[runtime] Move the monograph tool to tools/.
authorZoltan Varga <vargaz@gmail.com>
Tue, 13 Jan 2015 21:25:19 +0000 (16:25 -0500)
committerZoltan Varga <vargaz@gmail.com>
Tue, 13 Jan 2015 21:25:19 +0000 (16:25 -0500)
configure.ac
mono/Makefile.am
mono/monograph/.gitignore [deleted file]
mono/monograph/ChangeLog [deleted file]
mono/monograph/Makefile.am [deleted file]
mono/monograph/monograph.c [deleted file]
tools/Makefile.am
tools/monograph/.gitignore [new file with mode: 0644]
tools/monograph/ChangeLog [new file with mode: 0644]
tools/monograph/Makefile.am [new file with mode: 0644]
tools/monograph/monograph.c [new file with mode: 0644]

index b91f21651390680dfc951bf60642fb4369bede5e..7f6c468d9582ae4452219ff54504ac89010e198a 100644 (file)
@@ -3820,7 +3820,6 @@ mono/tests/cas/threads/Makefile
 mono/tests/gc-descriptors/Makefile
 mono/unit-tests/Makefile
 mono/benchmark/Makefile
-mono/monograph/Makefile
 mono/io-layer/Makefile
 mono/mini/Makefile
 mono/profiler/Makefile
@@ -3862,6 +3861,7 @@ data/config
 tools/Makefile
 tools/locale-builder/Makefile
 tools/sgen/Makefile
+tools/monograph/Makefile
 runtime/Makefile
 msvc/Makefile
 po/Makefile
index df1a9c1c22e4d59de1b439105db13c9955aa2961..e2af5ccabfc561a67d947a84bbe64d40fb7d64ca 100644 (file)
@@ -26,7 +26,7 @@ monotouch-do-clean:
          (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$target); \
     done;
 else
-SUBDIRS = arch utils io-layer cil metadata mini dis monograph tests unit-tests benchmark profiler
+SUBDIRS = arch utils io-layer cil metadata mini dis tests unit-tests benchmark profiler
 endif
 endif
-DIST_SUBDIRS = arch utils io-layer cil metadata mini dis monograph tests unit-tests benchmark profiler
+DIST_SUBDIRS = arch utils io-layer cil metadata mini dis tests unit-tests benchmark profiler
diff --git a/mono/monograph/.gitignore b/mono/monograph/.gitignore
deleted file mode 100644 (file)
index d249ec9..0000000
+++ /dev/null
@@ -1,9 +0,0 @@
-/.deps
-/.libs
-/Makefile
-/Makefile.in
-/monograph
-/*.o
-/*.lo
-/*.exe
-/TAGS
diff --git a/mono/monograph/ChangeLog b/mono/monograph/ChangeLog
deleted file mode 100644 (file)
index b621d83..0000000
+++ /dev/null
@@ -1,115 +0,0 @@
-
-Wed Feb 24 15:56:52 CET 2010 Paolo Molaro <lupus@ximian.com>
-
-       * Makefile.am, monograph.c: update to the new API/ABI.
-
-2009-08-18  Christian Hergert  <chris@dronelabs.com>
-
-       * monograph.c: Fix printf warnings.
-
-Mon Sep 10 15:03:06 CEST 2007 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: added --size option to collect size statistics
-       per-type (best used with a pipe to sort -n -k3).
-
-2007-03-13  Jonathan Chambers  <joncham@gmail.com>
-
-       * monograph.vcproj: Move to msvc directory.
-       
-2007-03-13  Jonathan Chambers  <joncham@gmail.com>
-
-       * monograph.vcproj: Begin WIN64 port.
-       
-Fri Jan 26 12:37:14 CET 2007 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: warning fixes.
-
-Tue Mar 21 16:01:26 CET 2006 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: fixes to be able to deal with 2.0 assemblies
-       and more stats.
-
-Wed Feb 22 15:11:37 CET 2006 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: update after MonoMethodHeader changes.
-
-Tue Jan 24 18:57:46 CET 2006 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: misc fixes and parent depth stats.
-
-2005-05-26  Sebastien Pouliot  <sebastien@ximian.com>
-
-       * monograph.vcproj: Project file for monograph.
-
-2005-03-29  Sebastien Pouliot  <sebastien@ximian.com>
-
-       * monograph.c: Add mono-compiler.h header to allow/ease compilation
-       with non-GCC compilers. Fix default loading of mscorlib.dll.
-
-2005-02-09  Ben Maurer  <bmaurer@ximian.com>
-
-       * monograph.c (print_method): Don't use method->info, as this will
-       be removed soon.
-
-2005-02-03  Zoltan Varga  <vargaz@freemail.hu>
-
-       * monograph.c: Fix warnings.
-
-Mon May 24 13:36:53 CEST 2004 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: default assembly name is "mscorlib" now.
-
-2003-11-12  Jackson Harper  <jackson@ximian.com>
-
-       * monograph.c: Change default assembly name to mscorlib.dll
-       
-Thu Feb  6 02:43:23 PST 2003 Piers Haken <piersh@friskit.com>
-
-       * monograph.c: more warning cleanups
-
-Tue Jan 28 18:53:08 CET 2003 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: more stats added.
-
-Mon Oct 7 12:25:15 CEST 2002 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: added a --stats command line option to gather
-       statistics about the assembly code.
-
-2002-08-28  Dick Porter  <dick@ximian.com>
-
-       * Makefile.am: Export HOST_CC for w32 builds
-
-Fri Jul 19 14:23:46 CEST 2002 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: simple stats on opcode size.
-
-Thu Mar 28 15:18:50 CET 2002 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: some warning cleanups.
-
-Mon Mar 11 11:58:27 CET 2002 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: update --help output, Make error messages less
-       intimidating and more informative.
-
-Mon Mar 11 11:16:53 CET 2002 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: removed method signature and searching helpers
-       that are now provided in libmetadata. Added --control-flow option to
-       create a control flow graph of a method, with basic blocks etc.
-
-Wed Feb 20 17:53:59 CET 2002 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: added -i option to create a graph of the types
-       implementing an interface.
-
-Tue Feb 19 12:24:15 CET 2002 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: fix typo. Update for changes in mono_init ().
-
-Mon Feb 18 14:37:17 CET 2002 Paolo Molaro <lupus@ximian.com>
-
-       * monograph.c: First commit: program to generate call graphs
-       or type hierarchies from CIL programs.
-
diff --git a/mono/monograph/Makefile.am b/mono/monograph/Makefile.am
deleted file mode 100644 (file)
index 2555580..0000000
+++ /dev/null
@@ -1,60 +0,0 @@
-
-if HOST_WIN32
-export HOST_CC
-endif
-
-if DISABLE_EXECUTABLES
-runtime_lib=../mini/$(LIBMONO_LA) $(static_libs)
-else
-if !SHARED_MONO
-static_libs=   \
-       $(top_builddir)/mono/metadata/libmonoruntime-static.la  \
-       $(top_builddir)/mono/io-layer/libwapi.la        \
-       $(top_builddir)/mono/utils/libmonoutils.la \
-       $(GLIB_LIBS) $(LIBICONV) \
-       $(LIBGC_STATIC_LIBS)
-
-runtime_lib=../mini/$(LIBMONO_LA) $(static_libs)
-else
-runtime_lib=../mini/$(LIBMONO_LA)
-endif
-endif
-
-if DISABLE_EXECUTABLES
-bin_PROGRAMS =
-else
-if DISABLE_LIBRARIES
-bin_PROGRAMS =
-else
-if SUPPORT_BOEHM
-bin_PROGRAMS = monograph
-endif
-endif
-endif
-
-AM_CPPFLAGS =                          \
-       -I$(top_srcdir)                 \
-       $(GLIB_CFLAGS)
-
-monograph_LDADD = \
-       $(runtime_lib)                  \
-       $(GLIB_LIBS)                    \
-       $(LLVM_LIBS)                    \
-       $(LIBICONV)                     \
-       -lm
-
-if PLATFORM_DARWIN
-monograph_LDFLAGS=-framework CoreFoundation
-endif
-
-GRAPHS=System.Object System.Enum System.Attribute System.ValueType System.Reflection.MemberInfo
-OUT=$(GRAPHS:=.jpeg)
-
-graphs: $(OUT)
-
-%.jpeg: monograph
-       ./monograph -n -o $*.png corlib.dll $*
-       convert -geometry '480x360>' $*.png $*.jpeg
-
-EXTRA_DIST = ChangeLog
-
diff --git a/mono/monograph/monograph.c b/mono/monograph/monograph.c
deleted file mode 100644 (file)
index 27f1a5f..0000000
+++ /dev/null
@@ -1,1207 +0,0 @@
-#include <glib.h>
-#include <string.h>
-#include <math.h>
-#include "mono/metadata/metadata-internals.h"
-#include "mono/metadata/class-internals.h"
-#include "mono/metadata/assembly.h"
-#include "mono/metadata/tokentype.h"
-#include "mono/metadata/opcodes.h"
-#include "mono/metadata/tabledefs.h"
-#include "mono/metadata/mono-endian.h"
-#include "mono/metadata/appdomain.h" /* mono_init */
-#include "mono/metadata/debug-helpers.h"
-#include "mono/utils/mono-compiler.h"
-
-static FILE *output;
-static int include_namespace = 0;
-static int max_depth = 6;
-static int verbose = 0;
-static const char *graph_properties = "\tnode [fontsize=8.0]\n\tedge [len=2,color=red]\n";
-
-#if defined(__native_client__) || defined(__native_client_codegen__)
-volatile int __nacl_thread_suspension_needed = 0;
-void __nacl_suspend_thread_if_needed() {}
-#endif
-
-static void
-output_type_edge (MonoClass *first, MonoClass *second) {
-       if (include_namespace)
-               fprintf (output, "\t\"%s.%s\" -> \"%s.%s\"\n", first->name_space, first->name, second->name_space, second->name);
-       else
-               fprintf (output, "\t\"%s\" -> \"%s\"\n", first->name, second->name);
-}
-
-static void
-print_subtypes (MonoImage *image, MonoClass *class, int depth) {
-       int i, token;
-       const MonoTableInfo *t;
-       MonoClass *child;
-
-       if (depth++ > max_depth)
-               return;
-
-       t = mono_image_get_table_info (image, MONO_TABLE_TYPEDEF);
-       
-       token = mono_metadata_token_index (class->type_token);
-       token <<= MONO_TYPEDEFORREF_BITS;
-       token |= MONO_TYPEDEFORREF_TYPEDEF;
-
-       /* use a subgraph? */
-       for (i = 0; i < mono_table_info_get_rows (t); ++i) {
-               if (token == mono_metadata_decode_row_col (t, i, MONO_TYPEDEF_EXTENDS)) {
-                       child = mono_class_get (image, MONO_TOKEN_TYPE_DEF | (i + 1));
-                       output_type_edge (class, child);
-                       print_subtypes (image, child, depth);
-               }
-       }
-}
-
-static void
-type_graph (MonoImage *image, const char* cname) {
-       MonoClass *class;
-       MonoClass *parent;
-       MonoClass *child;
-       const char *name_space;
-       char *p;
-       int depth = 0;
-
-       cname = g_strdup (cname);
-       p = strrchr (cname, '.');
-       if (p) {
-               name_space = cname;
-               *p++ = 0;
-               cname = p;
-       } else {
-               name_space = "";
-       }
-       class = mono_class_from_name (image, name_space, cname);
-       if (!class) {
-               g_print ("class %s.%s not found\n", name_space, cname);
-               exit (1);
-       }
-       fprintf (output, "digraph blah {\n");
-       fprintf (output, "%s", graph_properties);
-       child = class;
-       /* go back and print the parents for the node as well: not sure it's a good idea */
-       for (parent = class->parent; parent; parent = parent->parent) {
-               output_type_edge (parent, child);
-               child = parent;
-       }
-       print_subtypes (image, class, depth);
-       fprintf (output, "}\n");
-}
-
-static void
-interface_graph (MonoImage *image, const char* cname) {
-       MonoClass *class;
-       MonoClass *child;
-       const char *name_space;
-       char *p;
-       guint32 cols [MONO_INTERFACEIMPL_SIZE];
-       guint32 token, i, count = 0;
-       const MonoTableInfo *intf = mono_image_get_table_info (image, MONO_TABLE_INTERFACEIMPL);
-
-       cname = g_strdup (cname);
-       p = strrchr (cname, '.');
-       if (p) {
-               name_space = cname;
-               *p++ = 0;
-               cname = p;
-       } else {
-               name_space = "";
-       }
-       class = mono_class_from_name (image, name_space, cname);
-       if (!class) {
-               g_print ("interface %s.%s not found\n", name_space, cname);
-               exit (1);
-       }
-       /* chek if it's really an interface... */
-       fprintf (output, "digraph interface {\n");
-       fprintf (output, "%s", graph_properties);
-       /* TODO: handle inetrface defined in one image and class defined in another. */
-       token = mono_metadata_token_index (class->type_token);
-       token <<= MONO_TYPEDEFORREF_BITS;
-       token |= MONO_TYPEDEFORREF_TYPEDEF;
-       for (i = 0; i < mono_table_info_get_rows (intf); ++i) {
-               mono_metadata_decode_row (intf, i, cols, MONO_INTERFACEIMPL_SIZE);
-               /*g_print ("index: %d [%d implements %d]\n", index, cols [MONO_INTERFACEIMPL_CLASS], cols [MONO_INTERFACEIMPL_INTERFACE]);*/
-               if (token == cols [MONO_INTERFACEIMPL_INTERFACE]) {
-                       child = mono_class_get (image, MONO_TOKEN_TYPE_DEF | cols [MONO_INTERFACEIMPL_CLASS]);
-                       output_type_edge (class, child);
-                       count++;
-               }
-       }
-       fprintf (output, "}\n");
-       if (verbose && !count)
-               g_print ("No class implements %s.%s\n", class->name_space, class->name);
-
-}
-
-static int back_branch_waste = 0;
-static int branch_waste = 0;
-static int var_waste = 0;
-static int int_waste = 0;
-static int nop_waste = 0;
-static int has_exceptions = 0;
-static int num_exceptions = 0;
-static int max_exceptions = 0;
-static int has_locals = 0;
-static int num_locals = 0;
-static int max_locals = 0;
-static int has_args = 0;
-static int num_args = 0;
-static int max_args = 0;
-static int has_maxstack = 0;
-static int num_maxstack = 0;
-static int max_maxstack = 0;
-static int has_code = 0;
-static int num_code = 0;
-static int max_code = 0;
-static int has_branch = 0;
-static int num_branch = 0;
-static int max_branch = 0;
-static int has_condbranch = 0;
-static int num_condbranch = 0;
-static int max_condbranch = 0;
-static int has_calls = 0;
-static int num_calls = 0;
-static int max_calls = 0;
-static int has_throw = 0;
-static int num_throw = 0;
-static int max_throw = 0;
-static int has_switch = 0;
-static int num_switch = 0;
-static int max_switch = 0;
-static int cast_sealed = 0;
-static int cast_iface = 0;
-static int total_cast = 0;
-static int nonvirt_callvirt = 0;
-static int iface_callvirt = 0;
-static int total_callvirt = 0;
-
-static void
-method_stats (MonoMethod *method) {
-       const MonoOpcode *opcode;
-       MonoMethodHeader *header;
-       MonoMethodSignature *sig;
-       const unsigned char *ip, *il_code_end;
