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/* Helpers for On-demand PLT fixup for shared objects. x86_64 version.
Copyright (C) 2020 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
/* The ABI calls for the PLT stubs to pass the index of the relocation
and not its offset. In _dl_profile_fixup and _dl_call_pltexit we
also use the index. Therefore it is wasteful to compute the offset
in the trampoline just to reverse the operation immediately
afterwards. */
static inline uintptr_t
reloc_offset (uintptr_t plt0, uintptr_t pltn)
{
return pltn * sizeof (ElfW(Rela));
}
static inline uintptr_t
reloc_index (uintptr_t plt0, uintptr_t pltn, size_t size)
{
return pltn;
}
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