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