From: Michael Tremer Date: Fri, 26 Apr 2019 15:11:17 +0000 (+0100) Subject: grub: Fix build error with GCC 8 X-Git-Tag: v2.23-core133~175 X-Git-Url: http://git.ipfire.org/?p=ipfire-2.x.git;a=commitdiff_plain;h=2cecfd0fdb1ab4b0b7c1b9468a61c8d1d7d06961 grub: Fix build error with GCC 8 Signed-off-by: Michael Tremer --- diff --git a/lfs/grub b/lfs/grub index 8e4aab2234..56cc9b5577 100644 --- a/lfs/grub +++ b/lfs/grub @@ -100,6 +100,7 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/grub-2.02_disable_vga_fallback.patch cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/grub-2.02-xfs-accept-filesystem-with-sparse-inodes.patch + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/grub-2.02-fix-packed-not-aligned-error-on-gcc-8.patch # Install unifont cp -v $(DIR_DL)/unifont-7.0.03.pcf.gz $(DIR_APP)/unifont.pcf.gz diff --git a/src/patches/grub-2.02-fix-packed-not-aligned-error-on-gcc-8.patch b/src/patches/grub-2.02-fix-packed-not-aligned-error-on-gcc-8.patch new file mode 100644 index 0000000000..51ee7dc86c --- /dev/null +++ b/src/patches/grub-2.02-fix-packed-not-aligned-error-on-gcc-8.patch @@ -0,0 +1,72 @@ +From 563b1da6e6ae7af46cc8354cadb5dab416989f0a Mon Sep 17 00:00:00 2001 +From: Michael Chang +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 +Tested-by: Michael Chang +Tested-by: Paul Menzel +Reviewed-by: Daniel Kiper +--- + 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 4849c1c..be19544 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 9b6b729..36d2ded 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 1b32f67..9668a68 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 v1.0-41-gc330 +