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// license:BSD-3-Clause
// copyright-holders:Nicola Salmoria, Aaron Giles
/*********************************************************************
debugger.c
Front-end debugger interfaces.
*********************************************************************/
#include "emu.h"
#include "debugger.h"
#include "osdepend.h"
#include "debug/debugcpu.h"
#include "debug/debugcmd.h"
#include "debug/debugcon.h"
#include "debug/debugvw.h"
#include <ctype.h>
/***************************************************************************
GLOBAL VARIABLES
***************************************************************************/
static running_machine *g_machine = nullptr;
static bool g_atexit_registered = false;
/*-------------------------------------------------
debugger_instruction_hook - CPU cores call
this once per instruction from CPU cores
-------------------------------------------------*/
void debugger_instruction_hook(device_t *device, offs_t curpc)
{
#ifndef MAME_DEBUG_FAST
if ((device->machine().debug_flags & DEBUG_FLAG_CALL_HOOK) != 0)
device->debug()->instruction_hook(curpc);
#endif
}
/*-------------------------------------------------
debugger_exception_hook - CPU cores call this
anytime an exception is generated
-------------------------------------------------*/
void debugger_exception_hook(device_t *device, int exception)
{
if ((device->machine().debug_flags & DEBUG_FLAG_ENABLED) != 0)
device->debug()->exception_hook(exception);
}
/*-------------------------------------------------
debugger_start_cpu_hook - the CPU execution
system calls this hook before beginning
execution for the given CPU
-------------------------------------------------*/
void debugger_start_cpu_hook(device_t *device, const attotime &endtime)
{
if ((device->machine().debug_flags & DEBUG_FLAG_ENABLED) != 0)
device->debug()->start_hook(endtime);
}
/*-------------------------------------------------
debugger_stop_cpu_hook - the CPU execution
system calls this hook when ending execution
for the given CPU
-------------------------------------------------*/
void debugger_stop_cpu_hook(device_t *device)
{
if ((device->machine().debug_flags & DEBUG_FLAG_ENABLED) != 0)
device->debug()->stop_hook();
}
/*-------------------------------------------------
debugger_interrupt_hook - the CPU execution
system calls this hook when an interrupt is
acknowledged
-------------------------------------------------*/
void debugger_interrupt_hook(device_t *device, int irqline)
{
if ((device->machine().debug_flags & DEBUG_FLAG_ENABLED) != 0)
device->debug()->interrupt_hook(irqline);
}
/*-------------------------------------------------
debug_break - stop in the debugger at the next
opportunity
-------------------------------------------------*/
void debugger_manager::debug_break()
{
m_cpu->get_visible_cpu()->debug()->halt_on_next_instruction("Internal breakpoint\n");
}
/*-------------------------------------------------
within_instruction_hook - call this to
determine if the debugger is currently halted
within the instruction hook
-------------------------------------------------*/
bool debugger_manager::within_instruction_hook()
{
if ((m_machine.debug_flags & DEBUG_FLAG_ENABLED) != 0)
return m_cpu->within_instruction_hook();
return false;
}
//**************************************************************************
// DEBUGGER MANAGER
//**************************************************************************
//-------------------------------------------------
// debugger_manager - constructor
//-------------------------------------------------
debugger_manager::debugger_manager(running_machine &machine)
: m_machine(machine)
{
/* initialize the submodules */
m_cpu = std::make_unique<debugger_cpu>(machine);
m_console = std::make_unique<debugger_console>(machine);
m_commands = std::make_unique<debugger_commands>(machine, cpu(), console());
g_machine = &machine;
/* register an atexit handler if we haven't yet */
if (!g_atexit_registered)
atexit(debugger_flush_all_traces_on_abnormal_exit);
g_atexit_registered = true;
/* initialize osd debugger features */
machine.osd().init_debugger();
}
/*-------------------------------------------------
// debugger_manager - destructor
-------------------------------------------------*/
debugger_manager::~debugger_manager()
{
g_machine = nullptr;
}
/*-------------------------------------------------
refresh_display - redraw the current
video display
-------------------------------------------------*/
void debugger_manager::refresh_display()
{
machine().video().frame_update(true);
}
/*-------------------------------------------------
debugger_flush_all_traces_on_abnormal_exit -
flush any traces in the event of an aborted
execution
-------------------------------------------------*/
void debugger_flush_all_traces_on_abnormal_exit(void)
{
if(g_machine != nullptr)
{
g_machine->debugger().cpu().flush_traces();
}
}
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