[efi] Show details of intercepted LoadImage() calls

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/interface/efi/efi_wrap.c b/src/interface/efi/efi_wrap.c
index 2108cc2af970cb2a7ca7495134c70ec07e49d79e..43cab9babcb64b588d4a8eecf6b8a128af5059e7 100644 (file)
--- a/src/interface/efi/efi_wrap.c
+++ b/src/interface/efi/efi_wrap.c
@@ -135,6 +135,35 @@ efi_locate_handle_wrapper ( EFI_LOCATE_SEARCH_TYPE search_type,
        return efirc;
 }
 
+/**
+ * Wrap LoadImage()
+ *
+ */
+static EFI_STATUS EFIAPI
+efi_load_image_wrapper ( BOOLEAN boot_policy, EFI_HANDLE parent_image_handle,
+                        EFI_DEVICE_PATH_PROTOCOL *device_path,
+                        VOID *source_buffer, UINTN source_size,
+                        EFI_HANDLE *image_handle ) {
+       EFI_BOOT_SERVICES *bs = efi_systab->BootServices;
+       void *retaddr = __builtin_return_address ( 0 );
+       EFI_STATUS efirc;
+
+       DBGC ( colour, "LoadImage ( %d, %p %s, ", boot_policy,
+              parent_image_handle, efi_handle_name ( parent_image_handle ) );
+       DBGC ( colour, "%s, %p, %#llx, ... ) ",
+              efi_devpath_text ( device_path ), source_buffer,
+              ( ( unsigned long long ) source_size ) );
+       efirc = bs->LoadImage ( boot_policy, parent_image_handle, device_path,
+                               source_buffer, source_size, image_handle );
+       DBGC ( colour, "= %s ( ", efi_status ( efirc ) );
+       if ( efirc == 0 ) {
+               DBGC ( colour, "%p %s ", *image_handle,
+                      efi_handle_name ( *image_handle ) );
+       }
+       DBGC ( colour, ") -> %p\n", retaddr );
+       return efirc;
+}
+
 /**
  * Wrap LocateDevicePath()
  *
@@ -222,6 +251,7 @@ void efi_wrap ( EFI_HANDLE handle, EFI_LOADED_IMAGE_PROTOCOL *loaded ) {
        efi_bs_wrapper.HandleProtocol   = efi_handle_protocol_wrapper;
        efi_bs_wrapper.LocateHandle     = efi_locate_handle_wrapper;
        efi_bs_wrapper.LocateDevicePath = efi_locate_device_path_wrapper;
+       efi_bs_wrapper.LoadImage        = efi_load_image_wrapper;
        efi_bs_wrapper.OpenProtocol     = efi_open_protocol_wrapper;
        efi_bs_wrapper.LocateProtocol   = efi_locate_protocol_wrapper;