The following commit has been merged into the timers/vdso branch of tip:
Commit-ID: 1149dcdfc9ef4b3fa90b431a5752da53dcadb0d2
Gitweb: https://git.kernel.org/tip/1149dcdfc9ef4b3fa90b431a5752da53dcadb0d2
Author: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
AuthorDate: Tue, 23 Dec 2025 07:59:18 +01:00
Committer: Thomas Gleixner <tglx@kernel.org>
CommitterDate: Tue, 13 Jan 2026 14:42:23 +01:00
ARM: VDSO: Provide clock_getres_time64()
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>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-7-97ea7a06a543@linutronix.de
---
arch/arm/kernel/vdso.c | 1 +
arch/arm/vdso/vdso.lds.S | 1 +
arch/arm/vdso/vgettimeofday.c | 5 +++++
3 files changed, 7 insertions(+)
diff --git a/arch/arm/kernel/vdso.c b/arch/arm/kernel/vdso.c
index 566c40f..0108f33 100644
--- a/arch/arm/kernel/vdso.c
+++ b/arch/arm/kernel/vdso.c
@@ -162,6 +162,7 @@ static void __init patch_vdso(void *ehdr)
vdso_nullpatch_one(&einfo, "__vdso_clock_gettime");
vdso_nullpatch_one(&einfo, "__vdso_clock_gettime64");
vdso_nullpatch_one(&einfo, "__vdso_clock_getres");
+ vdso_nullpatch_one(&einfo, "__vdso_clock_getres_time64");
}
}
diff --git a/arch/arm/vdso/vdso.lds.S b/arch/arm/vdso/vdso.lds.S
index 7c08371..74d8d8b 100644
--- a/arch/arm/vdso/vdso.lds.S
+++ b/arch/arm/vdso/vdso.lds.S
@@ -74,6 +74,7 @@ VERSION
__vdso_gettimeofday;
__vdso_clock_getres;
__vdso_clock_gettime64;
+ __vdso_clock_getres_time64;
local: *;
};
}
diff --git a/arch/arm/vdso/vgettimeofday.c b/arch/arm/vdso/vgettimeofday.c
index 3554aa3..f7a2f5d 100644
--- a/arch/arm/vdso/vgettimeofday.c
+++ b/arch/arm/vdso/vgettimeofday.c
@@ -34,6 +34,11 @@ 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)