Prevent seg-fault in gas reading a binary input file.

	PR 19630
	* read.c (read_a_source_file): Check for assemble_one returning
	with input_line_pointer set to NULL.

diff --git a/gas/ChangeLog b/gas/ChangeLog
index b1637a3..d97a4b7 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,9 @@
+2016-02-19  Nick Clifton  <nickc@redhat.com>
+
+       PR 19630
+       * read.c (read_a_source_file): Check for assemble_one returning
+       with input_line_pointer set to NULL.
+
 016-02-19  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>
 
        * listing.c (rebuffer_line): Change return type to void.

diff --git a/gas/read.c b/gas/read.c
index 22da1df..5e0e3c8 100644 (file)
--- a/gas/read.c
+++ b/gas/read.c
@@ -1176,6 +1176,11 @@ read_a_source_file (char *name)
 
                      assemble_one (s); /* Assemble 1 instruction.  */
 
+                     /* PR 19630: The backend may have set ilp to NULL
+                        if it encountered a catastrophic failure.  */
+                     if (input_line_pointer == NULL)
+                       as_fatal (_("unable to continue with assembly."));
+ 
                      *input_line_pointer++ = nul_char;
 
                      /* We resume loop AFTER the end-of-line from