gcc-plugins: Use dynamic initializers

GCC 8 changed the order of some fields and is very picky about ordering
in static initializers, so instead just move to dynamic initializers,
and drop the redundant already-zero field assignments.

Suggested-by: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Signed-off-by: Kees Cook <keescook@chromium.org>

diff --git a/scripts/gcc-plugins/latent_entropy_plugin.c b/scripts/gcc-plugins/latent_entropy_plugin.c
index 6526496..cbe1d6c 100644 (file)
--- a/scripts/gcc-plugins/latent_entropy_plugin.c
+++ b/scripts/gcc-plugins/latent_entropy_plugin.c
@@ -255,21 +255,14 @@ static tree handle_latent_entropy_attribute(tree *node, tree name,
        return NULL_TREE;
 }
 
-static struct attribute_spec latent_entropy_attr = {
-       .name                           = "latent_entropy",
-       .min_length                     = 0,
-       .max_length                     = 0,
-       .decl_required                  = true,
-       .type_required                  = false,
-       .function_type_required         = false,
-       .handler                        = handle_latent_entropy_attribute,
-#if BUILDING_GCC_VERSION >= 4007
-       .affects_type_identity          = false
-#endif
-};
+static struct attribute_spec latent_entropy_attr = { };
 
 static void register_attributes(void *event_data __unused, void *data __unused)
 {
+       latent_entropy_attr.name                = "latent_entropy";
+       latent_entropy_attr.decl_required       = true;
+       latent_entropy_attr.handler             = handle_latent_entropy_attribute;
+
        register_attribute(&latent_entropy_attr);
 }
 

diff --git a/scripts/gcc-plugins/randomize_layout_plugin.c b/scripts/gcc-plugins/randomize_layout_plugin.c
index 0073af3..c4a345c 100644 (file)
--- a/scripts/gcc-plugins/randomize_layout_plugin.c
+++ b/scripts/gcc-plugins/randomize_layout_plugin.c
@@ -580,68 +580,35 @@ static void finish_type(void *event_data, void *data)
        return;
 }
 
-static struct attribute_spec randomize_layout_attr = {
-       .name           = "randomize_layout",
-       // related to args
-       .min_length     = 0,
-       .max_length     = 0,
-       .decl_required  = false,
-       // need type declaration
-       .type_required  = true,
-       .function_type_required = false,
-       .handler                = handle_randomize_layout_attr,
-#if BUILDING_GCC_VERSION >= 4007
-       .affects_type_identity  = true
-#endif
-};
+static struct attribute_spec randomize_layout_attr = { };
+static struct attribute_spec no_randomize_layout_attr = { };
+static struct attribute_spec randomize_considered_attr = { };
+static struct attribute_spec randomize_performed_attr = { };
 
-static struct attribute_spec no_randomize_layout_attr = {
-       .name           = "no_randomize_layout",
-       // related to args
-       .min_length     = 0,
-       .max_length     = 0,
-       .decl_required  = false,
-       // need type declaration
-       .type_required  = true,
-       .function_type_required = false,
-       .handler                = handle_randomize_layout_attr,
+static void register_attributes(void *event_data, void *data)
+{
+       randomize_layout_attr.name              = "randomize_layout";
+       randomize_layout_attr.type_required     = true;
+       randomize_layout_attr.handler           = handle_randomize_layout_attr;
 #if BUILDING_GCC_VERSION >= 4007
-       .affects_type_identity  = true
+       randomize_layout_attr.affects_type_identity = true;
 #endif
-};
 
-static struct attribute_spec randomize_considered_attr = {
-       .name           = "randomize_considered",
-       // related to args
-       .min_length     = 0,
-       .max_length     = 0,
-       .decl_required  = false,
-       // need type declaration
-       .type_required  = true,
-       .function_type_required = false,
-       .handler                = handle_randomize_considered_attr,
+       no_randomize_layout_attr.name           = "no_randomize_layout";
+       no_randomize_layout_attr.type_required  = true;
+       no_randomize_layout_attr.handler        = handle_randomize_layout_attr;
 #if BUILDING_GCC_VERSION >= 4007
-       .affects_type_identity  = false
+       no_randomize_layout_attr.affects_type_identity = true;
 #endif
-};
 
-static struct attribute_spec randomize_performed_attr = {
-       .name           = "randomize_performed",
-       // related to args
-       .min_length     = 0,
-       .max_length     = 0,
-       .decl_required  = false,
-       // need type declaration
-       .type_required  = true,
-       .function_type_required = false,
-       .handler                = handle_randomize_performed_attr,
-#if BUILDING_GCC_VERSION >= 4007
-       .affects_type_identity  = false
-#endif
-};
+       randomize_considered_attr.name          = "randomize_considered";
+       randomize_considered_attr.type_required = true;
+       randomize_considered_attr.handler       = handle_randomize_considered_attr;
+
+       randomize_performed_attr.name           = "randomize_performed";
+       randomize_performed_attr.type_required  = true;
+       randomize_performed_attr.handler        = handle_randomize_performed_attr;
 
-static void register_attributes(void *event_data, void *data)
-{
        register_attribute(&randomize_layout_attr);
        register_attribute(&no_randomize_layout_attr);
        register_attribute(&randomize_considered_attr);

diff --git a/scripts/gcc-plugins/structleak_plugin.c b/scripts/gcc-plugins/structleak_plugin.c
index 3f8dd48..10292f7 100644 (file)
--- a/scripts/gcc-plugins/structleak_plugin.c
+++ b/scripts/gcc-plugins/structleak_plugin.c
@@ -57,21 +57,16 @@ static tree handle_user_attribute(tree *node, tree name, tree args, int flags, b
        return NULL_TREE;
 }
 
-static struct attribute_spec user_attr = {
-       .name                   = "user",
-       .min_length             = 0,
-       .max_length             = 0,
-       .decl_required          = false,
-       .type_required          = false,
-       .function_type_required = false,
-       .handler                = handle_user_attribute,
-#if BUILDING_GCC_VERSION >= 4007
-       .affects_type_identity  = true
-#endif
-};
+static struct attribute_spec user_attr = { };
 
 static void register_attributes(void *event_data, void *data)
 {
+       user_attr.name                  = "user";
+       user_attr.handler               = handle_user_attribute;
+#if BUILDING_GCC_VERSION >= 4007
+       user_attr.affects_type_identity = true;
+#endif
+
        register_attribute(&user_attr);
 }