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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() __attribute__((noreturn)); !! 035 void _start(void) __attribute__((noreturn)); 036 void _start() !! 036 void _start(void) 037 { 037 { 038 /* This starter function expects a main() fu 038 /* This starter function expects a main() function somewhere */ 039 extern int main(); !! 039 extern int main(void); 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"); !! 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_fakemmap(void ** ptr_hint_addr, size_ << 200 const char *resource_path, l << 201 { << 202 return _sos_syscall7(SOS_SYSCALL_ID_FAKEMMAP << 203 (unsigned int)ptr_hint_ << 204 (unsigned int)resource_ << 205 /* offs64_hi */(offset << 206 /* offs64_lo */(offset << 207 } << 208 << 209 << 210 int _sos_munmap(void * start, size_t length) 199 int _sos_munmap(void * start, size_t length) 211 { 200 { 212 return _sos_syscall2(SOS_SYSCALL_ID_MUNMAP, 201 return _sos_syscall2(SOS_SYSCALL_ID_MUNMAP, 213 (unsigned int)start, 202 (unsigned int)start, 214 length); 203 length); 215 } 204 } 216 205 217 206 218 int _sos_mprotect(const void *addr, size_t len 207 int _sos_mprotect(const void *addr, size_t len, int prot) 219 { 208 { 220 return _sos_syscall3(SOS_SYSCALL_ID_MPROTECT 209 return _sos_syscall3(SOS_SYSCALL_ID_MPROTECT, 221 (unsigned int)addr, 210 (unsigned int)addr, 222 len, 211 len, 223 (unsigned int)prot); 212 (unsigned int)prot); 224 } 213 } 225 214 226 215 227 int _sos_mresize(void * old_addr, size_t old_l 216 int _sos_mresize(void * old_addr, size_t old_len, 228 void * *new_addr, size_t new_ 217 void * *new_addr, size_t new_len, 229 unsigned long flags) 218 unsigned long flags) 230 { 219 { 231 return _sos_syscall5(SOS_SYSCALL_ID_MRESIZE, 220 return _sos_syscall5(SOS_SYSCALL_ID_MRESIZE, 232 (unsigned int)old_addr, 221 (unsigned int)old_addr, 233 old_len, 222 old_len, 234 (unsigned int)new_addr, 223 (unsigned int)new_addr, 235 new_len, 224 new_len, 236 flags); 225 flags); 237 } 226 } 238 227 239 228 >> 229 int _sos_msync(void *start, size_t length, int flags) >> 230 { >> 231 return _sos_syscall3(SOS_SYSCALL_ID_MSYNC, >> 232 (unsigned int)start, >> 233 length, >> 234 flags); >> 235 } >> 236 >> 237 240 /** 238 /** 241 * Helper function that represents the start r 239 * Helper function that represents the start routine of a new user 242 * thread created from user space (syscall new 240 * thread created from user space (syscall new_thread). It takes 2 243 * arguments that are passsed in the eax/ebx r 241 * arguments that are passsed in the eax/ebx registers (@see 244 * cpu_ustate_init() in hwcore/cpu_context.c): 242 * cpu_ustate_init() in hwcore/cpu_context.c): the start function of 245 * the new thread (eax), the argument passed t 243 * the new thread (eax), the argument passed to it (ebx). 246 */ 244 */ 247 static void thread_routine() !! 