3 #include "mono/metadata/class-internals.h"
4 #include "mono/metadata/assembly.h"
5 #include "mono/metadata/tokentype.h"
6 #include "mono/metadata/opcodes.h"
7 #include "mono/metadata/tabledefs.h"
8 #include "mono/metadata/mono-endian.h"
9 #include "mono/metadata/appdomain.h" /* mono_init */
10 #include "mono/metadata/debug-helpers.h"
11 #include "mono/utils/mono-compiler.h"
14 static int include_namespace = 0;
15 static int max_depth = 6;
16 static int verbose = 0;
17 static const char *graph_properties = "\tnode [fontsize=8.0]\n\tedge [len=2,color=red]\n";
20 output_type_edge (MonoClass *first, MonoClass *second) {
21 if (include_namespace)
22 fprintf (output, "\t\"%s.%s\" -> \"%s.%s\"\n", first->name_space, first->name, second->name_space, second->name);
24 fprintf (output, "\t\"%s\" -> \"%s\"\n", first->name, second->name);
28 print_subtypes (MonoImage *image, MonoClass *class, int depth) {
30 const MonoTableInfo *t;
33 if (depth++ > max_depth)
36 t = mono_image_get_table_info (image, MONO_TABLE_TYPEDEF);
38 token = mono_metadata_token_index (class->type_token);
39 token <<= MONO_TYPEDEFORREF_BITS;
40 token |= MONO_TYPEDEFORREF_TYPEDEF;
43 for (i = 0; i < mono_table_info_get_rows (t); ++i) {
44 if (token == mono_metadata_decode_row_col (t, i, MONO_TYPEDEF_EXTENDS)) {
45 child = mono_class_get (image, MONO_TOKEN_TYPE_DEF | (i + 1));
46 output_type_edge (class, child);
47 print_subtypes (image, child, depth);
53 type_graph (MonoImage *image, const char* cname) {
57 const char *name_space;
61 cname = g_strdup (cname);
62 p = strrchr (cname, '.');
70 class = mono_class_from_name (image, name_space, cname);
72 g_print ("class %s.%s not found\n", name_space, cname);
75 fprintf (output, "digraph blah {\n");
76 fprintf (output, "%s", graph_properties);
78 /* go back and print the parents for the node as well: not sure it's a good idea */
79 for (parent = class->parent; parent; parent = parent->parent) {
80 output_type_edge (parent, child);
83 print_subtypes (image, class, depth);
84 fprintf (output, "}\n");
88 interface_graph (MonoImage *image, const char* cname) {
91 const char *name_space;
93 guint32 cols [MONO_INTERFACEIMPL_SIZE];
94 guint32 token, i, count = 0;
95 const MonoTableInfo *intf = mono_image_get_table_info (image, MONO_TABLE_INTERFACEIMPL);
97 cname = g_strdup (cname);
98 p = strrchr (cname, '.');
106 class = mono_class_from_name (image, name_space, cname);
108 g_print ("interface %s.%s not found\n", name_space, cname);
111 /* chek if it's really an interface... */
112 fprintf (output, "digraph interface {\n");
113 fprintf (output, "%s", graph_properties);
114 /* TODO: handle inetrface defined in one image and class defined in another. */
115 token = mono_metadata_token_index (class->type_token);
116 token <<= MONO_TYPEDEFORREF_BITS;
117 token |= MONO_TYPEDEFORREF_TYPEDEF;
118 for (i = 0; i < mono_table_info_get_rows (intf); ++i) {
119 mono_metadata_decode_row (intf, i, cols, MONO_INTERFACEIMPL_SIZE);
120 /*g_print ("index: %d [%d implements %d]\n", index, cols [MONO_INTERFACEIMPL_CLASS], cols [MONO_INTERFACEIMPL_INTERFACE]);*/
121 if (token == cols [MONO_INTERFACEIMPL_INTERFACE]) {
122 child = mono_class_get (image, MONO_TOKEN_TYPE_DEF | cols [MONO_INTERFACEIMPL_CLASS]);
123 output_type_edge (class, child);
127 fprintf (output, "}\n");
128 if (verbose && !count)
129 g_print ("No class implements %s.%s\n", class->name_space, class->name);
133 static int back_branch_waste = 0;
134 static int branch_waste = 0;
135 static int var_waste = 0;
136 static int int_waste = 0;
137 static int nop_waste = 0;
138 static int has_exceptions = 0;
139 static int num_exceptions = 0;
