diff --git a/runtime/syntax/dtrace.vim b/runtime/syntax/dtrace.vim
new file mode 100644
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--- /dev/null
+++ b/runtime/syntax/dtrace.vim
@@ -0,0 +1,150 @@
+" DTrace D script syntax file. To avoid confusion with the D programming
+" language, I call this script dtrace.vim instead of d.vim.
+" Language: D script as described in "Solaris Dynamic Tracing Guide",
+"           http://docs.sun.com/app/docs/doc/817-6223
+" Version: 1.5
+" Last Change: 2008/04/05
+" Maintainer: Nicolas Weber <nicolasweber@gmx.de>
+
+" dtrace lexer and parser are at
+" http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libdtrace/common/dt_lex.l
+" http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libdtrace/common/dt_grammar.y
+
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+" Read the C syntax to start with
+if version < 600
+  so <sfile>:p:h/c.vim
+else
+  runtime! syntax/c.vim
+  unlet b:current_syntax
+endif
+
+syn clear cCommentL  " dtrace doesn't support // style comments
+
+" First line may start with #!, also make sure a '-s' flag is somewhere in
+" that line.
+syn match dtraceComment "\%^#!.*-s.*"
+
+" Probe descriptors need explicit matches, so that keywords in probe
+" descriptors don't show up as errors. Note that this regex detects probes
+" as "something with three ':' in it". This works in practice, but it's not
+" really correct. Also add special case code for BEGIN, END and ERROR, since
+" they are common.
+" Be careful not to detect '/*some:::node*/\n/**/' as probe, as it's
+" commented out.
+" XXX: This allows a probe description to end with ',', even if it's not
+" followed by another probe.
+" XXX: This doesn't work if followed by a comment.
+let s:oneProbe = '\%(BEGIN\|END\|ERROR\|\S\{-}:\S\{-}:\S\{-}:\S\{-}\)\_s*'
+exec 'syn match dtraceProbe "'.s:oneProbe.'\%(,\_s*'.s:oneProbe.'\)*\ze\_s\%({\|\/[^*]\|\%$\)"'
+
+" Note: We have to be careful to not make this match /* */ comments.
+" Also be careful not to eat `c = a / b; b = a / 2;`. We use the same
+" technique as the dtrace lexer: a predicate has to be followed by {, ;, or
+" EOF. Also note that dtrace doesn't allow an empty predicate // (we do).
+" This regex doesn't allow a divison operator in the predicate.
+" Make sure that this matches the empty predicate as well.
+" XXX: This doesn't work if followed by a comment.
+syn match dtracePredicate "/\*\@!\_[^/]*/\ze\_s*\%({\|;\|\%$\)"
+  "contains=ALLBUT,dtraceOption  " this lets the region contain too much stuff
+
+" Pragmas.
+" dtrace seems not to support whitespace before or after the '='.  dtrace
+" supports only one option per #pragma, and no continuations of #pragma over
+" several lines with '\'.
