Compiler/AM6548: How to modify the rules_ti_cgt_arm.mk to support for building .cpp files?

Haining Zhi

Part Number: AM6548

Tool/software: TI C/C++ Compiler

Hi,

I have a question about makefile in PDK: pdk_am65xx_1_0_7/packages/ti/build/makerules/rules_ti_cgt_arm.mk.

In this make file only the .c and .asm files can be built, but not the .cpp files. So if I want include this makefile to build my .cpp files in my own project for R5F, it will cause compile errors. There is a variable CPLUSPLUS_BUILD. But it does not help by recognizing the .cpp files.

Is it possible to add the rules for .cpp files, just like what in pdk_am65xx_1_0_7/packages/ti/build/makerules/rules_a53.mk has done?

I've tried but still got errors. And I'm not sure about it. Is there any already tested cgt-arm makefile with support for .cpp file for R5F?

over 5 years ago

0 Garrett Ding over 5 years ago

TI__Mastermind 43296 points

Haining,

Have you tried to add --c++14 option in rules_ti_cgt_arm.mk, i.e update COMPILEMODE as below?

line 177:

ifeq ($(CPLUSPLUS_BUILD), yes)
COMPILEMODE = -fg --c++14
endif

Refer to

http://downloads.ti.com/docs/esd/SPNU151/#viewer?document=%257B%2522href%2522%253A%2522%252Fdocs%252Fesd%252FSPNU151%2522%257D&url=invoking-the-c-c-compiler-stdz0588355.html%23STDZ0588355

Regards,

Garrett

0 Haining Zhi over 5 years ago in reply to Garrett Ding

Prodigy 105 points

Hi Garrett,

the Problem is that the files with .cpp extension cannot be handled by the makefile for Cortex R5F. Of cource the c++ file might be named with .c and compiled with cpp options. But that is forbidden by the most of coding guidelines. So I just modified the

Fullscreen rules_ti_cgt_arm.mk.txt Download

#
# Copyright (c) 2013-2016, Texas Instruments Incorporated
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# *  Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
# *  Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# *  Neither the name of Texas Instruments Incorporated nor the names of
#    its contributors may be used to endorse or promote products derived
#    from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

# Filename: rules_ti_cgt_arm.mk
#
# Make rules for TI ARM CGT - This file has all the common rules and defines
# required for Cortex-M4/R5F ISA
#
# This file needs to change when:
#     1. Code generation tool chain changes (currently it uses TI ARM CGT)
#     2. Internal switches (which are normally not touched) has to change
#     3. XDC specific switches change
#     4. a rule common for M4/R5F ISA has to be added or modified

# Set compiler/archiver/linker commands and include paths
CODEGEN_INCLUDE = $(TOOLCHAIN_PATH_$(CGT_ISA))/include
CC = $(TOOLCHAIN_PATH_$(CGT_ISA))/bin/armcl
AR = $(TOOLCHAIN_PATH_$(CGT_ISA))/bin/armar
LNK = $(TOOLCHAIN_PATH_$(CGT_ISA))/bin/armcl
STRP = $(TOOLCHAIN_PATH_$(CGT_ISA))/bin/armstrip
SIZE = $(TOOLCHAIN_PATH_$(CGT_ISA))/bin/armofd

# Derive a part of RTS Library name based on ENDIAN: little/big
ifeq ($(ENDIAN),little)
  RTSLIB_ENDIAN = le
else
  RTSLIB_ENDIAN = be
endif

# Derive compiler switch and part of RTS Library name based on FORMAT: COFF/ELF
ifeq ($(FORMAT),COFF)
  CSWITCH_FORMAT = ti_arm9_abi
  RTSLIB_FORMAT = tiarm9
endif
ifeq ($(FORMAT),ELF)
  CSWITCH_FORMAT = eabi
  RTSLIB_FORMAT = eabi
endif

