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Ignore whitespace Rev 3408 → Rev 3409

/branches/dynload/kernel/generic/src/lib/memstr.c
34,12 → 34,10
* @file
* @brief Memory string operations.
*
* This file provides architecture independent functions
* to manipulate blocks of memory. These functions
* are optimized as much as generic functions of
* this type can be. However, architectures are
* free to provide even more optimized versions of these
* functions.
* This file provides architecture independent functions to manipulate blocks of
* memory. These functions are optimized as much as generic functions of this
* type can be. However, architectures are free to provide even more optimized
* versions of these functions.
*/
 
#include <memstr.h>
46,32 → 44,33
#include <arch/types.h>
#include <align.h>
 
/** Copy block of memory
/** Copy block of memory.
*
* Copy cnt bytes from src address to dst address.
* The copying is done word-by-word and then byte-by-byte.
* The source and destination memory areas cannot overlap.
* Copy cnt bytes from src address to dst address. The copying is done
* word-by-word and then byte-by-byte. The source and destination memory areas
* cannot overlap.
*
* @param src Origin address to copy from.
* @param dst Origin address to copy to.
* @param cnt Number of bytes to copy.
* @param src Source address to copy from.
* @param dst Destination address to copy to.
* @param cnt Number of bytes to copy.
*
* @return Destination address.
*/
void *_memcpy(void * dst, const void *src, size_t cnt)
void *_memcpy(void *dst, const void *src, size_t cnt)
{
unsigned int i, j;
if (ALIGN_UP((uintptr_t) src, sizeof(unative_t)) != (uintptr_t) src ||
ALIGN_UP((uintptr_t) dst, sizeof(unative_t)) != (uintptr_t) dst) {
ALIGN_UP((uintptr_t) dst, sizeof(unative_t)) != (uintptr_t) dst) {
for (i = 0; i < cnt; i++)
((uint8_t *) dst)[i] = ((uint8_t *) src)[i];
} else {
for (i = 0; i < cnt / sizeof(unative_t); i++)
((unative_t *) dst)[i] = ((unative_t *) src)[i];
for (j = 0; j < cnt % sizeof(unative_t); j++)
((uint8_t *)(((unative_t *) dst) + i))[j] = ((uint8_t *)(((unative_t *) src) + i))[j];
((uint8_t *)(((unative_t *) dst) + i))[j] =
((uint8_t *)(((unative_t *) src) + i))[j];
}
return (char *) dst;
79,12 → 78,12
 
/** Fill block of memory
*
* Fill cnt bytes at dst address with the value x.
* The filling is done byte-by-byte.
* Fill cnt bytes at dst address with the value x. The filling is done
* byte-by-byte.
*
* @param dst Origin address to fill.
* @param cnt Number of bytes to fill.
* @param x Value to fill.
* @param dst Destination address to fill.
* @param cnt Number of bytes to fill.
* @param x Value to fill.
*
*/
void _memsetb(void *dst, size_t cnt, uint8_t x)
96,14 → 95,14
p[i] = x;
}
 
/** Fill block of memory
/** Fill block of memory.
*
* Fill cnt words at dst address with the value x.
* The filling is done word-by-word.
* Fill cnt words at dst address with the value x. The filling is done
* word-by-word.
*
* @param dst Origin address to fill.
* @param cnt Number of words to fill.
* @param x Value to fill.
* @param dst Destination address to fill.
* @param cnt Number of words to fill.
* @param x Value to fill.
*
*/
void _memsetw(void *dst, size_t cnt, uint16_t x)
115,16 → 114,16
p[i] = x;
}
 
/** Copy string
/** Copy string.
*
* Copy string from src address to dst address.
* The copying is done char-by-char until the null
* character. The source and destination memory areas
* cannot overlap.
* Copy string from src address to dst address. The copying is done
* char-by-char until the null character. The source and destination memory
* areas cannot overlap.
*
* @param src Origin string to copy from.
* @param dst Origin string to copy to.
* @param src Source string to copy from.
* @param dst Destination string to copy to.
*
* @return Address of the destination string.
*/
char *strcpy(char *dest, const char *src)
{
/branches/dynload/kernel/arch/ppc32/include/asm/regname.h
214,8 → 214,8
#define hid0 1008
 
/* MSR bits */
#define msr_ir (1 << 4)
#define msr_dr (1 << 5)
#define msr_dr (1 << 4)
#define msr_ir (1 << 5)
#define msr_pr (1 << 14)
#define msr_ee (1 << 15)
 
/branches/dynload/kernel/arch/ppc32/include/exception.h
36,6 → 36,7
#define KERN_ppc32_EXCEPTION_H_
 
