.\" Author:
.\" Miguel de Icaza (miguel@gnu.org)
.\"
-.TH Mono "Mono 4.5.2"
+.TH Mono "mono"
.SH NAME
mono \- Mono's ECMA-CLI native code generator (Just-in-Time and Ahead-of-Time)
.SH SYNOPSIS
.I llvm-path=<PREFIX>
Same for the llvm tools 'opt' and 'llc'.
.TP
-.I gen-seq-points-file=FILE.msym
+.I msym-dir=<PATH>
Instructs the AOT compiler to generate offline sequence points .msym files.
-The path is optional, if none is passed then a .msym file will be generated
-next to the input assembly.
+The generated .msym files will be stored into a subfolder of <PATH> named as the
+compilation AOTID.
.TP
.I mtriple=<TRIPLE>
Use the GNU style target triple <TRIPLE> to determine some code generation options, i.e.
specified in the MONO_CONFIG environment variable, if set. See the
mono-config(5) man page for details on the format of this file.
.TP
+\fB--aot-path=PATH\fR
+List of additional directories to search for AOT images.
+.TP
\fB--debugger-agent=[options]\fR
This instructs the Mono runtime to
start a debugging agent inside the Mono runtime and connect it to a
\fBMONO_ENV_OPTIONS\fR environment variable to force all of your child
processes to use one particular kind of GC with the Mono runtime.
.TP
+\fB--gc-debug=[options]\fR
+Command line equivalent of the \fBMONO_GC_DEBUG\fR environment variable.
+.TP
+\fB--gc-params=[options]\fR
+Command line equivalent of the \fBMONO_GC_PARAMS\fR environment variable.
+.TP
\fB--arch=32\fR, \fB--arch=64\fR
(Mac OS X only): Selects the bitness of the Mono binary used, if
available. If the binary used is already for the selected bitness, nothing
Don't align stack frames on the x86 architecture. By default, Mono
aligns stack frames to 16 bytes on x86, so that local floating point
and SIMD variables can be properly aligned. This option turns off the
-alignment, which usually saves one intruction per call, but might
+alignment, which usually saves one instruction per call, but might
result in significantly lower floating point and SIMD performance.
.TP
\fB--jitmap\fR
.PP
A more powerful coverage tool is available in the module `monocov'.
See the monocov(1) man page for details.
+.SH AOT PROFILING
+You can improve startup performance by using the AOT profiler.
+.PP
+Typically the AOT compiler (\fBmono --aot\fR) will not generate code
+for generic instantiations. To solve this, you can run Mono with the
+AOT profiler to find out all the generic instantiations that are used,
+and then instructing the AOT compiler to produce code for these.
+.PP
+This command will run the specified app.exe and produce the
+\fBout.aotprof\fR file with the data describing the generic
+instantiations that are needed:
+.nf
+ $ mono --profile=aot:output=out.aotprof app.exe
+.fi
+.PP
+Once you have this data, you can pass this to Mono's AOT compiler to
+instruct it to generate code for it:
+.nf
+ $ mono --aot=profile=out.aotprof
+.fi
.SH DEBUGGING AIDS
To debug managed applications, you can use the
.B mdb
to force all of your Mono processes to use LLVM or SGEN without having
to modify any launch scripts.
.TP
-\fBMONO_ENV_OPTIONS\fR
+\fBMONO_SDB_ENV_OPTIONS\fR
Used to pass extra options to the debugger agent in the runtime, as they were passed
using --debugger-agent=.
.TP
.TP
\fBcollect-before-allocs\fR
.TP
-\fBcheck-at-minor-collections\fR
-This performs a consistency check on minor collections and also clears
-the nursery at collection time, instead of the default, when buffers
-are allocated (clear-at-gc). The consistency check ensures that
-there are no major to minor references that are not on the remembered
-sets.
+\fBcheck-remset-consistency\fR
+This performs a remset consistency check at various opportunities, and
+also clears the nursery at collection time, instead of the default,
+when buffers are allocated (clear-at-gc). The consistency check
+ensures that there are no major to minor references that are not on
+the remembered sets.
.TP
\fBmod-union-consistency-check\fR
Checks that the mod-union cardtable is consistent before each
IL stack is empty. These are places where the debugger can set a
breakpoint.
.TP
-\fBgen-compact-seq-points\fR
-This option generates sequence points data that maps native offsets to
-IL offsets. Sequence point data is used to display IL offset in
-stacktraces. Stacktraces with IL offsets can be symbolicated using
-mono-symbolicate tool.
+\fBno-compact-seq-points\fR
+Unless the option is used, the runtime generates sequence points data that
+maps native offsets to IL offsets. Sequence point data is used to
+display IL offset in stacktraces. Stacktraces with IL offsets can be
+symbolicated using mono-symbolicate tool.
.TP
\fBhandle-sigint\fR
Captures the interrupt signal (Control-C) and displays a stack trace
This option allows using single-steps and breakpoints in hardware
where we cannot do it with signals.
.TP
-\fBsuspend-on-sigsegv\fR
-This option will suspend the program when a native SIGSEGV is received.
+\fBsuspend-on-native-crash\fR
+This option will suspend the program when a native crash occurs (SIGSEGV, SIGILL, ...).
This is useful for debugging crashes which do not happen under gdb,
since a live process contains more information than a core file.
.TP
+\fBsuspend-on-sigsegv\fR
+Same as \fBsuspend-on-native-crash\fR.
+.TP
\fBsuspend-on-exception\fR
This option will suspend the program when an exception occurs.
.TP
separating them. For example to see config file messages and assembly loader
messages set you mask to "asm,cfg".
.TP
+\fBMONO_LOG_DEST\fR
+Controls where trace log messages are written. If not set then the messages go to stdout.
+If set, the string either specifies a path to a file that will have messages appended to
+it, or the string "syslog" in which case the messages will be written to the system log.
+Under Windows, this is simulated by writing to a file called "mono.log".
+\fBMONO_LOG_HEADER\fR
+Controls whether trace log messages not directed to syslog have the id, timestamp, and
+pid as the prefix to the log message. To enable a header this environment variable need
+just be non-null.
+.TP
\fBMONO_TRACE\fR
Used for runtime tracing of method calls. The format of the comma separated
trace options is:
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