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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 __attribute__((noreturn, alias("_sos_exit << 035 034 036 035 037 /** 036 /** 038 * Function to duplicate the current running p 037 * Function to duplicate the current running process 039 */ 038 */ 040 pid_t fork(void) !! 039 pid_t fork(void); 041 __attribute__ ((alias("_sos_fork"))); << 042 040 043 041 044 /** 042 /** 045 * Function to re-initialize the address space 043 * Function to re-initialize the address space of the current process 046 * with that of the program 'progname' 044 * with that of the program 'progname' 047 */ 045 */ 048 int exec(const char *progname) !! 046 int exec(const char *progname); 049 __attribute__ ((alias("_sos_exec"))); << 050 047 051 048 052 int nanosleep(unsigned long int sec, 049 int nanosleep(unsigned long int sec, 053 unsigned long int nanosec) !! 050 unsigned long int nanosec); 054 __attribute__ ((alias("_sos_nanosleep"))) !! 051 >> 052 >> 053 int sleep(unsigned int seconds); >> 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 !! 067 #define MAP_FIXED (1 << 31) 068 /** << 069 * Non standard version of mmap. Differences w << 070 * - the resource to map is given by its "pat << 071 * - the offset is a signed 64bits, and MUST << 072 * - no errno support << 073 */ << 074 void * fakemmap(void *start, size_t length, in << 075 const char *path, loff_t offse << 076 068 077 069 078 /** 070 /** 079 * Unmap the given user address interval 071 * Unmap the given user address interval 080 */ 072 */ 081 int munmap(void * start, size_t length) !! 073 int munmap(void * start, size_t length); 082 __attribute__ ((alias("_sos_munmap"))); << 083 074 084 075 085 /** 076 /** 086 * Change the access permissions of the given 077 * Change the access permissions of the given user address interval 087 */ 078 */ 088 int mprotect(const void *addr, size_t len, int !! 079 int mprotect(const void *addr, size_t len, int prot); 089 __attribute__ ((alias("_sos_mprotect"))); << 090 << 091 080 092 081 093 /** 082 /** 094 * This flag tells mremap that the underlying 083 * This flag tells mremap that the underlying VR may be moved, when necessary 095 */ 084 */ 096 #define MREMAP_MAYMOVE (1 << 30) 085 #define MREMAP_MAYMOVE (1 << 30) 097 086 098 /** 087 /** 099 * Grow/shrink the end of the given mapping 088 * Grow/shrink the end of the given mapping 100 */ 089 */ 101 void * mremap(void * old_addr, size_t old_len, 090 void * mremap(void * old_addr, size_t old_len, 102 size_t new_len, 091 size_t new_len, 103 unsigned long flags); 092 unsigned long flags); 104 093 105 094 >> 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 >> 102 106 /** 103 /** 107 * Standard heap management API 104 * Standard heap management API 108 */ 105 */ 109 106 110 /** @note MT UNSAFE */ 107 /** @note MT UNSAFE */ 111 int brk(void *end_data_seg); 108 int brk(void *end_data_seg); 112 109 113 /** @note MT UNSAFE */ 110 /** @note MT UNSAFE */ 114 void *sbrk(ptrdiff_t increment); 111 void *sbrk(ptrdiff_t increment); 115 112 116 /** @note MT UNSAFE */ 113 /** @note MT UNSAFE */ 117 void * calloc (size_t nmemb, size_t size); 114 void * calloc (size_t nmemb, size_t size); 118 115 119 /** @note MT UNSAFE */ 116 /** @note MT UNSAFE */ 120 void * malloc (size_t size); 117 void * malloc (size_t size); 121 118 122 /** @note Does nothing (not implemented yet) * 119 /** @note Does nothing (not implemented yet) */ 123 void free(void *ptr); 120 void free(void *ptr); 124 121 125 122 126 /* 123 /* 127 * Filesystem subsystem 124 * Filesystem subsystem 128 */ 125 */ 129 126 130 int mount(const char *source, const char *targ 127 int mount(const char *source, const char *target, 131 const char *filesystemtype, unsigned 128 const char *filesystemtype, unsigned long mountflags, 132 const char *data) !! 