-       guint32 i, n;
-       int local_branch = 0, local_condbranch = 0, local_throw = 0, local_calls = 0;
-       gint64 l;
-
-       if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))
-               return;
-       if (method->flags & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT))
-               return;
-
-       header = mono_method_get_header (method);
-       n = mono_method_header_get_num_clauses (header);
-       if (n)
-               has_exceptions++;
-       num_exceptions += n;
-       if (max_exceptions < n)
-               max_exceptions = n;
-       mono_method_header_get_locals (header, &n, NULL);
-       if (n)
-               has_locals++;
-       num_locals += n;
-       if (max_locals < n)
-               max_locals = n;
-
-       ip = mono_method_header_get_code (header, &n, &i);
-       il_code_end = ip + n;
-       if (max_maxstack < i)
-               max_maxstack = i;
-       num_maxstack += i;
-       if (i != 8) /* just a guess */
-               has_maxstack++;
-
-       sig = mono_method_signature (method);
-       n = sig->hasthis + sig->param_count;
-       if (max_args < n)
-               max_args = n;
-       num_args += n;
-       if (n)
-               has_args++;
-
-       has_code++;
-       if (max_code < il_code_end - ip)
-               max_code = il_code_end - ip;
-       num_code += il_code_end - ip;
-
-       while (ip < il_code_end) {
-               if (*ip == 0xfe) {
-                       ++ip;
-                       i = *ip + 256;
-               } else {
-                       i = *ip;
-               }
-
-               opcode = &mono_opcodes [i];
-
-               switch (opcode->argument) {
-               case MonoInlineNone:
-                       if (i == MONO_CEE_NOP)
-                               nop_waste++;
-                       ++ip;
-                       break;
-               case MonoInlineI:
-                       n = read32 (ip + 1);
-                       if (n >= -1 && n <= 8) {
-                               int_waste += 4;
-                               g_print ("%s %d\n", mono_opcode_name (i), n);
-                       } else if (n < 128 && n >= -128) {
-                               int_waste += 3;
-                               g_print ("%s %d\n", mono_opcode_name (i), n);
-                       }
-                       ip += 5;
-                       break;
-               case MonoInlineType:
-                       if (i == MONO_CEE_CASTCLASS || i == MONO_CEE_ISINST) {
-                               guint32 token = read32 (ip + 1);
-                               MonoClass *k = mono_class_get (method->klass->image, token);
-                               if (k && k->flags & TYPE_ATTRIBUTE_SEALED)
-                                       cast_sealed++;
-                               if (k && k->flags & TYPE_ATTRIBUTE_INTERFACE)
-                                       cast_iface++;
-                               total_cast++;
-                       }
-                       ip += 5;
-                       break;
-               case MonoInlineField:
-               case MonoInlineTok:
-               case MonoInlineString:
-               case MonoInlineSig:
-               case MonoShortInlineR:
-                       ip += 5;
-                       break;
-               case MonoInlineBrTarget:
-                       n = read32 (ip + 1);
-                       if (n < 128 && n >= -128) {
-                               branch_waste += 3;
-                               if (n < 0)
-                                       back_branch_waste += 3;
-                       }
-                       ip += 5;
-                       break;
-               case MonoInlineVar:
-                       n = read16 (ip + 1);
-                       if (n < 256) {
-                               if (n < 4) {
-                                       switch (i) {
-                                       case MONO_CEE_LDARG:
-                                       case MONO_CEE_LDLOC:
-                                       case MONO_CEE_STLOC:
-                                               var_waste += 3;
-                                               /*g_print ("%s %d\n", mono_opcode_name (i), n);*/
-                                               break;
-                                       default:
-                                               var_waste += 2;
-                                               /*g_print ("%s %d\n", mono_opcode_name (i), n);*/
-                                               break;
-                                       }
-                               } else {
-                                       var_waste += 2;
-                                       /*g_print ("%s %d\n", mono_opcode_name (i), n);*/
-                               }
-                       }
-                       ip += 3;
-                       break;
-               case MonoShortInlineVar:
-                       if ((signed char)ip [1] < 4 && (signed char)ip [1] >= 0) {
-                               switch (i) {
-                               case MONO_CEE_LDARG_S:
-                               case MONO_CEE_LDLOC_S:
-                               case MONO_CEE_STLOC_S:
-                                       var_waste++;
-                                       /*g_print ("%s %d\n", mono_opcode_name (i), (signed char)ip [1]);*/
-                                       break;
-                               default:
-                                       break;
-                               }
-                       }
-                       ip += 2;
-                       break;
-               case MonoShortInlineI:
-                       if ((signed char)ip [1] <= 8 && (signed char)ip [1] >= -1) {
-                               /*g_print ("%s %d\n", mono_opcode_name (i), (signed char)ip [1]);*/
-                               int_waste ++;
-                       }
-                       ip += 2;
-                       break;
-               case MonoShortInlineBrTarget:
-                       ip += 2;
-                       break;
-               case MonoInlineSwitch: {
-                       gint32 n;
-                       ++ip;
-                       n = read32 (ip);
-                       ip += 4;
-                       ip += 4 * n;
-                       num_switch += n;
-                       has_switch++;
-                       if (max_switch < n)
-                               max_switch = n;
-                       break;
-               }
-               case MonoInlineR:
-                       ip += 9;
-                       break;
-               case MonoInlineI8:
-                       l = read64 (ip + 1);
-                       /* should load and convert */
-                       if (l >= -1 && l <= 8) {
-                               int_waste += 7;
-                       } else if (l < 128 && l >= -128) {
-                               int_waste += 6;
-                       } else if (l <= 2147483647 && l >= (-2147483647 -1)) {
-                               int_waste += 3;
-                       }
-                       ip += 9;
-                       break;
-               case MonoInlineMethod:
-                       if (i == MONO_CEE_CALLVIRT) {
-                               MonoMethod *cm = mono_get_method (method->klass->image, read32 (ip + 1), NULL);
-                               if (cm && !(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
-                                       nonvirt_callvirt++;
-                               if (cm && (cm->klass->flags & TYPE_ATTRIBUTE_INTERFACE))
-                                       iface_callvirt++;
-                               total_callvirt++;
-                       }
-                       ip += 5;
-                       break;
-               default:
-                       g_assert_not_reached ();
-               }
-
-               switch (opcode->flow_type) {
-               case MONO_FLOW_BRANCH:
-                       local_branch++;
-                       break;
-               case MONO_FLOW_COND_BRANCH:
-                       local_condbranch++;
-                       break;
-               case MONO_FLOW_CALL:
-                       local_calls++;
-                       break;
-               case MONO_FLOW_ERROR:
-                       local_throw++;
-                       break;
-               }
-       }
-       
-       if (local_branch)
-               has_branch++;
-       if (max_branch < local_branch)
-               max_branch = local_branch;
-       num_branch += local_branch;
-
-       if (local_condbranch)
-               has_condbranch++;
-       if (max_condbranch < local_condbranch)
-               max_condbranch = local_condbranch;
-       num_condbranch += local_condbranch;
-
-       if (local_calls)
-               has_calls++;
-       if (max_calls < local_calls)
-               max_calls = local_calls;
-       num_calls += local_calls;
-
-       if (local_throw)
-               has_throw++;
-       if (max_throw < local_throw)
-               max_throw = local_throw;
-       num_throw += local_throw;
-
-       return;
-}
-
-static int num_pdepth = 0;
-static int max_pdepth = 0;
-static int num_pdepth_ovf = 0;
-static int num_ifaces = 0;
-static int *pdepth_array = NULL;
-static int pdepth_array_size = 0;
-static int pdepth_array_next = 0;
-
-static void
-type_stats (MonoClass *klass) {
-       MonoClass *parent;
-       int depth = 1;
-
-       if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
-               num_ifaces++;
-               return;
-       }
-       parent = klass->parent;
-       while (parent) {
-               depth++;
-               parent = parent->parent;
-       }
-       if (pdepth_array_next >= pdepth_array_size) {
-               pdepth_array_size *= 2;
-               if (!pdepth_array_size)
-                       pdepth_array_size = 128;
-               pdepth_array = g_realloc (pdepth_array, pdepth_array_size * sizeof (int));
-       }
-       pdepth_array [pdepth_array_next++] = depth;
-       num_pdepth += depth;
-       if (max_pdepth < depth)
-               max_pdepth = depth;
-       if (depth > MONO_DEFAULT_SUPERTABLE_SIZE) {
-               /*g_print ("overflow parent depth: %s.%s\n", klass->name_space, klass->name);*/
-               num_pdepth_ovf++;
-       }
-}
-
-static void
-stats (MonoImage *image, const char *name) {
-       int i, num_methods, num_types;
-       MonoMethod *method;
-       MonoClass *klass;
-       
-       num_methods = mono_image_get_table_rows (image, MONO_TABLE_METHOD);
-       for (i = 0; i < num_methods; ++i) {
-               method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
-               method_stats (method);
-       }
-       num_types = mono_image_get_table_rows (image, MONO_TABLE_TYPEDEF);
-       for (i = 0; i < num_types; ++i) {
-               klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | (i + 1));
-               type_stats (klass);
-       }
-
-       g_print ("Methods and code stats:\n");
-       g_print ("back branch waste: %d\n", back_branch_waste);
-       g_print ("branch waste: %d\n", branch_waste);
-       g_print ("var waste: %d\n", var_waste);
-       g_print ("int waste: %d\n", int_waste);
-       g_print ("nop waste: %d\n", nop_waste);
-       g_print ("has exceptions: %d/%d, total: %d, max: %d, mean: %f\n", has_exceptions, num_methods, num_exceptions, max_exceptions, num_exceptions/(double)has_exceptions);
-       g_print ("has locals: %d/%d, total: %d, max: %d, mean: %f\n", has_locals, num_methods, num_locals, max_locals, num_locals/(double)has_locals);
-       g_print ("has args: %d/%d, total: %d, max: %d, mean: %f\n", has_args, num_methods, num_args, max_args, num_args/(double)has_args);
-       g_print ("has maxstack: %d/%d, total: %d, max: %d, mean: %f\n", has_maxstack, num_methods, num_maxstack, max_maxstack, num_maxstack/(double)i);
-       g_print ("has code: %d/%d, total: %d, max: %d, mean: %f\n", has_code, num_methods, num_code, max_code, num_code/(double)has_code);
-       g_print ("has branch: %d/%d, total: %d, max: %d, mean: %f\n", has_branch, num_methods, num_branch, max_branch, num_branch/(double)has_branch);
-       g_print ("has condbranch: %d/%d, total: %d, max: %d, mean: %f\n", has_condbranch, num_methods, num_condbranch, max_condbranch, num_condbranch/(double)has_condbranch);
-       g_print ("has switch: %d/%d, total: %d, max: %d, mean: %f\n", has_switch, num_methods, num_switch, max_switch, num_switch/(double)has_switch);
-       g_print ("has calls: %d/%d, total: %d, max: %d, mean: %f\n", has_calls, num_methods, num_calls, max_calls, num_calls/(double)has_calls);
-       g_print ("has throw: %d/%d, total: %d, max: %d, mean: %f\n", has_throw, num_methods, num_throw, max_throw, num_throw/(double)has_throw);
-       g_print ("sealed type cast: %d/%d\n", cast_sealed, total_cast);
-       g_print ("interface type cast: %d/%d\n", cast_iface, total_cast);
-       g_print ("non virtual callvirt: %d/%d\n", nonvirt_callvirt, total_callvirt);
-       g_print ("interface callvirt: %d/%d\n", iface_callvirt, total_callvirt);
-       
-       g_print ("\nType stats:\n");
-       g_print ("interface types: %d/%d\n", num_ifaces, num_types);
-       {
-               double mean = 0;
-               double stddev = 0;
-               if (pdepth_array_next) {
-                       int i;
-                       mean = (double)num_pdepth/pdepth_array_next;
-                       for (i = 0; i < pdepth_array_next; ++i) {
-                               stddev += (pdepth_array [i] - mean) * (pdepth_array [i] - mean);
-                       }
-                       stddev = sqrt (stddev/pdepth_array_next);
-               }
