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arm64: vdso32: Provide clock_getres_time64()

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For consistency with __vdso_clock_gettime64() there should also be a
64-bit variant of clock_getres(). This will allow the extension of
CONFIG_COMPAT_32BIT_TIME to the vDSO and finally the removal of 32-bit
time types from the kernel and UAPI.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-8-97ea7a06a543@linutronix.de
This commit is contained in:
Thomas Weißschuh
2025-12-23 07:59:19 +01:00
committed by Thomas Gleixner
parent 1149dcdfc9
commit f10c2e72b5
2 changed files with 6 additions and 0 deletions
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1
arch/arm64/kernel/vdso32/vdso.lds.S
View File

@@ -86,6 +86,7 @@ VERSION
__vdso_gettimeofday;
__vdso_clock_getres;
__vdso_clock_gettime64;
__vdso_clock_getres_time64;
local: *;
};
}

5
arch/arm64/kernel/vdso32/vgettimeofday.c
View File

@@ -32,6 +32,11 @@ int __vdso_clock_getres(clockid_t clock_id,
return __cvdso_clock_getres_time32(clock_id, res);
}
int __vdso_clock_getres_time64(clockid_t clock_id, struct __kernel_timespec *res)
{
return __cvdso_clock_getres(clock_id, res);
}
/* Avoid unresolved references emitted by GCC */
void __aeabi_unwind_cpp_pr0(void)