diff options
Diffstat (limited to 'lib/stdlib')
| -rw-r--r-- | lib/stdlib/abort.c | 40 | ||||
| -rw-r--r-- | lib/stdlib/assert.c | 47 | ||||
| -rw-r--r-- | lib/stdlib/mem.c | 121 | ||||
| -rw-r--r-- | lib/stdlib/printf.c | 62 | ||||
| -rw-r--r-- | lib/stdlib/putchar.c | 48 | ||||
| -rw-r--r-- | lib/stdlib/puts.c | 55 | ||||
| -rw-r--r-- | lib/stdlib/std.c | 43 | ||||
| -rw-r--r-- | lib/stdlib/strchr.c | 52 | ||||
| -rw-r--r-- | lib/stdlib/strcmp.c | 51 | ||||
| -rw-r--r-- | lib/stdlib/strlen.c | 44 | ||||
| -rw-r--r-- | lib/stdlib/strncmp.c | 52 | ||||
| -rw-r--r-- | lib/stdlib/subr_prf.c | 552 |
12 files changed, 1167 insertions, 0 deletions
diff --git a/lib/stdlib/abort.c b/lib/stdlib/abort.c new file mode 100644 index 0000000..1b06132 --- /dev/null +++ b/lib/stdlib/abort.c @@ -0,0 +1,40 @@ +/* + * Copyright (c) 2013-2014, ARM Limited and Contributors. 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 ARM 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 HOLDER 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. + */ + +#include <stdio.h> + +/* + * This is a basic implementation. This could be improved. + */ +void abort (void) +{ + serial_puts("ABORT\n\r"); + while (1) ; +} diff --git a/lib/stdlib/assert.c b/lib/stdlib/assert.c new file mode 100644 index 0000000..0a5ae43 --- /dev/null +++ b/lib/stdlib/assert.c @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2013-2014, ARM Limited and Contributors. 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 ARM 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 HOLDER 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. + */ + +#include <stdio.h> + +/* + * This is a basic implementation. This could be improved. + */ +void __assert (const char *function, const char *file, unsigned int line, + const char *assertion) +{ + serial_puts("ASSERT: "); + serial_puts(function); + serial_puts(" <"); + serial_put_dec(line); + serial_puts("> : "); + serial_puts(assertion); + serial_puts("\n\r"); + while (1) ; +} diff --git a/lib/stdlib/mem.c b/lib/stdlib/mem.c new file mode 100644 index 0000000..f1f335a --- /dev/null +++ b/lib/stdlib/mem.c @@ -0,0 +1,121 @@ +/* + * Copyright (c) 2013-2014, ARM Limited and Contributors. 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 ARM 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 HOLDER 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. + */ + +#include <stddef.h> /* size_t */ + +/* + * Fill @count bytes of memory pointed to by @dst with @val + */ +void *memset(void *dst, int val, size_t count) +{ + char *ptr = dst; + + while (count--) + *ptr++ = val; + + return dst; +} + +/* + * Compare @len bytes of @s1 and @s2 + */ +int memcmp(const void *s1, const void *s2, size_t len) +{ + const char *s = s1; + const char *d = s2; + char dc; + char sc; + + while (len--) { + sc = *s++; + dc = *d++; + if (sc - dc) + return (sc - dc); + } + + return 0; +} + +/* + * Copy @len bytes from @src to @dst + */ +void *memcpy(void *dst, const void *src, size_t len) +{ + const char *s = src; + char *d = dst; + + while (len--) + *d++ = *s++; + + return dst; +} + +/* + * Move @len bytes from @src to @dst + */ +void *memmove(void *dst, const void *src, size_t len) +{ + /* + * The following test makes use of unsigned arithmetic overflow to + * more efficiently test the condition !(src <= dst && dst < str+len). + * It also avoids the situation where the more explicit test would give + * incorrect results were the calculation str+len to overflow (though + * that issue is probably moot as such usage is probably undefined + * behaviour and a bug anyway. + */ + if ((size_t)dst - (size_t)src >= len) { + /* destination not in source data, so can safely use memcpy */ + return memcpy(dst, src, len); + } else { + /* copy backwards... */ + const char *end = dst; + const char *s = (const char *)src + len; + char *d = (char *)dst + len; + while (d != end) + *--d = *--s; + } + return dst; +} + +/* + * Scan @len bytes of @src for value @c + */ +void *memchr(const void *src, int c, size_t len) +{ + const char *s = src; + + while (len--) { + if (*s == c) + return (void *) s; + s++; + } + + return NULL; +} diff --git a/lib/stdlib/printf.c b/lib/stdlib/printf.c new file mode 100644 index 0000000..d339668 --- /dev/null +++ b/lib/stdlib/printf.c @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2013-2014, ARM Limited and Contributors. 