github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 04:34:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

MIPS: VDSO: Respect COMPAT_32BIT_TIME

Browse Source 
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 2026-07-02 10:21:31 +02:00 committed by Thomas Gleixner
parent e01abc70af
commit 377e3f2d41
2 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/mips/vdso/vdso.lds.S
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;

3
arch/mips/vdso/vgettimeofday.c
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)