glibc/sysdeps/unix/sysv/linux/ia64/__start_context.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

51 lines
1.5 KiB
ArmAsm

/* Copyright (C) 2001-2022 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>
#include <features.h>
/* When a context set up by __makecontext() is activated, control
transfers to __start_context. When we get here:
b1 = entry point of function to call
in0 = address of UCP to resume after function returns
in1 = global pointer for __start_context
out0 .. outN = arguments for function */
ENTRY(__start_context)
.prologue
alloc r2 = ar.pfs, 2, 0, 8, 0
.save rp, r4 // terminate call chain with a NULL rp
mov r4 = r0
;;
.body
br.call.sptk rp = b1
1:
mov gp = in1 // restore gp
cmp.ne p6,p0 = in0, r0 // uc_link != 0 ?
;;
(p6) mov out0 = in0
(p6) br.call.sptk rp = __setcontext
.Lexit:
mov out0 = 0
br.call.sptk rp = HIDDEN_JUMPTARGET(exit)
1: br.cond.sptk .Lexit
END(__start_context)