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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_SHARED (1 << 0) 066 #define MAP_FIXED (1 << 31) 066 #define MAP_FIXED (1 << 31) 067 067 068 /** << 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 << 077 068 078 /** 069 /** 079 * Unmap the given user address interval 070 * Unmap the given user address interval 080 */ 071 */ 081 int munmap(void * start, size_t length) !! 072 int munmap(void * start, size_t length); 082 __attribute__ ((alias("_sos_munmap"))); << 083 073 084 074 085 /** 075 /** 086 * Change the access permissions of the given 076 * Change the access permissions of the given user address interval 087 */ 077 */ 088 int mprotect(const void *addr, size_t len, int !! 078 int mprotect(const void *addr, size_t len, int prot); 089 __attribute__ ((alias("_sos_mprotect"))); << 090 << 091 079 092 080 093 /** 081 /** 094 * This flag tells mremap that the underlying 082 * This flag tells mremap that the underlying VR may be moved, when necessary 095 */ 083 */ 096 #define MREMAP_MAYMOVE (1 << 30) 084 #define MREMAP_MAYMOVE (1 << 30) 097 085 098 /** 086 /** 099 * Grow/shrink the end of the given mapping 087 * Grow/shrink the end of the given mapping 100 */ 088 */ 101 void * mremap(void * old_addr, size_t old_len, 089 void * mremap(void * old_addr, size_t old_len, 102 size_t new_len, 090 size_t new_len, 103 unsigned long flags); 091 unsigned long flags); 104 092 105 093 106 /** 094 /** 107 * Standard heap management API 095 * Standard heap management API 108 */ 096 */ 109 097 110 /** @note MT UNSAFE */ 098 /** @note MT UNSAFE */ 111 int brk(void *end_data_seg); 099 int brk(void *end_data_seg); 112 100 113 /** @note MT UNSAFE */ 101 /** @note MT UNSAFE */ 114 void *sbrk(ptrdiff_t increment); 102 void *sbrk(ptrdiff_t increment); 115 103 116 /** @note MT UNSAFE */ 104 /** @note MT UNSAFE */ 117 void * calloc (size_t nmemb, size_t size); 105 void * calloc (size_t nmemb, size_t size); 118 106 119 /** @note MT UNSAFE */ 107 /** @note MT UNSAFE */ 120 void * malloc (size_t size); 108 void * malloc (size_t size); 121 109 122 /** @note Does nothing (not implemented yet) * 110 /** @note Does nothing (not implemented yet) */ 123 void free(void *ptr); 111 void free(void *ptr); 124 112 125 113 126 /* 114 /* 127 * Filesystem subsystem 115 * Filesystem subsystem 128 */ 116 */ 129 117 130 int mount(const char *source, const char *targ 118 int mount(const char *source, const char *target, 131 const char *filesystemtype, unsigned 119 const char *filesystemtype, unsigned long mountflags, 132 const char *data) !! 120 const char *data); 133 __attribute__ ((alias("_sos_mount"))); !! 121 134 int umount(const char *target) !! 122 135 __attribute__ ((alias("_sos_umount"))); !! 123 int umount(const char *target); 136 void sync(void) !! 124 137 __attribute__ ((alias("_sos_sync"))); !! 125 >> 126 void sync(void); >> 127 138 128 139 struct statvfs 129 struct statvfs 140 { 130 { >> 131 unsigned int f_rdev_major; >> 132 unsigned int f_rdev_minor; 141 size_t f_sz_total; /**< Total size * 133 size_t f_sz_total; /**< Total size */ 142 size_t f_sz_free; /**< Size left on 134 size_t f_sz_free; /**< Size left on device */ 143 unsigned int f_node_total;/**< Total alloca 135 unsigned int f_node_total;/**< Total allocatable FS nodes */ 144 unsigned int f_node_avail;/**< Number of av 136 unsigned int f_node_avail;/**< Number of available free FS nodes */ 145 unsigned int f_flags; 137 unsigned int f_flags; 146 }; 138 }; 147 139 148 int statvfs(const char *path, struct statvfs * !! 