[src/trunk]: src/sys/lib/libsa Section at index 0 is SHN_UNDEF. When searchi...

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

details:   https://anonhg.NetBSD.org/src/rev/445dc50f5d19
branches:  trunk
changeset: 823273:445dc50f5d19
user:      uwe <uwe%NetBSD.org@localhost>
date:      Mon Apr 17 18:06:30 2017 +0000

description:
Section at index 0 is SHN_UNDEF.  When searching for symbol sections
skip it and start with index 1.

diffstat:

 sys/lib/libsa/loadfile_elf32.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r 93c0f56ba938 -r 445dc50f5d19 sys/lib/libsa/loadfile_elf32.c
--- a/sys/lib/libsa/loadfile_elf32.c    Mon Apr 17 17:44:48 2017 +0000
+++ b/sys/lib/libsa/loadfile_elf32.c    Mon Apr 17 18:06:30 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: loadfile_elf32.c,v 1.37 2017/04/17 17:44:48 uwe Exp $ */
+/* $NetBSD: loadfile_elf32.c,v 1.38 2017/04/17 18:06:30 uwe Exp $ */
 
 /*
  * Copyright (c) 1997, 2008 The NetBSD Foundation, Inc.
@@ -432,7 +432,7 @@
                /*
                 * First load the section names section.
                 */
-               if (boot_load_ctf && (elf->e_shstrndx != 0)) {
+               if (boot_load_ctf && (elf->e_shstrndx != SHN_UNDEF)) {
                        Elf_Off shstroff = shp[elf->e_shstrndx].sh_offset;
                        shstrsz = shp[elf->e_shstrndx].sh_size;
                        if (flags & LOAD_SYM) {
@@ -473,7 +473,7 @@
                 * table.
                 */
                first = 1;
-               for (i = 0; i < elf->e_shnum; i++) {
+               for (i = 1; i < elf->e_shnum; i++) {
                        if (i == elf->e_shstrndx) {
                                /* already loaded this section */
                                continue;
@@ -492,7 +492,7 @@
                                shp[i].sh_offset = 0;
                                break;
                        case SHT_STRTAB:
-                               for (j = 0; j < elf->e_shnum; j++)
+                               for (j = 1; j < elf->e_shnum; j++)
                                        if (shp[j].sh_type == SHT_SYMTAB &&
                                            shp[j].sh_link == (unsigned int)i)
                                                goto havesym;