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| author | Erlang/OTP <[email protected]> | 2009-11-20 14:54:40 +0000 |
|---|---|---|
| committer | Erlang/OTP <[email protected]> | 2009-11-20 14:54:40 +0000 |
| commit | 84adefa331c4159d432d22840663c38f155cd4c1 (patch) | |
| tree | bff9a9c66adda4df2106dfd0e5c053ab182a12bd /lib/runtime_tools/doc/src | |
| download | otp-84adefa331c4159d432d22840663c38f155cd4c1.tar.gz otp-84adefa331c4159d432d22840663c38f155cd4c1.tar.bz2 otp-84adefa331c4159d432d22840663c38f155cd4c1.zip | |
The R13B03 release.OTP_R13B03
Diffstat (limited to 'lib/runtime_tools/doc/src')
| -rw-r--r-- | lib/runtime_tools/doc/src/Makefile | 123 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/book.xml | 46 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/dbg.xml | 1187 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/erts_alloc_config.xml | 211 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/fascicules.xml | 15 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/make.dep | 20 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/note.gif | bin | 0 -> 1539 bytes | |||
| -rw-r--r-- | lib/runtime_tools/doc/src/notes.xml | 503 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/notes_history.xml | 48 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/part_notes.xml | 38 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/part_notes_history.xml | 38 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/ref_man.xml | 38 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/runtime_tools_app.xml | 56 | ||||
| -rw-r--r-- | lib/runtime_tools/doc/src/warning.gif | bin | 0 -> 1498 bytes |
14 files changed, 2323 insertions, 0 deletions
diff --git a/lib/runtime_tools/doc/src/Makefile b/lib/runtime_tools/doc/src/Makefile new file mode 100644 index 0000000000..dbbae81cfe --- /dev/null +++ b/lib/runtime_tools/doc/src/Makefile @@ -0,0 +1,123 @@ +# +# %CopyrightBegin% +# +# Copyright Ericsson AB 1999-2009. All Rights Reserved. +# +# The contents of this file are subject to the Erlang Public License, +# Version 1.1, (the "License"); you may not use this file except in +# compliance with the License. You should have received a copy of the +# Erlang Public License along with this software. If not, it can be +# retrieved online at http://www.erlang.org/. +# +# Software distributed under the License is distributed on an "AS IS" +# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +# the License for the specific language governing rights and limitations +# under the License. +# +# %CopyrightEnd% +# +include $(ERL_TOP)/make/target.mk + +# Make the docs target default. + +default: docs + +include $(ERL_TOP)/make/$(TARGET)/otp.mk + +# ---------------------------------------------------- +# Application version +# ---------------------------------------------------- +include ../../vsn.mk +VSN=$(RUNTIME_TOOLS_VSN) +APPLICATION=runtime_tools + +# ---------------------------------------------------- +# Release directory specification +# ---------------------------------------------------- +RELSYSDIR = $(RELEASE_PATH)/lib/$(APPLICATION)-$(VSN) + +# ---------------------------------------------------- +# Target Specs +# ---------------------------------------------------- +XML_APPLICATION_FILES = ref_man.xml +XML_REF3_FILES = dbg.xml erts_alloc_config.xml +XML_REF6_FILES = runtime_tools_app.xml + +XML_PART_FILES = part_notes.xml part_notes_history.xml +XML_CHAPTER_FILES = notes.xml notes_history.xml + +BOOK_FILES = book.xml + +XML_FILES = \ + $(BOOK_FILES) $(XML_CHAPTER_FILES) \ + $(XML_PART_FILES) $(XML_REF3_FILES) \ + $(XML_REF6_FILES) $(XML_APPLICATION_FILES) + +GIF_FILES = + +# ---------------------------------------------------- + +HTML_FILES = $(XML_APPLICATION_FILES:%.xml=$(HTMLDIR)/%.html) \ + $(XML_PART_FILES:%.xml=$(HTMLDIR)/%.html) + +INFO_FILE = ../../info + +MAN3_FILES = $(XML_REF3_FILES:%.xml=$(MAN3DIR)/%.3) +MAN6_FILES = $(XML_REF6_FILES:%_app.xml=$(MAN6DIR)/%.6) + +HTML_REF_MAN_FILE = $(HTMLDIR)/index.html + +TOP_PDF_FILE = $(PDFDIR)/$(APPLICATION)-$(VSN).pdf + +# ---------------------------------------------------- +# FLAGS +# ---------------------------------------------------- +XML_FLAGS += +DVIPS_FLAGS += + +# ---------------------------------------------------- +# Targets +# ---------------------------------------------------- +$(HTMLDIR)/%.gif: %.gif + $(INSTALL_DATA) $< $@ + +docs: pdf html man + +$(TOP_PDF_FILE): $(XML_FILES) + +pdf: $(TOP_PDF_FILE) + +html: gifs $(HTML_REF_MAN_FILE) + +man: $(MAN3_FILES) $(MAN6_FILES) + +gifs: $(GIF_FILES:%=$(HTMLDIR)/%) + +debug opt: + +clean clean_docs: + rm -rf $(HTMLDIR)/* + rm -f $(MAN3DIR)/* + rm -f $(MAN6DIR)/* + rm -f $(TOP_PDF_FILE) $(TOP_PDF_FILE:%.pdf=%.fo) + rm -f errs core *~ + +# ---------------------------------------------------- +# Release Target +# ---------------------------------------------------- +include $(ERL_TOP)/make/otp_release_targets.mk + +release_docs_spec: docs + $(INSTALL_DIR) $(RELSYSDIR)/doc/pdf + $(INSTALL_DATA) $(TOP_PDF_FILE) $(RELSYSDIR)/doc/pdf + $(INSTALL_DIR) $(RELSYSDIR)/doc/html + $(INSTALL_DATA) $(HTMLDIR)/* \ + $(RELSYSDIR)/doc/html + $(INSTALL_DATA) $(INFO_FILE) $(RELSYSDIR) + $(INSTALL_DIR) $(RELEASE_PATH)/man/man3 + $(INSTALL_DATA) $(MAN3DIR)/* $(RELEASE_PATH)/man/man3 + $(INSTALL_DIR) $(RELEASE_PATH)/man/man6 + $(INSTALL_DATA) $(MAN6_FILES) $(RELEASE_PATH)/man/man6 + +release_spec: + diff --git a/lib/runtime_tools/doc/src/book.xml b/lib/runtime_tools/doc/src/book.xml new file mode 100644 index 0000000000..3f0dd7d55e --- /dev/null +++ b/lib/runtime_tools/doc/src/book.xml @@ -0,0 +1,46 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE book SYSTEM "book.dtd"> + +<book xmlns:xi="http://www.w3.org/2001/XInclude"> + <header titlestyle="normal"> + <copyright> + <year>1999</year><year>2009</year> + <holder>Ericsson AB. All Rights Reserved.</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + </legalnotice> + + <title>Runtime_Tools</title> + <prepared>Patrik Nyblom</prepared> + <docno></docno> + <date>1999-05-31</date> + <rev>A</rev> + <file>book.sgml</file> + </header> + <insidecover> + </insidecover> + <pagetext>Runtime_Tools</pagetext> + <preamble> + <contents level="2"></contents> + </preamble> + <applications> + <xi:include href="ref_man.xml"/> + </applications> + <releasenotes> + <xi:include href="notes.xml"/> + </releasenotes> + <listofterms></listofterms> + <index></index> +</book> + diff --git a/lib/runtime_tools/doc/src/dbg.xml b/lib/runtime_tools/doc/src/dbg.xml new file mode 100644 index 0000000000..0e63649c09 --- /dev/null +++ b/lib/runtime_tools/doc/src/dbg.xml @@ -0,0 +1,1187 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE erlref SYSTEM "erlref.dtd"> + +<erlref> + <header> + <copyright> + <year>1996</year><year>2009</year> + <holder>Ericsson AB. All Rights Reserved.</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + </legalnotice> + + <title>dbg</title> + <prepared>Patrik Nyblom (Claes Wikstrom)</prepared> + <responsible></responsible> + <docno>1</docno> + <approved>ETX/B/SFP (Kenneth Lundin)</approved> + <checked></checked> + <date>96-11-07</date> + <rev>A</rev> + <file>dbg.sgml</file> + </header> + <module>dbg</module> + <modulesummary>The Text Based Trace Facility</modulesummary> + <description> + <p>This module implements a text based interface to the + <c>trace/3</c> and the <c>trace_pattern/2</c> BIFs. It makes it + possible to trace functions, processes and messages on text based + terminals. It can be used instead of, or as complement to, the + <c>pman</c> module. + </p> + <p>For some examples of how to use <c>dbg</c> from the Erlang + shell, see the <seealso marker="#simple_example">simple example</seealso> section. + </p> + <p>The utilities are also suitable to use in system testing on + large systems, where other tools have too much impact on the + system performance. Some primitive support for sequential tracing + is also included, see the <seealso marker="#advanced">advanced topics</seealso> section. + </p> + </description> + <funcs> + <func> + <name>fun2ms(LiteralFun) -> MatchSpec</name> + <fsummary>Pseudo function that transforms fun syntax to match_spec.</fsummary> + <type> + <v>LiteralFun = fun() literal</v> + <v>MatchSpec = term()</v> + </type> + <desc> + <p>Pseudo function that by means of a <c>parse_transform</c> + translates the <em>literal</em><c>fun()</c> typed as parameter in + the function call to a match specification as described in + the <c>match_spec</c> manual of <c>ERTS</c> users guide. + (with literal I mean that the <c>fun()</c> needs to + textually be written as the parameter of the function, it + cannot be held in a variable which in turn is passed to the + function). </p> + <p>The parse transform is implemented in the module + <c>ms_transform</c> and the source <em>must</em> include the + file <c>ms_transform.hrl</c> in STDLIB for this + pseudo function to work. Failing to include the hrl file in + the source will result in a runtime error, not a compile + time ditto. The include file is easiest included by adding + the line + <c>-include_lib("stdlib/include/ms_transform.hrl").</c> to + the source file.</p> + <p>The <c>fun()</c> is very restricted, it can take only a + single parameter (the parameter list to match), a sole variable or a + list. It needs to use the <c>is_</c>XXX guard tests and one + cannot use language constructs that have no representation + in a match_spec (like <c>if</c>, <c>case</c>, + <c>receive</c> etc). The return value from the fun will be + the return value of the resulting match_spec.</p> + <p>Example:</p> + <pre> +1> <input>dbg:fun2ms(fun([M,N]) when N > 3 -> return_trace() end).</input> +[{['$1','$2'],[{'>','$2',3}],[{return_trace}]}]</pre> + <p>Variables from the environment can be imported, so that this + works:</p> + <pre> +2> <input>X=3.</input> +3 +3> <input>dbg:fun2ms(fun([M,N]) when N > X -> return_trace() end).</input> +[{['$1','$2'],[{'>','$2',{const,3}}],[{return_trace}]}]</pre> + <p>The imported variables will be replaced by match_spec + <c>const</c> expressions, which is consistent with the + static scoping for Erlang <c>fun()</c>s. Local or global + function calls can not be in the guard or body of the fun + however. Calls to builtin match_spec functions of course is + allowed:</p> + <pre> +4> <input>dbg:fun2ms(fun([M,N]) when N > X, is_atomm(M) -> return_trace() end).</input> +Error: fun containing local erlang function calls ('is_atomm' called in guard) cannot be translated into match_spec +{error,transform_error} +5> <input>dbg:fun2ms(fun([M,N]) when N > X, is_atom(M) -> return_trace() end).