140 int statvfs(const char *path, struct statvfs *buf); 149 __attribute__ ((alias("_sos_statvfs"))); !! 141 150 142 151 #define O_EXCL (1 << 0) 143 #define O_EXCL (1 << 0) 152 #define O_CREAT (1 << 1) 144 #define O_CREAT (1 << 1) 153 #define O_NOFOLLOW (1 << 2) !! 145 #define O_TRUNC (1 << 2) 154 #define O_DIRECTORY (1 << 3) /* Incompatible w !! 146 #define O_NOFOLLOW (1 << 3) 155 #define O_SYNC (1 << 4) !! 147 #define O_DIRECTORY (1 << 4) /* Incompatible with CREAT/TRUNC */ >> 148 #define O_SYNC (1 << 5) 156 149 157 #define O_RDONLY (1 << 16) 150 #define O_RDONLY (1 << 16) 158 #define O_WRONLY (1 << 17) 151 #define O_WRONLY (1 << 17) 159 #define O_RDWR (O_RDONLY | O_WRONLY) 152 #define O_RDWR (O_RDONLY | O_WRONLY) 160 153 161 /** 154 /** 162 * FS access rights. Same as in kernel fs.h 155 * FS access rights. Same as in kernel fs.h 163 */ 156 */ 164 #define S_IRUSR 00400 157 #define S_IRUSR 00400 165 #define S_IWUSR 00200 158 #define S_IWUSR 00200 166 #define S_IXUSR 00100 159 #define S_IXUSR 00100 167 #define S_IRWXALL 07777 /* For symlinks */ 160 #define S_IRWXALL 07777 /* For symlinks */ 168 161 169 int open(const char *pathname, int flags, /* m 162 int open(const char *pathname, int flags, /* mode_t mode */...); 170 163 171 int close(int fd) !! 164 int close(int fd); 172 __attribute__ ((alias("_sos_close"))); !! 165 173 166 174 int read(int fd, char * buf, size_t len); 167 int read(int fd, char * buf, size_t len); 175 int write(int fd, const char * buf, size_t len 168 int write(int fd, const char * buf, size_t len); 176 169 177 /* Same as sos_seek_whence_t in kernel fs.h */ 170 /* Same as sos_seek_whence_t in kernel fs.h */ 178 #define SEEK_SET 42 171 #define SEEK_SET 42 179 #define SEEK_CUR 24 172 #define SEEK_CUR 24 180 #define SEEK_END 84 173 #define SEEK_END 84 181 off_t lseek(int fd, off_t offset, int whence); 174 off_t lseek(int fd, off_t offset, int whence); 182 loff_t lseek64(int fd, loff_t offset, int when 175 loff_t lseek64(int fd, loff_t offset, int whence); 183 void * mmap(void *start, size_t length, int pr 176 void * mmap(void *start, size_t length, int prot , int flags, 184 int fd, loff_t offset); 177 int fd, loff_t offset); 185 int ftruncate(int fd, off_t length); 178 int ftruncate(int fd, off_t length); 186 int ftruncate64(int fd, loff_t length) !! 179 int ftruncate64(int fd, loff_t length); 187 __attribute__ ((alias("_sos_ftruncate64") !! 180 int fcntl(int fd, int cmd, int arg); 188 int fcntl(int fd, int cmd, int arg) !! 181 int ioctl(int fd, int cmd, int arg); 189 __attribute__ ((alias("_sos_fcntl"))); !! 182 190 !! 183 int creat(const char *pathname, mode_t mode); 191 int creat(const char *pathname, mode_t mode) !! 184 int link (const char *oldpath, const char *newpath); 192 __attribute__ ((alias("_sos_creat"))); !! 185 int unlink(const char *pathname); 193 int link (const char *oldpath, const char *new !! 