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Add frontend stuff instrumentation tooling

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//+no-instrumentation
@(no_instrumentation)
@(instrumentation_enter)
@(instrumentation_exit)
This commit is contained in:
gingerBill
2024-01-07 19:56:00 +00:00
parent 1e1228fb37
commit aff8f06e3c
6 changed files with 140 additions and 12 deletions
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66
src/check_decl.cpp
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@@ -909,6 +909,72 @@ gb_internal void check_proc_decl(CheckerContext *ctx, Entity *e, DeclInfo *d) {
e->Procedure.entry_point_only = ac.entry_point_only;
e->Procedure.is_export = ac.is_export;
bool no_instrumentation = false;
if (pl->body == nullptr) {
no_instrumentation = true;
if (ac.no_instrumentation != Instrumentation_Default) {
error(e->token, "@(no_instrumentation) is not allowed on foreign procedures");
}
} else {
if (e->file) {
no_instrumentation = (e->file->flags & AstFile_NoInstrumentation) != 0;
}
switch (ac.no_instrumentation) {
case Instrumentation_Enabled: no_instrumentation = false; break;
case Instrumentation_Default: break;
case Instrumentation_Disabled: no_instrumentation = true; break;
}
}
e->Procedure.no_instrumentation = no_instrumentation;
auto const is_valid_instrumentation_call = [](Type *type) -> bool {
if (type == nullptr || type->kind != Type_Proc) {
return false;
}
if (type->Proc.calling_convention != ProcCC_CDecl) {
return false;
}
if (type->Proc.result_count != 0) {
return false;
}
if (type->Proc.param_count != 2) {
return false;
}
Type *p0 = type->Proc.params->Tuple.variables[0]->type;
Type *p1 = type->Proc.params->Tuple.variables[1]->type;
return is_type_rawptr(p0) && is_type_rawptr(p1);
};
if (ac.instrumentation_enter && ac.instrumentation_exit) {
error(e->token, "A procedure cannot be marked with both @(instrumentation_enter) and @(instrumentation_exit)");
} else if (ac.instrumentation_enter) {
if (!is_valid_instrumentation_call(e->type)) {
gbString s = type_to_string(e->type);
error(e->token, "@(instrumentation_enter) procedures must have the type 'proc \"c\" (rawptr, rawptr)', got %s", s);
gb_string_free(s);
}
MUTEX_GUARD(&ctx->info->instrumentation_mutex);
if (ctx->info->instrumentation_enter_entity != nullptr) {
error(e->token, "@(instrumentation_enter) has already been set");
} else {
ctx->info->instrumentation_enter_entity = e;
}
} else if (ac.instrumentation_exit) {
if (!is_valid_instrumentation_call(e->type)) {
gbString s = type_to_string(e->type);
error(e->token, "@(instrumentation_exit) procedures must have the type 'proc \"c\" (rawptr, rawptr)', got %s", s);
gb_string_free(s);
}
MUTEX_GUARD(&ctx->info->instrumentation_mutex);
if (ctx->info->instrumentation_exit_entity != nullptr) {
error(e->token, "@(instrumentation_exit) has already been set");
} else {
ctx->info->instrumentation_exit_entity = e;
}
}
e->deprecated_message = ac.deprecated_message;
e->warning_message = ac.warning_message;
ac.link_name = handle_link_name(ctx, e->token, ac.link_name, ac.link_prefix);