2 * mono-profiler-aot.c: Ahead of Time Compiler Profiler for Mono.
5 * Copyright 2008-2009 Novell, Inc (http://www.novell.com)
7 * This profiler collects profiling information usable by the Mono AOT compiler
8 * to generate better code. It saves the information into files under ~/.mono.
9 * The AOT compiler can load these files during compilation.
10 * Currently, only the order in which methods were compiled is saved,
11 * allowing more efficient function ordering in the AOT files.
12 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
16 #include <mono/metadata/profiler.h>
17 #include <mono/metadata/tokentype.h>
18 #include <mono/metadata/tabledefs.h>
19 #include <mono/metadata/debug-helpers.h>
20 #include <mono/metadata/assembly.h>
31 struct _MonoProfiler {
39 typedef struct ForeachData {
47 foreach_method (gpointer data, gpointer user_data)
49 ForeachData *udata = (ForeachData*)user_data;
50 MonoMethod *method = (MonoMethod*)data;
53 if (!mono_method_get_token (method) || mono_class_get_image (mono_method_get_class (method)) != udata->image)
56 name = mono_method_full_name (method, TRUE);
57 fprintf (udata->outfile, "%s\n", name);
62 output_image (gpointer key, gpointer value, gpointer user_data)
64 MonoImage *image = (MonoImage*)key;
65 PerImageData *image_data = (PerImageData*)value;
66 MonoProfiler *prof = (MonoProfiler*)user_data;
67 char *tmp, *outfile_name;
72 tmp = g_strdup_printf ("%s/.mono/aot-profile-data", g_get_home_dir ());
74 if (!g_file_test (tmp, G_FILE_TEST_IS_DIR)) {
78 err = mkdir (tmp, 0777);
81 fprintf (stderr, "mono-profiler-aot: Unable to create output directory '%s': %s\n", tmp, g_strerror (errno));
88 outfile_name = g_strdup_printf ("%s/%s-%d", tmp, mono_image_get_name (image), i);
90 if (!g_file_test (outfile_name, G_FILE_TEST_IS_REGULAR))
96 printf ("Creating output file: %s\n", outfile_name);
98 outfile = fopen (outfile_name, "w+");
101 fprintf (outfile, "#VER:%d\n", 2);
104 data.outfile = outfile;
107 g_list_foreach (image_data->methods, foreach_method, &data);
110 /* called at the end of the program */
112 prof_shutdown (MonoProfiler *prof)
114 g_hash_table_foreach (prof->images, output_image, prof);
118 prof_jit_enter (MonoProfiler *prof, MonoMethod *method)
123 prof_jit_leave (MonoProfiler *prof, MonoMethod *method, int result)
125 MonoImage *image = mono_class_get_image (mono_method_get_class (method));
128 data = (PerImageData *)g_hash_table_lookup (prof->images, image);
130 data = g_new0 (PerImageData, 1);
131 g_hash_table_insert (prof->images, image, data);
134 data->methods = g_list_append (data->methods, method);
138 mono_profiler_startup (const char *desc);
140 /* the entry point */
142 mono_profiler_startup (const char *desc)
146 prof = g_new0 (MonoProfiler, 1);
147 prof->images = g_hash_table_new (NULL, NULL);
149 mono_profiler_install (prof, prof_shutdown);
151 mono_profiler_install_jit_compile (prof_jit_enter, prof_jit_leave);
153 mono_profiler_set_events (MONO_PROFILE_JIT_COMPILATION);