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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 #ifndef _SOS_USER_CRT_H_ 019 #ifndef _SOS_USER_CRT_H_ 020 #define _SOS_USER_CRT_H_ 020 #define _SOS_USER_CRT_H_ 021 021 022 022 023 /** 023 /** 024 * @file crt.h 024 * @file crt.h 025 * 025 * 026 * C runtime environment for the user side of 026 * C runtime environment for the user side of the kernel/user 027 * interface 027 * interface 028 */ 028 */ 029 029 030 #include <types.h> 030 #include <types.h> 031 031 032 /** 032 /** 033 * We include the syscall.h file from the kern 033 * We include the syscall.h file from the kernel to retrieve the list 034 * of available syscall ID 034 * of available syscall ID 035 */ 035 */ 036 #include <sos/syscall.h> 036 #include <sos/syscall.h> 037 037 038 038 039 /** 039 /** 040 * The syscall wrappers hiding the details of 040 * The syscall wrappers hiding the details of the implementation 041 */ 041 */ 042 int _sos_syscall0(int id); 042 int _sos_syscall0(int id); 043 043 044 int _sos_syscall1(int id, 044 int _sos_syscall1(int id, 045 unsigned int arg1); 045 unsigned int arg1); 046 046 047 int _sos_syscall2(int id, 047 int _sos_syscall2(int id, 048 unsigned int arg1, 048 unsigned int arg1, 049 unsigned int arg2); 049 unsigned int arg2); 050 050 051 int _sos_syscall3(int id, 051 int _sos_syscall3(int id, 052 unsigned int arg1, 052 unsigned int arg1, 053 unsigned int arg2, 053 unsigned int arg2, 054 unsigned int arg3); 054 unsigned int arg3); 055 055 056 int _sos_syscall4(int id, 056 int _sos_syscall4(int id, 057 unsigned int arg1, 057 unsigned int arg1, 058 unsigned int arg2, 058 unsigned int arg2, 059 unsigned int arg3, 059 unsigned int arg3, 060 unsigned int arg4); 060 unsigned int arg4); 061 061 062 int _sos_syscall5(int id, 062 int _sos_syscall5(int id, 063 unsigned int arg1, 063 unsigned int arg1, 064 unsigned int arg2, 064 unsigned int arg2, 065 unsigned int arg3, 065 unsigned int arg3, 066 unsigned int arg4, 066 unsigned int arg4, 067 unsigned int arg5); 067 unsigned int arg5); 068 068 069 int _sos_syscall6(int id, 069 int _sos_syscall6(int id, 070 unsigned int arg1, 070 unsigned int arg1, 071 unsigned int arg2, 071 unsigned int arg2, 072 unsigned int arg3, 072 unsigned int arg3, 073 unsigned int arg4, 073 unsigned int arg4, 074 unsigned int arg5, 074 unsigned int arg5, 075 unsigned int arg6); 075 unsigned int arg6); 076 076 077 int _sos_syscall7(int id, 077 int _sos_syscall7(int id, 078 unsigned int arg1, 078 unsigned int arg1, 079 unsigned int arg2, 079 unsigned int arg2, 080 unsigned int arg3, 080 unsigned int arg3, 081 unsigned int arg4, 081 unsigned int arg4, 082 unsigned int arg5, 082 unsigned int arg5, 083 unsigned int arg6, 083 unsigned int arg6, 084 unsigned int arg7); 084 unsigned int arg7); 085 085 086 int _sos_syscall8(int id, 086 int _sos_syscall8(int id, 087 unsigned int arg1, 087 unsigned int arg1, 088 unsigned int arg2, 088 unsigned int arg2, 089 unsigned int arg3, 089 unsigned int arg3, 090 unsigned int arg4, 090 unsigned int arg4, 091 unsigned int arg5, 091 unsigned int arg5, 092 unsigned int arg6, 092 unsigned int arg6, 093 unsigned int arg7, 093 unsigned int arg7, 094 unsigned int arg8); 094 unsigned int arg8); 095 095 096 096 097 /** 097 /** 098 * The most important function of a C program 098 * The most important function of a C program ! ;) 099 */ 099 */ 100 void _sos_exit (int status) __attribute__((nor 100 void _sos_exit (int status) __attribute__((noreturn)); 101 101 102 102 103 /** 103 /** 104 * Non standard function to print something on 104 * Non standard function to print something on bochs 105 */ 105 */ 106 int _sos_bochs_write(const char *str, unsigned 106 int _sos_bochs_write(const char *str, unsigned length); 107 107 108 /** 108 /** 109 * Syscall to duplicate the current running pr 109 * Syscall to duplicate the current running process 110 */ 110 */ 111 int _sos_fork(void); 111 int _sos_fork(void); 112 112 113 113 114 /** 114 /** 115 * Syscall to re-initialize the address space 115 * Syscall to re-initialize the address space of the current process 116 * with that of the program 'progname' 116 * with that of the program 'progname' 117 */ 117 */ 118 int _sos_exec(const char * prog); 118 int _sos_exec(const char * prog); 119 119 120 120 121 /** 121 /** 122 * Syscall to unmap the given user address int 122 * Syscall to unmap the given user address interval 123 */ 123 */ 124 int _sos_munmap(void * start, size_t length); 124 int _sos_munmap(void * start, size_t length); 125 125 126 126 127 /** 127 /** 128 * Syscall to change the access permissions of 128 * Syscall to change the access permissions of the given user address 129 * interval 129 * interval 130 */ 130 */ 131 int _sos_mprotect(const void *addr, size_t len 131 int _sos_mprotect(const void *addr, size_t len, int prot); 132 132 133 133 134 /** 134 /** 135 * Syscall to resize the given user mapped res 135 * Syscall to resize the given user mapped