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Merge branch 'feature/newlib_fsync_without_vfs' into 'master'

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newlib: implement fsync for the case of CONFIG_VFS_SUPPORT_IO=0

See merge request espressif/esp-idf!21390
This commit is contained in:
Ivan Grokhotkov 2023-04-19 02:47:53 +08:00
commit 9adafb0f26
2 changed files with 19 additions and 0 deletions
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18
components/newlib/syscalls.c
View File

@ -73,6 +73,22 @@ static ssize_t _fstat_r_console(struct _reent *r, int fd, struct stat * st)
return -1;
}
static int _fsync_console(int fd)
{
if (fd == STDOUT_FILENO || fd == STDERR_FILENO) {
#ifdef CONFIG_ESP_CONSOLE_UART
esp_rom_uart_flush_tx(CONFIG_ESP_CONSOLE_UART_NUM);
#elif defined(CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG)
esp_rom_uart_flush_tx(CONFIG_ESP_ROM_USB_SERIAL_DEVICE_NUM);
#elif defined(CONFIG_ESP_CONSOLE_USB_CDC)
esp_rom_uart_flush_tx(CONFIG_ESP_ROM_USB_OTG_NUM);
#endif
return 0;
}
errno = EBADF;
return -1;
}
/* The following weak definitions of syscalls will be used unless
* another definition is provided. That definition may come from
@ -84,6 +100,8 @@ ssize_t _write_r(struct _reent *r, int fd, const void * data, size_t size)
__attribute__((weak,alias("_write_r_console")));
int _fstat_r (struct _reent *r, int fd, struct stat *st)
__attribute__((weak,alias("_fstat_r_console")));
int fsync(int fd)
__attribute__((weak,alias("_fsync_console")));
/* The aliases below are to "syscall_not_implemented", which

1
tools/test_apps/system/panic/main/test_panic.c
View File

@ -27,6 +27,7 @@ void die(const char* msg)
{
printf("Test error: %s\n\n", msg);
fflush(stdout);
fsync(fileno(stdout));
usleep(1000);
/* Don't use abort here as it would enter the panic handler */
esp_restart_noos();