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###############################################################################
# Module name   : TOOLSET/arm251
# Module type   : Makefile system
# Environment(s): arm251
#
#
###################################################################

###############################################################################
#..  Remove "undef" warnings
#
cc_includes     +=
cc_defines      +=
cxx_include     +=
cxx_defines     +=
as_includes     +=
as_defines      +=

###############################################################################
#..     Parse user options
#       Global options already parsed
#       These options extend the global options
#

ifdef OPTIONS

ifneq "$(findstring wall,$(OPTIONS))" ""        # Enable all warnings
USE_WALL        = 1
endif

ifneq "$(findstring list,$(OPTIONS))" ""        # Create Listings
USE_LIST        = 1
endif

endif

###############################################################################
#
#       Extend LIBDIRS with toolset libraries
#       Create a ';' separated list
#       Start with a space separated list
#               May need to change if ARMLIB is to be installed
#               in a path with spaces in it.

LIB         := $(patsubst %,%;,$(LIBDIRS) $(ARMLIB) $(INGEDEV_LIBS) )
export LIB


###############################################################################
#..     C Compiler definition
#

cc_filter := $(wildcard $(GBE_ROOT)/warnings.arm251)
ifdef cc_filter
cc_redirect     = 1
cc_error_filter = $(awk) -f $(GBE_ROOT)/warnings.arm251
endif

################################################################################
# Compiler options
#
# -zz-1                                 # Same as zz0 - sets the zero initialised variable(bss) threshold
#                                       # zz0 forces unitialisaed global to be placed in the ZI degment
# -c                                    # Compiler, but don't link
# -apcs 3/noswst/nofp/interwork         # proceedure call options
#                                       # 3 - is default ( use unknown)
#                                       # /noswst - no software stack checking
#                                       # /nofp  - no frame pointers
#                                       # /interwork - arm/Thumb interworking
# -littleend                            # Generate Little Endian (default)
# -list                                 # Create a listing file
# -g                                    # Enable generation of debug tables
# -zc                                   # Char type is signed
# -zap1                                 # Pointers to Structs aligned to Min
# -zat1                                 # Alignment of top level static objects (default = 1)
# -zas1                                 # Min Byte alignment (default is 4)
# -fa                                   # Check for certain types of data flow anomalies
# -o filename                           # Specifies output file
# -Ospace                               # Optimise for Space (default)
# -Otime                                # Optimise for time
# -O2                                   # Full optimize
#
# -DBSP_LITTLE_ENDIAN=1
# -D__thumb=1

# Standard defines
#
#..
arm_defines     += -D__SOURCE__=\"$(notdir $<)\"

# Standard flags
#
arm_flags       += -c -apcs 3/noswst/nofp/interwork
arm_flags       += -zz-1 -zc -zap1 -zat1 -zas1 -fa -littleend
arm_defines     += -D__thumb=1
arm_defines     += -DBSP_LITTLE_ENDIAN=1

ifdef USE_OPTIMISE                              # default for production
ifdef OPT_MODE
arm_flags       += -O$(OPT_MODE)
endif
arm_flags       += -O2
else
arm_flags       += -O0
endif

ifdef USE_DEBUGINFO                             # default for debug
arm_flags       += -g
arm_defines     += -DDEBUG
else
arm_defines     += -DNDEBUG
endif

ifdef USE_STRICT_ANSI                           # default NO
arm_flags       += -strict
endif

ifdef LEAVETMP                                  # default NO
arm_flags       +=
endif

ifdef USE_LIST
arm_flags       += -list
endif

ifdef USE_WALL
arm_flags       +=
else
endif

# Standard includes
#
#..

arm_includes    +=
arm_includes    += $(ARM_INCLUDES)              # From Toolset Defs

###############################################################################
#..     C Compiler definition
#
cc              = $(CC_PRE) $(compiler)
cc_init         =
cc_o_switch     = -o $@
cc_source       = $<
cc_flags        = \
                $(patsubst %,%,$(CFLAGS)) \
                $(patsubst %,%,$(arm_flags)) \
                $(patsubst %,%,$(arm_defines)) \
                $(patsubst %,-D%,$(cc_defines)) \
                $(patsubst %,-I %,$(INCDIRS)) \
                $(patsubst %,-I %,$(cc_includes)) \
                $(patsubst %,-I %,$(arm_includes))
cc_term         =

define cc_pre
        @echo '[$<] compiling..'
endef

cc_post =

###############################################################################
#..     C++ Compiler definition
#
cxx             = $(CC_PRE) $(compiler)
cxx_init        =
cxx_o_switch    = -o $@
cxx_source      = $<
cxx_flags       = \
                $(patsubst %,%,$(CXXFLAGS)) \
                $(patsubst %,%,$(arm_flags)) \
                $(patsubst %,%,$(arm_defines)) \
                $(patsubst %,-d%,$(cxx_defines)) \
                $(patsubst %,-I %,$(INCDIRS)) \
                $(patsubst %,-I %,$(cxx_includes)) \
                $(patsubst %,-I %,$(arm_includes))