140 static int max_exceptions = 0;
141 static int has_locals = 0;
142 static int num_locals = 0;
143 static int max_locals = 0;
144 static int has_args = 0;
145 static int num_args = 0;
146 static int max_args = 0;
147 static int has_maxstack = 0;
148 static int num_maxstack = 0;
149 static int max_maxstack = 0;
150 static int has_code = 0;
151 static int num_code = 0;
152 static int max_code = 0;
153 static int has_branch = 0;
154 static int num_branch = 0;
155 static int max_branch = 0;
156 static int has_condbranch = 0;
157 static int num_condbranch = 0;
158 static int max_condbranch = 0;
159 static int has_calls = 0;
160 static int num_calls = 0;
161 static int max_calls = 0;
162 static int has_throw = 0;
163 static int num_throw = 0;
164 static int max_throw = 0;
165 static int has_switch = 0;
166 static int num_switch = 0;
167 static int max_switch = 0;
168 static int cast_sealed = 0;
169 static int cast_iface = 0;
170 static int total_cast = 0;
171 static int nonvirt_callvirt = 0;
172 static int total_callvirt = 0;
175 method_stats (MonoMethod *method) {
176 const MonoOpcode *opcode;
177 MonoMethodHeader *header;
178 const unsigned char *ip;
180 int local_branch = 0, local_condbranch = 0, local_throw = 0, local_calls = 0;
183 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))
185 if (method->flags & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT))
188 header = mono_method_get_header (method);
189 if (header->num_clauses)
191 num_exceptions += header->num_clauses;
192 if (max_exceptions < header->num_clauses)
193 max_exceptions = header->num_clauses;
194 if (header->num_locals)
196 num_locals += header->num_locals;
197 if (max_locals < header->num_locals)
198 max_locals = header->num_locals;
200 if (max_maxstack < header->max_stack)
201 max_maxstack = header->max_stack;
202 num_maxstack += header->max_stack;
203 if (header->max_stack != 8) /* just a guess */
206 n = method->signature->hasthis + method->signature->param_count;
214 if (max_code < header->code_size)
215 max_code = header->code_size;
216 num_code += header->code_size;
220 while (ip < (header->code + header->code_size)) {
228 opcode = &mono_opcodes [i];
230 switch (opcode->argument) {
232 if (i == MONO_CEE_NOP)
238 if (n >= -1 && n <= 8) {
240 g_print ("%s %d\n", mono_opcode_name (i), n);
241 } else if (n < 128 && n >= -128) {
243 g_print ("%s %d\n", mono_opcode_name (i), n);
248 if (i == MONO_CEE_CASTCLASS || i == MONO_CEE_ISINST) {
249 guint32 token = read32 (ip + 1);
250 MonoClass *k = mono_class_get (method->klass->image, token);
251 if (k && k->flags & TYPE_ATTRIBUTE_SEALED)
253 if (k && k->flags & TYPE_ATTRIBUTE_INTERFACE)
259 case MonoInlineField:
261 case MonoInlineString:
263 case MonoShortInlineR:
266 case MonoInlineBrTarget:
268 if (n < 128 && n >= -128) {
271 back_branch_waste += 3;
284 g_print ("%s %d\n", mono_opcode_name (i), n);
288 g_print ("%s %d\n", mono_opcode_name (i), n);
293 g_print ("%s %d\n", mono_opcode_name (i), n);
298 case MonoShortInlineVar:
299 if ((signed char)ip [1] < 4 && (signed char)ip [1] >= 0) {
301 case MONO_CEE_LDARG_S:
302 case MONO_CEE_LDLOC_S:
303 case MONO_CEE_STLOC_S:
305 g_print ("%s %d\n", mono_opcode_name (i), (signed char)ip [1]);
313 case MonoShortInlineI:
314 if ((signed char)ip [1] <= 8 && (signed char)ip [1] >= -1) {
315 g_print ("%s %d\n", mono_opcode_name (i), (signed char)ip [1]);
320 case MonoShortInlineBrTarget:
323 case MonoInlineSwitch: {
340 /* should load and convert */
341 if (l >= -1 && l <= 8) {
343 } else if (l < 128 && l >= -128) {
345 } else if (l <= 2147483647 && l >= (-2147483647 -1)) {
350 case MonoInlineMethod:
