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001 /* Copyright (C) 2005 David Decotigny 001 /* Copyright (C) 2005 David Decotigny 002 Copyright (C) 2003 Thomas Petazzoni 002 Copyright (C) 2003 Thomas Petazzoni 003 003 004 This program is free software; you can redi 004 This program is free software; you can redistribute it and/or 005 modify it under the terms of the GNU Genera 005 modify it under the terms of the GNU General Public License 006 as published by the Free Software Foundatio 006 as published by the Free Software Foundation; either version 2 007 of the License, or (at your option) any lat 007 of the License, or (at your option) any later version. 008 008 009 This program is distributed in the hope tha 009 This program is distributed in the hope that it will be useful, 010 but WITHOUT ANY WARRANTY; without even the 010 but WITHOUT ANY WARRANTY; without even the implied warranty of 011 MERCHANTABILITY or FITNESS FOR A PARTICULAR 011 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 012 GNU General Public License for more details 012 GNU General Public License for more details. 013 013 014 You should have received a copy of the GNU 014 You should have received a copy of the GNU General Public License 015 along with this program; if not, write to t 015 along with this program; if not, write to the Free Software 016 Foundation, Inc., 59 Temple Place - Suite 3 016 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 017 USA. 017 USA. 018 */ 018 */ 019 019 020 020 021 /** 021 /** 022 * @file crt.c 022 * @file crt.c 023 * 023 * 024 * The C RunTime environment for the basic sup 024 * The C RunTime environment for the basic support of SOS C user 025 * programs 025 * programs 026 */ 026 */ 027 027 028 #include <hwcore/swintr.h> 028 #include <hwcore/swintr.h> 029 #include <string.h> 029 #include <string.h> 030 #include "crt.h" 030 #include "crt.h" 031 031 032 /** 032 /** 033 * Starter function ! 033 * Starter function ! 034 */ 034 */ 035 void _start(void) __attribute__((noreturn)); !! 035 void _start() __attribute__((noreturn)); 036 void _start(void) !! 036 void _start() 037 { 037 { 038 /* This starter function expects a main() fu 038 /* This starter function expects a main() function somewhere */ 039 extern int main(void); !! 039 extern int main(); 040 040 041 /* Reset the bss section */ 041 /* Reset the bss section */ 042 extern char _bbss, _ebss; 042 extern char _bbss, _ebss; 043 memset(& _bbss, 0x0, (& _ebss) - (& _bbss)); 043 memset(& _bbss, 0x0, (& _ebss) - (& _bbss)); 044 044 045 _sos_exit(main()); 045 _sos_exit(main()); 046 } 046 } 047 047 048 048 049 /* 049 /* 050 * By convention, the USER SOS programs always 050 * By convention, the USER SOS programs always pass 4 arguments to the 051 * kernel syscall handler: in eax/../edx. For 051 * kernel syscall handler: in eax/../edx. For less arguments, the 052 * unused registers are filled with 0s. For mo 052 * unused registers are filled with 0s. For more arguments, the 4th 053 * syscall parameter gives the address of the 053 * syscall parameter gives the address of the array containing the 054 * remaining arguments. In any case, eax corre 054 * remaining arguments. In any case, eax corresponds to the syscall 055 * IDentifier. 