3 * Architecture Independent System Init
9 extern int Modules_LoadBuiltins();
10 extern int PCI_Install();
11 extern void DMA_Install();
14 void System_Init(char *ArgString);
15 void System_ParseCommandLine(char *ArgString);
16 void System_ParseVFS(char *Arg);
17 void System_ParseSetting(char *Arg);
18 void System_ExecuteScript();
19 int System_Int_GetString(char *Str, char **Dest);
22 char *gsInitPath = "/Acess/Bin/init";
23 char *gsConfigScript = "/Acess/Conf/BootConf.cfg";
26 void System_Init(char *ArgString)
28 // - Start Builtin Drivers & Filesystems
31 Modules_LoadBuiltins();
33 // - Parse Kernel's Command Line
34 System_ParseCommandLine(ArgString);
36 // - Execute the Config Script
37 Log("Executing config script...");
38 System_ExecuteScript();
42 * \fn void System_ParseCommandLine(char *ArgString)
43 * \brief Parses the kernel's command line and sets the environment
45 void System_ParseCommandLine(char *ArgString)
52 Log("Kernel Command Line: \"%s\"", ArgString);
54 // --- Get Arguments ---
56 for( argc = 0; argc < 32; argc++ )
58 while(*str == ' ') str++; // Eat Whitespace
59 if(*str == '\0') { argc--; break;} // End of string
61 while(*str && *str != ' ')
64 while(*str && !(*str == '"' && str[-1] != '\\'))
69 if(*str == '\0') break; // End of string
70 *str = '\0'; // Cap off argument string
71 str ++; // and increment the string pointer
74 argc ++; // Count last argument
76 // --- Parse Arguments ---
77 for( i = 1; i < argc; i++ )
79 if( argv[i][0] == '/' )
80 System_ParseVFS( argv[i] );
82 System_ParseSetting( argv[i] );
87 * \fn void System_ParseVFS(char *Arg)
89 void System_ParseVFS(char *Arg)
95 // Search for the '=' token
96 while( *value && *value != '=' )
99 // Check if the equals was found
100 if( *value == '\0' ) {
101 Warning("Expected '=' in the string '%s'", Arg);
106 *value = '\0'; value ++;
108 // Check assignment type
109 // - Symbolic Link <link>=<destination>
112 Log("Symbolic link '%s' pointing to '%s'", Arg, value);
113 VFS_Symlink(Arg, value);
115 // - Mount <mountpoint>=<fs>:<device>
120 while(*dev && *dev != ':') dev++;
126 if( (fd = VFS_Open(Arg, 0)) == -1 ) {
127 Log("Creating directory '%s'", Arg, value);
133 Log("Mounting '%s' to '%s' ('%s')", dev, Arg, value);
134 VFS_Mount(dev, Arg, value, "");
139 * \fn void System_ParseSetting(char *Arg)
141 void System_ParseSetting(char *Arg)
146 // Search for the '=' token
147 while( *value && *value != '=' )
150 // Check for boolean/flag (no '=')
153 if(strcmp(Arg, "") == 0) {
155 Warning("Kernel flag '%s' is not recognised", Arg);
160 *value = '\0'; // Remove '='
161 value ++; // and eat it's position
163 if(strcmp(Arg, "SCRIPT") == 0) {
164 Log("Config Script: '%s'", value);
165 gsConfigScript = value;
167 Warning("Kernel config setting '%s' is not recognised", Arg);
174 * \fn void System_ExecuteScript()
176 void System_ExecuteScript()
180 int i = 0, lineStart;
181 char *sArg1, *sArg2, *sArg3;
185 fp = VFS_Open(gsConfigScript, VFS_OPENFLAG_READ);
187 Warning("[CFG] Passed script '%s' does not exist", gsConfigScript);
