# -*- Makefile -*-
# Fiasco make configuration file
#
# created 1996/04/20 by hohmuth
#

CHECKCC         = $(shell if $(CC)  $(1) -S -o /dev/null -xc   /dev/null \
		    > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)

CHECKCXX        = $(shell if $(CXX) $(1) -S -o /dev/null -xc++ /dev/null \
		    > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)

eval_impl	= $(if $($(1)_IMPL),$($(1)_IMPL),$(1))

include $(objbase)/globalconfig.out
# use patsubst here to prevent confusion of syntax highlighting editors :-)
CONFIG_XARCH	:= $(patsubst "%",%,$(CONFIG_XARCH))
CONFIG_ABI	:= $(patsubst "%",%,$(CONFIG_ABI))

SYSTEM		:= $(shell uname)
CC		:= $(patsubst "%",%,$(CONFIG_CC))
CXX		:= $(patsubst "%",%,$(CONFIG_CXX))
HOST_CC		:= $(patsubst "%",%,$(CONFIG_HOST_CC))
HOST_CXX	:= $(patsubst "%",%,$(CONFIG_HOST_CXX))
RM		:= rm -f
RM_R		:= rm -rf
ECHO		:= echo
ECHO_E		:= bash --norc -c 'echo -e "$$0" "$$@"'
CP		:= cp
GREP		:= GREP_OPTIONS= grep
AWKP		?= gawk --posix
CFLAGS		:=
CXXFLAGS	:=
OPT_CFLAGS	:= -O2
OPT_CXXFLAGS	:= -O2
NOOPT_CFLAGS	:= -Os
NOOPT_CXXFLAGS	:= -Os
ARFLAGS		:= crs
srcdir		?= .
L4DIR		?= $(srcdir)/../../../l4
tooldir		:= $(srcdir)/../tool
MOVE_IF_CHANGE	:= $(srcdir)/../tool/move-if-change
SHOWDEPS	:= $(srcdir)/../tool/showdeps
PREPROCESSDEPS	:= $(srcdir)/../tool/parsedeps
CIRCULAR	:= $(srcdir)/../tool/circular

ifeq ($(SYSTEM),FreeBSD)
  MD5SUM	:= /sbin/md5
else
  MD5SUM	:= md5sum
endif

# The name of this file can be overridden from the command line or in
# objdir/Makeconf.local.
MODULES_FILE	= $(srcdir)/Modules.$(CONFIG_XARCH)

PREPROCESS = \
  $(word 1, $(wildcard $(shell cd $(srcdir)/../../../tools/preprocess/src 2>/dev/null; \
                               pwd)/preprocess \
   $(shell cd $(srcdir)/../../tools/preprocess/src 2>/dev/null; \
                               pwd)/preprocess \
		       $(DROPS_STDDIR)/tool/bin/preprocess) preprocess)

ifeq ($(CONFIG_INLINE),y)
  PREPROCESS_FLAGS = -i -t
else
  PREPROCESS_FLAGS = -t
endif

AS			= $(SYSTEM_TARGET)as
LD			= $(SYSTEM_TARGET)ld
AR			= $(SYSTEM_TARGET)ar
NM			= $(SYSTEM_TARGET)nm
RANLIB			= $(SYSTEM_TARGET)ranlib
SIZE			= $(SYSTEM_TARGET)size
STRIP			= $(SYSTEM_TARGET)strip
OBJCOPY			= $(SYSTEM_TARGET)objcopy
OBJDUMP			= $(SYSTEM_TARGET)objdump

# Include architecture-specific rules. These may overwrite anything above
include $(srcdir)/Makeconf.$(CONFIG_XARCH)

# Include user-specific rules. These may overwrite anything above
-include $(srcdir)/Makeconf.local
-include $(objbase)/Makeconf.local

ifneq ($(CCXX_VERSION),)
  CCXX_SUFFIX		:= -$(CCXX_VERSION)
endif

CC			:= $(CCXX_WRAP) $(SYSTEM_TARGET)$(CC)$(CCXX_SUFFIX)
CXX			:= $(CCXX_WRAP) $(SYSTEM_TARGET)$(CXX)$(CCXX_SUFFIX)

CCVER_MAJOR		:= $(shell $(CXX) -dumpversion | cut -d . -f 1)
CCVER_MINOR		:= $(shell $(CXX) -dumpversion | cut -d . -f 2)
LIBGCC			:= $(shell $(CXX) -print-libgcc-file-name)