-               g_print ("parent depth: max: %d, mean: %f, sttdev: %f, overflowing: %d\n", max_pdepth, mean, stddev, num_pdepth_ovf);
-       }
-}
-
-static void
-type_size_stats (MonoClass *klass)
-{
-       int code_size = 0;
-       MonoMethod *method;
-       MonoMethodHeader *header;
-       gpointer iter;
-
-       iter = NULL;
-       while ((method = mono_class_get_methods (klass, &iter))) {
-               guint32 size, maxs;
-               header = mono_method_get_header (method);
-               if (!header)
-                       continue;
-               mono_method_header_get_code (header, &size, &maxs);
-               code_size += size;
-       }
-       g_print ("%s.%s: code: %d\n", klass->name_space, klass->name, code_size);
-}
-
-static void
-size_stats (MonoImage *image, const char *name) {
-       int i, num_types;
-       MonoClass *klass;
-       
-       num_types = mono_image_get_table_rows (image, MONO_TABLE_TYPEDEF);
-       for (i = 0; i < num_types; ++i) {
-               klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | (i + 1));
-               type_size_stats (klass);
-       }
-}
-
-
-static char *
-get_signature (MonoMethod *method) {
-       GString *res;
-       static GHashTable *hash = NULL;
-       char *result;
-
-       if (!hash)
-               hash = g_hash_table_new (g_direct_hash, g_direct_equal);
-       if ((result = g_hash_table_lookup (hash, method)))
-               return result;
-
-       res = g_string_new ("");
-       if (include_namespace && *(method->klass->name_space))
-               g_string_append_printf (res, "%s.", method->klass->name_space);
-       result = mono_signature_get_desc (mono_method_signature (method), include_namespace);
-       g_string_append_printf (res, "%s:%s(%s)", method->klass->name, method->name, result);
-       g_free (result);
-       g_hash_table_insert (hash, method, res->str);
-
-       result = res->str;
-       g_string_free (res, FALSE);
-       return result;
-               
-}
-
-static void
-output_method_edge (MonoMethod *first, MonoMethod *second) {
-       char * f = get_signature (first);
-       char * s = get_signature (second);
-       
-       fprintf (output, "\t\"%s\" -> \"%s\"\n", f, s);
-}
-
-/*
- * We need to handle virtual calls is derived types.
- * We could check what types implement the method and
- * disassemble all of them: this can make the graph to explode.
- * We could try and keep track of the 'this' pointer type and
- * consider only the methods in the classes derived from that:
- * this can reduce the graph complexity somewhat (and it would 
- * be the more correct approach).
- */
-static void
-print_method (MonoMethod *method, int depth) {
-       const MonoOpcode *opcode;
-       MonoMethodHeader *header;
-       GHashTable *hash;
-       static GHashTable *visited = NULL;
-       const unsigned char *ip, *il_code_end;
-       guint32 i;
-
-       if (depth++ > max_depth)
-               return;
-       
-       if (! visited)
-               visited = g_hash_table_new (NULL, NULL);
-       
-       if (g_hash_table_lookup (visited, method))
-               return;
-       
-       g_hash_table_insert (visited, method, method);
-
-       if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))
-               return;
-       if (method->flags & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT))
-               return;
-
-       header = mono_method_get_header (method);
-       ip = mono_method_header_get_code (header, &i, NULL);
-       il_code_end = ip + i;
-
-       hash = g_hash_table_new (g_direct_hash, g_direct_equal);
-       
-       while (ip < il_code_end) {
-               if (*ip == 0xfe) {
-                       ++ip;
-                       i = *ip + 256;
-               } else {
-                       i = *ip;
-               }
-
-               opcode = &mono_opcodes [i];
-
-               switch (opcode->argument) {
-               case MonoInlineNone:
-                       ++ip;
-                       break;
-               case MonoInlineType:
-               case MonoInlineField:
-               case MonoInlineTok:
-               case MonoInlineString:
-               case MonoInlineSig:
-               case MonoShortInlineR:
-               case MonoInlineI:
-               case MonoInlineBrTarget:
-                       ip += 5;
-                       break;
-               case MonoInlineVar:
-                       ip += 3;
-                       break;
-               case MonoShortInlineVar:
-               case MonoShortInlineI:
-               case MonoShortInlineBrTarget:
-                       ip += 2;
-                       break;
-               case MonoInlineSwitch: {
-                       gint32 n;
-                       ++ip;
-                       n = read32 (ip);
-                       ip += 4;
-                       ip += 4 * n;
-                       break;
-               }
-               case MonoInlineR:
-               case MonoInlineI8:
-                       ip += 9;
-                       break;
-               case MonoInlineMethod: {
-                       guint32 token;
-                       MonoMethod *called;
-                       ip++;
-                       token = read32 (ip);
-                       ip += 4;
-                       called = mono_get_method (method->klass->image, token, NULL);
-                       if (!called)
-                               break; /* warn? */
-                       if (g_hash_table_lookup (hash, called))
-                               break;
-                       g_hash_table_insert (hash, called, called);
-                       output_method_edge (method, called);
-                       print_method (called, depth);
-                       break;
-               }
-               default:
-                       g_assert_not_reached ();
-               }
-       }
-       g_hash_table_destroy (hash);
-}
-
-static void
-method_graph (MonoImage *image, const char *name) {
-       int depth = 0;
-       MonoMethod *method = NULL;
-       
-       if (!name) {
-               guint32 token = mono_image_get_entry_point (image);
-               if (!token || !(method = mono_get_method (image, token, NULL))) {
-                       g_print ("Cannot find entry point in %s: specify an explict method name.\n", mono_image_get_filename (image));
-                       exit (1);
-               }
-       } else {
-               /* search the method */
-               MonoMethodDesc *desc;
-
-               desc = mono_method_desc_new (name, include_namespace);
-               if (!desc) {
-                       g_print ("Invalid method name %s\n", name);
-                       exit (1);
-               }
-               method = mono_method_desc_search_in_image (desc, image);
-               if (!method) {
-                       g_print ("Cannot find method %s\n", name);
-                       exit (1);
-               }
-       }
-       fprintf (output, "digraph blah {\n");
-       fprintf (output, "%s", graph_properties);
-
-       print_method (method, depth);
-       
-       fprintf (output, "}\n");
-}
-
-typedef struct MonoBasicBlock MonoBasicBlock;
-
-struct MonoBasicBlock {
-       const unsigned char* cil_code;
-       gint32 cil_length;
-       gint dfn;
-       GList *in_bb;
-       GList *out_bb;
-};
-
-static const unsigned char *debug_start;
-
-static void
-link_bblock (MonoBasicBlock *from, MonoBasicBlock* to)
-{
-       from->out_bb = g_list_prepend (from->out_bb, to);
-       to->in_bb = g_list_prepend (to->in_bb, from);
-       /*fprintf (stderr, "linking IL_%04x to IL_%04x\n", from->cil_code-debug_start, to->cil_code-debug_start);*/
-}
-
-static int
-compare_bblock (const void *a, const void *b)
-{
-       MonoBasicBlock * const *ab = a;
-       MonoBasicBlock * const *bb = b;
-
-       return (*ab)->cil_code - (*bb)->cil_code;
-}
-
-static GPtrArray*
-mono_method_find_bblocks (MonoMethodHeader *header)
-{
-       const unsigned char *ip, *end, *start;
-       const MonoOpcode *opcode;
-       guint32 i, block_end = 0;
-       GPtrArray *result = g_ptr_array_new ();
-       GHashTable *table = g_hash_table_new (g_direct_hash, g_direct_equal);
-       MonoBasicBlock *entry_bb, *end_bb, *bb, *target;
-
-       ip = mono_method_header_get_code (header, &i, NULL);
-       end = ip + i;
-       debug_start = ip;
-
-       entry_bb = g_new0 (MonoBasicBlock, 1);
-       end_bb = g_new0 (MonoBasicBlock, 1);
-       g_ptr_array_add (result, entry_bb);
-       g_ptr_array_add (result, end_bb);
-
-       bb = g_new0 (MonoBasicBlock, 1);
-       bb->cil_code = ip;
-       g_ptr_array_add (result, bb);
-       link_bblock (entry_bb, bb);
-       g_hash_table_insert (table, (char*)ip, bb);
-       block_end = TRUE;
-
-       /* handle exception code blocks... */
-       while (ip < end) {
-               start = ip;
-               if ((target = g_hash_table_lookup (table, ip)) && target != bb) {
-                       if (!block_end)
-                               link_bblock (bb, target);
-                       bb = target;
-                       block_end = FALSE;
-               }
-               if (block_end) {
-                       /*fprintf (stderr, "processing bbclok at IL_%04x\n", ip - header->code);*/
-                       if (!(bb = g_hash_table_lookup (table, ip))) {
-                               bb = g_new0 (MonoBasicBlock, 1);
-                               bb->cil_code = ip;
-                               g_ptr_array_add (result, bb);
-                               g_hash_table_insert (table, (char*)ip, bb);
-                       }
-                       block_end = FALSE;
-               }
-               if (*ip == 0xfe) {
-                       ++ip;
-                       i = *ip + 256;
-               } else {
-                       i = *ip;
-               }
-
-               opcode = &mono_opcodes [i];
-               switch (opcode->flow_type) {
-               case MONO_FLOW_RETURN:
-                       link_bblock (bb, end_bb);
-               case MONO_FLOW_ERROR:
-                       block_end = 1;
-                       break;
-               case MONO_FLOW_BRANCH: /* we handle branch when checking the argument type */
-               case MONO_FLOW_COND_BRANCH:
-               case MONO_FLOW_CALL:
-               case MONO_FLOW_NEXT:
-               case MONO_FLOW_META:
-                       break;
-               default:
-                       g_assert_not_reached ();
-               }
-               switch (opcode->argument) {
-               case MonoInlineNone:
-                       ++ip;
-                       break;
-               case MonoInlineType:
-               case MonoInlineField:
-               case MonoInlineMethod:
-               case MonoInlineTok:
-               case MonoInlineString:
-               case MonoInlineSig:
-               case MonoShortInlineR:
-               case MonoInlineI:
-                       ip += 5;
-                       break;
-               case MonoInlineVar:
-                       ip += 3;
-                       break;
-               case MonoShortInlineVar:
-               case MonoShortInlineI:
-                       ip += 2;
-                       break;
-               case MonoShortInlineBrTarget:
-               case MonoInlineBrTarget:
-                       ip++;
-                       if (opcode->argument == MonoShortInlineBrTarget) {
-                               i = (signed char)*ip;
-                               ip++;
-                       } else {
-                               i = (gint32) read32 (ip);
-                               ip += 4;
-                       }
-                       if (opcode->flow_type == MONO_FLOW_COND_BRANCH) {
-                               if (!(target = g_hash_table_lookup (table, ip))) {
-                                       target = g_new0 (MonoBasicBlock, 1);
-                                       target->cil_code = ip;
-                                       g_ptr_array_add (result, target);
-                                       g_hash_table_insert (table, (char*)ip, target);
-                               }
-                               link_bblock (bb, target);
-                       }
-                       if (!(target = g_hash_table_lookup (table, ip + i))) {
-                               target = g_new0 (MonoBasicBlock, 1);
-                               target->cil_code = ip + i;
-                               g_ptr_array_add (result, target);
-                               g_hash_table_insert (table, (char*)ip + i, target);
-                       }
-                       link_bblock (bb, target);
-                       block_end = 1;
-                       break;
-               case MonoInlineSwitch: {
-                       gint32 n;
-                       const char *itarget, *st;
-                       ++ip;
-                       n = read32 (ip);
-                       ip += 4;
-                       st = (const char*)ip + 4 * n;
-
-                       for (i = 0; i < n; i++) {
-                               itarget = st + read32 (ip);
-                               ip += 4;
-                               if (!(target = g_hash_table_lookup (table, itarget))) {
-                                       target = g_new0 (MonoBasicBlock, 1);
-                                       target->cil_code = (const guchar*)itarget;
-                                       g_ptr_array_add (result, target);
-                                       g_hash_table_insert (table, (gpointer) itarget, target);
-                               }
-                               link_bblock (bb, target);
-                       }
-                       /*
-                        * Note: the code didn't set block_end in switch.
