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https://github.com/simple64/simple64.git
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463 lines
14 KiB
C
463 lines
14 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Mupen64plus-core - api/debugger.c *
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* Mupen64Plus homepage: https://mupen64plus.org/ *
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* Copyright (C) 2009 Richard Goedeken *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/* This file contains the Core debugger functions which will be exported
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* outside of the core library.
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*/
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#include <stdlib.h>
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#define M64P_CORE_PROTOTYPES 1
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#include "callbacks.h"
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#include "debugger.h"
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#include "debugger/dbg_breakpoints.h"
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#include "debugger/dbg_debugger.h"
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#include "debugger/dbg_decoder.h"
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#include "debugger/dbg_memory.h"
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#include "device/device.h"
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#include "device/memory/memory.h"
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#include "device/r4300/r4300_core.h"
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#include "device/r4300/tlb.h"
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#include "m64p_debugger.h"
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#include "m64p_types.h"
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#include "main/main.h"
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unsigned int op;
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/* local variables */
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static void (*callback_ui_init)(void) = NULL;
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static void (*callback_ui_update)(unsigned int) = NULL;
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static void (*callback_ui_vi)(void) = NULL;
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static void (*callback_core_compare)(unsigned int) = NULL;
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static void (*callback_core_data_sync)(int, void *) = NULL;
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/* global Functions for use by the Core */
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int DebuggerCallbacksAreSet(void)
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{
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if (callback_ui_init != NULL && callback_ui_update != NULL && callback_ui_vi != NULL)
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return 1;
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else
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return 0;
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}
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void DebuggerCallback(eDbgCallbackType type, unsigned int param)
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{
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if (type == DEBUG_UI_INIT)
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{
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if (callback_ui_init != NULL)
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(*callback_ui_init)();
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}
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else if (type == DEBUG_UI_UPDATE)
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{
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if (callback_ui_update != NULL)
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(*callback_ui_update)(param);
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}
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else if (type == DEBUG_UI_VI)
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{
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if (callback_ui_vi != NULL)
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(*callback_ui_vi)();
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}
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}
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void CoreCompareCallback(void)
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{
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if (callback_core_compare != NULL)
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(*callback_core_compare)(op);
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}
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void CoreCompareDataSync(int length, void *ptr)
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{
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if (callback_core_data_sync != NULL)
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(*callback_core_data_sync)(length, ptr);
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}
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/* exported functions for use by the front-end User Interface */
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EXPORT m64p_error CALL DebugSetCoreCompare(void (*dbg_core_compare)(unsigned int), void (*dbg_core_data_sync)(int, void *))
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{
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callback_core_compare = dbg_core_compare;
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callback_core_data_sync = dbg_core_data_sync;
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return M64ERR_SUCCESS;
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}
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EXPORT m64p_error CALL DebugSetCallbacks(void (*dbg_frontend_init)(void), void (*dbg_frontend_update)(unsigned int pc), void (*dbg_frontend_vi)(void))
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{
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#ifdef DBG
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callback_ui_init = dbg_frontend_init;
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callback_ui_update = dbg_frontend_update;
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callback_ui_vi = dbg_frontend_vi;
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return M64ERR_SUCCESS;
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#else
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return M64ERR_UNSUPPORTED;
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#endif
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}
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EXPORT m64p_error CALL DebugSetRunState(m64p_dbg_runstate runstate)
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{
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#ifdef DBG
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g_dbg_runstate = runstate; /* in debugger/debugger.c */
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if (runstate == M64P_DBG_RUNSTATE_RUNNING)
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{
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/* clear out last breakpoint state when resuming */
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breakpointFlag = 0;
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breakpointAccessed = 0;
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}
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return M64ERR_SUCCESS;
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#else
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return M64ERR_UNSUPPORTED;
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#endif
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}
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EXPORT int CALL DebugGetState(m64p_dbg_state statenum)
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{
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#ifdef DBG
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switch (statenum)
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{
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case M64P_DBG_RUN_STATE:
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return g_dbg_runstate;
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case M64P_DBG_PREVIOUS_PC:
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return previousPC;
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case M64P_DBG_NUM_BREAKPOINTS:
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return g_NumBreakpoints;
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case M64P_DBG_CPU_DYNACORE:
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return get_r4300_emumode(&g_dev.r4300);
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case M64P_DBG_CPU_NEXT_INTERRUPT:
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return *r4300_cp0_next_interrupt(&g_dev.r4300.cp0);
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default:
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DebugMessage(M64MSG_WARNING, "Bug: invalid m64p_dbg_state input in DebugGetState()");
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return 0;
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}
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return 0;
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugGetState() called, but Debugger not supported in Core library");
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return 0;
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#endif
