glibc/sysdeps/unix/sysv/linux/riscv/sysdep.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

52 lines
1.5 KiB
ArmAsm

/* syscall error handlers
Copyright (C) 2011-2022 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/>. */
#include <sysdep.h>
#if IS_IN (libc)
# define errno __libc_errno
#endif
ENTRY (__syscall_error)
mv t0, ra
/* Fall through to __syscall_set_errno. */
END (__syscall_error)
/* Non-standard calling convention: argument in a0, return address in t0,
and clobber only t1. */
ENTRY (__syscall_set_errno)
/* We got here because a0 < 0, but only codes in the range [-4095, -1]
represent errors. Otherwise, just return the result normally. */
li t1, -4096
bleu a0, t1, 1f
neg a0, a0
#if RTLD_PRIVATE_ERRNO
sw a0, rtld_errno, t1
#elif defined(__PIC__)
la.tls.ie t1, errno
add t1, t1, tp
sw a0, 0(t1)
#else
lui t1, %tprel_hi(errno)
add t1, t1, tp, %tprel_add(errno)
sw a0, %tprel_lo(errno)(t1)
#endif
li a0, -1
1: jr t0
END (__syscall_set_errno)