191 // Read into memory buffer
192 VFS_Seek(fp, 0, SEEK_END);
194 VFS_Seek(fp, 0, SEEK_SET);
195 fData = malloc(fLen+1);
196 VFS_Read(fp, fLen, fData);
203 sArg1 = sArg2 = sArg3 = NULL;
206 // Clear leading whitespace and find empty lines
207 while(i < fLen && (fData[i] == ' ' || fData[i]=='\t')) i ++;
209 if(fData[i] == '\n') {
215 if(fData[i] == ';' || fData[i] == '#') {
216 while(i < fLen && fData[i] != '\n') i ++;
223 if(strncmp("mount ", fData+i, 6) == 0) {
225 i += System_Int_GetString(fData+i, &sArg1);
226 if(!sArg1) goto read2eol;
227 i += System_Int_GetString(fData+i, &sArg2);
228 if(!sArg2) goto read2eol;
229 i += System_Int_GetString(fData+i, &sArg3);
230 if(!sArg3) goto read2eol;
231 //Log("[CFG ] Mount '%s' to '%s' (%s)\n", sArg1, sArg2, sArg3);
232 VFS_Mount(sArg1, sArg2, sArg3, "");
235 else if(strncmp("module ", fData+i, 6) == 0) {
237 i += System_Int_GetString(fData+i, &sArg1);
238 if(!sArg1) goto read2eol;
239 //Log("[CFG ] Load Module '%s'\n", sArg1);
240 Module_LoadFile(sArg1, ""); //!\todo Use the rest of the line as the argument string
243 else if(strncmp("edimod ", fData+i, 6) == 0) {
245 i += System_Int_GetString(fData+i, &sArg1);
246 if(!sArg1) goto read2eol;
247 Log("[CFG ] Load EDI Module '%s'\n", sArg1);
248 Module_LoadFile(sArg1, "");
251 else if(strncmp("symlink ", fData+i, 7) == 0) {
253 i += System_Int_GetString(fData+i, &sArg1);
254 if(!sArg1) goto read2eol;
255 i += System_Int_GetString(fData+i, &sArg2);
256 if(!sArg2) goto read2eol;
257 Log("[CFG ] Symlink '%s' pointing to '%s'\n", sArg1, sArg2);
258 VFS_Symlink(sArg1, sArg2);
261 else if(strncmp("mkdir ", fData+i, 5) == 0) {
263 i += System_Int_GetString(fData+i, &sArg1);
264 if(!sArg1) goto read2eol;
265 Log("[CFG ] New Directory '%s'\n", sArg1);
269 else if(strncmp("spawn ", fData+i, 5) == 0) {
271 i += System_Int_GetString(fData+i, &sArg1);
272 if(!sArg1) goto read2eol;
273 Log("[CFG ] Starting '%s' as a new task\n", sArg1);
277 Warning("Unknown configuration command, Line: '%s'", fData+i);
281 if(sArg1) free(sArg1);
282 if(sArg2) free(sArg2);
283 if(sArg3) free(sArg3);
285 while(i < fLen && fData[i] != '\n') i++;
292 * \fn int System_Int_GetString(char *Str, char **Dest)
293 * \brief Gets a string from another
295 * \param Str Input String
296 * \param Dest Pointer to output pointer
297 * \return Characters eaten from input
299 int System_Int_GetString(char *Str, char **Dest)
305 //LogF("GetString: (Str='%s', Dest=0x%x)\n", Str, Dest);
307 while(Str[pos] == ' ' || Str[pos] == '\t') pos++;
308 if(Str[pos] == '\n' || Str[pos] == '\0') {
318 while(Str[pos] != '"') pos++;
321 *Dest = malloc( len + 1 );
322 memcpy( *Dest, Str+start, len );
325 //LogF("GetString: RETURN *Dest = '%s'\n", *Dest);
331 // Non-Quoted String - Whitespace deliminated
333 while(Str[pos] != ' ' && Str[pos] != '\t' && Str[pos] != '\n') pos++;
336 //LogF(" GetString: len = %i\n", len);
337 *Dest = malloc( len + 1 );
338 memcpy( *Dest, Str+start, len );
341 //LogF("GetString: RETURN *Dest = '%s'\n", *Dest);