[src/trunk]: src/sys/kern Enhance verbosity of debug message for ELF magic mi...

[kamil <kamil%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/2aac1cd536a3
branches:  trunk
changeset: 353134:2aac1cd536a3
user:      kamil <kamil%NetBSD.org@localhost>
date:      Fri Apr 21 13:17:42 2017 +0000

description:
Enhance verbosity of debug message for ELF magic mismatch

Print e_ident[EI_MAG3] (it was missed)
Print e_ident[EI_CLASS] as it is used do determine correct ELF magic.

No functional change for non-debug (without option DEBUG_ELF) build.

diffstat:

 sys/kern/exec_elf.c |  10 ++++++----
 1 files changed, 6 insertions(+), 4 deletions(-)

diffs (31 lines):

diff -r 1b74379e5706 -r 2aac1cd536a3 sys/kern/exec_elf.c
--- a/sys/kern/exec_elf.c       Fri Apr 21 12:43:22 2017 +0000
+++ b/sys/kern/exec_elf.c       Fri Apr 21 13:17:42 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: exec_elf.c,v 1.89 2017/02/18 01:29:09 chs Exp $        */
+/*     $NetBSD: exec_elf.c,v 1.90 2017/04/21 13:17:42 kamil Exp $      */
 
 /*-
  * Copyright (c) 1994, 2000, 2005, 2015 The NetBSD Foundation, Inc.
@@ -57,7 +57,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: exec_elf.c,v 1.89 2017/02/18 01:29:09 chs Exp $");
+__KERNEL_RCSID(1, "$NetBSD: exec_elf.c,v 1.90 2017/04/21 13:17:42 kamil Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_pax.h"
@@ -271,8 +271,10 @@
 
        if (memcmp(eh->e_ident, ELFMAG, SELFMAG) != 0 ||
            eh->e_ident[EI_CLASS] != ELFCLASS) {
-               DPRINTF("bad magic %#x%x%x", eh->e_ident[0], eh->e_ident[1],
-                   eh->e_ident[2]);
+               DPRINTF("bad magic e_ident[EI_MAG0,EI_MAG3] %#x%x%x%x, "
+                   "e_ident[EI_CLASS] %#x", eh->e_ident[EI_MAG0],
+                   eh->e_ident[EI_MAG1], eh->e_ident[EI_MAG2],
+                   eh->e_ident[EI_MAG3], eh->e_ident[EI_CLASS]);
                return ENOEXEC;
        }