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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) __attribute__((noreturn 033 void exit (int status) __attribute__((noreturn, alias("_sos_exit"))); 034 034 035 << 036 /** << 037 * Function to duplicate the current running p << 038 */ << 039 pid_t fork(void) __attribute__ ((alias("_sos_ << 040 << 041 << 042 /** << 043 * Function to re-initialize the address space << 044 * with that of the program 'progname' << 045 */ << 046 int exec(const char *progname) __attribute__ ( << 047 << 048 << 049 /** << 050 * These flags (for mmap API) MUST be consiste << 051 * paging.h and umem_vmm.h << 052 */ << 053 #define PROT_NONE 0 << 054 #define PROT_READ (1<<0) << 055 #define PROT_WRITE (1<<1) << 056 #define PROT_EXEC (1<<2) /* Not supported on << 057 << 058 #define MAP_SHARED (1 << 0) << 059 #define MAP_FIXED (1 << 31) << 060 << 061 /** << 062 * Non standard version of mmap. Differences w << 063 * - the resource to map is given by its "pat << 064 * - the offset is a signed 64bits, and MUST << 065 * - no errno support << 066 */ << 067 void * mmap(void *start, size_t length, int pr << 068 const char *path, loff_t offset); << 069 << 070 << 071 /** << 072 * Unmap the given user address interval << 073 */ << 074 int munmap(void * start, size_t length) __attr << 075 << 076 << 077 /** << 078 * Change the access permissions of the given << 079 */ << 080 int mprotect(const void *addr, size_t len, int << 081 << 082 << 083 << 084 /** << 085 * This flag tells mremap that the underlying << 086 */ << 087 #define MREMAP_MAYMOVE (1 << 30) << 088 << 089 /** << 090 * Grow/shrink the end of the given mapping << 091 */ << 092 void * mremap(void * old_addr, size_t old_len, << 093 size_t new_len, << 094 unsigned long flags); << 095 << 096 << 097 /** << 098 * Standard heap management API << 099 */ << 100 << 101 /** @note MT UNSAFE */ << 102 int brk(void *end_data_seg); << 103 << 104 /** @note MT UNSAFE */ << 105 void *sbrk(ptrdiff_t increment); << 106 << 107 /** @note MT UNSAFE */ << 108 void * calloc (size_t nmemb, size_t size); << 109 << 110 /** @note MT UNSAFE */ << 111 void * malloc (size_t size); << 112 << 113 << 114 #endif /* _SOS_USER_LIBC_H_ */ 035 #endif /* _SOS_USER_LIBC_H_ */
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