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/* System-specific settings for dynamic linker code. IA-64 version.
Copyright (C) 2003-2019 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
<http://www.gnu.org/licenses/>. */
#ifndef _LINUX_IA64_DL_SYSDEP_H
#define _LINUX_IA64_DL_SYSDEP_H 1
#include_next <dl-sysdep.h>
/* Traditionally system calls have been made using break 0x100000. A
second method was introduced which, if possible, will use the EPC
instruction. To signal the presence and where to find the code the
kernel passes an AT_SYSINFO_EHDR pointer in the auxiliary vector to
the application. */
#define NEED_DL_SYSINFO 1
#define USE_DL_SYSINFO 1
#ifndef __ASSEMBLER__
/* Don't declare this as a function---we want it's entry-point, not
it's function descriptor... */
extern int _dl_sysinfo_break attribute_hidden;
# define DL_SYSINFO_DEFAULT ((uintptr_t) &_dl_sysinfo_break)
# define DL_SYSINFO_IMPLEMENTATION \
asm (".text\n\t" \
".hidden _dl_sysinfo_break\n\t" \
".proc _dl_sysinfo_break\n\t" \
"_dl_sysinfo_break:\n\t" \
".prologue\n\t" \
".altrp b6\n\t" \
".body\n\t" \
"break 0x100000;\n\t" \
"br.ret.sptk.many b6;\n\t" \
".endp _dl_sysinfo_break\n\t" \
".previous");
#endif
/* _dl_argv cannot be attribute_relro, because _dl_start_user
might write into it after _dl_start returns. */
#define DL_ARGV_NOT_RELRO 1
#endif /* dl-sysdep.h */
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