compilerplugins/Makefile-clang.mk

   1 #
   2 # This file is part of the LibreOffice project.
   3 #
   4 # This Source Code Form is subject to the terms of the Mozilla Public
   5 # License, v. 2.0. If a copy of the MPL was not distributed with this
   6 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7 #
   8
   9 # Make sure variables in this Makefile do not conflict with other variables (e.g. from gbuild).
  10
  11 # The list of source files.
  12 CLANGSRC= \
  13     plugin.cxx \
  14     bodynotinblock.cxx \
  15     lclstaticfix.cxx \
  16     postfixincrementfix.cxx \
  17     sallogareas.cxx \
  18     unusedvariablecheck.cxx \
  19
  20
  21 # You may occassionally want to override some of these
  22
  23 # Compile flags ('make CLANGCXXFLAGS=-g' if you need to debug the plugin)
  24 CLANGCXXFLAGS=-O2 -Wall -g
  25 # The prefix where Clang resides, override to where Clang resides if using a source build.
  26 CLANGDIR=/usr
  27 # The build directory (different from CLANGDIR if using a Clang out-of-source build)
  28 CLANGBUILD=/usr
  29
  30 # The uninteresting rest.
  31
  32 # Clang headers require these.
  33 CLANGDEFS=-D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -fno-rtti
  34 # All include locations needed.
  35 CLANGINCLUDES=-I$(CLANGDIR)/include -I$(CLANGDIR)/tools/clang/include -I$(CLANGBUILD)/include -I$(CLANGBUILD)/tools/clang/include
  36
  37 # Clang/LLVM libraries are intentionally not linked in, they are usually built as static libraries, which means the resulting
  38 # plugin would be big (even though the clang binary already includes it all) and it'd be necessary to explicitly specify
  39 # also all the dependency libraries.
  40
  41 CLANGINDIR=$(SRCDIR)/compilerplugins/clang
  42 # Cannot use $(WORKDIR), the plugin should survive even 'make clean', otherwise the rebuilt
  43 # plugin will cause cache misses with ccache.
  44 CLANGOUTDIR=$(SRCDIR)/compilerplugins/obj
  45
  46 compilerplugins: $(CLANGOUTDIR) $(CLANGOUTDIR)/plugin.so
  47
  48 compilerplugins-clean:
  49         rm -rf $(CLANGOUTDIR)
  50
  51 $(CLANGOUTDIR):
  52         mkdir -p $(CLANGOUTDIR)
  53
  54 CLANGOBJS=
  55
  56 define clangbuildsrc
  57 $(3): $(2) $(SRCDIR)/compilerplugins/Makefile-clang.mk $(CLANGOUTDIR)/clang-timestamp
  58         @echo [build CXX] $(subst $(SRCDIR)/,,$(2))
  59         $(CXX) $(CLANGPLUGIN_CPPFLAGS) $(CLANGCXXFLAGS) $(CLANGDEFS) $(CLANGINCLUDES) -DSRCDIR=$(SRCDIR) $(2) -fPIC -c -o $(3) -MMD -MT $(3) -MP -MF $(CLANGOUTDIR)/$(1).d
  60
  61 -include $(CLANGOUTDIR)/$(1).d
  62
  63 $(CLANGOUTDIR)/plugin.so: $(3)
  64 $(CLANGOUTDIR)/plugin.so: CLANGOBJS += $(3)
  65 endef
  66
  67 $(foreach src, $(CLANGSRC), $(eval $(call clangbuildsrc,$(src),$(CLANGINDIR)/$(src),$(CLANGOUTDIR)/$(src:.cxx=.o))))
  68
  69 $(CLANGOUTDIR)/plugin.so: $(CLANGOBJS)
  70         @echo [build LNK] $(subst $(SRCDIR)/,,$@)
  71         $(CXX) -shared $(CLANGOBJS) -o $@
  72
  73 # Clang most probably doesn't maintain binary compatibility, so rebuild when clang changes.
  74 $(CLANGOUTDIR)/clang-timestamp: $(CLANGBUILD)/bin/clang
  75         touch $@ -r $^
  76
  77 # vim: set noet sw=4 ts=4: