create-diff-object: batch report unsupported sibling calls

Like unsupported jump labels and static call sites, batch report all
unsupported sibling calls so the kpatch developer doesn't need to
iteratively find them all.

Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>

Author: joe-lawrence

kpatch-build/create-diff-object.c

@@ -3860,6 +3860,7 @@ static void kpatch_no_sibling_calls_ppc64le(struct kpatch_elf *kelf)
 	struct symbol *sym;
 	unsigned char *insn;
 	unsigned int offset;
+	int sibling_call_errors = 0;
 
 	if (kelf->arch != PPC64)
 		return;
@@ -3893,10 +3894,15 @@ static void kpatch_no_sibling_calls_ppc64le(struct kpatch_elf *kelf)
 			if (!find_rela_by_offset(sym->sec->rela, offset))
 				continue;
 
-			ERROR("Found an unsupported sibling call at %s()+0x%lx.  Add __attribute__((optimize(\"-fno-optimize-sibling-calls\"))) to %s() definition.",
+			log_normal("Found an unsupported sibling call at %s()+0x%lx.  Add __attribute__((optimize(\"-fno-optimize-sibling-calls\"))) to %s() definition.\n",
 			      sym->name, sym->sym.st_value + offset, sym->name);
+			sibling_call_errors++;
 		}
 	}
+
+	if (sibling_call_errors)
+		ERROR("Found %d unsupported sibling call(s) in the patched code.",
+		      sibling_call_errors);
 }
 
 /* Check which functions have fentry/mcount calls; save this info for later use. */