We don't want new architectures to even provide the old 32-bit time_t based system calls any more, or define the syscall number macros. Add a new __ARCH_WANT_TIME32_SYSCALLS macro that gets enabled for all existing 32-bit architectures so we don't change any current behavior. Since this symbol is evaluated in user space as well, we cannot use a Kconfig CONFIG_* macro but have to define it in uapi/asm/unistd.h. On 64-bit architectures, the same system call numbers mostly refer to the system calls we want to keep, as they already pass 64-bit time_t. As new architectures no longer provide these, we need new exceptions in checksyscalls.sh. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- arch/arc/include/uapi/asm/unistd.h | 1 + arch/arm64/include/uapi/asm/unistd.h | 1 + arch/c6x/include/uapi/asm/unistd.h | 1 + arch/csky/include/uapi/asm/unistd.h | 1 + arch/h8300/include/uapi/asm/unistd.h | 1 + arch/hexagon/include/uapi/asm/unistd.h | 1 + arch/nds32/include/uapi/asm/unistd.h | 1 + arch/nios2/include/uapi/asm/unistd.h | 1 + arch/openrisc/include/uapi/asm/unistd.h | 1 + arch/riscv/include/uapi/asm/unistd.h | 3 ++ arch/unicore32/include/uapi/asm/unistd.h | 1 + include/uapi/asm-generic/unistd.h | 36 ++++++++++++++++++++++++ scripts/checksyscalls.sh | 7 +++++ 13 files changed, 56 insertions(+) diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h index 6a1a62a979dd..5eafa1115162 100644 --- a/arch/arc/include/uapi/asm/unistd.h +++ b/arch/arc/include/uapi/asm/unistd.h @@ -23,6 +23,7 @@ #define __ARCH_WANT_SYS_CLONE #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_FORK +#define __ARCH_WANT_TIME32_SYSCALLS #define sys_mmap2 sys_mmap_pgoff diff --git a/arch/arm64/include/uapi/asm/unistd.h b/arch/arm64/include/uapi/asm/unistd.h index 79937de2a0cc..4703d218663a 100644 --- a/arch/arm64/include/uapi/asm/unistd.h +++ b/arch/arm64/include/uapi/asm/unistd.h @@ -18,5 +18,6 @@ #define __ARCH_WANT_RENAMEAT #define __ARCH_WANT_NEW_STAT #define __ARCH_WANT_SET_GET_RLIMIT +#define __ARCH_WANT_TIME32_SYSCALLS #include <asm-generic/unistd.h> diff --git a/arch/c6x/include/uapi/asm/unistd.h b/arch/c6x/include/uapi/asm/unistd.h index e3721b2cfd6a..79b724c39d9b 100644 --- a/arch/c6x/include/uapi/asm/unistd.h +++ b/arch/c6x/include/uapi/asm/unistd.h @@ -19,6 +19,7 @@ #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SET_GET_RLIMIT #define __ARCH_WANT_SYS_CLONE +#define __ARCH_WANT_TIME32_SYSCALLS /* Use the standard ABI for syscalls. */ #include <asm-generic/unistd.h> diff --git a/arch/csky/include/uapi/asm/unistd.h b/arch/csky/include/uapi/asm/unistd.h index f5c83492136f..ec60e49cea66 100644 --- a/arch/csky/include/uapi/asm/unistd.h +++ b/arch/csky/include/uapi/asm/unistd.h @@ -3,6 +3,7 @@ #define __ARCH_WANT_SYS_CLONE #define __ARCH_WANT_SET_GET_RLIMIT +#define __ARCH_WANT_TIME32_SYSCALLS #include <asm-generic/unistd.h> #define __NR_set_thread_area (__NR_arch_specific_syscall + 0) diff --git a/arch/h8300/include/uapi/asm/unistd.h b/arch/h8300/include/uapi/asm/unistd.h index b9e9352f2328..eb7bc0012af5 100644 --- a/arch/h8300/include/uapi/asm/unistd.h +++ b/arch/h8300/include/uapi/asm/unistd.h @@ -3,5 +3,6 @@ #define __ARCH_WANT_RENAMEAT #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SET_GET_RLIMIT +#define __ARCH_WANT_TIME32_SYSCALLS #include <asm-generic/unistd.h> diff --git a/arch/hexagon/include/uapi/asm/unistd.h b/arch/hexagon/include/uapi/asm/unistd.h index 6bb392a33c35..432c4db1b623 100644 --- a/arch/hexagon/include/uapi/asm/unistd.h +++ b/arch/hexagon/include/uapi/asm/unistd.h @@ -35,5 +35,6 @@ #define __ARCH_WANT_SYS_CLONE #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_FORK +#define __ARCH_WANT_TIME32_SYSCALLS #include <asm-generic/unistd.h> diff --git a/arch/nds32/include/uapi/asm/unistd.h b/arch/nds32/include/uapi/asm/unistd.h index eb98d24d3190..4ec8f543103f 100644 --- a/arch/nds32/include/uapi/asm/unistd.h +++ b/arch/nds32/include/uapi/asm/unistd.h @@ -4,6 +4,7 @@ #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SYNC_FILE_RANGE2 #define __ARCH_WANT_SET_GET_RLIMIT +#define __ARCH_WANT_TIME32_SYSCALLS /* Use the standard ABI for syscalls */ #include <asm-generic/unistd.h> diff --git a/arch/nios2/include/uapi/asm/unistd.h b/arch/nios2/include/uapi/asm/unistd.h index fa68e68bc26d..0b4bb1d41b28 100644 --- a/arch/nios2/include/uapi/asm/unistd.h +++ b/arch/nios2/include/uapi/asm/unistd.h @@ -21,6 +21,7 @@ #define __ARCH_WANT_RENAMEAT #define __ARCH_WANT_STAT64 #define __ARCH_WANT_SET_GET_RLIMIT +#define __ARCH_WANT_TIME32_SYSCALLS /* Use the standard ABI for syscalls */ #include <asm-generic/unistd.h> diff --git a/arch/openrisc/include/uapi/asm/unistd.h b/arch/openrisc/include/uapi/asm/unistd.h index 2e0bc0ff9f31..566f8c4f8047 100644 --- a/arch/openrisc/include/uapi/asm/unistd.h +++ b/arch/openrisc/include/uapi/asm/unistd.h @@ -24,6 +24,7 @@ #define __ARCH_WANT_SET_GET_RLIMIT #define __ARCH_WANT_SYS_FORK #define __ARCH_WANT_SYS_CLONE +#define __ARCH_WANT_TIME32_SYSCALLS #include <asm-generic/unistd.h> diff --git a/arch/riscv/include/uapi/asm/unistd.h b/arch/riscv/include/uapi/asm/unistd.h index d9340c52e7ad..486a288b454c 100644 --- a/arch/riscv/include/uapi/asm/unistd.h +++ b/arch/riscv/include/uapi/asm/unistd.h @@ -19,6 +19,9 @@ #define __ARCH_WANT_NEW_STAT #endif /* __LP64__ */ #define __ARCH_WANT_SET_GET_RLIMIT +#ifndef __LP64__ +#define __ARCH_WANT_TIME32_SYSCALLS +#endif #include <asm-generic/unistd.h> diff --git a/arch/unicore32/include/uapi/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h index 2b575c0cf177..4e5e624f5d7e 100644 --- a/arch/unicore32/include/uapi/asm/unistd.h +++ b/arch/unicore32/include/uapi/asm/unistd.h @@ -13,6 +13,7 @@ #define __ARCH_WANT_RENAMEAT #define __ARCH_WANT_SET_GET_RLIMIT +#define __ARCH_WANT_TIME32_SYSCALLS /* Use the standard ABI for syscalls. */ #include <asm-generic/unistd.h> diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 2cdf600b05fa..12cdf611d217 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -38,8 +38,10 @@ __SYSCALL(__NR_io_destroy, sys_io_destroy) __SC_COMP(__NR_io_submit, sys_io_submit, compat_sys_io_submit) #define __NR_io_cancel 3 __SYSCALL(__NR_io_cancel, sys_io_cancel) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_io_getevents 4 __SC_3264(__NR_io_getevents, sys_io_getevents_time32, sys_io_getevents) +#endif /* fs/xattr.c */ #define __NR_setxattr 5 @@ -222,10 +224,12 @@ __SC_COMP(__NR_pwritev, sys_pwritev, compat_sys_pwritev) __SYSCALL(__NR3264_sendfile, sys_sendfile64) /* fs/select.c */ +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_pselect6 72 __SC_COMP_3264(__NR_pselect6, sys_pselect6_time32, sys_pselect6, compat_sys_pselect6_time32) #define __NR_ppoll 73 __SC_COMP_3264(__NR_ppoll, sys_ppoll_time32, sys_ppoll, compat_sys_ppoll_time32) +#endif /* fs/signalfd.c */ #define __NR_signalfd4 74 @@ -269,16 +273,20 @@ __SC_COMP(__NR_sync_file_range, sys_sync_file_range, \ /* fs/timerfd.c */ #define __NR_timerfd_create 85 __SYSCALL(__NR_timerfd_create, sys_timerfd_create) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_timerfd_settime 86 __SC_3264(__NR_timerfd_settime, sys_timerfd_settime32, \ sys_timerfd_settime) #define __NR_timerfd_gettime 87 __SC_3264(__NR_timerfd_gettime, sys_timerfd_gettime32, \ sys_timerfd_gettime) +#endif /* fs/utimes.c */ +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_utimensat 88 __SC_3264(__NR_utimensat, sys_utimensat_time32, sys_utimensat) +#endif /* kernel/acct.c */ #define __NR_acct 89 @@ -309,8 +317,10 @@ __SYSCALL(__NR_set_tid_address, sys_set_tid_address) __SYSCALL(__NR_unshare, sys_unshare) /* kernel/futex.c */ +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_futex 98 __SC_3264(__NR_futex, sys_futex_time32, sys_futex) +#endif #define __NR_set_robust_list 99 __SC_COMP(__NR_set_robust_list, sys_set_robust_list, \ compat_sys_set_robust_list) @@ -319,8 +329,10 @@ __SC_COMP(__NR_get_robust_list, sys_get_robust_list, \ compat_sys_get_robust_list) /* kernel/hrtimer.c */ +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_nanosleep 101 __SC_3264(__NR_nanosleep, sys_nanosleep_time32, sys_nanosleep) +#endif /* kernel/itimer.c */ #define __NR_getitimer 102 @@ -341,14 +353,19 @@ __SYSCALL(__NR_delete_module, sys_delete_module) /* kernel/posix-timers.c */ #define __NR_timer_create 107 __SC_COMP(__NR_timer_create, sys_timer_create, compat_sys_timer_create) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_timer_gettime 108 __SC_3264(__NR_timer_gettime, sys_timer_gettime32, sys_timer_gettime) +#endif #define __NR_timer_getoverrun 109 __SYSCALL(__NR_timer_getoverrun, sys_timer_getoverrun) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_timer_settime 110 __SC_3264(__NR_timer_settime, sys_timer_settime32, sys_timer_settime) +#endif #define __NR_timer_delete 111 __SYSCALL(__NR_timer_delete, sys_timer_delete) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_clock_settime 112 __SC_3264(__NR_clock_settime, sys_clock_settime32, sys_clock_settime) #define __NR_clock_gettime 113 @@ -358,6 +375,7 @@ __SC_3264(__NR_clock_getres, sys_clock_getres_time32, sys_clock_getres) #define __NR_clock_nanosleep 115 __SC_3264(__NR_clock_nanosleep, sys_clock_nanosleep_time32, \ sys_clock_nanosleep) +#endif /* kernel/printk.c */ #define __NR_syslog 116 @@ -388,9 +406,11 @@ __SYSCALL(__NR_sched_yield, sys_sched_yield) __SYSCALL(__NR_sched_get_priority_max, sys_sched_get_priority_max) #define __NR_sched_get_priority_min 126 __SYSCALL(__NR_sched_get_priority_min, sys_sched_get_priority_min) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_sched_rr_get_interval 127 __SC_3264(__NR_sched_rr_get_interval, sys_sched_rr_get_interval_time32, \ sys_sched_rr_get_interval) +#endif /* kernel/signal.c */ #define __NR_restart_syscall 128 @@ -411,9 +431,11 @@ __SC_COMP(__NR_rt_sigaction, sys_rt_sigaction, compat_sys_rt_sigaction) __SC_COMP(__NR_rt_sigprocmask, sys_rt_sigprocmask, compat_sys_rt_sigprocmask) #define __NR_rt_sigpending 136 __SC_COMP(__NR_rt_sigpending, sys_rt_sigpending, compat_sys_rt_sigpending) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_rt_sigtimedwait 137 __SC_COMP_3264(__NR_rt_sigtimedwait, sys_rt_sigtimedwait_time32, \ sys_rt_sigtimedwait, compat_sys_rt_sigtimedwait_time32) +#endif #define __NR_rt_sigqueueinfo 138 __SC_COMP(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo, \ compat_sys_rt_sigqueueinfo) @@ -486,12 +508,14 @@ __SYSCALL(__NR_prctl, sys_prctl) __SYSCALL(__NR_getcpu, sys_getcpu) /* kernel/time.c */ +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_gettimeofday 169 __SC_COMP(__NR_gettimeofday, sys_gettimeofday, compat_sys_gettimeofday) #define __NR_settimeofday 170 __SC_COMP(__NR_settimeofday, sys_settimeofday, compat_sys_settimeofday) #define __NR_adjtimex 171 __SC_3264(__NR_adjtimex, sys_adjtimex_time32, sys_adjtimex) +#endif /* kernel/timer.c */ #define __NR_getpid 172 @@ -516,11 +540,13 @@ __SC_COMP(__NR_sysinfo, sys_sysinfo, compat_sys_sysinfo) __SC_COMP(__NR_mq_open, sys_mq_open, compat_sys_mq_open) #define __NR_mq_unlink 181 __SYSCALL(__NR_mq_unlink, sys_mq_unlink) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_mq_timedsend 182 __SC_3264(__NR_mq_timedsend, sys_mq_timedsend_time32, sys_mq_timedsend) #define __NR_mq_timedreceive 183 __SC_3264(__NR_mq_timedreceive, sys_mq_timedreceive_time32, \ sys_mq_timedreceive) +#endif #define __NR_mq_notify 184 __SC_COMP(__NR_mq_notify, sys_mq_notify, compat_sys_mq_notify) #define __NR_mq_getsetattr 185 @@ -541,8 +567,10 @@ __SC_COMP(__NR_msgsnd, sys_msgsnd, compat_sys_msgsnd) __SYSCALL(__NR_semget, sys_semget) #define __NR_semctl 191 __SC_COMP(__NR_semctl, sys_semctl, compat_sys_semctl) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_semtimedop 192 __SC_COMP(__NR_semtimedop, sys_semtimedop, sys_semtimedop_time32) +#endif #define __NR_semop 193 __SYSCALL(__NR_semop, sys_semop) @@ -663,8 +691,10 @@ __SC_COMP(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo, \ __SYSCALL(__NR_perf_event_open, sys_perf_event_open) #define __NR_accept4 242 __SYSCALL(__NR_accept4, sys_accept4) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_recvmmsg 243 __SC_COMP_3264(__NR_recvmmsg, sys_recvmmsg_time32, sys_recvmmsg, compat_sys_recvmmsg_time32) +#endif /* * Architectures may provide up to 16 syscalls of their own @@ -672,8 +702,10 @@ __SC_COMP_3264(__NR_recvmmsg, sys_recvmmsg_time32, sys_recvmmsg, compat_sys_recv */ #define __NR_arch_specific_syscall 244 +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_wait4 260 __SC_COMP(__NR_wait4, sys_wait4, compat_sys_wait4) +#endif #define __NR_prlimit64 261 __SYSCALL(__NR_prlimit64, sys_prlimit64) #define __NR_fanotify_init 262 @@ -684,8 +716,10 @@ __SYSCALL(__NR_fanotify_mark, sys_fanotify_mark) __SYSCALL(__NR_name_to_handle_at, sys_name_to_handle_at) #define __NR_open_by_handle_at 265 __SYSCALL(__NR_open_by_handle_at, sys_open_by_handle_at) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_clock_adjtime 266 __SC_3264(__NR_clock_adjtime, sys_clock_adjtime32, sys_clock_adjtime) +#endif #define __NR_syncfs 267 __SYSCALL(__NR_syncfs, sys_syncfs) #define __NR_setns 268 @@ -738,8 +772,10 @@ __SYSCALL(__NR_pkey_alloc, sys_pkey_alloc) __SYSCALL(__NR_pkey_free, sys_pkey_free) #define __NR_statx 291 __SYSCALL(__NR_statx, sys_statx) +#if defined(__ARCH_WANT_TIME32_SYSCALLS) || __BITS_PER_LONG != 32 #define __NR_io_pgetevents 292 __SC_COMP_3264(__NR_io_pgetevents, sys_io_pgetevents_time32, sys_io_pgetevents, compat_sys_io_pgetevents) +#endif #define __NR_rseq 293 __SYSCALL(__NR_rseq, sys_rseq) #define __NR_kexec_file_load 294 diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh index 53c5677d7e82..ffd635efbdca 100755 --- a/scripts/checksyscalls.sh +++ b/scripts/checksyscalls.sh @@ -143,6 +143,13 @@ cat << EOF #define __IGNORE_rt_sigtimedwait #define __IGNORE_futex #define __IGNORE_sched_rr_get_interval +#define __IGNORE_gettimeofday +#define __IGNORE_settimeofday +#define __IGNORE_wait4 +#define __IGNORE_adjtimex +#define __IGNORE_nanosleep +#define __IGNORE_io_getevents +#define __IGNORE_recvmmsg #endif /* i386-specific or historical system calls */ -- 2.20.0
