From ae51f41d14f548d494ac41e0d21137c5a4c3f59c Mon Sep 17 00:00:00 2001 From: Iru Cai Date: Wed, 30 Oct 2019 14:21:52 +0800 Subject: import the U-Boot code and make it compile --- include/vsprintf.h | 215 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 215 insertions(+) create mode 100644 include/vsprintf.h (limited to 'include/vsprintf.h') diff --git a/include/vsprintf.h b/include/vsprintf.h new file mode 100644 index 0000000..d1740a3 --- /dev/null +++ b/include/vsprintf.h @@ -0,0 +1,215 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2000-2009 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + */ + +#ifndef __VSPRINTF_H +#define __VSPRINTF_H + +#include +#include + +ulong simple_strtoul(const char *cp, char **endp, unsigned int base); + +/** + * strict_strtoul - convert a string to an unsigned long strictly + * @param cp The string to be converted + * @param base The number base to use + * @param res The converted result value + * @return 0 if conversion is successful and *res is set to the converted + * value, otherwise it returns -EINVAL and *res is set to 0. + * + * strict_strtoul converts a string to an unsigned long only if the + * string is really an unsigned long string, any string containing + * any invalid char at the tail will be rejected and -EINVAL is returned, + * only a newline char at the tail is acceptible because people generally + * change a module parameter in the following way: + * + * echo 1024 > /sys/module/e1000/parameters/copybreak + * + * echo will append a newline to the tail. + * + * simple_strtoul just ignores the successive invalid characters and + * return the converted value of prefix part of the string. + * + * Copied this function from Linux 2.6.38 commit ID: + * 521cb40b0c44418a4fd36dc633f575813d59a43d + * + */ +int strict_strtoul(const char *cp, unsigned int base, unsigned long *res); +unsigned long long simple_strtoull(const char *cp, char **endp, + unsigned int base); +long simple_strtol(const char *cp, char **endp, unsigned int base); + +/** + * trailing_strtol() - extract a trailing integer from a string + * + * Given a string this finds a trailing number on the string and returns it. + * For example, "abc123" would return 123. + * + * @str: String to exxamine + * @return training number if found, else -1 + */ +long trailing_strtol(const char *str); + +/** + * trailing_strtoln() - extract a trailing integer from a fixed-length string + * + * Given a fixed-length string this finds a trailing number on the string + * and returns it. For example, "abc123" would return 123. Only the + * characters between @str and @end - 1 are examined. If @end is NULL, it is + * set to str + strlen(str). + * + * @str: String to exxamine + * @end: Pointer to end of string to examine, or NULL to use the + * whole string + * @return training number if found, else -1 + */ +long trailing_strtoln(const char *str, const char *end); + +/** + * panic() - Print a message and reset/hang + * + * Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is + * defined, then it will hang instead of resetting. + * + * @param fmt: printf() format string for message, which should not include + * \n, followed by arguments + */ +void panic(const char *fmt, ...) + __attribute__ ((format (__printf__, 1, 2), noreturn)); + +/** + * panic_str() - Print a message and reset/hang + * + * Prints a message on the console(s) and then resets. If CONFIG_PANIC_HANG is + * defined, then it will hang instead of resetting. + * + * This function can be used instead of panic() when your board does not + * already use printf(), * to keep code size small. + * + * @param fmt: string to display, which should not include \n + */ +void panic_str(const char *str) __attribute__ ((noreturn)); + +/** + * Format a string and place it in a buffer + * + * @param buf The buffer to place the result into + * @param fmt The format string to use + * @param ... Arguments for the format string + * + * The function returns the number of characters written + * into @buf. + * + * See the vsprintf() documentation for format string extensions over C99. + */ +int sprintf(char *buf, const char *fmt, ...) + __attribute__ ((format (__printf__, 2, 3))); + +/** + * Format a string and place it in a buffer (va_list version) + * + * @param buf The buffer to place the result into + * @param fmt The format string to use + * @param args Arguments for the format string + * @return the number of characters which have been written into + * the @buf not including the trailing '\0'. + * + * If you're not already dealing with a va_list consider using scnprintf(). + * + * See the vsprintf() documentation for format string extensions over C99. + */ +int vsprintf(char *buf, const char *fmt, va_list args); +char *simple_itoa(ulong i); + +/** + * Format a string and place it in a buffer + * + * @param buf The buffer to place the result into + * @param size The size of the buffer, including the trailing null space + * @param fmt The format string to use + * @param ... Arguments for the format string + * @return the number of characters which would be + * generated for the given input, excluding the trailing null, + * as per ISO C99. If the return is greater than or equal to + * @size, the resulting string is truncated. + * + * See the vsprintf() documentation for format string extensions over C99. + */ +int snprintf(char *buf, size_t size, const char *fmt, ...) + __attribute__ ((format (__printf__, 3, 4))); + +/** + * Format a string and place it in a buffer + * + * @param buf The buffer to place the result into + * @param size The size of the buffer, including the trailing null space + * @param fmt The format string to use + * @param ... Arguments for the format string + * + * The return value is the number of characters written into @buf not including + * the trailing '\0'. If @size is == 0 the function returns 0. + * + * See the vsprintf() documentation for format string extensions over C99. + */ +int scnprintf(char *buf, size_t size, const char *fmt, ...) + __attribute__ ((format (__printf__, 3, 4))); + +/** + * Format a string and place it in a buffer (base function) + * + * @param buf The buffer to place the result into + * @param size The size of the buffer, including the trailing null space + * @param fmt The format string to use + * @param args Arguments for the format string + * @return The number characters which would be generated for the given + * input, excluding the trailing '\0', as per ISO C99. Note that fewer + * characters may be written if this number of characters is >= size. + * + * This function follows C99 vsnprintf, but has some extensions: + * %pS output the name of a text symbol + * %pF output the name of a function pointer + * %pR output the address range in a struct resource + * + * The function returns the number of characters which would be + * generated for the given input, excluding the trailing '\0', + * as per ISO C99. + * + * Call this function if you are already dealing with a va_list. + * You probably want snprintf() instead. + */ +int vsnprintf(char *buf, size_t size, const char *fmt, va_list args); + +/** + * Format a string and place it in a buffer (va_list version) + * + * @param buf The buffer to place the result into + * @param size The size of the buffer, including the trailing null space + * @param fmt The format string to use + * @param args Arguments for the format string + * @return the number of characters which have been written into + * the @buf not including the trailing '\0'. If @size is == 0 the function + * returns 0. + * + * If you're not already dealing with a va_list consider using scnprintf(). + * + * See the vsprintf() documentation for format string extensions over C99. + */ +int vscnprintf(char *buf, size_t size, const char *fmt, va_list args); + +/** + * print_grouped_ull() - print a value with digits grouped by ',' + * + * This prints a value with grouped digits, like 12,345,678 to make it easier + * to read. + * + * @val: Value to print + * @digits: Number of digiits to print + */ +void print_grouped_ull(unsigned long long int_val, int digits); + +bool str2off(const char *p, loff_t *num); +bool str2long(const char *p, ulong *num); +#endif -- cgit v1.2.3