efi_loader: flesh out device-path to text

It needs to handle more device-path node types, and also multiple levels
of path hierarchy.  To simplify this, initially construct utf8 string to
a temporary buffer, and then allocate the real utf16 buffer that is
returned.  This should be mostly for debugging or at least not critical-
path so an extra copy won't hurt, and is saner than the alternative.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Rob Clark 2017-09-13 18:05:30 -04:00 committed by Alexander Graf
parent 9309a1b76c
commit adae4313cd
3 changed files with 183 additions and 65 deletions

View file

@ -80,6 +80,8 @@ extern struct efi_simple_input_interface efi_con_in;
extern const struct efi_console_control_protocol efi_console_control;
extern const struct efi_device_path_to_text_protocol efi_device_path_to_text;
uint16_t *efi_dp_str(struct efi_device_path *dp);
extern const efi_guid_t efi_guid_console_control;
extern const efi_guid_t efi_guid_device_path;
extern const efi_guid_t efi_guid_loaded_image;