129 const char *data); 133 __attribute__ ((alias("_sos_mount"))); !! 130 134 int umount(const char *target) !! 131 135 __attribute__ ((alias("_sos_umount"))); !! 132 int umount(const char *target); 136 void sync(void) !! 133 137 __attribute__ ((alias("_sos_sync"))); !! 134 >> 135 void sync(void); >> 136 138 137 139 struct statvfs 138 struct statvfs 140 { 139 { >> 140 unsigned int f_rdev_major; >> 141 unsigned int f_rdev_minor; 141 size_t f_sz_total; /**< Total size * 142 size_t f_sz_total; /**< Total size */ 142 size_t f_sz_free; /**< Size left on 143 size_t f_sz_free; /**< Size left on device */ 143 unsigned int f_node_total;/**< Total alloca 144 unsigned int f_node_total;/**< Total allocatable FS nodes */ 144 unsigned int f_node_avail;/**< Number of av 145 unsigned int f_node_avail;/**< Number of available free FS nodes */ 145 unsigned int f_flags; 146 unsigned int f_flags; 146 }; 147 }; 147 148 148 int statvfs(const char *path, struct statvfs * !! 149 int statvfs(const char *path, struct statvfs *buf); 149 __attribute__ ((alias("_sos_statvfs"))); !! 150 150 151 151 #define O_EXCL (1 << 0) 152 #define O_EXCL (1 << 0) 152 #define O_CREAT (1 << 1) 153 #define O_CREAT (1 << 1) 153 #define O_NOFOLLOW (1 << 2) !! 154 #define O_TRUNC (1 << 2) 154 #define O_DIRECTORY (1 << 3) /* Incompatible w !! 155 #define O_NOFOLLOW (1 << 3) 155 #define O_SYNC (1 << 4) !! 156 #define O_DIRECTORY (1 << 4) /* Incompatible with CREAT/TRUNC */ >> 157 #define O_SYNC (1 << 5) 156 158 157 #define O_RDONLY (1 << 16) 159 #define O_RDONLY (1 << 16) 158 #define O_WRONLY (1 << 17) 160 #define O_WRONLY (1 << 17) 159 #define O_RDWR (O_RDONLY | O_WRONLY) 161 #define O_RDWR (O_RDONLY | O_WRONLY) 160 162 161 /** 163 /** 162 * FS access rights. Same as in kernel fs.h 164 * FS access rights. Same as in kernel fs.h 163 */ 165 */ 164 #define S_IRUSR 00400 166 #define S_IRUSR 00400 165 #define S_IWUSR 00200 167 #define S_IWUSR 00200 166 #define S_IXUSR 00100 168 #define S_IXUSR 00100 167 #define S_IRWXALL 07777 /* For symlinks */ 169 #define S_IRWXALL 07777 /* For symlinks */ 168 170 169 int open(const char *pathname, int flags, /* m 171 int open(const char *pathname, int flags, /* mode_t mode */...); 170 172 171 int close(int fd) !! 173 int close(int fd); 172 __attribute__ ((alias("_sos_close"))); !! 174 173 175 174 int read(int fd, char * buf, size_t len); 176 int read(int fd, char * buf, size_t len); 175 int write(int fd, const char * buf, size_t len 177 int write(int fd, const char * buf, size_t len); 176 178 177 /* Same as sos_seek_whence_t in kernel fs.h */ 179 /* Same as sos_seek_whence_t in kernel fs.h */ 178 #define SEEK_SET 42 180 #define SEEK_SET 42 179 #define SEEK_CUR 24 181 #define SEEK_CUR 24 180 #define SEEK_END 84 182 #define SEEK_END 84 181 off_t lseek(int fd, off_t offset, int whence); 183 off_t lseek(int fd, off_t offset, int whence); 182 loff_t lseek64(int fd, loff_t offset, int when 184 loff_t lseek64(int fd, loff_t offset, int whence); 183 void * mmap(void *start, size_t length, int pr 185 void * mmap(void *start, size_t length, int prot , int flags, 184 int fd, loff_t offset); 186 int fd, loff_t offset); 185 int ftruncate(int fd, off_t length); 187 int ftruncate(int fd, off_t length); 186 int ftruncate64(int fd, loff_t length) !! 188 int ftruncate64(int fd, loff_t length); 187 __attribute__ ((alias("_sos_ftruncate64") !! 189 int fcntl(int fd, int cmd, int arg); 188 int fcntl(int fd, int cmd, int arg) !! 190 int ioctl(int fd, int cmd, int arg); 189 __attribute__ ((alias("_sos_fcntl"))); !! 191 190 !! 192 int creat(const char *pathname, mode_t mode); 191 int creat(const char *pathname, mode_t mode) !! 