</input> +[{['$1','$2'],[{'>','$2',{const,3}},{is_atom,'$1'}],[{return_trace}]}]</pre> + <p>As you can see by the example, the function can be called from + the shell too. The <c>fun()</c> needs to be literally in the + call when used from the shell as well. Other means than the + parse_transform are used in the shell case, but more or less + the same restrictions apply (the exception being records, + as they are not handled by the shell).</p> + <warning> + <p>If the parse_transform is not applied to a module which calls this + pseudo function, the call will fail in runtime (with a + <c>badarg</c>). The module <c>dbg</c> actually exports a + function with this name, but it should never really be called + except for when using the function in the shell. If the + <c>parse_transform</c> is properly applied by including + the <c>ms_transform.hrl</c> header file, compiled code + will never call the function, but the function call is + replaced by a literal match_spec.</p> + </warning> + <p>More information is provided by the <c>ms_transform</c> + manual page in STDLIB.</p> + </desc> + </func> + <func> + <name>h() -> ok </name> + <fsummary>Give a list of available help items on standard output.</fsummary> + <desc> + <p>Gives a list of items for brief online help.</p> + </desc> + </func> + <func> + <name>h(Item) -> ok </name> + <fsummary>Give brief help for an item.</fsummary> + <type> + <v>Item = atom()</v> + </type> + <desc> + <p>Gives a brief help text for functions in the dbg module. The + available items can be listed with <c>dbg:h/0</c></p> + </desc> + </func> + <func> + <name>p(Item) -> {ok, MatchDesc} | {error, term()} </name> + <fsummary>Trace messages to and from Item.</fsummary> + <desc> + <p>Equivalent to <c>p(Item, [m])</c>.</p> + </desc> + </func> + <func> + <name>p(Item, Flags) -> {ok, MatchDesc} | {error, term()}</name> + <fsummary>Trace Item according to Flags.</fsummary> + <type> + <v>MatchDesc = [MatchNum]</v> + <v>MatchNum = {matched, node(), integer()} | {matched, node(), 0, RPCError}</v> + <v>RPCError = term()</v> + </type> + <desc> + <p>Traces <c>Item</c> in accordance to the value specified + by <c>Flags</c>. The variation of <c>Item</c> is listed below:</p> + <list type="bulleted"> + <item>If the <c>Item</c> is a <c>pid()</c>, the corresponding + process is traced. The process may be a remote process + (on another Erlang node). The node must be in the list of + traced nodes (<seealso marker="#n">see</seealso><c>n/1</c> and <c>tracer/0/2/3</c>).</item> + <item>If the <c>Item</c> is the atom <c>all</c>, all processes in the + system as well as all processes created hereafter are + to be traced. This also affects all nodes added with the + <c>n/1</c> or <c>tracer/0/2/3</c> function.</item> + <item>If the <c>Item</c> is the atom <c>new</c>, no currently existing + processes are affected, but every process created after the + call is.This also affects all nodes added with the + <c>n/1</c> or <c>tracer/0/2/3</c> function.</item> + <item>If the <c>Item</c> is the atom <c>existing</c>, all + existing processes are traced, but new processes will not + be affected.This also affects all nodes added with the + <c>n/1</c> or <c>tracer/0/2/3</c> function.</item> + <item>If the <c>Item</c> is an atom other than <c>all</c>, + <c>new</c> or <c>existing</c>, the process with the + corresponding registered name is traced.The process may be a + remote process (on another Erlang node). The node must be added + with the <c>n/1</c> or <c>tracer/0/2/3</c> function.</item> + <item>If the <c>Item</c> is an integer, the process <c><![CDATA[<0.Item.0>]]></c> is + traced.</item> + <item>If the <c>Item</c> is a tuple <c>{X, Y, Z}</c>, the + process <c><![CDATA[<X.Y.Z>]]></c> is + traced. </item> + <item>If the <c>Item</c> is a string <![CDATA["<X.Y.Z>"]]> + as returned from <c>pid_to_list/1</c>, the process + <c><![CDATA[<X.Y.Z>]]></c> is traced. </item> + </list> + <p><c>Flags</c> can be a single atom, + or a list of flags. The available flags are: + </p> + <taglist> + <tag><c>s (send)</c></tag> + <item> + <p>Traces the messages the process sends.</p> + </item> + <tag><c>r (receive)</c></tag> + <item> + <p>Traces the messages the process receives.</p> + </item> + <tag><c>m (messages)</c></tag> + <item> + <p>Traces the messages the process receives and sends.</p> + </item> + <tag><c>c (call)</c></tag> + <item> + <p>Traces global function calls for the process + according to the trace patterns set in the system (see tp/2).</p> + </item> + <tag><c>p (procs)</c></tag> + <item> + <p>Traces process related events to the process.</p> + </item> + <tag><c>sos (set on spawn)</c></tag> + <item> + <p>Lets all processes created by the traced + process inherit the trace flags + of the traced process.</p> + </item> + <tag><c>sol (set on link)</c></tag> + <item> + <p>Lets another process, <c>P2</c>, inherit the + trace flags of the traced + process whenever the traced process links to <c>P2</c>.</p> + </item> + <tag><c>sofs (set on first spawn)</c></tag> + <item> + <p>This is the same as <c>sos</c>, but only + for the first process spawned by the traced process.</p> + </item> + <tag><c>sofl (set on first link)</c></tag> + <item> + <p>This is the same as <c>sol</c>, but only for + the first call to + <c>link/1</c> by the traced process.</p> + </item> + <tag><c>all</c></tag> + <item> + <p>Sets all flags.</p> + </item> + <tag><c>clear</c></tag> + <item> + <p>Clears all flags. + </p> + </item> + </taglist> + <p>The list can also include any of the flags allowed in + <c>erlang:trace/3</c></p> + <p>The function returns either an error tuple or a tuple + <c>{ok, List}</c>. The <c>List</c> consists of + specifications of how many processes that matched (in the + case of a pure pid() exactly 1). The specification of + matched processes is <c>{matched, Node, N}</c>. If the + remote processor call,<c>rpc</c>, to a remote node fails, + the <c>rpc</c> error message is delivered as a fourth + argument and the number of matched processes are 0. Note + that the result {ok, List} may contain a list where + <c>rpc</c> calls to one, several or even all nodes failed.</p> + </desc> + </func> + <func> + <name>c(Mod, Fun, Args)</name> + <fsummary>Evaluate <c>apply(M,F,Args)</c>with <c>all</c>trace flags set.</fsummary> + <desc> + <p>Equivalent to <c>c(Mod, Fun, Args, all)</c>.</p> + </desc> + </func> + <func> + <name>c(Mod, Fun, Args, Flags)</name> + <fsummary>Evaluate <c>apply(M,F,Args)</c>with <c>Flags</c>trace flags set.</fsummary> + <desc> + <p>Evaluates the expression <c>apply(Mod, Fun, Args)</c> with the trace + flags in <c>Flags</c> set. This is a convenient way to trace processes + from the Erlang shell.</p> + </desc> + </func> + <func> + <name>i() -> ok</name> + <fsummary>Display information about all traced processes.</fsummary> + <desc> + <p>Displays information about all traced processes.</p> + </desc> + </func> + <func> + <name>tp(Module,MatchSpec)</name> + <fsummary>Set pattern for traced global function calls</fsummary> + <desc> + <p>Same as tp({Module, '_', '_'}, MatchSpec)</p> + </desc> + </func> + <func> + <name>tp(Module,Function,MatchSpec)</name> + <fsummary>Set pattern for traced global function calls</fsummary> + <desc> + <p>Same as tp({Module, Function, '_'}, MatchSpec)</p> + </desc> + </func> + <func> + <name>tp(Module, Function, Arity, MatchSpec)</name> + <fsummary>Set pattern for traced global function calls</fsummary> + <desc> + <p>Same as tp({Module, Function, Arity}, MatchSpec)</p> + </desc> + </func> + <func> + <name>tp({Module, Function, Arity}, MatchSpec) -> {ok, MatchDesc} | {error, term()}</name> + <fsummary>Set pattern for traced global function calls</fsummary> + <type> + <v>Module = atom() | '_'</v> + <v>Function = atom() | '_'</v> + <v>Arity = integer() |'_'</v> + <v>MatchSpec = integer() | atom() | [] | match_spec()</v> + <v>MatchDesc = [MatchInfo]</v> + <v>MatchInfo = {saved, integer()} | MatchNum</v> + <v>MatchNum = {matched, node(), integer()} | {matched, node(), 0, RPCError}</v> + </type> + <desc> + <p>This function enables call trace for one or more + functions. All exported functions matching the <c>{Module, Function, Arity}</c> argument will be concerned, but the + <c>match_spec()</c> may further narrow down the set of function + calls generating trace messages.</p> + <p>For a description of the <c>match_spec()</c> syntax, + please turn to the + <em>User's guide</em> part of the online + documentation for the runtime system (<em>erts</em>). The + chapter <em>Match Specification in Erlang</em> explains the + general match specification "language".</p> + <p>The Module, Function and/or Arity parts of the tuple may + be specified as the atom <c>'_'</c> which is a "wild-card" + matching all modules/functions/arities. Note, if the + Module is specified as <c>'_'</c>, the Function and Arity + parts have to be specified as '_' too. The same holds for the + Functions relation to the Arity.</p> + <p>All nodes added with <c>n/1</c> or <c>tracer/0/2/3</c> will + be affected by this call, and if Module is not <c>'_'</c> + the module will be loaded on all nodes.</p> + <p>The function returns either an error tuple or a tuple + <c>{ok, List}</c>. The <c>List</c> consists of specifications of how + many functions that matched, in the same way as the processes + are presented in the return value of <c>p/2</c>. </p> + <p>There may be a tuple <c>{saved, N}</c> in the return value, + if the MatchSpec is other + than []. The integer <c>N</c> may then be used in + subsequent calls to this function and will stand as an + "alias" for the given expression. There are also built-in + aliases named with atoms (see also <c>ltp/0</c> below).</p> + <p>If an error is returned, it can be due to errors in + compilation of the match specification. Such errors are + presented as a list of tuples <c>{error, string()}</c> where + the string is a textual explanation of the compilation + error. An example:</p> + <pre> +(x@y)4> <input>dbg:tp({dbg,ltp,0},[{[],[],[{message, two, arguments}, {noexist}]}]).</input> +{error, + [{error,"Special form 'message' called with wrong number of + arguments in {message,two,arguments}."}, + {error,"Function noexist/1 does_not_exist."