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Diffstat (limited to 'nuttx/arch/hc/src/m9s12/m9s12_assert.c')
| -rw-r--r-- | nuttx/arch/hc/src/m9s12/m9s12_assert.c | 337 |
1 files changed, 337 insertions, 0 deletions
diff --git a/nuttx/arch/hc/src/m9s12/m9s12_assert.c b/nuttx/arch/hc/src/m9s12/m9s12_assert.c new file mode 100644 index 000000000..7b167d183 --- /dev/null +++ b/nuttx/arch/hc/src/m9s12/m9s12_assert.c @@ -0,0 +1,337 @@ +/**************************************************************************** + * arch/hc/src/m9s12/m9s12_assert.c + * + * Copyright (C) 2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <stdint.h> +#include <stdlib.h> +#include <assert.h> +#include <debug.h> + +#include <nuttx/irq.h> +#include <nuttx/arch.h> +#include <arch/board/board.h> + +#include "up_arch.h" +#include "os_internal.h" +#include "up_internal.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* Output debug info if stack dump is selected -- even if + * debug is not selected. + */ + +#ifdef CONFIG_ARCH_STACKDUMP +# undef lldbg +# define lldbg lib_lowprintf +#endif + +/* The following is just intended to keep some ugliness out of the mainline + * code. We are going to print the task name if: + * + * CONFIG_TASK_NAME_SIZE > 0 && <-- The task has a name + * (defined(CONFIG_DEBUG) || <-- And the debug is enabled (lldbg used) + * defined(CONFIG_ARCH_STACKDUMP) <-- Or lib_lowprintf() is used + */ + +#undef CONFIG_PRINT_TASKNAME +#if CONFIG_TASK_NAME_SIZE > 0 && (defined(CONFIG_DEBUG) || defined(CONFIG_ARCH_STACKDUMP)) +# define CONFIG_PRINT_TASKNAME 1 +#endif + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_getsp + ****************************************************************************/ + +/* I don't know if the builtin to get SP is enabled */ + +static inline uint16_t up_getsp(void) +{ + uint16_t spval; + __asm__ + ( + "\tsts spval\n" + : "=A"(spval) : + ); + return spval; +} + +/**************************************************************************** + * Name: up_stackdump + ****************************************************************************/ + +#ifdef CONFIG_ARCH_STACKDUMP +static void up_stackdump(uint16_t sp, uint16_t stack_base) +{ + uint16_t stack; + + for (stack = sp; stack < stack_base; stack += 16) + { + uint8_t *ptr = (uint8_t*)stack; + lldbg("%04x: %02x %02x %02x %02x %02x %02x %02x %02x" + " %02x %02x %02x %02x %02x %02x %02x %02x\n", + stack, ptr[0], ptr[1], ptr[2], ptr[3], ptr[4], ptr[5], ptr[6], ptr[7], + ptr[8], ptr[9], ptr[10], ptr[11], ptr[12], ptr[13], ptr[14], ptr[15]); + } +} +#else +# define up_stackdump() +#endif + +/**************************************************************************** + * Name: up_registerdump + ****************************************************************************/ + +#ifdef CONFIG_ARCH_STACKDUMP +static inline void up_registerdump(void) +{ + /* Are user registers available from interrupt processing? */ + + if (current_regs) + { + lldbg("A:%02x B:%02x X:%02x%02x Y:%02x%02x PC:%02x%02x CCR:%02x\n", + current_regs[REG_A], current_regs[REG_B], current_regs[REG_XH], + current_regs[REG_XL], current_regs[REG_YH], current_regs[REG_YL], + current_regs[REG_PCH], current_regs[REG_PCL], current_regs[REG_CCR]); + lldbg("SP:%02x%02x FRAME:%02x%02x TMP:%02x%02x Z:%02x%02x XY:%02x\n", + current_regs[REG_SPH], current_regs[REG_SPL], + current_regs[REG_FRAMEH], current_regs[REG_FRAMEL], + current_regs[REG_TMPL], current_regs[REG_TMPH], current_regs[REG_ZL], + current_regs[REG_ZH], current_regs[REG_XY], current_regs[REG_XY+1]); + +#if CONFIG_HCS12_MSOFTREGS > 2 +# error "Need to save more registers" +#elif CONFIG_HCS12_MSOFTREGS == 2 + lldbg("SOFTREGS: %02x%02x :%02x%02x\n", + current_regs[REG_SOFTREG1], current_regs[REG_SOFTREG1+1], + current_regs[REG_SOFTREG2], current_regs[REG_SOFTREG2+1]); +#elif CONFIG_HCS12_MSOFTREGS == 1 + lldbg("SOFTREGS: %02x%02x\n", current_regs[REG_SOFTREG1], + current_regs[REG_SOFTREG1+1]); +#endif + +#ifndef CONFIG_HCS12_NONBANKED + lldbg("PPAGE: %02x\n", current_regs[REG_PPAGE],); +#endif + } +} +#else +# define up_registerdump() +#endif + +/**************************************************************************** + * Name: up_dumpstate + ****************************************************************************/ + +#ifdef CONFIG_ARCH_STACKDUMP +static void up_dumpstate(void) +{ + _TCB *rtcb = (_TCB*)g_readytorun.head; + uint16_t sp = up_getsp(); + uint16_t ustackbase; + uint16_t ustacksize; +#if CONFIG_ARCH_INTERRUPTSTACK > 3 + uint16_t istackbase; + uint16_t istacksize; +#endif + + /* Get the limits on the user stack memory */ + + if (rtcb->pid == 0) + { + ustackbase = g_heapbase - 4; + ustacksize = CONFIG_IDLETHREAD_STACKSIZE; + } + else + { + ustackbase = (uint16_t)rtcb->adj_stack_ptr; + ustacksize = (uint16_t)rtcb->adj_stack_size; + } + + /* Get the limits on the interrupt stack memory */ + +#if CONFIG_ARCH_INTERRUPTSTACK > 3 + istackbase = (uint16_t)&g_userstack; + istacksize = (CONFIG_ARCH_INTERRUPTSTACK & ~3) - 4; + + /* Show interrupt stack info */ + + lldbg("sp: %04x\n", sp); + lldbg("IRQ stack:\n"); + lldbg(" base: %04x\n", istackbase); + lldbg(" size: %04x\n", istacksize); + + /* Does the current stack pointer lie within the interrupt + * stack? + */ + + if (sp <= istackbase && sp > istackbase - istacksize) + { + /* Yes.. dump the interrupt stack */ + + up_stackdump(sp, istackbase); + + /* Extract the user stack pointer which should lie + * at the base of the interrupt stack. + */ + + sp = g_userstack; + lldbg("sp: %04x\n", sp); + } + + /* Show user stack info */ + + lldbg("User stack:\n"); + lldbg(" base: %04x\n", ustackbase); + lldbg(" size: %04x\n", ustacksize); +#else + lldbg("sp: %04x\n", sp); + lldbg("stack base: %04x\n", ustackbase); + lldbg("stack size: %04x\n", ustacksize); +#endif + + /* Dump the user stack if the stack pointer lies within the allocated user + * stack memory. + */ + + if (sp > ustackbase || sp <= ustackbase - ustacksize) + { +#if !defined(CONFIG_ARCH_INTERRUPTSTACK) || CONFIG_ARCH_INTERRUPTSTACK < 4 + lldbg("ERROR: Stack pointer is not within allocated stack\n"); +#endif + } + else + { + up_stackdump(sp, ustackbase); + } + + /* Then dump the registers (if available) */ + + up_registerdump(); +} +#else +# define up_dumpstate() +#endif + +/**************************************************************************** + * Name: _up_assert + ****************************************************************************/ + +static void _up_assert(int errorcode) /* __attribute__ ((noreturn)) */ +{ + /* Are we in an interrupt handler or the idle task? */ + + if (current_regs || ((_TCB*)g_readytorun.head)->pid == 0) + { + (void)irqsave(); + for(;;) + { +#ifdef CONFIG_ARCH_LEDS + up_ledon(LED_PANIC); + up_mdelay(250); + up_ledoff(LED_PANIC); + up_mdelay(250); +#endif + } + } + else + { + exit(errorcode); + } +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: up_assert + ****************************************************************************/ + +void up_assert(const uint8_t *filename, int lineno) +{ +#ifdef CONFIG_PRINT_TASKNAME + _TCB *rtcb = (_TCB*)g_readytorun.head; +#endif + + up_ledon(LED_ASSERTION); +#ifdef CONFIG_PRINT_TASKNAME + lldbg("Assertion failed at file:%s line: %d task: %s\n", + filename, lineno, rtcb->name); +#else + lldbg("Assertion failed at file:%s line: %d\n", + filename, lineno); +#endif + up_dumpstate(); + _up_assert(EXIT_FAILURE); +} + +/**************************************************************************** + * Name: up_assert_code + ****************************************************************************/ + +void up_assert_code(const uint8_t *filename, int lineno, int errorcode) +{ +#ifdef CONFIG_PRINT_TASKNAME + _TCB *rtcb = (_TCB*)g_readytorun.head; +#endif + + up_ledon(LED_ASSERTION); + +#ifdef CONFIG_PRINT_TASKNAME + lldbg("Assertion failed at file:%s line: %d task: %s error code: %d\n", + filename, lineno, rtcb->name, errorcode); +#else + lldbg("Assertion failed at file:%s line: %d error code: %d\n", + filename, lineno, errorcode); +#endif + up_dumpstate(); + _up_assert(errorcode); +} |