glibc/sysdeps/unix/sysv/linux/sparc/sparc64/longjmp.S
Paul Eggert 581c785bf3 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 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

50 lines
1.6 KiB
ArmAsm

/* Copyright (C) 1997-2022 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/>. */
/* longjmp is implemented in terms of the setcontext trap on Linux/Sparc64. */
#include <sysdep.h>
/* Offsets into the jmp_buf structure. */
#define O_mask_was_saved 512
#define O_gregs 32
#define O_g1 (O_gregs + 4*8)
/* void longjmp (sigjmp_buf env, int val) */
ENTRY(__libc_siglongjmp)
/* Modify the context with the value we want to return. */
movre %o1, 1, %o1
stx %o1, [%o0 + O_g1]
/* Let setcontext know if we want to modify the current sigmask. */
ld [%o0 + O_mask_was_saved], %o1
/* And bamf back to where we belong! */
ta 0x6f
END(__libc_siglongjmp)
strong_alias(__libc_siglongjmp, __longjmp)
strong_alias(__libc_siglongjmp, __libc_longjmp)
weak_alias (__libc_siglongjmp, longjmp)
weak_alias (__libc_siglongjmp, _longjmp)
weak_alias (__libc_siglongjmp, siglongjmp)