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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_LIBC_H_ 019 #ifndef _SOS_USER_LIBC_H_ 020 #define _SOS_USER_LIBC_H_ 020 #define _SOS_USER_LIBC_H_ 021 021 022 #include <types.h> 022 #include <types.h> 023 023 024 /** 024 /** 025 * @file libc.h 025 * @file libc.h 026 * 026 * 027 * The basic user C library for user programs 027 * The basic user C library for user programs 028 */ 028 */ 029 029 030 /** 030 /** 031 * The most important function of a C program 031 * The most important function of a C program ! ;) 032 */ 032 */ 033 void exit (int status); 033 void exit (int status); 034 034 035 035 036 /** 036 /** 037 * Function to duplicate the current running p 037 * Function to duplicate the current running process 038 */ 038 */ 039 pid_t fork(void); 039 pid_t fork(void); 040 040 041 041 042 /** 042 /** 043 * Function to re-initialize the address space 043 * Function to re-initialize the address space of the current process 044 * with that of the program 'progname' 044 * with that of the program 'progname' 045 */ 045 */ 046 int exec(const char *progname); 046 int exec(const char *progname); 047 047 048 048 049 int nanosleep(unsigned long int sec, 049 int nanosleep(unsigned long int sec, 050 unsigned long int nanosec); 050 unsigned long int nanosec); 051 051 052 052 053 int sleep(unsigned int seconds); 053 int sleep(unsigned int seconds); 054 054 055 055 056 /** 056 /** 057 * These flags (for mmap API) MUST be consiste 057 * These flags (for mmap API) MUST be consistent with those defined in 058 * paging.h and umem_vmm.h 058 * paging.h and umem_vmm.h 059 */ 059 */ 060 #define PROT_NONE 0 060 #define PROT_NONE 0 061 #define PROT_READ (1<<0) 061 #define PROT_READ (1<<0) 062 #define PROT_WRITE (1<<1) 062 #define PROT_WRITE (1<<1) 063 #define PROT_EXEC (1<<2) /* Not supported on 063 #define PROT_EXEC (1<<2) /* Not supported on IA32 */ 064 064 065 #define MAP_PRIVATE (0 << 0) !! 065 #define MAP_SHARED (1 << 0) 066 #define MAP_SHARED (1 << 0) !! 066 #define MAP_FIXED (1 << 31) 067 #define MAP_FIXED (1 << 31) << 068 067 069 068 070 /** 069 /** 071 * Unmap the given user address interval 070 * Unmap the given user address interval 072 */ 071 */ 073 int munmap(void * start, size_t length); 072 int munmap(void * start, size_t length); 074 073 075 074 076 /** 075 /** 077 * Change the access permissions of the given 076 * Change the access permissions of the given user address interval 078 */ 077 */ 079 int mprotect(const void *addr, size_t len, int 078 int mprotect(const void *addr, size_t len, int prot); 080 079 081 080 082 /** 081 /** 083 * This flag tells mremap that the underlying 082 * This flag tells mremap that the underlying VR may be moved, when necessary 084 */ 083 */ 085 #define MREMAP_MAYMOVE (1 << 30) 084 #define MREMAP_MAYMOVE (1 << 30) 086 085 087 /** 086 /** 088 * Grow/shrink the end of the given mapping 087 * Grow/shrink the end of the given mapping 089 */ 088 */ 090 void * mremap(void * old_addr, size_t old_len, 089 void * mremap(void * old_addr, size_t old_len, 091 size_t new_len, 090 size_t new_len, 092 unsigned long flags); 091 unsigned long flags); 093 092 094 093 095 /** Flags for msync */ << 096 #define MS_SYNC (1 << 0) << 097 #define MS_ASYNC (0 << 0) << 098 << 099 /** Synchronize cache contents with mapped mem << 100 int msync(void *start, size_t length, int flag << 101 << 102 << 103 /** 094 /** 104 * Standard heap management API 095 * Standard heap management API 105 */ 096 */ 106 097 107 /** @note MT UNSAFE */ 098 /** @note MT UNSAFE */ 108 int brk(void *end_data_seg); 099 int brk(void *end_data_seg); 109 100 110 /** @note MT UNSAFE */ 101 /** @note MT UNSAFE */ 111 void *sbrk(ptrdiff_t increment); 102 void *sbrk(ptrdiff_t increment); 112 103 113 /** @note MT UNSAFE */ 104 /** @note MT UNSAFE */ 114 void * calloc (size_t nmemb, size_t size); 105 void * calloc (size_t nmemb, size_t size); 115 106 116 /** @note MT UNSAFE */ 107 /** @note MT UNSAFE */ 117 void * malloc (size_t size); 108 void * malloc (size_t size); 118 109 119 /** @note Does nothing (not implemented yet) * 110 /** @note Does nothing (not implemented yet) */ 120 void free(void *ptr); 111 void free(void *ptr); 121 112 122 113 123 /* 114 /* 124 * Filesystem subsystem 115 * Filesystem subsystem 125 */ 116 */ 126 117 127 int mount(const char *source, const char *targ 118 int mount(const char *source, const char *target, 128 const char *filesystemtype, unsigned 119 const char *filesystemtype, unsigned long mountflags, 129 const char *data); 120 const char *data); 130 121 131 122 132 int umount(const char *target); 123 int umount(const char *target); 133 124 134 125 135 void sync(void); 126 void sync(void); 136 127 137 128 138 struct statvfs 129 struct statvfs 139 { 130 { 140 unsigned int f_rdev_major; 131 unsigned int f_rdev_major; 141 unsigned int f_rdev_minor; 132 unsigned int f_rdev_minor; 142 size_t f_sz_total; /**< Total size * 133 size_t f_sz_total; /**< Total size */ 143 size_t f_sz_free; /**< Size left on 134 size_t f_sz_free; /**< Size left on device */ 144 unsigned int f_node_total;/**< Total alloca 135 unsigned int f_node_total;/**< Total allocatable FS nodes */ 145 unsigned int f_node_avail;/**< Number of av 136 unsigned int f_node_avail;/**< Number of available free FS nodes */ 146 unsigned int f_flags; 137 unsigned int f_flags; 147 }; 138 }; 148 139 149 int statvfs(const char *path, struct statvfs * 140 int statvfs(const char *path, struct statvfs *buf); 150 141 151 142 152 #define O_EXCL (1 << 0) 143 #define O_EXCL (1 << 0) 153 #define O_CREAT (1 << 1) 144 #define O_CREAT (1 << 1) 154 #define O_TRUNC (1 << 2) 145 #define O_TRUNC (1 << 2) 155 #define O_NOFOLLOW (1 << 3) 146 #define O_NOFOLLOW (1 << 3) 156 #define O_DIRECTORY (1 << 4) /* Incompatible w 147 #define O_DIRECTORY (1 << 4) /* Incompatible with CREAT/TRUNC */ 157 #define O_SYNC (1 << 5) 148 #define O_SYNC (1 << 5) 158 149 159 #define O_RDONLY (1 << 16) 150 #define O_RDONLY (1 << 16) 160 #define O_WRONLY (1 << 17) 151 #define O_WRONLY (1 << 17) 161 #define O_RDWR (O_RDONLY | O_WRONLY) 152 #define O_RDWR (O_RDONLY | O_WRONLY) 162 153 163 /** 154 /** 164 * FS access rights. Same as in kernel fs.h 155 * FS access rights. Same as in kernel fs.h 165 */ 156 */ 166 #define S_IRUSR 00400 157 #define S_IRUSR 00400 167 #define S_IWUSR 00200 158 #define S_IWUSR 00200 168 #define S_IXUSR 00100 159 #define S_IXUSR 00100 169 #define S_IRWXALL 07777 /* For symlinks */ 160 #define S_IRWXALL 07777 /* For symlinks */ 170 161 171 int open(const char *pathname, int flags, /* m 162 int open(const char *pathname, int flags, /* mode_t mode */...); 172 163 173 int close(int fd); 164 int close(int fd); 174 165 175 166 176 int read(int fd, char * buf, size_t len); 167 int read(int fd, char * buf, size_t len); 177 int write(int fd, const char * buf, size_t len 168 int write(int fd, const char * buf, size_t len); 178 169 179 /* Same as sos_seek_whence_t in kernel fs.h */ 170 /* Same as sos_seek_whence_t in kernel fs.h */ 180 #define SEEK_SET 42 171 #define SEEK_SET 42 181 #define SEEK_CUR 24 172 #define SEEK_CUR 24 182 #define SEEK_END 84 173 #define SEEK_END 84 183 off_t lseek(int fd, off_t offset, int whence); 174 off_t lseek(int fd, off_t offset, int whence); 184 loff_t lseek64(int fd, loff_t offset, int when 175 loff_t lseek64(int fd, loff_t offset, int whence); 185 void * mmap(void *start, size_t length, int pr 176 void * mmap(void *start, size_t length, int prot , int flags, 186 int fd, loff_t offset); 177 int fd, loff_t offset); 187 int ftruncate(int fd, off_t length); 178 int ftruncate(int