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 ARM 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 HOLDER 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. + */ + +#include <stdio.h> +#include <stdarg.h> + +#ifdef ENABLE_PRINTF +/* Choose max of 128 chars for now. */ +#define PRINT_BUFFER_SIZE 128 +int printf(const char *fmt, ...) +{ + va_list args; + char buf[PRINT_BUFFER_SIZE]; + int count; + + va_start(args, fmt); + vsnprintf(buf, sizeof(buf) - 1, fmt, args); + va_end(args); + + /* Use putchar directly as 'puts()' adds a newline. */ + buf[PRINT_BUFFER_SIZE - 1] = '\0'; + count = 0; + while (buf[count]) + { + if (putchar(buf[count]) != EOF) { + count++; + } else { + count = EOF; + break; + } + } + + return count; +} +#endif
\ No newline at end of file diff --git a/lib/stdlib/putchar.c b/lib/stdlib/putchar.c new file mode 100644 index 0000000..81375bb --- /dev/null +++ b/lib/stdlib/putchar.c @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2013-2014, ARM Limited and Contributors. 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 ARM 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 HOLDER 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. + */ + +#include <stdio.h> +#include <serial.h> + +/* Putchar() should either return the character printed or EOF in case of error. + * Our current console_putc() function assumes success and returns the + * character. Write all other printing functions in terms of putchar(), if + * possible, so they all benefit when this is improved. + */ +int putchar(int c) +{ + int res; + if (serial_putc((unsigned char)c) >= 0) + res = c; + else + res = EOF; + + return res; +} diff --git a/lib/stdlib/puts.c b/lib/stdlib/puts.c new file mode 100644 index 0000000..542902e --- /dev/null +++ b/lib/stdlib/puts.c @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2013-2014, ARM Limited and Contributors. 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 ARM 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 HOLDER 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. + */ + +#include <stdio.h> + +int puts(const char *s) +{ + int count = 0; + while (*s) + { + if (putchar(*s++) != EOF) { + count++; + } else { + count = EOF; + break; + } + } + + /* According to the puts(3) manpage, the function should write a + * trailing newline. + */ + if ((count != EOF) && (putchar('\n') != EOF)) + count++; + else + count = EOF; + + return count; +} diff --git a/lib/stdlib/std.c b/lib/stdlib/std.c new file mode 100644 index 0000000..4608754 --- /dev/null +++ b/lib/stdlib/std.c @@ -0,0 +1,43 @@ +/* + * Copyright (c) 2013-2014, ARM Limited and Contributors. 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 ARM 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 HOLDER 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. + */ + + +/* Include the various implemented functions */ +#include "abort.c" +#include "assert.c" +#include "mem.c" +#include "printf.c" +#include "putchar.c" +#include "puts.c" +#include "strchr.c" +#include "strcmp.c" +#include "strlen.c" +#include "strncmp.c" +#include "subr_prf.c" diff --git a/lib/stdlib/strchr.c b/lib/stdlib/strchr.c new file mode 100644 index 0000000..4247dcd --- /dev/null +++ b/lib/stdlib/strchr.c @@ -0,0 +1,52 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. + */ + +/* + * Portions copyright (c) 2013-2014, ARM Limited and Contributors. + * All rights reserved. + */ + +#include <sys/cdefs.h> +#include <stddef.h> +#include <string.h> + +char * +strchr(const char *p, int ch) +{ + char c; + + c = ch; + for (;; ++p) { + if (*p == c) + return ((char *)p); + if (*p == '\0') + return (NULL); + } + /* NOTREACHED */ +} diff --git a/lib/stdlib/strcmp.c b/lib/stdlib/strcmp.c new file mode 100644 index 0000000..1d26f2b --- /dev/null +++ b/lib/stdlib/strcmp.c @@ -0,0 +1,51 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Chris Torek. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. + */ + +/* + * Portions copyright (c) 2014, ARM Limited and Contributors. + * All rights reserved. + */ + +#include <sys/cdefs.h> +#include <string.h> + +/* + * Compare strings. + */ +int +strcmp(const char *s1, const char *s2) +{ + while (*s1 == *s2++) + if (*s1++ == '\0') + return 0; + return *(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1); +} diff --git a/lib/stdlib/strlen.c b/lib/stdlib/strlen.c new file mode 100644 index 0000000..23c3d39 --- /dev/null +++ b/lib/stdlib/strlen.c @@ -0,0 +1,44 @@ +/*- + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. + */ + +/* + * Portions copyright (c) 2009-2014, ARM Limited and Contributors. All rights reserved. + */ + +#include <stddef.h> + +size_t +strlen(str) + const char *str; +{ + register const char *s; + + for (s = str; *s; ++s); + return(s - str); +} diff --git a/lib/stdlib/strncmp.c b/lib/stdlib/strncmp.c new file mode 100644 index 0000000..f45f4a2 --- /dev/null +++ b/lib/stdlib/strncmp.c @@ -0,0 +1,52 @@ +/* + * Copyright (c) 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. + */ + +/* + * Portions copyright (c) 2014, ARM Limited and Contributors. + * All rights reserved. + */ + +#include <sys/cdefs.h> +#include <string.h> + +int +strncmp(const char *s1, const char *s2, size_t n) +{ + + if (n == 0) + return 0; + do { + if (*s1 != *s2++) + return (*(const unsigned char *)s1 - + *(const unsigned char *)(s2 - 1)); + if (*s1++ == '\0') + break; + } while (--n != 0); + return 0; +} diff --git a/lib/stdlib/subr_prf.c b/lib/stdlib/subr_prf.c new file mode 100644 index 0000000..97d6fad --- /dev/null +++ b/lib/stdlib/subr_prf.c @@ -0,0 +1,552 @@ +/*- + * Copyright (c) 1986, 1988, 1991, 1993 + * The Regents of the University of California. All rights reserved. + * (c) UNIX System Laboratories, Inc. + * All or some portions of this file are derived from material licensed + * to the University of California by American Telephone and Telegraph + * Co. or Unix System Laboratories, Inc. and are reproduced herein with + * the permission of UNIX System Laboratories, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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. + * 4. Neither the name of the University 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 REGENTS 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 REGENTS 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. + * + * @(#)subr_prf.c 8.3 (Berkeley) 1/21/94 + */ + +/* + * Portions copyright (c) 2009-2014, ARM Limited and Contributors. + * All rights reserved. + */ + +#include <stdio.h> +#include <stdint.h> +#include <stdarg.h> +#include <stddef.h> +#include <string.h> +#include <ctype.h> + +typedef unsigned char u_char; +typedef unsigned int u_int; +typedef int64_t quad_t; +typedef uint64_t u_quad_t; +typedef unsigned long u_long; +typedef unsigned short u_short; + +static inline int imax(int a, int b) { return (a > b ? a : b); } + +/* + * Note that stdarg.h and the ANSI style va_start macro is used for both + * ANSI and traditional C compilers. + */ + +#define TOCONS 0x01 +#define TOTTY 0x02 +#define TOLOG 0x04 + +/* Max number conversion buffer length: a u_quad_t in base 2, plus NUL byte. */ +#define MAXNBUF (sizeof(intmax_t) * 8 + 1) + +struct putchar_arg { + int flags; + int pri; + struct tty *tty; + char *p_bufr; + size_t n_bufr; + char *p_next; + size_t remain; +}; + +struct snprintf_arg { + char *str; + size_t remain; +}; + +extern int log_open; + +#ifdef ENABLE_PRINTF + +static char *ksprintn(char *nbuf, uintmax_t num, int base, int *len, int upper); +static void snprintf_func(int ch, void *arg); +static int kvprintf(char const *fmt, void (*func)(int, void*), void *arg, int radix, va_list ap); + +int vsnprintf(char *str, size_t size, const char *format, va_list ap); + +static char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz"; +#define hex2ascii(hex) (hex2ascii_data[hex]) + +/* + * Scaled down version of sprintf(3). + */ +int +sprintf(char *buf, const char *cfmt, ...) +{ + int retval; + va_list ap; + + va_start(ap, cfmt); + retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap); + buf[retval] = '\0'; + va_end(ap); + return (retval); +} + +/* + * Scaled down version of vsprintf(3). + */ +int +vsprintf(char *buf, const