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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_SHARED (1 << 0) 058 #define MAP_SHARED (1 << 0) 066 #define MAP_FIXED (1 << 31) 059 #define MAP_FIXED (1 << 31) 067 060 >> 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); >> 069 068 070 069 /** 071 /** 070 * Unmap the given user address interval 072 * Unmap the given user address interval 071 */ 073 */ 072 int munmap(void * start, size_t length); !! 074 int munmap(void * start, size_t length) __attribute__ ((alias("_sos_munmap"))); 073 075 074 076 075 /** 077 /** 076 * Change the access permissions of the given 078 * Change the access permissions of the given user address interval 077 */ 079 */ 078 int mprotect(const void *addr, size_t len, int !! 080 int mprotect(const void *addr, size_t len, int prot) __attribute__ ((alias("_sos_mprotect"))); >> 081 079 082 080 083 081 /** 084 /** 082 * This flag tells mremap that the underlying 085 * This flag tells mremap that the underlying VR may be moved, when necessary 083 */ 086 */ 084 #define MREMAP_MAYMOVE (1 << 30) 087 #define MREMAP_MAYMOVE (1 << 30) 085 088 086 /** 089 /** 087 * Grow/shrink the end of the given mapping 090 * Grow/shrink the end of the given mapping 088 */ 091 */ 089 void * mremap(void * old_addr, size_t old_len, 092 void * mremap(void * old_addr, size_t old_len, 090 size_t new_len, 093 size_t new_len, 091 unsigned long flags); 094 unsigned long flags); 092 095 093 096 094 /** 097 /** 095 * Standard heap management API 098 * Standard heap management API 096 */ 099 */ 097 100 098 /** @note MT UNSAFE */ 101 /** @note MT UNSAFE */ 099 int brk(void *end_data_seg); 102 int brk(void *end_data_seg); 100 103 101 /** @note MT UNSAFE */ 104 /** @note MT UNSAFE */ 102 void *sbrk(ptrdiff_t increment); 105 void *sbrk(ptrdiff_t increment); 103 106 104 /** @note MT UNSAFE */ 107 /** @note MT UNSAFE */ 105 void * calloc (size_t nmemb, size_t size); 108 void * calloc (size_t nmemb, size_t size); 106 109 107 /** @note MT UNSAFE */ 110 /** @note MT UNSAFE */ 108 void * malloc (size_t size); 111 void * malloc (size_t size); 109 112 110 /** @note Does nothing (not implemented yet) * << 111 void free(void *ptr); << 112 << 113 << 114 /* << 115 * Filesystem subsystem << 116 */ << 117 << 118 int mount(const char *source, const char *targ << 119 const char *filesystemtype, unsigned << 120 const char *data); << 121 << 122 << 123 int umount(const char *target); << 124 << 125 << 126 void sync(void); << 127 << 128 << 129 struct statvfs << 130 { << 131 unsigned int f_rdev_major; << 132 unsigned int f_rdev_minor; << 133 size_t f_sz_total; /**< Total size * << 134 size_t f_sz_free; /**< Size left on << 135 unsigned int f_node_total;/**< Total alloca << 136 unsigned int f_node_avail;/**< Number of av << 137 unsigned int f_flags; << 138 }; << 139 << 140 int statvfs(const char *path, struct statvfs * << 141 << 142 << 143 #define O_EXCL (1 << 0) << 144 #define O_CREAT (1 << 1) << 145 #define O_TRUNC (1 << 2) << 146 #define O_NOFOLLOW (1 << 3) << 147 #define O_DIRECTORY (1 << 4) /* Incompatible w << 148 #define O_SYNC (1 << 5) << 149 << 150 #define O_RDONLY (1 << 16) << 151 #define O_WRONLY (1 << 17) << 152 #define O_RDWR (O_RDONLY | O_WRONLY) << 153 << 154 /** << 155 * FS access rights. Same as in kernel fs.h << 156 */ << 157 #define S_IRUSR 00400 << 158 #define S_IWUSR 00200 << 159 #define S_IXUSR 00100 << 160 #define S_IRWXALL 07777 /* For symlinks */ << 161 << 162 int open(const char *pathname, int flags, /* m << 163 << 164 int close(int fd); << 165 << 166 << 167 int read(int fd, char * buf, size_t len); << 168 int write(int fd, const char * buf, size_t len << 169 << 170 /* Same as sos_seek_whence_t in kernel fs.h */ << 171 #define SEEK_SET 42 << 172 #define SEEK_CUR 24 << 173 #define SEEK_END 84 << 174 off_t lseek(int fd, off_t offset, int whence); << 175 loff_t lseek64(int fd, loff_t offset, int when << 176 void * mmap(void *start, size_t length, int pr << 177 int fd, loff_t offset); << 178 int ftruncate(int fd, off_t length); << 179 int ftruncate64(int fd, loff_t length); << 180 int fcntl(int fd, int cmd, int arg); << 181 int ioctl(int fd, int cmd, int arg); << 182 << 183 int creat(const char *pathname, mode_t mode); << 184 int link (const char *oldpath, const char *new << 185 int unlink(const char *pathname); << 186 int rename(const char *oldpath, const char *ne << 187 int symlink(const char *target, const char *pa << 188 << 189 /* Same as sos_fs_node_type_t in kernel fs.h * << 190 #define S_IFREG 0x42 << 191 #define S_IFDIR 0x24 << 192 #define S_IFLNK 0x84 << 193 #define S_IFCHR 0x48 << 194 int mknod(const char *pathname, mode_t mode, << 195 int type, << 196 unsigned int major, unsigned minor); << 197 << 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 << 207 << 208 struct dirent << 209 { << 210 unsigned long long int storage_location; << 211 unsigned long long int offset_in_dirfile; << 212 unsigned int type; << 213 unsigned short namelen; << 214 << 215 #define SOS_FS_DIRENT_NAME_MAXLEN 128 << 216 char name[SOS_FS_DIRENT_NAME_MAXLEN]; << 217 }; << 218 << 219 /* Forward declaration (defined in libc.c) */ << 220 struct sos_DIR_struct; << 221 #define DIR struct sos_DIR_struct << 222 << 223 DIR *opendir(const char *name); << 224 int dirfd(const DIR * dir); << 225 struct dirent *readdir(DIR *dir); << 226 int closedir(DIR *dir); << 227 << 228 struct stat << 229 { << 230 unsigned int st_rdev_major; << 231 unsigned int st_rdev_minor; << 232 int st_type; << 233 unsigned long long int st_storage_location; << 234 int st_access_rights; << 235 unsigned int st_nlink; << 236 signed long long int st_size; << 237 }; << 238 << 239 int stat(const char *file_name, struct stat *b << 240 int lstat(const char *file_name, struct stat * << 241 int chroot(const char *path); << 242 int chdir(const char *path); << 243 int fchdir(int fd); << 244 << 245 int printf(const char *, ...); << 246 113 247 #endif /* _SOS_USER_LIBC_H_ */ 114 #endif /* _SOS_USER_LIBC_H_ */
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