define cxx_pre
        @echo '[$<] compiling..'
endef

define cxx_post
endef

###############################################################################
#..     C/C++ dependencies
#
ccdep           = $(XX_PRE) $(GBE_BIN)/mkdepend
ccdep_init      =
ccdep_o_switch  = -f -
ccdep_flags     = -MM -b -We -p '$$(OBJDIR)/' -o ".$(o)"
ccdep_source    = $(filter %.c %.cc %.cpp, $+) > $@ 2> $(OBJDIR)/depend.err

ccdep_flags     += \
                $(patsubst %,%,$(CFLAGS)) \
                $(patsubst %,%,$(arm_depend)) \
                $(patsubst %,%,$(arm_defines)) \
                $(patsubst %,-D%,$(cc_defines)) \
                $(patsubst %,-I %,$(INCDIRS)) \
                $(patsubst %,-I %,$(cc_includes)) \
                $(patsubst %,-Y %,$(arm_includes))
ccdep_pre       =
ccdep_post      =

###############################################################################
#..     Linker definition
#
ld              = $(CC_PRE) $(linker)
ld_cmdfile      = $(subst /,\\,$(basename $@).ld)
ld_flags        =
ld_file_flags   =
ld_o_switch     = -output $@ -via $(ld_cmdfile)
ld_term         =

define ld_pre
        $(AA_PRE)$(cmdfile) -wkWeo$(ld_cmdfile) \
                "$(ld_file_flags) $($(notdir $(basename $@))_ld)"; \
        echo '[$@] Linking..';\
        $(call show_cmdfile,$(ld_cmdfile))
endef

ifndef LEAVETMP
define ld_post
        @$(rm) -f $(ld_cmdfile)
endef
else
define ld_post
endef
endif

################################################################################
#       Library dependency file generation
#       Use cmdfile to create a file that will be included in this makefile
#       The generated file will contain library path names that can only be
#       calculated on the fly
#
define LDDEPEND
        $(AA_PRE)$(cmdfile) -wkWeo$(@) "$($(DPLIST))"
endef

################################################################################
#..     Archiver Definitions
#
#..     Archiver
#
ar              = $(XX_PRE) $(librarian)
ar_init         =
ar_cmdfile      = $(basename $@).ar
ar_flags        =
ar_o_switch     = -v $(ar_cmdfile)

define ar_pre
        $(XX_PRE) $(echo) '[$@] Creating library archive..' ; \
        $(rm) -f $@ ;\
        $(cmdfile) -ko$(ar_cmdfile) \
                -c $@\\n\
                $(patsubst %,%\\n,$(filter %.o, $^));\
        $(call show_cmdfile,$(ar_cmdfile))
                
endef

ifndef LEAVETMP
define ar_post
        @$(rm) -f $(ar_cmdfile)
endef
else
define ar_post
endef
endif


################################################################################
#..     Archive Merge
#       The archive tool can directly merge libaries
#
armerge         = $(XX_PRE) $(GBE_TOOLS)/armerge
armerge_init    =
armerge_flags   = -d $(MLIBDIR) -t unix -a $(librarian)
armerge_o_switch= $@ $^

define armerge_pre
        @$(echo) '[$@] Creating a Merged library..' ; \
        $(rm) -f $@
endef

armerge_post         =

###############################################################################
#..     Assembler definition
#
#
as              = $(XX_PRE) $(assembler)
as_init         =
as_o_switch     = -o $@
as_source       = $<

asm_flags       += -16
asm_flags       += -apcs /interwork
asm_flags       += -fpu none

asm_flags    += $(ASFLAGS)

ifdef as_defines
#asm_flags    += $(addprefix -D,$(as_defines))
endif

ifdef USE_DEBUGINFO
#asm_flags       += -DDEBUG
asm_flags       += -g
else
#asm_flags       += -DNDEBUG
endif

as_flags        = $(asm_flags)
ifdef as_includes
as_flags       += "-I$(subst $(space),;,$(strip $(as_includes)))"
endif

as_flags       += $(patsubst %,-I%,$(INCDIRS))

ifdef USE_LIST
as_flags       += -list $(addsuffix .lst, $(basename $(@F)))
endif

ifdef USE_WALL
as_flags        +=
else
as_flags        += -nowarn
endif

define as_pre
    @$(echo) '[$<] Assembling file..'
endef

define as_post
endef