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53 lines
1.6 KiB
53 lines
1.6 KiB
/* |
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* Copyright (C) 2015 Eistec AB |
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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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/** |
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* @ingroup test |
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* @{ |
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* |
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* @file |
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* @brief Minimal test application for triggering a hard fault or equivalent |
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* |
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* @author Joakim Gebart <joakim.gebart@eistec.se> |
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* |
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* @} |
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*/ |
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#include <stdio.h> |
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#include <xtimer.h> |
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#ifndef FORBIDDEN_ADDRESS |
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/* Many platforms do not allow writes to address 0x00000000 */ |
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#define FORBIDDEN_ADDRESS (0x00000000) |
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#endif /* !defined(FORBIDDEN_ADDRESS) */ |
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#ifndef INVALID_INSTRUCTION |
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/* Random garbage may crash the program as well. */ |
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#define INVALID_INSTRUCTION __asm__ volatile (".short 0xdead, 0xbeef, 0xcafe, 0xbabe\n") |
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#endif /* !defined(INVALID_INSTRUCTION) */ |
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#define PRINT_MACRO(a) PRINT_MACRO2(a) |
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#define PRINT_MACRO2(a) #a |
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int main(void) |
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{ |
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puts("Fault handler test application"); |
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printf("This application will crash by attempting to write to address 0x%08x\n", FORBIDDEN_ADDRESS); |
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puts("Waiting 1 second before crashing..."); |
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xtimer_usleep(1000000); |
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puts("Write to forbidden address " PRINT_MACRO(FORBIDDEN_ADDRESS)); |
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*((volatile int *) FORBIDDEN_ADDRESS) = 12345; |
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int readback = *((volatile int *) FORBIDDEN_ADDRESS); |
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printf("readback: 0x%08x\n", readback); |
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puts("We did not expect the application to survive the previous write."); |
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puts("Trying to execute an invalid instruction"); |
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puts(PRINT_MACRO(INVALID_INSTRUCTION)); |
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INVALID_INSTRUCTION; |
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puts("Failed to crash the program, hanging..."); |
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while(1); |
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return 0; |
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}
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