libsysprof: add test for leak detection

This commit is contained in:
Christian Hergert
2023-08-14 15:58:34 -07:00
parent f7a32750e2
commit 4967d5faeb
2 changed files with 249 additions and 0 deletions

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@ -17,6 +17,7 @@ libsysprof_testsuite = {
'test-callgraph' : {'skip': true},
'test-capture-model' : {'skip': true},
'test-elf-loader' : {'skip': true},
'test-leak-detector' : {'skip': true},
'test-list-counters' : {'skip': true},
'test-list-cpu' : {'skip': true},
'test-list-files' : {'skip': true},

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@ -0,0 +1,248 @@
/* test-leak-detector.c
*
* Copyright 2023 Christian Hergert <chergert@redhat.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* SPDX-License-Identifier: GPL-3.0-or-later
*/
#include "config.h"
#include <glib/gi18n.h>
#include <locale.h>
#include <sysprof.h>
#include "sysprof-document-private.h"
#include "sysprof-document-bitset-index-private.h"
#include "sysprof-leak-detector-private.h"
typedef struct _Augment
{
guint64 toplevel : 1;
guint64 size : 63;
guint32 total;
} Augment;
static char *kallsyms_path;
static gboolean include_threads;
static GEnumClass *category_class;
static gboolean summary_only;
static const GOptionEntry entries[] = {
{ "kallsyms", 'k', 0, G_OPTION_ARG_FILENAME, &kallsyms_path, "The path to kallsyms to use for decoding", "PATH" },
{ "threads", 't', 0, G_OPTION_ARG_NONE, &include_threads, "Include threads in the stack traces" },
{ "summary", 's', 0, G_OPTION_ARG_NONE, &summary_only, "Only show summary" },
{ 0 }
};
static void
print_callgraph (GListModel *model,
guint depth,
guint total)
{
guint n_items = g_list_model_get_n_items (model);
for (guint i = 0; i < n_items; i++)
{
g_autoptr(SysprofCallgraphFrame) frame = g_list_model_get_item (model, i);
SysprofSymbol *symbol = sysprof_callgraph_frame_get_symbol (frame);
Augment *aug = sysprof_callgraph_frame_get_augment (frame);
SysprofCallgraphCategory category = sysprof_callgraph_frame_get_category (frame);
const char*category_name = g_enum_get_value (category_class, category)->value_nick;
char tstr[16];
g_snprintf (tstr, sizeof tstr, "%.2lf%%", 100. * (aug->total / (double)total));
g_print (" [%6u] [%8s] ", aug->total, tstr);
for (guint j = 0; j < depth; j++)
g_print (" ");
g_print ("%s [%s]\n", sysprof_symbol_get_name (symbol), category_name);
print_callgraph (G_LIST_MODEL (frame), depth+1, total);
}
}
static void
summarize_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
SysprofCallgraphFrame *frame = SYSPROF_CALLGRAPH_FRAME (object);
GMainLoop *main_loop = user_data;
g_autoptr(GError) error = NULL;
g_autoptr(GListModel) model = NULL;
guint n_items;
model = sysprof_callgraph_frame_summarize_finish (frame, result, &error);
g_assert_no_error (error);
g_assert_nonnull (model);
g_assert_true (G_IS_LIST_MODEL (model));
g_print ("\n\nSummary\n");
n_items = g_list_model_get_n_items (model);
for (guint i = 0; i < n_items; i++)
{
g_autoptr(SysprofCategorySummary) summary = g_list_model_get_item (model, i);
g_assert_nonnull (summary);
g_assert_true (SYSPROF_IS_CATEGORY_SUMMARY (summary));
g_print ("%s: %lf\n",
g_enum_to_string (SYSPROF_TYPE_CALLGRAPH_CATEGORY,
sysprof_category_summary_get_category (summary)),
sysprof_category_summary_get_fraction (summary));
}
g_main_loop_quit (main_loop);
}
static void
callgraph_cb (GObject *object,
GAsyncResult *result,
gpointer user_data)
{
SysprofDocument *document = SYSPROF_DOCUMENT (object);
GMainLoop *main_loop = user_data;
g_autoptr(GError) error = NULL;
