diff options
Diffstat (limited to 'libgloss/sparc_leon/asm-leon/asmmacro.h')
-rw-r--r-- | libgloss/sparc_leon/asm-leon/asmmacro.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/libgloss/sparc_leon/asm-leon/asmmacro.h b/libgloss/sparc_leon/asm-leon/asmmacro.h new file mode 100644 index 000000000..c210d0e92 --- /dev/null +++ b/libgloss/sparc_leon/asm-leon/asmmacro.h @@ -0,0 +1,54 @@ +/* + * 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 */ |