055 * IDentifier. 056 */ 056 */ 057 057 058 058 059 inline 059 inline 060 int _sos_syscall3(int id, 060 int _sos_syscall3(int id, 061 unsigned int arg1, 061 unsigned int arg1, 062 unsigned int arg2, 062 unsigned int arg2, 063 unsigned int arg3) 063 unsigned int arg3) 064 { 064 { 065 int ret; 065 int ret; 066 066 067 asm volatile("movl %1,%%eax \n" 067 asm volatile("movl %1,%%eax \n" 068 "movl %2,%%ebx \n" 068 "movl %2,%%ebx \n" 069 "movl %3,%%ecx \n" 069 "movl %3,%%ecx \n" 070 "movl %4,%%edx \n" 070 "movl %4,%%edx \n" 071 "int %5\n" 071 "int %5\n" 072 "movl %%eax, %0" 072 "movl %%eax, %0" 073 :"=g"(ret) 073 :"=g"(ret) 074 :"g"(id),"g"(arg1),"g"(arg2),"g 074 :"g"(id),"g"(arg1),"g"(arg2),"g"(arg3) 075 ,"i"(SOS_SWINTR_SOS_SYSCALL) 075 ,"i"(SOS_SWINTR_SOS_SYSCALL) 076 :"eax","ebx","ecx","edx","memor 076 :"eax","ebx","ecx","edx","memory"); 077 077 078 return ret; 078 return ret; 079 } 079 } 080 080 081 081 082 int _sos_syscall0(int id) 082 int _sos_syscall0(int id) 083 { 083 { 084 return _sos_syscall3(id, 0, 0, 0); 084 return _sos_syscall3(id, 0, 0, 0); 085 } 085 } 086 086 087 087 088 int _sos_syscall1(int id, 088 int _sos_syscall1(int id, 089 unsigned int arg1) 089 unsigned int arg1) 090 { 090 { 091 return _sos_syscall3(id, arg1, 0, 0); 091 return _sos_syscall3(id, arg1, 0, 0); 092 } 092 } 093 093 094 094 095 int _sos_syscall2(int id, 095 int _sos_syscall2(int id, 096 unsigned int arg1, 096 unsigned int arg1, 097 unsigned int arg2) 097 unsigned int arg2) 098 { 098 { 099 return _sos_syscall3(id, arg1, arg2, 0); 099 return _sos_syscall3(id, arg1, arg2, 0); 100 } 100 } 101 101 102 102 103 int _sos_syscall4(int id, 103 int _sos_syscall4(int id, 104 unsigned int arg1, 104 unsigned int arg1, 105 unsigned int arg2, 105 unsigned int arg2, 106 unsigned int arg3, 106 unsigned int arg3, 107 unsigned int arg4) 107 unsigned int arg4) 108 { 108 { 109 unsigned int args[] = { arg3, arg4 }; 109 unsigned int args[] = { arg3, arg4 }; 110 return _sos_syscall3(id, arg1, arg2, (unsign 110 return _sos_syscall3(id, arg1, arg2, (unsigned)args); 111 } 111 } 112 112 113 113 114 int _sos_syscall5(int id, 114 int _sos_syscall5(int id, 115 unsigned int arg1, 115 unsigned int arg1, 116 unsigned int arg2, 116 unsigned int arg2, 117 unsigned int arg3, 117 unsigned int arg3, 118 unsigned int arg4, 118 unsigned int arg4, 119 unsigned int arg5) 119 unsigned int arg5) 120 { 120 { 121 unsigned int args[] = { arg3, arg4, arg5 }; 121 unsigned int args[] = { arg3, arg4, arg5 }; 122 return _sos_syscall3(id, arg1, arg2, (unsign 122 return _sos_syscall3(id, arg1, arg2, (unsigned)args); 123 } 123 } 124 124 125 125 126 int _sos_syscall6(int id, 126 int _sos_syscall6(int id, 127 unsigned int arg1, 127 unsigned int arg1, 128 unsigned