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Sat, 19 Sep 2026 09:49:10 -0700 (PDT) Received: from rebo.bsdimp.com ([50.253.99.174]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-6cd35712c0csm3281927eaf.11.2026.09.19.09.49.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 19 Sep 2026 09:49:09 -0700 (PDT) From: Warner Losh To: qemu-devel@nongnu.org Cc: Warner Losh , Kyle Evans , Stacey Son , =?UTF-8?q?Mika=C3=ABl=20Urankar?= , Sean Bruno , Kyle Evans , Pierrick Bouvier , Richard Henderson Subject: [PULL 22/41] bsd-user: Add os-time.h with clock and time-of-day functions Date: Sat, 19 Sep 2026 10:47:50 -0600 Message-ID: <20260919164810.70151-23-imp@bsdimp.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260919164810.70151-1-imp@bsdimp.com> References: <20260919164810.70151-1-imp@bsdimp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: none client-ip=2607:f8b0:4864:32::18; envelope-from=imp@bsdimp.com; helo=mail-oi2-x18.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Add the first part of FreeBSD time support: nanosleep, clock_nanosleep, clock_gettime, clock_settime, clock_getres, gettimeofday, settimeofday, adjtime, ntp_adjtime, and ntp_gettime. Also add safe_syscall wrappers for nanosleep, clock_nanosleep, and kevent. Signed-off-by: Stacey Son Signed-off-by: Mikaël Urankar Signed-off-by: Sean Bruno Signed-off-by: Kyle Evans Assisted-by: Claude Opus 4.6 (1M context) Reviewed-by: Pierrick Bouvier Acked-by: Richard Henderson Signed-off-by: Warner Losh --- bsd-user/freebsd/os-time.h | 225 +++++++++++++++++++++++++++++++++++++ 1 file changed, 225 insertions(+) create mode 100644 bsd-user/freebsd/os-time.h diff --git a/bsd-user/freebsd/os-time.h b/bsd-user/freebsd/os-time.h new file mode 100644 index 0000000000..e387441d86 --- /dev/null +++ b/bsd-user/freebsd/os-time.h @@ -0,0 +1,225 @@ +/* + * FreeBSD time related system call shims + * + * Copyright (c) 2013-2015 Stacey Son + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#ifndef FREEBSD_OS_TIME_H +#define FREEBSD_OS_TIME_H + +#include +#include +#include +#include +#include +#include +#include + +#include "qemu.h" +#include "qemu-os.h" + +#include "bsd-socket.h" + +int safe_clock_nanosleep(clockid_t clock_id, int flags, + const struct timespec *rqtp, struct timespec *rmtp); +int safe_nanosleep(const struct timespec *rqtp, struct timespec *rmtp); +int safe_kevent(int, const struct kevent *, int, struct kevent *, int, + const struct timespec *); + +int __sys_ktimer_create(clockid_t, struct sigevent *restrict, + int *restrict); +int __sys_ktimer_gettime(int, struct itimerspec *); +int __sys_ktimer_settime(int, int, const struct itimerspec *restrict, + struct itimerspec *restrict); +int __sys_ktimer_delete(int); + +/* nanosleep(2) */ +static inline abi_long do_freebsd_nanosleep(abi_long arg1, abi_long arg2) +{ + abi_long ret; + struct timespec req, rem; + + ret = t2h_freebsd_timespec(&req, arg1); + if (!is_error(ret)) { + ret = get_errno(safe_nanosleep(&req, &rem)); + if (ret == -TARGET_EINTR && arg2) { + if (h2t_freebsd_timespec(arg2, &rem) != 0) { + ret = -TARGET_EFAULT; + } + } + } + + return ret; +} + +/* clock_nanosleep(2) */ +static inline abi_long do_freebsd_clock_nanosleep(abi_long arg1, abi_long arg2, + abi_long arg3, abi_long arg4) +{ + struct timespec req, rem; + abi_long ret; + int clkid, flags; + + clkid = arg1; + /* XXX Translate? */ + flags = arg2; + ret = t2h_freebsd_timespec(&req, arg3); + if (!is_error(ret)) { + ret = get_errno(safe_clock_nanosleep(clkid, flags, &req, &rem)); + if (ret == -TARGET_EINTR && arg4) { + if (h2t_freebsd_timespec(arg4, &rem) != 0) { + ret = -TARGET_EFAULT; + } + } + } + + return ret; +} + +/* clock_gettime(2) */ +static inline abi_long do_freebsd_clock_gettime(abi_long arg1, abi_long arg2) +{ + abi_long ret; + struct timespec ts; + + ret = get_errno(clock_gettime(arg1, &ts)); + if (!is_error(ret)) { + if (h2t_freebsd_timespec(arg2, &ts) != 0) { + return -TARGET_EFAULT; + } + } + + return ret; +} + +/* clock_settime(2) */ +static inline abi_long do_freebsd_clock_settime(abi_long arg1, abi_long arg2) +{ + struct timespec ts; + + if (t2h_freebsd_timespec(&ts, arg2) != 0) { + return -TARGET_EFAULT; + } + + return get_errno(clock_settime(arg1, &ts)); +} + +/* clock_getres(2) */ +static inline abi_long do_freebsd_clock_getres(abi_long arg1, abi_long arg2) +{ + abi_long ret; + struct timespec ts; + + ret = get_errno(clock_getres(arg1, &ts)); + if (!is_error(ret)) { + if (h2t_freebsd_timespec(arg2, &ts) != 0) { + return -TARGET_EFAULT; + } + } + + return ret; +} + +/* gettimeofday(2) */ +static inline abi_long do_freebsd_gettimeofday(abi_ulong arg1, abi_ulong arg2) +{ + abi_long ret; + struct timeval tv; + struct timezone tz, *target_tz; /* XXX */ + + if (arg2 != 0) { + if (!lock_user_struct(VERIFY_READ, target_tz, arg2, 0)) { + return -TARGET_EFAULT; + } + __get_user(tz.tz_minuteswest, &target_tz->tz_minuteswest); + __get_user(tz.tz_dsttime, &target_tz->tz_dsttime); + unlock_user_struct(target_tz, arg2, 1); + } + ret = get_errno(gettimeofday(&tv, arg2 != 0 ? &tz : NULL)); + if (!is_error(ret)) { + if (h2t_freebsd_timeval(&tv, arg1)) { + return -TARGET_EFAULT; + } + } + + return ret; +} + +/* settimeofday(2) */ +static inline abi_long do_freebsd_settimeofday(abi_long arg1, abi_long arg2) +{ + struct timeval tv; + struct timezone tz, *target_tz; /* XXX */ + + if (arg2 != 0) { + if (!lock_user_struct(VERIFY_READ, target_tz, arg2, 0)) { + return -TARGET_EFAULT; + } + __get_user(tz.tz_minuteswest, &target_tz->tz_minuteswest); + __get_user(tz.tz_dsttime, &target_tz->tz_dsttime); + unlock_user_struct(target_tz, arg2, 1); + } + if (t2h_freebsd_timeval(&tv, arg1)) { + return -TARGET_EFAULT; + } + + return get_errno(settimeofday(&tv, arg2 != 0 ? &tz : NULL)); +} + +/* adjtime(2) */ +static inline abi_long do_freebsd_adjtime(abi_ulong target_delta_addr, + abi_ulong target_old_addr) +{ + abi_long ret; + struct timeval host_delta, host_old; + + ret = t2h_freebsd_timeval(&host_delta, target_delta_addr); + if (is_error(ret)) { + return ret; + } + + if (target_old_addr) { + ret = get_errno(adjtime(&host_delta, &host_old)); + if (is_error(ret)) { + return ret; + } + ret = h2t_freebsd_timeval(&host_old, target_old_addr); + } else { + ret = get_errno(adjtime(&host_delta, NULL)); + } + + return ret; +} + +/* ntp_adjtime(2) */ +static inline abi_long do_freebsd_ntp_adjtime(abi_ulong target_tx_addr) +{ + abi_long ret; + struct timex host_tx; + + ret = t2h_freebsd_timex(&host_tx, target_tx_addr); + if (ret == 0) { + ret = get_errno(ntp_adjtime(&host_tx)); + } + + return ret; +} + +/* ntp_gettime(2) */ +static inline abi_long do_freebsd_ntp_gettime(abi_ulong target_ntv_addr) +{ + abi_long ret; + struct ntptimeval host_ntv; + + ret = get_errno(ntp_gettime(&host_ntv)); + if (!is_error(ret)) { + ret = h2t_freebsd_ntptimeval(target_ntv_addr, &host_ntv); + } + + return ret; +} + + + +#endif /* FREEBSD_OS_TIME_H */ -- 2.55.0