drivers/acpi/acpica/uterror.c

   1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
   2 /*******************************************************************************
   3  *
   4  * Module Name: uterror - Various internal error/warning output functions
   5  *
   6  ******************************************************************************/
   7
   8 #include <acpi/acpi.h>
   9 #include "accommon.h"
  10 #include "acnamesp.h"
  11
  12 #define _COMPONENT          ACPI_UTILITIES
  13 ACPI_MODULE_NAME("uterror")
  14
  15 /*
  16  * This module contains internal error functions that may
  17  * be configured out.
  18  */
  19 #if !defined (ACPI_NO_ERROR_MESSAGES)
  20 /*******************************************************************************
  21  *
  22  * FUNCTION:    acpi_ut_predefined_warning
  23  *
  24  * PARAMETERS:  module_name     - Caller's module name (for error output)
  25  *              line_number     - Caller's line number (for error output)
  26  *              pathname        - Full pathname to the node
  27  *              node_flags      - From Namespace node for the method/object
  28  *              format          - Printf format string + additional args
  29  *
  30  * RETURN:      None
  31  *
  32  * DESCRIPTION: Warnings for the predefined validation module. Messages are
  33  *              only emitted the first time a problem with a particular
  34  *              method/object is detected. This prevents a flood of error
  35  *              messages for methods that are repeatedly evaluated.
  36  *
  37  ******************************************************************************/
  38 void ACPI_INTERNAL_VAR_XFACE
  39 acpi_ut_predefined_warning(const char *module_name,
  40                            u32 line_number,
  41                            char *pathname,
  42                            u8 node_flags, const char *format, ...)
  43 {
  44         va_list arg_list;
  45
  46         /*
  47          * Warning messages for this method/object will be disabled after the
  48          * first time a validation fails or an object is successfully repaired.
  49          */
  50         if (node_flags & ANOBJ_EVALUATED) {
  51                 return;
  52         }
  53
  54         acpi_os_printf(ACPI_MSG_WARNING "%s: ", pathname);
  55
  56         va_start(arg_list, format);
  57         acpi_os_vprintf(format, arg_list);
  58         ACPI_MSG_SUFFIX;
  59         va_end(arg_list);
  60 }
  61
  62 /*******************************************************************************
  63  *
  64  * FUNCTION:    acpi_ut_predefined_info
  65  *
  66  * PARAMETERS:  module_name     - Caller's module name (for error output)
  67  *              line_number     - Caller's line number (for error output)
  68  *              pathname        - Full pathname to the node
  69  *              node_flags      - From Namespace node for the method/object
  70  *              format          - Printf format string + additional args
  71  *
  72  * RETURN:      None
  73  *
  74  * DESCRIPTION: Info messages for the predefined validation module. Messages
  75  *              are only emitted the first time a problem with a particular
  76  *              method/object is detected. This prevents a flood of
  77  *              messages for methods that are repeatedly evaluated.
  78  *
  79  ******************************************************************************/
  80
  81 void ACPI_INTERNAL_VAR_XFACE
  82 acpi_ut_predefined_info(const char *module_name,
  83                         u32 line_number,
  84                         char *pathname, u8 node_flags, const char *format, ...)
  85 {
  86         va_list arg_list;
  87
  88         /*
  89          * Warning messages for this method/object will be disabled after the
  90          * first time a validation fails or an object is successfully repaired.
  91          */
  92         if (node_flags & ANOBJ_EVALUATED) {
  93                 return;
  94         }
  95
  96         acpi_os_printf(ACPI_MSG_INFO "%s: ", pathname);
  97
  98         va_start(arg_list, format);
  99         acpi_os_vprintf(format, arg_list);
 100         ACPI_MSG_SUFFIX;
 101         va_end(arg_list);
 102 }
 103
 104 /*******************************************************************************
 105  *
 106  * FUNCTION:    acpi_ut_predefined_bios_error
 107  *
 108  * PARAMETERS:  module_name     - Caller's module name (for error output)
 109  *              line_number     - Caller's line number (for error output)
 110  *              pathname        - Full pathname to the node
 111  *              node_flags      - From Namespace node for the method/object
 112  *              format          - Printf format string + additional args
 113  *
 114  * RETURN:      None
 115  *
 116  * DESCRIPTION: BIOS error message for predefined names. Messages
 117  *              are only emitted the first time a problem with a particular
 118  *              method/object is detected. This prevents a flood of
 119  *              messages for methods that are repeatedly evaluated.
