popfq
jmp .Lsysenter_flags_fixed
SYM_INNER_LABEL(__end_entry_SYSENTER_compat, SYM_L_GLOBAL)
- ANNOTATE_NOENDBR // is_sysenter_singlestep
SYM_CODE_END(entry_SYSENTER_compat)
/*
list_del_init(&insn->call_node);
}
+static bool noendbr_range(struct objtool_file *file, struct instruction *insn)
+{
+ struct symbol *sym = find_symbol_containing(insn->sec, insn->offset-1);
+ struct instruction *first;
+
+ if (!sym)
+ return false;
+
+ first = find_insn(file, sym->sec, sym->offset);
+ if (!first)
+ return false;
+
+ if (first->type != INSN_ENDBR && !first->noendbr)
+ return false;
+
+ return insn->offset == sym->offset + sym->len;
+}
+
static int validate_ibt_insn(struct objtool_file *file, struct instruction *insn)
{
struct instruction *dest;
continue;
}
+ /*
+ * Accept anything ANNOTATE_NOENDBR.
+ */
if (dest->noendbr)
continue;
+ /*
+ * Accept if this is the instruction after a symbol
+ * that is (no)endbr -- typical code-range usage.
+ */
+ if (noendbr_range(file, dest))
+ continue;
+
WARN_FUNC("relocation to !ENDBR: %s",
insn->sec, insn->offset,
offstr(dest->sec, dest->offset));