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}
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EXPORT m64p_error CALL DebugStep(void)
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{
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#ifdef DBG
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if (!g_DebuggerActive)
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return M64ERR_INVALID_STATE;
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debugger_step(); /* in debugger/debugger.c */
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return M64ERR_SUCCESS;
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#else
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return M64ERR_UNSUPPORTED;
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#endif
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}
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EXPORT void CALL DebugDecodeOp(unsigned int instruction, char *op, char *args, int pc)
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{
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#ifdef DBG
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r4300_decode_op(instruction, op, args, pc);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugDecodeOp() called, but Debugger not supported in Core library");
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#endif
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}
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EXPORT void * CALL DebugMemGetRecompInfo(m64p_dbg_mem_info recomp_type, unsigned int address, int index)
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{
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#ifdef DBG
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struct r4300_core* r4300 = &g_dev.r4300;
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switch (recomp_type)
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{
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case M64P_DBG_RECOMP_OPCODE:
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return get_recompiled_opcode(r4300, address, index);
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case M64P_DBG_RECOMP_ARGS:
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return get_recompiled_args(r4300, address, index);
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case M64P_DBG_RECOMP_ADDR:
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return get_recompiled_addr(r4300, address, index);
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default:
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemGetRecompInfo() called with invalid m64p_dbg_mem_info");
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return NULL;
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}
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemGetRecompInfo() called, but Debugger not supported in Core library");
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return NULL;
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#endif
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}
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EXPORT int CALL DebugMemGetMemInfo(m64p_dbg_mem_info mem_info_type, unsigned int address)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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struct r4300_core* r4300 = &dev->r4300;
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switch (mem_info_type)
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{
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case M64P_DBG_MEM_TYPE:
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return get_memory_type(&dev->mem, address);
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case M64P_DBG_MEM_FLAGS:
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return get_memory_flags(dev, address);
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case M64P_DBG_MEM_HAS_RECOMPILED:
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return get_has_recompiled(r4300, address);
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case M64P_DBG_MEM_NUM_RECOMPILED:
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return get_num_recompiled(r4300, address);
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default:
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemGetMemInfo() called with invalid m64p_dbg_mem_info");
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return 0;
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}
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemGetMemInfo() called, but Debugger not supported in Core library");
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return 0;
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#endif
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}
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EXPORT void * CALL DebugMemGetPointer(m64p_dbg_memptr_type mem_ptr_type)
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{
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switch (mem_ptr_type)
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{
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case M64P_DBG_PTR_RDRAM:
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return g_dev.rdram.dram;
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case M64P_DBG_PTR_PI_REG:
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return g_dev.pi.regs;
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case M64P_DBG_PTR_SI_REG:
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return g_dev.si.regs;
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case M64P_DBG_PTR_VI_REG:
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return g_dev.vi.regs;
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case M64P_DBG_PTR_RI_REG:
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return g_dev.ri.regs;
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case M64P_DBG_PTR_AI_REG:
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return g_dev.ai.regs;
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default:
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemGetPointer() called with invalid m64p_dbg_memptr_type");
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return NULL;
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}
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}
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EXPORT unsigned long long CALL DebugMemRead64(unsigned int address)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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if ((address & 3) == 0)
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return read_memory_64(dev, address);
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else
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return read_memory_64_unaligned(dev, address);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemRead64() called, but Debugger not supported in Core library");
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return 0LL;
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#endif
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}
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EXPORT unsigned int CALL DebugMemRead32(unsigned int address)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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if ((address & 3) == 0)
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return read_memory_32(dev, address);
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else
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return read_memory_32_unaligned(dev, address);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemRead32() called, but Debugger not supported in Core library");
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return 0;
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#endif
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}
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EXPORT unsigned short CALL DebugMemRead16(unsigned int address)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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return read_memory_16(dev, address);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemRead16() called, but Debugger not supported in Core library");
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return 0;
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#endif
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}
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EXPORT unsigned char CALL DebugMemRead8(unsigned int address)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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return read_memory_8(dev, address);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemRead8() called, but Debugger not supported in Core library");
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return 0;
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#endif
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}
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EXPORT void CALL DebugMemWrite64(unsigned int address, unsigned long long value)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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if ((address & 3) == 0)
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write_memory_64(dev, address, value);
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else
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write_memory_64_unaligned(dev, address, value);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemWrite64() called, but Debugger not supported in Core library");
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#endif
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}
