From e9698175b0b60407db1e89bcf29437ab224bca0b Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Mon, 16 Mar 2020 08:31:41 +0100 Subject: [PATCH] y2038: Replace __clock_gettime with __clock_gettime64 The __clock_gettime internal function is not supporting 64 bit time on architectures with __WORDSIZE == 32 and __TIMESIZE != 64 (like e.g. ARM 32 bit). The __clock_gettime64 function shall be used instead in the glibc itself as it supports 64 bit time on those systems. This patch does not bring any changes to systems with __WORDSIZE == 64 as for them the __clock_gettime64 is aliased to __clock_gettime (in ./include/time.h). --- benchtests/bench-timing.h | 2 +- include/random-bits.h | 4 ++-- login/logout.c | 4 ++-- login/logwtmp.c | 5 +++-- nis/nis_call.c | 16 +++++++--------- sysdeps/generic/hp-timing.h | 4 ++-- sysdeps/generic/memusage.h | 4 ++-- sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c | 4 ++-- sysdeps/unix/sysv/linux/clock.c | 7 ++----- 9 files changed, 23 insertions(+), 27 deletions(-) diff --git a/benchtests/bench-timing.h b/benchtests/bench-timing.h index 5b9a8384bb..a0d6f82465 100644 --- a/benchtests/bench-timing.h +++ b/benchtests/bench-timing.h @@ -18,7 +18,7 @@ #undef attribute_hidden #define attribute_hidden -#define __clock_gettime clock_gettime +#define __clock_gettime __clock_gettime64 #include #include diff --git a/include/random-bits.h b/include/random-bits.h index fd3fa01f9b..7561e55ca6 100644 --- a/include/random-bits.h +++ b/include/random-bits.h @@ -30,8 +30,8 @@ static inline uint32_t random_bits (void) { - struct timespec tv; - __clock_gettime (CLOCK_MONOTONIC, &tv); + struct __timespec64 tv; + __clock_gettime64 (CLOCK_MONOTONIC, &tv); /* Shuffle the lower bits to minimize the clock bias. */ uint32_t ret = tv.tv_nsec ^ tv.tv_sec; ret ^= (ret << 24) | (ret >> 8); diff --git a/login/logout.c b/login/logout.c index 7653fe8886..091312eb1d 100644 --- a/login/logout.c +++ b/login/logout.c @@ -47,8 +47,8 @@ logout (const char *line) memset (ut->ut_name, '\0', sizeof ut->ut_name); memset (ut->ut_host, '\0', sizeof ut->ut_host); - struct timespec ts; - __clock_gettime (CLOCK_REALTIME, &ts); + struct __timespec64 ts; + __clock_gettime64 (CLOCK_REALTIME, &ts); TIMESPEC_TO_TIMEVAL (&ut->ut_tv, &ts); ut->ut_type = DEAD_PROCESS; diff --git a/login/logwtmp.c b/login/logwtmp.c index 90406acc3d..050219c153 100644 --- a/login/logwtmp.c +++ b/login/logwtmp.c @@ -21,6 +21,7 @@ #include #include #include +#include void @@ -36,8 +37,8 @@ logwtmp (const char *line, const char *name, const char *host) strncpy (ut.ut_name, name, sizeof ut.ut_name); strncpy (ut.ut_host, host, sizeof ut.ut_host); - struct timespec ts; - __clock_gettime (CLOCK_REALTIME, &ts); + struct __timespec64 ts; + __clock_gettime64 (CLOCK_REALTIME, &ts); TIMESPEC_TO_TIMEVAL (&ut.ut_tv, &ts); updwtmp (_PATH_WTMP, &ut); diff --git a/nis/nis_call.c b/nis/nis_call.c index 92c70e97aa..da4c52bdcd 100644 --- a/nis/nis_call.c +++ b/nis/nis_call.c @@ -575,7 +575,7 @@ static struct nis_server_cache unsigned int size; unsigned int server_used; unsigned int current_ep; - time_t expires; + __time64_t expires; char name[]; } *nis_server_cache[16]; static time_t nis_cold_start_mtime; @@ -584,7 +584,7 @@ __libc_lock_define_initialized (static, nis_server_cache_lock) static directory_obj * nis_server_cache_search (const_nis_name name, int search_parent, unsigned int *server_used, unsigned int *current_ep, - struct timeval *now) + struct __timespec64 *now) { directory_obj *ret = NULL; int i; @@ -642,7 +642,7 @@ nis_server_cache_search (const_nis_name name, int search_parent, static void