245 static void thread_routine(void) 248 { 246 { 249 /* NOTE: variables as named registers is a g 247 /* NOTE: variables as named registers is a gcc extension */ 250 register unsigned long int reg_arg1 asm("%ea 248 register unsigned long int reg_arg1 asm("%eax"); 251 register unsigned long int reg_arg2 asm("%eb 249 register unsigned long int reg_arg2 asm("%ebx"); 252 250 253 sos_thread_func_t * func = (sos_thread_func_ 251 sos_thread_func_t * func = (sos_thread_func_t*)reg_arg1; 254 unsigned long int arg = reg_arg2; 252 unsigned long int arg = reg_arg2; 255 253 256 func(arg); 254 func(arg); 257 _sos_exit(0); 255 _sos_exit(0); 258 } 256 } 259 257 260 258 261 int _sos_new_thread(sos_thread_func_t *func, 259 int _sos_new_thread(sos_thread_func_t *func, 262 void* arg, 260 void* arg, 263 size_t stack_size) 261 size_t stack_size) 264 { 262 { 265 return _sos_syscall4(SOS_SYSCALL_ID_NEW_THRE 263 return _sos_syscall4(SOS_SYSCALL_ID_NEW_THREAD, 266 (unsigned)thread_routin 264 (unsigned)thread_routine, 267 (unsigned)func, (unsign 265 (unsigned)func, (unsigned)arg, 268 stack_size); 266 stack_size); 269 } 267 } 270 268 271 269 272 int _sos_nanosleep(unsigned long int sec, 270 int _sos_nanosleep(unsigned long int sec, 273 unsigned long int nanosec) 271 unsigned long int nanosec) 274 { 272 { 275 return _sos_syscall2(SOS_SYSCALL_ID_NANOSLEE 273 return _sos_syscall2(SOS_SYSCALL_ID_NANOSLEEP, 276 sec, nanosec); 274 sec, nanosec); 277 } 275 } 278 276 279 277 280 void * _sos_brk(void * new_top_address) 278 void * _sos_brk(void * new_top_address) 281 { 279 { 282 return (void*)_sos_syscall1(SOS_SYSCALL_ID_B 280 return (void*)_sos_syscall1(SOS_SYSCALL_ID_BRK, 283 (unsigned)new_to 281 (unsigned)new_top_address); 284 } 282 } 285 283 286 284 287 int _sos_mount(const char *source, const char 285 int _sos_mount(const char *source, const char *target, 288 const char *filesystemtype, uns 286 const char *filesystemtype, unsigned long mountflags, 289 const char *args) 287 const char *args) 290 { 288 { 291 if (!target || !filesystemtype) 289 if (!target || !filesystemtype) 292 return -1; 290 return -1; 293 291 294 return _sos_syscall7(SOS_SYSCALL_ID_MOUNT, 292 return _sos_syscall7(SOS_SYSCALL_ID_MOUNT, 295 (unsigned int)source, s 293 (unsigned int)source, source?strlen(source):0, 296 (unsigned int)target, s 294 (unsigned int)target, strlen(target), 297 (unsigned int)filesyste 295 (unsigned int)filesystemtype, 298 mountflags, 296 mountflags, 299 (unsigned int)args); 297 (unsigned int)args); 300 } 298 } 301 299 302 300 303 int _sos_umount(const char *target) 301 int _sos_umount(const char *target) 304 { 302 { 305 if (!target) 303 if (!target) 306 return -1; 304 return -1; 307 305 308 return _sos_syscall2(SOS_SYSCALL_ID_UMOUNT, 306 return _sos_syscall2(SOS_SYSCALL_ID_UMOUNT, 309 (unsigned int)target, 307 (unsigned int)target, 310 strlen(target)); 308 strlen(target)); 311 } 309 } 312 310 313 311 314 void _sos_sync(void) 312 void _sos_sync(void) 315 { 313 { 316 _sos_syscall0(SOS_SYSCALL_ID_SYNC); 314 _sos_syscall0(SOS_SYSCALL_ID_SYNC); 317 } 315 } 318 316 319 317 320 int _sos_statvfs(const char *path, struct stat 318 int _sos_statvfs(const char *path, struct statvfs *buf) 321 { 319 { 322 if (! path) 320 if (! path) 323 return -1; 321 return -1; 324 322 325 return _sos_syscall3(SOS_SYSCALL_ID_VFSTAT64 323 return _sos_syscall3(SOS_SYSCALL_ID_VFSTAT64, 326 (unsigned)path, 324 (unsigned)path, 327 strlen(path), 325 strlen(path), 328 (unsigned)buf); 326 (unsigned)buf); 329 } 327 } 330 328 331 329 332 int _sos_open(const char * pathname, int flags 330 int _sos_open(const char * pathname, int flags, int mode) 333 { 331 { 334 if (! pathname) 332 if (! pathname) 335 return -1; 333 return -1; 336 !! 