351 if (i == MONO_CEE_CALLVIRT) {
352 MonoMethod *cm = mono_get_method (method->klass->image, read32 (ip + 1), NULL);
353 if (cm && !(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
360 g_assert_not_reached ();
363 switch (opcode->flow_type) {
364 case MONO_FLOW_BRANCH:
367 case MONO_FLOW_COND_BRANCH:
373 case MONO_FLOW_ERROR:
381 if (max_branch < local_branch)
382 max_branch = local_branch;
383 num_branch += local_branch;
385 if (local_condbranch)
387 if (max_condbranch < local_condbranch)
388 max_condbranch = local_condbranch;
389 num_condbranch += local_condbranch;
393 if (max_calls < local_calls)
394 max_calls = local_calls;
395 num_calls += local_calls;
399 if (max_throw < local_throw)
400 max_throw = local_throw;
401 num_throw += local_throw;
406 static int num_pdepth = 0;
407 static int max_pdepth = 0;
408 static int num_ifaces = 0;
411 type_stats (MonoClass *klass) {
415 if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
419 parent = klass->parent;
422 parent = parent->parent;
425 if (max_pdepth < depth)
430 stats (MonoImage *image, const char *name) {
431 int i, num_methods, num_types;
435 num_methods = mono_image_get_table_rows (image, MONO_TABLE_METHOD);
436 for (i = 0; i < num_methods; ++i) {
437 method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
438 method_stats (method);
440 num_types = mono_image_get_table_rows (image, MONO_TABLE_TYPEDEF);
441 for (i = 0; i < num_types; ++i) {
442 klass = mono_class_get (image, MONO_TOKEN_TYPE_DEF | (i + 1));
446 g_print ("Methods and code stats:\n");
447 g_print ("back branch waste: %d\n", back_branch_waste);
448 g_print ("branch waste: %d\n", branch_waste);
449 g_print ("var waste: %d\n", var_waste);
450 g_print ("int waste: %d\n", int_waste);
451 g_print ("nop waste: %d\n", nop_waste);
452 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);
453 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);
454 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);
455 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);
456 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);
457 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);
458 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);
459 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);
460 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);
461 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);
462 g_print ("sealed type cast: %d/%d\n", cast_sealed, total_cast);
463 g_print ("interface type cast: %d/%d\n", cast_iface, total_cast);
464 g_print ("non virtual callvirt: %d/%d\n", nonvirt_callvirt, total_callvirt);
466 g_print ("\nType stats:\n");
467 g_print ("interface types: %d/%d\n", num_ifaces, num_types);
468 g_print ("parent depth: max: %d, mean: %d\n", max_pdepth, num_pdepth/(num_types - num_ifaces));
472 get_signature (MonoMethod *method) {
474 static GHashTable *hash = NULL;
478 hash = g_hash_table_new (g_direct_hash, g_direct_equal);
479 if ((result = g_hash_table_lookup (hash, method)))
482 res = g_string_new ("");
483 if (include_namespace && *(method->klass->name_space))
484 g_string_sprintfa (res, "%s.", method->klass->name_space);
485 result = mono_signature_get_desc (method->signature, include_namespace);
486 g_string_sprintfa (res, "%s:%s(%s)", method->klass->name, method->name, result);
488 g_hash_table_insert (hash, method, res->str);
491 g_string_free (res, FALSE);
497 output_method_edge (MonoMethod *first, MonoMethod *second) {
498 char * f = get_signature (first);
499 char * s = get_signature (second);
501 fprintf (output, "\t\"%s\" -> \"%s\"\n", f, s);
505 * We need to handle virtual calls is derived types.
