glibc/sysdeps/aarch64/setjmp.S
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

76 lines
2.0 KiB
ArmAsm

/* Copyright (C) 1997-2021 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/>. */
#include <sysdep.h>
#include <jmpbuf-offsets.h>
#include <stap-probe.h>
/* Keep traditional entry points in with sigsetjmp(). */
ENTRY (setjmp)
mov x1, #1
b 1f
END (setjmp)
ENTRY (_setjmp)
mov x1, #0
b 1f
END (_setjmp)
libc_hidden_def (_setjmp)
ENTRY (__sigsetjmp)
PTR_ARG (0)
1:
stp x19, x20, [x0, #JB_X19<<3]
stp x21, x22, [x0, #JB_X21<<3]
stp x23, x24, [x0, #JB_X23<<3]
stp x25, x26, [x0, #JB_X25<<3]
stp x27, x28, [x0, #JB_X27<<3]
#ifdef PTR_MANGLE
PTR_MANGLE (4, 30, 3, 2)
stp x29, x4, [x0, #JB_X29<<3]
#else
stp x29, x30, [x0, #JB_X29<<3]
#endif
/* setjmp probe takes 3 arguments, address of jump buffer
first argument (8@x0), return value second argument (-4@x1),
and target address (8@x30), respectively. */
LIBC_PROBE (setjmp, 3, 8@x0, -4@x1, 8@x30)
stp d8, d9, [x0, #JB_D8<<3]
stp d10, d11, [x0, #JB_D10<<3]
stp d12, d13, [x0, #JB_D12<<3]
stp d14, d15, [x0, #JB_D14<<3]
#ifdef PTR_MANGLE
mov x4, sp
PTR_MANGLE (5, 4, 3, 2)
str x5, [x0, #JB_SP<<3]
#else
mov x2, sp
str x2, [x0, #JB_SP<<3]
#endif
#if IS_IN (rtld)
/* In ld.so we never save the signal mask */
mov w0, #0
RET
#else
b C_SYMBOL_NAME(__sigjmp_save)
#endif
END (__sigsetjmp)
hidden_def (__sigsetjmp)