From 392e8802486cb573b916e746010e141a75f507e6 Mon Sep 17 00:00:00 2001 From: Kevin Date: Sat, 15 Nov 2014 09:58:27 +0800 Subject: init android origin source code --- ANDROID_3.4.5/arch/xtensa/include/asm/switch_to.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 ANDROID_3.4.5/arch/xtensa/include/asm/switch_to.h (limited to 'ANDROID_3.4.5/arch/xtensa/include/asm/switch_to.h') diff --git a/ANDROID_3.4.5/arch/xtensa/include/asm/switch_to.h b/ANDROID_3.4.5/arch/xtensa/include/asm/switch_to.h new file mode 100644 index 00000000..6b73bf0e --- /dev/null +++ b/ANDROID_3.4.5/arch/xtensa/include/asm/switch_to.h @@ -0,0 +1,22 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2001 - 2005 Tensilica Inc. + */ + +#ifndef _XTENSA_SWITCH_TO_H +#define _XTENSA_SWITCH_TO_H + +/* * switch_to(n) should switch tasks to task nr n, first + * checking that n isn't the current task, in which case it does nothing. + */ +extern void *_switch_to(void *last, void *next); + +#define switch_to(prev,next,last) \ +do { \ + (last) = _switch_to(prev, next); \ +} while(0) + +#endif /* _XTENSA_SWITCH_TO_H */ -- cgit