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sparc: 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: Philippe Mathieu-Daudé <philmd@oss.qualcomm.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260702-vdso-compat_32bit_time-v3-8-db9f36d8d432@linutronix.de
This commit is contained in:
Thomas Weißschuh
2026-07-07 23:52:53 +02:00
committed by Thomas Gleixner
parent 377e3f2d41
commit 2700297b69
2 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/sparc/vdso/vclock_gettime.c
+4
View File
@@ -21,6 +21,7 @@
#include "../../../../lib/vdso/gettimeofday.c"
#if defined(CONFIG_SPARC64) || defined(CONFIG_COMPAT_32BIT_TIME)
int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
{
return __cvdso_gettimeofday(tv, tz);
@@ -28,6 +29,7 @@ int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
int gettimeofday(struct __kernel_old_timeval *, struct timezone *)
__weak __alias(__vdso_gettimeofday);
#endif
#if defined(CONFIG_SPARC64)
int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
@@ -40,6 +42,7 @@ int clock_gettime(clockid_t, struct __kernel_timespec *)
#else
#if defined(CONFIG_COMPAT_32BIT_TIME)
int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts)
{
return __cvdso_clock_gettime32(clock, ts);
@@ -47,6 +50,7 @@ int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts)
int clock_gettime(clockid_t, struct old_timespec32 *)
__weak __alias(__vdso_clock_gettime);
#endif
int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
{
arch/sparc/vdso/vdso32/vdso32.lds.S
+4 -2
View File
@@ -15,12 +15,14 @@
VERSION {
LINUX_2.6 {
global:
#ifdef CONFIG_COMPAT_32BIT_TIME
clock_gettime;
__vdso_clock_gettime;
clock_gettime64;
__vdso_clock_gettime64;
gettimeofday;
__vdso_gettimeofday;
#endif
clock_gettime64;
__vdso_clock_gettime64;
local: *;
};
}