[1] | 1 | /* |
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| 2 | This file is part of MutekP. |
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| 3 | |
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| 4 | MutekP is free software; you can redistribute it and/or modify it |
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| 5 | under the terms of the GNU General Public License as published by |
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| 6 | the Free Software Foundation; either version 2 of the License, or |
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| 7 | (at your option) any later version. |
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| 8 | |
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| 9 | MutekP is distributed in the hope that it will be useful, but |
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| 10 | WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | General Public License for more details. |
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| 13 | |
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| 14 | You should have received a copy of the GNU General Public License |
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| 15 | along with MutekP; if not, write to the Free Software Foundation, |
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| 16 | Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 17 | |
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| 18 | UPMC / LIP6 / SOC (c) 2007 |
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| 19 | */ |
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| 20 | |
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| 21 | /* |
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| 22 | revision 1.2.2 2011/07/12 11:08:34 Ghassan |
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| 23 | - Split main loop into 3 noinline functions: compute_dec32, compute_dec64, compute_hex |
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| 24 | - Use bigger buffer size |
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| 25 | - Reuse buffer treatment |
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| 26 | - Add 64 bits support |
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| 27 | - Add char count; |
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| 28 | |
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| 29 | revision 1.2.1 2007/11/11 18:54:23 Ghassan |
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| 30 | rename iprintf to __iprintk, it's a copy of iprintf called on system level. |
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| 31 | |
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| 32 | stdio of the ghost of libc |
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| 33 | Developped by Denis Hommais and Frédéric Pétrot |
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| 34 | $Log: iprintf.c,v $ |
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| 35 | Revision 1.2 2003/07/01 13:40:46 fred |
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| 36 | Supports the %u and doesnt core anymore on an unrecognized char |
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| 37 | following a % |
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| 38 | |
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| 39 | Revision 1.1.1.1 2002/02/28 12:58:56 disydent |
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| 40 | Creation of Disydent CVS Tree |
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| 41 | |
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| 42 | Revision 1.1 2001/11/22 15:07:36 fred |
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| 43 | Adding the iprintf function that does the formatting, and removes all |
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| 44 | the old stuff hanging around. |
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| 45 | |
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| 46 | $Id: iprintf.c,v 1.2 2003/07/01 13:40:46 fred Exp $ |
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| 47 | Made up this file to centralize the printf behavior |
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| 48 | */ |
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| 49 | |
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| 50 | #include <remote_access.h> |
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| 51 | #include <stdarg.h> |
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| 52 | #include <types.h> |
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| 53 | #include <libk.h> |
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| 54 | |
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| 55 | /* Handling of the printf internals |
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| 56 | * Addr is either the buffer or the tty addrs |
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| 57 | * inc is 0 for a tty and 1 for a buffer |
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| 58 | * Other arguments are self explanatory |
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| 59 | */ |
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| 60 | |
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| 61 | #define SIZE_OF_BUF 20 |
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| 62 | |
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| 63 | char* __attribute__((noinline)) compute_dec64(char **addr, |
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| 64 | uint_t cid, |
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| 65 | char *buf, |
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| 66 | uint_t *len, |
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| 67 | int inc, |
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| 68 | uint64_t val, |
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| 69 | bool_t isSigned) |
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| 70 | { |
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| 71 | register int64_t sval; |
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| 72 | register uint32_t uval; |
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| 73 | register char *tmp; |
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| 74 | register uint_t count; |
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| 75 | register uint_t i; |
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| 76 | |
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| 77 | if(isSigned == true) |
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| 78 | { |
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| 79 | sval = val; |
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| 80 | if(sval < 0) |
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| 81 | { |
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| 82 | sval = -sval; |
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| 83 | val = sval; |
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| 84 | remote_sb((void*)*addr, cid, '-'); |
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| 85 | *len = *len + 1; |
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| 86 | (*addr) += inc; |
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| 87 | } |
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| 88 | } |
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| 89 | |
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| 90 | count = 0; |
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| 91 | i = 0; |
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| 92 | tmp = buf + SIZE_OF_BUF; |
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| 93 | *--tmp = '\0'; |
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| 94 | |
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| 95 | while(val >= 1000000000UL) |
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| 96 | { |
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| 97 | val -= 1000000000UL; |
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| 98 | count ++; |
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| 99 | } |
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| 100 | |
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| 101 | uval = (uint32_t) val; |
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| 102 | |
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| 103 | do |
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| 104 | { |
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| 105 | *--tmp = (uval % 10) + '0'; |
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| 106 | uval /= 10; |
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| 107 | i++; |
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| 108 | }while((uval) || (i < 9)); |
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| 109 | |
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| 110 | uval = count; |
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| 111 | |
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| 112 | do |
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| 113 | { |
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| 114 | *--tmp = (uval % 10) + '0'; |
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| 115 | uval /= 10; |
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| 116 | }while(uval); |
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| 117 | |
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| 118 | return tmp; |
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| 119 | } |
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| 120 | |
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| 121 | static char* __attribute__((noinline)) compute_dec(char **addr, |
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| 122 | uint_t cid, |
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| 123 | char *buf, |
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| 124 | uint_t *len, |
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| 125 | int inc, |
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| 126 | uint_t val, |
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| 127 | bool_t isSigned) |
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| 128 | { |
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| 129 | register sint_t sval; |
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| 130 | register char *tmp; |
