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rtld: Remove DL_ARGV_NOT_RELRO and make _dl_skip_args const

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_dl_skip_args is always 0, so the target specific code that modifies
argv after relro protection is applied is no longer used.

After the patch relro protection is applied to _dl_argv consistently
on all targets.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
Szabolcs Nagy
2022-05-03 17:01:44 +01:00
parent ad43cac44a
commit 86147bbeec
12 changed files with 5 additions and 153 deletions
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23
sysdeps/sparc/dl-sysdep.h
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@@ -1,23 +0,0 @@
/* System-specific settings for dynamic linker code. SPARC version.
Copyright (C) 2002-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include_next <dl-sysdep.h>
/* _dl_argv cannot be attribute_relro, because _dl_start_user
might write into it after _dl_start returns. */
#define DL_ARGV_NOT_RELRO 1