Date: Sat, 8 Dec 2018 06:30:41 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r341720 - in head/sys: kern sys Message-ID: <201812080630.wB86UfO2007755@repo.freebsd.org>
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Author: mjg Date: Sat Dec 8 06:30:41 2018 New Revision: 341720 URL: https://svnweb.freebsd.org/changeset/base/341720 Log: Provide SDT_PROBES_ENABLED macro. Sponsored by: The FreeBSD Foundation Modified: head/sys/kern/kern_synch.c head/sys/sys/sdt.h Modified: head/sys/kern/kern_synch.c ============================================================================== --- head/sys/kern/kern_synch.c Sat Dec 8 04:53:08 2018 (r341719) +++ head/sys/kern/kern_synch.c Sat Dec 8 06:30:41 2018 (r341720) @@ -431,7 +431,7 @@ mi_switch(int flags, struct thread *newtd) CTR4(KTR_PROC, "mi_switch: old thread %ld (td_sched %p, pid %ld, %s)", td->td_tid, td_get_sched(td), td->td_proc->p_pid, td->td_name); #ifdef KDTRACE_HOOKS - if (__predict_false(sdt_probes_enabled) && + if (SDT_PROBES_ENABLED() && ((flags & SW_PREEMPT) != 0 || ((flags & SW_INVOL) != 0 && (flags & SW_TYPE_MASK) == SWT_NEEDRESCHED))) SDT_PROBE0(sched, , , preempt); Modified: head/sys/sys/sdt.h ============================================================================== --- head/sys/sys/sdt.h Sat Dec 8 04:53:08 2018 (r341719) +++ head/sys/sys/sdt.h Sat Dec 8 06:30:41 2018 (r341720) @@ -164,8 +164,10 @@ SET_DECLARE(sdt_argtypes_set, struct sdt_argtype); #define SDT_PROBE_DECLARE(prov, mod, func, name) \ extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] +#define SDT_PROBES_ENABLED() __predict_false(sdt_probes_enabled) + #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ - if (__predict_false(sdt_probes_enabled)) { \ + if (SDT_PROBES_ENABLED()) { \ if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \ (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \
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