506 * We could check what types implement the method and
507 * disassemble all of them: this can make the graph to explode.
508 * We could try and keep track of the 'this' pointer type and
509 * consider only the methods in the classes derived from that:
510 * this can reduce the graph complexity somewhat (and it would
511 * be the more correct approach).
514 print_method (MonoMethod *method, int depth) {
515 const MonoOpcode *opcode;
516 MonoMethodHeader *header;
518 static GHashTable *visited = NULL;
519 const unsigned char *ip;
522 if (depth++ > max_depth)
526 visited = g_hash_table_new (NULL, NULL);
528 if (g_hash_table_lookup (visited, method))
531 g_hash_table_insert (visited, method, method);
533 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME))
535 if (method->flags & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT))
538 header = mono_method_get_header (method);
541 hash = g_hash_table_new (g_direct_hash, g_direct_equal);
543 while (ip < (header->code + header->code_size)) {
551 opcode = &mono_opcodes [i];
553 switch (opcode->argument) {
558 case MonoInlineField:
560 case MonoInlineString:
562 case MonoShortInlineR:
564 case MonoInlineBrTarget:
570 case MonoShortInlineVar:
571 case MonoShortInlineI:
572 case MonoShortInlineBrTarget:
575 case MonoInlineSwitch: {
587 case MonoInlineMethod: {
593 called = mono_get_method (method->klass->image, token, NULL);
596 if (g_hash_table_lookup (hash, called))
598 g_hash_table_insert (hash, called, called);
599 output_method_edge (method, called);
600 print_method (called, depth);
604 g_assert_not_reached ();
607 g_hash_table_destroy (hash);
611 method_graph (MonoImage *image, const char *name) {
613 MonoMethod *method = NULL;
616 guint32 token = mono_image_get_entry_point (image);
617 if (!token || !(method = mono_get_method (image, token, NULL))) {
618 g_print ("Cannot find entry point in %s: specify an explict method name.\n", mono_image_get_filename (image));
622 /* search the method */
623 MonoMethodDesc *desc;
625 desc = mono_method_desc_new (name, include_namespace);
627 g_print ("Invalid method name %s\n", name);
630 method = mono_method_desc_search_in_image (desc, image);
632 g_print ("Cannot find method %s\n", name);
636 fprintf (output, "digraph blah {\n");
637 fprintf (output, "%s", graph_properties);
639 print_method (method, depth);
641 fprintf (output, "}\n");
644 typedef struct MonoBasicBlock MonoBasicBlock;
646 struct MonoBasicBlock {
647 const unsigned char* cil_code;
654 static const unsigned char *debug_start;
657 link_bblock (MonoBasicBlock *from, MonoBasicBlock* to)
659 from->out_bb = g_list_prepend (from->out_bb, to);
660 to->in_bb = g_list_prepend (to->in_bb, from);
661 /*fprintf (stderr, "linking IL_%04x to IL_%04x\n", from->cil_code-debug_start, to->cil_code-debug_start);*/
665 compare_bblock (const void *a, const void *b)
