From: Jan Hubicka <jh@suse.cz>
Date: Sat, 1 Aug 2020 15:57:08 +0000 (+0200)
Subject: Verify symtab order
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=87c284dd2758fbda1180dd3c35f8189f003b5aad;p=thirdparty%2Fgcc.git

Verify symtab order

	* symtab.c (symtab_node::verify_base): Verify order.
	(symtab_node::verify_symtab_nodes): Verify order.
---

diff --git a/gcc/symtab.c b/gcc/symtab.c
index 0e852d4c24d4..d7dfbb676df2 100644
--- a/gcc/symtab.c
+++ b/gcc/symtab.c
@@ -1085,6 +1085,11 @@ symtab_node::verify_base (void)
       error ("node has unknown type");
       error_found = true;
     }
+  if (order < 0 || order >= symtab->order)
+    {
+      error ("node has invalid order %i", order);
+      error_found = true;
+    }
    
   if (symtab->state != LTO_STREAMING)
     {
@@ -1326,6 +1331,14 @@ symtab_node::verify_symtab_nodes (void)
 {
   symtab_node *node;
   hash_map<tree, symtab_node *> comdat_head_map (251);
+  asm_node *anode;
+
+  for (anode = symtab->first_asm_symbol (); anode; anode = anode->next)
+    if (anode->order < 0 || anode->order >= symtab->order)
+       {
+	  error ("invalid order in asm node %i", anode->order);
+	  internal_error ("symtab_node::verify failed");
+       }
 
   FOR_EACH_SYMBOL (node)
     {