-                        */
-                       break;
-               }
-               case MonoInlineR:
-               case MonoInlineI8:
-                       ip += 9;
-                       break;
-               default:
-                       g_assert_not_reached ();
-               }
-
-       }
-       g_hash_table_destroy (table);
-       qsort (result->pdata, result->len, sizeof (gpointer), compare_bblock);
-       /* skip entry and end */
-       bb = target = NULL;
-       for (i = 2; i < result->len; ++i) {
-               bb = (MonoBasicBlock*)g_ptr_array_index (result, i);
-               if (target)
-                       target->cil_length = bb->cil_code - target->cil_code;
-               target = bb;
-               /*fprintf (stderr, "bblock %d at IL_%04x:\n", i, bb->cil_code - header->code);*/
-       }
-       bb->cil_length = end - bb->cil_code;
-       return result;
-}
-
-static char*
-indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
-{
-       return g_strdup (" ");
-}
-
-static MonoDisHelper graph_dh = {
-       "\\l",
-       NULL,
-       "IL_%04x",
-       indenter, 
-       NULL,
-       NULL
-};
-
-static void
-df_visit (MonoBasicBlock *bb, int *dfn, const unsigned char* code)
-{
-       GList *tmp;
-       MonoBasicBlock *next;
-       
-       if (bb->dfn)
-               return;
-       ++(*dfn);
-       bb->dfn = *dfn;
-       for (tmp = bb->out_bb; tmp; tmp = tmp->next) {
-               next = tmp->data;
-               if (!next->dfn) {
-                       if (!bb->cil_code)
-                               fprintf (output, "\t\"DF entry\" -> \"IL_%04x (%d)\"\n", (unsigned int)(next->cil_code - code), *dfn + 1);
-                       else
-                               fprintf (output, "\t\"IL_%04x (%d)\" -> \"IL_%04x (%d)\"\n", (unsigned int)(bb->cil_code - code), bb->dfn, (unsigned int)(next->cil_code - code), *dfn + 1);
-                       df_visit (next, dfn, code);
-               }
-       }
-}
-
-static void
-print_method_cfg (MonoMethod *method) {
-       GPtrArray *bblocks;
-       GList *tmp;
-       MonoBasicBlock *bb, *target;
-       MonoMethodHeader *header;
-       int i, dfn;
-       char *code;
-       const unsigned char *il_code;
-
-       header = mono_method_get_header (method);
-       il_code = mono_method_header_get_code (header, NULL, NULL);
-       bblocks = mono_method_find_bblocks (header);
-       for (i = 0; i < bblocks->len; ++i) {
-               bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
-               if (i == 0)
-                       fprintf (output, "\tB%p [shape=record,label=\"entry\"]\n", bb);
-               else if (i == 1)
-                       fprintf (output, "\tB%p [shape=record,label=\"end\"]\n", bb);
-               else {
-                       code = mono_disasm_code (&graph_dh, method, bb->cil_code, bb->cil_code + bb->cil_length);
-                       fprintf (output, "\tB%p [shape=record,label=\"IL_%04x\\n%s\"]\n", bb, (unsigned int)(bb->cil_code - il_code), code);
-                       g_free (code);
-               }
-       }
-       for (i = 0; i < bblocks->len; ++i) {
-               bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
-               for (tmp = bb->out_bb; tmp; tmp = tmp->next) {
-                       target = tmp->data;
-                       fprintf (output, "\tB%p -> B%p\n", bb, target);
-               }
-       }
-#if 1
-       for (i = 0; i < bblocks->len; ++i) {
-               bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
-               bb->dfn = 0;
-       }
-       dfn = 0;
-       for (i = 0; i < bblocks->len; ++i) {
-               bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
-               df_visit (bb, &dfn, il_code);
-       }
-#endif
-}
-
-/*
- * TODO: change to create the DF tree, dominance relation etc.
- */
-static void
-method_cfg (MonoImage *image, const char *name) {
-       MonoMethod *method = NULL;
-       const static char *cfg_graph_properties = "\tnode [fontsize=8.0]\n\tedge [len=1.5,color=red]\n";
-       
-       if (!name) {
-               guint32 token = mono_image_get_entry_point (image);
-               if (!token || !(method = mono_get_method (image, token, NULL))) {
-                       g_print ("Cannot find entry point in %s: specify an explict method name.\n", mono_image_get_filename (image));
-                       exit (1);
-               }
-       } else {
-               /* search the method */
-               MonoMethodDesc *desc;
-
-               desc = mono_method_desc_new (name, include_namespace);
-               if (!desc) {
-                       g_print ("Invalid method name %s\n", name);
-                       exit (1);
-               }
-               method = mono_method_desc_search_in_image (desc, image);
-               if (!method) {
-                       g_print ("Cannot find method %s\n", name);
-                       exit (1);
-               }
-       }
-       fprintf (output, "digraph blah {\n");
-       fprintf (output, "%s", cfg_graph_properties);
-
-       print_method_cfg (method);
-       
-       fprintf (output, "}\n");
-}
-
-static void
-usage (void) {
-       printf ("monograph 0.2 Copyright (c) 2002 Ximian, Inc\n");
-       printf ("Create call graph or type hierarchy information from CIL assemblies.\n");
-       printf ("Usage: monograph [options] [assembly [typename|methodname]]\n\n");
-       printf ("Valid options are:\n");
-       printf ("\t-c|--call             output call graph instead of type hierarchy\n");
-       printf ("\t-C|--control-flow     output control flow of methodname\n");
-       printf ("\t--stats               output some statistics about the assembly\n");
-       printf ("\t--size                output some size statistics about the assembly\n");
-       printf ("\t-d|--depth num        max depth recursion (default: 6)\n");
-       printf ("\t-o|--output filename  write graph to file filename (default: stdout)\n");
-       printf ("\t-f|--fullname         include namespace in type and method names\n");
-       printf ("\t-n|--neato            invoke neato directly\n");
-       printf ("\t-v|--verbose          verbose operation\n\n");
-       printf ("The default assembly is mscorlib.dll. The default method for\n");
-       printf ("the --call and --control-flow options is the entrypoint.\n\n");
-       printf ("When the --neato option is used the output type info is taken\n");
-       printf ("from the output filename extension. You need the graphviz package\n");
-       printf ("installed to be able to use this option and build bitmap files.\n");
-       printf ("Without --neato, monograph will create .dot files, a description\n");
-       printf ("file for a graph.\n\n");
-       printf ("Sample runs:\n");
-       printf ("\tmonograph -n -o vt.png mscorlib.dll System.ValueType\n");
-       printf ("\tmonograph -n -o expr.png mcs.exe Mono.CSharp.Expression\n");
-       printf ("\tmonograph -n -o cfg.png -C mcs.exe Driver:Main\n");
-       printf ("\tmonograph -d 3 -n -o callgraph.png -c mis.exe\n");
-       exit (1);
-}
-
-enum {
-       GRAPH_TYPES,
-       GRAPH_CALL,
-       GRAPH_INTERFACE,
-       GRAPH_CONTROL_FLOW,
-       GRAPH_SIZE_STATS,
-       GRAPH_STATS
-};
-
-/*
- * TODO:
- * * virtual method calls as explained above
- * * maybe track field references
- * * track what exceptions a method could throw?
- * * for some inputs neato appears to hang or take a long time: kill it?
- * * allow passing additional command-line arguments to neato
- * * allow setting different graph/node/edge options directly
- * * option to avoid specialname methods
- * * make --neato option the default?
- * * use multiple classes/method roots?
- * * write a manpage
- * * reverse call graph: given a method what methods call it?
- */
-int
-main (int argc, char *argv[]) {
-       MonoAssembly *assembly;
-       MonoImage *image;
-       const char *cname = NULL;
-       const char *aname = NULL;
-       char *outputfile = NULL;
-       int graphtype = GRAPH_TYPES;
-       int callneato = 0;
-       int i;
-       
-       output = stdout;
-
-       for (i = 1; i < argc; ++i) {
-               if (argv [i] [0] != '-')
-                       break;
-               if (strcmp (argv [i], "--call") == 0 || strcmp (argv [i], "-c") == 0) {
-                       graphtype = GRAPH_CALL;
-               } else if (strcmp (argv [i], "--control-flow") == 0 || strcmp (argv [i], "-C") == 0) {
-                       graphtype = GRAPH_CONTROL_FLOW;
-               } else if (strcmp (argv [i], "--interface") == 0 || strcmp (argv [i], "-i") == 0) {
-                       graphtype = GRAPH_INTERFACE;
-               } else if (strcmp (argv [i], "--stats") == 0) {
-                       graphtype = GRAPH_STATS;
-               } else if (strcmp (argv [i], "--size") == 0) {
-                       graphtype = GRAPH_SIZE_STATS;
-               } else if (strcmp (argv [i], "--fullname") == 0 || strcmp (argv [i], "-f") == 0) {
-                       include_namespace = 1;
-               } else if (strcmp (argv [i], "--neato") == 0 || strcmp (argv [i], "-n") == 0) {
-                       callneato = 1;
-               } else if (strcmp (argv [i], "--verbose") == 0 || strcmp (argv [i], "-v") == 0) {
-                       verbose++;
-               } else if (strcmp (argv [i], "--output") == 0 || strcmp (argv [i], "-o") == 0) {
-                       if (i + 1 >= argc)
-                               usage ();
-                       outputfile = argv [++i];
-               } else if (strcmp (argv [i], "--depth") == 0 || strcmp (argv [i], "-d") == 0) {
-                       if (i + 1 >= argc)
-                               usage ();
-                       max_depth = atoi (argv [++i]);
-               } else {
-                       usage ();
-               }
-               
-       }
-       if (argc > i)
-               aname = argv [i];
-       if (argc > i + 1)
-               cname = argv [i + 1];
-       if (aname) {
-               mono_init_from_assembly (argv [0], aname);
-               assembly = mono_assembly_open (aname, NULL);
-       } else {
-               mono_init (argv [0]);
-               assembly = mono_image_get_assembly (mono_get_corlib ());
-       }
-       if (!cname && (graphtype == GRAPH_TYPES))
-               cname = "System.Object";
-
-       if (!assembly) {
-               g_print ("cannot open assembly %s\n", aname);
-               exit (1);
-       }
-
-       if (callneato) {
-               GString *command = g_string_new ("neato");
-               char *type = NULL;
-
-               if (outputfile) {
-                       type = strrchr (outputfile, '.');
-                       g_string_append_printf (command, " -o %s", outputfile);
-               }
-               if (type)
-                       g_string_append_printf (command, " -T%s", type + 1);
-               output = popen (command->str, "w");
-               if (!output) {
-                       g_print ("Cannot run neato: you may need to install the graphviz package.\n");
-                       exit (1);
-               }
-       } else if (outputfile) {
-               output = fopen (outputfile, "w");
-               if (!output) {
-                       g_print ("Cannot open file: %s\n", outputfile);
-                       exit (1);
-               }
-       }
-       /* if it looks like a method name, we want a callgraph. */
-       if (cname && strchr (cname, ':') && graphtype == GRAPH_TYPES)
-               graphtype = GRAPH_CALL;
-
-       image = mono_assembly_get_image (assembly);
-       switch (graphtype) {
-       case GRAPH_TYPES:
-               type_graph (image, cname);
-               break;
-       case GRAPH_CALL:
-               method_graph (image, cname);
-               break;
-       case GRAPH_INTERFACE:
-               interface_graph (image, cname);
-               break;
-       case GRAPH_CONTROL_FLOW:
-               method_cfg (image, cname);
-               break;
-       case GRAPH_STATS:
-               stats (image, cname);
-               break;
-       case GRAPH_SIZE_STATS:
-               size_stats (image, cname);
-               break;
-       default:
-               g_error ("wrong graph type");
-       }
-       
-       if (callneato) {
-               if (verbose)
-                       g_print ("waiting for neato.\n");
-               pclose (output);
-       } else if (outputfile)
-               fclose (output);
-       return 0;
-}
index bb0c96eb1d4b678aa028c6e07120c9b12947cb22..3b30bc16f83c4375cb87ec9f0ba6b6bb119870a3 100644 (file)
@@ -1,2 +1,3 @@
-SUBDIRS = locale-builder sgen
+SUBDIRS = locale-builder sgen monograph
+
 
diff --git a/tools/monograph/.gitignore b/tools/monograph/.gitignore
new file mode 100644 (file)
index 0000000..d249ec9
--- /dev/null
@@ -0,0 +1,9 @@
+/.deps
+/.libs
+/Makefile
+/Makefile.in
+/monograph
+/*.o
+/*.lo
+/*.exe
+/TAGS
diff --git a/tools/monograph/ChangeLog b/tools/monograph/ChangeLog
new file mode 100644 (file)
index 0000000..b621d83
--- /dev/null
@@ -0,0 +1,115 @@
+
+Wed Feb 24 15:56:52 CET 2010 Paolo Molaro <lupus@ximian.com>
+
+       * Makefile.am, monograph.c: update to the new API/ABI.
