diff options
Diffstat (limited to 'nuttx/configs/stm3240g-eval/kernel/up_userspace.c')
| -rw-r--r-- | nuttx/configs/stm3240g-eval/kernel/up_userspace.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/nuttx/configs/stm3240g-eval/kernel/up_userspace.c b/nuttx/configs/stm3240g-eval/kernel/up_userspace.c new file mode 100644 index 000000000..4fe12a907 --- /dev/null +++ b/nuttx/configs/stm3240g-eval/kernel/up_userspace.c @@ -0,0 +1,142 @@ +/**************************************************************************** + * configs/stm3240g-eval/kernel/up_userspace.c + * + * Copyright (C) 2013 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/userspace.h> +#include <nuttx/wqueue.h> +#include <nuttx/mm.h> + +#if defined(CONFIG_NUTTX_KERNEL) && !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 declareion 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 recoved 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, + + /* 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 + + /* Memory manager entry points (declared in include/nuttx/mm.h) */ + + .mm_initialize = umm_initialize, + .mm_addregion = umm_addregion, + .mm_trysemaphore = umm_trysemaphore, + .mm_givesemaphore = umm_givesemaphore, + + /* Memory manager entry points (declared in include/stdlib.h) */ + + .mm_malloc = malloc, + .mm_realloc = realloc, + .mm_zalloc = zalloc, + .mm_free = free, + + /* User-space work queue support (declared in include/nuttx/wqueue.h) */ + +#if defined(CONFIG_SCHED_WORKQUEUE) && defined(CONFIG_SCHED_USRWORK) + .work_usrstart = work_usrstart, +#endif +}; + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +#endif /* CONFIG_NUTTX_KERNEL && !__KERNEL__ */ |