72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/* Copyright 2018 Canaan Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _BSP_ENTRY_H
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#define _BSP_ENTRY_H
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#include <stdlib.h>
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static inline void init_lma(void)
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{
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extern unsigned int _data_lma;
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extern unsigned int _data;
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extern unsigned int _edata;
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unsigned int *src, *dst;
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src = &_data_lma;
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dst = &_data;
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while (dst < &_edata)
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*dst++ = *src++;
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}
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static inline void init_bss(void)
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{
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extern unsigned int _bss;
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extern unsigned int _ebss;
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unsigned int *dst;
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dst = &_bss;
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while (dst < &_ebss)
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*dst++ = 0;
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}
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static inline void init_tls(void)
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{
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register void *thread_pointer asm("tp");
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extern char _tls_data;
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extern __thread char _tdata_begin, _tdata_end, _tbss_end;
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size_t tdata_size = &_tdata_end - &_tdata_begin;
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memcpy(thread_pointer, &_tls_data, tdata_size);
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size_t tbss_size = &_tbss_end - &_tdata_end;
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memset(thread_pointer + tdata_size, 0, tbss_size);
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* _BSP_ENTRY_H */
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