334 337 return _sos_syscall4(SOS_SYSCALL_ID_OPEN, 335 return _sos_syscall4(SOS_SYSCALL_ID_OPEN, 338 (unsigned)pathname, 336 (unsigned)pathname, 339 strlen(pathname), 337 strlen(pathname), 340 flags, 338 flags, 341 mode); 339 mode); 342 } 340 } 343 341 344 342 345 int _sos_close(int fd) 343 int _sos_close(int fd) 346 { 344 { 347 return _sos_syscall1(SOS_SYSCALL_ID_CLOSE, f 345 return _sos_syscall1(SOS_SYSCALL_ID_CLOSE, fd); 348 } 346 } 349 347 350 348 351 int _sos_read(int fd, char * buf, size_t * len 349 int _sos_read(int fd, char * buf, size_t * len) 352 { 350 { 353 return _sos_syscall3(SOS_SYSCALL_ID_READ, fd 351 return _sos_syscall3(SOS_SYSCALL_ID_READ, fd, 354 (unsigned int) buf, 352 (unsigned int) buf, 355 (unsigned int) len); 353 (unsigned int) len); 356 } 354 } 357 355 358 356 359 int _sos_write(int fd, const char * buf, size_ 357 int _sos_write(int fd, const char * buf, size_t * len) 360 { 358 { 361 return _sos_syscall3(SOS_SYSCALL_ID_WRITE, f 359 return _sos_syscall3(SOS_SYSCALL_ID_WRITE, fd, 362 (unsigned int) buf, 360 (unsigned int) buf, 363 (unsigned int) len); 361 (unsigned int) len); 364 } 362 } 365 363 366 364 367 int _sos_seek64(int fd, loff_t * offset, int w 365 int _sos_seek64(int fd, loff_t * offset, int whence) 368 { 366 { 369 return _sos_syscall3(SOS_SYSCALL_ID_SEEK64, 367 return _sos_syscall3(SOS_SYSCALL_ID_SEEK64, fd, 370 (unsigned int)offset, 368 (unsigned int)offset, 371 (unsigned int)whence); 369 (unsigned int)whence); 372 } 370 } 373 371 374 372 375 int _sos_fmmap(void ** ptr_hint_addr, size_t l 373 int _sos_fmmap(void ** ptr_hint_addr, size_t len, int prot, int flags, 376 int fd, loff_t offset) 374 int fd, loff_t offset) 377 { 375 { 378 return _sos_syscall7(SOS_SYSCALL_ID_FSMMAP, 376 return _sos_syscall7(SOS_SYSCALL_ID_FSMMAP, 379 (unsigned int)ptr_hint_ 377 (unsigned int)ptr_hint_addr, len, prot, flags, 380 (unsigned int)fd, 378 (unsigned int)fd, 381 /* offs64_hi */(offset 379 /* offs64_hi */(offset >> 32), 382 /* offs64_lo */(offset 380 /* offs64_lo */(offset & 0xffffffff)); 383 } 381 } 384 382 385 383 386 int _sos_ftruncate64(int fd, loff_t length) 384 int _sos_ftruncate64(int fd, loff_t length) 387 { 385 { 388 return _sos_syscall2(SOS_SYSCALL_ID_FTRUNCAT 386 return _sos_syscall2(SOS_SYSCALL_ID_FTRUNCATE64, fd, 389 (unsigned int)length); 387 (unsigned int)length); 390 } 388 } 391 389 392 390 393 int _sos_fcntl(int fd, int cmd, int arg) 391 int _sos_fcntl(int fd, int cmd, int arg) 394 { 392 { 395 return _sos_syscall3(SOS_SYSCALL_ID_FCNTL, f 393 return _sos_syscall3(SOS_SYSCALL_ID_FCNTL, fd, 396 (unsigned int)cmd, 394 (unsigned int)cmd, 397 (unsigned int)arg); 395 (unsigned int)arg); 398 } 396 } 399 397 400 