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[efi] Perform meaningful error code conversions

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Exploit the redefinition of iPXE error codes to include a "platform
error code" to allow for meaningful conversion of EFI_STATUS values to
iPXE errors and vice versa.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2013-04-18 21:29:53 +01:00
parent 7348035231
commit 54409583e2
20 changed files with 212 additions and 200 deletions
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11
src/interface/efi/efi_init.c
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@@ -20,6 +20,7 @@
FILE_LICENCE ( GPL2_OR_LATER );
#include <string.h>
#include <errno.h>
#include <ipxe/efi/efi.h>
#include <ipxe/efi/Protocol/LoadedImage.h>
#include <ipxe/efi/Protocol/DevicePath.h>
@@ -94,6 +95,7 @@ EFI_STATUS efi_init ( EFI_HANDLE image_handle,
void *loaded_image;
void *loaded_image_path;
EFI_STATUS efirc;
int rc;
/* Store image handle and system table pointer for future use */
efi_image_handle = image_handle;
@@ -149,8 +151,9 @@ EFI_STATUS efi_init ( EFI_HANDLE image_handle,
&efi_loaded_image_protocol_guid,
&loaded_image, image_handle, NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL ) ) != 0 ) {
rc = -EEFI ( efirc );
DBGC ( systab, "EFI could not get loaded image protocol: %s",
efi_strerror ( efirc ) );
strerror ( rc ) );
return efirc;
}
efi_loaded_image = loaded_image;
@@ -162,8 +165,9 @@ EFI_STATUS efi_init ( EFI_HANDLE image_handle,
&efi_loaded_image_device_path_protocol_guid,
&loaded_image_path, image_handle, NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL ) ) != 0 ) {
rc = -EEFI ( efirc );
DBGC ( systab, "EFI could not get loaded image device path "
"protocol: %s", efi_strerror ( efirc ) );
"protocol: %s", strerror ( rc ) );
return efirc;
}
efi_loaded_image_path = loaded_image_path;
@@ -179,8 +183,9 @@ EFI_STATUS efi_init ( EFI_HANDLE image_handle,
if ( ( efirc = bs->CreateEvent ( EVT_SIGNAL_EXIT_BOOT_SERVICES,
TPL_CALLBACK, efi_shutdown_hook,
NULL, &efi_shutdown_event ) ) != 0 ) {
rc = -EEFI ( efirc );
DBGC ( systab, "EFI could not create ExitBootServices event: "
"%s\n", efi_strerror ( efirc ) );
"%s\n", strerror ( rc ) );
return efirc;
}