diff --git a/mm/umm_heap/umm_globals.c b/mm/umm_heap/umm_globals.c new file mode 100644 index 0000000000..8242769c0c --- /dev/null +++ b/mm/umm_heap/umm_globals.c @@ -0,0 +1,68 @@ +/************************************************************************ + * mm/umm_heap/umm_globals.c + * + * Copyright (C) 2015 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ************************************************************************/ + +/************************************************************************ + * Included Files + ************************************************************************/ + +#include + +#include + +#include "umm_heap/umm_heap.h" + +/************************************************************************ + * Public Data + ************************************************************************/ + +#if defined(CONFIG_ARCH_ADDRENV) && defined(CONFIG_BUILD_KERNEL) +/* In the kernel build, there a multiple user heaps; one for each task + * group. In this build configuration, the user heap structure lies + * in a reserved region at the beginning of the .bss/.data address + * space (CONFIG_ARCH_DATA_VBASE). The size of that region is given by + * ARCH_DATA_RESERVE_SIZE + */ + +#elif defined(CONFIG_BUILD_PROTECTED) && defined(__KERNEL__) +/* In the protected mode, there are two heaps: A kernel heap and a single + * user heap. In that case the user heap structure lies in the user space + * (with a reference in the userspace interface). + */ + +#else +/* Otherwise, the user heap data structures are in common .bss */ + +struct mm_heap_s g_mmheap; +#endif diff --git a/mm/umm_heap/umm_heap.h b/mm/umm_heap/umm_heap.h new file mode 100644 index 0000000000..434267e2f5 --- /dev/null +++ b/mm/umm_heap/umm_heap.h @@ -0,0 +1,81 @@ +/**************************************************************************** + * mm/umm_heap/umm_heap.h + * + * Copyright (C) 2015 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __MM_UMM_HEAP_UMM_HEAP_H +#define __MM_UMM_HEAP_UMM_HEAP_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +#if defined(CONFIG_ARCH_ADDRENV) && defined(CONFIG_BUILD_KERNEL) +/* In the kernel build, there a multiple user heaps; one for each task + * group. In this build configuration, the user heap structure lies + * in a reserved region at the beginning of the .bss/.data address + * space (CONFIG_ARCH_DATA_VBASE). The size of that region is given by + * ARCH_DATA_RESERVE_SIZE + */ + +# include +# define USR_HEAP (&ARCH_DATA_RESERVE->ar_usrheap) + +#elif defined(CONFIG_BUILD_PROTECTED) && defined(__KERNEL__) +/* In the protected mode, there are two heaps: A kernel heap and a single + * user heap. Kernel code must obtain the address of the user heap data + * structure from the userspace interface. + */ + +# include +# define USR_HEAP (USERSPACE->us_heap) + +#else +/* Otherwise, the user heap data structures are in common .bss */ + +# define USR_HEAP &g_mmheap +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +#endif /* __MM_UMM_HEAP_UMM_HEAP_H */