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| /openbmc/linux/arch/arm64/include/asm/ |
| H A D | compat.h | 83335eb4 Thu Apr 12 05:34:16 CDT 2018 Arnd Bergmann <arnd@arndb.de> y2038: arm64: Extend sysvipc compat data structures
Both 32-bit amd 64-bit ARM use the asm-generic header files for their
sysvipc data structures, so no special care is needed to make those
work beyond y2038, with the one exception of compat mode: Since there
is no asm-generic definition of the compat mode IPC structures, ARM64
provides its own copy, and we make those match the changes in the native
asm-generic header files.
There is sufficient padding in these data structures to extend all
timestamps to 64 bit, but on big-endian ARM kernels, the padding
is in the wrong place, so the C library has to ensure it reassembles
a 64-bit time_t correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
83335eb4 Thu Apr 12 05:34:16 CDT 2018 Arnd Bergmann <arnd@arndb.de> y2038: arm64: Extend sysvipc compat data structures
Both 32-bit amd 64-bit ARM use the asm-generic header files for their
sysvipc data structures, so no special care is needed to make those
work beyond y2038, with the one exception of compat mode: Since there
is no asm-generic definition of the compat mode IPC structures, ARM64
provides its own copy, and we make those match the changes in the native
asm-generic header files.
There is sufficient padding in these data structures to extend all
timestamps to 64 bit, but on big-endian ARM kernels, the padding
is in the wrong place, so the C library has to ensure it reassembles
a 64-bit time_t correctly.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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