newlib/libgloss/sparc_leon/asm-leon/asmmacro.h

55 lines
1.9 KiB
C

/*
* Copyright (c) 2011 Aeroflex Gaisler
*
* BSD license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef _INCLUDE_LEON_ASMMACRO_h
#define _INCLUDE_LEON_ASMMACRO_h
#include <asm-leon/leonstack.h>
/* All trap entry points _must_ begin with this macro or else you
* lose. It makes sure the kernel has a proper window so that
* c-code can be called.
*/
#define SAVE_ALL_HEAD \
sethi %hi(leonbare_trapsetup), %l4; \
jmpl %l4 + %lo(leonbare_trapsetup), %l6;
#define SAVE_ALL \
SAVE_ALL_HEAD \
nop;
#define SAVE_ALL_FAST(l) \
set l-8, %l6; \
sethi %hi(leonbare_trapsetup_fast), %l4; \
jmpl %l4 + %lo(leonbare_trapsetup_fast), %g0; \
nop;
/* All traps low-level code here must end with this macro. */
#define RESTORE_ALL b leonbare_trapreturn; clr %l6;
#define RESTORE_ALL_FAST b leonbare_trapreturn_fast; clr %l6;
#define WRITE_PAUSE nop; nop; nop;
#endif /* !_INCLUDE_LEON_STACK_h */