[dpdk-stable] [PATCH v4] eal: fix memory mapping for 32-bit targets
Lance Richardson
lance.richardson at broadcom.com
Tue May 11 17:56:20 CEST 2021
> v4: Identical to v1, with <sys/types.h> now included in rte_eal_paging.h
> to (hopefully) make off_t available for Windows builds.
With this version, using off_t is no longer a problem, however based on the
new compilation error it appears that for Windows, off_t is a 32-bit type
while size_t is a 64-bit type:
../lib/eal/windows/eal_memory.c:519:37: error: shift count >= width of
type [-Werror,-Wshift-count-overflow]
DWORD offset_high = (DWORD)(offset >> 32);
^ ~~
So the options seem to be to either use uint64_t for the offset parameter
as in patch v3, or else introduce something like:
typedef uint64_t rte_off_t;
Thoughts/opinions?
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