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Date:      Wed, 6 Sep 2017 23:25:01 -0700
From:      Conrad Meyer <cem@freebsd.org>
To:        Warner Losh <imp@freebsd.org>
Cc:        src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org,  svn-src-head@freebsd.org
Subject:   Re: svn commit: r323063 - head/sys/boot/efi/boot1
Message-ID:  <CAG6CVpVBwpXcFFQ3CrDozUvw8vK6phG1ZH_71mSTP_BsB6MNgw@mail.gmail.com>
In-Reply-To: <201708311732.v7VHWEvs037245@repo.freebsd.org>
References:  <201708311732.v7VHWEvs037245@repo.freebsd.org>

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This seems to break world on ARM due to the size difference CHAR16 vs
ARM wchat_t (currently 32-bit in loader, apparently).

Best,
Conrad

On Thu, Aug 31, 2017 at 10:32 AM, Warner Losh <imp@freebsd.org> wrote:
> Author: imp
> Date: Thu Aug 31 17:32:14 2017
> New Revision: 323063
> URL: https://svnweb.freebsd.org/changeset/base/323063
>
> Log:
>   boot1.efi: print more info about where boot1.efi is loaded from
>
>   Print the device that boot1.efi was loaded from. Print the path as
>   well (since it isn't included in DeviceHandle). Move block where we do
>   this earlier so all the block handle code is now together.
>
>   Sponsored by: Netflix
>
> Modified:
>   head/sys/boot/efi/boot1/boot1.c
>
> Modified: head/sys/boot/efi/boot1/boot1.c
> ==============================================================================
> --- head/sys/boot/efi/boot1/boot1.c     Thu Aug 31 17:32:09 2017        (r323062)
> +++ head/sys/boot/efi/boot1/boot1.c     Thu Aug 31 17:32:14 2017        (r323063)
> @@ -344,6 +344,7 @@ efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE *Xsystab)
>         EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl = NULL;
>         SIMPLE_TEXT_OUTPUT_INTERFACE *conout = NULL;
>         UINTN i, max_dim, best_mode, cols, rows, hsize, nhandles;
> +       CHAR16 *text;
>
>         /* Basic initialization*/
>         ST = Xsystab;
> @@ -387,6 +388,27 @@ efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE *Xsystab)
>         }
>         putchar('\n');
>
> +       /* Determine the devpath of our image so we can prefer it. */
> +       status = BS->HandleProtocol(IH, &LoadedImageGUID, (VOID**)&img);
> +       imgpath = NULL;
> +       if (status == EFI_SUCCESS) {
> +               text = efi_devpath_name(img->FilePath);
> +               printf("   Load Path: %S\n", text);
> +               efi_free_devpath_name(text);
> +
> +               status = BS->HandleProtocol(img->DeviceHandle, &DevicePathGUID,
> +                   (void **)&imgpath);
> +               if (status != EFI_SUCCESS) {
> +                       DPRINTF("Failed to get image DevicePath (%lu)\n",
> +                           EFI_ERROR_CODE(status));
> +               } else {
> +                       text = efi_devpath_name(imgpath);
> +                       printf("   Load Device: %S\n", text);
> +                       efi_free_devpath_name(text);
> +               }
> +
> +       }
> +
>         /* Get all the device handles */
>         hsize = (UINTN)NUM_HANDLES_INIT * sizeof(EFI_HANDLE);
>         if ((status = BS->AllocatePool(EfiLoaderData, hsize, (void **)&handles))
> @@ -421,24 +443,6 @@ efi_main(EFI_HANDLE Ximage, EFI_SYSTEM_TABLE *Xsystab)
>         nhandles = hsize / sizeof(*handles);
>         printf("   Probing %zu block devices...", nhandles);
>         DPRINTF("\n");
> -
> -       /* Determine the devpath of our image so we can prefer it. */
> -       status = BS->HandleProtocol(IH, &LoadedImageGUID, (VOID**)&img);
> -       imgpath = NULL;
> -       if (status == EFI_SUCCESS) {
> -               status = BS->HandleProtocol(img->DeviceHandle, &DevicePathGUID,
> -                   (void **)&imgpath);
> -               if (status != EFI_SUCCESS)
> -                       DPRINTF("Failed to get image DevicePath (%lu)\n",
> -                           EFI_ERROR_CODE(status));
> -#ifdef EFI_DEBUG
> -               {
> -                       CHAR16 *text = efi_devpath_name(imgpath);
> -                       DPRINTF("boot1 imagepath: %S\n", text);
> -                       efi_free_devpath_name(text);
> -               }
> -#endif
> -       }
>
>         for (i = 0; i < nhandles; i++)
>                 probe_handle_status(handles[i], imgpath);
>



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