[452] | 1 | /* |
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| 2 | * hal_kernel_types.h - Data types shared by kernel & libraries for TSAR-MIPS32. |
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| 3 | * |
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| 4 | * Author Alain Greiner (2016) |
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| 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MKH. |
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| 9 | * |
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| 10 | * ALMOS-MKH is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-MKH; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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| 24 | #ifndef HAL_SHARED_TYPES_H_ |
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| 25 | #define HAL_SHARED_TYPES_H_ |
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| 26 | |
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| 27 | /*******************i*************************************************************** |
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| 28 | * This file defines - for the TSAR_MIPS32 architecture - the <reg_t> type, used |
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| 29 | * by the hal_user_syscall() function, called by several user-level libraries |
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| 30 | * to pass syscall arguments to the kernel, and used by the do_syscall() function, |
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| 31 | * called by the kernel syscall handler, to analyse arguments. |
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| 32 | * It is also used by various kernel functions such as the hal_*_irq() functions |
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| 33 | * to save/restore the SR register value. |
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| 34 | **********************************************************************************/ |
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| 35 | |
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| 36 | #ifndef NULL |
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| 37 | #define NULL (void*)0 |
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| 38 | #endif |
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| 39 | |
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| 40 | typedef unsigned long int reg_t; // core register |
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| 41 | |
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| 42 | #endif /* HAL_TYPES_H_ */ |
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