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dbg_engine: minidump memory64 parsing; rename switch -> better thing for what it is

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This commit is contained in:
Ryan Fleury
2026-05-18 19:40:47 -07:00
parent a73105b296
commit 80d68b7f95
7 changed files with 394 additions and 333 deletions
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src/dbg_engine/dbg_engine_ctrl.c
+72 -13
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@@ -1302,6 +1302,7 @@ d_entity_store_apply_events(D_EntityCtxRWStore *store, D_EventList *list)
D_Entity *process = d_entity_alloc(store, machine, D_EntityKind_Process, event->arch, event->entity, (U64)event->entity_id);
process->tls_model = event->tls_model;
process->target_os = event->target_os;
d_entity_equip_string(store, process, event->string);
}
}break;
case D_EventKind_EndProc:
@@ -1436,9 +1437,9 @@ d_entity_store_apply_events(D_EntityCtxRWStore *store, D_EventList *list)
module->tls_index = event->tls_index;
module->tls_offset = event->tls_offset;
D_Entity *first_module = d_entity_child_from_kind(process, D_EntityKind_Module);
if(first_module == module)
if(first_module == module && process->string.size == 0)
{
d_entity_equip_string(store, process, str8_skip_last_slash(event->string));
d_entity_equip_string(store, process, event->string);
}
scratch_end(scratch);
}break;
@@ -5156,6 +5157,9 @@ d_ctrl_thread__open_crash_dump(DMN_CtrlCtx *ctrl_ctx, D_Msg *msg)
U64 modules_count = 0;
MDMP_MemoryDescriptor32 *memories = 0;
U64 memories_count = 0;
MDMP_MemoryDescriptor64 *memories64 = 0;
U64 memories64_count = 0;
U64 memories64_base_foff = 0;
{
for EachIndex(idx, directories_count)
{
@@ -5195,6 +5199,16 @@ d_ctrl_thread__open_crash_dump(DMN_CtrlCtx *ctrl_ctx, D_Msg *msg)
memories = (MDMP_MemoryDescriptor32 *)(data.str + off);
memories_count = Min(memories_count_32, memories_count_max);
}break;
case MDMP_StreamKind_Memory64List:
{
U64 memories64_count = 0;
U64 off = dir->location.foff;
off += str8_deserial_read_struct(data, off, &memories64_count);
off += str8_deserial_read_struct(data, off, &memories64_base_foff);
U64 memories64_count_max = (data.size - off) / sizeof(MDMP_MemoryDescriptor64);
memories64 = (MDMP_MemoryDescriptor64 *)(data.str + off);
memories64_count = Min(memories64_count, memories64_count_max);
}break;
}
}
}
@@ -5219,6 +5233,7 @@ d_ctrl_thread__open_crash_dump(DMN_CtrlCtx *ctrl_ctx, D_Msg *msg)
evt->entity = process;
evt->arch = arch;
evt->target_os = OperatingSystem_Windows;
evt->string = path;
}
// rjf: thread creation
@@ -5245,7 +5260,9 @@ d_ctrl_thread__open_crash_dump(DMN_CtrlCtx *ctrl_ctx, D_Msg *msg)
// rjf: module loads
for EachIndex(idx, modules_count)
{
// rjf: unpack module
MDMP_Module *module = &modules[idx];
Rng1U64 vaddr_range = r1u64(module->image_base_vaddr, module->image_base_vaddr + module->image_size);
String8 module_name = {0};
{
U64 module_name_off = module->module_name_foff;
@@ -5256,34 +5273,76 @@ d_ctrl_thread__open_crash_dump(DMN_CtrlCtx *ctrl_ctx, D_Msg *msg)
String16 module_name_16 = str16((U16 *)module_name_raw_data.str, module_name_raw_data.size / sizeof(U16));
module_name = str8_from_16(scratch.arena, module_name_16);
}
D_Event *evt = d_event_list_push(scratch.arena, &evts);
evt->kind = D_EventKind_NewModule;
evt->msg_id = msg->msg_id;
evt->entity = d_dump_handle_make(D_MachineID_Local, handle_id_gen);
evt->parent = process;
evt->arch = arch;
evt->vaddr_rng = r1u64(module->image_base_vaddr, module->image_base_vaddr + module->image_size);
evt->string = module_name;
// TODO(rjf): evt->stack_base = ; (use thread->stack)
// TODO(rjf): evt->tls_root = ; (use thread->thread_context)
// rjf: open module
D_Handle module_handle = d_dump_handle_make(D_MachineID_Local, handle_id_gen);
handle_id_gen += 1;
d_ctrl_thread__module_open(process, module_handle, vaddr_range, module_name, r1u64(0, 0), 0);
// rjf: open debug info
String8 initial_debug_info_path = d_initial_debug_info_path_from_module(scratch.arena, module_handle);
U64 debug_info_timestamp = properties_from_file_path(initial_debug_info_path).modified;
DI_Key initial_dbgi_key = di_key_from_path_timestamp(initial_debug_info_path, debug_info_timestamp);
di_open(initial_dbgi_key);
// rjf: push module load event
{
D_Event *evt = d_event_list_push(scratch.arena, &evts);
evt->kind = D_EventKind_NewModule;
evt->msg_id = msg->msg_id;
evt->entity = module_handle;
evt->parent = process;
evt->arch = arch;
evt->vaddr_rng = vaddr_range;
evt->string = module_name;
// TODO(rjf): evt->stack_base = ; (use thread->stack)
// TODO(rjf): evt->tls_root = ; (use thread->thread_context)
}
// rjf: push debug info initial path set event
{
D_Event *evt = d_event_list_push(scratch.arena, &evts);
evt->kind = D_EventKind_ModuleDebugInfoPathChange;
evt->msg_id = msg->msg_id;
evt->entity = module_handle;
evt->parent = process;
evt->timestamp = debug_info_timestamp;
evt->string = initial_debug_info_path;
}
}
// rjf: allocate parse artifact arena
arena = arena_alloc();
// rjf: gather memory ranges
memory_ranges_count = memories_count;
memory_ranges_count = memories_count + memories64_count;
memory_ranges = push_array(arena, D_DumpMemoryRange, memory_ranges_count);
for EachIndex(idx, memories_count)
{
memory_ranges[idx].base_vaddr = memories[idx].start_of_memory_range;
memory_ranges[idx].foff_range = r1u64(memories[idx].memory_location.foff, memories[idx].memory_location.foff+memories[idx].memory_location.data_size);
}
{
U64 foff = memories64_base_foff;
for EachIndex(idx, memories64_count)
{
memory_ranges[memories_count + idx].base_vaddr = memories64[memories_count + idx].start_of_memory_range;
memory_ranges[memories_count + idx].foff_range = r1u64(foff, foff+memories64[idx].size);
foff += memories64[idx].size;
}
}
}
}
}
//- rjf: record stop
{
D_Event *event = d_event_list_push(scratch.arena, &evts);
event->kind = D_EventKind_Stopped;
event->cause = D_EventCause_Finished;
event->msg_id = msg->msg_id;
}
//- rjf: push all events from the parse
ins_atomic_u64_inc_eval(&d_ctrl_state->mem_gen);
ins_atomic_u64_inc_eval(&d_ctrl_state->reg_gen);