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authorLv Zheng <lv.zheng@intel.com>2014-07-08 02:07:19 (GMT)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-07-08 12:22:26 (GMT)
commit3c9349c93712f68dc9fc4caadb2fc1b7c9407316 (patch)
tree98684dea66a38606bbc05ba19190c20c89ab0277 /tools/power
parentd9cf147dbd9cef05fa08bcc1dda9b2d14d9fe567 (diff)
ACPICA: Common: Enhance cm_get_file_size() to improve portability
This patch uses abstract file IO and acpi_log_error() APIs to enhance cm_get_file_size() so that applications that invoke this API could have portability improved. With actual references added to abstract file IO and acpi_log_error(), the applications need to link oslibcfs.o, utdebug.o, utexcep.o, utmath.o, utprint.o and utxferror.o. It is also required to add acpi_os_initialize() invocations if an application starts to use acpi_log_error(). acpidump has already invoked acpi_os_initialize() in this way. 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>
Diffstat (limited to 'tools/power')
-rw-r--r--tools/power/acpi/Makefile3
-rw-r--r--tools/power/acpi/common/cmfsize.c20
2 files changed, 14 insertions, 9 deletions
diff --git a/tools/power/acpi/Makefile b/tools/power/acpi/Makefile
index f88a251..3d1537b 100644
--- a/tools/power/acpi/Makefile
+++ b/tools/power/acpi/Makefile
@@ -112,11 +112,14 @@ DUMP_OBJS = \
tbprint.o\
tbxfroot.o\
utbuffer.o\
+ utdebug.o\
utexcep.o\
utglobal.o\
utmath.o\
+ utprint.o\
utstring.o\
utxferror.o\
+ oslibcfs.o\
oslinuxtbl.o\
cmfsize.o\
getopt.o
diff --git a/tools/power/acpi/common/cmfsize.c b/tools/power/acpi/common/cmfsize.c
index 5140e5e..f4b9533 100644
--- a/tools/power/acpi/common/cmfsize.c
+++ b/tools/power/acpi/common/cmfsize.c
@@ -58,44 +58,46 @@ ACPI_MODULE_NAME("cmfsize")
* RETURN: File Size. On error, -1 (ACPI_UINT32_MAX)
*
* DESCRIPTION: Get the size of a file. Uses seek-to-EOF. File must be open.
- * Does not disturb the current file pointer. Uses perror for
- * error messages.
+ * Does not disturb the current file pointer.
*
******************************************************************************/
-u32 cm_get_file_size(FILE * file)
+u32 cm_get_file_size(ACPI_FILE file)
{
long file_size;
long current_offset;
+ acpi_status status;
/* Save the current file pointer, seek to EOF to obtain file size */
- current_offset = ftell(file);
+ current_offset = acpi_os_get_file_offset(file);
if (current_offset < 0) {
goto offset_error;
}
- if (fseek(file, 0, SEEK_END)) {
+ status = acpi_os_set_file_offset(file, 0, ACPI_FILE_END);
+ if (ACPI_FAILURE(status)) {
goto seek_error;
}
- file_size = ftell(file);
+ file_size = acpi_os_get_file_offset(file);
if (file_size < 0) {
goto offset_error;
}
/* Restore original file pointer */
- if (fseek(file, current_offset, SEEK_SET)) {
+ status = acpi_os_set_file_offset(file, current_offset, ACPI_FILE_BEGIN);
+ if (ACPI_FAILURE(status)) {
goto seek_error;
}
return ((u32)file_size);
offset_error:
- perror("Could not get file offset");
+ acpi_log_error("Could not get file offset");
return (ACPI_UINT32_MAX);
seek_error:
- perror("Could not seek file");
+ acpi_log_error("Could not set file offset");
return (ACPI_UINT32_MAX);
}

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