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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) __attribute__((noreturn, alias("_sos_exit"))); 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) __attribute__ ((alias("_sos_fork"))); 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) __attribute__ ((alias("_sos_exec"))); 047 << 048 << 049 int nanosleep(unsigned long int sec, << 050 unsigned long int nanosec); << 051 << 052 << 053 int sleep(unsigned int seconds); << 054 047 055 048 056 /** 049 /** 057 * These flags (for mmap API) MUST be consiste 050 * These flags (for mmap API) MUST be consistent with those defined in 058 * paging.h and umem_vmm.h 051 * paging.h and umem_vmm.h 059 */ 052 */ 060 #define PROT_NONE 0 053 #define PROT_NONE 0 061 #define PROT_READ (1<<0) 054 #define PROT_READ (1<<0) 062 #define PROT_WRITE (1<<1) 055 #define PROT_WRITE (1<<1) 063 #define PROT_EXEC (1<<2) /* Not supported on 056 #define PROT_EXEC (1<<2) /* Not supported on IA32 */ 064 057 065 #define MAP_PRIVATE (0 << 0) !! 058 #define MAP_SHARED (1 << 0) 066 #define MAP_SHARED (1 << 0) !! 059 #define MAP_FIXED (1 << 31) 067 #define MAP_FIXED (1 << 31) !! 060 >> 061 /** >> 062 * Non standard version of mmap. Differences with standard version: >> 063 * - the resource to map is given by its "path", not by a file descriptor >> 064 * - the offset is a signed 64bits, and MUST be >= 0 (error otherwise) >> 065 * - no errno support >> 066 */ >> 067 void * mmap(void *start, size_t length, int prot , int flags, >> 068 const char *path, loff_t offset); 068 069 069 070 070 /** 071 /** 071 * Unmap the given user address interval 072 * Unmap the given user address interval 072 */ 073 */ 073 int munmap(void * start, size_t length); !! 074 int munmap(void * start, size_t length) __attribute__ ((alias("_sos_munmap"))); 074 075 075 076 076 /** 077 /** 077 * Change the access permissions of the given 078 * Change the access permissions of the given user address interval 078 */ 079 */ 079 int mprotect(const void *addr, size_t len, int !! 080 int mprotect(const void *addr, size_t len, int prot) __attribute__ ((alias("_sos_mprotect"))); >> 081 080 082 081 083 082 /** 084 /** 083 * This flag tells mremap that the underlying 085 * This flag tells mremap that the underlying VR may be moved, when necessary 084 */ 086 */ 085 #define MREMAP_MAYMOVE (1 << 30) 087 #define MREMAP_MAYMOVE (1 << 30) 086 088 087 /** 089 /** 088 * Grow/shrink the end of the given mapping 090 * Grow/shrink the end of the given mapping 089 */ 091 */ 090 void * mremap(void * old_addr, size_t old_len, 092 void * mremap(void * old_addr, size_t old_len, 091 size_t new_len, 093 size_t new_len, 092 unsigned long flags); 094 unsigned long flags); 093 095 094 096 095 /** 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 /** 097 /** 104 * Standard heap management API 098 * Standard heap management API 105 */ 099 */ 106 100 107 /** @note MT UNSAFE */ 101 /** @note MT UNSAFE */ 108 int brk(void *end_data_seg); 102 int brk(void *end_data_seg); 109 103 110 /** @note MT UNSAFE */ 104 /** @note MT UNSAFE */ 111 void *sbrk(ptrdiff_t increment); 105 void *sbrk(ptrdiff_t increment); 112 106 113 /** @note MT UNSAFE */ 107 /** @note MT UNSAFE */ 114 void * calloc (size_t nmemb, size_t size); 108 void * calloc (size_t nmemb, size_t size); 115 109 116 /** @note MT UNSAFE */ 110 /** @note MT UNSAFE */ 117 void * malloc (size_t size); 111 void * malloc (size_t size); 118 112 119 /** @note Does nothing (not implemented yet) * << 120 void free(void *ptr); << 121 << 122 << 123 /* << 124 * Filesystem subsystem << 125 */ << 126 << 127 int mount(const char *source, const char *targ << 128 const char *filesystemtype, unsigned << 129 const char *data); << 130 << 131 << 132 int umount(const char *target); << 133 << 134 << 135 void sync(void); << 136 << 137 << 138 struct statvfs << 139 { << 140 unsigned int f_rdev_major; << 141 unsigned int f_rdev_minor; << 142 size_t f_sz_total; /**< Total size * << 143 size_t f_sz_free; /**< Size left on << 144 unsigned int f_node_total;/**< Total alloca << 145 unsigned int f_node_avail;/**< Number of av << 146 unsigned int f_flags; << 147 }; << 148 << 149 int statvfs(const char *path, struct statvfs * << 150 << 151 << 152 #define O_EXCL (1 << 0) << 153 #define O_CREAT (1 << 1) << 154 #define O_TRUNC (1 << 2) << 155 #define O_NOFOLLOW (1 << 3) << 156 #define O_DIRECTORY (1 << 4) /* Incompatible w << 157 #define O_SYNC (1 << 5) << 158 << 159 #define O_RDONLY (1 << 16) << 160 #define O_WRONLY (1 << 17) << 161 #define O_RDWR (O_RDONLY | O_WRONLY) << 162 << 163 /** << 164 * FS access rights. Same as in kernel fs.h << 165 */ << 166 #define S_IRUSR 00400 << 167 #define S_IWUSR 00200 << 168 #define S_IXUSR 00100 << 169 #define S_IRWXALL 07777 /* For symlinks */ << 170 << 171 int open(const char *pathname, int flags, /* m << 172 << 173 int close(int fd); << 174 << 175 << 176 int read(int fd, char * buf, size_t len); << 177 int write(int fd, const char * buf, size_t len << 178 << 179 /* Same as sos_seek_whence_t in kernel fs.h */ << 180 #define SEEK_SET 42 << 181 #define SEEK_CUR 24 << 182 #define SEEK_END 84 << 183 off_t lseek(int fd, off_t offset, int whence); << 184 loff_t lseek64(int fd, loff_t offset, int when << 185 void * mmap(void *start, size_t length, int pr << 186 int fd, loff_t offset); << 187 int ftruncate(int fd, off_t length); << 188 int ftruncate64(int fd, loff_t length); << 189 int fcntl(int fd, int cmd, int arg); << 190 int ioctl(int fd, int cmd, int arg); << 191 << 192 int creat(const char *pathname, mode_t mode); << 193 int link (const char *oldpath, const char *new << 194 int unlink(const char *pathname); << 195 int rename(const char *oldpath, const char *ne << 196 int symlink(const char *target, const char *pa << 197 << 198 /* Same as sos_fs_node_type_t in kernel fs.h * << 199 #define S_IFREG 0x42 << 200 #define S_IFDIR 0x24 << 201 #define S_IFLNK 0x84 << 202 #define S_IFCHR 0x48 << 203 #define S_IFBLK 0x12 << 204 int mknod(const char *pathname, mode_t mode, << 205 int type, << 206 unsigned int major, unsigned minor); << 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); << 216 << 217 << 218 struct dirent << 219 { << 220 unsigned long long int storage_location; << 221 unsigned long long int offset_in_dirfile; << 222 unsigned int type; << 223 unsigned short namelen; << 224 << 225 #define SOS_FS_DIRENT_NAME_MAXLEN 128 << 226 char name[SOS_FS_DIRENT_NAME_MAXLEN]; << 227 }; << 228 << 229 /* Forward declaration (defined in libc.c) */ << 230 struct sos_DIR_struct; << 231 #define DIR struct sos_DIR_struct << 232 << 233 DIR *opendir(const char *name); << 234 int dirfd(const DIR * dir); << 235 struct dirent *readdir(DIR *dir); << 236 int closedir(DIR *dir); << 237 << 238 struct stat << 239 { << 240 unsigned int st_rdev_major; << 241 unsigned int st_rdev_minor; << 242 int st_type; << 243 unsigned long long int st_storage_location; << 244 int st_access_rights; << 245 unsigned int st_nlink; << 246 signed long long int st_size; << 247 }; << 248 << 249 int stat(const char *file_name, struct stat *b << 250 int lstat(const char *file_name, struct stat * << 251 int chroot(const char *path); << 252 int chdir(const char *path); << 253 int fchdir(int fd); << 254 << 255 int printf(const char *, ...); << 256 113 257 #endif /* _SOS_USER_LIBC_H_ */ 114 #endif /* _SOS_USER_LIBC_H_ */
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