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- /****************************************************************************
- * configs/stm32f769i-disco/kernel/stm32_userspace.c
- *
- * Copyright (C) 2015 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * 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 <nuttx/config.h>
- #include <stdlib.h>
- #include <nuttx/arch.h>
- #include <nuttx/mm/mm.h>
- #include <nuttx/wqueue.h>
- #include <nuttx/userspace.h>
- #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 != 0x08020000
- # error "CONFIG_NUTTX_USERSPACE must be 0x08020000 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 uint32_t _stext; /* Start of .text */
- extern uint32_t _etext; /* End_1 of .text + .rodata */
- extern const uint32_t _eronly; /* End+1 of read only section (.text + .rodata) */
- extern uint32_t _sdata; /* Start of .data */
- extern uint32_t _edata; /* End+1 of .data */
- extern uint32_t _sbss; /* Start of .bss */
- extern uint32_t _ebss; /* End+1 of .bss */
- /* This is the user space entry point */
- int CONFIG_USER_ENTRYPOINT(int argc, char *argv[]);
- const struct userspace_s userspace __attribute__ ((section (".userspace"))) =
- {
- /* General memory map */
- .us_entrypoint = (main_t)CONFIG_USER_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 = task_startup,
- #ifndef CONFIG_DISABLE_PTHREAD
- .pthread_startup = pthread_startup,
- #endif
- /* Signal handler trampoline */
- #ifndef CONFIG_DISABLE_SIGNALS
- .signal_handler = up_signal_handler,
- #endif
- /* User-space work queue support (declared in include/nuttx/wqueue.h) */
- #ifdef CONFIG_LIB_USRWORK
- .work_usrstart = work_usrstart,
- #endif
- };
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- #endif /* CONFIG_BUILD_PROTECTED && !__KERNEL__ */
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