}]}</pre> + </desc> + </func> + <func> + <name>tpl(Module,MatchSpec)</name> + <fsummary>Set pattern for traced local (as well as global) function calls</fsummary> + <desc> + <p>Same as tpl({Module, '_', '_'}, MatchSpec)</p> + </desc> + </func> + <func> + <name>tpl(Module,Function,MatchSpec)</name> + <fsummary>Set pattern for traced local (as well as global) function calls</fsummary> + <desc> + <p>Same as tpl({Module, Function, '_'}, MatchSpec)</p> + </desc> + </func> + <func> + <name>tpl(Module, Function, Arity, MatchSpec)</name> + <fsummary>Set pattern for traced local (as well as global) function calls</fsummary> + <desc> + <p>Same as tpl({Module, Function, Arity}, MatchSpec)</p> + </desc> + </func> + <func> + <name>tpl({Module, Function, Arity}, MatchSpec) -> {ok, MatchDesc} | {error, term()}</name> + <fsummary>Set pattern for traced local (as well as global) function calls</fsummary> + <desc> + <p>This function works as <c>tp/2</c>, but enables + tracing for local calls (and local functions) as well as for + global calls (and functions).</p> + </desc> + </func> + <func> + <name>ctp()</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctp({'_', '_', '_'})</p> + </desc> + </func> + <func> + <name>ctp(Module)</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctp({Module, '_', '_'})</p> + </desc> + </func> + <func> + <name>ctp(Module, Function)</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctp({Module, Function, '_'})</p> + </desc> + </func> + <func> + <name>ctp(Module, Function, Arity)</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctp({Module, Function, Arity})</p> + </desc> + </func> + <func> + <name>ctp({Module, Function, Arity}) -> {ok, MatchDesc} | {error, term()}</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <type> + <v>Module = atom() | '_'</v> + <v>Function = atom() | '_'</v> + <v>Arity = integer() | '_'</v> + <v>MatchDesc = [MatchNum]</v> + <v>MatchNum = {matched, node(), integer()} | {matched, node(), 0, RPCError}</v> + </type> + <desc> + <p>This function disables call tracing on the specified + functions. The semantics of the parameter is the same + as for the corresponding function specification in + <c>tp/2</c> or <c>tpl/2</c>. Both local and global call trace + is disabled. </p> + <p>The return value reflects how many functions that matched, + and is constructed as described in <c>tp/2</c>. No tuple + <c>{saved, N}</c> is however ever returned (for obvious reasons).</p> + </desc> + </func> + <func> + <name>ctpl()</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctpl({'_', '_', '_'})</p> + </desc> + </func> + <func> + <name>ctpl(Module)</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctpl({Module, '_', '_'})</p> + </desc> + </func> + <func> + <name>ctpl(Module, Function)</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctpl({Module, Function, '_'})</p> + </desc> + </func> + <func> + <name>ctpl(Module, Function, Arity)</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctpl({Module, Function, Arity})</p> + </desc> + </func> + <func> + <name>ctpl({Module, Function, Arity}) -> {ok, MatchDesc} | {error, term()}</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>This function works as <c>ctp/1</c>, but only disables + tracing set up with <c>tpl/2</c> (not with <c>tp/2</c>).</p> + </desc> + </func> + <func> + <name>ctpg()</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctpg({'_', '_', '_'})</p> + </desc> + </func> + <func> + <name>ctpg(Module)</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctpg({Module, '_', '_'})</p> + </desc> + </func> + <func> + <name>ctpg(Module, Function)</name> + <fsummary>>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctpg({Module, Function, '_'})</p> + </desc> + </func> + <func> + <name>ctpg(Module, Function, Arity)</name> + <fsummary>>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>Same as ctpg({Module, Function, Arity})</p> + </desc> + </func> + <func> + <name>ctpg({Module, Function, Arity}) -> {ok, MatchDesc} | {error, term()}</name> + <fsummary>Clear call trace pattern for the specified functions</fsummary> + <desc> + <p>This function works as <c>ctp/1</c>, but only disables + tracing set up with <c>tp/2</c> (not with <c>tpl/2</c>).</p> + </desc> + </func> + <func> + <name>ltp() -> ok</name> + <fsummary>List saved and built-in match specifications on the console.</fsummary> + <desc> + <p>Use this function to recall all match specifications previously + used in the session (i. e. previously saved during calls + to <c>tp/2</c>, and built-in match specifications. + This is very useful, as a complicated + match_spec can be quite awkward to write. Note that the + match specifications are lost if <c>stop/0</c> is called.</p> + <p>Match specifications used can be saved in a file (if a + read-write file system is present) for use in later + debugging sessions, see <c>wtp/1</c> and <c>rtp/1</c></p> + </desc> + </func> + <func> + <name>dtp() -> ok</name> + <fsummary>Delete all saved match specifications.</fsummary> + <desc> + <p>Use this function to "forget" all match specifications + saved during calls to <c>tp/2</c>. + This is useful when one wants to restore other match + specifications from a file with <c>rtp/1</c>. Use + <c>dtp/1</c> to delete specific saved match specifications. </p> + </desc> + </func> + <func> + <name>dtp(N) -> ok</name> + <fsummary>Delete a specific saved match_spec.</fsummary> + <type> + <v>N = integer()</v> + </type> + <desc> + <p>Use this function to "forget" a specific match specification + saved during calls to <c>tp/2</c>.</p> + </desc> + </func> + <func> + <name>wtp(Name) -> ok | {error, IOError}</name> + <fsummary>Write all saved and built-in match specifications to a file</fsummary> + <type> + <v>Name = string()</v> + <v>IOError = term()</v> + </type> + <desc> + <p>This function will save all match specifications saved + during the session (during calls to <c>tp/2</c>) + and built-in match specifications in a text + file with the name designated by <c>Name</c>. The format + of the file is textual, why it can be edited with an + ordinary text editor, and then restored with + <c>rtp/1</c>. </p> + <p>Each match spec in the file ends with a full stop + (<c>.</c>) and new (syntactically correct) match + specifications can be added to the file manually.</p> + <p>The function returns <c>ok</c> or an error tuple where the + second element contains the I/O error that made the + writing impossible.</p> + </desc> + </func> + <func> + <name>rtp(Name) -> ok | {error, Error}</name> + <fsummary>Read saved match specifications from file.</fsummary> + <type> + <v>Name = string()</v> + <v>Error = term()</v> + </type> + <desc> + <p>This function reads match specifications from a file + (possibly) generated by the <c>wtp/1</c> function. It checks + the syntax of all match specifications and verifies that + they are correct. The error handling principle is "all or + nothing", i. e. if some of the match specifications are + wrong, none of the specifications are added to the list of + saved match specifications for the running system. </p> + <p>The match specifications in the file are <em>merged</em> + with the current match specifications, so that no duplicates + are generated. Use <c>ltp/0</c> to see what numbers were + assigned to the specifications from the file.</p> + <p>The function will return an error, either due to I/O + problems (like a non existing or non readable file) or due + to file format problems. The errors from a bad format file + are in a more or less textual format, which will give a hint + to what's causing the problem. <marker id="n"></marker> +</p> + </desc> + </func> + <func> + <name>n(Nodename) -> {ok, Nodename} | {error, Reason}</name> + <fsummary>Add a remote node to the list of traced nodes</fsummary> + <type> + <v>Nodename = atom()</v> + <v>Reason = term()</v> + </type> + <desc> + <p>The <c>dbg</c> server keeps a list of nodes where tracing + should be performed. Whenever a <c>tp/2</c> call or a + <c>p/2</c> call is made, it is executed for all nodes in this + list including the local node (except for <c>p/2</c> with a + specific <c>pid()</c> as first argument, in which case the + command is executed only on the node where the designated + process resides). + </p> + <p>This function adds a remote node (<c>Nodename</c>) to the + list of nodes where tracing is performed. It starts a tracer + process on the remote node, which will send all trace messages + to the tracer process on the local node (via the Erlang + distribution). If no tracer process is running on the local + node, the error reason <c>no_local_tracer</c> is returned. The + tracer process on the local node must be started with the + <c>tracer/0/2</c> function. + </p> + <p>If <c>Nodename</c> is the local node, the error reason + <c>cant_add_local_node</c> is returned. + </p> + <p>If a trace port (<seealso marker="#trace_port">see</seealso><c>trace_port/2</c>) is + running on the local node, remote nodes can not be traced with + a tracer process. The error reason + <c>cant_trace_remote_pid_to_local_port</c> is returned. A + trace port can however be started on the remote node with the + <c>tracer/3</c> function. + </p> + <p>The function will also return an error if the node + <c>Nodename</c> is not reachable.</p> + </desc> + </func> + <func> + <name>cn(Nodename) -> ok</name> + <fsummary>Clear a node from the list of traced nodes.</fsummary> + <type> + <v>Nodename = atom()</v> + </type> + <desc> + <p>Clears a node from the list of traced nodes. Subsequent + calls to <c>tp/2</c> and <c>p/2</c> will not consider that + node, but tracing already activated on the node will continue + to be in effect.</p> + <p>Returns <c>ok</c>, cannot fail.</p> + </desc> + </func> + <func> + <name>ln() -> ok</name> + <fsummary>Show the list of traced nodes on the console.</fsummary> + <desc> + <p>Shows the list of traced nodes on the console.</p> + </desc> + </func> + <func> + <name>tracer() -> {ok, pid()} | {error, already_started}</name> + <fsummary>Start a tracer server that handles trace messages.</fsummary> + <desc> + <p>This function starts a server on the local node that will + be the recipient of all trace messages. All subsequent calls + to <c>p/2</c> will result in messages sent to the newly + started trace server.</p> + <p>A trace server started in this way will simply display the + trace messages in a formatted way in the Erlang shell + (i. e. use io:format). See <c>tracer/2</c> for a description + of how the trace message handler can be customized. <marker id="tracer2"></marker> +</p> + <p>To start a similar tracer on a remote node, use <c>n/1</c>.