667 MonoBasicBlock * const *ab = a;
668 MonoBasicBlock * const *bb = b;
670 return (*ab)->cil_code - (*bb)->cil_code;
674 mono_method_find_bblocks (MonoMethodHeader *header)
676 const unsigned char *ip, *end, *start;
677 const MonoOpcode *opcode;
678 int i, block_end = 0;
679 GPtrArray *result = g_ptr_array_new ();
680 GHashTable *table = g_hash_table_new (g_direct_hash, g_direct_equal);
681 MonoBasicBlock *entry_bb, *end_bb, *bb, *target;
684 end = ip + header->code_size;
687 entry_bb = g_new0 (MonoBasicBlock, 1);
688 end_bb = g_new0 (MonoBasicBlock, 1);
689 g_ptr_array_add (result, entry_bb);
690 g_ptr_array_add (result, end_bb);
692 bb = g_new0 (MonoBasicBlock, 1);
694 g_ptr_array_add (result, bb);
695 link_bblock (entry_bb, bb);
696 g_hash_table_insert (table, (char*)ip, bb);
699 /* handle exception code blocks... */
702 if ((target = g_hash_table_lookup (table, ip)) && target != bb) {
704 link_bblock (bb, target);
709 /*fprintf (stderr, "processing bbclok at IL_%04x\n", ip - header->code);*/
710 if (!(bb = g_hash_table_lookup (table, ip))) {
711 bb = g_new0 (MonoBasicBlock, 1);
713 g_ptr_array_add (result, bb);
714 g_hash_table_insert (table, (char*)ip, bb);
725 opcode = &mono_opcodes [i];
726 switch (opcode->flow_type) {
727 case MONO_FLOW_RETURN:
728 link_bblock (bb, end_bb);
729 case MONO_FLOW_ERROR:
732 case MONO_FLOW_BRANCH: /* we handle branch when checking the argument type */
733 case MONO_FLOW_COND_BRANCH:
739 g_assert_not_reached ();
741 switch (opcode->argument) {
746 case MonoInlineField:
747 case MonoInlineMethod:
749 case MonoInlineString:
751 case MonoShortInlineR:
758 case MonoShortInlineVar:
759 case MonoShortInlineI:
762 case MonoShortInlineBrTarget:
763 case MonoInlineBrTarget:
765 if (opcode->argument == MonoShortInlineBrTarget) {
766 i = (signed char)*ip;
769 i = (gint32) read32 (ip);
772 if (opcode->flow_type == MONO_FLOW_COND_BRANCH) {
773 if (!(target = g_hash_table_lookup (table, ip))) {
774 target = g_new0 (MonoBasicBlock, 1);
775 target->cil_code = ip;
776 g_ptr_array_add (result, target);
777 g_hash_table_insert (table, (char*)ip, target);
779 link_bblock (bb, target);
781 if (!(target = g_hash_table_lookup (table, ip + i))) {
782 target = g_new0 (MonoBasicBlock, 1);
783 target->cil_code = ip + i;
784 g_ptr_array_add (result, target);
785 g_hash_table_insert (table, (char*)ip + i, target);
787 link_bblock (bb, target);
790 case MonoInlineSwitch: {
792 const char *itarget, *st;
796 st = (const char*)ip + 4 * n;
798 for (i = 0; i < n; i++) {
799 itarget = st + read32 (ip);
801 if (!(target = g_hash_table_lookup (table, itarget))) {
802 target = g_new0 (MonoBasicBlock, 1);
803 target->cil_code = itarget;
804 g_ptr_array_add (result, target);
805 g_hash_table_insert (table, (gpointer) itarget, target);
807 link_bblock (bb, target);
810 * Note: the code didn't set block_end in switch.
