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| author | Edi Turn <yyxstter@gmail.com> | 2018-07-23 22:08:18 +0800 |
|---|---|---|
| committer | John Crispin <john@phrozen.org> | 2018-07-30 10:42:47 +0200 |
| commit | e9dee194876ffda0bf610ea9382d586c1e619caf (patch) | |
| tree | 96ae87aaa828cc3d8b6f2d67680d7edd6fefed71 | |
| parent | 5647cc7bd49232839281d28c7575fb5e0a84515c (diff) | |
| download | upstream-e9dee194876ffda0bf610ea9382d586c1e619caf.tar.gz upstream-e9dee194876ffda0bf610ea9382d586c1e619caf.tar.bz2 upstream-e9dee194876ffda0bf610ea9382d586c1e619caf.zip | |
grub2: fix packed-not-aligned error on GCC 8
Fix the compile error "packed-not-aligned" when using GCC 8.
Signed-off-by: Edi Turn <yyxstter@gmail.com>
| -rw-r--r-- | package/boot/grub2/patches/0008-Fix-packed-not-aligned-error-on-GCC-8.patch | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/package/boot/grub2/patches/0008-Fix-packed-not-aligned-error-on-GCC-8.patch b/package/boot/grub2/patches/0008-Fix-packed-not-aligned-error-on-GCC-8.patch new file mode 100644 index 0000000000..c9a9884b19 --- /dev/null +++ b/package/boot/grub2/patches/0008-Fix-packed-not-aligned-error-on-GCC-8.patch @@ -0,0 +1,71 @@ +From 563b1da6e6ae7af46cc8354cadb5dab416989f0a Mon Sep 17 00:00:00 2001 +From: Michael Chang <mchang@suse.com> +Date: Mon, 26 Mar 2018 16:52:34 +0800 +Subject: Fix packed-not-aligned error on GCC 8 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +When building with GCC 8, there are several errors regarding packed-not-aligned. + +./include/grub/gpt_partition.h:79:1: error: alignment 1 of ‘struct grub_gpt_partentry’ is less than 8 [-Werror=packed-not-aligned] + +This patch fixes the build error by cleaning up the ambiguity of placing +aligned structure in a packed one. In "struct grub_btrfs_time" and "struct +grub_gpt_part_type", the aligned attribute seems to be superfluous, and also +has to be packed, to ensure the structure is bit-to-bit mapped to the format +laid on disk. I think we could blame to copy and paste error here for the +mistake. In "struct efi_variable", we have to use grub_efi_packed_guid_t, as +the name suggests. :) + +Signed-off-by: Michael Chang <mchang@suse.com> +Tested-by: Michael Chang <mchang@suse.com> +Tested-by: Paul Menzel <paulepanter@users.sourceforge.net> +Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> +--- + grub-core/fs/btrfs.c | 2 +- + include/grub/efiemu/runtime.h | 2 +- + include/grub/gpt_partition.h | 2 +- + 3 files changed, 3 insertions(+), 3 deletions(-) + +diff --git a/grub-core/fs/btrfs.c b/grub-core/fs/btrfs.c +index 4849c1ceb..be195448d 100644 +--- a/grub-core/fs/btrfs.c ++++ b/grub-core/fs/btrfs.c +@@ -175,7 +175,7 @@ struct grub_btrfs_time + { + grub_int64_t sec; + grub_uint32_t nanosec; +-} __attribute__ ((aligned (4))); ++} GRUB_PACKED; + + struct grub_btrfs_inode + { +diff --git a/include/grub/efiemu/runtime.h b/include/grub/efiemu/runtime.h +index 9b6b729f4..36d2dedf4 100644 +--- a/include/grub/efiemu/runtime.h ++++ b/include/grub/efiemu/runtime.h +@@ -29,7 +29,7 @@ struct grub_efiemu_ptv_rel + + struct efi_variable + { +- grub_efi_guid_t guid; ++ grub_efi_packed_guid_t guid; + grub_uint32_t namelen; + grub_uint32_t size; + grub_efi_uint32_t attributes; +diff --git a/include/grub/gpt_partition.h b/include/grub/gpt_partition.h +index 1b32f6725..9668a68c3 100644 +--- a/include/grub/gpt_partition.h ++++ b/include/grub/gpt_partition.h +@@ -28,7 +28,7 @@ struct grub_gpt_part_type + grub_uint16_t data2; + grub_uint16_t data3; + grub_uint8_t data4[8]; +-} __attribute__ ((aligned(8))); ++} GRUB_PACKED; + typedef struct grub_gpt_part_type grub_gpt_part_type_t; + + #define GRUB_GPT_PARTITION_TYPE_EMPTY \ +-- +cgit v1.1-33-g03f6 |