libffi/ghc.mk

   1 # -----------------------------------------------------------------------------
   2 #
   3 # (c) 2009 The University of Glasgow
   4 #
   5 # This file is part of the GHC build system.
   6 #
   7 # To understand how the build system works and how to modify it, see
   8 #      http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
   9 #      http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
  10 #
  11 # -----------------------------------------------------------------------------
  12
  13
  14 # We package libffi as Haskell package for two reasons:
  15
  16 # 1) GHC uses different names for shared and static libs, so it can
  17 #    choose the lib variant to link with on its own. With regular
  18 #    libtool styled shared lib names, the linker would interfer and
  19 #    link against the shared lib variant even when GHC runs in -static
  20 #    mode.
  21 # 2) The first issue isn't a problem when a shared lib of libffi would
  22 #    be installed in system locations, but we do not assume that. So,
  23 #    when running in -dynamic mode, we must either install libffi to
  24 #    system locations ourselves, or we must add its location to
  25 #    respective environment variable, (DY)LD_LIBRARY_PATH etc...before
  26 #    we call dynamically linked binaries. Especially, the latter is
  27 #    necessary as GHC calls binary it produced before its installation
  28 #    phase. However, both mechanism, installing to system locations or
  29 #    modifying (DY)LD_LIBRARY_PATH, are already in place for Haskell
  30 #    packages so with packaging libffi as Haskell package we reuse
  31 #    them naturally.
  32
  33 # -----------------------------------------------------------------------------
  34 #
  35 # We use libffi's own configuration stuff.
  36
  37 PLATFORM := $(shell echo $(HOSTPLATFORM) | sed 's/i[567]86/i486/g')
  38
  39 # 2007-07-05
  40 # Passing
  41 #     as_ln_s='cp -p'
  42 # isn't sufficient to stop cygwin using symlinks the mingw gcc can't
  43 # follow, as it isn't used consistently. Instead we put an ln.bat in
  44 # path that always fails.
  45
  46 ifeq "$(BuildSharedLibs)" "YES"
  47 libffi_STAMP_CONFIGURE = libffi/stamp.ffi.configure-shared
  48 libffi_STAMP_BUILD     = libffi/stamp.ffi.build-shared
  49 else
  50 libffi_STAMP_CONFIGURE = libffi/stamp.ffi.configure
  51 libffi_STAMP_BUILD     = libffi/stamp.ffi.build
  52 endif
  53
  54 BINDIST_STAMPS = libffi/stamp.ffi.build libfii/stamp.ffi.configure
  55
  56 INSTALL_HEADERS   += libffi/dist-install/build/ffi.h \
  57                      libffi/dist-install/build/ffitarget.h
  58 libffi_STATIC_LIB  = libffi/dist-install/build/libffi.a
  59 INSTALL_LIBS      += libffi/dist-install/build/libHSffi.a \
  60                      libffi/dist-install/build/libHSffi_p.a \
  61                      libffi/dist-install/build/HSffi.o
  62
  63 # We have to add the GHC version to the name of our dynamic libs, because
  64 # they will be residing in the system location along with dynamic libs from
  65 # other GHC installations.
  66
  67 libffi_HS_DYN_LIB_NAME = libHSffi$(dyn_libsuf)
  68 libffi_HS_DYN_LIB      = libffi/dist-install/build/$(libffi_HS_DYN_LIB_NAME)
  69
  70 ifeq "$(Windows)" "YES"
  71 libffi_DYNAMIC_PROG = $(libffi_HS_DYN_LIB).a
  72 libffi_DYNAMIC_LIBS = $(libffi_HS_DYN_LIB)
  73 else
  74 libffi_DYNAMIC_PROG =
  75 ifeq "$(darwin_TARGET_OS)" "1"
  76 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi$(soext) \
  77                       libffi/dist-install/build/libffi.5$(soext)
  78 else ifeq "$(openbsd_TARGET_OS)" "1"
  79 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi.so.5.10
  80 else
  81 libffi_DYNAMIC_LIBS = libffi/dist-install/build/libffi.so \
  82                       libffi/dist-install/build/libffi.so.5
  83 endif
  84 endif
  85
  86 ifeq "$(BuildSharedLibs)" "YES"
  87 libffi_EnableShared=yes
  88 else
  89 libffi_EnableShared=no
  90 endif
  91
  92 ifeq "$(BuildSharedLibs)" "YES"
  93 INSTALL_LIBS  += $(libffi_HS_DYN_LIB)
  94 ifeq "$(Windows)" "YES"
  95 INSTALL_PROGS += $(libffi_HS_DYN_LIB).a
  96 endif
  97 endif
  98
  99 # We have to fake a non-working ln for configure, so that the fallback
 100 # option (cp -p) gets used instead.  Otherwise the libffi build system
 101 # will use cygwin symbolic linkks which cannot be read by mingw gcc.
