mirror of https://github.com/rusefi/rusefi.git
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
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* @file global_shared.h
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*
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* part of global.h which is shared between firmware and simulator
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* See also common_headers.h
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*
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* Dec 25, 2018
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* @author Andrey Belomutskiy, (c) 2012-2020
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*/
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#pragma once
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/**
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* The following obscurantism is a hack to reduce stack usage, maybe even a questionable performance
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* optimization.
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*
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* Of note is that interrupts are NOT serviced on the stack of the thread that was running when the
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* interrupt occurred. The only thing that happens on that thread's stack is that its registers are
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* pushed (by hardware) when an interrupt occurs, just before swapping the stack pointer out for the
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* main stack (currently 0x400=1024 bytes), where the ISR actually runs.
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* see also __main_stack_size__
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* see also __process_stack_size__
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*
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* see also http://www.chibios.org/dokuwiki/doku.php?id=chibios:kb:stacks
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*
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* In the firmware we are using 'extern *Engine' - in the firmware Engine is a signleton
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*
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* On the other hand, in order to have a meaningful unit test we are passing Engine * engine as a parameter
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*/
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#include "global.h"
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#include "engine_ptr.h"
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#define EXPECTED_REMAINING_STACK 128
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/*
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* Stack debugging
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*/
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EXTERNC int getRemainingStack(thread_t *otp);
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int CountFreeStackSpace(const void* wabase);
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void validateStack(const char*msg, obd_code_e code, int stackUnusedSize);
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