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MIPS: VDSO: Respect COMPAT_32BIT_TIME

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If CONFIG_COMPAT_32BIT_TIME is disabled then the vDSO should not
provide any 32-bit time related functionality. This is the intended
effect of the kconfig option and also the fallback system calls would
also not be implemented.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260702-vdso-compat_32bit_time-v3-7-db9f36d8d432@linutronix.de
This commit is contained in:
Thomas Weißschuh
2026-07-07 23:52:53 +02:00
committed by Thomas Gleixner
parent e01abc70af
commit 377e3f2d41
2 changed files with 5 additions and 0 deletions
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arch/mips/vdso/vdso.lds.S
+2
View File
@@ -97,9 +97,11 @@ VERSION
LINUX_2.6 {
#ifdef CONFIG_GENERIC_GETTIMEOFDAY
global:
#if _MIPS_SIM == _MIPS_SIM_ABI64 || defined(CONFIG_COMPAT_32BIT_TIME)
__vdso_clock_gettime;
__vdso_gettimeofday;
__vdso_clock_getres;
#endif
#if _MIPS_SIM != _MIPS_SIM_ABI64
__vdso_clock_gettime64;
__vdso_clock_getres_time64;
arch/mips/vdso/vgettimeofday.c
+3
View File
@@ -12,6 +12,8 @@
#include <vdso/gettime.h>
#if _MIPS_SIM != _MIPS_SIM_ABI64
#ifdef CONFIG_COMPAT_32BIT_TIME
int __vdso_clock_gettime(clockid_t clock,
struct old_timespec32 *ts)
{
@@ -29,6 +31,7 @@ int __vdso_clock_getres(clockid_t clock_id,
{
return __cvdso_clock_getres_time32(clock_id, res);
}
#endif /* CONFIG_COMPAT_32BIT_TIME */
int __vdso_clock_gettime64(clockid_t clock,
struct __kernel_timespec *ts)