STM32F4 ETHERNET

DmitryG 0

19 февраля, 2017

Опубликовано 19 февраля, 2017 (изменено) · Жалоба

Здравствуйте!

Проект: Организация сервера на базе Stm32f4.

Добавил в проект HTML файл. Обновил с помощью программы makefsdata файл fsdata.c. Удалил устаревший fsdata.c.

Однако, Отладчик ругается, что HTML файлы, загружаемые в память микроконтроллера,

инициализированы одновременно в двух файлах.

(Error: L6200E: Symbol file__index_html multiply defined (by fs.o and fsdata.o))

Файл fs.c

Код

#include "lwip/opt.h"
#include "lwip/def.h"
#include "fs.h"
#include "fsdata.h"
#include <string.h>

/** Set this to 1 to include "fsdata_custom.c" instead of "fsdata.c" for the
* file system (to prevent changing the file included in CVS) */
#ifndef HTTPD_USE_CUSTUM_FSDATA
#define HTTPD_USE_CUSTUM_FSDATA 0
#endif

#if HTTPD_USE_CUSTUM_FSDATA
#include "fsdata_custom.c"
#else /* HTTPD_USE_CUSTUM_FSDATA */
#include "fsdata.c"
#endif /* HTTPD_USE_CUSTUM_FSDATA */

/*-----------------------------------------------------------------------------------*/
/* Define the number of open files that we can support. */
#ifndef LWIP_MAX_OPEN_FILES
#define LWIP_MAX_OPEN_FILES	 10
#endif

/* Define the file system memory allocation structure. */
struct fs_table {
 struct fs_file file;
 u8_t inuse;
};

/* Allocate file system memory */
struct fs_table fs_memory[LWIP_MAX_OPEN_FILES];

#if LWIP_HTTPD_CUSTOM_FILES
int fs_open_custom(struct fs_file *file, const char *name);
void fs_close_custom(struct fs_file *file);
#endif /* LWIP_HTTPD_CUSTOM_FILES */

/*-----------------------------------------------------------------------------------*/
static struct fs_file *
fs_malloc(void)
{
 int i;
 for(i = 0; i < LWIP_MAX_OPEN_FILES; i++) {
if(fs_memory[i].inuse == 0) {
  fs_memory[i].inuse = 1;
  return(&fs_memory[i].file);
}
 }
 return(NULL);
}

/*-----------------------------------------------------------------------------------*/
static void
fs_free(struct fs_file *file)
{
 int i;
 for(i = 0; i < LWIP_MAX_OPEN_FILES; i++) {
if(&fs_memory[i].file == file) {
  fs_memory[i].inuse = 0;
  break;
}
 }
 return;
}

/*-----------------------------------------------------------------------------------*/
struct fs_file *
fs_open(const char *name)
{
 struct fs_file *file;
 const struct fsdata_file *f;

 file = fs_malloc();
 if(file == NULL) {
return NULL;
 }

#if LWIP_HTTPD_CUSTOM_FILES
 if(fs_open_custom(file, name)) {
file->is_custom_file = 1;
return file;
 }
 file->is_custom_file = 0;
#endif /* LWIP_HTTPD_CUSTOM_FILES */

 for(f = FS_ROOT; f != NULL; f = f->next) {
if (!strcmp(name, (char *)f->name)) {
  file->data = (const char *)f->data;
  file->len = f->len;
  file->index = f->len;
  file->pextension = NULL;
  file->http_header_included = f->http_header_included;
#if HTTPD_PRECALCULATED_CHECKSUM
  file->chksum_count = f->chksum_count;
  file->chksum = f->chksum;
#endif /* HTTPD_PRECALCULATED_CHECKSUM */
#if LWIP_HTTPD_FILE_STATE
  file->state = fs_state_init(file, name);
#endif /* #if LWIP_HTTPD_FILE_STATE */
  return file;
}
 }
 fs_free(file);
 return NULL;
}

/*-----------------------------------------------------------------------------------*/
void
fs_close(struct fs_file *file)
{
#if LWIP_HTTPD_CUSTOM_FILES
 if (file->is_custom_file) {
fs_close_custom(file);
 }
#endif /* LWIP_HTTPD_CUSTOM_FILES */
#if LWIP_HTTPD_FILE_STATE
 fs_state_free(file, file->state);
#endif /* #if LWIP_HTTPD_FILE_STATE */
 fs_free(file);
}
/*-----------------------------------------------------------------------------------*/
int
fs_read(struct fs_file *file, char *buffer, int count)
{
 int read;

 if(file->index == file->len) {
return -1;
 }

 read = file->len - file->index;
 if(read > count) {
read = count;
 }

 MEMCPY(buffer, (file->data + file->index), read);
 file->index += read;

 return(read);
}
/*-----------------------------------------------------------------------------------*/
int fs_bytes_left(struct fs_file *file)
{
 return file->len - file->index;
}

Файл fsdata.c

Код

#include "fs.h"
#include "lwip/def.h"
#include "fsdata.h"


#define file_NULL (struct fsdata_file *) NULL


static const unsigned int dummy_align__index_html = 0;
static const unsigned char data__index_html[] = {
/* /index.html (12 chars) */
0x2f,0x69,0x6e,0x64,0x65,0x78,0x2e,0x68,0x74,0x6d,0x6c,0x00,

/* HTTP header */
/* "HTTP/1.0 200 OK
" (17 bytes) */
0x48,0x54,0x54,0x50,0x2f,0x31,0x2e,0x30,0x20,0x32,0x30,0x30,0x20,0x4f,0x4b,0x0d,
0x0a,
/* "Server: lwIP/1.3.1 (http://savannah.nongnu.org/projects/lwip)
" (63 bytes) */
0x53,0x65,0x72,0x76,0x65,0x72,0x3a,0x20,0x6c,0x77,0x49,0x50,0x2f,0x31,0x2e,0x33,
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/* "Content-type: text/html

" (27 bytes) */
0x43,0x6f,0x6e,0x74,0x65,0x6e,0x74,0x2d,0x74,0x79,0x70,0x65,0x3a,0x20,0x74,0x65,
0x78,0x74,0x2f,0x68,0x74,0x6d,0x6c,0x0d,0x0a,0x0d,0x0a,
/* raw file data (569 bytes) */
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const struct fsdata_file file__index_html[] = { {
file_NULL,
data__index_html,
data__index_html + 12,
sizeof(data__index_html) - 12,
1,
}};

#define FS_ROOT file__index_html
#define FS_NUMFILES 1

Примечательно, что подобные операции в оригинальном проекте от ST стабильно работают.

Подскажите, пожалуйста, что не так?

Изменено 19 февраля, 2017 пользователем IgorKossak
[codebox] для длинного кода, [code] - для короткого!