kernel/fiasco/src/Makeconf

   1 # -*- Makefile -*-
   2 # Fiasco make configuration file
   3 #
   4 # created 1996/04/20 by hohmuth
   5 #
   6
   7 CHECKCC         = $(shell if $(CC)  $(1) -S -o /dev/null -xc   /dev/null \
   8                     > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
   9
  10 CHECKCXX        = $(shell if $(CXX) $(1) -S -o /dev/null -xc++ /dev/null \
  11                     > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
  12
  13 eval_impl       = $(if $($(1)_IMPL),$($(1)_IMPL),$(1))
  14
  15 include $(objbase)/globalconfig.out
  16 # use patsubst here to prevent confusion of syntax highlighting editors :-)
  17 CONFIG_XARCH    := $(patsubst "%",%,$(CONFIG_XARCH))
  18 CONFIG_ABI      := $(patsubst "%",%,$(CONFIG_ABI))
  19
  20 SYSTEM          := $(shell uname)
  21 CC              := $(patsubst "%",%,$(CONFIG_CC))
  22 CXX             := $(patsubst "%",%,$(CONFIG_CXX))
  23 HOST_CC         := $(patsubst "%",%,$(CONFIG_HOST_CC))
  24 HOST_CXX        := $(patsubst "%",%,$(CONFIG_HOST_CXX))
  25 RM              := rm -f
  26 RM_R            := rm -rf
  27 ECHO            := echo
  28 ECHO_E          := bash --norc -c 'echo -e "$$0" "$$@"'
  29 CP              := cp
  30 GREP            := GREP_OPTIONS= grep
  31 AWKP            ?= gawk --posix
  32 CFLAGS          :=
  33 CXXFLAGS        := -std=c++0x
  34 OPT_CFLAGS      := -O2
  35 OPT_CXXFLAGS    := -O2
  36 NOOPT_CFLAGS    := -Os
  37 NOOPT_CXXFLAGS  := -Os
  38 ARFLAGS         := crs
  39 srcdir          ?= .
  40 L4DIR           ?= $(srcdir)/../../../l4
  41 tooldir         := $(srcdir)/../tool
  42 MOVE_IF_CHANGE  := $(srcdir)/../tool/move-if-change
  43 SHOWDEPS        := $(srcdir)/../tool/showdeps
  44 PREPROCESSDEPS  := $(srcdir)/../tool/parsedeps
  45 CIRCULAR        := $(srcdir)/../tool/circular
  46
  47 ifeq ($(SYSTEM),FreeBSD)
  48   MD5SUM        := /sbin/md5
  49 else
  50   MD5SUM        := md5sum
  51 endif
  52
  53 # The name of this file can be overridden from the command line or in
  54 # objdir/Makeconf.local.
  55 MODULES_FILE    = $(srcdir)/Modules.$(CONFIG_XARCH)
  56
  57 PREPROCESS = $(srcdir)/../tool/preprocess/src/preprocess
  58
  59 ifeq ($(CONFIG_INLINE),y)
  60   PREPROCESS_FLAGS = -i -t
  61 else
  62   PREPROCESS_FLAGS = -t
  63 endif
  64
  65 AS                      = $(SYSTEM_TARGET)as
  66 LD                      = $(SYSTEM_TARGET)ld
  67 AR                      = $(SYSTEM_TARGET)ar
  68 NM                      = $(SYSTEM_TARGET)nm
  69 RANLIB                  = $(SYSTEM_TARGET)ranlib
  70 SIZE                    = $(SYSTEM_TARGET)size
  71 STRIP                   = $(SYSTEM_TARGET)strip