+
+2009-08-18  Christian Hergert  <chris@dronelabs.com>
+
+       * monograph.c: Fix printf warnings.
+
+Mon Sep 10 15:03:06 CEST 2007 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: added --size option to collect size statistics
+       per-type (best used with a pipe to sort -n -k3).
+
+2007-03-13  Jonathan Chambers  <joncham@gmail.com>
+
+       * monograph.vcproj: Move to msvc directory.
+       
+2007-03-13  Jonathan Chambers  <joncham@gmail.com>
+
+       * monograph.vcproj: Begin WIN64 port.
+       
+Fri Jan 26 12:37:14 CET 2007 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: warning fixes.
+
+Tue Mar 21 16:01:26 CET 2006 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: fixes to be able to deal with 2.0 assemblies
+       and more stats.
+
+Wed Feb 22 15:11:37 CET 2006 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: update after MonoMethodHeader changes.
+
+Tue Jan 24 18:57:46 CET 2006 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: misc fixes and parent depth stats.
+
+2005-05-26  Sebastien Pouliot  <sebastien@ximian.com>
+
+       * monograph.vcproj: Project file for monograph.
+
+2005-03-29  Sebastien Pouliot  <sebastien@ximian.com>
+
+       * monograph.c: Add mono-compiler.h header to allow/ease compilation
+       with non-GCC compilers. Fix default loading of mscorlib.dll.
+
+2005-02-09  Ben Maurer  <bmaurer@ximian.com>
+
+       * monograph.c (print_method): Don't use method->info, as this will
+       be removed soon.
+
+2005-02-03  Zoltan Varga  <vargaz@freemail.hu>
+
+       * monograph.c: Fix warnings.
+
+Mon May 24 13:36:53 CEST 2004 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: default assembly name is "mscorlib" now.
+
+2003-11-12  Jackson Harper  <jackson@ximian.com>
+
+       * monograph.c: Change default assembly name to mscorlib.dll
+       
+Thu Feb  6 02:43:23 PST 2003 Piers Haken <piersh@friskit.com>
+
+       * monograph.c: more warning cleanups
+
+Tue Jan 28 18:53:08 CET 2003 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: more stats added.
+
+Mon Oct 7 12:25:15 CEST 2002 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: added a --stats command line option to gather
+       statistics about the assembly code.
+
+2002-08-28  Dick Porter  <dick@ximian.com>
+
+       * Makefile.am: Export HOST_CC for w32 builds
+
+Fri Jul 19 14:23:46 CEST 2002 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: simple stats on opcode size.
+
+Thu Mar 28 15:18:50 CET 2002 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: some warning cleanups.
+
+Mon Mar 11 11:58:27 CET 2002 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: update --help output, Make error messages less
+       intimidating and more informative.
+
+Mon Mar 11 11:16:53 CET 2002 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: removed method signature and searching helpers
+       that are now provided in libmetadata. Added --control-flow option to
+       create a control flow graph of a method, with basic blocks etc.
+
+Wed Feb 20 17:53:59 CET 2002 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: added -i option to create a graph of the types
+       implementing an interface.
+
+Tue Feb 19 12:24:15 CET 2002 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: fix typo. Update for changes in mono_init ().
+
+Mon Feb 18 14:37:17 CET 2002 Paolo Molaro <lupus@ximian.com>
+
+       * monograph.c: First commit: program to generate call graphs
+       or type hierarchies from CIL programs.
+
diff --git a/tools/monograph/Makefile.am b/tools/monograph/Makefile.am
new file mode 100644 (file)
index 0000000..c2b1aa4
--- /dev/null
@@ -0,0 +1,60 @@
+
+if HOST_WIN32
+export HOST_CC
+endif
+
+if DISABLE_EXECUTABLES
+runtime_lib=$(top_builddir)/mono/mini/$(LIBMONO_LA) $(static_libs)
+else
+if !SHARED_MONO
+static_libs=   \
+       $(top_builddir)/mono/metadata/libmonoruntime-static.la  \
+       $(top_builddir)/mono/io-layer/libwapi.la        \
+       $(top_builddir)/mono/utils/libmonoutils.la \
+       $(GLIB_LIBS) $(LIBICONV) \
+       $(LIBGC_STATIC_LIBS)
+
+runtime_lib=$(top_builddir)/mono/mini/$(LIBMONO_LA) $(static_libs)
+else
+runtime_lib=$(top_builddir)/mono/mini/$(LIBMONO_LA)
+endif
+endif
+
+if DISABLE_EXECUTABLES
+bin_PROGRAMS =
+else
+if DISABLE_LIBRARIES
+bin_PROGRAMS =
+else
+if SUPPORT_BOEHM
+bin_PROGRAMS = monograph
+endif
+endif
+endif
+
+AM_CPPFLAGS =                          \
+       -I$(top_srcdir)                 \
+       $(GLIB_CFLAGS)
+
+monograph_LDADD = \
+       $(runtime_lib)                  \
+       $(GLIB_LIBS)                    \
+       $(LLVM_LIBS)                    \
+       $(LIBICONV)                     \
+       -lm
+
+if PLATFORM_DARWIN
+monograph_LDFLAGS=-framework CoreFoundation
+endif
+
+GRAPHS=System.Object System.Enum System.Attribute System.ValueType System.Reflection.MemberInfo
+OUT=$(GRAPHS:=.jpeg)
+
+graphs: $(OUT)
+
+%.jpeg: monograph
+       ./monograph -n -o $*.png corlib.dll $*
+       convert -geometry '480x360>' $*.png $*.jpeg
+
+EXTRA_DIST = ChangeLog
+
diff --git a/tools/monograph/monograph.c b/tools/monograph/monograph.c
new file mode 100644 (file)
index 0000000..27f1a5f
--- /dev/null
@@ -0,0 +1,1207 @@
+#include <glib.h>
+#include <string.h>
+#include <math.h>
+#include "mono/metadata/metadata-internals.h"
+#include "mono/metadata/class-internals.h"
+#include "mono/metadata/assembly.h"
+#include "mono/metadata/tokentype.h"
+#include "mono/metadata/opcodes.h"
+#include "mono/metadata/tabledefs.h"
+#include "mono/metadata/mono-endian.h"
+#include "mono/metadata/appdomain.h" /* mono_init */
+#include "mono/metadata/debug-helpers.h"
+#include "mono/utils/mono-compiler.h"
+
+static FILE *output;
+static int include_namespace = 0;
+static int max_depth = 6;
+static int verbose = 0;
+static const char *graph_properties = "\tnode [fontsize=8.0]\n\tedge [len=2,color=red]\n";
+
+#if defined(__native_client__) || defined(__native_client_codegen__)
+volatile int __nacl_thread_suspension_needed = 0;
+void __nacl_suspend_thread_if_needed() {}
+#endif
+
+static void
+output_type_edge (MonoClass *first, MonoClass *second) {
+       if (include_namespace)
+               fprintf (output, "\t\"%s.%s\" -> \"%s.%s\"\n", first->name_space, first->name, second->name_space, second->name);
+       else
+               fprintf (output, "\t\"%s\" -> \"%s\"\n", first->name, second->name);
+}
+
+static void
+print_subtypes (MonoImage *image, MonoClass *class, int depth) {
+       int i, token;
+       const MonoTableInfo *t;
+       MonoClass *child;
+
+       if (depth++ > max_depth)
+               return;
+
+       t = mono_image_get_table_info (image, MONO_TABLE_TYPEDEF);
+       
+       token = mono_metadata_token_index (class->type_token);
+       token <<= MONO_TYPEDEFORREF_BITS;
+       token |= MONO_TYPEDEFORREF_TYPEDEF;
+
+       /* use a subgraph? */
+       for (i = 0; i < mono_table_info_get_rows (t); ++i) {
+               if (token == mono_metadata_decode_row_col (t, i, MONO_TYPEDEF_EXTENDS)) {
+                       child = mono_class_get (image, MONO_TOKEN_TYPE_DEF | (i + 1));
+                       output_type_edge (class, child);
+                       print_subtypes (image, child, depth);
+               }
+       }
+}
+
+static void
+type_graph (MonoImage *image, const char* cname) {
+       MonoClass *class;
+       MonoClass *parent;
+       MonoClass *child;
+       const char *name_space;
+       char *p;
+       int depth = 0;
+
+       cname = g_strdup (cname);
+       p = strrchr (cname, '.');
+       if (p) {
+               name_space = cname;
+               *p++ = 0;
+               cname = p;
+       } else {
+               name_space = "";
+       }
+       class = mono_class_from_name (image, name_space, cname);
+       if (!class) {
+               g_print ("class %s.%s not found\n", name_space, cname);
+               exit (1);
+       }
+       fprintf (output, "digraph blah {\n");
+       fprintf (output, "%s", graph_properties);
+       child = class;
+       /* go back and print the parents for the node as well: not sure it's a good idea */
+       for (parent = class->parent; parent; parent = parent->parent) {
+               output_type_edge (parent, child);
+               child = parent;
+       }
+       print_subtypes (image, class, depth);
+       fprintf (output, "}\n");
+}
+
+static void
+interface_graph (MonoImage *image, const char* cname) {
+       MonoClass *class;
+       MonoClass *child;
+       const char *name_space;
+       char *p;
+       guint32 cols [MONO_INTERFACEIMPL_SIZE];
+       guint32 token, i, count = 0;
+       const MonoTableInfo *intf = mono_image_get_table_info (image, MONO_TABLE_INTERFACEIMPL);
+
+       cname = g_strdup (cname);
+       p = strrchr (cname, '.');
+       if (p) {
+               name_space = cname;
+               *p++ = 0;
+               cname = p;
+       } else {
+               name_space = "";
+       }
+       class = mono_class_from_name (image, name_space, cname);
+       if (!class) {
+               g_print ("interface %s.%s not found\n", name_space, cname);
+               exit (1);
+       }
+       /* chek if it's really an interface... */
+       fprintf (output, "digraph interface {\n");
+       fprintf (output, "%s", graph_properties);
+       /* TODO: handle inetrface defined in one image and class defined in another. */
+       token = mono_metadata_token_index (class->type_token);
+       token <<= MONO_TYPEDEFORREF_BITS;
+       token |= MONO_TYPEDEFORREF_TYPEDEF;
+       for (i = 0; i < mono_table_info_get_rows (intf); ++i) {
+               mono_metadata_decode_row (intf, i, cols, MONO_INTERFACEIMPL_SIZE);
+               /*g_print ("index: %d [%d implements %d]\n", index, cols [MONO_INTERFACEIMPL_CLASS], cols [MONO_INTERFACEIMPL_INTERFACE]);*/
+               if (token == cols [MONO_INTERFACEIMPL_INTERFACE]) {
+                       child = mono_class_get (image, MONO_TOKEN_TYPE_DEF | cols [MONO_INTERFACEIMPL_CLASS]);
+                       output_type_edge (class, child);
+                       count++;
+               }
+       }
+       fprintf (output, "}\n");
+       if (verbose && !count)
+               g_print ("No class implements %s.%s\n", class->name_space, class->name);
+
+}
+
+static int back_branch_waste = 0;
+static int branch_waste = 0;
+static int var_waste = 0;
+static int int_waste = 0;
+static int nop_waste = 0;
+static int has_exceptions = 0;
+static int num_exceptions = 0;
+static int max_exceptions = 0;
+static int has_locals = 0;
+static int num_locals = 0;
+static int max_locals = 0;
+static int has_args = 0;
+static int num_args = 0;
+static int max_args = 0;
+static int has_maxstack = 0;
+static int num_maxstack = 0;
+static int max_maxstack = 0;
+static int has_code = 0;
+static int num_code = 0;
+static int max_code = 0;
+static int has_branch = 0;
+static int num_branch = 0;
+static int max_branch = 0;
+static int has_condbranch = 0;
+static int num_condbranch = 0;
+static int max_condbranch = 0;
+static int has_calls = 0;
+static int num_calls = 0;
+static int max_calls = 0;
+static int has_throw = 0;
+static int num_throw = 0;
+static int max_throw = 0;
+static int has_switch = 0;
+static int num_switch = 0;
+static int max_switch = 0;
+static int cast_sealed = 0;
+static int cast_iface = 0;
+static int total_cast = 0;
+static int nonvirt_callvirt = 0;
+static int iface_callvirt = 0;
+static int total_callvirt = 0;
+
+static void
+method_stats (MonoMethod *method) {
+       const MonoOpcode *opcode;
+       MonoMethodHeader *header;
+       MonoMethodSignature *sig;
+       const unsigned char *ip, *il_code_end;
+       guint32 i, n;
+       int local_branch = 0, local_condbranch = 0, local_throw = 0, local_calls = 0;
+       gint64 l;
+
+       if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))
+               return;
+       if (method->flags & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT))
+               return;
+
+       header = mono_method_get_header (method);
+       n = mono_method_header_get_num_clauses (header);
+       if (n)
+               has_exceptions++;
+       num_exceptions += n;
+       if (max_exceptions < n)
+               max_exceptions = n;
+       mono_method_header_get_locals (header, &n, NULL);
+       if (n)
+               has_locals++;
+       num_locals += n;
+       if (max_locals < n)
+               max_locals = n;
+
+       ip = mono_method_header_get_code (header, &n, &i);
+       il_code_end = ip + n;
+       if (max_maxstack < i)
+               max_maxstack = i;
+       num_maxstack += i;
+       if (i != 8) /* just a guess */
+               has_maxstack++;
+
+       sig = mono_method_signature (method);
+       n = sig->hasthis + sig->param_count;
+       if (max_args < n)
+               max_args = n;
+       num_args += n;
+       if (n)
+               has_args++;
+
+       has_code++;
+       if (max_code < il_code_end - ip)
+               max_code = il_code_end - ip;
+       num_code += il_code_end - ip;
+
+       while (ip < il_code_end) {
+               if (*ip == 0xfe) {
+                       ++ip;
+                       i = *ip + 256;
+               } else {
+                       i = *ip;
+               }
+
+               opcode = &mono_opcodes [i];
+
+               switch (opcode->argument) {
+               case MonoInlineNone:
+                       if (i == MONO_CEE_NOP)
+                               nop_waste++;
+                       ++ip;
+                       break;
+               case MonoInlineI:
+                       n = read32 (ip + 1);
+                       if (n >= -1 && n <= 8) {
+                               int_waste += 4;
+                               g_print ("%s %d\n", mono_opcode_name (i), n);
+                       } else if (n < 128 && n >= -128) {
+                               int_waste += 3;
