diff --git a/ext/Makefile b/ext/Makefile
deleted file mode 100644
index 6c52c90..0000000
--- a/ext/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-all: libAttach.so
-
-libAttach.so: libAttach.o
-	gcc -shared -o libAttach.so libAttach.o
-
-libAttach.o: attach.c
-	gcc -Wall -g -fPIC -c -I/home/equi/.rvm/rubies/ruby-2.3.1/include/ruby-2.3.0 -I/home/equi/.rvm/rubies/ruby-2.3.1/include/ruby-2.3.0/x86_64-linux/ attach.c -o libAttach.o
-
-clean:
-	rm libAttach.*
diff --git a/ext/attach.c b/ext/attach.c
deleted file mode 100644
index d4d4dbe..0000000
--- a/ext/attach.c
+++ /dev/null
@@ -1,29 +0,0 @@
-#include "attach.h"
-
-static void
-__func_to_set_breakpoint_at()
-{
-}
-
-static void
-__catch_line_event(rb_event_flag_t evflag, VALUE data, VALUE self, ID mid, VALUE klass)
-{
-    (void)sizeof(evflag);
-    (void)sizeof(self);
-    (void)sizeof(mid);
-    (void)sizeof(klass);
-
-    rb_remove_event_hook(__catch_line_event);
-    if (rb_during_gc())
-        return;
-    __func_to_set_breakpoint_at();
-}
-
-int
-start_attach()
-{
-    if (rb_during_gc())
-        return 1;
-    rb_add_event_hook(__catch_line_event, RUBY_EVENT_LINE, (VALUE) NULL);
-    return 0;
-}
diff --git a/ext/attach.h b/ext/attach.h
deleted file mode 100644
index 9c98192..0000000
--- a/ext/attach.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef __ATTACH_H__
-#define __ATTACH_H__
-
-#include <ruby.h>
-#include <ruby/debug.h>
-
-int start_attach();
-
-#endif //__ATTACH_H__
\ No newline at end of file
diff --git a/lib/ruby-debug-ide/attach/gdb.rb b/lib/ruby-debug-ide/attach/gdb.rb
index a507880..bf9085c 100644
--- a/lib/ruby-debug-ide/attach/gdb.rb
+++ b/lib/ruby-debug-ide/attach/gdb.rb
@@ -37,11 +37,15 @@ def switch_to_thread(thread_num)
     execute "thread #{thread_num}"
   end
 
+  def set_break(str)
+    execute "tbreak #{str}"
+  end
+
   def call_start_attach
     super()
     execute "call dlopen(\"#{@path_to_attach}\", 2)"
-    execute 'call start_attach()'
-    set_tbreak(@tbreak)
+    execute 'call debase_start_attach()'
+    set_break(@tbreak)
   end
 
   def print_delimiter
diff --git a/lib/ruby-debug-ide/attach/lldb.rb b/lib/ruby-debug-ide/attach/lldb.rb
index 87245df..b9bdc31 100644
--- a/lib/ruby-debug-ide/attach/lldb.rb
+++ b/lib/ruby-debug-ide/attach/lldb.rb
@@ -35,11 +35,15 @@ def switch_to_thread(thread_num)
     execute "thread select #{thread_num}"
   end
 
+  def set_break(str)
+    execute "breakpoint set --shlib #{@path_to_attach} --name #{str}"
+  end
+
   def call_start_attach
     super()
     execute "expr (void *) dlopen(\"#{@path_to_attach}\", 2)"
-    execute 'expr (int) start_attach()'
-    set_tbreak(@tbreak)
+    execute 'expr (int) debase_start_attach()'
+    set_break(@tbreak)
   end
 
   def print_delimiter
@@ -51,7 +55,7 @@ def check_delimiter(line)
   end
 
   def load_debugger
-    execute "expr (VALUE) #{@eval_string}"
+    execute "expr (void) #{@eval_string}"
   end
 
   def to_s
diff --git a/lib/ruby-debug-ide/attach/native_debugger.rb b/lib/ruby-debug-ide/attach/native_debugger.rb
index d48ed1e..87eebc9 100644
--- a/lib/ruby-debug-ide/attach/native_debugger.rb
+++ b/lib/ruby-debug-ide/attach/native_debugger.rb
@@ -21,7 +21,7 @@ def initialize(executable, pid, flags, gems_to_include, debugger_loader_path, ar
     @debugger_loader_path = debugger_loader_path
     @argv = argv
 
-    @eval_string = "rb_eval_string_protect(\"require '#{@debugger_loader_path}'; load_debugger(#{@gems_to_include.gsub("\"", "'")}, #{@argv.gsub("\"", "'")})\", (int *)0)"
+    @eval_string = "debase_rb_eval(\"require '#{@debugger_loader_path}'; load_debugger(#{@gems_to_include.gsub("\"", "'")}, #{@argv.gsub("\"", "'")})\", (int *)0)"
 
     launch_string = "#{self} #{executable} #{flags}"
     @pipe = IO.popen(launch_string, 'r+')
@@ -30,7 +30,7 @@ def initialize(executable, pid, flags, gems_to_include, debugger_loader_path, ar
 
   def find_attach_lib(debase_path)
     attach_lib = debase_path + '/attach'
-    known_extensions = %w(.so .bundle .dll)
+    known_extensions = %w(.so .bundle .dll .dylib)
     known_extensions.each do |ext|
       if File.file?(attach_lib + ext)
         return attach_lib + ext
@@ -60,8 +60,8 @@ def get_response
     content = ''
     loop do
       line = @pipe.readline
-      break if check_delimiter(line)
       DebugPrinter.print_debug('respond line: ' + line)
+      break if check_delimiter(line)
       next if line =~ /\(lldb\)/ # lldb repeats your input to its output
       content += line
     end
@@ -89,8 +89,8 @@ def switch_to_thread
 
   end
 
-  def set_tbreak(str)
-    execute "tbreak #{str}"
+  def set_break(str)
+
   end
 
   def continue
@@ -98,6 +98,7 @@ def continue
     @pipe.puts 'c'
     loop do
       line = @pipe.readline
+      DebugPrinter.print_debug('respond line: ' + line)
       break if line =~ /#{Regexp.escape(@tbreak)}/
     end
     get_response