L4ALL_INCDIR     	?= $(addprefix -I, $(PRIVATE_INCDIR))
L4STD_INCDIR    	?= -nostdinc
L4STD_INCDIR_LAST	?= -I$(wildcard $(dir $(LIBGCC))/include \
			                $(dir $(LIBGCC))/../include)
KERNEL_LDFLAGS		+= -gc-sections
SHARED_FLAGS		+= -fno-defer-pop -freg-struct-return -g -Wall -W
SHARED_FLAGS		+= -Wno-parentheses
SHARED_FLAGS		+= $(call CHECKCC,-Wformat=2,)
SHARED_FLAGS		+= $(call CHECKCC,-fno-stack-protector,)
SHARED_FLAGS		+= $(call CHECKCC,-Wframe-larger-than=512)
SHARED_FLAGS		+= $(call CHECKCC,-fdiagnostics-show-option)
OPT_CXXFLAGS		+= $(call CHECKCXX,-fweb,)
OPT_CFLAGS		+= $(call CHECKCC,-fweb,)
OPT_SHARED_FLAGS	+= $(call CHECKCC,-frename-registers,)
OPT_SHARED_FLAGS	+= $(call CHECKCC,-fgcse-after-reload,)
CXXFLAGS		+= -fno-implement-inlines

LD_EMULATION		:= $(if $(LD_EMULATION-SYSTEM-$(SYSTEM)),\
			        $(LD_EMULATION-SYSTEM-$(SYSTEM)),\
			        $(LD_EMULATION-SYSTEM-default))

# Configuration dependent compile flags
ifneq ($(CONFIG_PROFILE),y)
  SHARED_FLAGS		+= -ffunction-sections
endif
ifeq ($(CONFIG_NDEBUG),y)
  SHARED_FLAGS		+= -DNDEBUG
endif
ifeq ($(CONFIG_NO_FRAME_PTR),y)
  SHARED_FLAGS		+= -fomit-frame-pointer
endif
ifeq ($(CONFIG_GSTABS),y)
  SHARED_FLAGS		+= -gstabs+
endif
ifeq ($(CONFIG_PROFILE),y)
  PROF_FLAGS		+= -pg
endif
ifeq ($(CONFIG_UNREACHABLE_CODE),y)
  SHARED_FLAGS		+= $(call CHECKCC,-Wunreachable-code,)
endif

# Eagerly compute SHARED_FLAGS to avoid calling CHECKCC over and over again.
SHARED_FLAGS	:= $(SHARED_FLAGS) $(SHARED_FLAGS-y)

# Standard compile flags
ASFLAGS		+= $(SHARED_FLAGS) -DASSEMBLER
CFLAGS		+= $(SHARED_FLAGS)
CXXFLAGS	+= $(SHARED_FLAGS) -fno-rtti -fno-exceptions
OPT_CFLAGS	+= $(OPT_SHARED_FLAGS)
OPT_CXXFLAGS	+= $(OPT_SHARED_FLAGS)
NOOPT_CFLAGS	+= $(NOOPT_SHARED_FLAGS)
NOOPT_CXXFLAGS	+= $(NOOPT_SHARED_FLAGS)
CPPFLAGS	+= $(L4STD_INCDIR) $(L4ALL_INCDIR) $(L4STD_INCDIR_LAST)
CXXFLAGS	+= $(call CHECKCXX,-fno-threadsafe-statics,)
CXXFLAGS	+= $(call CHECKCXX,-Wno-non-virtual-dtor,)

ifneq ($(CONFIG_VERBOSE),y)
VERBOSE		= @
PREP_MESSAGE	?= @$(ECHO) "  ... Preprocessing $*"
endif

# Output formatting, set V=1 to see command line, V=0 to prevent printing them
VERBOSE		?=
ifeq ($(V),1)
  VERBOSE :=
endif
ifeq ($(V),0)
  VERBOSE := @
endif
AR_MESSAGE	?= @$(ECHO) "  ==> Archiving into $@"
COMP_MESSAGE	?= @$(ECHO) "  ... Making $@"
LINK_MESSAGE	?= @$(ECHO) "  ==> Linking $@"
DEP_MESSAGE	?= @$(ECHO) "  ... Building dependencies for $<"
PREP_MESSAGE    ?= @$(ECHO) "  ... Preprocessing $(filter %.cpp,$^)"
CHKSUM_MESSAGE  ?= @$(ECHO) "  ... Generating checksum for "
PATCH_MESSAGE   ?= @$(ECHO) "  ... Writing checksum into "
STRIP_MESSAGE	?= @$(ECHO) "  ... Stripping $@"
GENVER_MESSAGE	?= @$(ECHO) "  ... Generating version information" 
CLEAN_MESSAGE	?= @$(ECHO) "Removing created files"
CLEANALL_MESSAGE?= @$(ECHO) "Removing all created files"
INST_MESSAGE	?= @$(ECHO) "Installing $(^F)"
OK_MESSAGE      ?= 

COMP_MESSAGE_NOOPT ?= $(COMP_MESSAGE)

ifneq ($(VERBOSE),)
MOVE_IF_CHANGE += -q
endif

SRC_ALL = $(SRC_S) $(SRC_CPP) $(SRC_C) $(SRC_CC)
ifeq ($(filter clean cleanall mrproper,$(MAKECMDGOALS)),)
DEPS	= $(foreach file,$(SRC_ALL), $(dir $(file)).$(notdir $(file)).d)
else
DEPS    = /dev/null
endif

ifeq ("$(CONFIG_ALLOW_RO_TEXT)","y")
  PREPROCESS_PARTS += rotext
endif