.\"
.\" mono manual page.
.\" (C) 2003 Ximian, Inc.
+.\" (C) 2004-2005 Novell, Inc.
.\" Author:
.\" Miguel de Icaza (miguel@gnu.org)
.\"
intrins Intrinsic method implementations
tailc Tail recursion and tail calls
loop Loop related optimizations
+ fcmov Fast x86 FP compares
leaf Leaf procedures optimizations
- profile Use profiling information
+ aot Usage of Ahead Of Time compiled code
+ precomp Precompile all methods before executing Main
+ abcrem Array bound checks removal
+ ssapre SSA based Partial Redundancy Elimination
.fi
.Sp
For example, to enable all the optimization but dead code
-O=all,-deadce,-inline
.fi
.TP
+.I "--security"
+Activate the security manager (experimental feature in 1.1). This allows
+mono to support declarative security attributes (e.g. execution of, CAS
+or non-CAS, security demands). The security manager is OFF by default
+(experimental).
+.TP
.I "-V", "--version"
Prints JIT version information.
.I "--profile[=profiler[:profiler_args]]"
Instructs the runtime to collect profiling information about execution
times and memory allocation, and dump it at the end of the execution.
-If a profiler is not specified, the default profiler is used. profiler_args
+If a profiler is not specified, the default profiler is used.
+.Sp
+Mono has a built-in profiler called `default' (and is also the default
+if no arguments are specified), but developers can write custom
+profilers as shared libraries. The shared library must be called
+`mono-profiler-NAME.so' where `NAME' is the name of your profiler.
+.Sp
+For a sample of the custom profilers look in the Mono source tree for
+in the samples/profiler.c.
+.Sp
+The
+.I profiler_args
is a profiler-specific string of options for the profiler itself.
-.PP
-The default profiler accepts -time and -alloc to options to disable
-the time profiling or the memory allocation profilng.
+.Sp
+The default profiler is called `default' and it accepts `alloc' to
+profile memory consumption by the application; `time' to profile the
+time spent on each routine and `stat' to perform sample statistical
+profiling. If no options are provided the default is `alloc,time'.
+.Sp
+For example:
+.nf
+ mono --profile program.exe
+.fi
+.Sp
+That will run the program with the default profiler and will do time
+and allocation profiling.
+.Sp
+.nf
+ mono --profile=default:stat,alloc program.exe
+.fi
+Will do sample statistical profiling and allocation profiling on
+program.exe.
+.TP
+.nf
+ mono --profile=custom program.exe
+.fi
+.Sp
+In the above sample Mono will load the user defined profiler from the
+shared library `mono-profiler-custom.so'.
.SH JIT MAINTAINER OPTIONS
The maintainer options are only used by those developing the runtime
itself, and not typically of interest to runtime users or developers.
the specified method (namespace.name:methodname). This requires `dot'
and ghostview to be installed (it expects Ghostview to be called
"gv").
-.PP
+.Sp
The following graphs are available:
.nf
cfg Control Flow Graph (CFG)
.I "--trace[=expression]"
Shows method names as they are invoked. By default all methods are
traced.
-.PP
+.Sp
The trace can be customized to include or exclude methods, classes or
assemblies. A trace expression is a comma separated list of targets,
each target can be prefixed with a minus sign to turn off a particular
target. The words `program' and `all' have special meaning.
`program' refers to the main program being executed, and `all' means
all the method calls.
-.PP
+.Sp
Assemblies are specified by their name, for example, to trace all
calls in the System assembly, use:
.nf
standar method notation:
.nf
- mono --trace=M:System.Console.WriteLine app.exe
+ mono --trace=M:System.Console:WriteLine app.exe
.fi
As previously noted, various rules can be specified at once:
mono --trace=N:System.Xml
.fi
+.SH DEBUGGING
+.PP
+You can use the MONO_LOG_LEVEL and MONO_LOG_MASK environment variables
+to get verbose debugging output about the execution of your
+application within Mono.
+.PP
+The
+.I MONO_LOG_LEVEL
+environment variable if set, the logging level is changed to the set
+value. Possible values are "error", "critical", "warning", "message",
+"info", "debug". The default value is "error". Messages with a logging
+level greater then or equal to the log level will be printed to
+stdout/stderr.
+.PP
+Use "info" to track the dynamic loading of assemblies.
+.PP
+.PP
+Use the
+.I MONO_LOG_MASK
+environment variable to limit the extent of the messages you get:
+If set, the log mask is changed to the set value. Possible values are
+"asm" (assembly loader), "type", "dll" (native library loader), "gc"
+(garbage collector), "cfg" (config file loader), "aot" (precompiler) and "all".
+The default value is "all". Changing the mask value allows you to display only
+messages for a certain component. You can use multiple masks by comma
+separating them. For example to see config file messages and assembly loader
+messages set you mask to "asm,cfg".
