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gcc-plugins: Use dynamic initializers

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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>
This commit is contained in:
Kees Cook 2018-02-05 17:27:46 -08:00
parent 80d1724316
commit b86729109c
3 changed files with 38 additions and 83 deletions
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85
scripts/gcc-plugins/randomize_layout_plugin.c
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@ -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 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,
#if BUILDING_GCC_VERSION >= 4007
.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,
#if BUILDING_GCC_VERSION >= 4007
.affects_type_identity = false
#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
};
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 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
randomize_layout_attr.affects_type_identity = true;
#endif
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
no_randomize_layout_attr.affects_type_identity = true;
#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;
register_attribute(&randomize_layout_attr);
register_attribute(&no_randomize_layout_attr);
register_attribute(&randomize_considered_attr);