 102 # The same trick is played by the GMP build in ../gmp.
 103
 104 ifneq "$(BINDIST)" "YES"
 105 $(libffi_STAMP_CONFIGURE):
 106         "$(RM)" $(RM_OPTS_REC) $(LIBFFI_DIR) libffi/build
 107         cat ghc-tarballs/libffi/libffi*.tar.gz | $(GZIP_CMD) -d | { cd libffi && $(TAR_CMD) -xf - ; }
 108         mv libffi/libffi-* libffi/build
 109         chmod +x libffi/ln
 110
 111 # Because -Werror may be in SRC_CC_OPTS/SRC_LD_OPTS, we need to turn
 112 # warnings off or the compilation of libffi might fail due to warnings
 113         cd libffi && \
 114             PATH=`pwd`:$$PATH; \
 115             export PATH; \
 116             cd build && \
 117             CC=$(WhatGccIsCalled) \
 118             LD=$(LD) \
 119             AR=$(AR) \
 120             NM=$(NM) \
 121         CFLAGS="$(SRC_CC_OPTS) $(CONF_CC_OPTS_STAGE1) -w" \
 122         LDFLAGS="$(SRC_LD_OPTS) $(CONF_GCC_LINKER_OPTS_STAGE1) -w" \
 123         "$(SHELL)" configure \
 124                   --enable-static=yes \
 125                   --enable-shared=$(libffi_EnableShared) \
 126                   --host=$(PLATFORM) --build=$(PLATFORM)
 127
 128         # libffi.so needs to be built with the correct soname.
 129         # NOTE: this builds libffi_convience.so with the incorrect
 130         # soname, but we don't need that anyway!
 131         cd libffi && \
 132           "$(CP)" build/libtool build/libtool.orig; \
 133           sed -e s/soname_spec=.*/soname_spec="$(libffi_HS_DYN_LIB_NAME)"/ build/libtool.orig > build/libtool
 134
 135         # We don't want libtool's cygwin hacks
 136         cd libffi && \
 137           "$(CP)" build/libtool build/libtool.orig; \
 138           sed -e s/dlname=\'\$$tdlname\'/dlname=\'\$$dlname\'/ build/libtool.orig > build/libtool
 139
 140         touch $@
 141
 142 libffi/dist-install/build/ffi.h: $(libffi_STAMP_CONFIGURE) libffi/dist-install/build/ffitarget.h | $$(dir $$@)/.
 143         "$(CP)" libffi/build/include/ffi.h $@
 144
 145 libffi/dist-install/build/ffitarget.h: $(libffi_STAMP_CONFIGURE) | $$(dir $$@)/.
 146         "$(CP)" libffi/build/include/ffitarget.h $@
 147
 148 $(libffi_STAMP_BUILD): $(libffi_STAMP_CONFIGURE) | libffi/dist-install/build/.
 149         $(MAKE) -C libffi/build MAKEFLAGS=
 150         cd libffi/build && ./libtool --mode=install cp libffi.la $(TOP)/libffi/dist-install/build
 151
 152         # We actually want both static and dllized libraries, because we build
 153         #   the runtime system both ways. libffi_convenience.a is the static version.