+.PP
+The following is a common use to track down problems with P/Invoke:
+.nf
+ $ MONO_LOG_LEVEL="debug" MONO_LOG_MASK="dll" mono glue.exe
+.fi
+.PP
+.SH SERIALIZATION
+Mono's XML serialization engine by default will use a reflection-based
+approach to serialize which might be slow for continous processing
+(web service applications). The serialization engine will determine
+when a class must use a hand-tuned serializer based on a few
+parameters and if needed it will produce a customized C# serializer
+for your types at runtime. This customized serializer then gets
+dynamically loaded into your application.
+.PP
+You can control this with the MONO_XMLSERIALIZER_THS environment
+variable.
+.PP
+The possible values are
+.B `no'
+to disable the use of a C# customized
+serializer, or an integer that is the minimum number of uses before
+the runtime will produce a custom serializer (0 will produce a
+custom serializer on the first access, 50 will produce a serializer on
+the 50th use).
.SH ENVIRONMENT VARIABLES
.TP
.I "GC_DONT_GC"
Turns off the garbage collection in Mono. This should be only used
for debugging purposes
.TP
+.I "MONO_AOT_CACHE"
+If set, this variable will instruct Mono to ahead-of-time compile new
+assemblies on demand and store the result into a cache in
+~/.mono/aot-cache.
+.TP
.I "MONO_ASPNET_NODELETE"
If set to any value, temporary source files generated by ASP.NET support
classes will not be removed. They will be kept in the user's temporary
($PREFIX/etc/mono/config). The --config command line options overrides the
environment variable.
.TP
-.I "MONO_LOG_LEVEL"
-If set, the logging level is changed to the set value. Possible values
-are "error", "critical", "warning", "message", "info", "debug". The
-default value is "error". Messages with a logging level greater then
-or equal to the log level will be printed to stdout/stderr.
-.TP
-.I "MONO_LOG_MASK"
-If set, the log mask is changed to the set value. Possible values are
-"asm" (assembly loader), "type", "dll" (native library loader), "gc"
-(garbage collector), "cfg" (config file loader), "all". The default value is
-"all". Changing the mask value allows you to display only messages for
-a certain component. You can use multiple masks by comma separating
-them. For example to see config file messages and assembly loader
-messages set you mask to "asm,cfg".
-.TP
.I "MONO_DEBUG"
If set, enables some features of the runtime useful for debugging.
-It makes the runtime display the stack traces for all the threads
-running and exit when mono is interrupted (Ctrl-C) and print some
-additional messages on error conditions. It may not exit cleanly. Use at
-your own risk.
+This variable should contain a comma separated list of debugging options.
+Currently, the following options are supported:
+.RS
+.ne 8
+.TP
+.I "keep-delegates"
+This option will leak delegate trampolines that are no longer
+referenced as to present the user with more information about a
+delegate missuse. Basically a delegate instance might be created,
+passed to unmanaged code, and no references kept in managed code,
+which will garbage collect the code. With this option it is possible
+to track down the source of the problems.
+.TP
+.I "abort-on-sigsegv"
+This option will make the runtime abort when it receives a SIGSEGV signal
+while executing unmanaged (native) code. This is useful for debugging
+problems when interfacing with native code.
+.ne
+.RE
.TP
.I "MONO_DISABLE_AIO"
If set, tells mono NOT to attempt using native asynchronous I/O services. In
-that case, the threadpool is used for asynchronous I/O on files and sockets.
-.TP
-.I "MONO_DISABLE_SHM"
-If this variable is set, it disables the shared memory part of the
-Windows I/O Emulation layer, and handles (files, events, mutexes,
-pipes) will not be shared across processes. Process creation is also
-disabled. This option is only available on Unix.
+that case, a default select/poll implementation is used. Currently only epoll()
+is supported.
.TP
.I "MONO_EGD_SOCKET"
For platforms that do not otherwise have a way of obtaining random bytes
filenames or arguments to new processes) the first item in this list
is used, or UTF-8 if the environment variable is not set.
.TP
+.I "MONO_GAC_PREFIX"
+Provides a prefix the runtime uses to look for Global Assembly Caches.
+Directories are separated by the platform path separator (colons on
+unix). MONO_GAC_PREFIX should point to the top directory of a prefixed
+install. Or to the directory provided in the gacutil /gacdir command. Example:
+.B /home/username/.mono:/usr/local/mono/
+.TP
+.I "MONO_LOG_LEVEL"
+The logging level, possible values are `error', `critical', `warning',
+`message', `info' and `debug'. See the DEBUGGING section for more
+details.
+.TP
+.I "MONO_LOG_MASK"
+Controls the domain of the Mono runtime that logging will apply to.
+If set, the log mask is changed to the set value. Possible values are
+"asm" (assembly loader), "type", "dll" (native library loader), "gc"
+(garbage collector), "cfg" (config file loader), "aot" (precompiler) and "all".
+The default value is "all". Changing the mask value allows you to display only
+messages for a certain component. You can use multiple masks by comma
+separating them. For example to see config file messages and assembly loader
+messages set you mask to "asm,cfg".