398 >> 399 int _sos_ioctl(int fd, int cmd, int arg) >> 400 { >> 401 return _sos_syscall3(SOS_SYSCALL_ID_IOCTL, fd, >> 402 (unsigned int)cmd, >> 403 (unsigned int)arg); >> 404 } >> 405 >> 406 401 int _sos_creat(const char *pathname, int mode) 407 int _sos_creat(const char *pathname, int mode) 402 { 408 { 403 if (! pathname) 409 if (! pathname) 404 return -1; 410 return -1; 405 411 406 return _sos_syscall3(SOS_SYSCALL_ID_CREAT, 412 return _sos_syscall3(SOS_SYSCALL_ID_CREAT, 407 (unsigned int)pathname, 413 (unsigned int)pathname, 408 strlen(pathname), 414 strlen(pathname), 409 mode); 415 mode); 410 } 416 } 411 417 412 418 413 int _sos_link (const char *oldpath, const char 419 int _sos_link (const char *oldpath, const char *newpath) 414 { 420 { 415 if (!oldpath || !newpath) 421 if (!oldpath || !newpath) 416 return -1; 422 return -1; 417 423 418 return _sos_syscall4(SOS_SYSCALL_ID_LINK, 424 return _sos_syscall4(SOS_SYSCALL_ID_LINK, 419 (unsigned int)oldpath, 425 (unsigned int)oldpath, 420 strlen(oldpath), 426 strlen(oldpath), 421 (unsigned int)newpath, 427 (unsigned int)newpath, 422 strlen(newpath)); 428 strlen(newpath)); 423 } 429 } 424 430 425 431 426 int _sos_unlink(const char *pathname) 432 int _sos_unlink(const char *pathname) 427 { 433 { 428 if (! pathname) 434 if (! pathname) 429 return -1; 435 return -1; 430 436 431 return _sos_syscall2(SOS_SYSCALL_ID_UNLINK, 437 return _sos_syscall2(SOS_SYSCALL_ID_UNLINK, 432 (unsigned int)pathname, 438 (unsigned int)pathname, 433 strlen(pathname)); 439 strlen(pathname)); 434 } 440 } 435 441 436 442 437 int _sos_rename (const char *oldpath, const ch 443 int _sos_rename (const char *oldpath, const char *newpath) 438 { 444 { 439 if (!oldpath || !newpath) 445 if (!oldpath || !newpath) 440 return -1; 446 return -1; 441 447 442 return _sos_syscall4(SOS_SYSCALL_ID_RENAME, 448 return _sos_syscall4(SOS_SYSCALL_ID_RENAME, 443 (unsigned int)oldpath, 449 (unsigned int)oldpath, 444 strlen(oldpath), 450 strlen(oldpath), 445 (unsigned int)newpath, 451 (unsigned int)newpath, 446 strlen(newpath)); 452 strlen(newpath)); 447 } 453 } 448 454 449 455 450 int _sos_symlink(const char *target, const cha 456 int _sos_symlink(const char *target, const char *path) 451 { 457 { 452 if (!path || !target) 458 if (!path || !target) 453 return -1; 459 return -1; 454 460 455 return _sos_syscall4(SOS_SYSCALL_ID_SYMLINK, 461 return _sos_syscall4(SOS_SYSCALL_ID_SYMLINK, 456 (unsigned int)path, 462 (unsigned int)path, 457 strlen(path), 463 strlen(path), 458 (unsigned int)target, 464 (unsigned int)target, 459 strlen(target)); 465 strlen(target)); >> 466 } >> 467 >> 468 >> 469 int _sos_mknod(const char *pathname, mode_t mode, >> 470 int type, >> 471 unsigned int major, unsigned minor) >> 472 { >> 473 if (!pathname) >> 474 return -1; >> 475 >> 476 return _sos_syscall6(SOS_SYSCALL_ID_MKNOD, >> 477 (unsigned int)pathname, >> 478 strlen(pathname), >> 479 type, mode, major, minor); 460 } 480 } 461 481 462 482 463 struct dirent; /* Forward declaration */ 483 struct dirent; /* Forward declaration */ 464 int _sos_readdir(int fd, struct dirent * diren 484 