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@ -32,17 +32,17 @@
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* @name Heaps (defined in linker script)
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* @{
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*/
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#define NUM_HEAPS 1
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#define NUM_HEAPS 1
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#define DEBUG_SYSCALLS 0
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#define DEBUG_SYSCALLS 0
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#if DEBUG_SYSCALLS
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#define PRINTF(...) printf(__VA_ARGS__)
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#define PRINTF(...) printf(__VA_ARGS__)
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#else
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#define PRINTF(...)
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#endif
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extern uintptr_t __heap_start; ///< start of heap memory space
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extern uintptr_t __heap_max; ///< maximum for end of heap memory space
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extern uintptr_t __heap_start; ///< start of heap memory space
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extern uintptr_t __heap_max; ///< maximum for end of heap memory space
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/// current position in heap
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static caddr_t heap[NUM_HEAPS] = {(caddr_t)&__heap_start};
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@ -57,20 +57,20 @@ volatile static uint8_t iUsedHeap = 0;
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/*-----------------------------------------------------------------------------------*/
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void heap_stats(void) {
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for(int i = 0; i < NUM_HEAPS; i++)
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printf("# heap %i: %p -- %p -> %p (%li of %li free)\n", i, heap_start[i], heap[i], heap_max[i],
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(uint32_t)heap_max[i] - (uint32_t)heap[i], (uint32_t)heap_max[i] - (uint32_t)heap_start[i]);
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for(int i = 0; i < NUM_HEAPS; i++)
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printf("# heap %i: %p -- %p -> %p (%li of %li free)\n", i, heap_start[i], heap[i], heap_max[i],
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(uint32_t)heap_max[i] - (uint32_t)heap[i], (uint32_t)heap_max[i] - (uint32_t)heap_start[i]);
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}
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/*-----------------------------------------------------------------------------------*/
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void __assert_func(const char *file, int line, const char *func, const char *failedexpr)
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{
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printf("#! assertion %s failed\n\t%s() in %s:%d\n", failedexpr, func, file, line );
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_exit(3);
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printf("#! assertion %s failed\n\t%s() in %s:%d\n", failedexpr, func, file, line );
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_exit(3);
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}
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/*-----------------------------------------------------------------------------------*/
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void __assert(const char *file, int line, const char *failedexpr)
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{
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__assert_func(file, line, "?", failedexpr);
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__assert_func(file, line, "?", failedexpr);
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}
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/*-----------------------------------------------------------------------------------*/
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caddr_t _sbrk_r(struct _reent *r, size_t incr)
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@ -85,150 +85,150 @@ caddr_t _sbrk_r(struct _reent *r, size_t incr)
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uint32_t cpsr = disableIRQ();
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/* check all heaps for a chunk of the requested size */
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for( ; iUsedHeap < NUM_HEAPS; iUsedHeap++ ) {
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caddr_t new_heap = heap[iUsedHeap] + incr;
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for( ; iUsedHeap < NUM_HEAPS; iUsedHeap++ ) {
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caddr_t new_heap = heap[iUsedHeap] + incr;
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if( new_heap <= heap_max[iUsedHeap] ) {
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caddr_t prev_heap = heap[iUsedHeap];
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heap[iUsedHeap] = new_heap;
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if( new_heap <= heap_max[iUsedHeap] ) {
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caddr_t prev_heap = heap[iUsedHeap];
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heap[iUsedHeap] = new_heap;
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r->_errno = 0;
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restoreIRQ(cpsr);
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return prev_heap;
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}
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}
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restoreIRQ(cpsr);
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r->_errno = 0;
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restoreIRQ(cpsr);
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return prev_heap;
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}
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}
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restoreIRQ(cpsr);
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r->_errno = ENOMEM;
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return NULL;
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r->_errno = ENOMEM;
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return NULL;
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}
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/*---------------------------------------------------------------------------*/
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int _isatty_r(struct _reent *r, int fd)
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{
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r->_errno = 0;
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if( fd == STDOUT_FILENO || fd == STDERR_FILENO )
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return 1;
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else
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return 0;
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r->_errno = 0;
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if( fd == STDOUT_FILENO || fd == STDERR_FILENO )
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return 1;
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else
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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_off_t _lseek_r(struct _reent *r, int fd, _off_t pos, int whence)
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{
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_off_t result = -1;
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PRINTF("lseek [%i] pos %li whence %i\n", fd, pos, whence);
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_off_t result = -1;
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PRINTF("lseek [%i] pos %li whence %i\n", fd, pos, whence);
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r->_errno = ENODEV;
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r->_errno = ENODEV;
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PRINTF("lseek returned %li (0 is success)\n", result);
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return result;
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PRINTF("lseek returned %li (0 is success)\n", result);
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return result;
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}
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/*---------------------------------------------------------------------------*/
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int _open_r(struct _reent *r, const char *name, int mode)
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{
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int ret = -1;
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PRINTF("open '%s' mode %#x\n", name, mode);
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int ret = -1;
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PRINTF("open '%s' mode %#x\n", name, mode);
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r->_errno = ENODEV; // no such device
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r->_errno = ENODEV; // no such device
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PRINTF("open [%i] errno %i\n", ret, r->_errno);
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return ret;
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PRINTF("open [%i] errno %i\n", ret, r->_errno);
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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int _stat_r(struct _reent *r, char *name, struct stat *st)
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{
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int ret = -1;