#include <arch/types.h>
#include <arch/regutils.h>
 
typedef struct {
uint32_t r0;
84,11 → 85,10
}
 
/** Return true if exception happened while in userspace */
#include <panic.h>
static inline int istate_from_uspace(istate_t *istate)
{
panic("istate_from_uspace not yet implemented");
return 0;
/* true if privilege level PR (copied from MSR) == 1 */
return (istate->srr1 & MSR_PR) != 0;
}
 
static inline unative_t istate_get_pc(istate_t *istate)
/branches/dynload/kernel/arch/ppc32/include/regutils.h
0,0 → 1,45
/*
* Copyright (c) 2008 Jiri Svoboda
* 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.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
 
/** @addtogroup ppc32
* @{
*/
/**
* @file
* @brief Utilities for convenient manipulation with ppc32 registers.
*/
 
#ifndef KERN_ppc32_REGUTILS_H_
#define KERN_ppc32_REGUTILS_H_
 
#define MSR_PR (1 << 14)
 
#endif
 
/** @}
*/
/branches/dynload/boot/generic/string.c
39,9 → 39,9
 
/** Return number of characters in a string.
*
* @param str NULL terminated string.
* @param str NULL terminated string.
*
* @return Number of characters in str.
* @return Number of characters in str.
*/
size_t strlen(const char *str)
{
53,16 → 53,17
return i;
}
 
/** Compare two NULL terminated strings
/** Compare two NULL terminated strings.
*
* Do a char-by-char comparison of two NULL terminated strings.
* The strings are considered equal iff they consist of the same
* characters on the minimum of their lengths.
*
* @param src First string to compare.
* @param dst Second string to compare.
* @param src First string to compare.
* @param dst Second string to compare.
*
* @return 0 if the strings are equal, -1 if first is smaller, 1 if second smaller.
* @return 0 if the strings are equal, -1 if first is smaller,
* 1 if second smaller.
*
*/
int strcmp(const char *src, const char *dst)
81,7 → 82,7
}
 
 
/** Compare two NULL terminated strings
/** Compare two NULL terminated strings.
*
* Do a char-by-char comparison of two NULL terminated strings.
* The strings are considered equal iff they consist of the same
88,11 → 89,12
* characters on the minimum of their lengths and specified maximal
* length.
*
* @param src First string to compare.
* @param dst Second string to compare.
* @param len Maximal length for comparison.
* @param src First string to compare.
* @param dst Second string to compare.
* @param len Maximal length for comparison.
*
* @return 0 if the strings are equal, -1 if first is smaller, 1 if second smaller.
* @return 0 if the strings are equal, -1 if first is smaller,
* 1 if second smaller.
*
*/
int strncmp(const char *src, const char *dst, size_t len)
118,9 → 120,9
* If 'src' is shorter than 'len', '\0' is inserted behind the
* last copied character.
*
* @param src Source string.
* @param dest Destination buffer.
* @param len Size of destination buffer.
* @param src Source string.
* @param dest Destination buffer.
* @param len Size of destination buffer.
*/
void strncpy(char *dest, const char *src, size_t len)
{
132,13 → 134,13
dest[i-1] = '\0';
}
 
/** Convert ascii representation to unative_t
/** Convert ascii representation to unative_t.
*
* Supports 0x for hexa & 0 for octal notation.
* Does not check for overflows, does not support negative numbers
*
* @param text Textual representation of number
* @return Converted number or 0 if no valid number ofund
* @param text Textual representation of number.
* @return Converted number or 0 if no valid number found.
*/
unative_t atoi(const char *text)
{
152,9 → 154,9
base = 8;
 
while (*text) {
if (base != 16 && \
((*text >= 'A' && *text <= 'F' )
|| (*text >='a' && *text <='f')))
if (base != 16 &&
((*text >= 'A' && *text <= 'F') ||
(*text >='a' && *text <='f')))
break;
if (base == 8 && *text >='8')
break;
176,5 → 178,28
return result;
}
 
/** Move piece of memory to another, possibly overlapping, location.
*
* @param dst Destination address.
* @param src Source address.
* @param len Number of bytes to move.
*
* @return Destination address.
*/
void *memmove(void *dst, const void *src, size_t len)
{
char *d = dst;
const char *s = src;
if (s < d) {
while (len--)
*(d + len) = *(s + len);
} else {
while (len--)
*d++ = *s++;
}
return dst;
}
 
/** @}
*/
/branches/dynload/boot/generic/string.h
42,6 → 42,7
extern int strncmp(const char *src, const char *dst, size_t len);
extern void strncpy(char *dest, const char *src, size_t len);
extern unative_t atoi(const char *text);
extern void *memmove(void *dst, const void *src, size_t len);
 
#endif