+                               g_print ("%s %d\n", mono_opcode_name (i), n);
+                       }
+                       ip += 5;
+                       break;
+               case MonoInlineType:
+                       if (i == MONO_CEE_CASTCLASS || i == MONO_CEE_ISINST) {
+                               guint32 token = read32 (ip + 1);
+                               MonoClass *k = mono_class_get (method->klass->image, token);
+                               if (k && k->flags & TYPE_ATTRIBUTE_SEALED)
+                                       cast_sealed++;
+                               if (k && k->flags & TYPE_ATTRIBUTE_INTERFACE)
+                                       cast_iface++;
+                               total_cast++;
+                       }
+                       ip += 5;
+                       break;
+               case MonoInlineField:
+               case MonoInlineTok:
+               case MonoInlineString:
+               case MonoInlineSig:
+               case MonoShortInlineR:
+                       ip += 5;
+                       break;
+               case MonoInlineBrTarget:
+                       n = read32 (ip + 1);
+                       if (n < 128 && n >= -128) {
+                               branch_waste += 3;
+                               if (n < 0)
+                                       back_branch_waste += 3;
+                       }
+                       ip += 5;
+                       break;
+               case MonoInlineVar:
+                       n = read16 (ip + 1);
+                       if (n < 256) {
+                               if (n < 4) {
+                                       switch (i) {
+                                       case MONO_CEE_LDARG:
+                                       case MONO_CEE_LDLOC:
+                                       case MONO_CEE_STLOC:
+                                               var_waste += 3;
+                                               /*g_print ("%s %d\n", mono_opcode_name (i), n);*/
+                                               break;
+                                       default:
+                                               var_waste += 2;
+                                               /*g_print ("%s %d\n", mono_opcode_name (i), n);*/
+                                               break;
+                                       }
+                               } else {
+                                       var_waste += 2;
+                                       /*g_print ("%s %d\n", mono_opcode_name (i), n);*/
+                               }
+                       }
+                       ip += 3;
+                       break;
+               case MonoShortInlineVar:
+                       if ((signed char)ip [1] < 4 && (signed char)ip [1] >= 0) {
+                               switch (i) {
+                               case MONO_CEE_LDARG_S:
+                               case MONO_CEE_LDLOC_S:
+                               case MONO_CEE_STLOC_S:
+                                       var_waste++;
+                                       /*g_print ("%s %d\n", mono_opcode_name (i), (signed char)ip [1]);*/
+                                       break;
+                               default:
+                                       break;
+                               }
+                       }
+                       ip += 2;
+                       break;
+               case MonoShortInlineI:
+                       if ((signed char)ip [1] <= 8 && (signed char)ip [1] >= -1) {
+                               /*g_print ("%s %d\n", mono_opcode_name (i), (signed char)ip [1]);*/
+                               int_waste ++;
+                       }
+                       ip += 2;
+                       break;
+               case MonoShortInlineBrTarget:
+                       ip += 2;
+                       break;
+               case MonoInlineSwitch: {
+                       gint32 n;
+                       ++ip;
+                       n = read32 (ip);
+                       ip += 4;
+                       ip += 4 * n;
+                       num_switch += n;
+                       has_switch++;
+                       if (max_switch < n)
+                               max_switch = n;
+                       break;
+               }
+               case MonoInlineR:
+                       ip += 9;
+                       break;
+               case MonoInlineI8:
+                       l = read64 (ip + 1);
+                       /* should load and convert */
+                       if (l >= -1 && l <= 8) {
+                               int_waste += 7;
+                       } else if (l < 128 && l >= -128) {
+                               int_waste += 6;
+                       } else if (l <= 2147483647 && l >= (-2147483647 -1)) {
+                               int_waste += 3;
+                       }
+                       ip += 9;
+                       break;
+               case MonoInlineMethod:
+                       if (i == MONO_CEE_CALLVIRT) {
+                               MonoMethod *cm = mono_get_method (method->klass->image, read32 (ip + 1), NULL);
+                               if (cm && !(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
+                                       nonvirt_callvirt++;
+                               if (cm && (cm->klass->flags & TYPE_ATTRIBUTE_INTERFACE))
+                                       iface_callvirt++;
+                               total_callvirt++;
+                       }
+                       ip += 5;
+                       break;
+               default:
+                       g_assert_not_reached ();
+               }
+
+               switch (opcode->flow_type) {
+               case MONO_FLOW_BRANCH:
+                       local_branch++;
+                       break;
+               case MONO_FLOW_COND_BRANCH:
+                       local_condbranch++;
+                       break;
+               case MONO_FLOW_CALL:
+                       local_calls++;
+                       break;
+               case MONO_FLOW_ERROR:
+                       local_throw++;
+                       break;
+               }
+       }
+       
+       if (local_branch)
+               has_branch++;
+       if (max_branch < local_branch)
+               max_branch = local_branch;
+       num_branch += local_branch;
+
+       if (local_condbranch)
+               has_condbranch++;
+       if (max_condbranch < local_condbranch)
+               max_condbranch = local_condbranch;
+       num_condbranch += local_condbranch;
+
+       if (local_calls)
+               has_calls++;
+       if (max_calls < local_calls)
+               max_calls = local_calls;
+       num_calls += local_calls;
+
+       if (local_throw)
+               has_throw++;
+       if (max_throw < local_throw)
+               max_throw = local_throw;
+       num_throw += local_throw;
+
+       return;
+}
+
+static int num_pdepth = 0;
+static int max_pdepth = 0;
+static int num_pdepth_ovf = 0;
+static int num_ifaces = 0;
+static int *pdepth_array = NULL;
+static int pdepth_array_size = 0;
+static int pdepth_array_next = 0;
+
+static void
+type_stats (MonoClass *klass) {
+       MonoClass *parent;
+       int depth = 1;
+
+       if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
+               num_ifaces++;
+               return;
+       }
+       parent = klass->parent;
+       while (parent) {
+               depth++;
+               parent = parent->parent;
+       }
+       if (pdepth_array_next >= pdepth_array_size) {
+               pdepth_array_size *= 2;
+               if (!pdepth_array_size)
+                       pdepth_array_size = 128;
+               pdepth_array = g_realloc (pdepth_array, pdepth_array_size * sizeof (int));
+       }
+       pdepth_array [pdepth_array_next++] = depth;
+       num_pdepth += depth;
+       if (max_pdepth < depth)
+               max_pdepth = depth;
+       if (depth > MONO_DEFAULT_SUPERTABLE_SIZE) {
+               /*g_print ("overflow parent depth: %s.%s\n", klass->name_space, klass->name);*/
+               num_pdepth_ovf++;
+       }
+}
+
+static void
+stats (MonoImage *image, const char *name) {
+       int i, num_methods, num_types;
+       MonoMethod *method;
+       MonoClass *klass;
+       
+       num_methods = mono_image_get_table_rows (image, MONO_TABLE_METHOD);
+       for (i = 0; i < num_methods; ++i) {
+               method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
+               method_stats (method);
+       }
+       num_types = mono_image_get_table_rows (image, MONO_TABLE_TYPEDEF);
+       for (i = 0; i < num_types; ++i) {
+               klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | (i + 1));
+               type_stats (klass);
+       }
+
+       g_print ("Methods and code stats:\n");
+       g_print ("back branch waste: %d\n", back_branch_waste);
+       g_print ("branch waste: %d\n", branch_waste);
+       g_print ("var waste: %d\n", var_waste);
+       g_print ("int waste: %d\n", int_waste);
+       g_print ("nop waste: %d\n", nop_waste);
+       g_print ("has exceptions: %d/%d, total: %d, max: %d, mean: %f\n", has_exceptions, num_methods, num_exceptions, max_exceptions, num_exceptions/(double)has_exceptions);
+       g_print ("has locals: %d/%d, total: %d, max: %d, mean: %f\n", has_locals, num_methods, num_locals, max_locals, num_locals/(double)has_locals);
+       g_print ("has args: %d/%d, total: %d, max: %d, mean: %f\n", has_args, num_methods, num_args, max_args, num_args/(double)has_args);
+       g_print ("has maxstack: %d/%d, total: %d, max: %d, mean: %f\n", has_maxstack, num_methods, num_maxstack, max_maxstack, num_maxstack/(double)i);
+       g_print ("has code: %d/%d, total: %d, max: %d, mean: %f\n", has_code, num_methods, num_code, max_code, num_code/(double)has_code);
+       g_print ("has branch: %d/%d, total: %d, max: %d, mean: %f\n", has_branch, num_methods, num_branch, max_branch, num_branch/(double)has_branch);
+       g_print ("has condbranch: %d/%d, total: %d, max: %d, mean: %f\n", has_condbranch, num_methods, num_condbranch, max_condbranch, num_condbranch/(double)has_condbranch);
+       g_print ("has switch: %d/%d, total: %d, max: %d, mean: %f\n", has_switch, num_methods, num_switch, max_switch, num_switch/(double)has_switch);
+       g_print ("has calls: %d/%d, total: %d, max: %d, mean: %f\n", has_calls, num_methods, num_calls, max_calls, num_calls/(double)has_calls);
+       g_print ("has throw: %d/%d, total: %d, max: %d, mean: %f\n", has_throw, num_methods, num_throw, max_throw, num_throw/(double)has_throw);
+       g_print ("sealed type cast: %d/%d\n", cast_sealed, total_cast);
+       g_print ("interface type cast: %d/%d\n", cast_iface, total_cast);
+       g_print ("non virtual callvirt: %d/%d\n", nonvirt_callvirt, total_callvirt);
+       g_print ("interface callvirt: %d/%d\n", iface_callvirt, total_callvirt);
+       
+       g_print ("\nType stats:\n");
+       g_print ("interface types: %d/%d\n", num_ifaces, num_types);
+       {
+               double mean = 0;
+               double stddev = 0;
+               if (pdepth_array_next) {
+                       int i;
+                       mean = (double)num_pdepth/pdepth_array_next;
+                       for (i = 0; i < pdepth_array_next; ++i) {
+                               stddev += (pdepth_array [i] - mean) * (pdepth_array [i] - mean);
+                       }
+                       stddev = sqrt (stddev/pdepth_array_next);
+               }
+               g_print ("parent depth: max: %d, mean: %f, sttdev: %f, overflowing: %d\n", max_pdepth, mean, stddev, num_pdepth_ovf);
+       }
+}
+
+static void
+type_size_stats (MonoClass *klass)
+{
+       int code_size = 0;
+       MonoMethod *method;
+       MonoMethodHeader *header;
+       gpointer iter;
+
+       iter = NULL;
+       while ((method = mono_class_get_methods (klass, &iter))) {
+               guint32 size, maxs;
+               header = mono_method_get_header (method);
+               if (!header)
+                       continue;
+               mono_method_header_get_code (header, &size, &maxs);
+               code_size += size;
+       }
+       g_print ("%s.%s: code: %d\n", klass->name_space, klass->name, code_size);
+}
+
+static void
+size_stats (MonoImage *image, const char *name) {
+       int i, num_types;
+       MonoClass *klass;
+       
+       num_types = mono_image_get_table_rows (image, MONO_TABLE_TYPEDEF);
+       for (i = 0; i < num_types; ++i) {
+               klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | (i + 1));
+               type_size_stats (klass);
+       }
+}
+
+
+static char *
+get_signature (MonoMethod *method) {
+       GString *res;
+       static GHashTable *hash = NULL;
+       char *result;
+
+       if (!hash)
+               hash = g_hash_table_new (g_direct_hash, g_direct_equal);
+       if ((result = g_hash_table_lookup (hash, method)))
+               return result;
+
+       res = g_string_new ("");
+       if (include_namespace && *(method->klass->name_space))
+               g_string_append_printf (res, "%s.", method->klass->name_space);
+       result = mono_signature_get_desc (mono_method_signature (method), include_namespace);
+       g_string_append_printf (res, "%s:%s(%s)", method->klass->name, method->name, result);
+       g_free (result);
+       g_hash_table_insert (hash, method, res->str);
+
+       result = res->str;
+       g_string_free (res, FALSE);
+       return result;
+               
+}
+
+static void
+output_method_edge (MonoMethod *first, MonoMethod *second) {
+       char * f = get_signature (first);
+       char * s = get_signature (second);
+       
+       fprintf (output, "\t\"%s\" -> \"%s\"\n", f, s);
+}
+
+/*
+ * We need to handle virtual calls is derived types.
