diff options
| author | Michael Brown <mcb30@ipxe.org> | 2014-05-19 20:24:04 +0100 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2014-05-20 00:31:51 +0100 |
| commit | 21c43e44cbee8e582abdc9cded06ab012873f176 (patch) | |
| tree | 82e7101589f7643a819bd78131c29f6805152d61 /src/interface/efi/efi_debug.c | |
| parent | 95cff6a4d87a83093d3c685d7743f3c13a44a177 (diff) | |
| download | ipxe-21c43e44cbee8e582abdc9cded06ab012873f176.tar.gz | |
[efi] Make EFI_DEVICE_PATH_TO_TEXT_PROTOCOL optional
Some UEFI systems (observed with a Mac Pro) do not provide
EFI_DEVICE_PATH_TO_TEXT_PROTOCOL. Since we use this protocol only for
debug messages, make it optional and fall back to printing the raw
device path bytes.
Reported-by: Matt Woodward <pxematt@woodwardcc.com>
Tested-by: Matt Woodward <pxematt@woodwardcc.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/interface/efi/efi_debug.c')
| -rw-r--r-- | src/interface/efi/efi_debug.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/src/interface/efi/efi_debug.c b/src/interface/efi/efi_debug.c index 4ed666077..6d834bc83 100644 --- a/src/interface/efi/efi_debug.c +++ b/src/interface/efi/efi_debug.c @@ -37,7 +37,7 @@ FILE_LICENCE ( GPL2_OR_LATER ); /** Device path to text protocol */ static EFI_DEVICE_PATH_TO_TEXT_PROTOCOL *efidpt; -EFI_REQUIRE_PROTOCOL ( EFI_DEVICE_PATH_TO_TEXT_PROTOCOL, &efidpt ); +EFI_REQUEST_PROTOCOL ( EFI_DEVICE_PATH_TO_TEXT_PROTOCOL, &efidpt ); /** * Convert GUID to a printable string @@ -99,19 +99,25 @@ void dbg_efi_devpath ( EFI_DEVICE_PATH_PROTOCOL *path ) { size_t len; /* Convert path to a textual representation */ + if ( ! efidpt ) + goto err_no_efidpt; text = efidpt->ConvertDevicePathToText ( path, TRUE, FALSE ); - if ( ! text ) { - printf ( "<cannot convert>:\n" ); - end = efi_devpath_end ( path ); - len = ( ( ( void * ) end ) - ( ( void * ) path ) + - sizeof ( *end ) ); - dbg_hex_dump_da ( 0, path, len ); - return; - } + if ( ! text ) + goto err_convert; /* Print path */ printf ( "%ls", text ); /* Free path */ bs->FreePool ( text ); + + return; + + err_convert: + err_no_efidpt: + printf ( "<cannot convert>:\n" ); + end = efi_devpath_end ( path ); + len = ( ( ( void * ) end ) - ( ( void * ) path ) + + sizeof ( *end ) ); + dbg_hex_dump_da ( 0, path, len ); } |