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getMaxUsedStack() - stack usage reseach mini progress

This commit is contained in:
rusefi 2019-02-12 18:47:16 -05:00
parent b13da10a67
commit 6e57cae396
3 changed files with 18 additions and 0 deletions
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1
firmware/global.h
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@ -101,6 +101,7 @@ typedef unsigned int time_t;
/* /*
* Stack debugging * Stack debugging
* See also getMaxUsedStack()
*/ */
int getRemainingStack(thread_t *otp); int getRemainingStack(thread_t *otp);

13
firmware/util/efilib2.cpp
View File

@ -39,3 +39,16 @@ efitime_t Overflow64Counter::update(uint32_t value) {
return state.highBits + state.lowBits; return state.highBits + state.lowBits;
} }
#endif #endif
int getMaxUsedStack(uint8_t *ptr, int size) {
/**
* maximum used stack size total stack buffer size minus position of first modified byte
*/
int used = 0;
for (int i = 0; i < size; i++) {
if (ptr[i] != CH_DBG_STACK_FILL_VALUE) {
return size - i;
}
}
return 0;
}

4
firmware/util/efilib2.h
View File

@ -17,6 +17,10 @@ typedef struct {
} State64; } State64;
void updateAndSet(State64 *state, uint32_t value); void updateAndSet(State64 *state, uint32_t value);
/**
* @return for a given stack memory region returns how much stack was ever used
*/
int getMaxUsedStack(uint8_t *ptr, int size);
class Overflow64Counter class Overflow64Counter
{ {