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PRINTF("_stat_r '%s' \n", name);
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r->_errno = ENODEV; // no such device
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PRINTF("_stat_r [%i] errno %i\n", ret, r->_errno);
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return ret;
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int ret = -1;
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PRINTF("_stat_r '%s' \n", name);
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r->_errno = ENODEV; // no such device
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PRINTF("_stat_r [%i] errno %i\n", ret, r->_errno);
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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int _fstat_r(struct _reent *r, int fd, struct stat * st)
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{
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int ret = -1;
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r->_errno = 0;
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memset(st, 0, sizeof(*st));
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if (fd == STDOUT_FILENO || fd == STDERR_FILENO) {
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st->st_mode = S_IFCHR;
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ret = 0;
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}
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int ret = -1;
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r->_errno = 0;
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memset(st, 0, sizeof(*st));
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if (fd == STDOUT_FILENO || fd == STDERR_FILENO) {
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st->st_mode = S_IFCHR;
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ret = 0;
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}
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else {
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r->_errno = ENODEV;
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}
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return ret;
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}
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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int _write_r(struct _reent *r, int fd, const void *data, unsigned int count)
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{
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int result = EOF;
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r->_errno = EBADF;
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switch(fd) {
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case STDOUT_FILENO:
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case STDERR_FILENO:
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{
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//FIXME impl fw_puts
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//char* chars = (char*) data;
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for(int i = 0;i < count;i++) {
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//USART_SendData(USART2, chars[i]);
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/* Loop until the end of transmission */
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//while (USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET){}
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}
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return count;
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//result = fw_puts((char*)data, count);
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}
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break;
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default:
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break;
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}
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int result = EOF;
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r->_errno = EBADF;
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switch(fd) {
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case STDOUT_FILENO:
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case STDERR_FILENO:
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{
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//FIXME impl fw_puts
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//char* chars = (char*) data;
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for(int i = 0;i < count;i++) {
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//USART_SendData(USART2, chars[i]);
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/* Loop until the end of transmission */
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//while (USART_GetFlagStatus(USART2, USART_FLAG_TC) == RESET){}
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}
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return count;
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//result = fw_puts((char*)data, count);
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}
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break;
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default:
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break;
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}
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return result;
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return result;
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}
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/*---------------------------------------------------------------------------*/
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int _read_r(struct _reent *r, int fd, void *buffer, unsigned int count)
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{
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int result = -1;
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r->_errno = EBADF;
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return result;
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int result = -1;
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r->_errno = EBADF;
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return result;
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}
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/*---------------------------------------------------------------------------*/
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int _close_r(struct _reent *r, int fd)
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{
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int ret = -1;
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r->_errno = EBADF;
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return ret;
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int ret = -1;
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r->_errno = EBADF;
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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int _unlink_r(struct _reent *r, char* path)
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{
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int ret = -1;
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r->_errno = ENODEV;
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return ret;
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int ret = -1;
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r->_errno = ENODEV;
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return ret;
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}
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/*---------------------------------------------------------------------------*/
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void _exit(int n)
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{
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printf("#! exit %i: resetting\n", n);
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printf("#! exit %i: resetting\n", n);
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//FIXME write out all peripherie buffers stdout flush
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NVIC_SystemReset();
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while(1);
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//FIXME write out all peripherie buffers stdout flush
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NVIC_SystemReset();
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while(1);
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}
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/*---------------------------------------------------------------------------*/
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int _getpid(void)
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{
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return sched_active_thread->pid;
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return sched_active_thread->pid;
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}
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/*---------------------------------------------------------------------------*/
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int _kill_r(struct _reent *r, int pid, int sig)
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{
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/* not implemented */
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r->_errno = ESRCH; // no such process
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return -1;
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/* not implemented */
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r->_errno = ESRCH; // no such process
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return -1;
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}
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/*---------------------------------------------------------------------------*/
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#ifdef MODULE_VTIMER
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Oleg Hahm
9 years ago