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| 131 | |
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| 132 | if(isSigned == true) |
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| 133 | { |
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| 134 | sval = val; |
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| 135 | if(sval < 0) |
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| 136 | { |
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| 137 | sval = -sval; |
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| 138 | val = sval; |
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| 139 | remote_sb(*addr, cid, '-'); |
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| 140 | *len = *len + 1; |
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| 141 | (*addr) += inc; |
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| 142 | } |
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| 143 | } |
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| 144 | |
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| 145 | tmp = buf + SIZE_OF_BUF; |
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| 146 | *--tmp = '\0'; |
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| 147 | |
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| 148 | do |
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| 149 | { |
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| 150 | *--tmp = (val % 10) + '0'; |
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| 151 | val /= 10; |
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| 152 | }while (val); |
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| 153 | |
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| 154 | return tmp; |
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| 155 | } |
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| 156 | |
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| 157 | static char* __attribute__((noinline)) compute_hex(char **addr, |
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| 158 | uint_t cid, |
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| 159 | char *buf, |
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| 160 | uint_t val, |
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| 161 | bool_t isPointer) |
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| 162 | { |
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| 163 | register char *tmp; |
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| 164 | register char *xdigit; |
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| 165 | register uint_t i; |
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| 166 | |
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| 167 | i = 0; |
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| 168 | xdigit = "0123456789abcdef"; |
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| 169 | tmp = buf + SIZE_OF_BUF; |
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| 170 | *--tmp = '\0'; |
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| 171 | |
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| 172 | do |
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| 173 | { |
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| 174 | *--tmp = xdigit[val & 15]; |
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| 175 | val = val >> 4; |
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| 176 | i++; |
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| 177 | }while (val); |
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| 178 | |
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| 179 | if(isPointer) |
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| 180 | { |
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| 181 | while (i < 8) |
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| 182 | { |
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| 183 | *--tmp = xdigit[0]; |
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| 184 | i++; |
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| 185 | } |
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| 186 | } |
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| 187 | |
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| 188 | return tmp; |
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| 189 | } |
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| 190 | |
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| 191 | int iprintk (char *addr, uint_t cid, int inc, const char *fmt, va_list ap) |
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| 192 | { |
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| 193 | char *tmp; |
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| 194 | sint_t val; |
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| 195 | uint_t uval; |
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| 196 | uint64_t val64; |
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| 197 | uint_t count = 0; |
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| 198 | char buf[SIZE_OF_BUF]; |
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| 199 | |
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| 200 | while (*fmt) |
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| 201 | { |
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| 202 | while ((*fmt != '%') && (*fmt)) |
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| 203 | { |
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| 204 | remote_sb(addr, cid, *fmt++); |
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| 205 | addr += inc; |
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| 206 | count++; |
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| 207 | } |
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| 208 | if (*fmt) |
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| 209 | { |
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| 210 | fmt++; |
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| 211 | switch (*fmt) |
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| 212 | { |
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| 213 | case '%': |
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| 214 | remote_sb(addr, cid, '%'); |
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| 215 | addr += inc; |
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| 216 | count++; |
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| 217 | goto next; |
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| 218 | case 'c': |
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| 219 | remote_sb(addr, cid, va_arg (ap, uint_t)); |
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| 220 | addr += inc; |
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| 221 | count++; |
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| 222 | goto next; |
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| 223 | case 'd': |
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| 224 | val = va_arg (ap, sint_t); |
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| 225 | tmp = compute_dec(&addr, cid, &buf[0], &count, inc, val, true); |
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| 226 | break; |
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| 227 | case 'u': |
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| 228 | uval = va_arg (ap, uint_t); |
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| 229 | tmp = compute_dec(&addr, cid, &buf[0], &count, inc, uval, false); |
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| 230 | break; |
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| 231 | case 'D': |
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| 232 | val64 = va_arg (ap, int64_t); |
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| 233 | tmp = compute_dec64(&addr, cid, &buf[0], &count, inc, val64, true); |
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| 234 | break; |
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| 235 | case 'U': |
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| 236 | val64 = va_arg (ap, uint64_t); |
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| 237 | tmp = compute_dec64(&addr, cid, &buf[0], &count, inc, val64, false); |
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| 238 | break; |
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| 239 | case 's': |
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| 240 | tmp = va_arg (ap, char *); |
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| 241 | if (!tmp) |
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| 242 | tmp = "empty str"; |
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| 243 | break; |
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| 244 | case 'p': |
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| 245 | case 'x': |
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| 246 | uval = va_arg (ap, uint_t); |
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| 247 | tmp = compute_hex(&addr, cid, &buf[0], uval, (*fmt == 'p') ? true : false); |
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| 248 | break; |
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| 249 | default: |
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| 250 | remote_sb(addr, cid, *fmt); |
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| 251 | count++; |
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| 252 | goto next; |
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| 253 | } |
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| 254 | while (*tmp) |
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| 255 | { |
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| 256 | remote_sb(addr, cid, *tmp++); |
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| 257 | addr += inc; |
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| 258 | count++; |
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| 259 | } |
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| 260 | next: |
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| 261 | fmt++; |
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| 262 | } |
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| 263 | } |
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| 264 | va_end (ap); |
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| 265 | return count; |
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| 266 | } |
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