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diff --git a/lib/chibios-contrib/os/common/startup/RISCV-ECLIC/compilers/GCC/crt1.c b/lib/chibios-contrib/os/common/startup/RISCV-ECLIC/compilers/GCC/crt1.c
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+++ b/lib/chibios-contrib/os/common/startup/RISCV-ECLIC/compilers/GCC/crt1.c
@@ -0,0 +1,212 @@
1/*
2 ChibiOS - Copyright (C) 2020 Patrick Seidel
3 ChibiOS - Copyright (C) 2021 Stefan Kerkmann
4
5 Licensed under the Apache License, Version 2.0 (the "License");
6 you may not use this file except in compliance with the License.
7 You may obtain a copy of the License at
8
9 http://www.apache.org/licenses/LICENSE-2.0
10
11 Unless required by applicable law or agreed to in writing, software
12 distributed under the License is distributed on an "AS IS" BASIS,
13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 See the License for the specific language governing permissions and
15 limitations under the License.
16*/
17
18/**
19 * @file crt1.c
20 * @brief Startup stub functions.
21 *
22 * @addtogroup RISCV_ECLIC_STARTUP
23 * @{
24 */
25
26#include <stdbool.h>
27#include <stdint.h>
28
29/*===========================================================================*/
30/* Module local definitions. */
31/*===========================================================================*/
32
33#if !defined(CRT1_AREAS_NUMBER) || defined(__DOXYGEN__)
34#define CRT1_AREAS_NUMBER 8
35#endif
36
37#if (CRT1_AREAS_NUMBER < 0) || (CRT1_AREAS_NUMBER > 8)
38#error "CRT1_AREAS_NUMBER must be within 0 and 8"
39#endif
40
41/*===========================================================================*/
42/* Module exported variables. */
43/*===========================================================================*/
44
45/*===========================================================================*/
46/* Module local types. */
47/*===========================================================================*/
48
49/**
50 * @brief Type of an area to be initialized.
51 */
52typedef struct {
53 uint32_t *init_text_area;
54 uint32_t *init_area;
55 uint32_t *clear_area;
56 uint32_t *no_init_area;
57} ram_init_area_t;
58
59/*===========================================================================*/
60/* Module local variables. */
61/*===========================================================================*/
62
63#if (CRT1_AREAS_NUMBER > 0) || defined(__DOXYGEN__)
64extern uint32_t __ram0_init_text__, __ram0_init__, __ram0_clear__, __ram0_noinit__;
65#endif
66#if (CRT1_AREAS_NUMBER > 1) || defined(__DOXYGEN__)
67extern uint32_t __ram1_init_text__, __ram1_init__, __ram1_clear__, __ram1_noinit__;
68#endif
69#if (CRT1_AREAS_NUMBER > 2) || defined(__DOXYGEN__)
70extern uint32_t __ram2_init_text__, __ram2_init__, __ram2_clear__, __ram2_noinit__;
71#endif
72#if (CRT1_AREAS_NUMBER > 3) || defined(__DOXYGEN__)
73extern uint32_t __ram3_init_text__, __ram3_init__, __ram3_clear__, __ram3_noinit__;
74#endif
75#if (CRT1_AREAS_NUMBER > 4) || defined(__DOXYGEN__)
76extern uint32_t __ram4_init_text__, __ram4_init__, __ram4_clear__, __ram4_noinit__;
77#endif
78#if (CRT1_AREAS_NUMBER > 5) || defined(__DOXYGEN__)
79extern uint32_t __ram5_init_text__, __ram5_init__, __ram5_clear__, __ram5_noinit__;
80#endif
81#if (CRT1_AREAS_NUMBER > 6) || defined(__DOXYGEN__)
82extern uint32_t __ram6_init_text__, __ram6_init__, __ram6_clear__, __ram6_noinit__;
83#endif
84#if (CRT1_AREAS_NUMBER > 7) || defined(__DOXYGEN__)
85extern uint32_t __ram7_init_text__, __ram7_init__, __ram7_clear__, __ram7_noinit__;
86#endif
87
88/**
89 * @brief Static table of areas to be initialized.
