--- /dev/null
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Mupen64plus - dbg_breakpoints.c *
+ * Mupen64Plus homepage: http://code.google.com/p/mupen64plus/ *
+ * Copyright (C) 2008 DarkJeztr HyperHacker *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include <SDL.h>
+#include <SDL_thread.h>
+
+#include "dbg_types.h"
+#include "debugger.h"
+#include "dbg_breakpoints.h"
+#include "dbg_memory.h"
+
+#include "api/m64p_types.h"
+#include "api/callbacks.h"
+
+int g_NumBreakpoints=0;
+breakpoint g_Breakpoints[BREAKPOINTS_MAX_NUMBER];
+
+
+int add_breakpoint( uint32 address )
+{
+ if( g_NumBreakpoints == BREAKPOINTS_MAX_NUMBER ) {
+ DebugMessage(M64MSG_ERROR, "BREAKPOINTS_MAX_NUMBER have been reached.");
+ return -1;
+ }
+ g_Breakpoints[g_NumBreakpoints].address=address;
+ g_Breakpoints[g_NumBreakpoints].endaddr=address;
+ BPT_SET_FLAG(g_Breakpoints[g_NumBreakpoints], BPT_FLAG_EXEC);
+
+ enable_breakpoint(g_NumBreakpoints);
+
+ return g_NumBreakpoints++;
+}
+
+int add_breakpoint_struct(breakpoint* newbp)
+{
+ if( g_NumBreakpoints == BREAKPOINTS_MAX_NUMBER ) {
+ DebugMessage(M64MSG_ERROR, "BREAKPOINTS_MAX_NUMBER have been reached.");
+ return -1;
+ }
+
+ memcpy(&g_Breakpoints[g_NumBreakpoints], newbp, sizeof(breakpoint));
+
+ if(BPT_CHECK_FLAG(g_Breakpoints[g_NumBreakpoints], BPT_FLAG_ENABLED))
+ {
+ BPT_CLEAR_FLAG(g_Breakpoints[g_NumBreakpoints], BPT_FLAG_ENABLED);
+ enable_breakpoint( g_NumBreakpoints );
+ }
+
+ return g_NumBreakpoints++;
+}
+
+void enable_breakpoint( int bpt)
+{
+ breakpoint *curBpt = g_Breakpoints + bpt;
+ uint64 bptAddr;
+
+ if(BPT_CHECK_FLAG((*curBpt), BPT_FLAG_READ)) {
+ for(bptAddr = curBpt->address; bptAddr <= (curBpt->endaddr | 0xFFFF); bptAddr+=0x10000)
+ if(lookup_breakpoint((uint32) bptAddr & 0xFFFF0000, 0x10000, BPT_FLAG_ENABLED | BPT_FLAG_READ) == -1)
+ activate_memory_break_read((uint32) bptAddr);
+ }
+
+ if(BPT_CHECK_FLAG((*curBpt), BPT_FLAG_WRITE)) {
+ for(bptAddr = curBpt->address; bptAddr <= (curBpt->endaddr | 0xFFFF); bptAddr+=0x10000)
+ if(lookup_breakpoint((uint32) bptAddr & 0xFFFF0000, 0x10000, BPT_FLAG_ENABLED | BPT_FLAG_WRITE) == -1)
+ activate_memory_break_write((uint32) bptAddr);
+ }
+
+ BPT_SET_FLAG(g_Breakpoints[bpt], BPT_FLAG_ENABLED);
+}
+
+void disable_breakpoint( int bpt )
+{
+ breakpoint *curBpt = g_Breakpoints + bpt;
+ uint64 bptAddr;
+
+ BPT_CLEAR_FLAG(g_Breakpoints[bpt], BPT_FLAG_ENABLED);
+
+ if(BPT_CHECK_FLAG((*curBpt), BPT_FLAG_READ)) {
+ for(bptAddr = curBpt->address; bptAddr <= ((unsigned long)(curBpt->endaddr | 0xFFFF)); bptAddr+=0x10000)
+ if(lookup_breakpoint((uint32) bptAddr & 0xFFFF0000, 0x10000, BPT_FLAG_ENABLED | BPT_FLAG_READ) == -1)
+ deactivate_memory_break_read((uint32) bptAddr);
+ }
+
+ if(BPT_CHECK_FLAG((*curBpt), BPT_FLAG_WRITE)) {
+ for(bptAddr = curBpt->address; bptAddr <= ((unsigned long)(curBpt->endaddr | 0xFFFF)); bptAddr+=0x10000)
