From 554066b83b1a0d14e6e7a24a45ef3f65342aae76 Mon Sep 17 00:00:00 2001 From: Marcus Shawcroft Date: Fri, 9 Nov 2012 17:53:51 +0000 Subject: AArch64 Port --- .../unix/sysv/linux/aarch64/nptl/pt-vfork.S | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 ports/sysdeps/unix/sysv/linux/aarch64/nptl/pt-vfork.S (limited to 'ports/sysdeps/unix/sysv/linux/aarch64/nptl/pt-vfork.S') diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/nptl/pt-vfork.S b/ports/sysdeps/unix/sysv/linux/aarch64/nptl/pt-vfork.S new file mode 100644 index 0000000000..6096822cfc --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/aarch64/nptl/pt-vfork.S @@ -0,0 +1,35 @@ +/* Copyright (C) 2009-2012 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 + . */ + +#include + +/* Save the PID value. */ +#define SAVE_PID \ + mrs x2, tpidr_el0; \ + sub x2, x2, #PTHREAD_SIZEOF; \ + ldr w3, [x2, #PTHREAD_PID_OFFSET]; \ + neg w0, w3; \ + str w0, [x2, #PTHREAD_PID_OFFSET] + +/* Restore the old PID value in the parent. */ +#define RESTORE_PID \ + cbz x0, 1f; \ + str w3, [x2, #PTHREAD_PID_OFFSET]; \ +1: + +#include "../vfork.S" -- cgit 1.4.1