leaked-globals: check leaked symbols in libruby.so if enable-shared

cygwin/GNUmakefile.in

@@ -41,6 +41,7 @@ SOLIBS := $(DLL_BASE_NAME).res.$(OBJEXT) $(SOLIBS)
 override EXTOBJS += $(if $(filter-out $(RUBYW_INSTALL_NAME),$(@:$(EXEEXT)=)),$(RUBY_INSTALL_NAME),$(@:$(EXEEXT)=)).res.$(OBJEXT)
 RCFILES = $(RUBY_INSTALL_NAME).rc $(RUBYW_INSTALL_NAME).rc $(DLL_BASE_NAME).rc
 RUBYDEF = $(DLL_BASE_NAME).def
+override LIBRUBY_FOR_LEAKED_GLOBALS := # DLL shows symbols from import library
 
 ruby: $(PROGRAM)
 rubyw: $(WPROGRAM)

template/Makefile.in

@@ -637,6 +637,10 @@ un-runnable:
 	$(ECHO) cannot make runnable, configure with --enable-load-relative.
 	$(Q) exit 1
 
+LIBRUBY_FOR_LEAKED_GLOBALS = $(enable_shared:no=)
 yes-test-basic: $(DOT_WAIT) leaked-globals
-leaked-globals: $(COMMONOBJS) prog $(tooldir)/leaked-globals PHONY
-	$(Q) $(XRUBY) $(tooldir)/leaked-globals NM="$(NM) -Pgp" SYMBOL_PREFIX=$(SYMBOL_PREFIX) PLATFORM=$(hdrdir)/ruby/$(PLATFORM_DIR).h $(srcdir)/configure.ac $(COMMONOBJS)
+leaked-globals: $(COMMONOBJS) prog $(tooldir)/leaked-globals
+	$(Q) $(XRUBY) $(tooldir)/leaked-globals \
+	  SOEXT=$(SOEXT) NM="$(NM) -Pgp" SYMBOL_PREFIX=$(SYMBOL_PREFIX) \
+	  PLATFORM=$(hdrdir)/ruby/$(PLATFORM_DIR).h $(srcdir)/configure.ac \
+	  $(COMMONOBJS) $(LIBRUBY_FOR_LEAKED_GLOBALS:yes=$(LIBRUBY_SO))

tool/leaked-globals

@@ -3,12 +3,14 @@ require_relative 'lib/colorize'
 
 until ARGV.empty?
   case ARGV[0]
-  when /\ASYMBOL_PREFIX=(.*)/
+  when /\A SYMBOL_PREFIX=(.*)/x
     SYMBOL_PREFIX = $1
-  when /\ANM=(.*)/              # may be multiple words
+  when /\A NM=(.*)/x            # may be multiple words
     NM = $1
-  when /\APLATFORM=(.+)?/
+  when /\A PLATFORM=(.+)?/x
     platform = $1
+  when /\A SOEXT=(.+)?/x
+    soext = $1
   else
     break
   end
@@ -51,13 +53,28 @@ REPLACE.push("rust_eh_personality") if RUBY_PLATFORM.include?("darwin")
 
 print "Checking leaked global symbols..."
 STDOUT.flush
+soext = /\.#{soext}(?:$|\.)/ if soext
+so = soext =~ ARGV.first if ARGV.size == 1
 IO.foreach("|#{NM} #{ARGV.join(' ')}") do |line|
+  line.chomp!
+  next so = nil if line.empty?
+  if so.nil? and line.chomp!(":")
+    so = soext =~ line || false
+    next
+  end
   n, t, = line.split
   next unless /[A-TV-Z]/ =~ t
   next unless n.sub!(/^#{SYMBOL_PREFIX}/o, "")
   next if n.include?(".")
-  next if n.start_with?("___asan_")
-  next if /\A(?:Init_|InitVM_|RUBY_|ruby_|rb_|yp_|[Oo]nig|dln_|coroutine_)/ =~ n
+  next if !so and n.start_with?("___asan_")
+  case n
+  when /\A(?:Init_|InitVM_|yp_|[Oo]nig|dln_|coroutine_)/
+    next
+  when /\Aruby_static_id_/
+    next unless so
+  when /\A(?:RUBY_|ruby_|rb_)/
+    next unless so and /_(threadptr|ec)_/ =~ n
+  end
   next if REPLACE.include?(n)
   puts col.fail("leaked") if count.zero?
   count += 1