#include <glib.h>
#include <string.h>
-#include "mono/metadata/class.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/cil-coff.h" /* MonoCLIImageInfo */
#include "mono/metadata/mono-endian.h"
#include "mono/metadata/appdomain.h" /* mono_init */
+#include "mono/metadata/debug-helpers.h"
static FILE *output;
static int include_namespace = 0;
static int max_depth = 6;
static int verbose = 0;
-static char *graph_properties = "\tnode [fontsize=8.0]\n\tedge [len=2,color=red]\n";
+static const char *graph_properties = "\tnode [fontsize=8.0]\n\tedge [len=2,color=red]\n";
static void
output_type_edge (MonoClass *first, MonoClass *second) {
static void
print_subtypes (MonoImage *image, MonoClass *class, int depth) {
- int i, index;
+ int i, token;
MonoTableInfo *t;
MonoClass *child;
if (depth++ > max_depth)
return;
- t = &image->tables [MONO_TABLE_TYPEDEF];
+ t = mono_image_get_table_info (image, MONO_TABLE_TYPEDEF);
- index = mono_metadata_token_index (class->type_token);
- index <<= TYPEDEFORREF_BITS;
- index |= TYPEDEFORREF_TYPEDEF;
+ token = mono_metadata_token_index (class->type_token);
+ token <<= MONO_TYPEDEFORREF_BITS;
+ token |= MONO_TYPEDEFORREF_TYPEDEF;
/* use a subgraph? */
- for (i = 0; i < t->rows; ++i) {
- if (index == mono_metadata_decode_row_col (t, i, MONO_TYPEDEF_EXTENDS)) {
+ 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, char* cname) {
+type_graph (MonoImage *image, const char* cname) {
MonoClass *class;
MonoClass *parent;
MonoClass *child;
- char *name_space;
+ const char *name_space;
char *p;
int depth = 0;
name_space = "";
}
class = mono_class_from_name (image, name_space, cname);
- if (!class)
- g_error ("class %s.%s not found", 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;
}
static void
-get_type (GString *res, MonoType *type) {
- switch (type->type) {
- case MONO_TYPE_VOID:
- g_string_append (res, "void"); break;
- case MONO_TYPE_CHAR:
- g_string_append (res, "char"); break;
- case MONO_TYPE_BOOLEAN:
- g_string_append (res, "bool"); break;
- case MONO_TYPE_U1:
- g_string_append (res, "byte"); break;
- case MONO_TYPE_I1:
- g_string_append (res, "sbyte"); break;
- case MONO_TYPE_U2:
- g_string_append (res, "uint16"); break;
- case MONO_TYPE_I2:
- g_string_append (res, "int16"); break;
- case MONO_TYPE_U4:
- g_string_append (res, "int"); break;
- case MONO_TYPE_I4:
- g_string_append (res, "uint"); break;
- case MONO_TYPE_U8:
- g_string_append (res, "ulong"); break;
- case MONO_TYPE_I8:
- g_string_append (res, "long"); break;
- case MONO_TYPE_FNPTR: /* who cares for the exact signature? */
- g_string_append (res, "*()"); break;
- case MONO_TYPE_U:
- g_string_append (res, "intptr"); break;
- case MONO_TYPE_I:
- g_string_append (res, "uintptr"); break;
- case MONO_TYPE_R4:
- g_string_append (res, "single"); break;
- case MONO_TYPE_R8:
- g_string_append (res, "double"); break;
- case MONO_TYPE_STRING:
- g_string_append (res, "string"); break;
- case MONO_TYPE_OBJECT:
- g_string_append (res, "object"); break;
- case MONO_TYPE_PTR:
- get_type (res, type->data.type);
- g_string_append_c (res, '*');
- break;
- case MONO_TYPE_ARRAY:
- get_type (res, type->data.array->type);
- g_string_append (res, "[,]"); /* not the full array info.. */
- break;
- case MONO_TYPE_SZARRAY:
- get_type (res, type->data.type);
- g_string_append (res, "[]");
- break;
- case MONO_TYPE_CLASS:
- case MONO_TYPE_VALUETYPE: {
- MonoClass *class = type->data.klass;
- if (!class) {
- g_string_append (res, "Unknown");
+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;
+ 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 total_callvirt = 0;
+
+static void
+method_stats (MonoMethod *method) {
+ const MonoOpcode *opcode;
+ MonoMethodHeader *header;
+ const unsigned char *ip;
+ int 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);
+ if (header->num_clauses)
+ has_exceptions++;
+ num_exceptions += header->num_clauses;
+ if (max_exceptions < header->num_clauses)
+ max_exceptions = header->num_clauses;
+ if (header->num_locals)
+ has_locals++;
+ num_locals += header->num_locals;
+ if (max_locals < header->num_locals)
+ max_locals = header->num_locals;
+
