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alistair23-linux/arch/mips/vdso
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Vincenzo Frascino 932bb934ed
mips: compat: vdso: Use legacy syscalls as fallback 
The generic VDSO implementation uses the Y2038 safe clock_gettime64() and
clock_getres_time64() syscalls as fallback for 32bit VDSO. This breaks
seccomp setups because these syscalls might be not (yet) allowed.

Implement the 32bit variants which use the legacy syscalls and select the
variant in the core library.

The 64bit time variants are not removed because they are required for the
time64 based vdso accessors.

Cc: Paul Burton <paul.burton@mips.com>
Fixes: 00b26474c2 ("lib/vdso: Provide generic VDSO implementation")
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-kselftest@vger.kernel.org
Cc: catalin.marinas@arm.com
Cc: will@kernel.org
Cc: tglx@linutronix.de
Cc: salyzyn@android.com
Cc: 0x7f454c46@gmail.com
Cc: luto@kernel.org
 		2019-09-03 15:35:23 +01:00
..
.gitignore MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
Makefile mips: vdso: Fix flip/flop vdso building bug 2019-07-26 16:43:38 -07:00
config-n32-o32-env.c mips: compat: vdso: Use legacy syscalls as fallback 2019-09-03 15:35:23 +01:00
elf.S mips: Add support for generic vDSO 2019-07-25 21:45:05 -07:00
genvdso.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
genvdso.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
gettimeofday.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sigreturn.S mips: Add support for generic vDSO 2019-07-25 21:45:05 -07:00
vdso.lds.S mips: Add clock_gettime64 entry point 2019-07-25 21:45:52 -07:00
vgettimeofday.c mips: Add clock_gettime64 entry point 2019-07-25 21:45:52 -07:00