resource at the given 136 * old_addr address 136 * old_addr address 137 */ 137 */ 138 int _sos_mresize(void * old_addr, size_t old_l 138 int _sos_mresize(void * old_addr, size_t old_len, 139 void * *new_addr, size_t new_ 139 void * *new_addr, size_t new_len, 140 unsigned long flags); 140 unsigned long flags); 141 141 142 142 >> 143 /** >> 144 * Syscall to synchronize caches with the contents of the mapped memory >> 145 */ >> 146 int _sos_msync(void *start, size_t length, int flags); >> 147 >> 148 >> 149 /** >> 150 * Definition of a thread routine >> 151 */ 143 typedef void (sos_thread_func_t(unsigned long 152 typedef void (sos_thread_func_t(unsigned long int arg)); 144 153 145 /** 154 /** 146 * Syscall to create a new thread inside the c 155 * Syscall to create a new thread inside the current process 147 */ 156 */ 148 int _sos_new_thread(sos_thread_func_t *func, 157 int _sos_new_thread(sos_thread_func_t *func, 149 void * arg, 158 void * arg, 150 size_t stack_size); 159 size_t stack_size); 151 160 152 161 153 /** 162 /** 154 * Syscall to put the calling thread asleep 163 * Syscall to put the calling thread asleep 155 */ 164 */ 156 int _sos_nanosleep(unsigned long int sec, 165 int _sos_nanosleep(unsigned long int sec, 157 unsigned long int nanosec); 166 unsigned long int nanosec); 158 167 159 168 160 /** 169 /** 161 * Syscall to get/set heap top address 170 * Syscall to get/set heap top address 162 */ 171 */ 163 void * _sos_brk(void * new_top_address); 172 void * _sos_brk(void * new_top_address); 164 173 165 174 166 int _sos_mount(const char *source, const char 175 int _sos_mount(const char *source, const char *target, 167 const char *filesystemtype, uns 176 const char *filesystemtype, unsigned long mountflags, 168 const char *data); 177 const char *data); 169 int _sos_umount(const char *target); 178 int _sos_umount(const char *target); 170 179 171 void _sos_sync(void); 180 void _sos_sync(void); 172 181 173 struct statvfs; /**< Forward declaration */ 182 struct statvfs; /**< Forward declaration */ 174 int _sos_statvfs(const char *path, struct stat 183 int _sos_statvfs(const char *path, struct statvfs *buf); 175 184 176 int _sos_open(const char * pathname, int flags 185 int _sos_open(const char * pathname, int flags, int mode); 177 int _sos_close(int fd); 186 int _sos_close(int fd); 178 187 179 int _sos_read(int fd, char * buf, size_t * len 188 int _sos_read(int fd, char * buf, size_t * len); 180 int _sos_write(int fd, const char * buf, size_ 189 int _sos_write(int fd, const char * buf, size_t * len); 181 int _sos_seek64(int fd, loff_t * offset, int w 190 int _sos_seek64(int fd, loff_t * offset, int whence); 182 int _sos_ftruncate64(int fd, loff_t length); 191 int _sos_ftruncate64(int fd, loff_t length); 183 int _sos_fmmap(void ** ptr_hint_addr, size_t l 192 int _sos_fmmap(void ** ptr_hint_addr, size_t len, int prot, int flags, 184 int fd, loff_t offset); 193 int fd, loff_t offset); 185 int _sos_fcntl(int fd, int cmd, int arg); 194 int _sos_fcntl(int fd, int cmd, int arg); 186 int _sos_ioctl(int fd, int cmd, int arg); 195 int _sos_ioctl(int fd, int cmd, int arg); 187 196 188 struct dirent; /* Forward declaration */ 197 struct dirent; /* Forward declaration */ 189 int _sos_readdir(int fd, struct dirent * diren 198 int _sos_readdir(int fd, struct dirent * dirent); 190 199 191 int _sos_creat(const char *pathname, int mode) 200 int _sos_creat(const char *pathname, int mode); 192 int _sos_link (const char *oldpath, const char 201 int _sos_link (const char *oldpath, const char *newpath); 193 int _sos_unlink(const char *pathname); 202 int _sos_unlink(const char *pathname); 194 int _sos_rename (const char *oldpath, const ch 203 int _sos_rename (const char *oldpath, const char *newpath); 195 int _sos_symlink(const char *target, const cha 204 int _sos_symlink(const char *target, const char *path); 196 int _sos_mknod(const char *pathname, mode_t mo 205 int _sos_mknod(const char *pathname, mode_t mode, 197 int type, 206 int type, 198 unsigned int major, unsigned mi 207 unsigned int major, unsigned minor); 199 208 200 int _sos_mkdir(const char *pathname, mode_t mo 209 int _sos_mkdir(const char *pathname, mode_t mode); 201 int _sos_rmdir(const char *pathname); 210 int _sos_rmdir(const char *pathname); 202 211 203 int _sos_chmod(const char *pathname, mode_t mo 212 int _sos_chmod(const char *pathname, mode_t mode); 204 213 205 struct stat; /**< forward declaration */ 214 struct stat; /**< forward declaration */ 206 int _sos_stat(const char *pathname, int nofoll 215 int _sos_stat(const char *pathname, int nofollow, struct stat * st); 207 216 208 int _sos_chroot(const char *dirname); 217 int _sos_chroot(const char *dirname); 209 int _sos_chdir(const char *dirname); 218 int _sos_chdir(const char *dirname); 210 int _sos_fchdir(int fd); 219 int _sos_fchdir(int fd); 211 220 212 #endif /* _SOS_USER_CRT_H_ */ 221 #endif /* _SOS_USER_CRT_H_ */
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