X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=lib%2Fvsprintf.c;h=24167a135c020b9629181bb01c369e762d293d80;hb=d9f2bd4096e6d63cb4fb62a32dd4e7d200c22b42;hp=e38a4b70f8897bc33847dd67d3abb96c318996df;hpb=bfcc40bb09b05c90cc3b1496abb270eb8aa72134;p=oweals%2Fu-boot.git diff --git a/lib/vsprintf.c b/lib/vsprintf.c index e38a4b70f8..24167a135c 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -15,149 +15,22 @@ #include #include #include -#include #include -#if !defined (CONFIG_PANIC_HANG) -#include -#endif #include -# define NUM_TYPE long long #define noinline __attribute__((noinline)) -/* some reluctance to put this into a new limits.h, so it is here */ -#define INT_MAX ((int)(~0U>>1)) - -const char hex_asc[] = "0123456789abcdef"; -#define hex_asc_lo(x) hex_asc[((x) & 0x0f)] -#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] - -static inline char *pack_hex_byte(char *buf, u8 byte) -{ - *buf++ = hex_asc_hi(byte); - *buf++ = hex_asc_lo(byte); - return buf; -} - -unsigned long simple_strtoul(const char *cp,char **endp,unsigned int base) -{ - unsigned long result = 0,value; - - if (*cp == '0') { - cp++; - if ((*cp == 'x') && isxdigit(cp[1])) { - base = 16; - cp++; - } - if (!base) { - base = 8; - } - } - if (!base) { - base = 10; - } - while (isxdigit(*cp) && (value = isdigit(*cp) ? *cp-'0' : (islower(*cp) - ? toupper(*cp) : *cp)-'A'+10) < base) { - result = result*base + value; - cp++; - } - if (endp) - *endp = (char *)cp; - return result; -} - -int strict_strtoul(const char *cp, unsigned int base, unsigned long *res) -{ - char *tail; - unsigned long val; - size_t len; - - *res = 0; - len = strlen(cp); - if (len == 0) - return -EINVAL; - - val = simple_strtoul(cp, &tail, base); - if (tail == cp) - return -EINVAL; - - if ((*tail == '\0') || - ((len == (size_t)(tail - cp) + 1) && (*tail == '\n'))) { - *res = val; - return 0; - } - - return -EINVAL; -} - -long simple_strtol(const char *cp,char **endp,unsigned int base) -{ - if(*cp=='-') - return -simple_strtoul(cp+1,endp,base); - return simple_strtoul(cp,endp,base); -} - -int ustrtoul(const char *cp, char **endp, unsigned int base) -{ - unsigned long result = simple_strtoul(cp, endp, base); - switch (**endp) { - case 'G' : - result *= 1024; - /* fall through */ - case 'M': - result *= 1024; - /* fall through */ - case 'K': - case 'k': - result *= 1024; - if ((*endp)[1] == 'i') { - if ((*endp)[2] == 'B') - (*endp) += 3; - else - (*endp) += 2; - } - } - return result; -} - -unsigned long long simple_strtoull (const char *cp, char **endp, unsigned int base) -{ - unsigned long long result = 0, value; - - if (*cp == '0') { - cp++; - if ((*cp == 'x') && isxdigit (cp[1])) { - base = 16; - cp++; - } - if (!base) { - base = 8; - } - } - if (!base) { - base = 10; - } - while (isxdigit (*cp) && (value = isdigit (*cp) - ? *cp - '0' - : (islower (*cp) ? toupper (*cp) : *cp) - 'A' + 10) < base) { - result = result * base + value; - cp++; - } - if (endp) - *endp = (char *) cp; - return result; -} - /* we use this so that we can do without the ctype library */ #define is_digit(c) ((c) >= '0' && (c) <= '9') static int skip_atoi(const char **s) { - int i=0; + int i = 0; while (is_digit(**s)) - i = i*10 + *((*s)++) - '0'; + i = i * 10 + *((*s)++) - '0'; + return i; } @@ -171,7 +44,7 @@ static int skip_atoi(const char **s) /* Formats correctly any integer in [0,99999]. * Outputs from one to five digits depending on input. * On i386 gcc 4.1.2 -O2: ~250 bytes of code. */ -static char* put_dec_trunc(char *buf, unsigned q) +static char *put_dec_trunc(char *buf, unsigned q) { unsigned d3, d2, d1, d0; d1 = (q>>4) & 0xf; @@ -200,14 +73,14 @@ static char* put_dec_trunc(char *buf, unsigned q) d3 = d3 - 10*q; *buf++ = d3 + '0'; /* next digit */ if (q != 0) - *buf++ = q + '0'; /* most sign. digit */ + *buf++ = q + '0'; /* most sign. digit */ } } } return buf; } /* Same with if's removed. Always emits five digits */ -static char* put_dec_full(char *buf, unsigned q) +static char *put_dec_full(char *buf, unsigned q) { /* BTW, if q is in [0,9999], 8-bit ints will be enough, */ /* but anyway, gcc produces better code with full-sized ints */ @@ -249,7 +122,7 @@ static char* put_dec_full(char *buf, unsigned q) return buf; } /* No inlining helps gcc to use registers better */ -static noinline char* put_dec(char *buf, unsigned NUM_TYPE num) +static noinline char *put_dec(char *buf, uint64_t num) { while (1) { unsigned rem; @@ -282,11 +155,11 @@ static noinline char* put_dec(char *buf, unsigned NUM_TYPE num) #define ADDCH(str, ch) (*(str)++ = (ch)) #endif -static char *number(char *buf, char *end, unsigned NUM_TYPE num, +static char *number(char *buf, char *end, u64 num, int base, int size, int precision, int type) { /* we are called with base 8, 10 or 16, only, thus don't need "G..." */ - static const char digits[16] = "0123456789ABCDEF"; /* "GHIJKLMNOPQRSTUVWXYZ"; */ + static const char digits[16] = "0123456789ABCDEF"; char tmp[66]; char sign; @@ -301,9 +174,9 @@ static char *number(char *buf, char *end, unsigned NUM_TYPE num, type &= ~ZEROPAD; sign = 0; if (type & SIGN) { - if ((signed NUM_TYPE) num < 0) { + if ((s64) num < 0) { sign = '-'; - num = - (signed NUM_TYPE) num; + num = -(s64) num; size--; } else if (type & PLUS) { sign = '+'; @@ -331,9 +204,13 @@ static char *number(char *buf, char *end, unsigned NUM_TYPE num, else if (base != 10) { /* 8 or 16 */ int mask = base - 1; int shift = 3; - if (base == 16) shift = 4; + + if (base == 16) + shift = 4; + do { - tmp[i++] = (digits[((unsigned char)num) & mask] | locase); + tmp[i++] = (digits[((unsigned char)num) & mask] + | locase); num >>= shift; } while (num); } else { /* base 10 */ @@ -382,7 +259,7 @@ static char *string(char *buf, char *end, char *s, int field_width, { int len, i; - if (s == 0) + if (s == NULL) s = ""; len = strnlen(s, precision); @@ -398,10 +275,22 @@ static char *string(char *buf, char *end, char *s, int field_width, } #ifdef CONFIG_CMD_NET +static const char hex_asc[] = "0123456789abcdef"; +#define hex_asc_lo(x) hex_asc[((x) & 0x0f)] +#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] + +static inline char *pack_hex_byte(char *buf, u8 byte) +{ + *buf++ = hex_asc_hi(byte); + *buf++ = hex_asc_lo(byte); + return buf; +} + static char *mac_address_string(char *buf, char *end, u8 *addr, int field_width, int precision, int flags) { - char mac_addr[6 * 3]; /* (6 * 2 hex digits), 5 colons and trailing zero */ + /* (6 * 2 hex digits), 5 colons and trailing zero */ + char mac_addr[6 * 3]; char *p = mac_addr; int i; @@ -419,7 +308,8 @@ static char *mac_address_string(char *buf, char *end, u8 *addr, int field_width, static char *ip6_addr_string(char *buf, char *end, u8 *addr, int field_width, int precision, int flags) { - char ip6_addr[8 * 5]; /* (8 * 4 hex digits), 7 colons and trailing zero */ + /* (8 * 4 hex digits), 7 colons and trailing zero */ + char ip6_addr[8 * 5]; char *p = ip6_addr; int i; @@ -438,7 +328,8 @@ static char *ip6_addr_string(char *buf, char *end, u8 *addr, int field_width, static char *ip4_addr_string(char *buf, char *end, u8 *addr, int field_width, int precision, int flags) { - char ip4_addr[4 * 4]; /* (4 * 3 decimal digits), 3 dots and trailing zero */ + /* (4 * 3 decimal digits), 3 dots and trailing zero */ + char ip4_addr[4 * 4]; char temp[3]; /* hold each IP quad in reverse order */ char *p = ip4_addr; int i, digits; @@ -479,12 +370,31 @@ static char *ip4_addr_string(char *buf, char *end, u8 *addr, int field_width, static char *pointer(const char *fmt, char *buf, char *end, void *ptr, int field_width, int precision, int flags) { + u64 num = (uintptr_t)ptr; + + /* + * Being a boot loader, we explicitly allow pointers to + * (physical) address null. + */ +#if 0 if (!ptr) return string(buf, end, "(null)", field_width, precision, flags); +#endif #ifdef CONFIG_CMD_NET switch (*fmt) { + case 'a': + flags |= SPECIAL | ZEROPAD; + + switch (fmt[1]) { + case 'p': + default: + field_width = sizeof(phys_addr_t) * 2 + 2; + num = *(phys_addr_t *)ptr; + break; + } + break; case 'm': flags |= SPECIAL; /* Fallthrough */ @@ -510,14 +420,13 @@ static char *pointer(const char *fmt, char *buf, char *end, void *ptr, field_width = 2*sizeof(void *); flags |= ZEROPAD; } - return number(buf, end, (unsigned long)ptr, 16, field_width, - precision, flags); + return number(buf, end, num, 16, field_width, precision, flags); } static int vsnprintf_internal(char *buf, size_t size, const char *fmt, va_list args) { - unsigned NUM_TYPE num; + u64 num; int base; char *str; @@ -549,14 +458,24 @@ static int vsnprintf_internal(char *buf, size_t size, const char *fmt, /* process flags */ flags = 0; - repeat: +repeat: ++fmt; /* this also skips first '%' */ switch (*fmt) { - case '-': flags |= LEFT; goto repeat; - case '+': flags |= PLUS; goto repeat; - case ' ': flags |= SPACE; goto repeat; - case '#': flags |= SPECIAL; goto repeat; - case '0': flags |= ZEROPAD; goto repeat; + case '-': + flags |= LEFT; + goto repeat; + case '+': + flags |= PLUS; + goto repeat; + case ' ': + flags |= SPACE; + goto repeat; + case '#': + flags |= SPECIAL; + goto repeat; + case '0': + flags |= ZEROPAD; + goto repeat; } /* get field width */ @@ -620,7 +539,7 @@ static int vsnprintf_internal(char *buf, size_t size, const char *fmt, continue; case 'p': - str = pointer(fmt+1, str, end, + str = pointer(fmt + 1, str, end, va_arg(args, void *), field_width, precision, flags); /* Skip all alphanumeric pointer suffixes */ @@ -630,10 +549,10 @@ static int vsnprintf_internal(char *buf, size_t size, const char *fmt, case 'n': if (qualifier == 'l') { - long * ip = va_arg(args, long *); + long *ip = va_arg(args, long *); *ip = (str - buf); } else { - int * ip = va_arg(args, int *); + int *ip = va_arg(args, int *); *ip = (str - buf); } continue; @@ -695,12 +614,13 @@ static int vsnprintf_internal(char *buf, size_t size, const char *fmt, ADDCH(str, '\0'); if (str > end) end[-1] = '\0'; + --str; } #else *str = '\0'; #endif /* the trailing null byte doesn't count towards the total */ - return str-buf; + return str - buf; } #ifdef CONFIG_SYS_VSNPRINTF @@ -766,34 +686,54 @@ int vsprintf(char *buf, const char *fmt, va_list args) return vsnprintf_internal(buf, INT_MAX, fmt, args); } -int sprintf(char * buf, const char *fmt, ...) +int sprintf(char *buf, const char *fmt, ...) { va_list args; int i; va_start(args, fmt); - i=vsprintf(buf,fmt,args); + i = vsprintf(buf, fmt, args); va_end(args); return i; } -void panic(const char *fmt, ...) +int printf(const char *fmt, ...) { - va_list args; + va_list args; + uint i; + char printbuffer[CONFIG_SYS_PBSIZE]; + va_start(args, fmt); - vprintf(fmt, args); - putc('\n'); + + /* + * For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); va_end(args); -#if defined (CONFIG_PANIC_HANG) - hang(); -#else - udelay (100000); /* allow messages to go out */ - do_reset (NULL, 0, 0, NULL); -#endif - while (1) - ; + + /* Print the string */ + puts(printbuffer); + return i; } +int vprintf(const char *fmt, va_list args) +{ + uint i; + char printbuffer[CONFIG_SYS_PBSIZE]; + + /* + * For this to work, printbuffer must be larger than + * anything we ever want to print. + */ + i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args); + + /* Print the string */ + puts(printbuffer); + return i; +} + + void __assert_fail(const char *assertion, const char *file, unsigned line, const char *function) { @@ -815,3 +755,35 @@ char *simple_itoa(ulong i) } while (i > 0); return p + 1; } + +/* We don't seem to have %'d in U-Boot */ +void print_grouped_ull(unsigned long long int_val, int digits) +{ + char str[21], *s; + int grab = 3; + + digits = (digits + 2) / 3; + sprintf(str, "%*llu", digits * 3, int_val); + for (s = str; *s; s += grab) { + if (s != str) + putc(s[-1] != ' ' ? ',' : ' '); + printf("%.*s", grab, s); + grab = 3; + } +} + +bool str2off(const char *p, loff_t *num) +{ + char *endptr; + + *num = simple_strtoull(p, &endptr, 16); + return *p != '\0' && *endptr == '\0'; +} + +bool str2long(const char *p, ulong *num) +{ + char *endptr; + + *num = simple_strtoul(p, &endptr, 16); + return *p != '\0' && *endptr == '\0'; +}