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Fix spiff and stdin_uart_interrupt overiding the same read function

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This commit is contained in:
sheinz 2016-10-23 14:04:34 +03:00
parent 2994a566a6
commit 3eb784b758
3 changed files with 16 additions and 17 deletions
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16
core/newlib_syscalls.c
View file

@ -59,14 +59,9 @@ __attribute__((weak)) long _write_r(struct _reent *r, int fd, const char *ptr, i
}
/* syscall implementation for stdio read from UART */
__attribute__((weak)) long _read_r( struct _reent *r, int fd, char *ptr, int len )
__attribute__((weak)) long _read_stdin_r(struct _reent *r, int fd, char *ptr, int len)
{
int ch, i;
if(fd != r->_stdin->_file) {
r->_errno = EBADF;
return -1;
}
uart_rxfifo_wait(0, 1);
for(i = 0; i < len; i++) {
ch = uart_getc_nowait(0);
@ -76,6 +71,15 @@ __attribute__((weak)) long _read_r( struct _reent *r, int fd, char *ptr, int len
return i;
}
__attribute__((weak)) long _read_r( struct _reent *r, int fd, char *ptr, int len )
{
if(fd != r->_stdin->_file) {
r->_errno = EBADF;
return -1;
}
return _read_stdin_r(r, fd, ptr, len);
}
/* Stub syscall implementations follow, to allow compiling newlib functions that
pull these in via various codepaths
*/

13
extras/spiffs/esp_spiffs.c
View file

@ -141,21 +141,16 @@ long _write_r(struct _reent *r, int fd, const char *ptr, int len )
return len;
}
// This function is weakly defined in core/newlib_syscalls.c
long _read_stdin_r(struct _reent *r, int fd, char *ptr, int len);
// This implementation replaces implementation in core/newlib_syscals.c
long _read_r( struct _reent *r, int fd, char *ptr, int len )
{
int ch, i;
if(fd != r->_stdin->_file) {
return SPIFFS_read(&fs, (spiffs_file)fd, ptr, len);
}
uart_rxfifo_wait(0, 1);
for(i = 0; i < len; i++) {
ch = uart_getc_nowait(0);
if (ch < 0) break;
ptr[i] = ch;
}
return i;
return _read_stdin_r(r, fd, ptr, len);
}
int _open_r(struct _reent *r, const char *pathname, int flags, int mode)

4
extras/stdin_uart_interrupt/stdin_uart_interrupt.c
View file

@ -75,9 +75,9 @@ uint32_t uart0_num_char(void)
return count;
}
// _read_r in core/newlib_syscalls.c will be skipped by the linker in favour
// _read_stdin_r in core/newlib_syscalls.c will be skipped by the linker in favour
// of this function
long _read_r(struct _reent *r, int fd, char *ptr, int len)
long _read_stdin_r(struct _reent *r, int fd, char *ptr, int len)
{
if (!inited) uart0_rx_init();
for(int i = 0; i < len; i++) {