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authorBlue Swirl <blauwirbel@gmail.com>2011-08-07 19:43:38 +0000
committerBlue Swirl <blauwirbel@gmail.com>2011-08-21 20:01:57 +0000
commit242cca4fdfadafca39fa918e78fea6ef89d6decc (patch)
treed83567b4e8c5e370fcc29511a2a00c30476294d1 /hw/lm32_uart.c
parentfe87aa83c6d0c78bc29230ace4598363cdf4c835 (diff)
downloadfocaccia-qemu-242cca4fdfadafca39fa918e78fea6ef89d6decc.tar.gz
focaccia-qemu-242cca4fdfadafca39fa918e78fea6ef89d6decc.zip
fdc: avoid structure holes spotted by pahole
Edited report from pahole on amd64 host:
struct FDCtrl {
	uint8_t                    version;              /*     0     1 */

	/* XXX 7 bytes hole, try to pack */

	qemu_irq                   irq;                  /*     8     8 */
	int                        dma_chann;            /*    16     4 */

	/* XXX 4 bytes hole, try to pack */
...
	uint8_t                    status2;              /*    42     1 */

	/* XXX 5 bytes hole, try to pack */

	uint8_t *                  fifo;                 /*    48     8 */
...
	uint8_t                    pwrd;                 /*    76     1 */

	/* XXX 3 bytes hole, try to pack */

	int                        sun4m;                /*    80     4 */
	uint8_t                    num_floppies;         /*    84     1 */

	/* XXX 3 bytes hole, try to pack */

	FDrive                     drives[2];            /*    88    64 */
	/* --- cacheline 2 boundary (128 bytes) was 24 bytes ago --- */
	int                        reset_sensei;         /*   152     4 */

	/* size: 160, cachelines: 3 */
	/* sum members: 134, holes: 5, sum holes: 22 */
	/* padding: 4 */
	/* last cacheline: 32 bytes */
};	/* definitions: 1 */

Fix by rearranging the structure to avoid padding.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'hw/lm32_uart.c')
0 files changed, 0 insertions, 0 deletions