core: printf: switch to an enhanced version of embedded printf
This commit is contained in:
1856
core/printf.c
1856
core/printf.c
File diff suppressed because it is too large
Load Diff
194
core/printf.h
194
core/printf.h
@@ -1,59 +1,161 @@
|
|||||||
///////////////////////////////////////////////////////////////////////////////
|
/**
|
||||||
// \author (c) Marco Paland (info@paland.com)
|
* @author (c) Eyal Rozenberg <eyalroz1@gmx.com>
|
||||||
// 2014-2019, PALANDesign Hannover, Germany
|
* 2021-2023, Haifa, Palestine/Israel
|
||||||
//
|
* @author (c) Marco Paland (info@paland.com)
|
||||||
// \license The MIT License (MIT)
|
* 2014-2019, PALANDesign Hannover, Germany
|
||||||
//
|
*
|
||||||
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
* @note Others have made smaller contributions to this file: see the
|
||||||
// of this software and associated documentation files (the "Software"), to deal
|
* contributors page at https://github.com/eyalroz/printf/graphs/contributors
|
||||||
// in the Software without restriction, including without limitation the rights
|
* or ask one of the authors.
|
||||||
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
*
|
||||||
// copies of the Software, and to permit persons to whom the Software is
|
* @brief Small stand-alone implementation of the printf family of functions
|
||||||
// furnished to do so, subject to the following conditions:
|
* (`(v)printf`, `(v)s(n)printf` etc., geared towards use on embedded systems
|
||||||
//
|
* with a very limited resources.
|
||||||
// The above copyright notice and this permission notice shall be included in
|
*
|
||||||
// all copies or substantial portions of the Software.
|
* @note the implementations are thread-safe; re-entrant; use no functions from
|
||||||
//
|
* the standard library; and do not dynamically allocate any memory.
|
||||||
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
*
|
||||||
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
* @license The MIT License (MIT)
|
||||||
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
*
|
||||||
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||||
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
* of this software and associated documentation files (the "Software"), to deal
|
||||||
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
* in the Software without restriction, including without limitation the rights
|
||||||
// THE SOFTWARE.
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||||
//
|
* copies of the Software, and to permit persons to whom the Software is
|
||||||
// \brief Tiny printf, sprintf and snprintf implementation, optimized for speed on
|
* furnished to do so, subject to the following conditions:
|
||||||
// embedded systems with a very limited resources.
|
*
|
||||||
// Use this instead of bloated standard/newlib printf.
|
* The above copyright notice and this permission notice shall be included in
|
||||||
// These routines are thread safe and reentrant.
|
* all copies or substantial portions of the Software.
|
||||||
//
|
*
|
||||||
///////////////////////////////////////////////////////////////////////////////
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||||
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||||
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||||
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||||
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||||
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||||
|
* THE SOFTWARE.
|
||||||
|
*/
|
||||||
|
|
||||||
#ifndef _PRINTF_H_
|
#ifndef PRINTF_H_
|
||||||
#define _PRINTF_H_
|
#define PRINTF_H_
|
||||||
|
|
||||||
#include <stdarg.h>
|
|
||||||
#include <stddef.h>
|
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
|
#include <cstdarg>
|
||||||
|
#include <cstddef>
|
||||||
extern "C" {
|
extern "C" {
|
||||||
|
#else
|
||||||
|
#include <stdarg.h>
|
||||||
|
#include <stddef.h>
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifdef __GNUC__
|
||||||
|
#if ((__GNUC__ == 4 && __GNUC_MINOR__ >= 4) || __GNUC__ > 4)
|
||||||
|
#define ATTR_PRINTF(one_based_format_index, first_arg) \
|
||||||
|
__attribute__((format(gnu_printf, (one_based_format_index), (first_arg))))
|
||||||
|
#else
|
||||||
|
#define ATTR_PRINTF(one_based_format_index, first_arg) \
|
||||||
|
__attribute__((format(printf, (one_based_format_index), (first_arg))))
|
||||||
|
#endif
|
||||||
|
#define ATTR_VPRINTF(one_based_format_index) \
|
||||||
|
ATTR_PRINTF((one_based_format_index), 0)
|
||||||
|
#else
|
||||||
|
#define ATTR_PRINTF(one_based_format_index, first_arg)
|
||||||
|
#define ATTR_VPRINTF(one_based_format_index)
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef PRINTF_ALIAS_STANDARD_FUNCTION_NAMES_SOFT
|
||||||
|
#define PRINTF_ALIAS_STANDARD_FUNCTION_NAMES_SOFT 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef PRINTF_ALIAS_STANDARD_FUNCTION_NAMES_HARD
|
||||||
|
#define PRINTF_ALIAS_STANDARD_FUNCTION_NAMES_HARD 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#if PRINTF_ALIAS_STANDARD_FUNCTION_NAMES_HARD
|
||||||
|
#define printf_ printf
|
||||||
|
#define sprintf_ sprintf
|
||||||
|
#define vsprintf_ vsprintf
|
||||||
|
#define snprintf_ snprintf
|
||||||
|
#define vsnprintf_ vsnprintf
|
||||||
|
#define vprintf_ vprintf
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// If you want to include this implementation file directly rather than
|
||||||
|
// link against it, this will let you control the functions' visibility,
|
||||||
|
// e.g. make them static so as not to clash with other objects also
|
||||||
|
// using them.
