mirror of
https://github.com/RIOT-OS/RIOT.git
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121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
/*
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* Copyright 2016, Imagination Technologies Limited and/or its
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* affiliated group companies.
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#include <mips/hal.h>
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#include <mips/m32c0.h>
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#include <mips/regdef.h>
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#include <mips/asm.h>
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#include <stdio.h>
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#include <string.h>
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#include <assert.h>
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#include <malloc.h>
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#include "periph/uart.h"
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#include "periph/timer.h"
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#include "periph/init.h"
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#include "panic.h"
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#include "stdio_base.h"
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#include "kernel_init.h"
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#include "cpu.h"
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#include "board.h"
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void mips_start(void);
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extern void _fini(void);
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extern void atexit(void (*)(void));
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extern void _init(void);
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extern void exit(int);
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#ifdef FLASH_XIP
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extern char _rom_data_copy __attribute__((section("data")));
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extern char _fdata __attribute__((section("data")));
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extern char _edata __attribute__((section("data")));
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#endif
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/*
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* Note the mips toolchain crt expects to jump to main but RIOT wants the user
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* code to start at main for some perverse reason, but thankfully the crt
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* does provide this hook function which gets called fairly close to the jump
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* to main, thus if we finish off the job of the crt here and never returns
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* we can support this madness.
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*/
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void software_init_hook(void)
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{
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#ifdef FLASH_XIP
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/* copy initialized data from its LMA to VMA */
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memcpy(&_fdata, &_rom_data_copy, (int)&_edata - (int)&_fdata);
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#endif
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atexit(_fini);
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_init();
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mips_start();
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exit(-1);
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}
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void mips_start(void)
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{
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board_init();
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/* kernel_init */
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kernel_init();
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}
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void panic_arch(void)
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{
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printf("\nPANIC!\n");
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assert(0);
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while (1) {
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}
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}
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void cpu_init(void)
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{
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/* initialize stdio*/
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stdio_init();
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/* trigger static peripheral initialization */
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periph_init();
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}
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#ifdef MODULE_NEWLIB_SYSCALLS_DEFAULT
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void heap_stats(void)
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{
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puts("heap statistics are not supported for newlib_syscalls_default");
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}
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#else
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extern char _end[]; /* defined in linker script */
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void heap_stats(void)
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{
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void *ram_base;
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void *ram_extent;
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unsigned long heap_size;
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_get_ram_range (&ram_base, &ram_extent);
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/* If the _end symbol is within the RAM then use _end. */
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if ((void*)_end > ram_base && (void*)_end < ram_extent) {
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heap_size = ram_extent - (void*)_end;
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}
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else {
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heap_size = ram_extent - ram_base;
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}
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struct mallinfo minfo = mallinfo();
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printf("heap: %lu (used %lu, free %lu) [bytes]\n",
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heap_size, minfo.uordblks, heap_size - minfo.uordblks);
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}
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#endif
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