From 8dabe7245bbc134f2cfcc12cde75c019dab924cc Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 7 Jan 2019 00:33:08 +0100 Subject: y2038: syscalls: rename y2038 compat syscalls A lot of system calls that pass a time_t somewhere have an implementation using a COMPAT_SYSCALL_DEFINEx() on 64-bit architectures, and have been reworked so that this implementation can now be used on 32-bit architectures as well. The missing step is to redefine them using the regular SYSCALL_DEFINEx() to get them out of the compat namespace and make it possible to build them on 32-bit architectures. Any system call that ends in 'time' gets a '32' suffix on its name for that version, while the others get a '_time32' suffix, to distinguish them from the normal version, which takes a 64-bit time argument in the future. In this step, only 64-bit architectures are changed, doing this rename first lets us avoid touching the 32-bit architectures twice. Acked-by: Catalin Marinas Signed-off-by: Arnd Bergmann --- kernel/time/hrtimer.c | 2 +- kernel/time/posix-stubs.c | 25 +++++++++++++------------ kernel/time/posix-timers.c | 32 ++++++++++++++++---------------- kernel/time/time.c | 8 ++++---- 4 files changed, 34 insertions(+), 33 deletions(-) (limited to 'kernel/time') diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index f5cfa1b73d6f..0f5f96075110 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -1771,7 +1771,7 @@ SYSCALL_DEFINE2(nanosleep, struct __kernel_timespec __user *, rqtp, #ifdef CONFIG_COMPAT_32BIT_TIME -COMPAT_SYSCALL_DEFINE2(nanosleep, struct old_timespec32 __user *, rqtp, +SYSCALL_DEFINE2(nanosleep_time32, struct old_timespec32 __user *, rqtp, struct old_timespec32 __user *, rmtp) { struct timespec64 tu; diff --git a/kernel/time/posix-stubs.c b/kernel/time/posix-stubs.c index a51895486e5e..67df65f887ac 100644 --- a/kernel/time/posix-stubs.c +++ b/kernel/time/posix-stubs.c @@ -45,6 +45,7 @@ SYS_NI(timer_delete); SYS_NI(clock_adjtime); SYS_NI(getitimer); SYS_NI(setitimer); +SYS_NI(clock_adjtime32); #ifdef __ARCH_WANT_SYS_ALARM SYS_NI(alarm); #endif @@ -150,16 +151,16 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, #ifdef CONFIG_COMPAT COMPAT_SYS_NI(timer_create); -COMPAT_SYS_NI(clock_adjtime); -COMPAT_SYS_NI(timer_settime); -COMPAT_SYS_NI(timer_gettime); COMPAT_SYS_NI(getitimer); COMPAT_SYS_NI(setitimer); #endif #ifdef CONFIG_COMPAT_32BIT_TIME -COMPAT_SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, - struct old_timespec32 __user *, tp) +SYS_NI(timer_settime32); +SYS_NI(timer_gettime32); + +SYSCALL_DEFINE2(clock_settime32, const clockid_t, which_clock, + struct old_timespec32 __user *, tp) { struct timespec64 new_tp; @@ -171,8 +172,8 @@ COMPAT_SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock, return do_sys_settimeofday64(&new_tp, NULL); } -COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock, - struct old_timespec32 __user *, tp) +SYSCALL_DEFINE2(clock_gettime32, clockid_t, which_clock, + struct old_timespec32 __user *, tp) { int ret; struct timespec64 kernel_tp; @@ -186,8 +187,8 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock, return 0; } -COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock, - struct old_timespec32 __user *, tp) +SYSCALL_DEFINE2(clock_getres_time32, clockid_t, which_clock, + struct old_timespec32 __user *, tp) { struct timespec64 rtn_tp = { .tv_sec = 0, @@ -206,9 +207,9 @@ COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock, } } -COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags, - struct old_timespec32 __user *, rqtp, - struct old_timespec32 __user *, rmtp) +SYSCALL_DEFINE4(clock_nanosleep_time32, clockid_t, which_clock, int, flags, + struct old_timespec32 __user *, rqtp, + struct old_timespec32 __user *, rmtp) { struct timespec64 t; diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index