char *cfmt, va_list ap) +{ + int retval; + + retval = kvprintf(cfmt, NULL, (void *)buf, 10, ap); + buf[retval] = '\0'; + return (retval); +} + +/* + * Scaled down version of snprintf(3). + */ +int +snprintf(char *str, size_t size, const char *format, ...) +{ + int retval; + va_list ap; + + va_start(ap, format); + retval = vsnprintf(str, size, format, ap); + va_end(ap); + return(retval); +} + +/* + * Scaled down version of vsnprintf(3). + */ +int +vsnprintf(char *str, size_t size, const char *format, va_list ap) +{ + struct snprintf_arg info; + int retval; + + info.str = str; + info.remain = size; + retval = kvprintf(format, snprintf_func, &info, 10, ap); + if (info.remain >= 1) + *info.str++ = '\0'; + return (retval); +} + +static void +snprintf_func(int ch, void *arg) +{ + struct snprintf_arg *const info = arg; + + if (info->remain >= 2) { + *info->str++ = ch; + info->remain--; + } +} + + +/* + * Kernel version which takes radix argument vsnprintf(3). + */ +int +vsnrprintf(char *str, size_t size, int radix, const char *format, va_list ap) +{ + struct snprintf_arg info; + int retval; + + info.str = str; + info.remain = size; + retval = kvprintf(format, snprintf_func, &info, radix, ap); + if (info.remain >= 1) + *info.str++ = '\0'; + return (retval); +} + + +/* + * Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse + * order; return an optional length and a pointer to the last character + * written in the buffer (i.e., the first character of the string). + * The buffer pointed to by `nbuf' must have length >= MAXNBUF. + */ +static char * +ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper) +{ + char *p, c; + + p = nbuf; + *p = '\0'; + do { + c = hex2ascii(num % base); + *++p = upper ? toupper(c) : c; + } while (num /= base); + if (lenp) + *lenp = p - nbuf; + return (p); +} + +/* + * Scaled down version of printf(3). + * + * Two additional formats: + * + * The format %b is supported to decode error registers. + * Its usage is: + * + * printf("reg=%b\n", regval, "<base><arg>*"); + * + * where <base> is the output base expressed as a control character, e.g. + * \10 gives octal; \20 gives hex. Each arg is a sequence of characters, + * the first of which gives the bit number to be inspected (origin 1), and + * the next characters (up to a control character, i.e. a character <= 32), + * give the name of the register. Thus: + * + * kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n"); + * + * would produce output: + * + * reg=3<BITTWO,BITONE> + * + * XXX: %D -- Hexdump, takes pointer and separator string: + * ("%6D", ptr, ":") -> XX:XX:XX:XX:XX:XX + * ("%*D", len, ptr, " " -> XX XX XX XX ... + */ +int +kvprintf(char const *fmt, void (*func)(int, void*), void *arg, int radix, va_list ap) +{ +#define PCHAR(c) {int cc=(c); if (func) (*func)(cc,arg); else *d++ = cc; retval++; } + char nbuf[MAXNBUF]; + char *d; + const char *p, *percent, *q; + u_char *up; + int ch, n; + uintmax_t num; + int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot; + int cflag, hflag, jflag, tflag, zflag; + int dwidth, upper; + char padc; + int stop = 0, retval = 0; + + num = 0; + if (!func) + d = (char *) arg; + else + d = NULL; + + if (fmt == NULL) + fmt = "(fmt null)\n"; + + if (radix < 2 || radix > 36) + radix = 10; + + for (;;) { + padc = ' '; + width = 0; + while ((ch = (u_char)*fmt++) != '%' || stop) { + if (ch == '\0') + return (retval); + PCHAR(ch); + } + percent = fmt - 1; + qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0; + sign = 0; dot = 0; dwidth = 0; upper = 0; + cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0; +reswitch: switch (ch = (u_char)*fmt++) { + case '.': + dot = 1; + goto reswitch; + case '#': + sharpflag = 1; + goto reswitch; + case '+': + sign = 1; + goto reswitch; + case '-': + ladjust = 1; + goto reswitch; + case '%': + PCHAR(ch); + break; + case '*': + if (!dot) { + width = va_arg(ap, int); + if (width < 0) { + ladjust = !ladjust; + width = -width; + } + } else { + dwidth = va_arg(ap, int); + } + goto reswitch; + case '0': + if (!dot) { + padc = '0'; + goto reswitch; + } + case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': + for (n = 0;; ++fmt) { + n = n * 10 + ch - '0'; + ch = *fmt; + if (ch < '0' || ch > '9') + break; + } + if (dot) + dwidth = n; + else + width = n; + goto reswitch; + case 'b': + num = (u_int)va_arg(ap, int); + p = va_arg(ap, char *); + for (q = ksprintn(nbuf, num, *p++, NULL, 0); *q;) + PCHAR(*q--); + + if (num == 0) + break; + + for (tmp = 0; *p;) { + n = *p++; + if (num & (1 << (n - 1))) { + PCHAR(tmp ? ',' : '<'); + for (; (n = *p) > ' '; ++p) + PCHAR(n); + tmp = 1; + } else + for (; *p > ' '; ++p) + continue; + } + if (tmp) + PCHAR('>'); + break; + case 'c': + PCHAR(va_arg(ap, int)); + break; + case 'D': + up = va_arg(ap, u_char *); + p = va_arg(ap, char *); + if (!width) + width = 16; + while (width--) { + PCHAR(hex2ascii(*up >> 4)); + PCHAR(hex2ascii(*up & 0x0f)); + up++; + if (width) + for (q=p;*q;q++) + PCHAR(*q); + } + break; + case 'd': + case 'i': + base = 10; + sign = 1; + goto handle_sign; + case 'h': + if (hflag) { + hflag = 0; + cflag = 1; + } else + hflag = 1; + goto reswitch; + case 'j': + jflag = 1; + goto reswitch; + case 'l': + if (lflag) { + lflag = 0; + qflag = 1; + } else + lflag = 1; + goto reswitch; + case 'n': + if (jflag) + *(va_arg(ap, intmax_t *)) = retval; + else if (qflag) + *(va_arg(ap, quad_t *)) = retval; + else if (lflag) + *(va_arg(ap, long *)) = retval; + else if (zflag) + *(va_arg(ap, size_t *)) = retval; + else if (hflag) + *(va_arg(ap, short *)) = retval; + else if (cflag) + *(va_arg(ap, char *)) = retval; + else + *(va_arg(ap, int *)) = retval; + break; + case 'o': + base = 8; + goto handle_nosign; + case 'p': + base = 16; + sharpflag = (width == 0); + sign = 0; + num = (uintptr_t)va_arg(ap, void *); + goto number; + case 'q': + qflag = 1; + goto reswitch; + case 'r': + base = radix; + if (sign) + goto handle_sign; + goto handle_nosign; + case 's': + p = va_arg(ap, char *); + if (p == NULL) + p = "(null)"; + if (!dot) + n = strlen (p); + else + for (n = 0; n < dwidth && p[n]; n++) + continue; + + width -= n; + + if (!ladjust && width > 0) + while (width--) + PCHAR(padc); + while (n--) + PCHAR(*p++); + if (ladjust && width > 0) + while (width--) + PCHAR(padc); + break; + case 't': + tflag = 1; + goto reswitch; + case 'u': + base = 10; + goto handle_nosign; + case 'X': + upper = 1; + case 'x': + base = 16; + goto handle_nosign; + case 'y': + base = 16; + sign = 1; + goto handle_sign; + case 'z': + zflag = 1; + goto reswitch; +handle_nosign: + sign = 0; + if (jflag) + num = va_arg(ap, uintmax_t); + else if (qflag) + num = va_arg(ap, u_quad_t); + else if (tflag) + num = va_arg(ap, ptrdiff_t); + else if (lflag) + num = va_arg(ap, u_long); + else if (zflag) + num = va_arg(ap, size_t); + else if (hflag) + num = (u_short)va_arg(ap, int); + else if (cflag) + num = (u_char)va_arg(ap, int); + else + num = va_arg(ap, u_int); + goto number; +handle_sign: + if (jflag) + num = va_arg(ap, intmax_t); + else if (qflag) + num = va_arg(ap, quad_t); + else if (tflag) + num = va_arg(ap, ptrdiff_t); + else if (lflag) + num = va_arg(ap, long); + else if (zflag) + num = va_arg(ap, ssize_t); + else if (hflag) + num = (short)va_arg(ap, int); + else if (cflag) + num = (char)va_arg(ap, int); + else + num = va_arg(ap, int); +number: + if (sign && (intmax_t)num < 0) { + neg = 1; + num = -(intmax_t)num; + } + p = ksprintn(nbuf, num, base, &n, upper); + tmp = 0; + if (sharpflag && num != 0) { + if (base == 8) + tmp++; + else if (base == 16) + tmp += 2; + } + if (neg) + tmp++; + + if (!ladjust && padc == '0') + dwidth = width - tmp; + width -= tmp + imax(dwidth, n); + dwidth -= n; + if (!ladjust) + while (width-- > 0) + PCHAR(' '); + if (neg) + PCHAR('-'); + if (sharpflag && num != 0) { + if (base == 8) { + PCHAR('0'); + } else if (base == 16) { + PCHAR('0'); + PCHAR('x'); + } + } + while (dwidth-- > 0) + PCHAR('0'); + + while (*p) + PCHAR(*p--); + + if (ladjust) + while (width-- > 0) + PCHAR(' '); + + break; + default: + while (percent < fmt) + PCHAR(*percent++); + /* + * Since we ignore an formatting argument it is no + * longer safe to obey the remaining formatting + * arguments as the arguments will no longer match + * the format specs. + */ + stop = 1; + break; + } + } +#undef PCHAR +} + +#endif
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