nis_server_cache_add (const_nis_name name, int search_parent, directory_obj *dir, unsigned int server_used, - unsigned int current_ep, struct timeval *now) + unsigned int current_ep, struct __timespec64 *now) { struct nis_server_cache **loc; struct nis_server_cache *new; @@ -708,8 +708,7 @@ __nisfind_server (const_nis_name name, int search_parent, nis_error result = NIS_SUCCESS; nis_error status; directory_obj *obj; - struct timeval now; - struct timespec ts; + struct __timespec64 ts; unsigned int server_used = ~0; unsigned int current_ep = ~0; @@ -719,12 +718,11 @@ __nisfind_server (const_nis_name name, int search_parent, if (*dir != NULL) return NIS_SUCCESS; - __clock_gettime (CLOCK_REALTIME, &ts); - TIMESPEC_TO_TIMEVAL (&now, &ts); + __clock_gettime64 (CLOCK_REALTIME, &ts); if ((flags & NO_CACHE) == 0) *dir = nis_server_cache_search (name, search_parent, &server_used, - ¤t_ep, &now); + ¤t_ep, &ts); if (*dir != NULL) { unsigned int server_len = (*dir)->do_servers.do_servers_len; @@ -783,7 +781,7 @@ __nisfind_server (const_nis_name name, int search_parent, } if ((flags & NO_CACHE) == 0) nis_server_cache_add (name, search_parent, obj, - server_used, current_ep, &now); + server_used, current_ep, &ts); } else { diff --git a/sysdeps/generic/hp-timing.h b/sysdeps/generic/hp-timing.h index e2d7447212..af9d92f7f7 100644 --- a/sysdeps/generic/hp-timing.h +++ b/sysdeps/generic/hp-timing.h @@ -34,8 +34,8 @@ typedef uint64_t hp_timing_t; vDSO symbol. */ #define HP_TIMING_NOW(var) \ ({ \ - struct timespec tv; \ - __clock_gettime (CLOCK_MONOTONIC, &tv); \ + struct __timespec64 tv; \ + __clock_gettime64 (CLOCK_MONOTONIC, &tv); \ (var) = (tv.tv_nsec + UINT64_C(1000000000) * tv.tv_sec); \ }) diff --git a/sysdeps/generic/memusage.h b/sysdeps/generic/memusage.h index a111864b0b..91e56d24de 100644 --- a/sysdeps/generic/memusage.h +++ b/sysdeps/generic/memusage.h @@ -28,9 +28,9 @@ #ifndef GETTIME # define GETTIME(low,high) \ { \ - struct timespec now; \ + struct __timespec64 now; \ uint64_t usecs; \ - clock_gettime (CLOCK_REALTIME, &now); \ + __clock_gettime64 (CLOCK_REALTIME, &now); \ usecs = (uint64_t)now.tv_nsec / 1000 + (uint64_t)now.tv_sec * 1000000; \ low = usecs & 0xffffffff; \ high = usecs >> 32; \ diff --git a/sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c b/sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c index 8cf5d303f9..5075ae0444 100644 --- a/sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c +++ b/sysdeps/unix/sysv/linux/alpha/osf_gettimeofday.c @@ -35,8 +35,8 @@ __gettimeofday_tv32 (struct __timeval32 *restrict tv32, void *restrict tz) if (__glibc_unlikely (tz != 0)) memset (tz, 0, sizeof (struct timezone)); - struct timespec ts; - __clock_gettime (CLOCK_REALTIME, &ts); + struct __timespec64 ts; + __clock_gettime64 (CLOCK_REALTIME, &ts); *tv32 = valid_timespec_to_timeval32 (ts); return 0; diff --git a/sysdeps/unix/sysv/linux/clock.c b/sysdeps/unix/sysv/linux/clock.c index 24a8df0cf5..157ae8eb3f 100644 --- a/sysdeps/unix/sysv/linux/clock.c +++ b/sysdeps/unix/sysv/linux/clock.c @@ -23,15 +23,12 @@ clock_t clock (void) { - struct timespec ts; + struct __timespec64 ts; _Static_assert (CLOCKS_PER_SEC == 1000000, "CLOCKS_PER_SEC should be 1000000"); - /* clock_gettime shouldn't fail here since CLOCK_PROCESS_CPUTIME_ID is - supported since 2.6.12. Check the return value anyway in case the kernel - barfs on us for some reason. */ - if (__glibc_unlikely (__clock_gettime (CLOCK_PROCESS_CPUTIME_ID, &ts) != 0)) + if (__glibc_unlikely (__clock_gettime64 (CLOCK_PROCESS_CPUTIME_ID, &ts) != 0)) return (clock_t) -1; return (ts.tv_sec * CLOCKS_PER_SEC -- 2.43.5