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1628f6a742
To be y2038-safe, 32-bit userspace needs to explicitly call the 64-bit safe time APIs. Implement clock_gettime64() in the 32-bit vDSO. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Tested-by: Andreas Larsson <andreas@gaisler.com> Reviewed-by: Andreas Larsson <andreas@gaisler.com> Acked-by: Andreas Larsson <andreas@gaisler.com> Link: https://patch.msgid.link/20260304-vdso-sparc64-generic-2-v6-13-d8eb3b0e1410@linutronix.de
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright 2006 Andi Kleen, SUSE Labs.
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*
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* Fast user context implementation of clock_gettime, gettimeofday, and time.
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*
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* The code should have no internal unresolved relocations.
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* Check with readelf after changing.
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* Also alternative() doesn't work.
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*/
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/*
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* Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.
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*/
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#include <linux/compiler.h>
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#include <linux/types.h>
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#include <vdso/gettime.h>
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#include <asm/vdso/gettimeofday.h>
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#include "../../../../lib/vdso/gettimeofday.c"
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int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
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{
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return __cvdso_gettimeofday(tv, tz);
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}
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int gettimeofday(struct __kernel_old_timeval *, struct timezone *)
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__weak __alias(__vdso_gettimeofday);
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#if defined(CONFIG_SPARC64)
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int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
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{
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return __cvdso_clock_gettime(clock, ts);
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}
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int clock_gettime(clockid_t, struct __kernel_timespec *)
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__weak __alias(__vdso_clock_gettime);
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#else
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int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts)
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{
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return __cvdso_clock_gettime32(clock, ts);
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}
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int clock_gettime(clockid_t, struct old_timespec32 *)
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__weak __alias(__vdso_clock_gettime);
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int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
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{
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return __cvdso_clock_gettime(clock, ts);
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}
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int clock_gettime64(clockid_t, struct __kernel_timespec *)
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__weak __alias(__vdso_clock_gettime64);
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#endif
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