int arg2, 128 unsigned int arg2, 129 unsigned int arg3, 129 unsigned int arg3, 130 unsigned int arg4, 130 unsigned int arg4, 131 unsigned int arg5, 131 unsigned int arg5, 132 unsigned int arg6) 132 unsigned int arg6) 133 { 133 { 134 unsigned int args[] = { arg3, arg4, arg5, ar 134 unsigned int args[] = { arg3, arg4, arg5, arg6 }; 135 return _sos_syscall3(id, arg1, arg2, (unsign 135 return _sos_syscall3(id, arg1, arg2, (unsigned)args); 136 } 136 } 137 137 138 138 139 int _sos_syscall7(int id, 139 int _sos_syscall7(int id, 140 unsigned int arg1, 140 unsigned int arg1, 141 unsigned int arg2, 141 unsigned int arg2, 142 unsigned int arg3, 142 unsigned int arg3, 143 unsigned int arg4, 143 unsigned int arg4, 144 unsigned int arg5, 144 unsigned int arg5, 145 unsigned int arg6, 145 unsigned int arg6, 146 unsigned int arg7) 146 unsigned int arg7) 147 { 147 { 148 unsigned int args[] = { arg3, arg4, arg5, ar 148 unsigned int args[] = { arg3, arg4, arg5, arg6, arg7 }; 149 return _sos_syscall3(id, arg1, arg2, (unsign 149 return _sos_syscall3(id, arg1, arg2, (unsigned)args); 150 } 150 } 151 151 152 152 153 int _sos_syscall8(int id, 153 int _sos_syscall8(int id, 154 unsigned int arg1, 154 unsigned int arg1, 155 unsigned int arg2, 155 unsigned int arg2, 156 unsigned int arg3, 156 unsigned int arg3, 157 unsigned int arg4, 157 unsigned int arg4, 158 unsigned int arg5, 158 unsigned int arg5, 159 unsigned int arg6, 159 unsigned int arg6, 160 unsigned int arg7, 160 unsigned int arg7, 161 unsigned int arg8) 161 unsigned int arg8) 162 { 162 { 163 unsigned int args[] = { arg3, arg4, arg5, ar 163 unsigned int args[] = { arg3, arg4, arg5, arg6, arg7, arg8 }; 164 return _sos_syscall3(id, arg1, arg2, (unsign 164 return _sos_syscall3(id, arg1, arg2, (unsigned)args); 165 } 165 } 166 166 167 167 168 void _sos_exit(int status) 168 void _sos_exit(int status) 169 { 169 { 170 _sos_syscall1(SOS_SYSCALL_ID_EXIT, (unsigned 170 _sos_syscall1(SOS_SYSCALL_ID_EXIT, (unsigned)status); 171 171 172 /* Never reached ! */ 172 /* Never reached ! */ 173 for ( ; ; ) 173 for ( ; ; ) 174 ; 174 ; 175 } 175 } 176 176 177 177 178 int _sos_bochs_write(const char * str, unsigne 178 int _sos_bochs_write(const char * str, unsigned length) 179 { 179 { 180 return _sos_syscall2(SOS_SYSCALL_ID_BOCHS_WR 180 return _sos_syscall2(SOS_SYSCALL_ID_BOCHS_WRITE, 181 (unsigned)str, 181 (unsigned)str, 182 length); 182 length); 183 } 183 } 184 184 185 185 186 int _sos_fork() 186 int _sos_fork() 187 { 187 { 188 return _sos_syscall0(SOS_SYSCALL_ID_FORK); 188 return _sos_syscall0(SOS_SYSCALL_ID_FORK); 189 } 189 } 190 190 191 191 192 int _sos_exec(const char * prog) 192 int _sos_exec(const char * prog) 193 { 193 { 194 return _sos_syscall2(SOS_SYSCALL_ID_EXEC, (u 194 return _sos_syscall2(SOS_SYSCALL_ID_EXEC, (unsigned int)prog, 195 (unsigned int)strlen(pr 195 (unsigned int)strlen(prog)); 196 } 196 } 197 197 198 198 199 int _sos_munmap(void * start, size_t length) 199 int _sos_munmap(void * start, size_t length) 200 { 