WIP: create-diff-object: keep ubsan section

If CONIFIG_UBSAN is enabled, ubsan section (.data..Lubsan_{data,type})
can be created. Keep them unconditionally.

NOTE: This patch needs to be verified.

Signed-off-by: Misono Tomohiro <[email protected]>

Author: t-msn

kpatch-build/create-diff-object.c

@@ -1656,6 +1656,7 @@ static void kpatch_replace_sections_syms(struct kpatch_elf *kelf)
 			    !strcmp(rela->sym->name, ".fixup") ||
 			    !strcmp(rela->sym->name, ".altinstr_replacement") ||
 			    !strcmp(rela->sym->name, ".altinstr_aux") ||
+			    !strncmp(rela->sym->name, ".data..Lubsan", 13) ||
 			    !strcmp(rela->sym->name, ".text..refcount"))
 				continue;
 
@@ -1819,7 +1820,8 @@ static void kpatch_verify_patchability(struct kpatch_elf *kelf)
 		    (!strncmp(sec->name, ".data", 5) ||
 		     !strncmp(sec->name, ".bss", 4)) &&
 		     !is_data_once_section(sec->name) &&
-		     !is_data_unlikely_section(sec->name)) {
+		     !is_data_unlikely_section(sec->name) &&
+		     strncmp(sec->name, ".data..Lubsan", 13)) {
 			log_normal("data section %s selected for inclusion\n",
 				   sec->name);
 			errs++;
@@ -1915,6 +1917,7 @@ static void kpatch_include_standard_elements(struct kpatch_elf *kelf)
 		    !strcmp(sec->name, ".symtab") ||
 		    !strcmp(sec->name, ".toc") ||
 		    !strcmp(sec->name, ".rodata") ||
+		    !strncmp(sec->name, ".data..Lubsan", 13) ||
 		    is_string_literal_section(sec)) {
 			kpatch_include_section(sec);
 		}