819 g_assert_not_reached ();
823 g_hash_table_destroy (table);
824 qsort (result->pdata, result->len, sizeof (gpointer), compare_bblock);
825 /* skip entry and end */
827 for (i = 2; i < result->len; ++i) {
828 bb = (MonoBasicBlock*)g_ptr_array_index (result, i);
830 target->cil_length = bb->cil_code - target->cil_code;
832 /*fprintf (stderr, "bblock %d at IL_%04x:\n", i, bb->cil_code - header->code);*/
834 bb->cil_length = header->code + header->code_size - bb->cil_code;
839 indenter (MonoDisHelper *dh, MonoMethod *method, guint32 ip_offset)
841 return g_strdup (" ");
844 static MonoDisHelper graph_dh = {
854 df_visit (MonoBasicBlock *bb, int *dfn, const unsigned char* code)
857 MonoBasicBlock *next;
863 for (tmp = bb->out_bb; tmp; tmp = tmp->next) {
867 fprintf (output, "\t\"DF entry\" -> \"IL_%04x (%d)\"\n", next->cil_code - code, *dfn + 1);
869 fprintf (output, "\t\"IL_%04x (%d)\" -> \"IL_%04x (%d)\"\n", bb->cil_code - code, bb->dfn, next->cil_code - code, *dfn + 1);
870 df_visit (next, dfn, code);
876 print_method_cfg (MonoMethod *method) {
879 MonoBasicBlock *bb, *target;
880 MonoMethodHeader *header;
884 header = mono_method_get_header (method);
885 bblocks = mono_method_find_bblocks (header);
886 for (i = 0; i < bblocks->len; ++i) {
887 bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
889 fprintf (output, "\tB%p [shape=record,label=\"entry\"]\n", bb);
891 fprintf (output, "\tB%p [shape=record,label=\"end\"]\n", bb);
893 code = mono_disasm_code (&graph_dh, method, bb->cil_code, bb->cil_code + bb->cil_length);
894 fprintf (output, "\tB%p [shape=record,label=\"IL_%04x\\n%s\"]\n", bb, bb->cil_code - header->code, code);
898 for (i = 0; i < bblocks->len; ++i) {
899 bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
900 for (tmp = bb->out_bb; tmp; tmp = tmp->next) {
902 fprintf (output, "\tB%p -> B%p\n", bb, target);
906 for (i = 0; i < bblocks->len; ++i) {
907 bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
911 for (i = 0; i < bblocks->len; ++i) {
912 bb = (MonoBasicBlock*)g_ptr_array_index (bblocks, i);
913 df_visit (bb, &dfn, header->code);
919 * TODO: change to create the DF tree, dominance relation etc.
922 method_cfg (MonoImage *image, const char *name) {
923 MonoMethod *method = NULL;
924 const static char *cfg_graph_properties = "\tnode [fontsize=8.0]\n\tedge [len=1.5,color=red]\n";
927 guint32 token = mono_image_get_entry_point (image);
928 if (!token || !(method = mono_get_method (image, token, NULL))) {
929 g_print ("Cannot find entry point in %s: specify an explict method name.\n", mono_image_get_filename (image));
933 /* search the method */
934 MonoMethodDesc *desc;
936 desc = mono_method_desc_new (name, include_namespace);
938 g_print ("Invalid method name %s\n", name);
941 method = mono_method_desc_search_in_image (desc, image);
943 g_print ("Cannot find method %s\n", name);
947 fprintf (output, "digraph blah {\n");
948 fprintf (output, "%s", cfg_graph_properties);
950 print_method_cfg (method);
952 fprintf (output, "}\n");
957 printf ("monograph 0.2 Copyright (c) 2002 Ximian, Inc\n");
958 printf ("Create call graph or type hierarchy information from CIL assemblies.\n");
959 printf ("Usage: monograph [options] [assembly [typename|methodname]]\n\n");
960 printf ("Valid options are:\n");
961 printf ("\t-c|--call output call graph instead of type hierarchy\n");
962 printf ("\t-C|--control-flow output control flow of methodname\n");
963 printf ("\t--stats output some statistics about the assembly\n");
964 printf ("\t-d|--depth num max depth recursion (default: 6)\n");
965 printf ("\t-o|--output filename write graph to file filename (default: stdout)\n");
966 printf ("\t-f|--fullname include namespace in type and method names\n");
967 printf ("\t-n|--neato invoke neato directly\n");
968 printf ("\t-v|--verbose verbose operation\n\n");
969 printf ("The default assembly is mscorlib.dll. The default method for\n");
970 printf ("the --call and --control-flow options is the entrypoint.\n\n");
971 printf ("When the --neato option is used the output type info is taken\n");
972 printf ("from the output filename extension. You need the graphviz package\n");
973 printf ("installed to be able to use this option and build bitmap files.\n");
974 printf ("Without --neato, monograph will create .dot files, a description\n");
975 printf ("file for a graph.\n\n");
976 printf ("Sample runs:\n");
977 printf ("\tmonograph -n -o vt.png mscorlib.dll System.ValueType\n");
978 printf ("\tmonograph -n -o expr.png mcs.exe Mono.CSharp.Expression\n");
979 printf ("\tmonograph -n -o cfg.png -C mcs.exe Driver:Main\n");
980 printf ("\tmonograph -d 3 -n -o callgraph.png -c mis.exe\n");
994 * * virtual method calls as explained above
995 * * maybe track field references
996 * * track what exceptions a method could throw?