</p> + </desc> + </func> + <func> + <name>tracer(Type, Data) -> {ok, pid()} | {error, Error}</name> + <fsummary>Start a tracer server with additional parameters</fsummary> + <type> + <v>Type = port | process</v> + <v>Data = PortGenerator | HandlerSpec</v> + <v>HandlerSpec = {HandlerFun, InitialData}</v> + <v>HandlerFun = fun() (two arguments)</v> + <v>InitialData = term()</v> + <v>PortGenerator = fun() (no arguments)</v> + <v>Error = term()</v> + </type> + <desc> + <p>This function starts a tracer server with additional + parameters on the local node. The first parameter, the + <c>Type</c>, indicates if trace messages should be handled + by a receiving process (<c>process</c>) or by a tracer port + (<c>port</c>). For a description about tracer ports see + <c>trace_port/2</c>. + </p> + <p>If <c>Type</c> is a process, a message handler function can + be specified (<c>HandlerSpec</c>). The handler function, which + should be a <c>fun</c> taking two arguments, will be called + for each trace message, with the first argument containing the + message as it is and the second argument containing the return + value from the last invocation of the fun. The initial value + of the second parameter is specified in the <c>InitialData</c> + part of the <c>HandlerSpec</c>. The <c>HandlerFun</c> may + chose any appropriate action to take when invoked, and can + save a state for the next invocation by returning it. + </p> + <p>If <c>Type</c> is a port, then the second parameter should + be a <em>fun</em> which takes no arguments and returns a + newly opened trace port when called. Such a <em>fun</em> is + preferably generated by calling <c>trace_port/2</c>. + </p> + <p>If an error is returned, it can either be due to a tracer + server already running (<c>{error,already_started}</c>) or + due to the <c>HandlerFun</c> throwing an exception. + </p> + <p>To start a similar tracer on a remote node, use + <c>tracer/3</c>. <marker id="trace_port"></marker> +</p> + </desc> + </func> + <func> + <name>tracer(Nodename, Type, Data) -> {ok, Nodename} | {error, Reason}</name> + <fsummary>Start a tracer server on given node with additional parameters</fsummary> + <type> + <v>Nodename = atom()</v> + </type> + <desc> + <p>This function is equivalent to <c>tracer/2</c>, but acts on + the given node. A tracer is started on the node + (<c>Nodename</c>) and the node is added to the list of traced + nodes. + </p> + <note> + <p>This function is not equivalent to <c>n/1</c>. While + <c>n/1</c> starts a process tracer which redirects all trace + information to a process tracer on the local node (i.e. the + trace control node), <c>tracer/3</c> starts a tracer of any + type which is independent of the tracer on the trace control + node.</p> + </note> + <p>For details, <seealso marker="#tracer2">see</seealso><c>tracer/2</c>.</p> + </desc> + </func> + <func> + <name>trace_port(Type, Parameters) -> fun()</name> + <fsummary>Create and returns a trace port generating<em>fun</em></fsummary> + <type> + <v>Type = ip | file</v> + <v>Parameters = Filename | WrapFilesSpec | IPPortSpec</v> + <v>Filename = string() | [string()] | atom()</v> + <v>WrapFilesSpec = {Filename, wrap, Suffix} | {Filename, wrap, Suffix, WrapSize} | {Filename, wrap, Suffix, WrapSize, WrapCnt}</v> + <v>Suffix = string()</v> + <v>WrapSize = integer() >= 0 | {time, WrapTime}</v> + <v>WrapTime = integer() >= 1</v> + <v>WrapCnt = integer() >= 1</v> + <v>IpPortSpec = PortNumber | {PortNumber, QueSize}</v> + <v>PortNumber = integer()</v> + <v>QueSize = integer()</v> + </type> + <desc> + <p>This function creates a trace port generating <em>fun</em>. + The <em>fun</em> takes no arguments and returns a newly opened + trace port. The return value from this function is suitable as + a second parameter to tracer/2, i. e. <c>dbg:tracer(port, dbg:trace_port(ip, 4711))</c>. </p> + <p>A trace port is an + Erlang port to a dynamically linked in driver that handles + trace messages directly, without the overhead of sending them + as messages in the Erlang virtual machine.</p> + <p>Two trace drivers are currently implemented, the + <c>file</c> and the <c>ip</c> trace drivers. The file driver + sends all trace messages into one or several binary files, + from where they later can be fetched and processed with the + <c>trace_client/2</c> function. The ip driver opens a TCP/IP + port where it listens for connections. When a client + (preferably started by calling <c>trace_client/2</c> on + another Erlang node) connects, all trace messages are sent + over the IP network for further processing by the remote + client. </p> + <p>Using a trace port significantly lowers the overhead + imposed by using tracing.</p> + <p>The file trace driver expects a filename or a wrap files + specification as parameter. A file is written with a high + degree of buffering, why all trace messages are <em>not</em> + guaranteed to be saved in the file in case of a system + crash. That is the price to pay for low tracing overhead.</p> + <p>A wrap files specification is used to limit the disk + space consumed by the trace. The trace is written to a + limited number of files each with a limited size. + The actual filenames are <c>Filename ++ SeqCnt ++ Suffix</c>, where <c>SeqCnt</c> counts as a decimal string + from <c>0</c> to <c>WrapCnt</c> and then around again from + <c>0</c>. When a trace term written to + the current file makes it longer than <c>WrapSize</c>, + that file is closed, if the number of files in this + wrap trace is as many as <c>WrapCnt</c> the oldest file + is deleted then a new file is opened to become the current. + Thus, when a wrap trace has been stopped, there are at most + <c>WrapCnt</c> trace files saved with a size of at least + <c>WrapSize</c> (but not much bigger), except for + the last file that might even be empty. The default values + are <c>WrapSize = 128*1024</c> and <c>WrapCnt = 8</c>.</p> + <p>The <c>SeqCnt</c> values in the filenames are all in the + range <c>0</c> through <c>WrapCnt</c> with a gap in the + circular sequence. The gap is needed to find the end of the + trace.</p> + <p>If the <c>WrapSize</c> is specified as + <c>{time, WrapTime}</c>, the current file is closed when it + has been open more than <c>WrapTime</c> milliseconds, + regardless of it being empty or not.</p> + <p>The ip trace driver has a queue of <c>QueSize</c> messages + waiting to be delivered. If the driver cannot deliver messages + as fast as they are produced by the runtime system, a special + message is sent, which indicates how many messages that are + dropped. That message will arrive at the handler function + specified in <c>trace_client/3</c> as the tuple <c>{drop, N}</c> where <c>N</c> is the number of consecutive messages + dropped. In case of heavy tracing, drop's are likely to occur, + and they surely occur if no client is reading the trace + messages.</p> + </desc> + </func> + <func> + <name>flush_trace_port()</name> + <fsummary>Equivalent to flush_trace_port(node()).</fsummary> + <desc> + <p>Equivalent to <c>flush_trace_port(node())</c>.</p> + </desc> + </func> + <func> + <name>flush_trace_port(Nodename) -> ok | {error, Reason}</name> + <fsummary>Flush internal data buffers in a trace driver on the given node.</fsummary> + <desc> + <p>Equivalent to <c>trace_port_control(Nodename,flush)</c>.</p> + </desc> + </func> + <func> + <name>trace_port_control(Operation)</name> + <fsummary>Equivalent to trace_port_control(node(),Operation).</fsummary> + <desc> + <p>Equivalent to <c>trace_port_control(node(),Operation)</c>.</p> + </desc> + </func> + <func> + <name>trace_port_control(Nodename,Operation) -> ok | {ok, Result} | {error, Reason}</name> + <fsummary>Perform a control operation on the active trace port driver on the given node.</fsummary> + <type> + <v>Nodename = atom()</v> + </type> + <desc> + <p>This function is used to do a control operation on the + active trace port driver on the given node + (<c>Nodename</c>). Which operations that are allowed as well + as their return values are depending on which trace driver + that is used.</p> + <p>Returns either <c>ok</c> or <c>{ok, Result}</c> + if the operation was successful, or <c>{error, Reason}</c> + if the current tracer is a process + or if it is a port not supporting the operation.</p> + <p>The allowed values for <c>Operation</c> are:</p> + <taglist> + <tag><c>flush</c></tag> + <item> + <p>This function is used to flush the internal buffers + held by a trace port driver. Currently only the + file trace driver supports this operation. + Returns <c>ok</c>.</p> + </item> + <tag><c>get_listen_port</c></tag> + <item> + <p>Returns <c>{ok, IpPort}</c> where <c>IpPort</c>is + the IP port number used by the driver listen socket. + Only the ip trace driver supports this operation.</p> + </item> + </taglist> + </desc> + </func> + <func> + <name>trace_client(Type, Parameters) -> pid()</name> + <fsummary>Start a trace client that reads messages created by a trace port driver</fsummary> + <type> + <v>Type = ip | file | follow_file</v> + <v>Parameters = Filename | WrapFilesSpec | IPClientPortSpec</v> + <v>Filename = string() | [string()] | atom()</v> + <v>WrapFilesSpec = see trace_port/2</v> + <v>Suffix = string()</v> + <v>IpClientPortSpec = PortNumber | {Hostname, PortNumber}</v> + <v>PortNumber = integer()</v> + <v>Hostname = string()</v> + </type> + <desc> + <p>This function starts a trace client that reads the output + created by a trace port driver and handles it in mostly the + same way as a tracer process created by the <c>tracer/0</c> + function.</p> + <p>If <c>Type</c> is <c>file</c>, the client reads all trace + messages stored in the file named <c>Filename</c> or + specified by <c>WrapFilesSpec</c> (must be the same as used + when creating the trace, see trace_port/2) + and let's the default handler function format the + messages on the console. This is one way to interpret the data + stored in a file by the file trace port driver.</p> + <p>If <c>Type</c> is <c>follow_file</c>, the client behaves as + in the <c>file</c> case, but keeps trying to read (and + process) more data + from the file until stopped by <c>stop_trace_client/1</c>. + <c>WrapFilesSpec</c> is not allowed as second argument + for this <c>Type</c>.</p> + <p>If <c>Type</c> is <c>ip</c>, the client connects to the + TCP/IP port <c>PortNumber</c> on the host <c>Hostname</c>, + from where it reads trace messages until the TCP/IP connection + is closed. If no <c>Hostname</c> is specified, the local host + is assumed.</p> + <p>As an example, one can let trace messages be sent over the + network to another Erlang node (preferably <em>not</em> + distributed), where the formatting occurs:</p> + <p>On the node <c>stack</c> there's an Erlang node + <c>ant@stack</c>, in the shell, type the following:</p> + <pre> +ant@stack> <input>dbg:tracer(port, dbg:trace_port(ip,4711)).