 120  *
 121  ******************************************************************************/
 122
 123 void ACPI_INTERNAL_VAR_XFACE
 124 acpi_ut_predefined_bios_error(const char *module_name,
 125                               u32 line_number,
 126                               char *pathname,
 127                               u8 node_flags, const char *format, ...)
 128 {
 129         va_list arg_list;
 130
 131         /*
 132          * Warning messages for this method/object will be disabled after the
 133          * first time a validation fails or an object is successfully repaired.
 134          */
 135         if (node_flags & ANOBJ_EVALUATED) {
 136                 return;
 137         }
 138
 139         acpi_os_printf(ACPI_MSG_BIOS_ERROR "%s: ", pathname);
 140
 141         va_start(arg_list, format);
 142         acpi_os_vprintf(format, arg_list);
 143         ACPI_MSG_SUFFIX;
 144         va_end(arg_list);
 145 }
 146
 147 /*******************************************************************************
 148  *
 149  * FUNCTION:    acpi_ut_prefixed_namespace_error
 150  *
 151  * PARAMETERS:  module_name         - Caller's module name (for error output)
 152  *              line_number         - Caller's line number (for error output)
 153  *              prefix_scope        - Scope/Path that prefixes the internal path
 154  *              internal_path       - Name or path of the namespace node
 155  *              lookup_status       - Exception code from NS lookup
 156  *
 157  * RETURN:      None
 158  *
 159  * DESCRIPTION: Print error message with the full pathname constructed this way:
 160  *
 161  *                  prefix_scope_node_full_path.externalized_internal_path
 162  *
 163  * NOTE:        10/2017: Treat the major ns_lookup errors as firmware errors
 164  *
 165  ******************************************************************************/
 166
 167 void
 168 acpi_ut_prefixed_namespace_error(const char *module_name,
 169                                  u32 line_number,
 170                                  union acpi_generic_state *prefix_scope,
 171                                  const char *internal_path,
 172                                  acpi_status lookup_status)
 173 {
 174         char *full_path;
 175         const char *message;
 176
 177         /*
 178          * Main cases:
 179          * 1) Object creation, object must not already exist
 180          * 2) Object lookup, object must exist
 181          */
 182         switch (lookup_status) {
 183         case AE_ALREADY_EXISTS:
 184
 185                 acpi_os_printf(ACPI_MSG_BIOS_ERROR);
 186                 message = "Failure creating named object";
 187                 break;
 188
 189         case AE_NOT_FOUND:
 190
 191                 acpi_os_printf(ACPI_MSG_BIOS_ERROR);
 192                 message = "Could not resolve symbol";
 193                 break;
 194
 195         default:
 196
 197                 acpi_os_printf(ACPI_MSG_ERROR);
 198                 message = "Failure resolving symbol";
 199                 break;
 200         }
 201
 202         /* Concatenate the prefix path and the internal path */
 203
 204         full_path =
 205             acpi_ns_build_prefixed_pathname(prefix_scope, internal_path);
 206
 207         acpi_os_printf("%s [%s], %s", message,
 208                        full_path ? full_path : "Could not get pathname",
 209                        acpi_format_exception(lookup_status));
 210
 211         if (full_path) {
 212                 ACPI_FREE(full_path);
 213         }
 214
 215         ACPI_MSG_SUFFIX;
 216 }
 217
 218 #ifdef __OBSOLETE_FUNCTION
 219 /*******************************************************************************
 220  *
 221  * FUNCTION:    acpi_ut_namespace_error
 222  *
 223  * PARAMETERS:  module_name         - Caller's module name (for error output)
 224  *              line_number         - Caller's line number (for error output)
 225  *              internal_name       - Name or path of the namespace node
 226  *              lookup_status       - Exception code from NS lookup
 227  *
 228  * RETURN:      None
 229  *
 230  * DESCRIPTION: Print error message with the full pathname for the NS node.
