cpio: Disable gcc9 -Waddress-of-packed-member
Disable the -Wadress-of-packaed-member diagnostic for the grub_cpio_find_file function since the result is found to be false postive. Any pointers to member of the 'struct head hd' is aligned even if the structure is packed without paddings. [ 59s] In file included from ../grub-core/fs/cpio.c:51: [ 59s] ../grub-core/fs/cpio_common.c: In function 'grub_cpio_find_file': [ 59s] ../grub-core/fs/cpio_common.c:58:31: error: taking address of packed member of 'struct head' may result in an unaligned pointer value [-Werror=address-of-packed-member] [ 59s] 58 | data->size = read_number (hd.filesize, ARRAY_SIZE (hd.filesize)); [ 59s] | ~~^~~~~~~~~ [ 59s] ../grub-core/fs/cpio_common.c:60:29: error: taking address of packed member of 'struct head' may result in an unaligned pointer value [-Werror=address-of-packed-member] [ 59s] 60 | *mtime = read_number (hd.mtime, ARRAY_SIZE (hd.mtime)); [ 59s] | ~~^~~~~~ [ 59s] ../grub-core/fs/cpio_common.c:61:28: error: taking address of packed member of 'struct head' may result in an unaligned pointer value [-Werror=address-of-packed-member] [ 59s] 61 | modeval = read_number (hd.mode, ARRAY_SIZE (hd.mode)); [ 59s] | ~~^~~~~ [ 59s] ../grub-core/fs/cpio_common.c:62:29: error: taking address of packed member of 'struct head' may result in an unaligned pointer value [-Werror=address-of-packed-member] [ 59s] 62 | namesize = read_number (hd.namesize, ARRAY_SIZE (hd.namesize)); [ 59s] | ~~^~~~~~~~~ [ 59s] In file included from ../grub-core/fs/cpio_be.c:51: [ 59s] ../grub-core/fs/cpio_common.c: In function 'grub_cpio_find_file': [ 59s] ../grub-core/fs/cpio_common.c:58:31: error: taking address of packed member of 'struct head' may result in an unaligned pointer value [-Werror=address-of-packed-member] [ 59s] 58 | data->size = read_number (hd.filesize, ARRAY_SIZE (hd.filesize)); [ 59s] | ~~^~~~~~~~~ [ 59s] ../grub-core/fs/cpio_common.c:60:29: error: taking address of packed member of 'struct head' may result in an unaligned pointer value [-Werror=address-of-packed-member] [ 59s] 60 | *mtime = read_number (hd.mtime, ARRAY_SIZE (hd.mtime)); [ 59s] | ~~^~~~~~ [ 59s] ../grub-core/fs/cpio_common.c:61:28: error: taking address of packed member of 'struct head' may result in an unaligned pointer value [-Werror=address-of-packed-member] [ 59s] 61 | modeval = read_number (hd.mode, ARRAY_SIZE (hd.mode)); [ 59s] | ~~^~~~~ [ 59s] ../grub-core/fs/cpio_common.c:62:29: error: taking address of packed member of 'struct head' may result in an unaligned pointer value [-Werror=address-of-packed-member] [ 59s] 62 | namesize = read_number (hd.namesize, ARRAY_SIZE (hd.namesize)); [ 59s] | ~~^~~~~~~~~ Signed-off-by: Michael Chang <mchang@suse.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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1 changed files with 9 additions and 0 deletions
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@ -36,6 +36,11 @@ struct grub_archelp_data
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grub_off_t size;
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grub_off_t size;
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};
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};
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#if __GNUC__ >= 9
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
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#endif
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static grub_err_t
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static grub_err_t
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grub_cpio_find_file (struct grub_archelp_data *data, char **name,
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grub_cpio_find_file (struct grub_archelp_data *data, char **name,
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grub_int32_t *mtime, grub_uint32_t *mode)
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grub_int32_t *mtime, grub_uint32_t *mode)
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@ -96,6 +101,10 @@ grub_cpio_find_file (struct grub_archelp_data *data, char **name,
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return GRUB_ERR_NONE;
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return GRUB_ERR_NONE;
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}
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}
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#if __GNUC__ >= 9
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#pragma GCC diagnostic pop
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#endif
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static char *
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static char *
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grub_cpio_get_link_target (struct grub_archelp_data *data)
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grub_cpio_get_link_target (struct grub_archelp_data *data)
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{
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{
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