[binutils-gdb] PR28540, segmentation fault on NULL byte_get

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f2f105f518413ea3e4c212f89585f9a8a5dddcdd

commit f2f105f518413ea3e4c212f89585f9a8a5dddcdd
Author: Alan Modra <amodra@gmail.com>
Date:   Thu Nov 4 14:11:02 2021 +1030

    PR28540, segmentation fault on NULL byte_get
    
            PR 28540
            * objdump.c (dump_bfd): Don't attempt load_separate_debug_files
            when byte_get is NULL.

Diff:
---
 binutils/objdump.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/binutils/objdump.c b/binutils/objdump.c
index 356e3ecd853..1bfb5c71e7a 100644
--- a/binutils/objdump.c
+++ b/binutils/objdump.c
@@ -4862,7 +4862,7 @@ dump_bfd (bfd *abfd, bool is_mainfile)
      
      The test on is_mainfile is there because the chain of separate debug
      info files is a global variable shared by all invocations of dump_bfd.  */
-  if (is_mainfile)
+  if (byte_get != NULL && is_mainfile)
     {
       load_separate_debug_files (abfd, bfd_get_filename (abfd));