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-rw-r--r--src/glibext/Makefile.am1
-rw-r--r--src/glibext/objhole.h71
2 files changed, 72 insertions, 0 deletions
diff --git a/src/glibext/Makefile.am b/src/glibext/Makefile.am
index 127f60c..af4f876 100644
--- a/src/glibext/Makefile.am
+++ b/src/glibext/Makefile.am
@@ -25,6 +25,7 @@ libglibext_la_SOURCES = \
linegen-int.h \
linegen.h linegen.c \
linesegment.h linesegment.c \
+ objhole.h \
proto.h \
seq.h seq.c \
signal.h signal.c
diff --git a/src/glibext/objhole.h b/src/glibext/objhole.h
new file mode 100644
index 0000000..184e599
--- /dev/null
+++ b/src/glibext/objhole.h
@@ -0,0 +1,71 @@
+
+/* Chrysalide - Outil d'analyse de fichiers binaires
+ * objhole.h - prototypes pour l'utilisation d'un espace inutilisé dans la structure GObject
+ *
+ * Copyright (C) 2019 Cyrille Bagard
+ *
+ * This file is part of Chrysalide.
+ *
+ * Chrysalide 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.
+ *
+ * Chrysalide 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 Chrysalide. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef _GLIBEXT_OBJHOLE_H
+#define _GLIBEXT_OBJHOLE_H
+
+
+#include <glib-object.h>
+
+
+#include "../common/cpp.h"
+
+
+
+/**
+ * Une structure GObject a la définition suivante :
+ *
+ * struct _GObject
+ * {
+ * GTypeInstance g_type_instance;
+ * volatile guint ref_count;
+ * GData *qdata;
+ * };
+ *
+ * L'espace entre les deux derniers champs est exploité ici.
+ */
+
+
+#define INIT_GOBJECT_EXTRA(obj) \
+ do \
+ { \
+ guint *___space; \
+ ___space = (((guint *)&obj->ref_count) + 1); \
+ BUILD_BUG_ON((___space + 1) == (guint *)&obj->qdata); \
+ *___space = 0; \
+ } \
+ while (0)
+
+
+#define GET_GOBJECT_EXTRA(obj, tp) \
+ ({ \
+ BUILD_BUG_ON(sizeof(tp) > sizeof(guint)); \
+ tp *___result; \
+ ___result = (tp *)(((guint *)&obj->ref_count) + 1); \
+ BUILD_BUG_ON((___result + 1) == (tp *)&obj->qdata); \
+ ___result; \
+ })
+
+
+
+#endif /* _GLIBEXT_OBJHOLE_H */