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Diffstat (limited to '')
-rw-r--r-- | arch/hexagon/kernel/trampoline.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/hexagon/kernel/trampoline.S b/arch/hexagon/kernel/trampoline.S new file mode 100644 index 000000000..18110a905 --- /dev/null +++ b/arch/hexagon/kernel/trampoline.S @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + */ + +/* + * Trampoline sequences to be copied onto user stack. + * This consumes a little more space than hand-assembling + * immediate constants for use in C, but is more portable + * to future tweaks to the Hexagon instruction set. + */ + +#include <asm/unistd.h> + +/* Sig trampolines - call sys_sigreturn or sys_rt_sigreturn as appropriate */ + +/* plain sigreturn is gone. */ + + .globl __rt_sigtramp_template +__rt_sigtramp_template: + r6 = #__NR_rt_sigreturn; + trap0(#1); |