diff options
Diffstat (limited to 'source/compiler/aslload.c')
| -rw-r--r-- | source/compiler/aslload.c | 97 |
1 files changed, 68 insertions, 29 deletions
diff --git a/source/compiler/aslload.c b/source/compiler/aslload.c index 5bb0a8515566..7f29b90c6366 100644 --- a/source/compiler/aslload.c +++ b/source/compiler/aslload.c @@ -417,10 +417,8 @@ LdLoadResourceElements ( { Status = AcpiNsLookup (WalkState->ScopeInfo, InitializerOp->Asl.ExternalName, - ACPI_TYPE_LOCAL_RESOURCE_FIELD, - ACPI_IMODE_LOAD_PASS1, - ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE, - NULL, &Node); + ACPI_TYPE_LOCAL_RESOURCE_FIELD, ACPI_IMODE_LOAD_PASS1, + ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE, NULL, &Node); if (ACPI_FAILURE (Status)) { return (Status); @@ -687,8 +685,7 @@ LdNamespace1Begin ( * handle this case. Perhaps someday this case can go away. */ Status = AcpiNsLookup (WalkState->ScopeInfo, Path, ACPI_TYPE_ANY, - ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, - WalkState, &(Node)); + ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, WalkState, &Node); if (ACPI_FAILURE (Status)) { if (Status == AE_NOT_FOUND) @@ -696,23 +693,26 @@ LdNamespace1Begin ( /* The name was not found, go ahead and create it */ Status = AcpiNsLookup (WalkState->ScopeInfo, Path, - ACPI_TYPE_LOCAL_SCOPE, - ACPI_IMODE_LOAD_PASS1, Flags, - WalkState, &(Node)); + ACPI_TYPE_LOCAL_SCOPE, ACPI_IMODE_LOAD_PASS1, + Flags, WalkState, &Node); if (ACPI_FAILURE (Status)) { return_ACPI_STATUS (Status); } - /* - * However, this is an error -- primarily because the MS - * interpreter can't handle a forward reference from the - * Scope() operator. - */ - AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op, - Op->Asl.ExternalName); - AslError (ASL_ERROR, ASL_MSG_SCOPE_FWD_REF, Op, - Op->Asl.ExternalName); + /* However, this is an error -- operand to Scope must exist */ + + if (strlen (Op->Asl.ExternalName) == ACPI_NAME_SIZE) + { + AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op, + Op->Asl.ExternalName); + } + else + { + AslError (ASL_ERROR, ASL_MSG_NAMEPATH_NOT_EXIST, Op, + Op->Asl.ExternalName); + } + goto FinishNode; } @@ -824,7 +824,6 @@ LdNamespace1Begin ( break; } - ACPI_DEBUG_PRINT ((ACPI_DB_DISPATCH, "Loading name: %s, (%s)\n", Op->Asl.ExternalName, AcpiUtGetTypeName (ObjectType))); @@ -833,6 +832,18 @@ LdNamespace1Begin ( Flags |= ACPI_NS_ERROR_IF_FOUND; /* + * For opcodes that enter new names into the namespace, + * all prefix NameSegs must exist. + */ + WalkState->OpInfo = AcpiPsGetOpcodeInfo (Op->Asl.AmlOpcode); + if (((WalkState->OpInfo->Flags & AML_NAMED) || + (WalkState->OpInfo->Flags & AML_CREATE)) && + (Op->Asl.AmlOpcode != AML_EXTERNAL_OP)) + { + Flags |= ACPI_NS_PREFIX_MUST_EXIST; + } + + /* * Enter the named type into the internal namespace. We enter the name * as we go downward in the parse tree. Any necessary subobjects that * involve arguments to the opcode must be created as we go back up the @@ -915,8 +926,20 @@ LdNamespace1Begin ( return_ACPI_STATUS (AE_OK); } } + else if (AE_NOT_FOUND) + { + /* + * One or more prefix NameSegs of the NamePath do not exist + * (all of them must exist). Attempt to continue compilation + * by setting the current scope to the root. + */ + Node = AcpiGbl_RootNode; + Status = AE_OK; + } else { + /* Flag all other errors as coming from the ACPICA core */ + AslCoreSubsystemError (Op, Status, "Failure from namespace lookup", FALSE); return_ACPI_STATUS (Status); @@ -1043,10 +1066,10 @@ LdNamespace2Begin ( if (Op->Asl.ParseOpcode == PARSEOP_ALIAS) { - /* Complete the alias node by getting and saving the target node */ - - /* First child is the alias target */ - + /* + * Complete the alias node by getting and saving the target node. + * First child is the alias target + */ Arg = Op->Asl.Child; /* Get the target pathname */ @@ -1070,18 +1093,34 @@ LdNamespace2Begin ( { if (Status == AE_NOT_FOUND) { - AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op, - Op->Asl.ExternalName); + /* Standalone NameSeg vs. NamePath */ + + if (strlen (Arg->Asl.ExternalName) == ACPI_NAME_SIZE) + { + AslError (ASL_ERROR, ASL_MSG_NOT_FOUND, Op, + Arg->Asl.ExternalName); + } + else + { + AslError (ASL_ERROR, ASL_MSG_NAMEPATH_NOT_EXIST, Op, + Arg->Asl.ExternalName); + } +#if 0 +/* + * NOTE: Removed 10/2018 to enhance compiler error reporting. No + * regressions seen. + */ /* * The name was not found, go ahead and create it. * This prevents more errors later. */ Status = AcpiNsLookup (WalkState->ScopeInfo, Path, - ACPI_TYPE_ANY, - ACPI_IMODE_LOAD_PASS1, ACPI_NS_NO_UPSEARCH, - WalkState, &(Node)); - return (AE_OK); + ACPI_TYPE_ANY, ACPI_IMODE_LOAD_PASS1, + ACPI_NS_NO_UPSEARCH, WalkState, &Node); +#endif + return (Status); +/* Removed: return (AE_OK)*/ } AslCoreSubsystemError (Op, Status, |