| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2012 Travis Geiselbrecht |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining |
| 5 | * a copy of this software and associated documentation files |
| 6 | * (the "Software"), to deal in the Software without restriction, |
| 7 | * including without limitation the rights to use, copy, modify, merge, |
| 8 | * publish, distribute, sublicense, and/or sell copies of the Software, |
| 9 | * and to permit persons to whom the Software is furnished to do so, |
| 10 | * subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be |
| 13 | * included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 | * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 20 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 21 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 22 | */ |
| 23 | #include <compiler.h> |
| 24 | #include <stdint.h> |
| 25 | |
| 26 | /* |
| 27 | * Make a nice 8 byte aligned stack to run on before the threading system is up. |
| 28 | * Put it in the .bss.prebss.* section to make sure it doesn't get wiped |
| 29 | * when bss is cleared a little ways into boot. |
| 30 | */ |
| 31 | static uint8_t initial_stack[1024] __SECTION(".bss.prebss.initial_stack") __ALIGNED(8); |
| 32 | |
| 33 | extern void _start(void); |
| 34 | extern void _nmi(void); |
| 35 | extern void _hardfault(void); |
| 36 | extern void _memmanage(void); |
| 37 | extern void _busfault(void); |
| 38 | extern void _usagefault(void); |
| 39 | extern void _svc(void); |
| 40 | extern void _debugmonitor(void); |
| 41 | extern void _pendsv(void); |
| 42 | extern void _systick(void); |
| 43 | |
| 44 | #if defined(WITH_DEBUGGER_INFO) |
| 45 | extern struct __debugger_info__ _debugger_info; |
| 46 | #endif |
| 47 | |
| 48 | const void * const __SECTION(".text.boot.vectab1") vectab[] = { |
| 49 | /* arm exceptions */ |
| 50 | initial_stack + sizeof(initial_stack), |
| 51 | _start, |
| 52 | _nmi, // nmi |
| 53 | _hardfault, // hard fault |
| 54 | _memmanage, // mem manage |
| 55 | _busfault, // bus fault |
| 56 | _usagefault, // usage fault |
| 57 | 0, // reserved |
| 58 | #if defined(WITH_DEBUGGER_INFO) |
| 59 | (void*) 0x52474244, |
| 60 | &_debugger_info, |
| 61 | #else |
| 62 | 0, // reserved |
| 63 | 0, // reserved |
| 64 | #endif |
| 65 | 0, // reserved |
| 66 | _svc, // svcall |
| 67 | _debugmonitor, // debug monitor |
| 68 | 0, // reserved |
| 69 | _pendsv, // pendsv |
| 70 | _systick, // systick |
| 71 | }; |
| 72 | |
| 73 | |
| 74 | |