create-diff-object: Add is_special_section() helper function

This function determines, based on the given section name, if the
sections belongs to the special sections category.

Add more special sections to special_sections[] along with a new
undefined_group_size() helper function returning 0 (undefined).
New special sections are: .altinstr_replacement.

Signed-off-by: Pawel Wieczorkiewicz <wipawel@amazon.de>
Reviewed-by: Andra-Irina Paraschiv <andraprs@amazon.com>
Reviewed-by: Bjoern Doebel <doebel@amazon.de>
Reviewed-by: Norbert Manthey <nmanthey@amazon.de>

diff --git a/create-diff-object.c b/create-diff-object.c
index 4699ba026a0dad81d4badd89243a0408c7e2a3ec..0df3fead3bcdf54c956662dca318c9ca6937c733 100644 (file)
--- a/create-diff-object.c
+++ b/create-diff-object.c
@@ -1045,6 +1045,18 @@ static struct special_section special_sections[] = {
        {},
 };
 
+static int is_special_section(const struct section *sec)
+{
+       struct special_section *special;
+
+       for (special = special_sections; special->name; special++) {
+               if (!strcmp(sec->name, special->name))
+                       return true;
+       }
+
+       return false;
+}
+
 static int should_keep_rela_group(struct section *sec, int start, int size)
 {
        struct rela *rela;