  72 OBJCOPY                 = $(SYSTEM_TARGET)objcopy
  73 OBJDUMP                 = $(SYSTEM_TARGET)objdump
  74
  75 # Include architecture-specific rules. These may overwrite anything above
  76 include $(srcdir)/Makeconf.$(CONFIG_XARCH)
  77
  78 # Include user-specific rules. These may overwrite anything above
  79 -include $(srcdir)/Makeconf.local
  80 -include $(objbase)/Makeconf.local
  81
  82 ifneq ($(CCXX_VERSION),)
  83   CCXX_SUFFIX           := -$(CCXX_VERSION)
  84 endif
  85
  86 CPP                     := $(SYSTEM_TARGET)cpp$(CCXX_SUFFIX)
  87
  88 CC                      := $(CCXX_WRAP) $(SYSTEM_TARGET)$(CC)$(CCXX_SUFFIX)
  89 CXX                     := $(CCXX_WRAP) $(SYSTEM_TARGET)$(CXX)$(CCXX_SUFFIX)
  90
  91 CC_TYPE                 := $(if $(findstring clang,$(shell $(CXX) --version)),clang,gcc)
  92 CCVER_MAJOR             := $(shell $(CXX) -dumpversion | cut -d . -f 1)
  93 CCVER_MINOR             := $(shell $(CXX) -dumpversion | cut -d . -f 2)
  94 LIBGCC                  := $(shell $(CXX) -print-libgcc-file-name)
  95
  96
  97 L4ALL_INCDIR            ?= $(addprefix -I, $(PRIVATE_INCDIR))
  98 L4STD_INCDIR            ?= -nostdinc
  99 L4STD_INCDIR_LAST       ?= -I$(wildcard $(dir $(LIBGCC))/include \
 100                                         $(dir $(LIBGCC))/../include)
 101 KERNEL_LDFLAGS          += -gc-sections
 102 SHARED_FLAGS-gcc        += -fno-defer-pop -freg-struct-return
 103 # prevent a possible gcc 4.4 flaw from hitting us
 104 SHARED_FLAGS-gcc        += $(if $(filter 4.4,$(CCVER_MAJOR).$(CCVER_MINOR)),-fno-strict-aliasing)
 105 SHARED_FLAGS            += -g -Wall -W
 106 SHARED_FLAGS            += -Wno-parentheses
 107 SHARED_FLAGS            += $(call CHECKCC,-Wformat=2,)
 108 SHARED_FLAGS            += $(call CHECKCC,-fno-stack-protector,)
 109 SHARED_FLAGS            += $(call CHECKCC,-fdiagnostics-show-option)
 110
 111 OPT_CXXFLAGS-gcc        += $(call CHECKCXX,-fweb,)
 112 OPT_CFLAGS-gcc          += $(call CHECKCC,-fweb,)
 113 OPT_SHARED_FLAGS-gcc    += $(call CHECKCC,-frename-registers,)
 114 OPT_SHARED_FLAGS-gcc    += $(call CHECKCC,-fgcse-after-reload,)
 115 CXXFLAGS-gcc            += -fno-implement-inlines
 116
 117 -include $(objbase)/.Host-config
 118
 119 # Configuration dependent compile flags
 120 SHARED_FLAGS-$(CONFIG_NDEBUG)           += -DNDEBUG
 121 SHARED_FLAGS-$(CONFIG_NO_FRAME_PTR)     += -fomit-frame-pointer
 122 SHARED_FLAGS-$(CONFIG_GSTABS)           += -gstabs+
 123 SHARED_FLAGS-$(CONFIG_UNREACHABLE_CODE) += $(call CHECKCC,-Wunreachable-code,)
 124
 125 # Eagerly compute SHARED_FLAGS to avoid calling CHECKCC over and over again.