|
||||||
|
#ifndef PRINTF_VISIBILITY
|
||||||
|
#define PRINTF_VISIBILITY
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* printf with output function
|
* Prints/send a single character to some opaque output entity
|
||||||
* You may use this as dynamic alternative to printf() with its fixed _putchar()
|
*
|
||||||
* output \param out An output function which takes one character and an
|
* @note This function is not implemented by the library, only declared; you
|
||||||
* argument pointer \param arg An argument pointer for user data passed to
|
* must provide an implementation if you wish to use the @ref printf / @ref
|
||||||
* output function \param format A string that specifies the format of the
|
* vprintf function (and possibly for linking against the library, if your
|
||||||
* output \return The number of characters that are sent to the output function,
|
* toolchain does not support discarding unused functions)
|
||||||
* not counting the terminating null character
|
*
|
||||||
|
* @note The output could be as simple as a wrapper for the `write()` system
|
||||||
|
* call on a Unix-like * system, or even libc's @ref putchar , for replicating
|
||||||
|
* actual functionality of libc's @ref printf * function; but on an embedded
|
||||||
|
* system it may involve interaction with a special output device, like a UART,
|
||||||
|
* etc.
|
||||||
|
*
|
||||||
|
* @note in libc's @ref putchar, the parameter type is an int; this was intended
|
||||||
|
* to support the representation of either a proper character or EOF in a
|
||||||
|
* variable - but this is really not meaningful to pass into @ref putchar and is
|
||||||
|
* discouraged today. See further discussion in:
|
||||||
|
* @link https://stackoverflow.com/q/17452847/1593077
|
||||||
|
*
|
||||||
|
* @param c the single character to print
|
||||||
*/
|
*/
|
||||||
|
PRINTF_VISIBILITY
|
||||||
|
void putchar_(char c);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* printf/vprintf with user-specified output function
|
||||||
|
*
|
||||||
|
* An alternative to @ref printf_, in which the output function is specified
|
||||||
|
* dynamically (rather than @ref putchar_ being used)
|
||||||
|
*
|
||||||
|
* @param out An output function which takes one character and a type-erased
|
||||||
|
* additional parameters
|
||||||
|
* @param extra_arg The type-erased argument to pass to the output function @p
|
||||||
|
* out with each call
|
||||||
|
* @param format A string specifying the format of the output, with %-marked
|
||||||
|
* specifiers of how to interpret additional arguments.
|
||||||
|
* @param arg Additional arguments to the function, one for each specifier in
|
||||||
|
* @p format
|
||||||
|
* @return The number of characters for which the output f unction was invoked,
|
||||||
|
* not counting the terminating null character
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
PRINTF_VISIBILITY
|
||||||
int z__b_fctprintf(
|
int z__b_fctprintf(
|
||||||
void (*out)(char character, void *arg), void *arg, const char *format,
|
void (*out)(char c, void *extra_arg), void *extra_arg,
|
||||||
va_list va);
|
const char *format, va_list arg) ATTR_VPRINTF(3);
|
||||||
|
|
||||||
#ifdef __cplusplus
|
#ifdef __cplusplus
|
||||||
}
|
} // extern "C"
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
#endif // _PRINTF_H_
|
#if PRINTF_ALIAS_STANDARD_FUNCTION_NAMES_HARD
|
||||||
|
#undef printf_
|
||||||
|
#undef sprintf_
|
||||||
|
#undef vsprintf_
|
||||||
|
#undef snprintf_
|
||||||
|
#undef vsnprintf_
|
||||||
|
#undef vprintf_
|
||||||
|
#else
|
||||||
|
#if PRINTF_ALIAS_STANDARD_FUNCTION_NAMES_SOFT
|
||||||
|
#define printf printf_
|
||||||
|
#define sprintf sprintf_
|
||||||
|
#define vsprintf vsprintf_
|
||||||
|
#define snprintf snprintf_
|
||||||
|
#define vsnprintf vsnprintf_
|
||||||
|
#define vprintf vprintf_
|
||||||
|
#endif
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif // PRINTF_H_
|
||||||
|
|||||||
Reference in New Issue
Block a user