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[src/netbsd-9]: src/libexec/ld.elf_so/arch/hppa Pull up following revision(s)...
details: https://anonhg.NetBSD.org/src/rev/71482b5095d4
branches: netbsd-9
changeset: 366710:71482b5095d4
user: martin <martin%NetBSD.org@localhost>
date: Fri Jun 10 17:39:10 2022 +0000
description:
Pull up following revision(s) (requested by skrll in ticket #1469):
libexec/ld.elf_so/arch/hppa/hppa_reloc.c: revision 1.49
libexec/ld.elf_so/arch/hppa/rtld_start.S: revision 1.14
Set DP early so that any binary functions that override others get the
right value if they're called before _start. This is true of bash where
it provides its own getenv.
Part of port-hppa/56118: sporadic app crashes in HPPA -current
diffstat:
libexec/ld.elf_so/arch/hppa/hppa_reloc.c | 15 +++++++++++++--
libexec/ld.elf_so/arch/hppa/rtld_start.S | 8 +++++++-
2 files changed, 20 insertions(+), 3 deletions(-)
diffs (62 lines):
diff -r ff666cedd4f4 -r 71482b5095d4 libexec/ld.elf_so/arch/hppa/hppa_reloc.c
--- a/libexec/ld.elf_so/arch/hppa/hppa_reloc.c Fri Jun 10 17:34:22 2022 +0000
+++ b/libexec/ld.elf_so/arch/hppa/hppa_reloc.c Fri Jun 10 17:39:10 2022 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: hppa_reloc.c,v 1.45 2017/08/10 19:03:26 joerg Exp $ */
+/* $NetBSD: hppa_reloc.c,v 1.45.6.1 2022/06/10 17:39:10 martin Exp $ */
/*-
* Copyright (c) 2002, 2004 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
#include <sys/cdefs.h>
#ifndef lint
-__RCSID("$NetBSD: hppa_reloc.c,v 1.45 2017/08/10 19:03:26 joerg Exp $");
+__RCSID("$NetBSD: hppa_reloc.c,v 1.45.6.1 2022/06/10 17:39:10 martin Exp $");
#endif /* not lint */
#include <stdlib.h>
@@ -52,6 +52,7 @@
caddr_t _rtld_bind(const Obj_Entry *, const Elf_Addr);
void _rtld_bind_start(void);
void __rtld_setup_hppa_pltgot(const Obj_Entry *, Elf_Addr *);
+void _rtld_set_dp(Elf_Addr *);
/*
* It is possible for the compiler to emit relocations for unaligned data.
@@ -417,6 +418,16 @@
const Obj_Entry *defobj = NULL;
unsigned long last_symnum = ULONG_MAX;
+ /*
+ * This will be done by the crt0 code, but make sure it's set
+ * early so that symbols overridden by the non-pic binary
+ * get the right DP value.
+ */
+ if (obj->mainprog) {
+ hdbg(("setting DP to %p", obj->pltgot));
+ _rtld_set_dp(obj->pltgot);
+ }
+
for (rela = obj->rela; rela < obj->relalim; rela++) {
Elf_Addr *where;
Elf_Addr tmp;
diff -r ff666cedd4f4 -r 71482b5095d4 libexec/ld.elf_so/arch/hppa/rtld_start.S
--- a/libexec/ld.elf_so/arch/hppa/rtld_start.S Fri Jun 10 17:34:22 2022 +0000
+++ b/libexec/ld.elf_so/arch/hppa/rtld_start.S Fri Jun 10 17:39:10 2022 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: rtld_start.S,v 1.12 2012/01/06 10:38:57 skrll Exp $ */
+/* $NetBSD: rtld_start.S,v 1.12.42.1 2022/06/10 17:39:10 martin Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@@ -231,3 +231,9 @@
bv %r0(%r21)
nop
EXIT(_rtld_bind_start)
+
+
+LEAF_ENTRY_NOPROFILE(_rtld_set_dp)
+ bv %r0(%rp)
+ copy %arg0, %dp
+EXIT(_rtld_set_dp)
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