diff --git a/components/libc/compilers/armlibc/sys/mman.h b/components/libc/compilers/armlibc/sys/mman.h new file mode 100644 index 000000000..024a64e91 --- /dev/null +++ b/components/libc/compilers/armlibc/sys/mman.h @@ -0,0 +1,72 @@ +/* + * File : mman.h + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2017, RT-Thread Development Team + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Change Logs: + * Date Author Notes + * 2017/11/30 Bernard The first version. + */ + +#ifndef _SYS_MMAN_H +#define _SYS_MMAN_H + +#ifdef __cplusplus +extern "C" { +#endif + +#define MAP_FAILED ((void *) -1) + +#define MAP_SHARED 0x01 +#define MAP_PRIVATE 0x02 +#define MAP_TYPE 0x0f +#define MAP_FIXED 0x10 +#define MAP_ANON 0x20 +#define MAP_ANONYMOUS MAP_ANON +#define MAP_NORESERVE 0x4000 +#define MAP_GROWSDOWN 0x0100 +#define MAP_DENYWRITE 0x0800 +#define MAP_EXECUTABLE 0x1000 +#define MAP_LOCKED 0x2000 +#define MAP_POPULATE 0x8000 +#define MAP_NONBLOCK 0x10000 +#define MAP_STACK 0x20000 +#define MAP_HUGETLB 0x40000 +#define MAP_FILE 0 + +#define PROT_NONE 0 +#define PROT_READ 1 +#define PROT_WRITE 2 +#define PROT_EXEC 4 +#define PROT_GROWSDOWN 0x01000000 +#define PROT_GROWSUP 0x02000000 + +#define MS_ASYNC 1 +#define MS_INVALIDATE 2 +#define MS_SYNC 4 + +#define MCL_CURRENT 1 +#define MCL_FUTURE 2 +#define MCL_ONFAULT 4 + +void *mmap (void *start, size_t len, int prot, int flags, int fd, off_t off); +int munmap (void *start, size_t len); + +#ifdef __cplusplus +} +#endif +#endif diff --git a/components/libc/compilers/dlib/sys/mman.h b/components/libc/compilers/dlib/sys/mman.h new file mode 100644 index 000000000..024a64e91 --- /dev/null +++ b/components/libc/compilers/dlib/sys/mman.h @@ -0,0 +1,72 @@ +/* + * File : mman.h + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2017, RT-Thread Development Team + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Change Logs: + * Date Author Notes + * 2017/11/30 Bernard The first version. + */ + +#ifndef _SYS_MMAN_H +#define _SYS_MMAN_H + +#ifdef __cplusplus +extern "C" { +#endif + +#define MAP_FAILED ((void *) -1) + +#define MAP_SHARED 0x01 +#define MAP_PRIVATE 0x02 +#define MAP_TYPE 0x0f +#define MAP_FIXED 0x10 +#define MAP_ANON 0x20 +#define MAP_ANONYMOUS MAP_ANON +#define MAP_NORESERVE 0x4000 +#define MAP_GROWSDOWN 0x0100 +#define MAP_DENYWRITE 0x0800 +#define MAP_EXECUTABLE 0x1000 +#define MAP_LOCKED 0x2000 +#define MAP_POPULATE 0x8000 +#define MAP_NONBLOCK 0x10000 +#define MAP_STACK 0x20000 +#define MAP_HUGETLB 0x40000 +#define MAP_FILE 0 + +#define PROT_NONE 0 +#define PROT_READ 1 +#define PROT_WRITE 2 +#define PROT_EXEC 4 +#define PROT_GROWSDOWN 0x01000000 +#define PROT_GROWSUP 0x02000000 + +#define MS_ASYNC 1 +#define MS_INVALIDATE 2 +#define MS_SYNC 4 + +#define MCL_CURRENT 1 +#define MCL_FUTURE 2 +#define MCL_ONFAULT 4 + +void *mmap (void *start, size_t len, int prot, int flags, int fd, off_t off); +int munmap (void *start, size_t len); + +#ifdef __cplusplus +} +#endif +#endif diff --git a/components/libc/compilers/minilibc/sys/mman.h b/components/libc/compilers/minilibc/sys/mman.h new file mode 100644 index 000000000..024a64e91 --- /dev/null +++ b/components/libc/compilers/minilibc/sys/mman.h @@ -0,0 +1,72 @@ +/* + * File : mman.h + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2017, RT-Thread Development Team + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Change Logs: + * Date Author Notes + * 2017/11/30 Bernard The first version. + */ + +#ifndef _SYS_MMAN_H +#define _SYS_MMAN_H + +#ifdef __cplusplus +extern "C" { +#endif + +#define MAP_FAILED ((void *) -1) + +#define MAP_SHARED 0x01 +#define MAP_PRIVATE 0x02 +#define MAP_TYPE 0x0f +#define MAP_FIXED 0x10 +#define MAP_ANON 0x20 +#define MAP_ANONYMOUS MAP_ANON +#define MAP_NORESERVE 0x4000 +#define MAP_GROWSDOWN 0x0100 +#define MAP_DENYWRITE 0x0800 +#define MAP_EXECUTABLE 0x1000 +#define MAP_LOCKED 0x2000 +#define MAP_POPULATE 0x8000 +#define MAP_NONBLOCK 0x10000 +#define MAP_STACK 0x20000 +#define MAP_HUGETLB 0x40000 +#define MAP_FILE 0 + +#define PROT_NONE 0 +#define PROT_READ 1 +#define PROT_WRITE 2 +#define PROT_EXEC 4 +#define PROT_GROWSDOWN 0x01000000 +#define PROT_GROWSUP 0x02000000 + +#define MS_ASYNC 1 +#define MS_INVALIDATE 2 +#define MS_SYNC 4 + +#define MCL_CURRENT 1 +#define MCL_FUTURE 2 +#define MCL_ONFAULT 4 + +void *mmap (void *start, size_t len, int prot, int flags, int fd, off_t off); +int munmap (void *start, size_t len); + +#ifdef __cplusplus +} +#endif +#endif diff --git a/components/libc/compilers/newlib/sys/mman.h b/components/libc/compilers/newlib/sys/mman.h new file mode 100644 index 000000000..024a64e91 --- /dev/null +++ b/components/libc/compilers/newlib/sys/mman.h @@ -0,0 +1,72 @@ +/* + * File : mman.h + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2017, RT-Thread Development Team + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Change Logs: + * Date Author Notes + * 2017/11/30 Bernard The first version. + */ + +#ifndef _SYS_MMAN_H +#define _SYS_MMAN_H + +#ifdef __cplusplus +extern "C" { +#endif + +#define MAP_FAILED ((void *) -1) + +#define MAP_SHARED 0x01 +#define MAP_PRIVATE 0x02 +#define MAP_TYPE 0x0f +#define MAP_FIXED 0x10 +#define MAP_ANON 0x20 +#define MAP_ANONYMOUS MAP_ANON +#define MAP_NORESERVE 0x4000 +#define MAP_GROWSDOWN 0x0100 +#define MAP_DENYWRITE 0x0800 +#define MAP_EXECUTABLE 0x1000 +#define MAP_LOCKED 0x2000 +#define MAP_POPULATE 0x8000 +#define MAP_NONBLOCK 0x10000 +#define MAP_STACK 0x20000 +#define MAP_HUGETLB 0x40000 +#define MAP_FILE 0 + +#define PROT_NONE 0 +#define PROT_READ 1 +#define PROT_WRITE 2 +#define PROT_EXEC 4 +#define PROT_GROWSDOWN 0x01000000 +#define PROT_GROWSUP 0x02000000 + +#define MS_ASYNC 1 +#define MS_INVALIDATE 2 +#define MS_SYNC 4 + +#define MCL_CURRENT 1 +#define MCL_FUTURE 2 +#define MCL_ONFAULT 4 + +void *mmap (void *start, size_t len, int prot, int flags, int fd, off_t off); +int munmap (void *start, size_t len); + +#ifdef __cplusplus +} +#endif +#endif diff --git a/components/libc/mmap/SConscript b/components/libc/mmap/SConscript new file mode 100644 index 000000000..1a36a1571 --- /dev/null +++ b/components/libc/mmap/SConscript @@ -0,0 +1,13 @@ +# RT-Thread building script for component + +from building import * + +cwd = GetCurrentDir() +src = Glob('*.c') + Glob('*.cpp') +CPPPATH = [cwd] + +group = DefineGroup('libc', src, + depend = ['RT_USING_DFS', 'RT_USING_POSIX_MMAP'], + CPPPATH = CPPPATH) + +Return('group') diff --git a/components/libc/mmap/posix_mmap.c b/components/libc/mmap/posix_mmap.c new file mode 100644 index 000000000..8e70678c2 --- /dev/null +++ b/components/libc/mmap/posix_mmap.c @@ -0,0 +1,81 @@ +/* + * File : posix_mmap.c + * This file is part of RT-Thread RTOS + * COPYRIGHT (C) 2017, RT-Thread Development Team + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Change Logs: + * Date Author Notes + * 2017/11/30 Bernard The first version. + */ + +#include +#include + +#include +#include + +#include + +void *mmap(void *addr, size_t length, int prot, int flags, + int fd, off_t offset) +{ + uint8_t *mem; + + if (addr) + { + mem = addr; + } + else mem = (uint8_t *)malloc(length); + + if (mem) + { + off_t cur; + size_t read_bytes; + + cur = lseek(fd, 0, SEEK_SET); + + lseek(fd, offset, SEEK_SET); + read_bytes = read(fd, addr, length); + if (read_bytes != length) + { + if (addr == RT_NULL) + { + /* read failed */ + free(mem); + mem = RT_NULL; + } + } + lseek(fd, cur, SEEK_SET); + + return mem; + } + + errno = ENOMEM; + + return MAP_FAILED; +} + +int munmap(void *addr, size_t length) +{ + if (addr) + { + free(addr); + return 0; + } + + return -1; +}