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thermopshere: refactor & fix single-stepping code

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TuxSH
2019-08-05 04:46:11 +02:00
parent 731d50a3a3
commit 5081174d27
6 changed files with 61 additions and 24 deletions
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12
thermosphere/src/single_step.h
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@@ -19,8 +19,16 @@
#include "utils.h"
#include "exceptions.h"
void enableSingleStepExceptions(void);
typedef enum SingleStepState {
SingleStepState_Inactive = 0, // Single step disabled OR in the debugger
SingleStepState_ActivePending = 1, // Instruction not yet executed
SingleStepState_ActiveNotPending = 2, // Instruction executed, single-step exception is going to be generated soon
} SingleStepState;
void setSingleStep(ExceptionStackFrame *frame, bool singleStep);
/// Get the single-step state machine state (state after eret)
SingleStepState singleStepGetNextState(ExceptionStackFrame *frame);
/// Set the single-step state machine state (state after eret). Frame can be NULL iff new state is "inactive"
void singleStepSetNextState(ExceptionStackFrame *frame, SingleStepState state);
void handleSingleStep(ExceptionStackFrame *frame, ExceptionSyndromeRegister esr);