 154 ifeq "$(Windows)" "YES"
 155         cp libffi/build/.libs/libffi_convenience.a $(libffi_STATIC_LIB)
 156 endif
 157
 158         touch $@
 159
 160 $(libffi_STATIC_LIB): $(libffi_STAMP_BUILD)
 161         @test -f $@ || { echo "$< exits, but $@ does not."; echo "Suggest removing $<."; exit 1; }
 162
 163 # Rename libffi.a to libHSffi.a
 164 libffi/dist-install/build/libHSffi.a: $(libffi_STATIC_LIB)
 165         "$(CP)" $(libffi_STATIC_LIB) libffi/dist-install/build/libHSffi.a
 166
 167 libffi/dist-install/build/libHSffi_p.a: $(libffi_STATIC_LIB)
 168         "$(CP)" $(libffi_STATIC_LIB) libffi/dist-install/build/libHSffi_p.a
 169
 170 $(eval $(call all-target,libffi,$(INSTALL_HEADERS) $(INSTALL_LIBS)))
 171
 172 # The GHCi import lib isn't needed as compiler/ghci/Linker.lhs + rts/Linker.c
 173 # link the interpreted references to FFI to the compiled FFI.
 174 # Instead of adding libffi to the list preloaded packages (see
 175 # compiler/ghci/Linker.lhs:emptyPLS) we generate an empty HSffi.o
 176
 177 libffi/dist-install/build/HSffi.o: libffi/dist-install/build/libHSffi.a
 178         cd libffi/dist-install/build && \
 179           touch empty.c && \
 180           "$(CC)" $(SRC_CC_OPTS) $(CONF_CC_OPTS_STAGE1) -c empty.c -o HSffi.o
 181
 182 $(eval $(call all-target,libffi,libffi/dist-install/build/HSffi.o))
 183
 184 ifeq "$(BuildSharedLibs)" "YES"
 185 ifeq "$(Windows)" "YES"
 186 libffi/dist-install/build/libffi.dll.a $(libffi_HS_DYN_LIB): $(libffi_STAMP_BUILD)
 187         @test -f $@ || { echo "$< exits, but $@ does not."; echo "Suggest removing $<."; exit 1; }
 188
 189 # Windows libtool creates <soname>.dll, and as we already patched that
 190 # there is no need to copy from libffi.dll to libHSffi...dll.
 191 # However, the renaming is still required for the import library
 192 # libffi.dll.a.
 193 $(libffi_HS_DYN_LIB).a: libffi/dist-install/build/libffi.dll.a | $$(dir $$@)/.
 194         "$(CP)" $< $@
 195
 196 $(eval $(call all-target,libffi,$(libffi_HS_DYN_LIB).a))
 197
 198 else
 199 $(libffi_DYNAMIC_LIBS): $(libffi_STAMP_BUILD)
 200         @test -f $@ || { echo "$< exits, but $@ does not."; echo "Suggest removing $<."; exit 1; }
 201
 202 # Rename libffi.so to libHSffi...so
 203 $(libffi_HS_DYN_LIB): $(libffi_DYNAMIC_LIBS) | $$(dir $$@)/.
 204         "$(CP)" $(word 1,$(libffi_DYNAMIC_LIBS)) $(libffi_HS_DYN_LIB)
 205 ifeq "$(darwin_TARGET_OS)" "1"
 206         # Ensure library's install name is correct before anyone links with it.
 207         install_name_tool -id $(ghclibdir)/$(libffi_HS_DYN_LIB_NAME) $(libffi_HS_DYN_LIB)
 208 endif
 209
 210 $(eval $(call all-target,libffi,$(libffi_HS_DYN_LIB)))
 211 endif
 212 endif
 213
 214 $(eval $(call clean-target,libffi,, \
 215    libffi/build libffi/stamp.ffi.* libffi/dist-install))
 216 endif
 217
 218 #-----------------------------------------------------------------------------
 219 # Do the package config
 220
 221 $(eval $(call manual-package-config,libffi))
 222
 223 #-----------------------------------------------------------------------------
 224 #
 225 # binary-dist
 226
 227 BINDIST_EXTRAS += libffi/package.conf.in
 228