</input> +<0.17.0> +ant@stack> <input>dbg:p(self(), send).</input> +{ok,1}</pre> + <p>All trace messages are now sent to the trace port driver, + which in turn listens for connections on the TCP/IP port + 4711. If we want to see the messages on another node, + preferably on another host, we do like this:</p> + <pre> +-> <input>dbg:trace_client(ip, {"stack", 4711}).</input> +<0.42.0></pre> + <p>If we now send a message from the shell on the node + <c>ant@stack</c>, where all sends from the shell are traced:</p> + <pre> +ant@stack> <input>self() ! hello.</input> +hello</pre> + <p>The following will appear at the console on the node that + started the trace client:</p> + <pre> +(<0.23.0>) <0.23.0> ! hello +(<0.23.0>) <0.22.0> ! {shell_rep,<0.23.0>,{value,hello,[],[]}}</pre> + <p>The last line is generated due to internal message passing + in the Erlang shell. The process id's will vary.</p> + </desc> + </func> + <func> + <name>trace_client(Type, Parameters, HandlerSpec) -> pid()</name> + <fsummary>Start a trace client that reads messages created by a trace port driver, with a user defined handler</fsummary> + <type> + <v>Type = ip | file | follow_file</v> + <v>Parameters = Filename | WrapFilesSpec | IPClientPortSpec</v> + <v>Filename = string() | [string()] | atom()</v> + <v>WrapFilesSpec = see trace_port/2</v> + <v>Suffix = string()</v> + <v>IpClientPortSpec = PortNumber | {Hostname, PortNumber}</v> + <v>PortNumber = integer()</v> + <v>Hostname = string()</v> + <v>HandlerSpec = {HandlerFun, InitialData}</v> + <v>HandlerFun = fun() (two arguments)</v> + <v>InitialData = term()</v> + </type> + <desc> + <p>This function works exactly as <c>trace_client/2</c>, but + allows you to write your own handler function. The handler + function works mostly as the one described in + <c>tracer/2</c>, but will also have to be prepared to handle + trace messages of the form <c>{drop, N}</c>, where <c>N</c> is + the number of dropped messages. This pseudo trace message will + only occur if the ip trace driver is used.</p> + <p>For trace type <c>file</c>, the pseudo trace message + <c>end_of_trace</c> will appear at the end of the trace. The + return value from the handler function is in this case + ignored.</p> + </desc> + </func> + <func> + <name>stop_trace_client(Pid) -> ok</name> + <fsummary>Stop a trace client gracefully.</fsummary> + <type> + <v>Pid = pid()</v> + </type> + <desc> + <p>This function shuts down a previously started trace + client. The <c>Pid</c> argument is the process id returned + from the <c>trace_client/2</c> or <c>trace_client/3</c> call.</p> + </desc> + </func> + <func> + <name>get_tracer()</name> + <fsummary>Equivalent to get_tracer(node()).</fsummary> + <desc> + <p>Equivalent to <c>get_tracer(node())</c>.</p> + </desc> + </func> + <func> + <name>get_tracer(Nodename) -> {ok, Tracer}</name> + <fsummary>Return the process or port to which all trace messages are sent.</fsummary> + <type> + <v>Nodename = atom()</v> + <v>Tracer = port() | pid()</v> + </type> + <desc> + <p>Returns the process or port to which all trace + messages are sent. </p> + </desc> + </func> + <func> + <name>stop() -> stopped</name> + <fsummary>Stop the <c>dbg</c>server and the tracing of all processes.</fsummary> + <desc> + <p>Stops the <c>dbg</c> server and clears all trace flags for + all processes and all trace patterns for all functions. Also + shuts down all trace clients and closes all trace ports.</p> + <p>Note that no trace patterns are affected by this + function.</p> + </desc> + </func> + <func> + <name>stop_clear() -> stopped</name> + <fsummary>Stop the <c>dbg</c>server and the tracing of all processes, and clears trace patterns.</fsummary> + <desc> + <p>Same as stop/0, but also clears all trace patterns on local + and global functions calls.</p> + </desc> + </func> + </funcs> + + <section> + <marker id="simple_example"></marker> + <title>Simple examples - tracing from the shell</title> + <p>The simplest way of tracing from the Erlang shell is to use + <c>dbg:c/3</c> or <c>dbg:c/4</c>, e.g. tracing the function + <c>dbg:get_tracer/0</c>:</p> + <pre> +(tiger@durin)84> <input>dbg:c(dbg,get_tracer,[]).</input> +(<0.154.0>) <0.152.0> ! {<0.154.0>,{get_tracer,tiger@durin}} +(<0.154.0>) out {dbg,req,1} +(<0.154.0>) << {dbg,{ok,<0.153.0>}} +(<0.154.0>) in {dbg,req,1} +(<0.154.0>) << timeout +{ok,<0.153.0>} +(tiger@durin)85></pre> + <p>Another way of tracing from the shell is to explicitly start a + <em>tracer</em> and then set the <em>trace flags</em> of your + choice on the processes you want to trace, e.g. trace messages and + process events:</p> + <pre> +(tiger@durin)66> <input>Pid = spawn(fun() -> receive {From,Msg} -> From ! Msg end end).</input> +<0.126.0> +(tiger@durin)67> <input>dbg:tracer().</input> +{ok,<0.128.0>} +(tiger@durin)68> <input>dbg:p(Pid,[m,procs]).</input> +{ok,[{matched,tiger@durin,1}]} +(tiger@durin)69> <input>Pid ! {self(),hello}.</input> +(<0.126.0>) << {<0.116.0>,hello} +{<0.116.0>,hello} +(<0.126.0>) << timeout +(<0.126.0>) <0.116.0> ! hello +(<0.126.0>) exit normal +(tiger@durin)70> <input>flush().</input> +Shell got hello +ok +(tiger@durin)71></pre> + <p>If you set the <c>call</c> trace flag, you also have to set a + <em>trace pattern</em> for the functions you want to trace:</p> + <pre> +(tiger@durin)77> <input>dbg:tracer().</input> +{ok,<0.142.0>} +(tiger@durin)78> <input>dbg:p(all,call).</input> +{ok,[{matched,tiger@durin,3}]} +(tiger@durin)79> <input>dbg:tp(dbg,get_tracer,0,[]).</input> +{ok,[{matched,tiger@durin,1}]} +(tiger@durin)80> <input>dbg:get_tracer().</input> +(<0.116.0>) call dbg:get_tracer() +{ok,<0.143.0>} +(tiger@durin)81> <input>dbg:tp(dbg,get_tracer,0,[{'_',[],[{return_trace}]}]).</input> +{ok,[{matched,tiger@durin,1},{saved,1}]} +(tiger@durin)82> <input>dbg:get_tracer().</input> +(<0.116.0>) call dbg:get_tracer() +(<0.116.0>) returned from dbg:get_tracer/0 -> {ok,<0.143.0>} +{ok,<0.143.0>} +(tiger@durin)83></pre> + </section> + + <section> + <marker id="advanced"></marker> + <title>Advanced topics - combining with seq_trace</title> + <p>The <c>dbg</c> module is primarily targeted towards + tracing through the <c>erlang:trace/3</c> function. It is + sometimes desired to trace messages in a more delicate way, which + can be done with the help of the <c>seq_trace</c> module. + </p> + <p><c>seq_trace</c> implements sequential tracing (known in the + AXE10 world, and sometimes called "forlopp tracing"). <c>dbg</c> + can interpret messages generated from <c>seq_trace</c> and the + same tracer function for both types of tracing can be used. The + <c>seq_trace</c> messages can even be sent to a trace port for + further analysis. + </p> + <p>As a match specification can turn on sequential tracing, the + combination of <c>dbg</c> and <c>seq_trace</c> can be quite + powerful. This brief example shows a session where sequential + tracing is used:</p> + <pre> +1> <input>dbg:tracer().</input> +{ok,<0.30.0>} +2> <input>{ok, Tracer} = dbg:get_tracer().</input> +{ok,<0.31.0>} +3> <input>seq_trace:set_system_tracer(Tracer).</input> +false +4> <input>dbg:tp(dbg, get_tracer, 0, [{[],[],[{set_seq_token, send, true}]}]).</input> +{ok,[{matched,nonode@nohost,1},{saved,1}]} +5> <input>dbg:p(all,call).</input> +{ok,[{matched,nonode@nohost,22}]} +6> <input>dbg:get_tracer(), seq_trace:set_token([]).</input> +(<0.25.0>) call dbg:get_tracer() +SeqTrace [0]: (<0.25.0>) <0.30.0> ! {<0.25.0>,get_tracer} [Serial: {2,4}] +SeqTrace [0]: (<0.30.0>) <0.25.0> ! {dbg,{ok,<0.31.0>}} [Serial: {4,5}] +{1,0,5,<0.30.0>,4}</pre> + <p>This session sets the system_tracer to the same process as + the ordinary tracer process (i. e. <0.31.0>) and sets the + trace pattern for the function <c>dbg:get_tracer</c> to one that + has the action of setting a sequential token. When the function + is called by a traced process (all processes are traced in this + case), the process gets "contaminated" by the token and + <c>seq_trace</c> messages are sent both for the server request + and the response. The <c>seq_trace:set_token([])</c> after the + call clears the <c>seq_trace</c> token, why no messages are sent + when the answer propagates via the shell to the console port. + The output would otherwise have been more noisy.</p> + </section> + + <section> + <title>Note of caution</title> + <p>When tracing function calls on a group leader process (an IO process), there is risk + of causing a deadlock. This will happen if a group leader process generates a trace + message and the tracer process, by calling the trace handler function, sends an IO + request to the same group leader. The problem can only occur if the trace handler + prints to tty using an <c>io</c> function such as <c>format/2</c>. Note that when + <c>dbg:p(all,call)</c> is called, IO processes are also traced. + Here's an example:</p> + <pre> +%% Using a default line editing shell +1> <input>dbg:tracer(process, {fun(Msg,_) -> io:format("~p~n", [Msg]), 0 end, 0}).</input> +{ok,<0.37.0>} +2> <input>dbg:p(all, [call]).</input> +{ok,[{matched,nonode@nohost,25}]} +3> <input>dbg:tp(mymod,[{'_',[],[]}]).</input> +{ok,[{matched,nonode@nohost,0},{saved,1}]} +4> <input>mymod:</input> % TAB pressed here +%% -- Deadlock --</pre> + <p>Here's another example:</p> + <pre> +%% Using a shell without line editing (oldshell) +1> <input>dbg:tracer(process).</input> +{ok,<0.31.0>} +2> <input>dbg:p(all, [call]).</input> +{ok,[{matched,nonode@nohost,25}]} +3> <input>dbg:tp(lists,[{'_',[],[]}]).</input> +{ok,[{matched,nonode@nohost,0},{saved,1}]} +% -- Deadlock --</pre> + <p>The reason we get a deadlock in the first example is because when TAB is pressed + to expand the function name, the group leader (which handles character input) calls + <c>mymod:module_info()</c>. This generates a trace message which, in turn, causes the + tracer process to send an IO request to the group leader (by calling <c>io:format/2</c>). + We end up in a deadlock.</p> + <p>In the second example we use the default trace handler function. This handler + prints to tty by sending IO requests to the <c>user</c> process. When Erlang is + started in oldshell mode, the shell process will have <c>user</c> as its + group leader and so will the tracer process in this example. Since <c>user</c> calls + functions in <c>lists</c> we end up in a deadlock as soon as the first IO request is sent.</p> + <p>Here are a few suggestions for how to avoid deadlock:</p> + <list type="bulleted"> + <item>Don't trace the group leader of the tracer process. If tracing has been switched on + for all processes, call <c>dbg:p(TracerGLPid,clear)</c> to stop tracing the group leader + (<c>TracerGLPid</c>). <c>process_info(TracerPid,group_leader)</c> tells you + which process this is (<c>TracerPid</c> is returned from <c>dbg:get_tracer/0</c>).