kallsyms: make SpKallsyms more testable

This allows us to pass in the file to read from, and adds a quick test
case to view the parsed output. It also fixes a base-10 vs base-16
mistake in parsing addresses.

tests/meson.build

@@ -18,6 +18,11 @@ test_capture_cursor = executable('test-capture-cursor',
 )
 test('test-capture-cursor', test_capture_cursor, env: test_env)
 
+test_kallsyms = executable('test-kallsyms',
+  ['test-kallsyms.c', '../lib/sp-kallsyms.c'],
+  dependencies: libsysprof_dep,
+)
+
 if get_option('enable_gtk')
 
   test_model_filter = executable('test-model-filter',

tests/test-kallsyms.c

@@ -0,0 +1,34 @@
+#include "../lib/sp-address.h"
+#include "../lib/sp-kallsyms.h"
+
+#include <glib.h>
+#include <stdlib.h>
+
+int
+main (gint argc,
+      gchar *argv[])
+{
+  g_autoptr(SpKallsyms) kallsyms = NULL;
+  const gchar *name;
+  SpAddress addr = 0;
+  guint8 type;
+
+  if (argc < 2)
+    {
+      g_printerr ("usage: %s FILE\n", argv[0]);
+      return EXIT_FAILURE;
+    }
+
+  kallsyms = sp_kallsyms_new (argv[1]);
+
+  while (sp_kallsyms_next (kallsyms, &name, &addr, &type))
+    {
+      g_assert (name != NULL);
+      g_assert (addr != 0);
+      g_assert (type != 0);
+
+      g_print ("%s %lx\n", name, addr);
+    }
+
+  return EXIT_SUCCESS;
+}