litex/misoc/software/common.mak

TARGET_PREFIX=$(TRIPLE)-

RM ?= rm -f
PYTHON ?= python3

ifeq ($(CLANG),1)
CC_normal      := clang -target $(TRIPLE) -integrated-as
CX_normal      := clang++ -target $(TRIPLE) -integrated-as
else
CC_normal      := $(TARGET_PREFIX)gcc
CX_normal      := $(TARGET_PREFIX)g++
endif
AR_normal      := $(TARGET_PREFIX)ar
LD_normal      := $(TARGET_PREFIX)ld
OBJCOPY_normal := $(TARGET_PREFIX)objcopy

CC_quiet      = @echo " CC      " $@ && $(CC_normal)
CX_quiet      = @echo " CX      " $@ && $(CX_normal)
AR_quiet      = @echo " AR      " $@ && $(AR_normal)
LD_quiet      = @echo " LD      " $@ && $(LD_normal)
OBJCOPY_quiet = @echo " OBJCOPY " $@ && $(OBJCOPY_normal)

ifeq ($(V),1)
	CC = $(CC_normal)
	CX = $(CX_normal)
	AR = $(AR_normal)
	LD = $(LD_normal)
	OBJCOPY = $(OBJCOPY_normal)
else
	CC = $(CC_quiet)
	CX = $(CX_quiet)
	AR = $(AR_quiet)
	LD = $(LD_quiet)
	OBJCOPY = $(OBJCOPY_quiet)
endif

# Toolchain options
#
INCLUDES = -I$(MISOC_DIRECTORY)/software/include/base -I$(MISOC_DIRECTORY)/software/include -I$(MISOC_DIRECTORY)/common -I$(BUILDINC_DIRECTORY)
COMMONFLAGS = -Os $(CPUFLAGS) -fomit-frame-pointer -Wall -fno-builtin -nostdinc $(INCLUDES)
CFLAGS = $(COMMONFLAGS) -fexceptions -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes
CXXFLAGS = $(COMMONFLAGS) -std=c++11 -I$(MISOC_DIRECTORY)/software/include/basec++ -fexceptions -fno-rtti -ffreestanding
LDFLAGS = -nostdlib -nodefaultlibs -L$(BUILDINC_DIRECTORY)