</item> + <item>Don't trace the <c>user</c> process if using the default trace handler function.</item> + <item>In your own trace handler function, call <c>erlang:display/1</c> instead of an + <c>io</c> function or, if <c>user</c> is not used as group leader, print to + <c>user</c> instead of the default group leader. Example: + <c>io:format(user,Str,Args)</c>.</item> + </list> + </section> +</erlref> + diff --git a/lib/runtime_tools/doc/src/erts_alloc_config.xml b/lib/runtime_tools/doc/src/erts_alloc_config.xml new file mode 100644 index 0000000000..5e7cbe4172 --- /dev/null +++ b/lib/runtime_tools/doc/src/erts_alloc_config.xml @@ -0,0 +1,211 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE erlref SYSTEM "erlref.dtd"> + +<erlref> + <header> + <copyright> + <year>2007</year><year>2009</year> + <holder>Ericsson AB. All Rights Reserved.</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + </legalnotice> + + <title>erts_alloc_config</title> + <prepared>Rickard Green</prepared> + <docno>1</docno> + <date>07-05-30</date> + <rev>1</rev> + <file>erts_alloc_config.sgml</file> + </header> + <module>erts_alloc_config</module> + <modulesummary>Configuration tool for erts_alloc</modulesummary> + <description> + <note> + <p><c>erts_alloc_config</c> is currently an experimental + tool and might be subject to backward incompatible + changes.</p> + </note> + <p><seealso marker="erts:erts_alloc">erts_alloc(3)</seealso> is an + Erlang Run-Time System internal memory allocator library. + <c>erts_alloc_config</c> is intended to be used to aid creation + of an <seealso marker="erts:erts_alloc">erts_alloc(3)</seealso> + configuration that is suitable for a limited number of runtime + scenarios. The configuration that <c>erts_alloc_config</c> + produce is intended as a suggestion, and may need to be + adjusted manually.</p> + <p>The configuration is created based on information about a number + of runtime scenarios. It is obviously impossible to foresee every + runtime scenario that can occur. The important scenarios are + those that cause maximum or minimum load on specific memory + allocators. Load in this context is total size of memory blocks + allocated.</p> + <p>The current implementation of <c>erts_alloc_config</c> concentrate + on configuration of multi-block carriers. Information gathered + when a runtime scenario is saved is mainly current and maximum use + of multi-block carriers. If a parameter that change the use of + multi-block carriers is changed, a previously generated + configuration is invalid and <c>erts_alloc_config</c> needs + to be run again. It is mainly the single block carrier threshold + that effects the use of multi-block carriers, but other + single-block carrier parameters might as well. If another value of + a single block carrier parameter than the default is desired, use + the desired value when running <c>erts_alloc_config</c>.</p> + <p>A configuration is created in the following way:</p> + <list type="bulleted"> + <item> + <p>Pass the <seealso marker="erts:erts_alloc#Mea">+Mea config</seealso> + command-line flag to the Erlang runtime system you are going + to use for creation of the allocator configuration. It will + disable features that prevent <c>erts_alloc_config</c> from + doing it's job. Note, you should <em>not</em> use this flag + when using the created configuration. Also note that it is + important that you use the same + <seealso marker="erts:erl#+S">amount of schedulers</seealso> + when creating the configuration as you are going the use on + the system using the configuration.</p> + </item> + <item> + <p>Run your applications with different scenarios (the more + the better) and save information about each scenario by calling + <seealso marker="#save_scenario/0">save_scenario/0</seealso>. + It may be hard to know when the applications are at an (for + <c>erts_alloc_config</c>) important runtime scenario. A good + approach may therefore be to call + <seealso marker="#save_scenario/0">save_scenario/0</seealso> + repeatedly, e.g. once every tenth second. Note that it is + important that your applications reach the runtime scenarios + that are important for <c>erts_alloc_config</c> when you are + saving scenarios; otherwise, the configuration may perform + bad.</p> + </item> + <item> + <p>When you have covered all scenarios, call + <seealso marker="#make_config/1">make_config/1</seealso> + in order to create a configuration. The configuration is + written to a file that you have chosen. This configuration + file can later be read by an Erlang runtime-system at + startup. Pass the command line argument + <seealso marker="erts:erl#args_file">-args_file FileName</seealso> + to the <seealso marker="erts:erl">erl(1)</seealso> command.</p> + </item> + <item> + <p>The configuration produced by <c>erts_alloc_config</c> may + need to be manually adjusted as already stated. Do not modify the + file produced by <c>erts_alloc_config</c>; instead, put your + modifications in another file and load this file after the + file produced by <c>erts_alloc_config</c>. That is, put the + <seealso marker="erts:erl#args_file">-args_file FileName</seealso> + argument that reads your modification file later on the + command-line than the + <seealso marker="erts:erl#args_file">-args_file FileName</seealso> + argument that reads the configuration file produced by + <c>erts_alloc_config</c>. If a memory allocation parameter + appear multiple times, the last version of will be used, i.e., + you can override parameters in the configuration file produced + by <c>erts_alloc_config</c>. Doing it this way simplifies + things when you want to rerun <c>erts_alloc_config</c>.</p> + </item> + </list> + <note> + <p>The configuration created by <c>erts_alloc_config</c> may + perform bad, ever horrible, for runtime scenarios that are very + different from the ones saved when creating the + configuration. You are, therefore, advised to rerun + <c>erts_alloc_config</c> if the applications run when the + configuration was made are changed, or if the load on the + applications have changed since the configuration was made. You + are also advised to rerun <c>erts_alloc_config</c> if the Erlang + runtime system used is changed.</p> + </note> + <p><c>erts_alloc_config</c> saves information about runtime scenarios + and performs computations in a server that is automatically + started. The server register itself under the name + <c>'__erts_alloc_config__'</c>.</p> + </description> + <funcs> + <func> + <name>save_scenario() -> ok | {error, Error}</name> + <fsummary>Saves information about current runtime scenario</fsummary> + <type> + <v>Error = term()</v> + </type> + <desc> + <p><c>save_scenario/0</c> saves information about the current + runtime scenario. This information will later be used when + <seealso marker="#make_config/0">make_config/0</seealso>, + or <seealso marker="#make_config/1">make_config/1</seealso> + is called.</p> + <p>The first time <c>save_scenario/0</c> is called a server + will be started. This server will save runtime scenarios. All + saved scenarios can be removed by calling + <seealso marker="#make_config/0">stop/0</seealso>.</p> + </desc> + </func> + <func> + <name>make_config() -> ok | {error, Error}</name> + <fsummary>Creates an erts_alloc configuration</fsummary> + <type> + <v>Error = term()</v> + </type> + <desc> + <p>This is the same as calling + <seealso marker="#make_config/1">make_config(group_leader())</seealso>.</p> + </desc> + </func> + <func> + <name>make_config(FileNameOrIODev) -> ok | {error, Error}</name> + <fsummary>Creates an erts_alloc configuration</fsummary> + <type> + <v>FileNameOrIODev = string() | io_device()</v> + <v>Error = term()</v> + </type> + <desc> + <p><c>make_config/1</c> uses the information previously saved by + <seealso marker="#save_scenario/0">save_scenario/0</seealso> + in order to produce an <c>erts_alloc</c> configuration. At + least one scenario have had to be saved. All scenarios + previously saved will be used when creating the + configuration. </p> + <p>If <c>FileNameOrIODev</c> is a <c>string()</c>, + <c>make_config/1</c> will use <c>FileNameOrIODev</c> as a + filename. A file named <c>FileNameOrIODev</c> is created and + the configuration will be written to that file. If + <c>FileNameOrIODev</c> is an + <seealso marker="stdlib:io">io_device()</seealso> (see the + documentation of the module + <seealso marker="stdlib:io">io</seealso>), the configuration + will be written to the io device.</p> + </desc> + </func> + <func> + <name>stop() -> ok | {error, Error}</name> + <fsummary></fsummary> + <type> + <v>Error = term()</v> + </type> + <desc> + <p>Stops the server that saves runtime scenarios.</p> + </desc> + </func> + </funcs> + + <section> + <title>See Also</title> + <p><seealso marker="erts:erts_alloc">erts_alloc(3)</seealso>, + <seealso marker="erts:erl">erl(1)</seealso>, + <seealso marker="stdlib:io">io(3)</seealso></p> + </section> +</erlref> + + diff --git a/lib/runtime_tools/doc/src/fascicules.xml b/lib/runtime_tools/doc/src/fascicules.xml new file mode 100644 index 0000000000..5230dc7e90 --- /dev/null +++ b/lib/runtime_tools/doc/src/fascicules.xml @@ -0,0 +1,15 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE fascicules SYSTEM "fascicules.dtd"> + +<fascicules> + <fascicule file="refman" href="refman_frame.html" entry="yes"> + Reference Manual + </fascicule> + <fascicule file="part_notes" href="part_notes_frame.html" entry="no"> + Release Notes + </fascicule> + <fascicule file="" href="../../../../doc/print.html" entry="no"> + Off-Print + </fascicule> +</fascicules> + diff --git a/lib/runtime_tools/doc/src/make.dep b/lib/runtime_tools/doc/src/make.dep new file mode 100644 index 0000000000..85eae88adf --- /dev/null +++ b/lib/runtime_tools/doc/src/make.dep @@ -0,0 +1,20 @@ +# ---------------------------------------------------- +# >>>> Do not edit this file <<<< +# This file was automaticly generated by +# /home/otp/bin/docdepend +# ---------------------------------------------------- + + +# ---------------------------------------------------- +# TeX files that the DVI file depend on +# ---------------------------------------------------- + +book.dvi: book.tex dbg.tex erts_alloc_config.tex refman.tex \ + runtime_tools_app.tex + +# ---------------------------------------------------- +# Source inlined when transforming from source to LaTeX +# ---------------------------------------------------- + +book.tex: refman.xml + diff --git a/lib/runtime_tools/doc/src/note.gif b/lib/runtime_tools/doc/src/note.gif Binary files differnew file mode 100644 index 0000000000..6fffe30419 --- /dev/null +++ b/lib/runtime_tools/doc/src/note.gif diff --git a/lib/runtime_tools/doc/src/notes.xml b/lib/runtime_tools/doc/src/notes.xml new file mode 100644 index 0000000000..3262e4819b --- /dev/null +++ b/lib/runtime_tools/doc/src/notes.xml @@ -0,0 +1,503 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE chapter SYSTEM "chapter.dtd"> + +<chapter> + <header> + <copyright> + <year>2004</year><year>2009</year> + <holder>Ericsson AB. All Rights Reserved.