200 { 201 return _sos_syscall2(SOS_SYSCALL_ID_MUNMAP, 201 return _sos_syscall2(SOS_SYSCALL_ID_MUNMAP, 202 (unsigned int)start, 202 (unsigned int)start, 203 length); 203 length); 204 } 204 } 205 205 206 206 207 int _sos_mprotect(const void *addr, size_t len 207 int _sos_mprotect(const void *addr, size_t len, int prot) 208 { 208 { 209 return _sos_syscall3(SOS_SYSCALL_ID_MPROTECT 209 return _sos_syscall3(SOS_SYSCALL_ID_MPROTECT, 210 (unsigned int)addr, 210 (unsigned int)addr, 211 len, 211 len, 212 (unsigned int)prot); 212 (unsigned int)prot); 213 } 213 } 214 214 215 215 216 int _sos_mresize(void * old_addr, size_t old_l 216 int _sos_mresize(void * old_addr, size_t old_len, 217 void * *new_addr, size_t new_ 217 void * *new_addr, size_t new_len, 218 unsigned long flags) 218 unsigned long flags) 219 { 219 { 220 return _sos_syscall5(SOS_SYSCALL_ID_MRESIZE, 220 return _sos_syscall5(SOS_SYSCALL_ID_MRESIZE, 221 (unsigned int)old_addr, 221 (unsigned int)old_addr, 222 old_len, 222 old_len, 223 (unsigned int)new_addr, 223 (unsigned int)new_addr, 224 new_len, 224 new_len, 225 flags); 225 flags); 226 } 226 } 227 227 228 228 229 int _sos_msync(void *start, size_t length, int << 230 { << 231 return _sos_syscall3(SOS_SYSCALL_ID_MSYNC, << 232 (unsigned int)start, << 233 length, << 234 flags); << 235 } << 236 << 237 << 238 /** 229 /** 239 * Helper function that represents the start r 230 * Helper function that represents the start routine of a new user 240 * thread created from user space (syscall new 231 * thread created from user space (syscall new_thread). It takes 2 241 * arguments that are passsed in the eax/ebx r 232 * arguments that are passsed in the eax/ebx registers (@see 242 * cpu_ustate_init() in hwcore/cpu_context.c): 233 * cpu_ustate_init() in hwcore/cpu_context.c): the start function of 243 * the new thread (eax), the argument passed t 234 * the new thread (eax), the argument passed to it (ebx). 244 */ 235 */ 245 static void thread_routine(void) !! 236 static void thread_routine() 246 { 237 { 247 /* NOTE: variables as named registers is a g 238 /* NOTE: variables as named registers is a gcc extension */ 248 register unsigned long int reg_arg1 asm("%ea 239 register unsigned long int reg_arg1 asm("%eax"); 249 register unsigned long int reg_arg2 asm("%eb 240 register unsigned long int reg_arg2 asm("%ebx"); 250 241 251 sos_thread_func_t * func = (sos_thread_func_ 242 sos_thread_func_t * func = (sos_thread_func_t*)reg_arg1; 252 unsigned long int arg = reg_arg2; 243 unsigned long int arg = reg_arg2; 253 244 254 func(arg); 245 func(arg); 255 _sos_exit(0); 246 _sos_exit(0); 256 } 247 } 257 248 258 249 259 int _sos_new_thread(sos_thread_func_t *func, 250 int _sos_new_thread(sos_thread_func_t *func, 260 void* arg, 251 void* arg, 261 size_t stack_size) 252 size_t stack_size) 262 { 253 { 263 return _sos_syscall4(SOS_SYSCALL_ID_NEW_THRE 254 return _sos_syscall4(SOS_SYSCALL_ID_NEW_THREAD, 264 (unsigned)thread_routin 255 (unsigned)thread_routine, 265 (unsigned)func, (unsign 256 (unsigned)func, (unsigned)arg, 266 stack_size); 257 stack_size); 267 } 258 } 268 259 269 260 270 int _sos_nanosleep(unsigned long int sec, 261 int _sos_nanosleep(unsigned long int sec, 271 unsigned long int nanosec) 262 unsigned long int nanosec) 272 { 263 { 273 return _sos_syscall2(SOS_SYSCALL_ID_NANOSLEE 264 return _sos_syscall2(SOS_SYSCALL_ID_NANOSLEEP, 274 sec, nanosec); 265 sec, nanosec); 275 } 266 } 276 267 277 268 278 void * _sos_brk(void * new_top_address) 269 void * _sos_brk(void * new_top_address) 279 { 270 { 280 return (void*)_sos_syscall1(SOS_SYSCALL_ID_B 271 return (void*)_sos_syscall1(SOS_SYSCALL_ID_BRK, 281 (unsigned)new_to 272 (unsigned)new_top_address); 282 } 273 } 283 274 284 275 285 int _sos_mount(const char *source, const char 276 int _sos_mount(const char *source, const char *target, 286 const char *filesystemtype, uns 277 const char *filesystemtype, unsigned long mountflags, 287 const char *args) 278 const char *args) 288 { 279 { 289 if (!target || !filesystemtype) 280 if (!target || !filesystemtype) 290 return -1; 281 return -1; 291 282 292 return _sos_syscall7(SOS_SYSCALL_ID_MOUNT, 283 return _sos_syscall7(SOS_SYSCALL_ID_MOUNT, 293 (unsigned int)source, s 284 (unsigned int)source, source?strlen(source):0, 294 (unsigned int)target, s 285 (unsigned int)target, strlen(target), 295 (unsigned int)filesyste 286 (unsigned int)filesystemtype, 296 mountflags, 287 mountflags, 297 (unsigned int)args); 288 (unsigned int)args); 298 } 289 } 299 290 300 291 301 int _sos_umount(const char *target) 292 int _sos_umount(const char *target) 302 { 293 { 303 if (!target) 294 if (!target) 304 return -1; 295 return -1; 305 296 306 return _sos_syscall2(SOS_SYSCALL_ID_UMOUNT, 297 return _sos_syscall2(SOS_SYSCALL_ID_UMOUNT, 307 (unsigned int)target, 298 (unsigned int)target, 308 strlen(target)); 299 strlen(target)); 309 } 300 } 310 301 311 302 312 void _sos_sync(void) 303 void _sos_sync(void) 313 { 304 { 314 _sos_syscall0(SOS_SYSCALL_ID_SYNC); 305 _sos_syscall0(SOS_SYSCALL_ID_SYNC); 315 } 306 } 316 307 317 308 318 int _sos_statvfs(const char *path, struct stat 309 int _sos_statvfs(const char *path, struct statvfs *buf) 319 { 310 { 320 if (! path) 311 if (! path) 321 return -1; 312 return -1; 322 313 323 return _sos_syscall3(SOS_SYSCALL_ID_VFSTAT64 314 return _sos_syscall3(SOS_SYSCALL_ID_VFSTAT64, 324 (unsigned)path, 315 (unsigned)path, 325 strlen(path), 316 strlen(path), 326 (unsigned)buf); 317 (unsigned)buf); 327 } 318 } 328 319 329 320 330 int _sos_open(const char * pathname, int flags 321 int _sos_open(const char * pathname, int flags, int mode) 331 { 322 { 332 if (! pathname) 323 if (! pathname) 333 return -1; 324 return -1; 334 325 335 return _sos_syscall4(SOS_SYSCALL_ID_OPEN, 326 return _sos_syscall4(SOS_SYSCALL_ID_OPEN, 336 (unsigned)pathname, 327 (unsigned)pathname, 337 strlen(pathname), 328 strlen(pathname), 338 flags, 329 flags, 339 mode); 330 mode); 340 } 331 } 341 332 342 333 343 int _sos_close(int fd) 334 