186 int rename(const char *oldpath, const char *newpath); 194 __attribute__ ((alias("_sos_link"))); !! 187 int symlink(const char *target, const char *path); 195 int unlink(const char *pathname) !! 188 196 __attribute__ ((alias("_sos_unlink"))); !! 189 /* Same as sos_fs_node_type_t in kernel fs.h */ 197 int rename(const char *oldpath, const char *ne !! 190 #define S_IFREG 0x42 198 __attribute__ ((alias("_sos_rename"))); !! 191 #define S_IFDIR 0x24 199 int symlink(const char *target, const char *pa !! 192 #define S_IFLNK 0x84 200 __attribute__ ((alias("_sos_symlink"))); !! 193 #define S_IFCHR 0x48 201 !! 194 int mknod(const char *pathname, mode_t mode, 202 int mkdir(const char *pathname, mode_t mode) !! 195 int type, 203 __attribute__ ((alias("_sos_mkdir"))); !! 196 unsigned int major, unsigned minor); 204 int rmdir(const char *pathname) !! 197 205 __attribute__ ((alias("_sos_rmdir"))); !! 198 >> 199 int mkdir(const char *pathname, mode_t mode); >> 200 >> 201 >> 202 int rmdir(const char *pathname); >> 203 >> 204 >> 205 int chmod(const char *path, mode_t mode); 206 206 207 int chmod(const char *path, mode_t mode) << 208 __attribute__ ((alias("_sos_chmod"))); << 209 207 210 struct dirent 208 struct dirent 211 { 209 { 212 unsigned long long int storage_location; 210 unsigned long long int storage_location; 213 unsigned long long int offset_in_dirfile; 211 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; 212 unsigned int type; 220 unsigned short namelen; 213 unsigned short namelen; 221 214 222 #define SOS_FS_DIRENT_NAME_MAXLEN 128 215 #define SOS_FS_DIRENT_NAME_MAXLEN 128 223 char name[SOS_FS_DIRENT_NAME_MAXLEN]; 216 char name[SOS_FS_DIRENT_NAME_MAXLEN]; 224 }; 217 }; 225 218 226 /* Forward declaration (defined in libc.c) */ 219 /* Forward declaration (defined in libc.c) */ 227 struct sos_DIR_struct; 220 struct sos_DIR_struct; 228 #define DIR struct sos_DIR_struct 221 #define DIR struct sos_DIR_struct 229 222 230 DIR *opendir(const char *name); 223 DIR *opendir(const char *name); 231 int dirfd(const DIR * dir); 224 int dirfd(const DIR * dir); 232 struct dirent *readdir(DIR *dir); 225 struct dirent *readdir(DIR *dir); 233 int closedir(DIR *dir); 226 int closedir(DIR *dir); 234 227 235 struct stat 228 struct stat 236 { 229 { >> 230 unsigned int st_rdev_major; >> 231 unsigned int st_rdev_minor; 237 int st_type; 232 int st_type; 238 unsigned long long int st_storage_location; 233 unsigned long long int st_storage_location; 239 int st_access_rights; 234 int st_access_rights; 240 unsigned int st_nlink; 235 unsigned int st_nlink; 241 signed long long int st_size; 236 signed long long int st_size; 242 }; 237 }; 243 238 244 int stat(const char *file_name, struct stat *b 239 int stat(const char *file_name, struct stat *buf); 245 int lstat(const char *file_name, struct stat * 240 int lstat(const char *file_name, struct stat *buf); >> 241 int chroot(const char *path); >> 242 int chdir(const char *path); >> 243 int fchdir(int fd); 246 244 247 int chroot(const char *path) !! 245 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 << 255 246 256 #endif /* _SOS_USER_LIBC_H_ */ 247 #endif /* _SOS_USER_LIBC_H_ */
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