+" Note that dtrace treats units (Hz etc) as case-insenstive, we allow only
+" sane unit capitalization in this script (ie 'ns', 'us', 'ms', 's' have to be
+" small, Hertz can be 'Hz' or 'hz')
+" XXX: "cpu" is always highlighted as builtin var, not as option
+
+"   auto or manual: bufresize
+syn match dtraceOption contained "bufresize=\%(auto\|manual\)\s*$"
+
+"   scalar: cpu jstackframes jstackstrsize nspec stackframes stackindent ustackframes
+syn match dtraceOption contained "\%(cpu\|jstackframes\|jstackstrsize\|nspec\|stackframes\|stackindent\|ustackframes\)=\d\+\s*$"
+
+"   size: aggsize bufsize dynvarsize specsize strsize 
+"   size defaults to something if no unit is given (ie., having no unit is ok)
+syn match dtraceOption contained "\%(aggsize\|bufsize\|dynvarsize\|specsize\|strsize\)=\d\+\%(k\|m\|g\|t\|K\|M\|G\|T\)\=\s*$"
+
+"   time: aggrate cleanrate statusrate switchrate
+"   time defaults to hz if no unit is given
+syn match dtraceOption contained "\%(aggrate\|cleanrate\|statusrate\|switchrate\)=\d\+\%(hz\|Hz\|ns\|us\|ms\|s\)\=\s*$"
+
+"   No type: defaultargs destructive flowindent grabanon quiet rawbytes
+syn match dtraceOption contained "\%(defaultargs\|destructive\|flowindent\|grabanon\|quiet\|rawbytes\)\s*$"
+
+
+" Turn reserved but unspecified keywords into errors
+syn keyword dtraceReservedKeyword auto break case continue counter default do
+syn keyword dtraceReservedKeyword else for goto if import probe provider
+syn keyword dtraceReservedKeyword register restrict return static switch while
+
+" Add dtrace-specific stuff
+syn keyword dtraceOperator   sizeof offsetof stringof xlate
+syn keyword dtraceStatement  self inline xlate this translator
+
+" Builtin variables
+syn keyword dtraceIdentifier arg0 arg1 arg2 arg3 arg4 arg5 arg6 arg7 arg8 arg9 
+syn keyword dtraceIdentifier args caller chip cpu curcpu curlwpsinfo curpsinfo
+syn keyword dtraceIdentifier curthread cwd epid errno execname gid id ipl lgrp
+syn keyword dtraceIdentifier pid ppid probefunc probemod probename probeprov
+syn keyword dtraceIdentifier pset root stackdepth tid timestamp uid uregs
+syn keyword dtraceIdentifier vtimestamp walltimestamp
+syn keyword dtraceIdentifier ustackdepth
+
+" Macro Variables
+syn match dtraceConstant     "$[0-9]\+"
+syn match dtraceConstant     "$\(egid\|euid\|gid\|pgid\|ppid\)"
+syn match dtraceConstant     "$\(projid\|sid\|target\|taskid\|uid\)"
+
+" Data Recording Actions
+syn keyword dtraceFunction   trace tracemem printf printa stack ustack jstack
+
+" Process Destructive Actions
+syn keyword dtraceFunction   stop raise copyout copyoutstr system
+
+" Kernel Destructive Actions
+syn keyword dtraceFunction   breakpoint panic chill
+
+" Special Actions
+syn keyword dtraceFunction   speculate commit discard exit
+
+" Subroutines
+syn keyword dtraceFunction   alloca basename bcopy cleanpath copyin copyinstr
+syn keyword dtraceFunction   copyinto dirname msgdsize msgsize mutex_owned
+syn keyword dtraceFunction   mutex_owner mutex_type_adaptive progenyof
+syn keyword dtraceFunction   rand rw_iswriter rw_write_held speculation
+syn keyword dtraceFunction   strjoin strlen
+
+" Aggregating Functions
+syn keyword dtraceAggregatingFunction count sum avg min max lquantize quantize
+
+syn keyword dtraceType int8_t int16_t int32_t int64_t intptr_t
+syn keyword dtraceType uint8_t uint16_t uint32_t uint64_t uintptr_t
+syn keyword dtraceType string
+syn keyword dtraceType pid_t id_t
+
+
+" Define the default highlighting.
+" We use `hi def link` directly, this requires 5.8.
+hi def link dtraceReservedKeyword Error
+hi def link dtracePredicate String
+hi def link dtraceProbe dtraceStatement
+hi def link dtraceStatement Statement
+hi def link dtraceConstant Constant
+hi def link dtraceIdentifier Identifier
+hi def link dtraceAggregatingFunction dtraceFunction
+hi def link dtraceFunction Function
+hi def link dtraceType Type
+hi def link dtraceOperator Operator
+hi def link dtraceComment Comment
+hi def link dtraceNumber Number
+hi def link dtraceOption Identifier
+
+let b:current_syntax = "dtrace"