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EXPORT void CALL DebugMemWrite32(unsigned int address, unsigned int value)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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if ((address & 3) == 0)
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write_memory_32(dev, address, value);
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else
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write_memory_32_unaligned(dev, address, value);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemWrite32() called, but Debugger not supported in Core library");
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#endif
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}
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EXPORT void CALL DebugMemWrite16(unsigned int address, unsigned short value)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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write_memory_16(dev, address, value);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemWrite16() called, but Debugger not supported in Core library");
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#endif
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}
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EXPORT void CALL DebugMemWrite8(unsigned int address, unsigned char value)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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write_memory_8(dev, address, value);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugMemWrite8() called, but Debugger not supported in Core library");
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#endif
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}
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EXPORT void * CALL DebugGetCPUDataPtr(m64p_dbg_cpu_data cpu_data_type)
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{
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struct device* dev = &g_dev;
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struct r4300_core* r4300 = &dev->r4300;
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cp1_reg *cp1_regs = r4300_cp1_regs(&r4300->cp1);
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switch (cpu_data_type)
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{
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case M64P_CPU_PC:
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return r4300_pc(r4300);
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case M64P_CPU_REG_REG:
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return r4300_regs(r4300);
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case M64P_CPU_REG_HI:
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return r4300_mult_hi(r4300);
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case M64P_CPU_REG_LO:
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return r4300_mult_lo(r4300);
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case M64P_CPU_REG_COP0:
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return r4300_cp0_regs(&r4300->cp0);
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case M64P_CPU_REG_COP1_DOUBLE_PTR:
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return r4300_cp1_regs_double(&r4300->cp1);
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case M64P_CPU_REG_COP1_SIMPLE_PTR:
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return r4300_cp1_regs_simple(&r4300->cp1);
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case M64P_CPU_REG_COP1_FGR_64:
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return &cp1_regs->dword;
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case M64P_CPU_TLB:
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return r4300->cp0.tlb.entries;
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default:
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DebugMessage(M64MSG_ERROR, "Bug: DebugGetCPUDataPtr() called with invalid input m64p_dbg_cpu_data");
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return NULL;
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}
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}
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EXPORT int CALL DebugBreakpointLookup(unsigned int address, unsigned int size, unsigned int flags)
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{
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#ifdef DBG
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return lookup_breakpoint(address, size, flags);
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugBreakpointLookup() called, but Debugger not supported in Core library");
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return -1;
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#endif
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}
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EXPORT int CALL DebugBreakpointCommand(m64p_dbg_bkp_command command, unsigned int index, m64p_breakpoint *bkp)
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{
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#ifdef DBG
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struct memory* mem = &g_dev.mem;
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switch (command)
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{
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case M64P_BKP_CMD_ADD_ADDR:
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return add_breakpoint(mem, index);
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case M64P_BKP_CMD_ADD_STRUCT:
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return add_breakpoint_struct(mem, bkp);
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case M64P_BKP_CMD_REPLACE:
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replace_breakpoint_num(mem, index, bkp);
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return 0;
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case M64P_BKP_CMD_REMOVE_ADDR:
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remove_breakpoint_by_address(mem, index);
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return 0;
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case M64P_BKP_CMD_REMOVE_IDX:
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remove_breakpoint_by_num(mem, index);
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return 0;
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case M64P_BKP_CMD_ENABLE:
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enable_breakpoint(mem, index);
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return 0;
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case M64P_BKP_CMD_DISABLE:
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disable_breakpoint(mem, index);
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return 0;
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case M64P_BKP_CMD_CHECK:
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return check_breakpoints(index);
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default:
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DebugMessage(M64MSG_ERROR, "Bug: DebugBreakpointCommand() called with invalid input m64p_dbg_bkp_command");
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return -1;
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}
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugBreakpointCommand() called, but Debugger not supported in Core library");
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return -1;
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#endif
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}
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EXPORT void CALL DebugBreakpointTriggeredBy(uint32_t *flags, uint32_t *accessed)
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{
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#ifdef DBG
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*flags = breakpointFlag;
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*accessed = breakpointAccessed;
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugBreakpointTriggeredBy() called, but Debugger not supported in Core library");
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#endif
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}
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EXPORT uint32_t CALL DebugVirtualToPhysical(uint32_t address)
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{
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#ifdef DBG
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struct device* dev = &g_dev;
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struct r4300_core* r4300 = &dev->r4300;
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if ((address & UINT32_C(0xc0000000)) != UINT32_C(0x80000000)) {
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address = virtual_to_physical_address(r4300, address, 0, &(uint8_t){0});
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if (address == 0) {
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return 0;
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}
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}
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address &= UINT32_C(0x1fffffff);
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return address;
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#else
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DebugMessage(M64MSG_ERROR, "Bug: DebugVirtualToPhysical() called, but Debugger not supported in Core library");
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return address;
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#endif
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}
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