+ if (max_maxstack < header->max_stack)
+ max_maxstack = header->max_stack;
+ num_maxstack += header->max_stack;
+ if (header->max_stack != 8) /* just a guess */
+ has_maxstack++;
+
+ n = method->signature->hasthis + method->signature->param_count;
+ if (max_args < n)
+ max_args = n;
+ num_args += n;
+ if (n)
+ has_args++;
+
+ has_code++;
+ if (max_code < header->code_size)
+ max_code = header->code_size;
+ num_code += header->code_size;
+
+ ip = header->code;
+
+ while (ip < (header->code + header->code_size)) {
+ 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++;
+ 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 (include_namespace && *(class->name_space))
- g_string_sprintfa (res, "%s.", class->name_space);
- g_string_sprintfa (res, "%s", class->name);
- break;
}
- default:
- 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_ifaces = 0;
+
+static void
+type_stats (MonoClass *klass) {
+ MonoClass *parent;
+ int depth = 0;
+
+ if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
+ num_ifaces++;
+ return;
+ }
+ parent = klass->parent;
+ while (parent) {
+ depth++;
+ parent = parent->parent;
+ }
+ num_pdepth += depth;
+ if (max_pdepth < depth)
+ max_pdepth = depth;
+}
+
+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);
}
- if (type->byref)
- g_string_append_c (res, '&');
+
+ 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 ("\nType stats:\n");
+ g_print ("interface types: %d/%d\n", num_ifaces, num_types);
+ g_print ("parent depth: max: %d, mean: %d\n", max_pdepth, num_pdepth/(num_types - num_ifaces));
}
static char *
GString *res;
static GHashTable *hash = NULL;
char *result;
- int i;
if (!hash)
hash = g_hash_table_new (g_direct_hash, g_direct_equal);
res = g_string_new ("");
if (include_namespace && *(method->klass->name_space))
g_string_sprintfa (res, "%s.", method->klass->name_space);
- g_string_sprintfa (res, "%s:%s(", method->klass->name, method->name);
- for (i = 0; i < method->signature->param_count; ++i) {
- if (i > 0)
- g_string_append_c (res, ',');
- get_type (res, method->signature->params [i]);
- }
- g_string_sprintfa (res, ")");
+ result = mono_signature_get_desc (method->signature, include_namespace);
+ g_string_sprintfa (res, "%s:%s(%s)", method->klass->name, method->name, result);
+ g_free (result);
g_hash_table_insert (hash, method, res->str);
result = res->str;
if (method->flags & (METHOD_ATTRIBUTE_PINVOKE_IMPL | METHOD_ATTRIBUTE_ABSTRACT))
return;
- header = ((MonoMethodNormal *)method)->header;
+ header = mono_method_get_header (method);
ip = header->code;
hash = g_hash_table_new (g_direct_hash, g_direct_equal);
}
static void
-method_graph (MonoImage *image, char *name) {
+method_graph (MonoImage *image, const char *name) {
int depth = 0;
MonoMethod *method = NULL;
if (!name) {
- method = mono_get_method (image, ((MonoCLIImageInfo*)image->image_info)->cli_cli_header.ch_entry_point, NULL);
- if (!method)
- g_error ("Cannot find entry point");
+ 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 */
- MonoTableInfo *tdef = &image->tables [MONO_TABLE_TYPEDEF];
- MonoTableInfo *methods = &image->tables [MONO_TABLE_METHOD];
- char *class_name, *class_nspace, *method_name, *use_args;
- int use_namespace, i;
-
- class_nspace = g_strdup (name);
- use_args = strchr (class_nspace, '(');
- if (use_args)
- *use_args++ = 0;
- method_name = strrchr (class_nspace, ':');
- if (!method_name)
- g_error ("Invalid method name %s", name);
- *method_name++ = 0;
- class_name = strrchr (class_nspace, '.');
- if (class_name) {
- *class_name++ = 0;
- use_namespace = 1;
+ 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;
+ int 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 = header->code;
+ end = ip + header->code_size;
+ 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 {
- class_name = class_nspace;
- use_namespace = 0;
+ 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 ();
}
- for (i = 0; i < methods->rows; ++i) {
- guint32 index = mono_metadata_decode_row_col (methods, i, MONO_METHOD_NAME);
- guint32 idx;
- const char *n = mono_metadata_string_heap (image, index);
-
- if (strcmp (n, method_name))
- continue;
