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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | |
| 2 | #include |
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| 3 | #include |
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| 4 | #include |
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| 5 | #include |
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| 6 | #include |
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| 7 | #include |
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| 8 | #include |
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| 9 | #include |
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| 10 | |||
| 11 | |||
| 12 | { |
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| 13 | char banner[8]; |
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| 14 | int version; |
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| 15 | int start; |
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| 16 | int iend; |
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| 17 | int memsize; |
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| 18 | int stacktop; |
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| 19 | char *cmdline; |
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| 20 | char *path; |
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| 21 | int reserved; |
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| 22 | void *__idata_start; |
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| 23 | void *__idata_end; |
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| 24 | int (*main)(int argc, char **argv, char **envp); |
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| 25 | }; |
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| 26 | |||
| 27 | |||
| 5190 | serge | 28 | void init_loader(void *libc_image); |
| 29 | void init_reent(); |
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| 30 | |||
| 4349 | Serge | 31 | |
| 5190 | serge | 32 | void* get_entry_point(void *raw); |
| 4349 | Serge | 33 | int (*entry)(int, char **, char **); |
| 34 | |||
| 35 | |||
| 5190 | serge | 36 | int __appenv_size; |
| 37 | |||
| 4349 | Serge | 38 | |
| 5190 | serge | 39 | |
| 4349 | Serge | 40 | |
| 41 | __thread_startup (int (*entry)(void*), void *param, |
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| 42 | void *stacklow, void *stackhigh) |
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| 43 | { |
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| 44 | int retval; |
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| 45 | |||
| 46 | |||
| 5190 | serge | 47 | |
| 4349 | Serge | 48 | |
| 49 | "movl %0, %%fs:8 \n\t" // use TLS |
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| 50 | "movl %1, %%fs:12 \n\t" |
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| 51 | ::"r"(stacklow), "r"(stackhigh)); |
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| 52 | |||
| 53 | |||
| 54 | |||
| 55 | |||
| 56 | |||
| 57 | |||
| 58 | }; |
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| 59 | |||
| 60 | |||
| 61 | { |
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| 62 | return NULL; |
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| 63 | } |
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| 64 | |||
| 65 | |||
| 5190 | serge | 66 | { |
| 67 | enum quote_state |
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| 68 | { |
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| 69 | QUOTE_NONE, /* no " active in current parm */ |
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| 70 | QUOTE_DELIMITER, /* " was first char and must be last */ |
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| 71 | QUOTE_STARTED /* " was seen, look for a match */ |
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| 72 | }; |
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| 73 | |||
| 4349 | Serge | 74 | |
| 5190 | serge | 75 | unsigned int argc; |
| 76 | char *p = cmdline; |
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| 77 | char *new_arg, *start; |
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| 78 | |||
| 4349 | Serge | 79 | |
| 5190 | serge | 80 | |
| 4349 | Serge | 81 | |
| 5190 | serge | 82 | { |
| 83 | /* skip over spaces and tabs */ |
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| 84 | if ( *p ) |
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| 85 | { |
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| 86 | while (*p == ' ' || *p == '\t') |
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| 87 | ++p; |
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| 88 | } |
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| 89 | |||
| 4349 | Serge | 90 | |
| 5190 | serge | 91 | break; |
| 92 | |||
| 93 | |||
| 94 | if( *p == '\"' ) |
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| 95 | { |
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| 96 | p++; |
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| 97 | state = QUOTE_DELIMITER; |
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| 98 | } |
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| 99 | new_arg = start = p; |
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| 100 | for (;;) |
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| 101 | { |
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| 102 | if( *p == '\"' ) |
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| 103 | { |
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| 104 | p++; |
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| 105 | if( state == QUOTE_NONE ) |
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| 106 | { |
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| 107 | state = QUOTE_STARTED; |
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| 108 | } |
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| 109 | else |
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| 110 | { |
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| 111 | state = QUOTE_NONE; |
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| 112 | } |
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| 113 | continue; |
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| 114 | } |
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| 115 | |||
| 116 | |||
| 117 | { |
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| 118 | if( state == QUOTE_NONE ) |
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| 119 | { |
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| 120 | break; |
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| 121 | } |
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| 122 | } |
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| 123 | |||
| 124 | |||
| 125 | break; |
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| 126 | |||
| 127 | |||
| 128 | { |
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| 129 | if( p[1] == '\"' ) |
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| 130 | { |
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| 131 | ++p; |
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| 132 | if( p[-2] == '\\' ) |
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| 133 | { |
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| 134 | continue; |
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| 135 | } |
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| 136 | } |
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| 137 | } |
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| 138 | if( argv ) |
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| 139 | { |
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| 140 | *(new_arg++) = *p; |
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| 141 | } |
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| 142 | ++p; |
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| 143 | }; |
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| 144 | |||
| 145 | |||
| 146 | { |
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| 147 | argv[ argc ] = start; |
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| 148 | ++argc; |
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| 149 | |||
| 150 | |||
| 151 | The *new = '\0' is req'd in case there was a \" to " |
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| 152 | translation. It must be after the *p check against |
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| 153 | '\0' because new and p could point to the same char |
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| 154 | in which case the scan would be terminated too soon. |
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| 155 | */ |
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| 156 | |||
| 157 | |||
| 158 | { |
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| 159 | *new_arg = '\0'; |
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| 160 | break; |
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| 161 | } |
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| 162 | *new_arg = '\0'; |
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| 163 | ++p; |
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| 164 | } |
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| 165 | else |
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| 166 | { |
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| 167 | ++argc; |
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| 168 | if( *p == '\0' ) |
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| 169 | { |
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| 170 | break; |
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| 171 | } |
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| 172 | ++p; |
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| 173 | } |
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| 174 | } |
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| 175 | |||
| 176 | |||
| 177 | }; |
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| 178 | |||
| 179 | |||
| 4349 | Serge | 180 | libc_crt_startup (void *libc_base) |
| 181 | { |
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| 182 | struct app_hdr *header = NULL; |
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| 183 | int retval = 0; |
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| 5190 | serge | 184 | |
| 4349 | Serge | 185 | |
| 5190 | serge | 186 | int argc; |
| 187 | |||
| 4349 | Serge | 188 | |
| 189 | |||
| 190 | |||
| 191 | _tls_map[0] = 0xE0; |
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| 192 | init_reent(); |
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| 193 | init_stdio(); |
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| 4921 | Serge | 194 | |
| 4349 | Serge | 195 | |
| 196 | |||
| 197 | |||
| 198 | |||
| 199 | |||
| 200 | goto done; |
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| 201 | |||
| 202 | |||
| 203 | { |
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| 204 | argc = split_cmdline(header->cmdline, NULL) + 1; |
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| 5190 | serge | 205 | argv = alloca((argc+1)*sizeof(char*)); |
| 206 | argv[0] = header->path; |
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| 207 | |||
| 208 | |||
| 209 | } |
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| 4349 | Serge | 210 | else |
| 5190 | serge | 211 | { |
| 212 | argc = 1; |
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| 213 | argv = alloca((argc+1)*sizeof(char*)); |
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| 214 | argv[0] = header->path; |
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| 215 | } |
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| 216 | argv[argc] = NULL; |
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| 217 | |||
| 4349 | Serge | 218 | |
| 5190 | serge | 219 | done: |
| 4349 | Serge | 220 | exit (retval); |
| 221 | } |
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| 222 |