</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + </legalnotice> + + <title>Runtime_Tools Release Notes</title> + <prepared></prepared> + <docno></docno> + <date></date> + <rev></rev> + <file>notes.xml</file> + </header> + <p>This document describes the changes made to the Runtime_Tools + application.</p> + +<section><title>Runtime_Tools 1.8.2</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + The documentation is now built with open source tools + (xsltproc and fop) that exists on most platforms. One + visible change is that the frames are removed.</p> + <p> + Own Id: OTP-8201</p> + </item> + </list> + </section> + +</section> + +<section><title>Runtime_Tools 1.8.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + <c>Makefile.in</c> has been updated to use the LDFLAGS + environment variable (if set). (Thanks to Davide + Pesavento.)</p> + <p> + Own Id: OTP-8157</p> + </item> + </list> + </section> + +</section> + +<section><title>Runtime_Tools 1.8</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + <c>etop</c> would crash if the emulator's custom + allocators had been turned off (e.g. using the + <c>+Meamin</c> option).</p> + <p> + Own Id: OTP-7519</p> + </item> + <item> + <p>The copyright notices have been updated.</p> + <p> + Own Id: OTP-7851</p> + </item> + <item> + <p>Now, dbg:p/2 accepts {X,Y,Z} process specification as + stated in the documentation. It also now accepts + "<X.Y.Z>" like from erlang:pid_to_list/1.</p> + <p>There is now a pre-saved match spec in dbg that saves + a lot of typing. Use dbg:ltp/0 to find out more...</p> + <p> + Own Id: OTP-7867</p> + </item> + </list> + </section> + +</section> + +<section><title>Runtime_Tools 1.7.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p>Fixed a timestamp problem where some events could be + sent out of order. Minor fixes to presentation of + data.</p> + <p> + Own Id: OTP-7544 Aux Id: otp-7442 </p> + </item> + </list> + </section> + +</section> + +<section><title>Runtime_Tools 1.7.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p><c>etop</c> now collects process information faster + and more reliably than before (a race condition reported + by Igor Goryachev has been eliminated).</p> + <p>Trace messages could be lost when <c>ttb:stop/0</c> + was called.</p> + <p> + Own Id: OTP-7164</p> + </item> + </list> + </section> + +</section> + +<section><title>Runtime_Tools 1.7.1</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>The documentation has been updated so as to reflect + the last updates of the Erlang shell as well as the minor + modifications of the control sequence <c>p</c> of the + <c>io_lib</c> module.</p> <p>Superfluous empty lines have + been removed from code examples and from Erlang shell + examples.</p> + <p> + Own Id: OTP-6944 Aux Id: OTP-6554, OTP-6911 </p> + </item> + <item> + <p>Memory management improvements especially for the + runtime system with SMP support:</p> <list> <item> The + runtime system with SMP support can now use multiple, + thread specific instances of most memory allocators. This + improves performance since it reduces lock contention in + the memory allocators. It may however increase memory + usage for some applications. The runtime system with SMP + support will by default enable this feature on most + allocators. The amount of instances used can be + configured. </item> <item> <c>driver_alloc()</c>, + <c>driver_realloc()</c>, and <c>driver_free()</c> now use + their own erts specific memory allocator instead of the + default <c>malloc()</c> implementation on the system. + </item> <item> The default configuration of some + allocators have been changed to fit applications that use + much memory better. </item> <item> Some new + <c>erts_alloc</c> configuration parameters have been + added. </item> <item> <c>erts_alloc_config</c> has been + modified to be able to create configurations suitable for + multiple instances of allocators. </item> <item> The + returned value from <c>erlang:system_info({allocator, + Alloc})</c> has been changed. This since an allocator may + now run in multiple instances. </item> </list> <p>If you + for some reason want the memory allocators to be + configured as before, you can pass the <c>+Mea r11b</c> + command-line argument to <c>erl</c>.</p> <p>For more + information see the <c>erts_alloc(3)</c>, the + <c>erts_alloc_config(3)</c>, and the <c>erlang(3)</c> + documentation.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-7100</p> + </item> + </list> + </section> + +</section> + +<section><title>Runtime_Tools 1.7</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + <c>dbg</c> could leave traced processes in a suspended + state if the tracer process was killed with exit reason + <c>kill</c>.</p> + <p> + <c>erlang:suspend_process/2</c> has been introduced which + accepts an option list as second argument. For more + information see the <c>erlang(3)</c> documentation.</p> + <p> + Processes suspended via + <c>erlang:suspend_process/[1,2]</c> will now be + automatically resumed if the process that called + <c>erlang:suspend_process/[1,2]</c> terminates.</p> + <p> + Processes could previously be suspended by one process + and resumed by another unless someone was tracing the + suspendee. This is <em>not</em> possible anymore. The + process resuming a process <em>has</em> to be the one + that suspended it.</p> + <p> + *** POTENTIAL INCOMPATIBILITY ***</p> + <p> + Own Id: OTP-6946</p> + </item> + </list> + </section> + + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + The undocumented and unsupported function + <c>dbg:tracer/1</c> has been removed. The undocumented, + unsupported, and broken function <c>dbg:i/1</c> has been + removed.</p> + <p> + Own Id: OTP-6939</p> + </item> + </list> + </section> + +</section> + +<section><title>Runtime_Tools 1.6.8</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + In this release the following has been fixed and + enhanced: Autostart: It is now possible to configure + modules that shall be loaded by the autostart mechanism. + This because it is not certain that all application + systems make use of the OTP boot script to set up paths + to all Erlang modules. Runtime_tools/Inviso: A bug in the + fetch_log functionality has been fixed. Further a bug + that was (supposedly) fixed in a previous patch + concerning meta-tracer write_ti has been fixed (again) in + this patch. A bug in inviso_as_lib making remote + autostart config file updates fail has been fixed. + Inviso: inviso_tool has been given a flush API.</p> + <p> + Own Id: OTP-6918</p> + </item> + </list> + </section> + +</section> +<section><title>Runtime_Tools 1.6.7</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p> + The following bugs/improvements have been done: Internal + interworking between inviso_rt and inviso_rt_meta. The + call function used by inviso_rt to call inviso_rt_meta is + now protected with a monitor. Inviso_rt_meta now includes + the timestamp of the incoming meta trace message when + calling the call-callback. (Makes it possible to add a + "better" timestamp to the ti-file.) Bug in inviso_tool + making it not remove trace patterns when terminating. Bug + in internal function h_start_session making inviso_tool + crash if there were no active nodes to start the session + on. The user-inviso_tool and inviso API-inviso control + component request/response gen_server protocols had + default time-out. Since many trace operations can be time + consuming, a longer time-out is necessary. Improved + overload protection. It is now possible to let the + overload protection renew itself (e.g after an exit from + an external overload protector). Inviso_rt_meta now fully + uses the exception_trace match spec action term. Run + Trace Case API (as in contrast to activate and deactivate + trace case APIs) in inviso_tool. Flush trace-port API + added to inviso. Get_session_data API added to + inviso_tool. Improved inviso_tool:stop making it possible + to name nodes which shall not have their trace patterns + removed when inviso_tool terminates. Bug in handling of + writing multiple ti-entries if returned from a + call/return_from call-back in inviso_rt_meta Process + trace flags are no longer explicitly removed by the + inviso_tool when it terminates. Not necessary. + Inviso_tool get_autostart_data adopted to standard + autostarter.</p> + <p> + *** INCOMPATIBILITY with Meta trace call-backs are called + with different arguments now. ***</p> + <p> + Own Id: OTP-6881</p> + </item> + </list> + </section> + +</section> + + <section> + <title>Runtime_Tools 1.6.6</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>A bug in inviso_rt_meta caused an ETS table containing + information on initiated (init_tpm) functions to be lost + when suspending tracing. Further an enhancement to + inviso_rt has been introduced making it possible to + activate process trace flags based on globally registered + names. It is then not an error to activate a global name + on a node where the name does not reside. The process + count in the return value will simply be set to zero + (hence exactly one node in the NodeResult part of the + return value will indicate one matching process found). A + bug was found in fetch_log API. At the same time the + fetch_log functionality was enhanced to also offer flow + control making fetcher processes send chunks of + transferred file data at a slower pace.</p> + <p>Own Id: OTP-6703</p> + </item> + </list> + </section> + + <section> + <title>Improvements and New Features</title> + <list type="bulleted"> + <item> + <p>Minor Makefile changes.</p> + <p>Own Id: OTP-6689 Aux Id: OTP-6742 </p> + </item> + <item> + <p>An experimental tool called <c>erts_alloc_config</c> + has been added. <c>erts_alloc_config</c> is intended to + be used to aid creation of an <c>erts_alloc</c> + configuration that is suitable for a limited number of + runtime scenarios. For more information see the + <c>erts_alloc_config(3)</c> documentation.