py/mpconfig: Provide config option for internal printf printer.
The C-level printf is usually used for internal debugging prints, and a port/board may want to redirect this somewhere other than stdout. Signed-off-by: Damien George <damien@micropython.org>
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@ -904,6 +904,11 @@ typedef double mp_float_t;
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#define MICROPY_USE_INTERNAL_PRINTF (1)
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#endif
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// The mp_print_t printer used for printf output when MICROPY_USE_INTERNAL_PRINTF is enabled
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#ifndef MICROPY_INTERNAL_PRINTF_PRINTER
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#define MICROPY_INTERNAL_PRINTF_PRINTER (&mp_plat_print)
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#endif
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// Support for internal scheduler
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#ifndef MICROPY_ENABLE_SCHEDULER
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#define MICROPY_ENABLE_SCHEDULER (MICROPY_CONFIG_ROM_LEVEL_AT_LEAST_EXTRA_FEATURES)
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@ -60,13 +60,13 @@ int snprintf(char *str, size_t size, const char *fmt, ...);
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int printf(const char *fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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int ret = mp_vprintf(&mp_plat_print, fmt, ap);
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int ret = mp_vprintf(MICROPY_INTERNAL_PRINTF_PRINTER, fmt, ap);
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va_end(ap);
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return ret;
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}
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int vprintf(const char *fmt, va_list ap) {
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return mp_vprintf(&mp_plat_print, fmt, ap);
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return mp_vprintf(MICROPY_INTERNAL_PRINTF_PRINTER, fmt, ap);
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}
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// need this because gcc optimises printf("%c", c) -> putchar(c), and printf("a") -> putchar('a')
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