de79f85ae14f..29176635991f 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -730,8 +730,8 @@ SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id, #ifdef CONFIG_COMPAT_32BIT_TIME -COMPAT_SYSCALL_DEFINE2(timer_gettime, timer_t, timer_id, - struct old_itimerspec32 __user *, setting) +SYSCALL_DEFINE2(timer_gettime32, timer_t, timer_id, + struct old_itimerspec32 __user *, setting) { struct itimerspec64 cur_setting; @@ -903,9 +903,9 @@ SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags, } #ifdef CONFIG_COMPAT_32BIT_TIME -COMPAT_SYSCALL_DEFINE4(timer_settime, timer_t, timer_id, int, flags, - struct old_itimerspec32 __user *, new, - struct old_itimerspec32 __user *, old) +SYSCALL_DEFINE4(timer_settime32, timer_t, timer_id, int, flags, + struct old_itimerspec32 __user *, new, + struct old_itimerspec32 __user *, old) { struct itimerspec64 new_spec, old_spec; struct itimerspec64 *rtn = old ? &old_spec : NULL; @@ -1096,8 +1096,8 @@ SYSCALL_DEFINE2(clock_getres, const clockid_t, which_clock, #ifdef CONFIG_COMPAT_32BIT_TIME -COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock, - struct old_timespec32 __user *, tp) +SYSCALL_DEFINE2(clock_settime32, clockid_t, which_clock, + struct old_timespec32 __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 ts; @@ -1111,8 +1111,8 @@ COMPAT_SYSCALL_DEFINE2(clock_settime, clockid_t, which_clock, return kc->clock_set(which_clock, &ts); } -COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock, - struct old_timespec32 __user *, tp) +SYSCALL_DEFINE2(clock_gettime32, clockid_t, which_clock, + struct old_timespec32 __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 ts; @@ -1129,8 +1129,8 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock, return err; } -COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, - struct old_timex32 __user *, utp) +SYSCALL_DEFINE2(clock_adjtime32, clockid_t, which_clock, + struct old_timex32 __user *, utp) { struct __kernel_timex ktx; int err; @@ -1147,8 +1147,8 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, return err; } -COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock, - struct old_timespec32 __user *, tp) +SYSCALL_DEFINE2(clock_getres_time32, clockid_t, which_clock, + struct old_timespec32 __user *, tp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 ts; @@ -1204,9 +1204,9 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags, #ifdef CONFIG_COMPAT_32BIT_TIME -COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags, - struct old_timespec32 __user *, rqtp, - struct old_timespec32 __user *, rmtp) +SYSCALL_DEFINE4(clock_nanosleep_time32, clockid_t, which_clock, int, flags, + struct old_timespec32 __user *, rqtp, + struct old_timespec32 __user *, rmtp) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct timespec64 t; diff --git a/kernel/time/time.c b/kernel/time/time.c index 78b5c8f1495a..6261f969dcb7 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -98,11 +98,11 @@ SYSCALL_DEFINE1(stime, time_t __user *, tptr) #endif /* __ARCH_WANT_SYS_TIME */ -#ifdef CONFIG_COMPAT +#ifdef CONFIG_COMPAT_32BIT_TIME #ifdef __ARCH_WANT_COMPAT_SYS_TIME /* old_time32_t is a 32 bit "long" and needs to get converted. */ -COMPAT_SYSCALL_DEFINE1(time, old_time32_t __user *, tloc) +SYSCALL_DEFINE1(time32, old_time32_t __user *, tloc) { old_time32_t i; @@ -116,7 +116,7 @@ COMPAT_SYSCALL_DEFINE1(time, old_time32_t __user *, tloc) return i; } -COMPAT_SYSCALL_DEFINE1(stime, old_time32_t __user *, tptr) +SYSCALL_DEFINE1(stime32, old_time32_t __user *, tptr) { struct timespec64 tv; int err; @@ -344,7 +344,7 @@ int put_old_timex32(struct old_timex32 __user *utp, const struct __kernel_timex return 0; } -COMPAT_SYSCALL_DEFINE1(adjtimex, struct old_timex32 __user *, utp) +SYSCALL_DEFINE1(adjtimex_time32, struct old_timex32 __user *, utp) { struct __kernel_timex txc; int err, ret; -- cgit v1.2.3