From dba942c80dc2cfa5768a856fff98e22a755fdd27 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Tue, 4 Oct 2016 06:51:35 +0200 Subject: add experimental aarch64 support Ported over from GNU C Library and runtime tested in Qemu. --- libc/sysdeps/linux/aarch64/setjmp.S | 59 +++++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 libc/sysdeps/linux/aarch64/setjmp.S (limited to 'libc/sysdeps/linux/aarch64/setjmp.S') diff --git a/libc/sysdeps/linux/aarch64/setjmp.S b/libc/sysdeps/linux/aarch64/setjmp.S new file mode 100644 index 000000000..b3d616222 --- /dev/null +++ b/libc/sysdeps/linux/aarch64/setjmp.S @@ -0,0 +1,59 @@ +/* Copyright (C) 1997-2016 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 +#include + + /* 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) + +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] + + stp x29, x30, [x0, #JB_X29<<3] + + /* 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] + mov x2, sp + str x2, [x0, #JB_SP<<3] + + b C_SYMBOL_NAME(__sigjmp_save) + +END (__sigsetjmp) +hidden_def (__sigsetjmp) -- cgit v1.2.3