fd, off_t length); 188 int ftruncate64(int fd, loff_t length); 179 int ftruncate64(int fd, loff_t length); 189 int fcntl(int fd, int cmd, int arg); 180 int fcntl(int fd, int cmd, int arg); 190 int ioctl(int fd, int cmd, int arg); 181 int ioctl(int fd, int cmd, int arg); 191 182 192 int creat(const char *pathname, mode_t mode); 183 int creat(const char *pathname, mode_t mode); 193 int link (const char *oldpath, const char *new 184 int link (const char *oldpath, const char *newpath); 194 int unlink(const char *pathname); 185 int unlink(const char *pathname); 195 int rename(const char *oldpath, const char *ne 186 int rename(const char *oldpath, const char *newpath); 196 int symlink(const char *target, const char *pa 187 int symlink(const char *target, const char *path); 197 188 198 /* Same as sos_fs_node_type_t in kernel fs.h * 189 /* Same as sos_fs_node_type_t in kernel fs.h */ 199 #define S_IFREG 0x42 190 #define S_IFREG 0x42 200 #define S_IFDIR 0x24 191 #define S_IFDIR 0x24 201 #define S_IFLNK 0x84 192 #define S_IFLNK 0x84 202 #define S_IFCHR 0x48 193 #define S_IFCHR 0x48 203 #define S_IFBLK 0x12 << 204 int mknod(const char *pathname, mode_t mode, 194 int mknod(const char *pathname, mode_t mode, 205 int type, 195 int type, 206 unsigned int major, unsigned minor); 196 unsigned int major, unsigned minor); 207 197 208 198 209 int mkdir(const char *pathname, mode_t mode); 199 int mkdir(const char *pathname, mode_t mode); 210 200 211 201 212 int rmdir(const char *pathname); 202 int rmdir(const char *pathname); 213 203 214 204 215 int chmod(const char *path, mode_t mode); 205 int chmod(const char *path, mode_t mode); 216 206 217 207 218 struct dirent 208 struct dirent 219 { 209 { 220 unsigned long long int storage_location; 210 unsigned long long int storage_location; 221 unsigned long long int offset_in_dirfile; 211 unsigned long long int offset_in_dirfile; 222 unsigned int type; 212 unsigned int type; 223 unsigned short namelen; 213 unsigned short namelen; 224 214 225 #define SOS_FS_DIRENT_NAME_MAXLEN 128 215 #define SOS_FS_DIRENT_NAME_MAXLEN 128 226 char name[SOS_FS_DIRENT_NAME_MAXLEN]; 216 char name[SOS_FS_DIRENT_NAME_MAXLEN]; 227 }; 217 }; 228 218 229 /* Forward declaration (defined in libc.c) */ 219 /* Forward declaration (defined in libc.c) */ 230 struct sos_DIR_struct; 220 struct sos_DIR_struct; 231 #define DIR struct sos_DIR_struct 221 #define DIR struct sos_DIR_struct 232 222 233 DIR *opendir(const char *name); 223 DIR *opendir(const char *name); 234 int dirfd(const DIR * dir); 224 int dirfd(const DIR * dir); 235 struct dirent *readdir(DIR *dir); 225 struct dirent *readdir(DIR *dir); 236 int closedir(DIR *dir); 226 int closedir(DIR *dir); 237 227 238 struct stat 228 struct stat 239 { 229 { 240 unsigned int st_rdev_major; 230 unsigned int st_rdev_major; 241 unsigned int st_rdev_minor; 231 unsigned int st_rdev_minor; 242 int st_type; 232 int st_type; 243 unsigned long long int st_storage_location; 233 unsigned long long int st_storage_location; 244 int st_access_rights; 234 int st_access_rights; 245 unsigned int st_nlink; 235 unsigned int st_nlink; 246 signed long long int st_size; 236 signed long long int st_size; 247 }; 237 }; 248 238 249 int stat(const char *file_name, struct stat *b 239 int stat(const char *file_name, struct stat *buf); 250 int lstat(const char *file_name, struct stat * 240 int lstat(const char *file_name, struct stat *buf); 251 int chroot(const char *path); 241 int chroot(const char *path); 252 int chdir(const char *path); 242 int chdir(const char *path); 253 int fchdir(int fd); 243 int fchdir(int fd); 254 244 255 int printf(const char *, ...); 245 int printf(const char *, ...); 256 246 257 #endif /* _SOS_USER_LIBC_H_ */ 247 #endif /* _SOS_USER_LIBC_H_ */
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