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Move s[n]printf to lib for release

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Signed-off-by: Li, Fei1 <fei1.li@intel.com>
This commit is contained in:
Li, Fei1
2018-03-21 18:46:14 +08:00
committed by Jack Ren
parent 819845c9bd
commit 36148041bc
6 changed files with 840 additions and 746 deletions
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37
hypervisor/include/debug/printf.h
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@@ -31,6 +31,7 @@
#ifndef PRINTF_H
#define PRINTF_H
#ifdef HV_DEBUG
/** The well known printf() function.
*
* Formats a string and writes it to the console output.
@@ -55,34 +56,18 @@ int printf(const char *fmt, ...);
int vprintf(const char *fmt, va_list args);
/** The well known vsnprintf() function.
*
* Formats and writes a string with a max. size to memory.
*
* @param dst A pointer to the destination memory.
* @param sz The size of the destination memory.
* @param fmt A pointer to the NUL terminated format string.
* @param args The variable long argument list as va_list.
* @return The number of bytes which would be written, even if the destination
* is smaller. On error a negative number is returned.
*/
#else /* HV_DEBUG */
int vsnprintf(char *dst, int sz, const char *fmt, va_list args);
static inline int printf(__unused const char *fmt, ...)
{
return 0;
}
/** The well known snprintf() function.
*
* Formats a string and writes it to the console output.
*
* @param dest Pointer to the destination memory.
* @param sz Max. size of dest.
* @param fmt A pointer to the NUL terminated format string.
*
* @return The number of characters would by written or a negative
* number if an error occurred.
*
* @bug sz == 0 doesn't work
*/
static inline int vprintf(__unused const char *fmt, __unused va_list args)
{
return 0;
}
int snprintf(char *dest, int sz, const char *fmt, ...);
#endif /* HV_DEBUG */
#endif /* PRINTF_H */

1
hypervisor/include/hv_lib.h
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@@ -42,5 +42,6 @@
#include <list.h>
#include <bits.h>
#include <strtol.h>
#include <sprintf.h>
#endif /* HV_LIB_H */

102
hypervisor/include/lib/sprintf.h Normal file
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@@ -0,0 +1,102 @@
/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SPRINTF_H
#define SPRINTF_H
/* Command for the emit function: copy string to output. */
#define PRINT_CMD_COPY 0x00000000
/* Command for the emit function: fill output with first character. */
#define PRINT_CMD_FILL 0x00000001
/* Structure used to parse parameters and variables to subroutines. */
struct print_param {
/* A pointer to the function that is used to emit characters. */
int (*emit)(int, const char *, int, void *);
/* An opaque pointer that is passed as third argument to the emit
* function.
*/
void *data;
/* Contains variables which are recalculated for each argument. */
struct {
/* A bitfield with the parsed format flags. */
int flags;
/* The parsed format width. */
int width;
/* The parsed format precision. */
int precision;
/* The bitmask for unsigned values. */
unsigned long long mask;
/* A pointer to the preformated value. */
const char *value;
/* The number of characters in the preformated value buffer. */
uint32_t valuelen;
/* A pointer to the values prefix. */
const char *prefix;
/* The number of characters in the prefix buffer. */
uint32_t prefixlen;
} vars;
};
int do_print(const char *fmt, struct print_param *param,
__builtin_va_list args);
/** The well known vsnprintf() function.
*
* Formats and writes a string with a max. size to memory.
*
* @param dst A pointer to the destination memory.
* @param sz The size of the destination memory.
* @param fmt A pointer to the NUL terminated format string.
* @param args The variable long argument list as va_list.
* @return The number of bytes which would be written, even if the destination
* is smaller. On error a negative number is returned.
*/
int vsnprintf(char *dst, int sz, const char *fmt, va_list args);
/** The well known snprintf() function.
*
* Formats a string and writes it to the console output.
*
* @param dest Pointer to the destination memory.
* @param sz Max. size of dest.
* @param fmt A pointer to the NUL terminated format string.
*
* @return The number of characters would by written or a negative
* number if an error occurred.
*
* @bug sz == 0 doesn't work
*/
int snprintf(char *dest, int sz, const char *fmt, ...);
#endif /* SPRINTF_H */