kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ACPICA: Split acpi_format_exception into two parts

Browse source 
Split acpi_format_exception into two parts. New
function is acpi_ut_verify_exception and will be used to
verify exception codes returned by user.

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore 2007-02-02 19:48:19 +03:00 committed by Len Brown
parent 69874165ab
commit 84fb2c9773
4 changed files with 119 additions and 82 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

118
drivers/acpi/utilities/utglobal.c
View file

@ -50,87 +50,6 @@ ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utglobal")
/*******************************************************************************
*
* FUNCTION: acpi_format_exception
*
* PARAMETERS: Status - The acpi_status code to be formatted
*
* RETURN: A string containing the exception text. A valid pointer is
* always returned.
*
* DESCRIPTION: This function translates an ACPI exception into an ASCII string.
*
******************************************************************************/
const char *acpi_format_exception(acpi_status status)
{
acpi_status sub_status;
const char *exception = NULL;
ACPI_FUNCTION_ENTRY();
/*
* Status is composed of two parts, a "type" and an actual code
*/
sub_status = (status & ~AE_CODE_MASK);
switch (status & AE_CODE_MASK) {
case AE_CODE_ENVIRONMENTAL:
if (sub_status <= AE_CODE_ENV_MAX) {
exception = acpi_gbl_exception_names_env[sub_status];
}
break;
case AE_CODE_PROGRAMMER:
if (sub_status <= AE_CODE_PGM_MAX) {
exception =
acpi_gbl_exception_names_pgm[sub_status - 1];
}
break;
case AE_CODE_ACPI_TABLES:
if (sub_status <= AE_CODE_TBL_MAX) {
exception =
acpi_gbl_exception_names_tbl[sub_status - 1];
}
break;
case AE_CODE_AML:
if (sub_status <= AE_CODE_AML_MAX) {
exception =
acpi_gbl_exception_names_aml[sub_status - 1];
}
break;
case AE_CODE_CONTROL:
if (sub_status <= AE_CODE_CTRL_MAX) {
exception =
acpi_gbl_exception_names_ctrl[sub_status - 1];
}
break;
default:
break;
}
if (!exception) {
/* Exception code was not recognized */
ACPI_ERROR((AE_INFO,
"Unknown exception code: 0x%8.8X", status));
exception = "UNKNOWN_STATUS_CODE";
}
return (ACPI_CAST_PTR(const char, exception));
}
/*******************************************************************************
*
* Static global variable initialization.
@ -182,10 +101,45 @@ const char *acpi_gbl_highest_dstate_names[4] = {
/*******************************************************************************
*
* Namespace globals
* FUNCTION: acpi_format_exception
*
* PARAMETERS: Status - The acpi_status code to be formatted
*
* RETURN: A string containing the exception text. A valid pointer is
* always returned.
*
* DESCRIPTION: This function translates an ACPI exception into an ASCII string
* It is here instead of utxface.c so it is always present.
*
******************************************************************************/
const char *acpi_format_exception(acpi_status status)
{
const char *exception = NULL;
ACPI_FUNCTION_ENTRY();
exception = acpi_ut_validate_exception(status);
if (!exception) {
/* Exception code was not recognized */
ACPI_ERROR((AE_INFO,
"Unknown exception code: 0x%8.8X", status));
exception = "UNKNOWN_STATUS_CODE";
}
return (ACPI_CAST_PTR(const char, exception));
}
ACPI_EXPORT_SYMBOL(acpi_format_exception)
/*******************************************************************************
*
* Namespace globals
*
******************************************************************************/
/*
* Predefined ACPI Names (Built-in to the Interpreter)
*

73
drivers/acpi/utilities/utmisc.c
View file

@ -49,6 +49,78 @@
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utmisc")
/*******************************************************************************
*
* FUNCTION: acpi_ut_validate_exception
*
* PARAMETERS: Status - The acpi_status code to be formatted
*
* RETURN: A string containing the exception text. NULL if exception is
* not valid.
*
* DESCRIPTION: This function validates and translates an ACPI exception into
* an ASCII string.
*
******************************************************************************/
const char *acpi_ut_validate_exception(acpi_status status)
{
acpi_status sub_status;
const char *exception = NULL;
ACPI_FUNCTION_ENTRY();
/*
* Status is composed of two parts, a "type" and an actual code
*/
sub_status = (status & ~AE_CODE_MASK);
switch (status & AE_CODE_MASK) {
case AE_CODE_ENVIRONMENTAL:
if (sub_status <= AE_CODE_ENV_MAX) {
exception = acpi_gbl_exception_names_env[sub_status];
}
break;
case AE_CODE_PROGRAMMER:
if (sub_status <= AE_CODE_PGM_MAX) {
exception =
acpi_gbl_exception_names_pgm[sub_status - 1];
}
break;
case AE_CODE_ACPI_TABLES:
if (sub_status <= AE_CODE_TBL_MAX) {
exception =
acpi_gbl_exception_names_tbl[sub_status - 1];
}
break;
case AE_CODE_AML:
if (sub_status <= AE_CODE_AML_MAX) {
exception =
acpi_gbl_exception_names_aml[sub_status - 1];
}
break;
case AE_CODE_CONTROL:
if (sub_status <= AE_CODE_CTRL_MAX) {
exception =
acpi_gbl_exception_names_ctrl[sub_status - 1];
}
break;
default:
break;
}
return (ACPI_CAST_PTR(const char, exception));
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_is_aml_table
@ -62,6 +134,7 @@ ACPI_MODULE_NAME("utmisc")
* data tables that do not contain AML code.
*
******************************************************************************/
u8 acpi_ut_is_aml_table(struct acpi_table_header *table)
{

8
include/acpi/acglobal.h
View file

@ -245,6 +245,14 @@ extern const char *acpi_gbl_highest_dstate_names[4];
extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
/* Exception codes */
extern char const *acpi_gbl_exception_names_env[];
extern char const *acpi_gbl_exception_names_pgm[];
extern char const *acpi_gbl_exception_names_tbl[];
extern char const *acpi_gbl_exception_names_aml[];
extern char const *acpi_gbl_exception_names_ctrl[];
/*****************************************************************************
*
* Namespace globals

2
include/acpi/acutils.h
View file

@ -453,6 +453,8 @@ acpi_ut_short_divide(acpi_integer in_dividend,
/*
* utmisc
*/
const char *acpi_ut_validate_exception(acpi_status status);
u8 acpi_ut_is_aml_table(struct acpi_table_header *table);
acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id);