+ * We could check what types implement the method and
+ * disassemble all of them: this can make the graph to explode.
+ * We could try and keep track of the 'this' pointer type and
+ * consider only the methods in the classes derived from that:
+ * this can reduce the graph complexity somewhat (and it would 
+ * be the more correct approach).
+ */
+static void
+print_method (MonoMethod *method, int depth) {
+       const MonoOpcode *opcode;
+       MonoMethodHeader *header;
+       GHashTable *hash;
+       static GHashTable *visited = NULL;
+       const unsigned char *ip, *il_code_end;
+       guint32 i;
+
+       if (depth++ > max_depth)
+               return;
+       
+       if (! visited)
+               visited = g_hash_table_new (NULL, NULL);
+       
+       if (g_hash_table_lookup (visited, method))
+               return;
+       
+       g_hash_table_insert (visited, method, method);
+
+       if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))
+               return;
+       if (method->flags & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT))
+               return;
+
+       header = mono_method_get_header (method);
+       ip = mono_method_header_get_code (header, &i, NULL);
+       il_code_end = ip + i;
+
+       hash = g_hash_table_new (g_direct_hash, g_direct_equal);
+       
+       while (ip < il_code_end) {
+               if (*ip == 0xfe) {
+                       ++ip;
+                       i = *ip + 256;
+               } else {
+                       i = *ip;
+               }
+
+               opcode = &mono_opcodes [i];
+
+               switch (opcode->argument) {
+               case MonoInlineNone:
+                       ++ip;
+                       break;
+               case MonoInlineType:
+               case MonoInlineField:
+               case MonoInlineTok:
+               case MonoInlineString:
+               case MonoInlineSig:
+               case MonoShortInlineR:
+               case MonoInlineI:
+               case MonoInlineBrTarget:
+                       ip += 5;
+                       break;
+               case MonoInlineVar:
+                       ip += 3;
+                       break;
+               case MonoShortInlineVar:
+               case MonoShortInlineI:
+               case MonoShortInlineBrTarget:
+                       ip += 2;
+                       break;
+               case MonoInlineSwitch: {
+                       gint32 n;
+                       ++ip;
+                       n = read32 (ip);
+                       ip += 4;
+                       ip += 4 * n;
+                       break;
+               }
+               case MonoInlineR:
+               case MonoInlineI8:
+                       ip += 9;
+                       break;
+               case MonoInlineMethod: {
+                       guint32 token;
+                       MonoMethod *called;
+                       ip++;
+                       token = read32 (ip);
+                       ip += 4;
+                       called = mono_get_method (method->klass->image, token, NULL);
+                       if (!called)
+                               break; /* warn? */
+                       if (g_hash_table_lookup (hash, called))
+                               break;
+                       g_hash_table_insert (hash, called, called);
+                       output_method_edge (method, called);
+                       print_method (called, depth);
+                       break;
+               }
+               default:
+                       g_assert_not_reached ();
+               }
+       }
+       g_hash_table_destroy (hash);
+}
+
+static void
+method_graph (MonoImage *image, const char *name) {
+       int depth = 0;
+       MonoMethod *method = NULL;
+       
+       if (!name) {
+               guint32 token = mono_image_get_entry_point (image);
+               if (!token || !(method = mono_get_method (image, token, NULL))) {
+                       g_print ("Cannot find entry point in %s: specify an explict method name.\n", mono_image_get_filename (image));
+                       exit (1);
+               }
+       } else {
+               /* search the method */
+               MonoMethodDesc *desc;
+
+               desc = mono_method_desc_new (name, include_namespace);
+               if (!desc) {
+                       g_print ("Invalid method name %s\n", name);
+                       exit (1);
+               }
+               method = mono_method_desc_search_in_image (desc, image);
+               if (!method) {
+                       g_print ("Cannot find method %s\n", name);
+                       exit (1);
+               }
+       }
+       fprintf (output, "digraph blah {\n");
+       fprintf (output, "%s", graph_properties);
+
+       print_method (method, depth);
+       
+       fprintf (output, "}\n");
+}
+
+typedef struct MonoBasicBlock MonoBasicBlock;
+
+struct MonoBasicBlock {
+       const unsigned char* cil_code;
+       gint32 cil_length;
+       gint dfn;
+       GList *in_bb;
+       GList *out_bb;
+};
+
+static const unsigned char *debug_start;
+
+static void
+link_bblock (MonoBasicBlock *from, MonoBasicBlock* to)
+{
+       from->out_bb = g_list_prepend (from->out_bb, to);
+       to->in_bb = g_list_prepend (to->in_bb, from);
+       /*fprintf (stderr, "linking IL_%04x to IL_%04x\n", from->cil_code-debug_start, to->cil_code-debug_start);*/
+}
+
+static int
+compare_bblock (const void *a, const void *b)
+{
+       MonoBasicBlock * const *ab = a;
+       MonoBasicBlock * const *bb = b;
+
+       return (*ab)->cil_code - (*bb)->cil_code;
+}
+
+static GPtrArray*
+mono_method_find_bblocks (MonoMethodHeader *header)
+{
+       const unsigned char *ip, *end, *start;
+       const MonoOpcode *opcode;
+       guint32 i, block_end = 0;
+       GPtrArray *result = g_ptr_array_new ();
+       GHashTable *table = g_hash_table_new (g_direct_hash, g_direct_equal);
+       MonoBasicBlock *entry_bb, *end_bb, *bb, *target;
+
+       ip = mono_method_header_get_code (header, &i, NULL);
+       end = ip + i;
+       debug_start = ip;
+
+       entry_bb = g_new0 (MonoBasicBlock, 1);
+       end_bb = g_new0 (MonoBasicBlock, 1);
+       g_ptr_array_add (result, entry_bb);
+       g_ptr_array_add (result, end_bb);
+
+       bb = g_new0 (MonoBasicBlock, 1);
+       bb->cil_code = ip;
+       g_ptr_array_add (result, bb);
+       link_bblock (entry_bb, bb);
+       g_hash_table_insert (table, (char*)ip, bb);
+       block_end = TRUE;
+
+       /* handle exception code blocks... */
+       while (ip < end) {
+               start = ip;
+               if ((target = g_hash_table_lookup (table, ip)) && target != bb) {
+                       if (!block_end)
+                               link_bblock (bb, target);
+                       bb = target;
+                       block_end = FALSE;
+               }
+               if (block_end) {
+                       /*fprintf (stderr, "processing bbclok at IL_%04x\n", ip - header->code);*/
+                       if (!(bb = g_hash_table_lookup (table, ip))) {
+                               bb = g_new0 (MonoBasicBlock, 1);
+                               bb->cil_code = ip;
+                               g_ptr_array_add (result, bb);
+                               g_hash_table_insert (table, (char*)ip, bb);
+                       }
+                       block_end = FALSE;
+               }
+               if (*ip == 0xfe) {
+                       ++ip;
+                       i = *ip + 256;
+               } else {
+                       i = *ip;
+               }
+
+               opcode = &mono_opcodes [i];
+               switch (opcode->flow_type) {
+               case MONO_FLOW_RETURN:
+                       link_bblock (bb, end_bb);
+               case MONO_FLOW_ERROR:
+                       block_end = 1;
+                       break;
+               case MONO_FLOW_BRANCH: /* we handle branch when checking the argument type */
+               case MONO_FLOW_COND_BRANCH:
+               case MONO_FLOW_CALL:
+               case MONO_FLOW_NEXT:
+               case MONO_FLOW_META:
+                       break;
+               default:
+                       g_assert_not_reached ();
+               }
+               switch (opcode->argument) {
+               case MonoInlineNone:
+                       ++ip;
+                       break;
+               case MonoInlineType:
+               case MonoInlineField:
+               case MonoInlineMethod:
+               case MonoInlineTok:
+               case MonoInlineString:
+               case MonoInlineSig:
+               case MonoShortInlineR:
+               case MonoInlineI:
+                       ip += 5;
+                       break;
+               case MonoInlineVar:
+                       ip += 3;
+                       break;
+               case MonoShortInlineVar:
+               case MonoShortInlineI:
+                       ip += 2;
+                       break;
+               case MonoShortInlineBrTarget:
+               case MonoInlineBrTarget:
+                       ip++;
+                       if (opcode->argument == MonoShortInlineBrTarget) {
+                               i = (signed char)*ip;
+                               ip++;
+                       } else {
+                               i = (gint32) read32 (ip);
+                               ip += 4;
+                       }
+                       if (opcode->flow_type == MONO_FLOW_COND_BRANCH) {
+                               if (!(target = g_hash_table_lookup (table, ip))) {
+                                       target = g_new0 (MonoBasicBlock, 1);
+                                       target->cil_code = ip;
+                                       g_ptr_array_add (result, target);
+                                       g_hash_table_insert (table, (char*)ip, target);
+                               }
+                               link_bblock (bb, target);
+                       }
+                       if (!(target = g_hash_table_lookup (table, ip + i))) {
+                               target = g_new0 (MonoBasicBlock, 1);
+                               target->cil_code = ip + i;
+                               g_ptr_array_add (result, target);
+                               g_hash_table_insert (table, (char*)ip + i, target);
+                       }
+                       link_bblock (bb, target);
+                       block_end = 1;
+                       break;
+               case MonoInlineSwitch: {
+                       gint32 n;
+                       const char *itarget, *st;
+                       ++ip;
+                       n = read32 (ip);
+                       ip += 4;
+                       st = (const char*)ip + 4 * n;
+
+                       for (i = 0; i < n; i++) {
+                               itarget = st + read32 (ip);
+                               ip += 4;
+                               if (!(target = g_hash_table_lookup (table, itarget))) {
+                                       target = g_new0 (MonoBasicBlock, 1);
+                                       target->cil_code = (const guchar*)itarget;
+                                       g_ptr_array_add (result, target);
+                                       g_hash_table_insert (table, (gpointer) itarget, target);
+                               }
+                               link_bblock (bb, target);
+                       }
+                       /*
+                        * Note: the code didn't set block_end in switch.
