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	ESP32 ECO3 ROM uses syscall_table_ptr_app on both CPUs, so the pointer needs to be set if running in single core mode.
		
			
				
	
	
		
			111 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			111 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
// Copyright 2015-2019 Espressif Systems (Shanghai) PTE LTD
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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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#include <string.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/signal.h>
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#include <sys/unistd.h>
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#include <sys/reent.h>
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#include "esp_vfs.h"
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#include "esp_newlib.h"
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#include "sdkconfig.h"
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#include "soc/soc_caps.h"
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#if CONFIG_IDF_TARGET_ESP32
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#include "esp32/rom/libc_stubs.h"
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#elif CONFIG_IDF_TARGET_ESP32S2
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#include "esp32s2/rom/libc_stubs.h"
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#endif
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static struct _reent s_reent;
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extern int _printf_float(struct _reent *rptr,
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               void *pdata,
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               FILE * fp,
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               int (*pfunc) (struct _reent *, FILE *, const char *, size_t len),
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               va_list * ap);
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extern int _scanf_float(struct _reent *rptr,
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              void *pdata,
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              FILE *fp,
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              va_list *ap);
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static void raise_r_stub(struct _reent *rptr)
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{
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    _raise_r(rptr, 0);
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}
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static struct syscall_stub_table s_stub_table = {
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    .__getreent = &__getreent,
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    ._malloc_r = &_malloc_r,
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    ._free_r = &_free_r,
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    ._realloc_r = &_realloc_r,
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    ._calloc_r = &_calloc_r,
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    ._abort = &abort,
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    ._system_r = &_system_r,
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    ._rename_r = &_rename_r,
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    ._times_r = &_times_r,
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    ._gettimeofday_r = &_gettimeofday_r,
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    ._raise_r = &raise_r_stub,
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    ._unlink_r = &_unlink_r,
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    ._link_r = &_link_r,
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    ._stat_r = &_stat_r,
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    ._fstat_r = &_fstat_r,
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    ._sbrk_r = &_sbrk_r,
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    ._getpid_r = &_getpid_r,
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    ._kill_r = &_kill_r,
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    ._exit_r = NULL,    // never called in ROM
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    ._close_r = &_close_r,
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    ._open_r = &_open_r,
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    ._write_r = (int (*)(struct _reent *r, int, const void *, int)) &_write_r,
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    ._lseek_r = (int (*)(struct _reent *r, int, int, int)) &_lseek_r,
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    ._read_r = (int (*)(struct _reent *r, int, void *, int)) &_read_r,
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    ._lock_init = &_lock_init,
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    ._lock_init_recursive = &_lock_init_recursive,
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    ._lock_close = &_lock_close,
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    ._lock_close_recursive = &_lock_close_recursive,
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    ._lock_acquire = &_lock_acquire,
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    ._lock_acquire_recursive = &_lock_acquire_recursive,
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    ._lock_try_acquire = &_lock_try_acquire,
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    ._lock_try_acquire_recursive = &_lock_try_acquire_recursive,
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    ._lock_release = &_lock_release,
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    ._lock_release_recursive = &_lock_release_recursive,
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#ifdef CONFIG_NEWLIB_NANO_FORMAT
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    ._printf_float = &_printf_float,
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    ._scanf_float = &_scanf_float,
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#else
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    ._printf_float = NULL,
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    ._scanf_float = NULL,
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#endif
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};
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void esp_setup_syscall_table(void)
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{
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    syscall_table_ptr_pro = &s_stub_table;
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#if SOC_CPU_CORES_NUM == 2
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    syscall_table_ptr_app = &s_stub_table;
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#endif
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    _GLOBAL_REENT = &s_reent;
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    environ = malloc(sizeof(char*));
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    environ[0] = NULL;
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}
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