 231  *
 232  ******************************************************************************/
 233
 234 void
 235 acpi_ut_namespace_error(const char *module_name,
 236                         u32 line_number,
 237                         const char *internal_name, acpi_status lookup_status)
 238 {
 239         acpi_status status;
 240         u32 bad_name;
 241         char *name = NULL;
 242
 243         ACPI_MSG_REDIRECT_BEGIN;
 244         acpi_os_printf(ACPI_MSG_ERROR);
 245
 246         if (lookup_status == AE_BAD_CHARACTER) {
 247
 248                 /* There is a non-ascii character in the name */
 249
 250                 ACPI_MOVE_32_TO_32(&bad_name,
 251                                    ACPI_CAST_PTR(u32, internal_name));
 252                 acpi_os_printf("[0x%.8X] (NON-ASCII)", bad_name);
 253         } else {
 254                 /* Convert path to external format */
 255
 256                 status =
 257                     acpi_ns_externalize_name(ACPI_UINT32_MAX, internal_name,
 258                                              NULL, &name);
 259
 260                 /* Print target name */
 261
 262                 if (ACPI_SUCCESS(status)) {
 263                         acpi_os_printf("[%s]", name);
 264                 } else {
 265                         acpi_os_printf("[COULD NOT EXTERNALIZE NAME]");
 266                 }
 267
 268                 if (name) {
 269                         ACPI_FREE(name);
 270                 }
 271         }
 272
 273         acpi_os_printf(" Namespace lookup failure, %s",
 274                        acpi_format_exception(lookup_status));
 275
 276         ACPI_MSG_SUFFIX;
 277         ACPI_MSG_REDIRECT_END;
 278 }
 279 #endif
 280
 281 /*******************************************************************************
 282  *
 283  * FUNCTION:    acpi_ut_method_error
 284  *
 285  * PARAMETERS:  module_name         - Caller's module name (for error output)
 286  *              line_number         - Caller's line number (for error output)
 287  *              message             - Error message to use on failure
 288  *              prefix_node         - Prefix relative to the path
 289  *              path                - Path to the node (optional)
 290  *              method_status       - Execution status
 291  *
 292  * RETURN:      None
 293  *
 294  * DESCRIPTION: Print error message with the full pathname for the method.
 295  *
 296  ******************************************************************************/
 297
 298 void
 299 acpi_ut_method_error(const char *module_name,
 300                      u32 line_number,
 301                      const char *message,
 302                      struct acpi_namespace_node *prefix_node,
 303                      const char *path, acpi_status method_status)
 304 {
 305         acpi_status status;
 306         struct acpi_namespace_node *node = prefix_node;
 307
 308         ACPI_MSG_REDIRECT_BEGIN;
 309         acpi_os_printf(ACPI_MSG_ERROR);
 310
 311         if (path) {
 312                 status = acpi_ns_get_node(prefix_node, path,
 313                                           ACPI_NS_NO_UPSEARCH, &node);
 314                 if (ACPI_FAILURE(status)) {
 315                         acpi_os_printf("[Could not get node by pathname]");
 316                 }
 317         }
 318
 319         acpi_ns_print_node_pathname(node, message);
 320         acpi_os_printf(" due to previous error (%s)",
 321                        acpi_format_exception(method_status));
 322
 323         ACPI_MSG_SUFFIX;
 324         ACPI_MSG_REDIRECT_END;
 325 }
 326
 327 #endif                          /* ACPI_NO_ERROR_MESSAGES */