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adjust step trap net build in case of memory read failure - ensure we get correct memory read, otherwise we can generate bad trap nets during heavy load. allow high vs. low priority in async rdi loading; use low-priority in pre-emptive case

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This commit is contained in:
Ryan Fleury
2025-06-18 08:36:41 -07:00
parent 5de7c06d3b
commit 401f117653
12 changed files with 95 additions and 218 deletions
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src/ctrl/ctrl_core.c
+12 -10
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@@ -3293,7 +3293,7 @@ ctrl_call_stack_from_unwind(Arena *arena, CTRL_Entity *process, CTRL_Unwind *bas
CTRL_Entity *module = ctrl_module_from_process_vaddr(process, rip_vaddr);
U64 rip_voff = ctrl_voff_from_vaddr(module, rip_vaddr);
DI_Key dbgi_key = ctrl_dbgi_key_from_module(module);
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &dbgi_key, 0);
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &dbgi_key, 1, 0);
RDI_Scope *scope = rdi_scope_from_voff(rdi, rip_voff);
// rjf: build inline frames (minus parent & inline depth)
@@ -3816,7 +3816,7 @@ ctrl_thread__append_resolved_module_user_bp_traps(Arena *arena, CTRL_EvalScope *
CTRL_Entity *module_entity = ctrl_entity_from_handle(entity_ctx, module);
CTRL_Entity *debug_info_path_entity = ctrl_entity_child_from_kind(module_entity, CTRL_EntityKind_DebugInfoPath);
DI_Key dbgi_key = {debug_info_path_entity->string, debug_info_path_entity->timestamp};
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &dbgi_key, max_U64);
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &dbgi_key, 1, max_U64);
U64 base_vaddr = module_entity->vaddr_range.min;
for(CTRL_UserBreakpointNode *n = user_bps->first; n != 0; n = n->next)
{
@@ -4390,7 +4390,7 @@ ctrl_thread__next_dmn_event(Arena *arena, DMN_CtrlCtx *ctrl_ctx, CTRL_Msg *msg,
B32 asan_shadow_variable_exists_but_is_zero = 0;
CTRL_Entity *dbg_path = ctrl_entity_child_from_kind(module, CTRL_EntityKind_DebugInfoPath);
DI_Key dbgi_key = {dbg_path->string, dbg_path->timestamp};
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &dbgi_key, max_U64);
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &dbgi_key, 1, max_U64);
RDI_NameMap *unparsed_map = rdi_element_from_name_idx(rdi, NameMaps, RDI_NameMapKind_GlobalVariables);
{
RDI_ParsedNameMap map = {0};
@@ -4728,8 +4728,6 @@ ctrl_thread__next_dmn_event(Arena *arena, DMN_CtrlCtx *ctrl_ctx, CTRL_Msg *msg,
(entity_ctx->entity_kind_counts[CTRL_EntityKind_Module] > 256 ||
entity_ctx->entity_kind_counts[CTRL_EntityKind_Module] == 1))
{
U64 endt_us = os_now_microseconds() + 1000000;
//- rjf: unpack event
CTRL_Handle process_handle = ctrl_handle_make(CTRL_MachineID_Local, event->process);
CTRL_Handle loaded_module_handle = ctrl_handle_make(CTRL_MachineID_Local, event->module);
@@ -4881,13 +4879,17 @@ ctrl_thread__next_dmn_event(Arena *arena, DMN_CtrlCtx *ctrl_ctx, CTRL_Msg *msg,
}
}
//- rjf: for each pre-emptively loaded key, wait for the initial
// load task to be done
//- rjf: for each pre-emptively loaded key, try to grab RDI - kicking off parse
for(DI_KeyNode *n = preemptively_loaded_keys.first; n != 0; n = n->next)
{
DI_Scope *di_scope = di_scope_open();
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &n->v, endt_us);
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &n->v, 0, 0);
di_scope_close(di_scope);
}
//- rjf: close all pre-emptively loaded keys
for(DI_KeyNode *n = preemptively_loaded_keys.first; n != 0; n = n->next)
{
di_close(&n->v);
}
}
@@ -5019,7 +5021,7 @@ ctrl_thread__eval_scope_begin(Arena *arena, CTRL_Entity *thread)
CTRL_Entity *dbg_path = ctrl_entity_child_from_kind(mod, CTRL_EntityKind_DebugInfoPath);
DI_Key dbgi_key = {dbg_path->string, dbg_path->timestamp};
eval_modules[eval_module_idx].arch = arch;
eval_modules[eval_module_idx].rdi = di_rdi_from_key(scope->di_scope, &dbgi_key, max_U64);
eval_modules[eval_module_idx].rdi = di_rdi_from_key(scope->di_scope, &dbgi_key, 1, max_U64);
eval_modules[eval_module_idx].vaddr_range = mod->vaddr_range;
eval_modules[eval_module_idx].space = e_space_make(CTRL_EvalSpaceKind_Entity);
eval_modules[eval_module_idx].space.u64_0 = (U64)process;
@@ -5829,7 +5831,7 @@ ctrl_thread__run(DMN_CtrlCtx *ctrl_ctx, CTRL_Msg *msg)
U64 module_base_vaddr = module->vaddr_range.min;
CTRL_Entity *dbg_path = ctrl_entity_child_from_kind(module, CTRL_EntityKind_DebugInfoPath);
DI_Key dbgi_key = {dbg_path->string, dbg_path->timestamp};
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &dbgi_key, max_U64);
RDI_Parsed *rdi = di_rdi_from_key(di_scope, &dbgi_key, 1, max_U64);
RDI_NameMap *unparsed_map = rdi_element_from_name_idx(rdi, NameMaps, RDI_NameMapKind_Procedures);
RDI_ParsedNameMap map = {0};
rdi_parsed_from_name_map(rdi, unparsed_map, &map);