int _sos_close(int fd) 344 { 335 { 345 return _sos_syscall1(SOS_SYSCALL_ID_CLOSE, f 336 return _sos_syscall1(SOS_SYSCALL_ID_CLOSE, fd); 346 } 337 } 347 338 348 339 349 int _sos_read(int fd, char * buf, size_t * len 340 int _sos_read(int fd, char * buf, size_t * len) 350 { 341 { 351 return _sos_syscall3(SOS_SYSCALL_ID_READ, fd 342 return _sos_syscall3(SOS_SYSCALL_ID_READ, fd, 352 (unsigned int) buf, 343 (unsigned int) buf, 353 (unsigned int) len); 344 (unsigned int) len); 354 } 345 } 355 346 356 347 357 int _sos_write(int fd, const char * buf, size_ 348 int _sos_write(int fd, const char * buf, size_t * len) 358 { 349 { 359 return _sos_syscall3(SOS_SYSCALL_ID_WRITE, f 350 return _sos_syscall3(SOS_SYSCALL_ID_WRITE, fd, 360 (unsigned int) buf, 351 (unsigned int) buf, 361 (unsigned int) len); 352 (unsigned int) len); 362 } 353 } 363 354 364 355 365 int _sos_seek64(int fd, loff_t * offset, int w 356 int _sos_seek64(int fd, loff_t * offset, int whence) 366 { 357 { 367 return _sos_syscall3(SOS_SYSCALL_ID_SEEK64, 358 return _sos_syscall3(SOS_SYSCALL_ID_SEEK64, fd, 368 (unsigned int)offset, 359 (unsigned int)offset, 369 (unsigned int)whence); 360 (unsigned int)whence); 370 } 361 } 371 362 372 363 373 int _sos_fmmap(void ** ptr_hint_addr, size_t l 364 int _sos_fmmap(void ** ptr_hint_addr, size_t len, int prot, int flags, 374 int fd, loff_t offset) 365 int fd, loff_t offset) 375 { 366 { 376 return _sos_syscall7(SOS_SYSCALL_ID_FSMMAP, 367 return _sos_syscall7(SOS_SYSCALL_ID_FSMMAP, 377 (unsigned int)ptr_hint_ 368 (unsigned int)ptr_hint_addr, len, prot, flags, 378 (unsigned int)fd, 369 (unsigned int)fd, 379 /* offs64_hi */(offset 370 /* offs64_hi */(offset >> 32), 380 /* offs64_lo */(offset 371 /* offs64_lo */(offset & 0xffffffff)); 381 } 372 } 382 373 383 374 384 int _sos_ftruncate64(int fd, loff_t length) 375 int _sos_ftruncate64(int fd, loff_t length) 385 { 376 { 386 return _sos_syscall2(SOS_SYSCALL_ID_FTRUNCAT 377 return _sos_syscall2(SOS_SYSCALL_ID_FTRUNCATE64, fd, 387 (unsigned int)length); 378 (unsigned int)length); 388 } 379 } 389 380 390 381 391 int _sos_fcntl(int fd, int cmd, int arg) 382 int _sos_fcntl(int fd, int cmd, int arg) 392 { 383 { 393 return _sos_syscall3(SOS_SYSCALL_ID_FCNTL, f 384 return _sos_syscall3(SOS_SYSCALL_ID_FCNTL, fd, 394 (unsigned int)cmd, 385 (unsigned int)cmd, 395 (unsigned int)arg); 386 (unsigned int)arg); 396 } 387 } 397 388 398 389 399 int _sos_ioctl(int fd, int cmd, int arg) 390 int _sos_ioctl(int fd, int cmd, int arg) 400 { 391 { 401 return _sos_syscall3(SOS_SYSCALL_ID_IOCTL, f 392 return _sos_syscall3(SOS_SYSCALL_ID_IOCTL, fd, 402 (unsigned int)cmd, 393 (unsigned int)cmd, 403 (unsigned int)arg); 394 (unsigned int)arg); 404 } 395 } 405 396 406 397 407 int _sos_creat(const char *pathname, int mode) 398 int _sos_creat(const char *pathname, int mode) 408 { 399 { 409 if (! pathname) 400 if (! pathname) 410 return -1; 401 return -1; 411 402 412 return _sos_syscall3(SOS_SYSCALL_ID_CREAT, 403 return _sos_syscall3(SOS_SYSCALL_ID_CREAT, 