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author | Arnd Bergmann <arnd@arndb.de> | 2015-05-05 23:19:43 +0200 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2018-04-20 16:20:15 +0200 |
commit | b497ef570ecdeeaef4335ecc4f712cbaae0918a5 (patch) | |
tree | 59c2325b641b111eced3ed86d45f1ecab7d3835e /ipc/sem.c | |
parent | d0b67de998025210c31bbceb79739df8e28a3d4f (diff) | |
download | lwn-b497ef570ecdeeaef4335ecc4f712cbaae0918a5.tar.gz lwn-b497ef570ecdeeaef4335ecc4f712cbaae0918a5.zip |
y2038: xtensa: Extend sysvipc data structures
xtensa, uses a nonstandard variation of the generic sysvipc
data structures, intended to have the padding moved around
so it can deal with big-endian 32-bit user space that has
64-bit time_t.
xtensa tries hard to define the structures so they work
in both big-endian and little-endian systems with padding
on the right side.
However, they only succeeded for for two of the three structures,
and their struct shmid64_ds ended up being defined in two
identical copies, and the big-endian one is wrong.
This takes just take the same approach here that we have for
the asm-generic headers and adds separate 32-bit fields for the
upper halves of the timestamps, to let libc deal with the mess
in user space.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'ipc/sem.c')
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