glibc/sysdeps/arc/dl-runtime.h
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

43 lines
1.5 KiB
C

/* Helpers for On-demand PLT fixup for shared objects. ARC version.
Copyright (C) 2020-2021 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/>. */
/* PLT jump into resolver passes PC of PLTn, while _dl_fixup expects the
address of corresponding .rela.plt entry.
- @plt0: runtime pc of first plt entry (DT_PLTGOT)
- @pltn: runtime pc of plt entry being resolved
- @size: size of .plt.rela entry (unused). */
static inline uintptr_t
reloc_index (uintptr_t plt0, uintptr_t pltn, size_t size)
{
unsigned long int idx = pltn - plt0;
/* PLT trampoline is 16 bytes. */
idx /= 16;
/* Exclude PLT0 and PLT1. */
return idx - 2;
}
static inline uintptr_t
reloc_offset (uintptr_t plt0, uintptr_t pltn)
{
size_t sz = sizeof (ElfW(Rela));
return reloc_index (plt0, pltn, sz) * sz;
}