413 (unsigned int)pathname, 404 (unsigned int)pathname, 414 strlen(pathname), 405 strlen(pathname), 415 mode); 406 mode); 416 } 407 } 417 408 418 409 419 int _sos_link (const char *oldpath, const char 410 int _sos_link (const char *oldpath, const char *newpath) 420 { 411 { 421 if (!oldpath || !newpath) 412 if (!oldpath || !newpath) 422 return -1; 413 return -1; 423 414 424 return _sos_syscall4(SOS_SYSCALL_ID_LINK, 415 return _sos_syscall4(SOS_SYSCALL_ID_LINK, 425 (unsigned int)oldpath, 416 (unsigned int)oldpath, 426 strlen(oldpath), 417 strlen(oldpath), 427 (unsigned int)newpath, 418 (unsigned int)newpath, 428 strlen(newpath)); 419 strlen(newpath)); 429 } 420 } 430 421 431 422 432 int _sos_unlink(const char *pathname) 423 int _sos_unlink(const char *pathname) 433 { 424 { 434 if (! pathname) 425 if (! pathname) 435 return -1; 426 return -1; 436 427 437 return _sos_syscall2(SOS_SYSCALL_ID_UNLINK, 428 return _sos_syscall2(SOS_SYSCALL_ID_UNLINK, 438 (unsigned int)pathname, 429 (unsigned int)pathname, 439 strlen(pathname)); 430 strlen(pathname)); 440 } 431 } 441 432 442 433 443 int _sos_rename (const char *oldpath, const ch 434 int _sos_rename (const char *oldpath, const char *newpath) 444 { 435 { 445 if (!oldpath || !newpath) 436 if (!oldpath || !newpath) 446 return -1; 437 return -1; 447 438 448 return _sos_syscall4(SOS_SYSCALL_ID_RENAME, 439 return _sos_syscall4(SOS_SYSCALL_ID_RENAME, 449 (unsigned int)oldpath, 440 (unsigned int)oldpath, 450 strlen(oldpath), 441 strlen(oldpath), 451 (unsigned int)newpath, 442 (unsigned int)newpath, 452 strlen(newpath)); 443 strlen(newpath)); 453 } 444 } 454 445 455 446 456 int _sos_symlink(const char *target, const cha 447 int _sos_symlink(const char *target, const char *path) 457 { 448 { 458 if (!path || !target) 449 if (!path || !target) 459 return -1; 450 return -1; 460 451 461 return _sos_syscall4(SOS_SYSCALL_ID_SYMLINK, 452 return _sos_syscall4(SOS_SYSCALL_ID_SYMLINK, 462 (unsigned int)path, 453 (unsigned int)path, 463 strlen(path), 454 strlen(path), 464 (unsigned int)target, 455 (unsigned int)target, 465 strlen(target)); 456 strlen(target)); 466 } 457 } 467 458 468 459 469 int _sos_mknod(const char *pathname, mode_t mo 460 int _sos_mknod(const char *pathname, mode_t mode, 470 int type, 461 int type, 471 unsigned int major, unsigned mi 462 unsigned int major, unsigned minor) 472 { 463 { 473 if (!pathname) 464 if (!pathname) 474 return -1; 465 return -1; 475 466 476 return _sos_syscall6(SOS_SYSCALL_ID_MKNOD, 467 return _sos_syscall6(SOS_SYSCALL_ID_MKNOD, 477 (unsigned int)pathname, 468 (unsigned int)pathname, 478 strlen(pathname), 469 strlen(pathname), 479 type, mode, major, mino 470 type, mode, major, minor); 480 } 471 } 481 472 482 473 483 struct dirent; /* Forward declaration */ 474 struct dirent; /* Forward declaration */ 484 int _sos_readdir(int fd, struct dirent * diren 475 int _sos_readdir(int fd, struct dirent * dirent) 485 { 476 { 486 return _sos_syscall2(SOS_SYSCALL_ID_READDIR, 