Mercurial > repos > blastem

comparison gdb_remote.c @ 2361:3350b3c8faa8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial implementation of VDP register write breakpoints
author Michael Pavone <pavone@retrodev.com>
date Mon, 30 Oct 2023 00:07:56 -0700
parents 8554751f17b5
children 39a009aea113
comparison
equal deleted inserted replaced
2360:053ba4551c62 2361:3350b3c8faa8
225 uint32_t address = strtoul(command+3, NULL, 16); 225 uint32_t address = strtoul(command+3, NULL, 16);
226 insert_breakpoint(context, address, gdb_debug_enter); 226 insert_breakpoint(context, address, gdb_debug_enter);
227 bp_def *new_bp = malloc(sizeof(bp_def)); 227 bp_def *new_bp = malloc(sizeof(bp_def));
228 new_bp->next = root->breakpoints; 228 new_bp->next = root->breakpoints;
229 new_bp->address = address; 229 new_bp->address = address;
230 new_bp->mask = 0xFFFFFF;
231 new_bp->type = BP_TYPE_CPU;
230 new_bp->index = root->bp_index++; 232 new_bp->index = root->bp_index++;
231 root->breakpoints = new_bp; 233 root->breakpoints = new_bp;
232 gdb_send_command("OK"); 234 gdb_send_command("OK");
233 } else { 235 } else {
234 //watchpoints are not currently supported 236 //watchpoints are not currently supported
239 case 'z': { 241 case 'z': {
240 uint8_t type = command[1]; 242 uint8_t type = command[1];
241 if (type < '2') { 243 if (type < '2') {
242 uint32_t address = strtoul(command+3, NULL, 16); 244 uint32_t address = strtoul(command+3, NULL, 16);
243 remove_breakpoint(context, address); 245 remove_breakpoint(context, address);
244 bp_def **found = find_breakpoint(&root->breakpoints, address); 246 bp_def **found = find_breakpoint(&root->breakpoints, address, BP_TYPE_CPU);
245 if (*found) 247 if (*found)
246 { 248 {
247 bp_def * to_remove = *found; 249 bp_def * to_remove = *found;
248 *found = to_remove->next; 250 *found = to_remove->next;
249 free(to_remove); 251 free(to_remove);
463 debug_root *root = find_root(context); 465 debug_root *root = find_root(context);
464 if (!root) { 466 if (!root) {
465 fatal_error("Could not find debug root for CPU %p\n", context); 467 fatal_error("Could not find debug root for CPU %p\n", context);
466 } 468 }
467 if ((pc & 0xFFFFFF) == root->branch_t) { 469 if ((pc & 0xFFFFFF) == root->branch_t) {
468 bp_def ** f_bp = find_breakpoint(&root->breakpoints, root->branch_f); 470 bp_def ** f_bp = find_breakpoint(&root->breakpoints, root->branch_f, BP_TYPE_CPU);
469 if (!*f_bp) { 471 if (!*f_bp) {
470 remove_breakpoint(context, root->branch_f); 472 remove_breakpoint(context, root->branch_f);
471 } 473 }
472 root->branch_t = root->branch_f = 0; 474 root->branch_t = root->branch_f = 0;
473 } else if((pc & 0xFFFFFF) == root->branch_f) { 475 } else if((pc & 0xFFFFFF) == root->branch_f) {
474 bp_def ** t_bp = find_breakpoint(&root->breakpoints, root->branch_t); 476 bp_def ** t_bp = find_breakpoint(&root->breakpoints, root->branch_t, BP_TYPE_CPU);
475 if (!*t_bp) { 477 if (!*t_bp) {
476 remove_breakpoint(context, root->branch_t); 478 remove_breakpoint(context, root->branch_t);
477 } 479 }
478 root->branch_t = root->branch_f = 0; 480 root->branch_t = root->branch_f = 0;
479 } 481 }
480 //Check if this is a user set breakpoint, or just a temporary one 482 //Check if this is a user set breakpoint, or just a temporary one
481 bp_def ** this_bp = find_breakpoint(&root->breakpoints, pc & 0xFFFFFF); 483 bp_def ** this_bp = find_breakpoint(&root->breakpoints, pc & 0xFFFFFF, BP_TYPE_CPU);
482 if (!*this_bp) { 484 if (!*this_bp) {
483 remove_breakpoint(context, pc & 0xFFFFFF); 485 remove_breakpoint(context, pc & 0xFFFFFF);
484 } 486 }
485 resume_pc = pc; 487 resume_pc = pc;
486 cont = 0; 488 cont = 0;