[660db8c8] | 1 | /* |
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[04698eb] | 2 | * Copyright (c) 2018 embedded brains GmbH |
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[660db8c8] | 3 | * |
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| 4 | * Copyright (c) 2015 University of York. |
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| 5 | * Hesham Almatary <hesham@alumni.york.ac.uk> |
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| 6 | * |
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| 7 | * COPYRIGHT (c) 1989-2006. |
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| 8 | * On-Line Applications Research Corporation (OAR). |
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| 9 | * |
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| 10 | * Redistribution and use in source and binary forms, with or without |
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| 11 | * modification, are permitted provided that the following conditions |
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| 12 | * are met: |
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| 13 | * 1. Redistributions of source code must retain the above copyright |
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| 14 | * notice, this list of conditions and the following disclaimer. |
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 16 | * notice, this list of conditions and the following disclaimer in the |
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| 17 | * documentation and/or other materials provided with the distribution. |
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| 18 | * |
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| 19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 29 | * SUCH DAMAGE. |
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| 30 | */ |
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| 31 | |
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| 32 | #ifdef HAVE_CONFIG_H |
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| 33 | #include "config.h" |
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| 34 | #endif |
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| 35 | |
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| 36 | #include <rtems/score/cpu.h> |
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[04698eb] | 37 | #include <rtems/score/address.h> |
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[660db8c8] | 38 | |
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| 39 | void _CPU_Context_Initialize( |
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| 40 | Context_Control *context, |
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[a8188730] | 41 | void *stack_area_begin, |
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| 42 | size_t stack_area_size, |
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| 43 | uint32_t new_level, |
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| 44 | void ( *entry_point )( void ), |
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| 45 | bool is_fp, |
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| 46 | void *tls_area |
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[660db8c8] | 47 | ) |
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| 48 | { |
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[04698eb] | 49 | void *stack; |
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[660db8c8] | 50 | |
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[04698eb] | 51 | stack = _Addresses_Add_offset( stack_area_begin, stack_area_size ); |
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| 52 | stack = _Addresses_Align_down( stack, CPU_STACK_ALIGNMENT ); |
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[660db8c8] | 53 | |
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[e43994d] | 54 | context->ra = (uintptr_t) entry_point; |
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| 55 | context->sp = (uintptr_t) stack; |
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[a49a3c8e] | 56 | context->isr_dispatch_disable = 0; |
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[660db8c8] | 57 | } |
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