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use set/unset breakpoint events to build bp entities in ctrl entity tree

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This commit is contained in:
Ryan Fleury
2025-04-12 15:32:27 -07:00
parent 7ba027e841
commit 8a857b2154
5 changed files with 85 additions and 52 deletions
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src/ctrl/ctrl_core.c
+28
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@@ -1312,6 +1312,30 @@ ctrl_entity_store_apply_events(CTRL_EntityStore *store, CTRL_EventList *list)
ctrl_entity_equip_string(store, debug_info_path, event->string);
debug_info_path->timestamp = event->timestamp;
}break;
//- rjf: dynamic, program-created breakpoints
case CTRL_EventKind_SetBreakpoint:
{
CTRL_Entity *process = ctrl_entity_from_handle(store, event->parent);
CTRL_Entity *bp = ctrl_entity_alloc(store, process, CTRL_EntityKind_Breakpoint, Arch_Null, ctrl_handle_zero(), 0);
bp->vaddr_range = event->vaddr_rng;
bp->bp_flags = event->bp_flags;
}break;
case CTRL_EventKind_UnsetBreakpoint:
{
CTRL_Entity *process = ctrl_entity_from_handle(store, event->parent);
for(CTRL_Entity *child = process->first; child != &ctrl_entity_nil; child = child->next)
{
if(child->kind == CTRL_EntityKind_Breakpoint &&
child->vaddr_range.min == event->vaddr_rng.min &&
child->vaddr_range.max == event->vaddr_rng.max &&
child->bp_flags == event->bp_flags)
{
ctrl_entity_release(store, child);
break;
}
}
}break;
}
}
}
@@ -4369,6 +4393,8 @@ ctrl_thread__next_dmn_event(Arena *arena, DMN_CtrlCtx *ctrl_ctx, CTRL_Msg *msg,
{
CTRL_Event *out_evt = ctrl_event_list_push(scratch.arena, &evts);
out_evt->kind = CTRL_EventKind_SetBreakpoint;
out_evt->entity = ctrl_handle_make(CTRL_MachineID_Local, event->thread);
out_evt->parent = ctrl_handle_make(CTRL_MachineID_Local, event->process);
out_evt->vaddr_rng = r1u64(event->address, event->address+event->size);
out_evt->bp_flags = ctrl_user_breakpoint_flags_from_dmn_trap_flags(event->flags);
}break;
@@ -4376,6 +4402,8 @@ ctrl_thread__next_dmn_event(Arena *arena, DMN_CtrlCtx *ctrl_ctx, CTRL_Msg *msg,
{
CTRL_Event *out_evt = ctrl_event_list_push(scratch.arena, &evts);
out_evt->kind = CTRL_EventKind_UnsetBreakpoint;
out_evt->entity = ctrl_handle_make(CTRL_MachineID_Local, event->thread);
out_evt->parent = ctrl_handle_make(CTRL_MachineID_Local, event->process);
out_evt->vaddr_rng = r1u64(event->address, event->address+event->size);
out_evt->bp_flags = ctrl_user_breakpoint_flags_from_dmn_trap_flags(event->flags);
}break;