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