi, g_steal_pointer (&debuginfod));
-    }
+  if (self->debuginfod)
+      {
+        g_autoptr(SysprofSymbolizer) debuginfod = NULL;
+        g_autoptr(GError) debuginfod_error = NULL;
+        
+        if (!(debuginfod = sysprof_debuginfod_symbolizer_new (&debuginfod_error)))
+          g_warning ("Failed to create debuginfod symbolizer: %s", debuginfod_error->message);
+        else
+          sysprof_multi_symbolizer_take (multi, g_steal_pointer (&debuginfod));
+      }
 #endif
 
   return g_steal_pointer (&loader);