</p> + <p>Own Id: OTP-6700</p> + </item> + </list> + </section> + </section> + + <section> + <title>Runtime_Tools 1.6.5</title> + + <section> + <title>Improvements and New Features</title> + <list type="bulleted"> + <item> + <p>Misc improvements.</p> + <p>Own Id: OTP-6576</p> + </item> + </list> + </section> + </section> + + <section> + <title>Runtime_Tools 1.6.4</title> + + <section> + <title>Improvements and New Features</title> + <list type="bulleted"> + <item> + <p>This application has been updated to eliminate warnings + by Dialyzer.</p> + <p>Own Id: OTP-6551</p> + </item> + </list> + </section> + </section> + + <section> + <title>Runtime_Tools 1.6.3</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>This ticket includes several improvements and bugfixes to + both runtime_tools and inviso. The overload mechanism can + now also react to incoming messages. This is useful if + an external overload watch-dog is used. Some improvements + of variable bindings has been done to the default + autostart mechanism - inviso_autostart_server. Autostart + "jobs" can now be done in parallel, allowing for some + jobs to hang waiting for some parts of the traced system + to become ready before proceeding. Previously when using + named meta-match-specs (tpm_ms) ending up with zero + match-specs still kept the meta trace pattern active. + This caused zero match-specs to be equal to unlimited + meta tracing on that particular function. If the internal + database becomes empty of meta match specs, meta trace + pattern is removed for that function. Standard public + loop data in the inviso runtime meta tracer process is + now extended to a 2-tuple. The functions ctp/1 and ctpl/1 + are added making it possible to remove trace patterns for + a list of functions rather than one by one. + Inviso_rt_meta will now accept a list of binaries to be + output into the trace information file, in additions to a + single binary. Further it is also possible to make own + output to the trace information file using the write_ti/1 + function. An error was discovered in inviso_rt making the + inviso_rt_meta remain rather than terminate if the + inviso_rt terminated due to "running alone" (not allowed + to run without a control component). A new tool, + inviso_tool, has been added to the inviso application.</p> + <p>Own Id: OTP-6426</p> + </item> + </list> + </section> + </section> + + <section> + <title>Runtime_Tools 1.6.2</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>Several minor bugs and race conditions eliminated in the + runtime_tools and observer applications.</p> + <p>Own Id: OTP-6265</p> + </item> + </list> + </section> + </section> + + <section> + <title>Runtime_Tools 1.6.1</title> + + <section> + <title>Improvements and New Features</title> + <list type="bulleted"> + <item> + <p>There are new BIFs <c>erlang:spawn_monitor/1,3</c>, + and the new option <c>monitor</c> for + <c>spawn_opt/2,3,4,5</c>.</p> + <p>The <c>observer_backend</c> module has been updated to + handle the new BIFs.</p> + <p>Own Id: OTP-6281</p> + </item> + </list> + </section> + </section> + + <section> + <title>Runtime_Tools 1.6</title> + <p>Added the runtime part of the Inviso tracer, see the new Inviso + application for more information. This also meant adding an + application callback module and an application supervisor tree + for Runtime_Tools.</p> + </section> + + <section> + <title>Runtime_Tools 1.5.1.1</title> + + <section> + <title>Improvements and New Features</title> + <list type="bulleted"> + <item> + <p>The <c>dbg</c> manual page has been updated with information + about how to avoid deadlock when tracing.</p> + <p>Own Id: OTP-5373 Aux Id: seq9729</p> + </item> + </list> + </section> + </section> + + <section> + <title>Runtime_Tools 1.5.1</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>Linked in drivers in the Crypto, and Asn1 applications + are now compiled with the <c>-D_THREAD_SAFE</c> and + <c>-D_REENTRANT</c> switches on unix when the emulator has + thread support enabled.</p> + <p>Linked in drivers on MacOSX are not compiled with the + undocumented <c>-lbundle1.o</c> switch anymore. Thanks to + Sean Hinde who sent us a patch.</p> + <p>Linked in driver in Crypto, and port programs in SSL, now + compiles on OSF1.</p> + <p>Minor <c>Makefile</c> improvements in Runtime_Tools.</p> + <p>Own Id: OTP-5346</p> + </item> + </list> + </section> + </section> +</chapter> + diff --git a/lib/runtime_tools/doc/src/notes_history.xml b/lib/runtime_tools/doc/src/notes_history.xml new file mode 100644 index 0000000000..587d935e0a --- /dev/null +++ b/lib/runtime_tools/doc/src/notes_history.xml @@ -0,0 +1,48 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE chapter SYSTEM "chapter.dtd"> + +<chapter> + <header> + <copyright> + <year>2006</year> + <year>2007</year> + <holder>Ericsson AB, All Rights Reserved</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + The Initial Developer of the Original Code is Ericsson AB. + </legalnotice> + + <title>Runtime_Tools Release Notes History</title> + <prepared></prepared> + <docno></docno> + <date></date> + <rev></rev> + </header> + + <section> + <title>Runtime_Tools 1.5</title> + + <section> + <title>Fixed Bugs and Malfunctions</title> + <list type="bulleted"> + <item> + <p>Trace IP port with port number 0 can now be opened on + 64-bit.</p> + <p>Own Id: OTP-5023</p> + </item> + </list> + </section> + </section> +</chapter> + diff --git a/lib/runtime_tools/doc/src/part_notes.xml b/lib/runtime_tools/doc/src/part_notes.xml new file mode 100644 index 0000000000..6f7f610da0 --- /dev/null +++ b/lib/runtime_tools/doc/src/part_notes.xml @@ -0,0 +1,38 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE part SYSTEM "part.dtd"> + +<part xmlns:xi="http://www.w3.org/2001/XInclude"> + <header> + <copyright> + <year>2004</year><year>2009</year> + <holder>Ericsson AB. All Rights Reserved.</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + </legalnotice> + + <title>Runtime_Tools Release Notes</title> + <prepared></prepared> + <docno></docno> + <date></date> + <rev></rev> + </header> + <description> + <p><em>Runtime_Tools</em> provides low footprint tracing/debugging + tools suitable for inclusion in a production system.</p> + <p>For information about older versions, see + <url href="part_notes_history_frame.html">Release Notes History</url>.</p> + </description> + <xi:include href="notes.xml"/> +</part> + diff --git a/lib/runtime_tools/doc/src/part_notes_history.xml b/lib/runtime_tools/doc/src/part_notes_history.xml new file mode 100644 index 0000000000..cdd727780c --- /dev/null +++ b/lib/runtime_tools/doc/src/part_notes_history.xml @@ -0,0 +1,38 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE part SYSTEM "part.dtd"> + +<part> + <header> + <copyright> + <year>2006</year> + <year>2007</year> + <holder>Ericsson AB, All Rights Reserved</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + The Initial Developer of the Original Code is Ericsson AB. + </legalnotice> + + <title>Runtime_Tools Release Notes History</title> + <prepared></prepared> + <docno></docno> + <date></date> + <rev></rev> + </header> + <description> + <p><em>Runtime_Tools</em> provides low footprint tracing/debugging + tools suitable for inclusion in a production system.</p> + </description> + <include file="notes_history"></include> +</part> + diff --git a/lib/runtime_tools/doc/src/ref_man.xml b/lib/runtime_tools/doc/src/ref_man.xml new file mode 100644 index 0000000000..579efcd969 --- /dev/null +++ b/lib/runtime_tools/doc/src/ref_man.xml @@ -0,0 +1,38 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE application SYSTEM "application.dtd"> + +<application xmlns:xi="http://www.w3.org/2001/XInclude"> + <header> + <copyright> + <year>1999</year><year>2009</year> + <holder>Ericsson AB. All Rights Reserved.</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + </legalnotice> + + <title>Runtime_Tools Reference Manual</title> + <prepared>Patrik Nyblom</prepared> + <docno></docno> + <date>1999-05-27</date> + <rev>A</rev> + </header> + <description> + <p><em>Runtime_Tools</em> provides low footprint tracing/debugging + tools suitable for inclusion in a production system.</p> + </description> + <xi:include href="runtime_tools_app.xml"/> + <xi:include href="dbg.xml"/> + <xi:include href="erts_alloc_config.xml"/> +</application> + diff --git a/lib/runtime_tools/doc/src/runtime_tools_app.xml b/lib/runtime_tools/doc/src/runtime_tools_app.xml new file mode 100644 index 0000000000..e31c8cb5f7 --- /dev/null +++ b/lib/runtime_tools/doc/src/runtime_tools_app.xml @@ -0,0 +1,56 @@ +<?xml version="1.0" encoding="latin1" ?> +<!DOCTYPE appref SYSTEM "appref.dtd"> + +<appref> + <header> + <copyright> + <year>1999</year> + <year>2007</year> + <holder>Ericsson AB, All Rights Reserved</holder> + </copyright> + <legalnotice> + The contents of this file are subject to the Erlang Public License, + Version 1.1, (the "License"); you may not use this file except in + compliance with the License. You should have received a copy of the + Erlang Public License along with this software. If not, it can be + retrieved online at http://www.erlang.org/. + + Software distributed under the License is distributed on an "AS IS" + basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See + the License for the specific language governing rights and limitations + under the License. + + The Initial Developer of the Original Code is Ericsson AB. + </legalnotice> + + <title>runtime_tools</title> + <prepared>Patrik Nyblom</prepared> + <responsible>Patrik Nyblom</responsible> + <docno></docno> + <approved></approved> + <checked></checked> + <date>1999-05-27</date> + <rev>PA1</rev> + <file>runtime_tools_app.sgml</file> + </header> + <app>runtime_tools</app> + <appsummary>The Runtime tools Application</appsummary> + <description> + <p>This chapter describes the Runtime_Tools application in OTP, + which provides low footprint tracing/debugging tools suitable + for inclusion in a production system.</p> + </description> + + <section> + <title>Configuration</title> + <p>There are currently no configuration parameters available for + this application. + </p> + </section> + + <section> + <title>SEE ALSO</title> + <p>application(3)</p> + </section> +</appref> + diff --git a/lib/runtime_tools/doc/src/warning.gif b/lib/runtime_tools/doc/src/warning.gif Binary files differnew file mode 100644 index 0000000000..96af52360e --- /dev/null +++ b/lib/runtime_tools/doc/src/warning.gif |
