GNUmakefile

   1 ##---------------------------------------------------------------------
   2 # Makefile for Libsystem
   3 # Call Makefile to do the work, but for the install case, we need to
   4 # call Makefile for each arch separately, and create fat dylibs at the
   5 # end.  This is because the comm page symbols are added as a special segment,
   6 # which the linker will not thin, so we have to build thin and combine.
   7 ##---------------------------------------------------------------------
   8 Project = Libsystem
   9 VersionLetter = B
  10
  11 # Remove any NEXT_ROOT argument
  12 override MAKEOVERRIDES := $(filter-out NEXT_ROOT=%,$(MAKEOVERRIDES))
  13 override MAKEFILEPATH := $(subst $(NEXT_ROOT),,$(MAKEFILEPATH))
  14 unexport NEXT_ROOT
  15
  16 include $(MAKEFILEPATH)/CoreOS/ReleaseControl/Common.make
  17
  18 ifeq ($(Version),0)
  19 ifdef RC_ProjectSourceVersion
  20 Version = $(RC_ProjectSourceVersion)
  21 endif
  22 endif
  23
  24 no_target:
  25         @$(MAKE) -f Makefile
  26
  27 ifndef RC_TARGET_CONFIG
  28 export RC_TARGET_CONFIG = MacOSX
  29 endif
  30
  31 # Default platform order file.  The platform Makefile.inc can override.
  32 PLATFORM_ORDER_FILE = $(SRCROOT)/Platforms/$(RC_TARGET_CONFIG)/System.order
  33
  34 include Platforms/$(RC_TARGET_CONFIG)/Makefile.inc
  35
  36 ##---------------------------------------------------------------------
  37 # For each arch, we setup the independent OBJROOT and DSTROOT, and adjust
  38 # the other flags.  After all the archs are built, we copy over one on
  39 # time (for the non-dylib files), and then call lipo to create fat files
  40 # for the three dylibs.
  41 ##---------------------------------------------------------------------
  42 NARCHS = $(words $(RC_ARCHS))
  43 USRLIB = /usr/lib
  44 ifdef ALTUSRLOCALLIBSYSTEM
  45 LIBSYS = $(ALTUSRLOCALLIBSYSTEM)
  46 else
  47 LIBSYS = $(SDKROOT)/usr/local/lib/system
  48 endif
  49 FORMS = dynamic
  50 SUFFIX = ''
  51 ifdef FEATURE_DEBUG_DYLIB
  52 FORMS += debug
  53 SUFFIX += _debug
  54 endif
  55 ifdef FEATURE_PROFILE_DYLIB
  56 FORMS += profile
  57 SUFFIX += _profile
  58 endif
  59 BSD_LIBS = c info m pthread dbm poll dl rpcsvc proc
  60 FPATH = /System/Library/Frameworks/System.framework
  61
  62 build:: fake libSystem
  63         @set -x && \
  64         cd $(DSTROOT)/usr/lib && \
  65         for i in $(BSD_LIBS); do \
  66             $(LN) -sf libSystem.dylib lib$$i.dylib || exit 1; \
  67         done
  68         $(FIND) $(DSTROOT) -type l ! -perm 755 | $(XARGS) chmod -hv 755
  69         $(INSTALL_DIRECTORY) $(DSTROOT)$(FPATH)/Versions/$(VersionLetter)/Resources
  70         @set -x && \
  71         cd $(DSTROOT)$(FPATH) && \
  72         $(LN) -sf Versions/Current/PrivateHeaders && \
  73         $(LN) -sf Versions/Current/Resources && \
  74         for S in $(SUFFIX); do \
  75             $(LN) -sf Versions/Current/System$$S || exit 1; \
  76         done && \
  77         cd Versions && \
  78         $(LN) -sf $(VersionLetter) Current && \
  79         cd $(VersionLetter) && \
  80         for S in $(SUFFIX); do \
  81             $(LN) -sf ../../../../../../usr/lib/libSystem.$(VersionLetter)$$S.dylib System$$S || exit 1; \
  82         done && \
  83         $(CP) $(SRCROOT)/Info.plist Resources
  84
  85 # 4993197: force dependency generation for libsyscall.a
  86 fake:
  87         @set -x && \
  88         cd $(OBJROOT) && \
  89         $(ECHO) 'main() { __getpid(); return 0; }' > fake.c && \
  90         $(CC) -c $(RC_CFLAGS) fake.c && \
  91         $(LD) -r -o fake $(foreach ARCH,$(RC_ARCHS),-arch $(ARCH)) fake.o -lsyscall -L$(LIBSYS)
  92
  93 libc:
  94         $(MKDIR) '$(OBJROOT)/libc'
  95         $(BSDMAKE) -C libsys install \
  96         FEATURE_DEBUG_DYLIB=$(FEATURE_DEBUG_DYLIB) \
  97         FEATURE_PROFILE_DYLIB=$(FEATURE_PROFILE_DYLIB) \
  98         DSTROOT='$(DSTROOT)' \
  99         OBJROOT='$(OBJROOT)/libc' \
 100         SRCROOT='$(SRCROOT)' \
 101         SYMROOT='$(SYMROOT)'
 102
 103 libSystem: libc
 104         $(MKDIR) '$(OBJROOT)/libSystem'
 105         $(BSDMAKE) install \
 106         FEATURE_LIBMATHCOMMON=$(FEATURE_LIBMATHCOMMON) \
 107         PLATFORM_ORDER_FILE=$(PLATFORM_ORDER_FILE) \
 108         FORMS='$(FORMS)' \
 109         Version=$(Version) \
 110         VersionLetter=$(VersionLetter) \
 111         DSTROOT='$(DSTROOT)' \
 112         OBJROOT='$(OBJROOT)/libSystem' \
 113         SRCROOT='$(SRCROOT)' \
 114         SYMROOT='$(SYMROOT)'