+.TP
.I "MONO_MANAGED_WATCHER"
If set to any value, System.IO.FileSystemWatcher will use the default
managed implementation (slow). If unset, mono will try to use FAM under
Directories are separated by the platform path separator (colons on unix). Example:
.B /home/username/lib:/usr/local/mono/lib
.TP
-.I "MONO_GAC_PREFIX"
-Provides a prefix the runtime uses to look for Global Assembly Caches.
-Directories are separated by the platform path separator (colons on
-unix). MONO_GAC_PREFIX should point to the top directory of a prefixed
-install. Or to the directory provided in the gacutil /gacdir command. Example:
-.B /home/username/.mono:/usr/local/mono/
+.I "MONO_RTC"
+Experimental RTC support in the statistical profiler: if the user has
+the permission, more accurate statistics are gathered. The MONO_RTC
+value must be restricted to what the linux rtc allows: power of two
+from 64 to 8192 Hz. To enable higher frequencies like 4096 Hz, run as root:
+.nf
+ echo 4096 > /proc/sys/dev/rtc/max-user-freq
+.fi
+.Sp
+For example:
+.nf
+ MONO_RTC=4096 mono --profiler=default:stat program.exe
+.fi
+.TP
+.I "MONO_NO_TLS"
+Disable inlining of thread local accesses. Try setting this if you get a segfault
+early on in the execution of mono.
.TP
.I "MONO_SHARED_DIR"
If set its the directory where the ".wapi" handle state is stored.
This is the directory where the Windows I/O Emulation layer stores its
shared state data (files, events, mutexes, pipes). By default Mono
will store the ".wapi" directory in the users's home directory.
+.TP
+.I "MONO_THREADS_PER_CPU"
+The maximum number of threads in the general threadpool will be
+20 + (MONO_THREADS_PER_CPU * number of CPUs). The default value for this
+variable is 5.
+.TP
+.I "MONO_TRACE"
+Used for runtime tracing of method calls. The format of the comma separated
+trace options is:
+.nf
+
+ [-]M:method name
+ [-]N:namespace
+ [-]T:class name
+ [-]all
+ [-]program
+ disabled Trace output off upon start.
+
+.fi
+You can toggle trace output on/off sending a SIGUSR2 signal to the program.
+.TP
+.I "MONO_TRACE_LISTENER"
+If set, enables the System.Diagnostics.DefaultTraceListener, which will
+print the output of the System.Diagnostics Trace and Debug classes.
+It can be set to a filename, and to Console.Out or Console.Error to display
+output to standard output or standard error, respectively. If it's set to
+Console.Out or Console.Error you can append an optional prefix that will
+be used when writing messages like this: Console.Error:MyProgramName.
+See the System.Diagnostics.DefaultTraceListener documentation for more
+information.
+.TP
+.I "MONO_XMLSERIALIZER_THS"
+Controls the threshold for the XmlSerializer to produce a custom
+serializer for a given class instead of using the Reflection-based
+interpreter. The possible values are `no' to disable the use of a
+custom serializer or a number to indicate when the XmlSerializer
+should start serializing. The default value is 50, which means that
+the a custom serializer will be produced on the 50th use.
.SH FILES
On Unix assemblies are loaded from the installation lib directory. If you set
`prefix' to /usr, the assemblies will be located in /usr/lib. On
Windows, the assemblies are loaded from the directory where mono and
mint live.
.PP
+~/.mono/aot-cache
+.PP
+The directory for the ahead-of-time compiler demand creation
+assemblies are located.
+.PP
/etc/mono/config, ~/.mono/config
.PP
Mono runtime configuration file. See the mono-config(5) manual page
for more information.
+.PP
+~/.config/.mono/certs, /usr/share/.mono/certs
+.PP
+Contains Mono certificate stores for users / machine. See the certmgr(1)
+manual page for more information on managing certificate stores.
+.PP
+~/.config/.mono/keypairs, /usr/share/.mono/keypairs
+.PP
+Contains Mono cryptographic keypairs for users / machine. They can be
+accessed by using a CspParameters object with DSACryptoServiceProvider
+and RSACryptoServiceProvider classes.
+.PP
+~/.config/.isolatedstorage, ~/.local/share/.isolatedstorage, /usr/share/.isolatedstorage
+.PP
+Contains Mono isolated storage for non-roaming users, roaming users and
+local machine. Isolated storage can be accessed using the classes from
+the System.IO.IsolatedStorage namespace.
.SH MAILING LISTS
-Visit http://mail.ximian.com/mailman/mono-list for details.
+Visit http://lists.ximian.com/mailman/listinfo/mono-list for details.
.SH WEB SITE
-Visit: http://www.go-mono.com for details
+Visit: http://www.mono-project.com for details
.SH SEE ALSO
-.BR mcs(1), mint(1), monodis(1), mono-config(5).
+.BR mcs(1), mint(1), monodis(1), mono-config(5), certmgr(1).
.PP
For ASP.NET-related documentation, see the xsp(1) manual page
-
-
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