diff --git a/Makefile.in b/Makefile.in
index a01faae..ff05dae 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -297,6 +297,10 @@ enc/unicode/name2ctype.h: enc/unicode/name2ctype.kwd
 	@$(ECHO) preprocessing $<
 	$(Q) $(CPP) $(XCFLAGS) $(CPPFLAGS) $(COUTFLAG)$@ -E $< > $@
 
+probes.h:
+	@$(ECHO) translating probes $<
+	dtrace -o $@ -h -s probes.d
+
 clean-local::
 	$(Q)$(RM) ext/extinit.c ext/extinit.$(OBJEXT) ext/ripper/y.output
 	-$(Q)$(RM) $(pkgconfig_DATA)
diff --git a/array.c b/array.c
index 82ae7ef..5c7cc7e 100644
--- a/array.c
+++ b/array.c
@@ -15,6 +15,7 @@
 #include "ruby/util.h"
 #include "ruby/st.h"
 #include "ruby/encoding.h"
+#include "probes.h"
 #include "internal.h"
 
 #ifndef ARRAY_DEBUG
@@ -303,6 +304,10 @@ ary_alloc(VALUE klass)
     FL_SET_EMBED((VALUE)ary);
     ARY_SET_EMBED_LEN((VALUE)ary, 0);
 
+    if(RUBY_ARRAY_ALLOC_ENABLED()) {
+	RUBY_ARRAY_ALLOC(rb_sourcefile(), rb_sourceline());
+    }
+
     return (VALUE)ary;
 }
 
diff --git a/gc.c b/gc.c
index d5b8dfd..2c0c37f 100644
--- a/gc.c
+++ b/gc.c
@@ -21,6 +21,7 @@
 #include "internal.h"
 #include "gc.h"
 #include "constant.h"
+#include "probes.h"
 #include <stdio.h>
 #include <setjmp.h>
 #include <sys/types.h>
@@ -1167,6 +1168,8 @@ rb_newobj(void)
 	}
     }
 
+    if(RUBY_OBJECT_ALLOC_ENABLED()) RUBY_OBJECT_ALLOC();
+
     obj = (VALUE)freelist;
     freelist = freelist->as.free.next;
 
diff --git a/hash.c b/hash.c
index b49aff8..c40d94d 100644
--- a/hash.c
+++ b/hash.c
@@ -15,6 +15,7 @@
 #include "ruby/st.h"
 #include "ruby/util.h"
 #include "ruby/encoding.h"
+#include "probes.h"
 #include <errno.h>
 
 #ifdef __APPLE__
@@ -221,6 +222,9 @@ hash_alloc(VALUE klass)
     OBJSETUP(hash, klass, T_HASH);
 
     RHASH_IFNONE(hash) = Qnil;
+    if(RUBY_HASH_ALLOC_ENABLED()) {
+	RUBY_HASH_ALLOC(rb_sourcefile(), rb_sourceline());
+    }
 
     return (VALUE)hash;
 }
diff --git a/string.c b/string.c
index 9a85f81..a42c3c2 100644
--- a/string.c
+++ b/string.c
@@ -15,6 +15,7 @@
 #include "ruby/re.h"
 #include "ruby/encoding.h"
 #include "internal.h"
+#include "probes.h"
 #include <assert.h>
 
 #define BEG(no) (regs->beg[(no)])
@@ -377,6 +378,10 @@ str_alloc(VALUE klass)
     str->as.heap.len = 0;
     str->as.heap.aux.capa = 0;
 
+    if(RUBY_STRING_ALLOC_ENABLED()) {
+	RUBY_STRING_ALLOC(rb_sourcefile(), rb_sourceline());
+    }
+
     return (VALUE)str;
 }
 
diff --git a/vm_eval.c b/vm_eval.c
index 7df7f5f..2fd2b94 100644
--- a/vm_eval.c
+++ b/vm_eval.c
@@ -11,6 +11,8 @@
 
 **********************************************************************/
 
+#include "probes.h"
+
 static inline VALUE method_missing(VALUE obj, ID id, int argc, const VALUE *argv, int call_status);
 static inline VALUE rb_vm_set_finish_env(rb_thread_t * th);
 static inline VALUE vm_yield_with_cref(rb_thread_t *th, int argc, const VALUE *argv, const NODE *cref);
@@ -224,6 +226,14 @@ static inline VALUE
 rb_call0(VALUE recv, ID mid, int argc, const VALUE *argv,
 	 call_type scope, VALUE self)
 {
+    if(RUBY_FUNCTION_ENTRY_ENABLED()) {
+	RUBY_FUNCTION_ENTRY(
+		rb_obj_classname(recv),
+		rb_id2name(mid),
+		argc,
+		rb_sourcefile(),
+		rb_sourceline());
+    }
     rb_method_entry_t *me = rb_search_method_entry(recv, mid);
     rb_thread_t *th = GET_THREAD();
     int call_status = rb_method_call_status(th, me, scope, self);