diff options
Diffstat (limited to 'libgloss/sparc_leon/mmu_asm.S')
| -rw-r--r-- | libgloss/sparc_leon/mmu_asm.S | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/libgloss/sparc_leon/mmu_asm.S b/libgloss/sparc_leon/mmu_asm.S new file mode 100644 index 000000000..5fe6a7616 --- /dev/null +++ b/libgloss/sparc_leon/mmu_asm.S @@ -0,0 +1,45 @@ +/* + * 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. + */ + + +#include <asm-leon/leon.h> +#include <asm-leon/leonstack.h> +#include <asm-leon/asmmacro.h> + + .seg "text" + + ! srmmu trap or data access trap + /* ------- */ + .weak _srmmu_fault_svt + .set _srmmu_fault_svt,__srmmu_fault_svt + .weak _srmmu_fault + .set _srmmu_fault,__srmmu_fault + /* ------- */ + +/* 1 (inst) or 9 (data) in %l6 */ +__srmmu_fault_svt: +__srmmu_fault: + ta 0; nop; nop; nop; + jmp %l1 ! Re-execute save. + rett %l2 |