 126 SHARED_FLAGS       := $(SHARED_FLAGS) $(SHARED_FLAGS-y)
 127 SHARED_FLAGS       += $(SHARED_FLAGS-$(CC_TYPE))
 128 OPT_SHARED_FLAGS   += $(OPT_SHARED_FLAGS-$(CC_TYPE))
 129 NOOPT_SHARED_FLAGS += $(NOOPT_SHARED_FLAGS-$(CC_TYPE))
 130
 131 # Standard compile flags
 132 ASFLAGS         += $(SHARED_FLAGS) -DASSEMBLER
 133 ASFLAGS-clang   += -no-integrated-as
 134 CFLAGS          += $(SHARED_FLAGS)
 135 CXXFLAGS        += $(SHARED_FLAGS) -fno-rtti -fno-exceptions
 136 OPT_CFLAGS      += $(OPT_SHARED_FLAGS)
 137 OPT_CXXFLAGS    += $(OPT_SHARED_FLAGS)
 138 NOOPT_CFLAGS    += $(NOOPT_SHARED_FLAGS)
 139 NOOPT_CXXFLAGS  += $(NOOPT_SHARED_FLAGS)
 140 CPPFLAGS        += $(L4STD_INCDIR) $(L4ALL_INCDIR) $(L4STD_INCDIR_LAST)
 141 CXXFLAGS        += $(call CHECKCXX,-fno-threadsafe-statics,)
 142 CXXFLAGS        += $(call CHECKCXX,-Wno-non-virtual-dtor,)
 143
 144 ASFLAGS         += $(ASFLAGS-$(CC_TYPE))
 145 CXXFLAGS        += $(CXXFLAGS-$(CC_TYPE))
 146 OPT_CFLAGS      += $(OPT_CFLAGS-$(CC_TYPE))
 147 OPT_CXXFLAGS    += $(OPT_CXXFLAGS-$(CC_TYPE))
 148 NOOPT_CFLAGS    += $(NOOPT_CFLAGS-$(CC_TYPE))
 149 NOOPT_CXXFLAGS  += $(NOOPT_CXXFLAGS-$(CC_TYPE))
 150
 151
 152 # Output formatting, set V=1 to see command line, V=0 to prevent printing them
 153 VERBOSE         ?= @
 154 ifeq ($(V),1)
 155   VERBOSE :=
 156   PREP_MESSAGE  ?= @$(ECHO) "  ... Preprocessing $(filter %.cpp,$^)"
 157 endif
 158 AR_MESSAGE      ?= @$(ECHO) "  ==> Archiving into $@"
 159 COMP_MESSAGE    ?= @$(ECHO) "  ... Making $@"
 160 LINK_MESSAGE    ?= @$(ECHO) "  ==> Linking $@"
 161 DEP_MESSAGE     ?= @$(ECHO) "  ... Building dependencies for $<"
 162 PREP_MESSAGE    ?= @$(ECHO) "  ... Preprocessing $*"
 163 CHKSUM_MESSAGE  ?= @$(ECHO) "  ... Generating checksum for "
 164 PATCH_MESSAGE   ?= @$(ECHO) "  ... Writing checksum into "
 165 STRIP_MESSAGE   ?= @$(ECHO) "  ... Stripping $@"
 166 GENVER_MESSAGE  ?= @$(ECHO) "  ... Generating version information"
 167 CLEAN_MESSAGE   ?= @$(ECHO) "Removing created files"
 168 CLEANALL_MESSAGE?= @$(ECHO) "Removing all created files"
 169 INST_MESSAGE    ?= @$(ECHO) "Installing $(^F)"
 170 OK_MESSAGE      ?=
 171
 172 COMP_MESSAGE_NOOPT ?= $(COMP_MESSAGE)
 173
 174 ifneq ($(VERBOSE),)
 175 MOVE_IF_CHANGE += -q
 176 endif
 177
 178 SRC_ALL = $(SRC_S) $(SRC_CPP) $(SRC_C) $(SRC_CC)
 179 ifeq ($(filter clean cleanall mrproper,$(MAKECMDGOALS)),)
 180 DEPS    = $(foreach file,$(SRC_ALL), $(dir $(file)).$(notdir $(file)).d)
 181 else
 182 DEPS    = /dev/null
 183 endif
 184
 185 # To enable all warning ...
 186 ENABLE_ALL_WARNINGS ?= n
 187
 188 ifeq ($(CC_TYPE),gcc)
 189   ifeq ($(ENABLE_ALL_WARNINGS),y)
 190     tmp := $(call CHECKCC,-Wframe-larger-than=512)
 191     CFLAGS   += $(tmp)
 192     CXXFLAGS += $(tmp)
 193     tmp :=
 194   else
 195     F_UNINITIALIZED := $(firstword $(call CHECKCC,-Wmaybe-uninitialized) \
 196                                    $(call CHECKCC,-Wuninitialized))
 197     F_SET_NOT_USED  := $(call CHECKCC,-Wunused-but-set-variable)
 198
 199     F_UNINITIALIZED := $(patsubst -W%,-Wno-%,$(F_UNINITIALIZED))
 200     F_SET_NOT_USED  := $(patsubst -W%,-Wno-%,$(F_SET_NOT_USED))
 201
 202     CFLAGS +=   $(F_UNINITIALIZED) $(F_SET_NOT_USED)
 203     CXXFLAGS += $(F_UNINITIALIZED) $(F_SET_NOT_USED)
 204   endif
 205 endif
 206
 207