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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 __attribute__((noreturn, alias("_sos_exit << 035 << 036 << 037 /** << 038 * Function to duplicate the current running p << 039 */ << 040 pid_t fork(void) << 041 __attribute__ ((alias("_sos_fork"))); << 042 << 043 << 044 /** << 045 * Function to re-initialize the address space << 046 * with that of the program 'progname' << 047 */ << 048 int exec(const char *progname) << 049 __attribute__ ((alias("_sos_exec"))); << 050 << 051 << 052 int nanosleep(unsigned long int sec, << 053 unsigned long int nanosec) << 054 __attribute__ ((alias("_sos_nanosleep"))) << 055 << 056 /** << 057 * These flags (for mmap API) MUST be consiste << 058 * paging.h and umem_vmm.h << 059 */ << 060 #define PROT_NONE 0 << 061 #define PROT_READ (1<<0) << 062 #define PROT_WRITE (1<<1) << 063 #define PROT_EXEC (1<<2) /* Not supported on << 064 << 065 #define MAP_SHARED (1 << 0) << 066 #define MAP_FIXED (1 << 31) << 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 << 078 /** << 079 * Unmap the given user address interval << 080 */ << 081 int munmap(void * start, size_t length) << 082 __attribute__ ((alias("_sos_munmap"))); << 083 << 084 << 085 /** << 086 * Change the access permissions of the given << 087 */ << 088 int mprotect(const void *addr, size_t len, int << 089 __attribute__ ((alias("_sos_mprotect"))); << 090 << 091 << 092 << 093 /** << 094 * This flag tells mremap that the underlying << 095 */ << 096 #define MREMAP_MAYMOVE (1 << 30) << 097 << 098 /** << 099 * Grow/shrink the end of the given mapping << 100 */ << 101 void * mremap(void * old_addr, size_t old_len, << 102 size_t new_len, << 103 unsigned long flags); << 104 << 105 << 106 /** << 107 * Standard heap management API << 108 */ << 109 << 110 /** @note MT UNSAFE */ << 111 int brk(void *end_data_seg); << 112 << 113 /** @note MT UNSAFE */ << 114 void *sbrk(ptrdiff_t increment); << 115 << 116 /** @note MT UNSAFE */ << 117 void * calloc (size_t nmemb, size_t size); << 118 << 119 /** @note MT UNSAFE */ << 120 void * malloc (size_t size); << 121 << 122 /** @note Does nothing (not implemented yet) * << 123 void free(void *ptr); << 124 << 125 << 126 /* << 127 * Filesystem subsystem << 128 */ << 129 << 130 int mount(const char *source, const char *targ << 131 const char *filesystemtype, unsigned << 132 const char *data) << 133 __attribute__ ((alias("_sos_mount"))); << 134 int umount(const char *target) << 135 __attribute__ ((alias("_sos_umount"))); << 136 void sync(void) << 137 __attribute__ ((alias("_sos_sync"))); << 138 << 139 struct statvfs << 140 { << 141 size_t f_sz_total; /**< Total size * << 142 size_t f_sz_free; /**< Size left on << 143 unsigned int f_node_total;/**< Total alloca << 144 unsigned int f_node_avail;/**< Number of av << 145 unsigned int f_flags; << 146 }; << 147 << 148 int statvfs(const char *path, struct statvfs * << 149 __attribute__ ((alias("_sos_statvfs"))); << 150 << 151 #define O_EXCL (1 << 0) << 152 #define O_CREAT (1 << 1) << 153 #define O_NOFOLLOW (1 << 2) << 154 #define O_DIRECTORY (1 << 3) /* Incompatible w << 155 #define O_SYNC (1 << 4) << 156 << 157 #define O_RDONLY (1 << 16) << 158 #define O_WRONLY (1 << 17) << 159 #define O_RDWR (O_RDONLY | O_WRONLY) << 160 << 161 /** << 162 * FS access rights. Same as in kernel fs.h << 163 */ << 164 #define S_IRUSR 00400 << 165 #define S_IWUSR 00200 << 166 #define S_IXUSR 00100 << 167 #define S_IRWXALL 07777 /* For symlinks */ << 168 << 169 int open(const char *pathname, int flags, /* m << 170 << 171 int close(int fd) << 172 __attribute__ ((alias("_sos_close"))); << 173 << 174 int read(int fd, char * buf, size_t len); << 175 int write(int fd, const char * buf, size_t len << 176 << 177 /* Same as sos_seek_whence_t in kernel fs.h */ << 178 #define SEEK_SET 42 << 179 #define SEEK_CUR 24 << 180 #define SEEK_END 84 << 181 off_t lseek(int fd, off_t offset, int whence); << 182 loff_t lseek64(int fd, loff_t offset, int when << 183 void * mmap(void *start, size_t length, int pr << 184 int fd, loff_t offset); << 185 int ftruncate(int fd, off_t length); << 186 int ftruncate64(int fd, loff_t length) << 187 __attribute__ ((alias("_sos_ftruncate64") << 188 int fcntl(int fd, int cmd, int arg) << 189 __attribute__ ((alias("_sos_fcntl"))); << 190 << 191 int creat(const char *pathname, mode_t mode) << 192 __attribute__ ((alias("_sos_creat"))); << 193 int link (const char *oldpath, const char *new << 194 __attribute__ ((alias("_sos_link"))); << 195 int unlink(const char *pathname) << 196 __attribute__ ((alias("_sos_unlink"))); << 197 int rename(const char *oldpath, const char *ne << 198 __attribute__ ((alias("_sos_rename"))); << 199 int symlink(const char *target, const char *pa << 200 __attribute__ ((alias("_sos_symlink"))); << 201 << 202 int mkdir(const char *pathname, mode_t mode) << 203 __attribute__ ((alias("_sos_mkdir"))); << 204 int rmdir(const char *pathname) << 205 __attribute__ ((alias("_sos_rmdir"))); << 206 << 207 int chmod(const char *path, mode_t mode) << 208 __attribute__ ((alias("_sos_chmod"))); << 209 << 210 struct dirent << 211 { << 212 unsigned long long int storage_location; << 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 << 219 unsigned int type; << 220 unsigned short namelen; << 221 << 222 #define SOS_FS_DIRENT_NAME_MAXLEN 128 << 223 char name[SOS_FS_DIRENT_NAME_MAXLEN]; << 224 }; << 225 << 226 /* Forward declaration (defined in libc.c) */ << 227 struct sos_DIR_struct; << 228 #define DIR struct sos_DIR_struct << 229 << 230 DIR *opendir(const char *name); << 231 int dirfd(const DIR * dir); << 232 struct dirent *readdir(DIR *dir); << 233 int closedir(DIR *dir); << 234 << 235 struct stat << 236 { << 237 int st_type; << 238 unsigned long long int st_storage_location; << 239 int st_access_rights; << 240 unsigned int st_nlink; << 241 signed long long int st_size; << 242 }; << 243 << 244 int stat(const char *file_name, struct stat *b << 245 int lstat(const char *file_name, struct stat * << 246 << 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 << 255 034 256 #endif /* _SOS_USER_LIBC_H_ */ 035 #endif /* _SOS_USER_LIBC_H_ */
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