/**************************************************************************** * boards/arm/stm32f7/stm32f777zit6-meadow/kernel/stm32_userspace.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #if defined(CONFIG_BUILD_PROTECTED) && !defined(__KERNEL__) /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Configuration ************************************************************/ #ifndef CONFIG_NUTTX_USERSPACE # error "CONFIG_NUTTX_USERSPACE not defined" #endif #if CONFIG_NUTTX_USERSPACE != 0x08040000 # error "CONFIG_NUTTX_USERSPACE must be 0x08040000 to match memory.ld" #endif /**************************************************************************** * Public Data ****************************************************************************/ /* These 'addresses' of these values are setup by the linker script. * They are not actual uint32_t storage locations! They are only used * meaningfully in the following way: * * - The linker script defines, for example, the symbol_sdata. * - The declaration extern uint32_t _sdata; makes C happy. C will believe * that the value _sdata is the address of a uint32_t variable _data * (it is not!). * - We can recover the linker value then by simply taking the address of * of _data. like: uint32_t *pdata = &_sdata; */ extern uint8_t _stext[]; /* Start of .text */ extern uint8_t _etext[]; /* End_1 of .text + .rodata */ extern const uint8_t _eronly[]; /* End+1 of read only section (.text + .rodata) */ extern uint8_t _sdata[]; /* Start of .data */ extern uint8_t _edata[]; /* End+1 of .data */ extern uint8_t _sbss[]; /* Start of .bss */ extern uint8_t _ebss[]; /* End+1 of .bss */ const struct userspace_s userspace locate_data(".userspace") = { /* General memory map */ .us_entrypoint = CONFIG_INIT_ENTRYPOINT, .us_textstart = (uintptr_t)_stext, .us_textend = (uintptr_t)_etext, .us_datasource = (uintptr_t)_eronly, .us_datastart = (uintptr_t)_sdata, .us_dataend = (uintptr_t)_edata, .us_bssstart = (uintptr_t)_sbss, .us_bssend = (uintptr_t)_ebss, /* Memory manager heap structure */ .us_heap = &g_mmheap, /* Task/thread startup routines */ .task_startup = nxtask_startup, /* Signal handler trampoline */ .signal_handler = up_signal_handler, /* User-space work queue support (declared in include/nuttx/wqueue.h) */ #ifdef CONFIG_LIBC_USRWORK .work_usrstart = work_usrstart, #endif }; /**************************************************************************** * Public Functions ****************************************************************************/ #endif /* CONFIG_BUILD_PROTECTED && !__KERNEL__ */