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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.mdesk
+2 -1
View File
@@ -14,7 +14,8 @@ CTRL_EntityKindTable:
{Module module "Module" }
{EntryPoint entry_point "Entry Point" }
{DebugInfoPath debug_info_path "Debug Info Path" }
{PendingThreadName pending_thread_name "Pending Thread Name" }
{PendingThreadName pending_thread_name "Pending Thread Name" }
{Breakpoint breakpoint "Breakpoint" }
}
@enum CTRL_EntityKind:
src/ctrl/ctrl_core.c
+28
View File
@@ -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;
src/ctrl/ctrl_core.h
+48 -47
View File
@@ -12,6 +12,53 @@ typedef U64 CTRL_MachineID;
#define CTRL_MachineID_Local (1)
////////////////////////////////
//~ rjf: User Breakpoint Types
typedef U32 CTRL_UserBreakpointFlags;
enum
{
CTRL_UserBreakpointFlag_BreakOnWrite = (1<<0),
CTRL_UserBreakpointFlag_BreakOnRead = (1<<1),
CTRL_UserBreakpointFlag_BreakOnExecute = (1<<2),
};
typedef enum CTRL_UserBreakpointKind
{
CTRL_UserBreakpointKind_Null,
CTRL_UserBreakpointKind_FileNameAndLineColNumber,
CTRL_UserBreakpointKind_Expression,
CTRL_UserBreakpointKind_COUNT
}
CTRL_UserBreakpointKind;
typedef struct CTRL_UserBreakpoint CTRL_UserBreakpoint;
struct CTRL_UserBreakpoint
{
CTRL_UserBreakpointKind kind;
CTRL_UserBreakpointFlags flags;
U64 id;
String8 string;
TxtPt pt;
U64 size;
String8 condition;
};
typedef struct CTRL_UserBreakpointNode CTRL_UserBreakpointNode;
struct CTRL_UserBreakpointNode
{
CTRL_UserBreakpointNode *next;
CTRL_UserBreakpoint v;
};
typedef struct CTRL_UserBreakpointList CTRL_UserBreakpointList;
struct CTRL_UserBreakpointList
{
CTRL_UserBreakpointNode *first;
CTRL_UserBreakpointNode *last;
U64 count;
};
////////////////////////////////
//~ rjf: Entity Handle Types
@@ -62,6 +109,7 @@ struct CTRL_Entity
Rng1U64 vaddr_range;
U64 stack_base;
U64 timestamp;
CTRL_UserBreakpointFlags bp_flags;
String8 string;
};
@@ -256,53 +304,6 @@ struct CTRL_Spoof
U64 new_ip_value;
};
////////////////////////////////
//~ rjf: User Breakpoint Types
typedef U32 CTRL_UserBreakpointFlags;
enum
{
CTRL_UserBreakpointFlag_BreakOnWrite = (1<<0),
CTRL_UserBreakpointFlag_BreakOnRead = (1<<1),
CTRL_UserBreakpointFlag_BreakOnExecute = (1<<2),
};
typedef enum CTRL_UserBreakpointKind
{
CTRL_UserBreakpointKind_Null,
CTRL_UserBreakpointKind_FileNameAndLineColNumber,
CTRL_UserBreakpointKind_Expression,
CTRL_UserBreakpointKind_COUNT
}
CTRL_UserBreakpointKind;
typedef struct CTRL_UserBreakpoint CTRL_UserBreakpoint;
struct CTRL_UserBreakpoint
{
CTRL_UserBreakpointKind kind;
CTRL_UserBreakpointFlags flags;
U64 id;
String8 string;
TxtPt pt;
U64 size;
String8 condition;
};
typedef struct CTRL_UserBreakpointNode CTRL_UserBreakpointNode;
struct CTRL_UserBreakpointNode
{
CTRL_UserBreakpointNode *next;
CTRL_UserBreakpoint v;
};
typedef struct CTRL_UserBreakpointList CTRL_UserBreakpointList;
struct CTRL_UserBreakpointList
{
CTRL_UserBreakpointNode *first;
CTRL_UserBreakpointNode *last;
U64 count;
};
////////////////////////////////
//~ rjf: Evaluation Spaces
src/ctrl/generated/ctrl.meta.c
+4 -2
View File
@@ -4,7 +4,7 @@
//- GENERATED CODE
C_LINKAGE_BEGIN
String8 ctrl_entity_kind_code_name_table[9] =
String8 ctrl_entity_kind_code_name_table[10] =
{
{0},
str8_lit_comp("root"),
@@ -15,9 +15,10 @@ str8_lit_comp("module"),
str8_lit_comp("entry_point"),
str8_lit_comp("debug_info_path"),
str8_lit_comp("pending_thread_name"),
str8_lit_comp("breakpoint"),
};
String8 ctrl_entity_kind_display_string_table[9] =
String8 ctrl_entity_kind_display_string_table[10] =
{
{0},
str8_lit_comp("Root"),
@@ -28,6 +29,7 @@ str8_lit_comp("Module"),
str8_lit_comp("EntryPoint"),
str8_lit_comp("DebugInfoPath"),
str8_lit_comp("PendingThreadName"),
str8_lit_comp("Breakpoint"),
};
U32 ctrl_exception_code_kind_code_table[38] =
src/ctrl/generated/ctrl.meta.h
+3 -2
View File
@@ -17,6 +17,7 @@ CTRL_EntityKind_Module,
CTRL_EntityKind_EntryPoint,
CTRL_EntityKind_DebugInfoPath,
CTRL_EntityKind_PendingThreadName,
CTRL_EntityKind_Breakpoint,
CTRL_EntityKind_COUNT,
} CTRL_EntityKind;
@@ -64,8 +65,8 @@ CTRL_ExceptionCodeKind_COUNT,
} CTRL_ExceptionCodeKind;
C_LINKAGE_BEGIN
extern String8 ctrl_entity_kind_code_name_table[9];
extern String8 ctrl_entity_kind_display_string_table[9];
extern String8 ctrl_entity_kind_code_name_table[10];
extern String8 ctrl_entity_kind_display_string_table[10];
extern U32 ctrl_exception_code_kind_code_table[38];
extern String8 ctrl_exception_code_kind_display_string_table[38];
extern String8 ctrl_exception_code_kind_lowercase_code_string_table[38];