+                        */
+                       break;
+               }
+               case MonoInlineR:
+               case MonoInlineI8:
+                       ip += 9;
+                       break;
+               default:
+                       g_assert_not_reached ();
+               }
+
+       }
+       g_hash_table_destroy (table);
+       qsort (result->pdata, result->len, sizeof (gpointer), compare_bblock);
+       /* skip entry and end */
+       bb = target = NULL;
+       for (i = 2; i < result->len; ++i) {
+               bb = (MonoBasicBlock*)g_ptr_array_index (result, i);
+               if (target)
+                       target->cil_length = bb->cil_code - target->cil_code;
+               target = bb;
+               /*fprintf (stderr, "bblock %d at IL_%04x:\n", i, bb->cil_code - header->code);*/
+       }
+       bb->cil_length = end - bb->cil_code;
+       return result;
+}
+
+static char*
+indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
+{
+       return g_strdup (" ");
+}
+
+static MonoDisHelper graph_dh = {
+       "\\l",
+       NULL,
+       "IL_%04x",
+       indenter, 
+       NULL,
+       NULL
+};
+
+static void
+df_visit (MonoBasicBlock *bb, int *dfn, const unsigned char* code)
+{
+       GList *tmp;
+       MonoBasicBlock *next;
+       
+       if (bb->dfn)
+               return;
+       ++(*dfn);
+       bb->dfn = *dfn;
+       for (tmp = bb->out_bb; tmp; tmp = tmp->next) {
+               next = tmp->data;
+               if (!next->dfn) {
+                       if (!bb->cil_code)
+                               fprintf (output, "\t\"DF entry\" -> \"IL_%04x (%d)\"\n", (unsigned int)(next->cil_code - code), *dfn + 1);
+                       else
+                               fprintf (output, "\t\"IL_%04x (%d)\" -> \"IL_%04x (%d)\"\n", (unsigned int)(bb->cil_code - code), bb->dfn, (unsigned int)(next->cil_code - code), *dfn + 1);
+                       df_visit (next, dfn, code);
+               }
+       }
+}
+
+static void
+print_method_cfg (MonoMethod *method) {
+       GPtrArray *bblocks;
+       GList *tmp;
+       MonoBasicBlock *bb, *target;
+       MonoMethodHeader *header;
+       int i, dfn;
+       char *code;
+       const unsigned char *il_code;
+
+       header = mono_method_get_header (method);
+       il_code = mono_method_header_get_code (header, NULL, NULL);
+       bblocks = mono_method_find_bblocks (header);
+       for (i = 0; i < bblocks->len; ++i) {
+               bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
+               if (i == 0)
+                       fprintf (output, "\tB%p [shape=record,label=\"entry\"]\n", bb);
+               else if (i == 1)
+                       fprintf (output, "\tB%p [shape=record,label=\"end\"]\n", bb);
+               else {
+                       code = mono_disasm_code (&graph_dh, method, bb->cil_code, bb->cil_code + bb->cil_length);
+                       fprintf (output, "\tB%p [shape=record,label=\"IL_%04x\\n%s\"]\n", bb, (unsigned int)(bb->cil_code - il_code), code);
+                       g_free (code);
+               }
+       }
+       for (i = 0; i < bblocks->len; ++i) {
+               bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
+               for (tmp = bb->out_bb; tmp; tmp = tmp->next) {
+                       target = tmp->data;
+                       fprintf (output, "\tB%p -> B%p\n", bb, target);
+               }
+       }
+#if 1
+       for (i = 0; i < bblocks->len; ++i) {
+               bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
+               bb->dfn = 0;
+       }
+       dfn = 0;
+       for (i = 0; i < bblocks->len; ++i) {
+               bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
+               df_visit (bb, &dfn, il_code);
+       }
+#endif
+}
+
+/*
+ * TODO: change to create the DF tree, dominance relation etc.
+ */
+static void
+method_cfg (MonoImage *image, const char *name) {
+       MonoMethod *method = NULL;
+       const static char *cfg_graph_properties = "\tnode [fontsize=8.0]\n\tedge [len=1.5,color=red]\n";
+       
+       if (!name) {
+               guint32 token = mono_image_get_entry_point (image);
+               if (!token || !(method = mono_get_method (image, token, NULL))) {
+                       g_print ("Cannot find entry point in %s: specify an explict method name.\n", mono_image_get_filename (image));
+                       exit (1);
+               }
+       } else {
+               /* search the method */
+               MonoMethodDesc *desc;
+
+               desc = mono_method_desc_new (name, include_namespace);
+               if (!desc) {
+                       g_print ("Invalid method name %s\n", name);
+                       exit (1);
+               }
+               method = mono_method_desc_search_in_image (desc, image);
+               if (!method) {
+                       g_print ("Cannot find method %s\n", name);
+                       exit (1);
+               }
+       }
+       fprintf (output, "digraph blah {\n");
+       fprintf (output, "%s", cfg_graph_properties);
+
+       print_method_cfg (method);
+       
+       fprintf (output, "}\n");
+}
+
+static void
+usage (void) {
+       printf ("monograph 0.2 Copyright (c) 2002 Ximian, Inc\n");
+       printf ("Create call graph or type hierarchy information from CIL assemblies.\n");
+       printf ("Usage: monograph [options] [assembly [typename|methodname]]\n\n");
+       printf ("Valid options are:\n");
+       printf ("\t-c|--call             output call graph instead of type hierarchy\n");
+       printf ("\t-C|--control-flow     output control flow of methodname\n");
+       printf ("\t--stats               output some statistics about the assembly\n");
+       printf ("\t--size                output some size statistics about the assembly\n");
+       printf ("\t-d|--depth num        max depth recursion (default: 6)\n");
+       printf ("\t-o|--output filename  write graph to file filename (default: stdout)\n");
+       printf ("\t-f|--fullname         include namespace in type and method names\n");
+       printf ("\t-n|--neato            invoke neato directly\n");
+       printf ("\t-v|--verbose          verbose operation\n\n");
+       printf ("The default assembly is mscorlib.dll. The default method for\n");
+       printf ("the --call and --control-flow options is the entrypoint.\n\n");
+       printf ("When the --neato option is used the output type info is taken\n");
+       printf ("from the output filename extension. You need the graphviz package\n");
+       printf ("installed to be able to use this option and build bitmap files.\n");
+       printf ("Without --neato, monograph will create .dot files, a description\n");
+       printf ("file for a graph.\n\n");
+       printf ("Sample runs:\n");
+       printf ("\tmonograph -n -o vt.png mscorlib.dll System.ValueType\n");
+       printf ("\tmonograph -n -o expr.png mcs.exe Mono.CSharp.Expression\n");
+       printf ("\tmonograph -n -o cfg.png -C mcs.exe Driver:Main\n");
+       printf ("\tmonograph -d 3 -n -o callgraph.png -c mis.exe\n");
+       exit (1);
+}
+
+enum {
+       GRAPH_TYPES,
+       GRAPH_CALL,
+       GRAPH_INTERFACE,
+       GRAPH_CONTROL_FLOW,
+       GRAPH_SIZE_STATS,
+       GRAPH_STATS
+};
+
+/*
+ * TODO:
+ * * virtual method calls as explained above
+ * * maybe track field references
+ * * track what exceptions a method could throw?
+ * * for some inputs neato appears to hang or take a long time: kill it?
+ * * allow passing additional command-line arguments to neato
+ * * allow setting different graph/node/edge options directly
+ * * option to avoid specialname methods
+ * * make --neato option the default?
+ * * use multiple classes/method roots?
+ * * write a manpage
+ * * reverse call graph: given a method what methods call it?
+ */
+int
+main (int argc, char *argv[]) {
+       MonoAssembly *assembly;
+       MonoImage *image;
+       const char *cname = NULL;
+       const char *aname = NULL;
+       char *outputfile = NULL;
+       int graphtype = GRAPH_TYPES;
+       int callneato = 0;
+       int i;
+       
+       output = stdout;
+
+       for (i = 1; i < argc; ++i) {
+               if (argv [i] [0] != '-')
+                       break;
+               if (strcmp (argv [i], "--call") == 0 || strcmp (argv [i], "-c") == 0) {
+                       graphtype = GRAPH_CALL;
+               } else if (strcmp (argv [i], "--control-flow") == 0 || strcmp (argv [i], "-C") == 0) {
+                       graphtype = GRAPH_CONTROL_FLOW;
+               } else if (strcmp (argv [i], "--interface") == 0 || strcmp (argv [i], "-i") == 0) {
+                       graphtype = GRAPH_INTERFACE;
+               } else if (strcmp (argv [i], "--stats") == 0) {
+                       graphtype = GRAPH_STATS;
+               } else if (strcmp (argv [i], "--size") == 0) {
+                       graphtype = GRAPH_SIZE_STATS;
+               } else if (strcmp (argv [i], "--fullname") == 0 || strcmp (argv [i], "-f") == 0) {
+                       include_namespace = 1;
+               } else if (strcmp (argv [i], "--neato") == 0 || strcmp (argv [i], "-n") == 0) {
+                       callneato = 1;
+               } else if (strcmp (argv [i], "--verbose") == 0 || strcmp (argv [i], "-v") == 0) {
+                       verbose++;
+               } else if (strcmp (argv [i], "--output") == 0 || strcmp (argv [i], "-o") == 0) {
+                       if (i + 1 >= argc)
+                               usage ();
+                       outputfile = argv [++i];
+               } else if (strcmp (argv [i], "--depth") == 0 || strcmp (argv [i], "-d") == 0) {
+                       if (i + 1 >= argc)
+                               usage ();
+                       max_depth = atoi (argv [++i]);
+               } else {
+                       usage ();
+               }
+               
+       }
+       if (argc > i)
+               aname = argv [i];
+       if (argc > i + 1)
+               cname = argv [i + 1];
+       if (aname) {
+               mono_init_from_assembly (argv [0], aname);
+               assembly = mono_assembly_open (aname, NULL);
+       } else {
+               mono_init (argv [0]);
+               assembly = mono_image_get_assembly (mono_get_corlib ());
+       }
+       if (!cname && (graphtype == GRAPH_TYPES))
+               cname = "System.Object";
+
+       if (!assembly) {
+               g_print ("cannot open assembly %s\n", aname);
+               exit (1);
+       }
+
+       if (callneato) {
+               GString *command = g_string_new ("neato");
+               char *type = NULL;
+
+               if (outputfile) {
+                       type = strrchr (outputfile, '.');
+                       g_string_append_printf (command, " -o %s", outputfile);
+               }
+               if (type)
+                       g_string_append_printf (command, " -T%s", type + 1);
+               output = popen (command->str, "w");
+               if (!output) {
+                       g_print ("Cannot run neato: you may need to install the graphviz package.\n");
+                       exit (1);
+               }
+       } else if (outputfile) {
+               output = fopen (outputfile, "w");
+               if (!output) {
+                       g_print ("Cannot open file: %s\n", outputfile);
+                       exit (1);
+               }
+       }
+       /* if it looks like a method name, we want a callgraph. */
+       if (cname && strchr (cname, ':') && graphtype == GRAPH_TYPES)
+               graphtype = GRAPH_CALL;
+
+       image = mono_assembly_get_image (assembly);
+       switch (graphtype) {
+       case GRAPH_TYPES:
+               type_graph (image, cname);
+               break;
+       case GRAPH_CALL:
+               method_graph (image, cname);
+               break;
+       case GRAPH_INTERFACE:
+               interface_graph (image, cname);
+               break;
+       case GRAPH_CONTROL_FLOW:
+               method_cfg (image, cname);
+               break;
+       case GRAPH_STATS:
+               stats (image, cname);
+               break;
+       case GRAPH_SIZE_STATS:
+               size_stats (image, cname);
+               break;
+       default:
+               g_error ("wrong graph type");
+       }
+       
+       if (callneato) {
+               if (verbose)
+                       g_print ("waiting for neato.\n");
+               pclose (output);
+       } else if (outputfile)
+               fclose (output);
+       return 0;
+}