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charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: 0mp X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 2b9301a22bc677239d3c0dc783d970f17e7ca294 Auto-Submitted: auto-generated Date: Thu, 07 May 2026 14:23:12 +0000 Message-Id: <69fca050.223c2.1cd02282@gitrepo.freebsd.org> The branch main has been updated by 0mp: URL: https://cgit.FreeBSD.org/src/commit/?id=2b9301a22bc677239d3c0dc783d970f17e7ca294 commit 2b9301a22bc677239d3c0dc783d970f17e7ca294 Author: Mateusz Piotrowski <0mp@FreeBSD.org> AuthorDate: 2026-05-07 14:20:46 +0000 Commit: Mateusz Piotrowski <0mp@FreeBSD.org> CommitDate: 2026-05-07 14:20:46 +0000 d.7: Document macro variables MFC after: 1 week --- share/man/man7/d.7 | 46 ++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 44 insertions(+), 2 deletions(-) diff --git a/share/man/man7/d.7 b/share/man/man7/d.7 index 59b3389b121b..792f6d36ce73 100644 --- a/share/man/man7/d.7 +++ b/share/man/man7/d.7 @@ -1,9 +1,9 @@ .\" .\" SPDX-License-Identifier: BSD-2-Clause .\" -.\" Copyright (c) 2025 Mateusz Piotrowski <0mp@FreeBSD.org> +.\" Copyright (c) 2025-2026 Mateusz Piotrowski <0mp@FreeBSD.org> .\" -.Dd October 28, 2025 +.Dd May 7, 2026 .Dt D 7 .Os .Sh NAME @@ -39,6 +39,41 @@ This manual page serves as a short reference of the language. Refer to books listed in .Sx SEE ALSO for a complete reference. +.Sh MACRO VARIABLES +.Bl -column "$1, $2, $3, ..." "Syntax" +.It Sy Name Ta Sy Description +.It Va $1 , $2 , $3 , .\&.\&. Ta Macro arguments +.It Va $egid Ta Effective group ID Pq Xr getegid 2 +.It Va $euid Ta Effective user ID Pq Xr geteuid 2 +.It Va $gid Ta Real group ID Pq Xr getgid 2 +.It Va $pid Ta Process ID Pq Xr getpid 2 +.It Va $pgid Ta Process group ID Pq Xr getpgrp 2 +.It Va $ppid Ta Parent process ID Pq Xr getppid 2 +.It Va $sid Ta Session ID Pq Xr getsid 2 +.It Va $target Ta Target process ID of the process +specified via the +.Fl p +flag or created via the +.Fl c +flag. +.It Va $uid Ta Real user ID Pq Xr getuid 2 +.El +.Pp +The macro arguments correspond to the command-line operands. +They expand to an integer, identifier, or string depending on the context. +Prepending a macro argument with an extra dollar sign +.Pq Ql $ +forces string expansion. +.Pp +For example, +.Bd -literal -compact -offset indent +dtrace -n 'syscall::fstatat: /execname == $$1/ {}' -- ls +.Ed +uses +.Va $$1 +instead of +.Va $1 +to expand to a string instead rather than to a global variable identifier. .Sh PROBE'S DESCRIPTION A probe's description consists of four elements: .Sm off @@ -411,3 +446,10 @@ variable which typically provides the current working directory is not supported on .Fx at the moment. +.Pp +Macro variables +.Va $projid +and +.Va $taskid +are always 0 on +.Fx .