477 return _sos_syscall2(SOS_SYSCALL_ID_READDIR, 487 fd, 478 fd, 488 (unsigned int)dirent); 479 (unsigned int)dirent); 489 } 480 } 490 481 491 482 492 int _sos_mkdir(const char *pathname, mode_t mo 483 int _sos_mkdir(const char *pathname, mode_t mode) 493 { 484 { 494 if (!pathname) 485 if (!pathname) 495 return -1; 486 return -1; 496 487 497 return _sos_syscall3(SOS_SYSCALL_ID_MKDIR, 488 return _sos_syscall3(SOS_SYSCALL_ID_MKDIR, 498 (unsigned int)pathname, 489 (unsigned int)pathname, 499 strlen(pathname), 490 strlen(pathname), 500 mode); 491 mode); 501 } 492 } 502 493 503 494 504 int _sos_rmdir(const char *pathname) 495 int _sos_rmdir(const char *pathname) 505 { 496 { 506 if (!pathname) 497 if (!pathname) 507 return -1; 498 return -1; 508 499 509 return _sos_syscall2(SOS_SYSCALL_ID_RMDIR, 500 return _sos_syscall2(SOS_SYSCALL_ID_RMDIR, 510 (unsigned int)pathname, 501 (unsigned int)pathname, 511 strlen(pathname)); 502 strlen(pathname)); 512 } 503 } 513 504 514 505 515 int _sos_chmod(const char *pathname, mode_t mo 506 int _sos_chmod(const char *pathname, mode_t mode) 516 { 507 { 517 if (!pathname) 508 if (!pathname) 518 return -1; 509 return -1; 519 510 520 return _sos_syscall3(SOS_SYSCALL_ID_CHMOD, 511 return _sos_syscall3(SOS_SYSCALL_ID_CHMOD, 521 (unsigned int)pathname, 512 (unsigned int)pathname, 522 strlen(pathname), 513 strlen(pathname), 523 mode); 514 mode); 524 } 515 } 525 516 526 517 527 int _sos_stat(const char *pathname, int nofoll 518 int _sos_stat(const char *pathname, int nofollow, struct stat * st) 528 { 519 { 529 if (!pathname || !st) 520 if (!pathname || !st) 530 return -1; 521 return -1; 531 522 532 return _sos_syscall4(SOS_SYSCALL_ID_STAT64, 523 return _sos_syscall4(SOS_SYSCALL_ID_STAT64, 533 (unsigned int)pathname, 524 (unsigned int)pathname, 534 strlen(pathname), 525 strlen(pathname), 535 nofollow, 526 nofollow, 536 (unsigned int)st); 527 (unsigned int)st); 537 } 528 } 538 529 539 530 540 int _sos_chroot(const char *dirname) 531 int _sos_chroot(const char *dirname) 541 { 532 { 542 if (!dirname) 533 if (!dirname) 543 return -1; 534 return -1; 544 535 545 return _sos_syscall2(SOS_SYSCALL_ID_CHROOT, 536 return _sos_syscall2(SOS_SYSCALL_ID_CHROOT, 546 (unsigned int)dirname, 537 (unsigned int)dirname, 547 strlen(dirname)); 538 strlen(dirname)); 548 } 539 } 549 540 550 541 551 int _sos_chdir(const char *dirname) 542 int _sos_chdir(const char *dirname) 552 { 543 { 553 if (!dirname) 544 if (!dirname) 554 return -1; 545 return -1; 555 546 556 return _sos_syscall2(SOS_SYSCALL_ID_CHDIR, 547 return _sos_syscall2(SOS_SYSCALL_ID_CHDIR, 557 (unsigned int)dirname, 548 (unsigned int)dirname, 558 strlen(dirname)); 549 strlen(dirname)); 559 } 550 } 560 551 561 552 562 int _sos_fchdir(int fd) 553 int _sos_fchdir(int fd) 563 { 554 { 564 return _sos_syscall1(SOS_SYSCALL_ID_FCHDIR, 555 return _sos_syscall1(SOS_SYSCALL_ID_FCHDIR, 565 (unsigned int)fd); 556 (unsigned int)fd); 566 } 557 }
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