997 * * for some inputs neato appears to hang or take a long time: kill it?
998 * * allow passing additional command-line arguments to neato
999 * * allow setting different graph/node/edge options directly
1000 * * option to avoid specialname methods
1001 * * make --neato option the default?
1002 * * use multiple classes/method roots?
1004 * * reverse call graph: given a method what methods call it?
1007 main (int argc, char *argv[]) {
1008 MonoAssembly *assembly;
1010 const char *cname = NULL;
1011 const char *aname = NULL;
1012 char *outputfile = NULL;
1013 int graphtype = GRAPH_TYPES;
1017 mono_init (argv [0]);
1020 for (i = 1; i < argc; ++i) {
1021 if (argv [i] [0] != '-')
1023 if (strcmp (argv [i], "--call") == 0 || strcmp (argv [i], "-c") == 0) {
1024 graphtype = GRAPH_CALL;
1025 } else if (strcmp (argv [i], "--control-flow") == 0 || strcmp (argv [i], "-C") == 0) {
1026 graphtype = GRAPH_CONTROL_FLOW;
1027 } else if (strcmp (argv [i], "--interface") == 0 || strcmp (argv [i], "-i") == 0) {
1028 graphtype = GRAPH_INTERFACE;
1029 } else if (strcmp (argv [i], "--stats") == 0) {
1030 graphtype = GRAPH_STATS;
1031 } else if (strcmp (argv [i], "--fullname") == 0 || strcmp (argv [i], "-f") == 0) {
1032 include_namespace = 1;
1033 } else if (strcmp (argv [i], "--neato") == 0 || strcmp (argv [i], "-n") == 0) {
1035 } else if (strcmp (argv [i], "--verbose") == 0 || strcmp (argv [i], "-v") == 0) {
1037 } else if (strcmp (argv [i], "--output") == 0 || strcmp (argv [i], "-o") == 0) {
1040 outputfile = argv [++i];
1041 } else if (strcmp (argv [i], "--depth") == 0 || strcmp (argv [i], "-d") == 0) {
1044 max_depth = atoi (argv [++i]);
1053 cname = argv [i + 1];
1055 assembly = mono_assembly_open (aname, NULL);
1057 assembly = mono_image_get_assembly (mono_get_corlib ());
1059 if (!cname && (graphtype == GRAPH_TYPES))
1060 cname = "System.Object";
1063 g_print ("cannot open assembly %s\n", aname);
1068 GString *command = g_string_new ("neato");
1072 type = strrchr (outputfile, '.');
1073 g_string_sprintfa (command, " -o %s", outputfile);
1076 g_string_sprintfa (command, " -T%s", type + 1);
1077 output = popen (command->str, "w");
1079 g_print ("Cannot run neato: you may need to install the graphviz package.\n");
1082 } else if (outputfile) {
1083 output = fopen (outputfile, "w");
1085 g_print ("Cannot open file: %s\n", outputfile);
1089 /* if it looks like a method name, we want a callgraph. */
1090 if (cname && strchr (cname, ':') && graphtype == GRAPH_TYPES)
1091 graphtype = GRAPH_CALL;
1093 image = mono_assembly_get_image (assembly);
1094 switch (graphtype) {
1096 type_graph (image, cname);
1099 method_graph (image, cname);
1101 case GRAPH_INTERFACE:
1102 interface_graph (image, cname);
1104 case GRAPH_CONTROL_FLOW:
1105 method_cfg (image, cname);
1108 stats (image, cname);
1111 g_error ("wrong graph type");
1116 g_print ("waiting for neato.\n");
1118 } else if (outputfile)