90 */
91#if (CRT1_AREAS_NUMBER > 0) || defined(__DOXYGEN__)
92static const ram_init_area_t ram_areas[CRT1_AREAS_NUMBER] = {
93 {&__ram0_init_text__, &__ram0_init__, &__ram0_clear__, &__ram0_noinit__},
94#if (CRT1_AREAS_NUMBER > 1) || defined(__DOXYGEN__)
95 {&__ram1_init_text__, &__ram1_init__, &__ram1_clear__, &__ram1_noinit__},
96#endif
97#if (CRT1_AREAS_NUMBER > 2) || defined(__DOXYGEN__)
98 {&__ram2_init_text__, &__ram2_init__, &__ram2_clear__, &__ram2_noinit__},
99#endif
100#if (CRT1_AREAS_NUMBER > 3) || defined(__DOXYGEN__)
101 {&__ram3_init_text__, &__ram3_init__, &__ram3_clear__, &__ram3_noinit__},
102#endif
103#if (CRT1_AREAS_NUMBER > 4) || defined(__DOXYGEN__)
104 {&__ram4_init_text__, &__ram4_init__, &__ram4_clear__, &__ram4_noinit__},
105#endif
106#if (CRT1_AREAS_NUMBER > 5) || defined(__DOXYGEN__)
107 {&__ram5_init_text__, &__ram5_init__, &__ram5_clear__, &__ram5_noinit__},
108#endif
109#if (CRT1_AREAS_NUMBER > 6) || defined(__DOXYGEN__)
110 {&__ram6_init_text__, &__ram6_init__, &__ram6_clear__, &__ram6_noinit__},
111#endif
112#if (CRT1_AREAS_NUMBER > 7) || defined(__DOXYGEN__)
113 {&__ram7_init_text__, &__ram7_init__, &__ram7_clear__, &__ram7_noinit__},
114#endif
115};
116#endif
117
118/*===========================================================================*/
119/* Module local functions. */
120/*===========================================================================*/
121
122/*===========================================================================*/
123/* Module exported functions. */
124/*===========================================================================*/
125
126/**
127 * @brief Architecture-dependent core initialization.
128 * @details This hook is invoked immediately after the stack initialization
129 * and before the DATA and BSS segments initialization.
130 * @note This function is a weak symbol.
131 */
132#if !defined(__DOXYGEN__)
133__attribute__((weak))
134#endif
135/*lint -save -e9075 [8.4] All symbols are invoked from asm context.*/
136void __core_init(void) {}
137
138/**
139 * @brief Early initialization.
140 * @details This hook is invoked immediately after the stack initialization
141 * and before the DATA and BSS segments initialization. The
142 * default behavior is to do nothing.
143 * @note This function is a weak symbol.
144 */
145#if !defined(__DOXYGEN__)
146__attribute__((weak))
147#endif
148/*lint -save -e9075 [8.4] All symbols are invoked from asm context.*/
149void __early_init(void) {}
150/*lint -restore*/
151
152/**
153 * @brief Late initialization.
154 * @details This hook is invoked after the DATA and BSS segments
155 * initialization and before any static constructor. The
156 * default behavior is to do nothing.
157 * @note This function is a weak symbol.
158 */
159#if !defined(__DOXYGEN__)
160__attribute__((weak))
161#endif
162/*lint -save -e9075 [8.4] All symbols are invoked from asm context.*/
163void __late_init(void) {}
164/*lint -restore*/
165
166/**
167 * @brief Default @p main() function exit handler.
168 * @details This handler is invoked or the @p main() function exit. The
169 * default behavior is to enter an infinite loop.
170 * @note This function is a weak symbol.
171 */
172#if !defined(__DOXYGEN__)
173__attribute__((noreturn, weak))
174#endif
175/*lint -save -e9075 [8.4] All symbols are invoked from asm context.*/
176void __default_exit(void) {
177/*lint -restore*/
178
179 while (true) {
180 }
181}
182
183/**
184 * @brief Performs the initialization of the various RAM areas.
185 */
186void __init_ram_areas(void) {
187#if CRT1_AREAS_NUMBER > 0
188 const ram_init_area_t *rap = ram_areas;
189
190 do {
191 uint32_t *tp = rap->init_text_area;
192 uint32_t *p = rap->init_area;
193
194 /* Copying initialization data.*/
195 while (p < rap->clear_area) {
196 *p = *tp;
197 p++;
198 tp++;
199 }
200
201 /* Zeroing clear area.*/
202 while (p < rap->no_init_area) {
203 *p = 0;
204 p++;
205 }
206 rap++;
207 }
208 while (rap < &ram_areas[CRT1_AREAS_NUMBER]);
209#endif
210}
211
212/** @} */
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