Module Name: src
Committed By: maxv
Date: Wed Nov 1 17:00:18 UTC 2017
Modified Files:
src/sys/arch/amd64/stand/prekern: elf.c
Log Message:
Handle absolute symbols. Since my linux_sigcode.S::rev1.4 there are two
Elf_Rela that point to the NULL symbol - which the prekern thought was an
external reference.
In the ELF spec, STN_UNDEF means the value of the symbol is zero.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/amd64/stand/prekern/elf.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/amd64/stand/prekern/elf.c
diff -u src/sys/arch/amd64/stand/prekern/elf.c:1.5 src/sys/arch/amd64/stand/prekern/elf.c:1.6
--- src/sys/arch/amd64/stand/prekern/elf.c:1.5 Sun Oct 29 11:38:43 2017
+++ src/sys/arch/amd64/stand/prekern/elf.c Wed Nov 1 17:00:17 2017
@@ -1,4 +1,4 @@
-/* $NetBSD: elf.c,v 1.5 2017/10/29 11:38:43 maxv Exp $ */
+/* $NetBSD: elf.c,v 1.6 2017/11/01 17:00:17 maxv Exp $ */
/*
* Copyright (c) 2017 The NetBSD Foundation, Inc. All rights reserved.
@@ -147,6 +147,10 @@ elf_sym_lookup(size_t symidx)
char *buf, *secname;
Elf_Shdr *sec;
+ if (symidx == STN_UNDEF) {
+ return 0;
+ }
+
if (symidx >= eif.symcnt) {
fatal("elf_sym_lookup: symbol beyond table");
}
