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39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/*
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* Copyright 2024 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "drivers/dbgserial.h"
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#include "system/reset.h"
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static void prv_hard_fault_handler_c(unsigned int *hardfault_args) {
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dbgserial_putstr("HARD FAULT");
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#ifdef NO_WATCHDOG
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__asm("bkpt\n");
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while (1) continue;
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#else
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system_hard_reset();
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#endif
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}
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void HardFault_Handler(void) {
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// Grab the stack pointer, shove it into a register and call
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// the c function above.
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__asm("tst lr, #4\n"
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"ite eq\n"
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"mrseq r0, msp\n"
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"mrsne r0, psp\n"
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"b %0\n" :: "i" (prv_hard_fault_handler_c));
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}
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