common.mk: stop building MJIT min header for mswin

Since it's impossible to leave macro when preprocessing C source file
with cl.exe, I decided to create precompiled header on Ruby's build time
instead.

We're not doing it for non-mswin environment for 2 reasons:
1) Precompiled header may not be able to be used when CC is upgraded.
2) We need to create as many precompiled headers as the patterns of
   compile options. (Probably only 2, for with and without --jit-debug)

I'll ignore them for mswin for now, and solve it later by including CC
version and --jit-debug information in precompiled header filename.
After that, non-mswin environment may follow it to simplify build system.

Makefile.in: ditto

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64182 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 31 insertions, 0 deletions

diff --git a/Makefile.in b/Makefile.in
index cf533dac50..48d63dd47f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -54,6 +54,7 @@ INSTALLDOC = @INSTALLDOC@
 DOCTARGETS = @RDOCTARGET@ @CAPITARGET@
 
 EXTOUT = @EXTOUT@
+TIMESTAMPDIR  = $(EXTOUT)/.timestamp
 arch_hdrdir = $(EXTOUT)/include/$(arch)
 VPATH = $(arch_hdrdir)/ruby:$(hdrdir)/ruby:$(srcdir):$(srcdir)/missing
 
@@ -84,6 +85,10 @@ MJIT_OPTFLAGS = @MJIT_OPTFLAGS@
 MJIT_DEBUGFLAGS = @MJIT_DEBUGFLAGS@
 MJIT_LDSHARED = @MJIT_LDSHARED@
 MJIT_DLDFLAGS = @DLDFLAGS@
+MJIT_HEADER   = rb_mjit_header.h
+MJIT_MIN_HEADER_NAME = rb_mjit_min_header-$(RUBY_PROGRAM_VERSION).h
+MJIT_MIN_HEADER = $(MJIT_HEADER_BUILD_DIR)/$(MJIT_MIN_HEADER_NAME)
+MJIT_HEADER_BUILD_DIR = $(EXTOUT)/include/$(arch)
 LDFLAGS = @STATIC@ $(CFLAGS) @LDFLAGS@
 EXTLDFLAGS = @EXTLDFLAGS@
 XLDFLAGS = @XLDFLAGS@ $(EXTLDFLAGS)
@@ -429,6 +434,32 @@ probes.$(OBJEXT): $(srcdir)/probes.d $(DTRACE_REBUILD:yes=probes.stamp)
 	$(Q) $(RM) $@
 	$(Q) $(DTRACE) -G -C $(INCFLAGS) -s $(srcdir)/probes.d -o $@ $(DTRACE_REBUILD_OBJS)
 
+main: $(MJIT_MIN_HEADER)
+mjit-headers: $(MJIT_MIN_HEADER)
+clean-local::
+	$(Q)$(RM) $(MJIT_HEADER) $(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX:%=*).h
+	$(Q)$(RM) $(MJIT_MIN_HEADER) $(MJIT_MIN_HEADER:.h=)$(MJIT_HEADER_SUFFIX:%=*).h
+	$(Q)$(RM) $(MJIT_HEADER_INSTALL_DIR)/rb_mjit_min_header-*.h
+	$(Q)$(RM) $(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time mjit_config.h
+	-$(Q) $(RMDIRS) $(MJIT_HEADER_INSTALL_DIR) 2> $(NULL) || exit 0
+
+# Other `-Dxxx`s preceding `-DMJIT_HEADER` will be removed in transform_mjit_header.rb.
+# So `-DMJIT_HEADER` should be passed first when rb_mjit_header.h is generated.
+$(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time: probes.h vm.$(OBJEXT)
+	$(ECHO) building $(@F:.time=.h)
+	$(Q) $(CPP) -DMJIT_HEADER $(MJIT_HEADER_FLAGS) $(CFLAGS) $(XCFLAGS) $(CPPFLAGS) $(srcdir)/vm.c $(CPPOUTFLAG)$(@F:.time=.h).new
+	$(Q) $(IFCHANGE) "--timestamp=$@" $(@F:.time=.h) $(@F:.time=.h).new
+
+$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).h: $(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time
+
+$(MJIT_MIN_HEADER:.h=)$(MJIT_HEADER_SUFFIX).h: $(TIMESTAMPDIR)/$(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).time
+$(MJIT_MIN_HEADER:.h=)$(MJIT_HEADER_SUFFIX).h: $(srcdir)/tool/transform_mjit_header.rb $(PREP)
+$(MJIT_MIN_HEADER:.h=)$(MJIT_HEADER_SUFFIX).h: $(MJIT_HEADER:.h=)$(MJIT_HEADER_SUFFIX).h
+	$(ECHO) building $@
+	$(MINIRUBY) $(srcdir)/tool/transform_mjit_header.rb "$(CC) $(ARCH_FLAG)" $(MJIT_HEADER:.h=)$(MJIT_HEADER_ARCH).h $@
+	$(Q) $(MAKEDIRS) $(MJIT_HEADER_INSTALL_DIR)
+	$(Q) $(MAKE_LINK) $@ $(MJIT_HEADER_INSTALL_DIR)/$(@F)
+
 # DTrace static library hacks described here:
 # http://mail.opensolaris.org/pipermail/dtrace-discuss/2005-August/000207.html
 ruby-glommed.$(OBJEXT):