# compile and generate dependencies, based on
# http://scottmcpeak.com/autodepend/autodepend.html

define compilexx
$(CX) -c $(CXXFLAGS) $(1) $< -o $@
endef

define compile
$(CC) -c $(CFLAGS) $(1) $< -o $@
endef

define assemble
$(CC) -c $(CFLAGS) -o $@ $<
endef
common.mak: use clang/clang++ to compile C/C++ sources. Note that -integrated-as is not active by default on OR1K, so we're still shelling out to binutils to assemble. It is not yet possible to build everything using -integrated-as. 2015-07-25 20:28:37 -04:00			`TARGET_PREFIX=$(TRIPLE)-`
Copy some software code from the original Milkymist SoC. Libbase should keep its RAM usage to a minimum as it is meant to be executed before the SDRAM is up and running. (Having lots of code is OK though as we XIP from the flash) 2012-02-03 06:08:17 -05:00
Some Makefile love 2013-05-10 16:30:28 -04:00			`RM ?= rm -f`
software/common.mak: use PYTHON env var 2015-07-31 06:31:04 -04:00			`PYTHON ?= python3`
Some Makefile love 2013-05-10 16:30:28 -04:00
Switch to -fPIC. Using -fPIC for everything allows to link the MiSoC static libraries both into static images such as the BIOS as well as into shared libraries. 2015-07-26 09:06:48 -04:00			`ifeq ($(CLANG),1)`
Pass -integrated-as to clang. This avoids misdetection of target assembler by clang. 2015-07-28 04:51:28 -04:00			`CC_normal := clang -target $(TRIPLE) -integrated-as`
			`CX_normal := clang++ -target $(TRIPLE) -integrated-as`
Don't use clang for anything except or1k. 2015-07-26 03:00:58 -04:00			`else`
			`CC_normal := $(TARGET_PREFIX)gcc`
			`CX_normal := $(TARGET_PREFIX)g++`
			`endif`
common.mak: use clang/clang++ to compile C/C++ sources. Note that -integrated-as is not active by default on OR1K, so we're still shelling out to binutils to assemble. It is not yet possible to build everything using -integrated-as. 2015-07-25 20:28:37 -04:00			`AR_normal := $(TARGET_PREFIX)ar`
			`LD_normal := $(TARGET_PREFIX)ld`
software: go back to GCC 2013-02-16 17:41:42 -05:00			`OBJCOPY_normal := $(TARGET_PREFIX)objcopy`
Copy some software code from the original Milkymist SoC. Libbase should keep its RAM usage to a minimum as it is meant to be executed before the SDRAM is up and running. (Having lots of code is OK though as we XIP from the flash) 2012-02-03 06:08:17 -05:00
common.mak: use clang/clang++ to compile C/C++ sources. Note that -integrated-as is not active by default on OR1K, so we're still shelling out to binutils to assemble. It is not yet possible to build everything using -integrated-as. 2015-07-25 20:28:37 -04:00			`CC_quiet = @echo " CC " $@ && $(CC_normal)`
			`CX_quiet = @echo " CX " $@ && $(CX_normal)`
			`AR_quiet = @echo " AR " $@ && $(AR_normal)`
			`LD_quiet = @echo " LD " $@ && $(LD_normal)`
			`OBJCOPY_quiet = @echo " OBJCOPY " $@ && $(OBJCOPY_normal)`
Copy some software code from the original Milkymist SoC. Libbase should keep its RAM usage to a minimum as it is meant to be executed before the SDRAM is up and running. (Having lots of code is OK though as we XIP from the flash) 2012-02-03 06:08:17 -05:00
			`ifeq ($(V),1)`
software: run the assembler ourselves to prevent future time wastage due to breakage of our custom Clang toolchain 2013-01-10 11:20:31 -05:00			`CC = $(CC_normal)`
software/common.mak: add C++ definitions 2013-03-24 11:11:53 -04:00			`CX = $(CX_normal)`
software: run the assembler ourselves to prevent future time wastage due to breakage of our custom Clang toolchain 2013-01-10 11:20:31 -05:00			`AR = $(AR_normal)`
			`LD = $(LD_normal)`
			`OBJCOPY = $(OBJCOPY_normal)`
Copy some software code from the original Milkymist SoC. Libbase should keep its RAM usage to a minimum as it is meant to be executed before the SDRAM is up and running. (Having lots of code is OK though as we XIP from the flash) 2012-02-03 06:08:17 -05:00			`else`
software: run the assembler ourselves to prevent future time wastage due to breakage of our custom Clang toolchain 2013-01-10 11:20:31 -05:00			`CC = $(CC_quiet)`
software/common.mak: add C++ definitions 2013-03-24 11:11:53 -04:00			`CX = $(CX_quiet)`
software: run the assembler ourselves to prevent future time wastage due to breakage of our custom Clang toolchain 2013-01-10 11:20:31 -05:00			`AR = $(AR_quiet)`
			`LD = $(LD_quiet)`
			`OBJCOPY = $(OBJCOPY_quiet)`
Copy some software code from the original Milkymist SoC. Libbase should keep its RAM usage to a minimum as it is meant to be executed before the SDRAM is up and running. (Having lots of code is OK though as we XIP from the flash) 2012-02-03 06:08:17 -05:00			`endif`

			`# Toolchain options`
			`#`
basic out-of-tree build support (OK on PPro) 2015-09-28 08:33:37 -04:00			`INCLUDES = -I$(MISOC_DIRECTORY)/software/include/base -I$(MISOC_DIRECTORY)/software/include -I$(MISOC_DIRECTORY)/common -I$(BUILDINC_DIRECTORY)`
			`COMMONFLAGS = -Os $(CPUFLAGS) -fomit-frame-pointer -Wall -fno-builtin -nostdinc $(INCLUDES)`
common.mak: Pass -fexceptions to clang and clang++. This results in generation of .eh_frame sections. These sections can be discarded during final linking, or included if exception handling is desired. For exception handling to work, all sources must be built with -fexceptions. 2015-07-25 20:30:21 -04:00			`CFLAGS = $(COMMONFLAGS) -fexceptions -Wstrict-prototypes -Wold-style-definition -Wmissing-prototypes`
basic out-of-tree build support (OK on PPro) 2015-09-28 08:33:37 -04:00			`CXXFLAGS = $(COMMONFLAGS) -std=c++11 -I$(MISOC_DIRECTORY)/software/include/basec++ -fexceptions -fno-rtti -ffreestanding`
			`LDFLAGS = -nostdlib -nodefaultlibs -L$(BUILDINC_DIRECTORY)`
software: dependencies the Werner way 2012-02-03 06:25:55 -05:00
			`# compile and generate dependencies, based on`
			`# http://scottmcpeak.com/autodepend/autodepend.html`

software/makefiles: remove dependency system, make all always a phony target 2015-11-03 11:31:53 -05:00			`define compilexx`
			`$(CX) -c $(CXXFLAGS) $(1) $< -o $@`
software/common.mak: add C++ definitions 2013-03-24 11:11:53 -04:00			`endef`

software/makefiles: remove dependency system, make all always a phony target 2015-11-03 11:31:53 -05:00			`define compile`
			`$(CC) -c $(CFLAGS) $(1) $< -o $@`
software: run the assembler ourselves to prevent future time wastage due to breakage of our custom Clang toolchain 2013-01-10 11:20:31 -05:00			`endef`

			`define assemble`
software/makefiles: remove dependency system, make all always a phony target 2015-11-03 11:31:53 -05:00			`$(CC) -c $(CFLAGS) -o $@ $<`
software: more flexible compilation target 2012-05-31 14:17:33 -04:00			`endef`