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ACPICA: Utilities: Introduce acpi_log_error() to improve portability

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Invocations like fprintf(stderr) and perror() are not portable, this patch
introduces acpi_log_error() as a replacement, it is implemented using new
portable API - acpi_ut_file_vprintf().

Note that though acpi_os_initialize() need to be invoked prior than using
this new API, since no users are introduced in this patch, such invocations
are not added for applications that link utprint.c in this patch. Futher
patches that introduce users of acpi_log_error() should take care of this.

This patch is only useful for ACPICA applications, most of which are not
shipped in the Linux kernel.

Note that follow-up commits will update acpidump to use this new API to
improve portability. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lv Zheng 2014-07-08 10:07:06 +08:00 committed by Rafael J. Wysocki
parent 80a648c12e
commit 2e70da4c51
3 changed files with 50 additions and 0 deletions
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26
drivers/acpi/acpica/utdebug.c
View File

@ -561,3 +561,29 @@ acpi_ut_ptr_exit(u32 line_number,
}
#endif
#ifdef ACPI_APPLICATION
/*******************************************************************************
*
* FUNCTION: acpi_log_error
*
* PARAMETERS: format - Printf format field
* ... - Optional printf arguments
*
* RETURN: None
*
* DESCRIPTION: Print error message to the console, used by applications.
*
******************************************************************************/
void ACPI_INTERNAL_VAR_XFACE acpi_log_error(const char *format, ...)
{
va_list args;
va_start(args, format);
(void)acpi_ut_file_vprintf(ACPI_FILE_ERR, format, args);
va_end(args);
}
ACPI_EXPORT_SYMBOL(acpi_log_error)
#endif

20
include/acpi/acpixf.h
View File

@ -335,6 +335,23 @@ ACPI_GLOBAL(u8, acpi_gbl_system_awake_and_running);
#endif /* ACPI_DEBUG_OUTPUT */
/*
* Application prototypes
*
* All interfaces used by application will be configured
* out of the ACPICA build unless the ACPI_APPLICATION
* flag is defined.
*/
#ifdef ACPI_APPLICATION
#define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
prototype;
#else
#define ACPI_APP_DEPENDENT_RETURN_VOID(prototype) \
static ACPI_INLINE prototype {return;}
#endif /* ACPI_APPLICATION */
/*****************************************************************************
*
* ACPICA public interface prototypes
@ -861,6 +878,9 @@ ACPI_DBG_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(6)
const char *module_name,
u32 component_id,
const char *format, ...))
ACPI_APP_DEPENDENT_RETURN_VOID(ACPI_PRINTF_LIKE(1)
void ACPI_INTERNAL_VAR_XFACE
acpi_log_error(const char *format, ...))
/*
* Divergences

4
include/acpi/platform/acenv.h
View File

@ -423,8 +423,12 @@ typedef char *va_list;
#ifdef ACPI_APPLICATION
#include <stdio.h>
#define ACPI_FILE FILE *
#define ACPI_FILE_OUT stdout
#define ACPI_FILE_ERR stderr
#else
#define ACPI_FILE void *
#define ACPI_FILE_OUT NULL
#define ACPI_FILE_ERR NULL
#endif /* ACPI_APPLICATION */
#endif /* ACPI_FILE */