193 int link (const char *oldpath, const char *newpath); 192 __attribute__ ((alias("_sos_creat"))); !! 194 int unlink(const char *pathname); 193 int link (const char *oldpath, const char *new !! 195 int rename(const char *oldpath, const char *newpath); 194 __attribute__ ((alias("_sos_link"))); !! 196 int symlink(const char *target, const char *path); 195 int unlink(const char *pathname) !! 197 196 __attribute__ ((alias("_sos_unlink"))); !! 198 /* Same as sos_fs_node_type_t in kernel fs.h */ 197 int rename(const char *oldpath, const char *ne !! 199 #define S_IFREG 0x42 198 __attribute__ ((alias("_sos_rename"))); !! 200 #define S_IFDIR 0x24 199 int symlink(const char *target, const char *pa !! 201 #define S_IFLNK 0x84 200 __attribute__ ((alias("_sos_symlink"))); !! 202 #define S_IFCHR 0x48 201 !! 203 #define S_IFBLK 0x12 202 int mkdir(const char *pathname, mode_t mode) !! 204 int mknod(const char *pathname, mode_t mode, 203 __attribute__ ((alias("_sos_mkdir"))); !! 205 int type, 204 int rmdir(const char *pathname) !! 206 unsigned int major, unsigned minor); 205 __attribute__ ((alias("_sos_rmdir"))); !! 207 >> 208 >> 209 int mkdir(const char *pathname, mode_t mode); >> 210 >> 211 >> 212 int rmdir(const char *pathname); >> 213 >> 214 >> 215 int chmod(const char *path, mode_t mode); 206 216 207 int chmod(const char *path, mode_t mode) << 208 __attribute__ ((alias("_sos_chmod"))); << 209 217 210 struct dirent 218 struct dirent 211 { 219 { 212 unsigned long long int storage_location; 220 unsigned long long int storage_location; 213 unsigned long long int offset_in_dirfile; 221 unsigned long long int offset_in_dirfile; 214 << 215 /* Same as sos_fs_node_type_t in kernel fs.h * << 216 #define S_IFREG 0x42 << 217 #define S_IFDIR 0x24 << 218 #define S_IFLNK 0x84 << 219 unsigned int type; 222 unsigned int type; 220 unsigned short namelen; 223 unsigned short namelen; 221 224 222 #define SOS_FS_DIRENT_NAME_MAXLEN 128 225 #define SOS_FS_DIRENT_NAME_MAXLEN 128 223 char name[SOS_FS_DIRENT_NAME_MAXLEN]; 226 char name[SOS_FS_DIRENT_NAME_MAXLEN]; 224 }; 227 }; 225 228 226 /* Forward declaration (defined in libc.c) */ 229 /* Forward declaration (defined in libc.c) */ 227 struct sos_DIR_struct; 230 struct sos_DIR_struct; 228 #define DIR struct sos_DIR_struct 231 #define DIR struct sos_DIR_struct 229 232 230 DIR *opendir(const char *name); 233 DIR *opendir(const char *name); 231 int dirfd(const DIR * dir); 234 int dirfd(const DIR * dir); 232 struct dirent *readdir(DIR *dir); 235 struct dirent *readdir(DIR *dir); 233 int closedir(DIR *dir); 236 int closedir(DIR *dir); 234 237 235 struct stat 238 struct stat 236 { 239 { >> 240 unsigned int st_rdev_major; >> 241 unsigned int st_rdev_minor; 237 int st_type; 242 int st_type; 238 unsigned long long int st_storage_location; 243 unsigned long long int st_storage_location; 239 int st_access_rights; 244 int st_access_rights; 240 unsigned int st_nlink; 245 unsigned int st_nlink; 241 signed long long int st_size; 246 signed long long int st_size; 242 }; 247 }; 243 248 244 int stat(const char *file_name, struct stat *b 249 int stat(const char *file_name, struct stat *buf); 245 int lstat(const char *file_name, struct stat * 250 int lstat(const char *file_name, struct stat *buf); >> 251 int chroot(const char *path); >> 252 int chdir(const char *path); >> 253 int fchdir(int fd); 246 254 247 int chroot(const char *path) !! 255 int printf(const char *, ...); 248 __attribute__ ((alias("_sos_chroot"))); << 249 int chdir(const char *path) << 250 __attribute__ ((alias("_sos_chdir"))); << 251 int fchdir(int fd) << 252 __attribute__ ((alias("_sos_fchdir"))); << 253 << 254 << 255 256 256 #endif /* _SOS_USER_LIBC_H_ */ 257 #endif /* _SOS_USER_LIBC_H_ */
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