From: Alan Modra <amodra@gmail.com>
Date: Mon, 20 Sep 2021 02:45:20 +0000 (+0930)
Subject: Fix allocate_filenum last dir/file checks
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d467335403fda3c4774e27d9725b3528e1799398;p=binutils-gdb.git

Fix allocate_filenum last dir/file checks

	* dwarf2dbg.c (allocate_filenum) Correct use of last_used_dir_len.
---

diff --git a/gas/dwarf2dbg.c b/gas/dwarf2dbg.c
index e2abe19c88a..c6e439aa862 100644
--- a/gas/dwarf2dbg.c
+++ b/gas/dwarf2dbg.c
@@ -730,9 +730,9 @@ allocate_filenum (const char * pathname)
 	}
       else
 	{
-	  if (filename_ncmp (pathname, dirname, last_used_dir_len) == 0
-	      && IS_DIR_SEPARATOR (pathname [last_used_dir_len])
-	      && filename_cmp (pathname + last_used_dir_len + 1,
+	  if (filename_ncmp (pathname, dirname, last_used_dir_len - 1) == 0
+	      && IS_DIR_SEPARATOR (pathname [last_used_dir_len - 1])
+	      && filename_cmp (pathname + last_used_dir_len,
 			       files[last_used].filename) == 0)
 	    return last_used;
 	}