int _sos_readdir(int fd, struct dirent * dirent) 465 { 485 { 466 return _sos_syscall2(SOS_SYSCALL_ID_READDIR, 486 return _sos_syscall2(SOS_SYSCALL_ID_READDIR, 467 fd, 487 fd, 468 (unsigned int)dirent); 488 (unsigned int)dirent); 469 } 489 } 470 490 471 491 472 int _sos_mkdir(const char *pathname, mode_t mo 492 int _sos_mkdir(const char *pathname, mode_t mode) 473 { 493 { 474 if (!pathname) 494 if (!pathname) 475 return -1; 495 return -1; 476 496 477 return _sos_syscall3(SOS_SYSCALL_ID_MKDIR, 497 return _sos_syscall3(SOS_SYSCALL_ID_MKDIR, 478 (unsigned int)pathname, 498 (unsigned int)pathname, 479 strlen(pathname), 499 strlen(pathname), 480 mode); 500 mode); 481 } 501 } 482 502 483 503 484 int _sos_rmdir(const char *pathname) 504 int _sos_rmdir(const char *pathname) 485 { 505 { 486 if (!pathname) 506 if (!pathname) 487 return -1; 507 return -1; 488 508 489 return _sos_syscall2(SOS_SYSCALL_ID_RMDIR, 509 return _sos_syscall2(SOS_SYSCALL_ID_RMDIR, 490 (unsigned int)pathname, 510 (unsigned int)pathname, 491 strlen(pathname)); 511 strlen(pathname)); 492 } 512 } 493 513 494 514 495 int _sos_chmod(const char *pathname, mode_t mo 515 int _sos_chmod(const char *pathname, mode_t mode) 496 { 516 { 497 if (!pathname) 517 if (!pathname) 498 return -1; 518 return -1; 499 519 500 return _sos_syscall3(SOS_SYSCALL_ID_CHMOD, 520 return _sos_syscall3(SOS_SYSCALL_ID_CHMOD, 501 (unsigned int)pathname, 521 (unsigned int)pathname, 502 strlen(pathname), 522 strlen(pathname), 503 mode); 523 mode); 504 } 524 } 505 525 506 526 507 int _sos_stat(const char *pathname, int nofoll 527 int _sos_stat(const char *pathname, int nofollow, struct stat * st) 508 { 528 { 509 if (!pathname || !st) 529 if (!pathname || !st) 510 return -1; 530 return -1; 511 531 512 return _sos_syscall4(SOS_SYSCALL_ID_STAT64, 532 return _sos_syscall4(SOS_SYSCALL_ID_STAT64, 513 (unsigned int)pathname, 533 (unsigned int)pathname, 514 strlen(pathname), 534 strlen(pathname), 515 nofollow, 535 nofollow, 516 (unsigned int)st); 536 (unsigned int)st); 517 } 537 } 518 538 519 539 520 int _sos_chroot(const char *dirname) 540 int _sos_chroot(const char *dirname) 521 { 541 { 522 if (!dirname) 542 if (!dirname) 523 return -1; 543 return -1; 524 544 525 return _sos_syscall2(SOS_SYSCALL_ID_CHROOT, 545 return _sos_syscall2(SOS_SYSCALL_ID_CHROOT, 526 (unsigned int)dirname, 546 (unsigned int)dirname, 527 strlen(dirname)); 547 strlen(dirname)); 528 } 548 } 529 549 530 550 531 int _sos_chdir(const char *dirname) 551 int _sos_chdir(const char *dirname) 532 { 552 { 533 if (!dirname) 553 if (!dirname) 534 return -1; 554 return -1; 535 555 536 return _sos_syscall2(SOS_SYSCALL_ID_CHDIR, 556 return _sos_syscall2(SOS_SYSCALL_ID_CHDIR, 537 (unsigned int)dirname, 557 (unsigned int)dirname, 538 strlen(dirname)); 558 strlen(dirname)); 539 } 559 } 540 560 541 561 542 int _sos_fchdir(int fd) 562 int _sos_fchdir(int fd) 543 { 563 { 544 return _sos_syscall1(SOS_SYSCALL_ID_FCHDIR, 564 return _sos_syscall1(SOS_SYSCALL_ID_FCHDIR, 545 (unsigned int)fd); 565 (unsigned int)fd); 546 } 566 }
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