9240bbb708
In some cases, linker could choose to use ROM functions instead of the ones defined in IDF. For functions used in ROM stub table, this would lead to infinite recursion when the corresponding function was called from ROM. For crypto functions, some of these were modified in IDF, and incompatible with ROM counterparts.
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
// Copyright 2015-2016 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 "rom/libc_stubs.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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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 = &esp_vfs_rename,
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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 = &esp_vfs_unlink,
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._link_r = &esp_vfs_link,
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._stat_r = &esp_vfs_stat,
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._fstat_r = &esp_vfs_fstat,
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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 = &esp_vfs_close,
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._open_r = &esp_vfs_open,
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._write_r = (int (*)(struct _reent *r, int, const void *, int)) &esp_vfs_write,
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._lseek_r = (int (*)(struct _reent *r, int, int, int)) &esp_vfs_lseek,
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._read_r = (int (*)(struct _reent *r, int, void *, int)) &esp_vfs_read,
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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()
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{
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syscall_table_ptr_pro = &s_stub_table;
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syscall_table_ptr_app = &s_stub_table;
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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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