- index = mono_metadata_typedef_from_method (image, i + 1);
- idx = mono_metadata_decode_row_col (tdef, index - 1, MONO_TYPEDEF_NAME);
- n = mono_metadata_string_heap (image, idx);
- if (strcmp (n, class_name))
- continue;
- if (use_namespace) {
- idx = mono_metadata_decode_row_col (tdef, index - 1, MONO_TYPEDEF_NAMESPACE);
- n = mono_metadata_string_heap (image, idx);
- if (strcmp (n, class_nspace))
- continue;
+ 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;
}
- method = mono_get_method (image, MONO_TOKEN_METHOD_DEF | (i + 1), NULL);
- if (use_args) {
- /* check the signature */
- n = get_signature (method);
- if (strcmp (n, name) == 0)
- break;
- if (verbose)
- g_print ("signature check failed: '%s' != '%s'.\n", n, name);
- method = NULL;
+ 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 = 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 = header->code + header->code_size - 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", next->cil_code - code, *dfn + 1);
+ else
+ fprintf (output, "\t\"IL_%04x (%d)\" -> \"IL_%04x (%d)\"\n", bb->cil_code - code, bb->dfn, 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;
+
+ header = mono_method_get_header (method);
+ 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, bb->cil_code - header->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, header->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);
}
- if (!method)
- g_error ("Cannot find method %s", name);
- g_free (class_nspace);
}
fprintf (output, "digraph blah {\n");
- fprintf (output, "%s", graph_properties);
+ fprintf (output, "%s", cfg_graph_properties);
- print_method (method, depth);
+ print_method_cfg (method);
fprintf (output, "}\n");
}
static void
-usage () {
- printf ("monograph 0.1 Copyright (c) 2002 Ximian, Inc\n");
+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");
+ 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-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");
- printf ("The default assembly is corlib.dll. The default method for\n");
- printf ("the --call option is the entrypoint.\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.\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 corlib.dll System.ValueType\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_STATS
+};
+
/*
* TODO:
* * virtual method calls as explained above
* * 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;
- char *cname = NULL;
- char *aname = NULL;
+ MonoImage *image;
+ const char *cname = NULL;
+ const char *aname = NULL;
char *outputfile = NULL;
- int callgraph = 0;
+ int graphtype = GRAPH_TYPES;
int callneato = 0;
int i;
if (argv [i] [0] != '-')
break;
if (strcmp (argv [i], "--call") == 0 || strcmp (argv [i], "-c") == 0) {
- callgraph = 1;
+ 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], "--fullname") == 0 || strcmp (argv [i], "-f") == 0) {
include_namespace = 1;
} else if (strcmp (argv [i], "--neato") == 0 || strcmp (argv [i], "-n") == 0) {
if (argc > i + 1)
cname = argv [i + 1];
if (!aname)
- aname = "corlib.dll";
- if (!cname && !callgraph)
+ aname = "mscorlib";
+ if (!cname && (graphtype == GRAPH_TYPES))
cname = "System.Object";
- assembly = mono_assembly_open (aname, NULL, NULL);
- if (!assembly)
- g_error ("cannot open assembly %s", aname);
+ assembly = mono_assembly_open (aname, NULL);
+ if (!assembly) {
+ g_print ("cannot open assembly %s\n", aname);
+ exit (1);
+ }
if (callneato) {
GString *command = g_string_new ("neato");
if (type)
g_string_sprintfa (command, " -T%s", type + 1);
output = popen (command->str, "w");
- if (!output)
- g_error ("Cannot run neato");
+ 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_error ("Cannot open file: %s", outputfile);
+ 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, ':'))
- callgraph = 1;
+ if (cname && strchr (cname, ':') && graphtype == GRAPH_TYPES)
+ graphtype = GRAPH_CALL;
- if (callgraph)
- method_graph (assembly->image, cname);
- else
- type_graph (assembly->image, cname);
+ 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;
+ default:
+ g_error ("wrong graph type");
+ }
+
if (callneato) {
if (verbose)
g_print ("waiting for neato.\n");
projects / mono.git / blobdiff