g_autoptr(SysprofCallgraph) callgraph = sysprof_document_callgraph_finish (document, result, &error);
g_autoptr(SysprofCallgraphFrame) root = NULL;
Augment *aug;
g_assert_no_error (error);
g_assert_true (SYSPROF_IS_CALLGRAPH (callgraph));
root = g_list_model_get_item (G_LIST_MODEL (callgraph), 0);
aug = sysprof_callgraph_frame_get_augment (root);
if (!summary_only)
{
g_print (" Size Percent\n");
print_callgraph (G_LIST_MODEL (callgraph), 0, aug->total);
}
sysprof_callgraph_frame_summarize_async (root, NULL, summarize_cb, main_loop);
}
static void
augment_cb (SysprofCallgraph *callgraph,
SysprofCallgraphNode *node,
SysprofDocumentFrame *frame,
gboolean summarize,
gpointer user_data)
{
Augment *aug;
gint64 size;
g_assert (SYSPROF_IS_CALLGRAPH (callgraph));
g_assert (node != NULL);
g_assert (SYSPROF_IS_DOCUMENT_ALLOCATION (frame));
g_assert (user_data == NULL);
size = sysprof_document_allocation_get_size (SYSPROF_DOCUMENT_ALLOCATION (frame));
aug = sysprof_callgraph_get_augment (callgraph, node);
aug->toplevel = TRUE;
aug->size += size;
for (; node ; node = sysprof_callgraph_node_parent (node))
{
aug = sysprof_callgraph_get_augment (callgraph, node);
aug->total += size;
}
}
int
main (int argc,
char *argv[])
{
g_autoptr(GOptionContext) context = g_option_context_new ("- test callgraph generation");
g_autoptr(GMainLoop) main_loop = g_main_loop_new (NULL, FALSE);
g_autoptr(SysprofDocumentLoader) loader = NULL;
g_autoptr(SysprofDocument) document = NULL;
g_autoptr(SysprofMultiSymbolizer) multi = NULL;
g_autoptr(GListModel) records = NULL;
g_autoptr(EggBitset) allocs = NULL;
g_autoptr(EggBitset) leaks = NULL;
g_autoptr(GTimer) timer = NULL;
g_autoptr(GError) error = NULL;
SysprofCallgraphFlags flags = 0;
double elapsed;
setlocale (LC_ALL, "");
bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
textdomain (GETTEXT_PACKAGE);
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error))
g_error ("%s", error->message);
if (argc < 2)
g_error ("usage: %s CAPTURE_FILE", argv[0]);
category_class = g_type_class_ref (SYSPROF_TYPE_CALLGRAPH_CATEGORY);
multi = sysprof_multi_symbolizer_new ();
if (kallsyms_path)
{
g_autoptr(GFile) kallsyms_file = g_file_new_for_path (kallsyms_path);
GFileInputStream *kallsyms_stream = g_file_read (kallsyms_file, NULL, NULL);
sysprof_multi_symbolizer_take (multi, sysprof_kallsyms_symbolizer_new_for_symbols (G_INPUT_STREAM (kallsyms_stream)));
}
else
{
sysprof_multi_symbolizer_take (multi, sysprof_kallsyms_symbolizer_new ());
}
sysprof_multi_symbolizer_take (multi, sysprof_elf_symbolizer_new ());
sysprof_multi_symbolizer_take (multi, sysprof_jitmap_symbolizer_new ());
loader = sysprof_document_loader_new (argv[1]);
sysprof_document_loader_set_symbolizer (loader, SYSPROF_SYMBOLIZER (multi));
if (!(document = sysprof_document_loader_load (loader, NULL, &error)))
g_error ("Failed to load document: %s", error->message);
allocs = _sysprof_document_get_allocations (document);
g_print ("Analyzing records for leaks...\n");
timer = g_timer_new ();
leaks = sysprof_leak_detector_detect (document, allocs);
elapsed = g_timer_elapsed (timer, NULL);
g_print ("Done in %lf seconds\n", elapsed);
records = _sysprof_document_bitset_index_new (G_LIST_MODEL (document), leaks);
if (include_threads)
flags |= SYSPROF_CALLGRAPH_FLAGS_INCLUDE_THREADS;
flags |= SYSPROF_CALLGRAPH_FLAGS_CATEGORIZE_FRAMES;
sysprof_document_callgraph_async (document,
flags,
records,
sizeof (Augment),
augment_cb, NULL, NULL,
NULL,
callgraph_cb,
main_loop);
g_main_loop_run (main_loop);
return 0;
}