+ if(lookup_breakpoint((uint32) bptAddr & 0xFFFF0000, 0x10000, BPT_FLAG_ENABLED | BPT_FLAG_WRITE) == -1)
+ deactivate_memory_break_write((uint32) bptAddr);
+ }
+
+ BPT_CLEAR_FLAG(g_Breakpoints[bpt], BPT_FLAG_ENABLED);
+}
+
+void remove_breakpoint_by_num( int bpt )
+{
+ int curBpt;
+
+ if(BPT_CHECK_FLAG(g_Breakpoints[bpt], BPT_FLAG_ENABLED))
+ disable_breakpoint( bpt );
+
+ for(curBpt=bpt+1; curBpt<g_NumBreakpoints; curBpt++)
+ g_Breakpoints[curBpt-1]=g_Breakpoints[curBpt];
+
+ g_NumBreakpoints--;
+}
+
+void remove_breakpoint_by_address( uint32 address )
+{
+ int bpt = lookup_breakpoint( address, 1, 0 );
+ if(bpt==-1)
+ {
+ DebugMessage(M64MSG_ERROR, "Tried to remove Nonexistant breakpoint %x!", address);
+ }
+ else
+ remove_breakpoint_by_num( bpt );
+}
+
+void replace_breakpoint_num( int bpt, breakpoint* copyofnew )
+{
+
+ if(BPT_CHECK_FLAG(g_Breakpoints[bpt], BPT_FLAG_ENABLED))
+ disable_breakpoint( bpt );
+
+ memcpy(&(g_Breakpoints[bpt]), copyofnew, sizeof(breakpoint));
+
+ if(BPT_CHECK_FLAG(g_Breakpoints[bpt], BPT_FLAG_ENABLED))
+ {
+ BPT_CLEAR_FLAG(g_Breakpoints[bpt], BPT_FLAG_ENABLED);
+ enable_breakpoint( bpt );
+ }
+}
+
+int lookup_breakpoint( uint32 address, uint32 size, uint32 flags)
+{
+ int i;
+ uint64 endaddr = ((uint64)address) + ((uint64)size) - 1;
+
+ for( i=0; i < g_NumBreakpoints; i++)
+ {
+ if((g_Breakpoints[i].flags & flags) == flags)
+ {
+ if(g_Breakpoints[i].endaddr < g_Breakpoints[i].address)
+ {
+ if((endaddr >= g_Breakpoints[i].address) ||
+ (address <= g_Breakpoints[i].endaddr))
+ return i;
+ }
+ else // endaddr >= address
+ {
+ if((endaddr >= g_Breakpoints[i].address) &&
+ (address <= g_Breakpoints[i].endaddr))
+ return i;
+ }
+ }
+ }
+ return -1;
+}
+
+int check_breakpoints( uint32 address )
+{
+ return lookup_breakpoint( address, 1, BPT_FLAG_ENABLED | BPT_FLAG_EXEC );
+}
+
+
+int check_breakpoints_on_mem_access( uint32 pc, uint32 address, uint32 size, uint32 flags )
+{
+ //This function handles memory read/write breakpoints. size specifies the address
+ //range to check, flags specifies the flags that all need to be set.
+ //It automatically stops and updates the debugger on hit, so the memory access
+ //functions only need to call it and can discard the result.
+ int bpt;
+ if(run == 2)
+ {
+ bpt=lookup_breakpoint( address, size, flags );
+ if(bpt != -1)
+ {
+ if(BPT_CHECK_FLAG(g_Breakpoints[bpt], BPT_FLAG_LOG))
+ log_breakpoint(pc, flags, address);
+
+ run = 0;
+ update_debugger(pc);
+
+ return bpt;
+ }
+ }
+ return -1;
+}
+
+int log_breakpoint(uint32 PC, uint32 Flag, uint32 Access)
+{
+ char msg[32];
+
+ if(Flag & BPT_FLAG_READ) sprintf(msg, "0x%08X read 0x%08X", PC, Access);
+ else if(Flag & BPT_FLAG_WRITE) sprintf(msg, "0x%08X wrote 0x%08X", PC, Access);
+ else sprintf(msg, "0x%08X executed", PC);
+ DebugMessage(M64MSG_INFO, "BPT: %s", msg);
+ return 0;
+}
+
notaz.gp2x.de / mupen64plus-pandora.git / blobdiff