LNKFLAGS_INTERNAL_COMMON += -O4
LNKFLAGS_INTERNAL_COMMON += --run_linker


# Internal CFLAGS - normally doesn't change
ifeq ($(CGT_ISA),$(filter $(CGT_ISA), M4 R5 M3))
  CFLAGS_INTERNAL = -c -qq -pdsw225 --endian=$(ENDIAN) -mv7$(CGT_ISA) --abi=$(CSWITCH_FORMAT) -eo.$(OBJEXT) -ea.$(ASMEXT) --symdebug:dwarf --embed_inline_assembly
  ifeq ($(CGT_ISA),$(filter $(CGT_ISA), R5))
    CFLAGS_INTERNAL += --float_support=vfpv3d16
    # Enabling thumb2 mode 
    CFLAGS_INTERNAL += --code_state=16
  else
    CFLAGS_INTERNAL += --float_support=vfplib
  endif
else ifeq ($(CGT_ISA), Arm9)
  CFLAGS_INTERNAL = -c -qq -pdsw225 --endian=$(ENDIAN) -mv5e --float_support=vfplib --abi=$(CSWITCH_FORMAT) -eo.$(OBJEXT) -ea.$(ASMEXT) --symdebug:dwarf --embed_inline_assembly
endif
ifeq ($(TREAT_WARNINGS_AS_ERROR), yes)
  CFLAGS_INTERNAL += --emit_warnings_as_errors
  LNKFLAGS_INTERNAL_COMMON += --emit_warnings_as_errors
endif
CFLAGS_DIROPTS = -fr=$(OBJDIR) -fs=$(OBJDIR)

ifeq ($(CGT_ISA),$(filter $(CGT_ISA),R5))

ifeq ($(XDC_DISABLE_THUMB_MODE),yes)
 XDC_TARGET_NAME=$(CGT_ISA)F
else
 XDC_TARGET_NAME=$(CGT_ISA)Ft
endif

 ifneq ($(EXTERNAL_LNKCMD_FILE_LOCAL),)
 EXTERNAL_LNKCMD_FILE = $(EXTERNAL_LNKCMD_FILE_LOCAL)
 else
 EXTERNAL_LNKCMD_FILE = $(CONFIG_BLD_LNK_r5f)
 endif

else
 XDC_TARGET_NAME=$(CGT_ISA)
endif

XDC_HFILE_NAME = $(basename $(notdir $(XDC_CFG_FILE_$(CORE))))

ifneq ($(PEXT_BIOS),)
XDC_HFILE_EXT = $(PEXT_BIOS)
else
XDC_HFILE_EXT = p$(FORMAT_EXT)$(CGT_EXT)
endif

# CFLAGS based on profile selected
ifeq ($(BUILD_PROFILE_$(CORE)), debug)
 LNKFLAGS_INTERNAL_BUILD_PROFILE =
 CFLAGS_XDCINTERNAL = -Dxdc_target_name__=$(XDC_TARGET_NAME) -Dxdc_target_types__=ti/targets/arm/elf/std.h -Dxdc_bld__profile_debug
 CFLAGS_INTERNAL += -D_DEBUG_=1
 ifndef MODULE_NAME
  CFLAGS_XDCINTERNAL += -Dxdc_cfg__header__='$(CONFIGURO_DIR)/package/cfg/$(XDC_HFILE_NAME)_$(XDC_HFILE_EXT).h'
 endif

endif
ifeq ($(BUILD_PROFILE_$(CORE)), release)
 ifeq ($(CGT_ISA),$(filter $(CGT_ISA), M4 R5 M3))
   LNKFLAGS_INTERNAL_BUILD_PROFILE = -qq --diag_warning=225 --diag_suppress=23000 $(LNKFLAGS_GLOBAL_$(CORE))
   ifeq ($(CGT_ISA),$(filter $(CGT_ISA), R5))
     CFLAGS_INTERNAL += -ms -O4 -s
   else
     CFLAGS_INTERNAL += -ms -O4 -op0 -os --optimize_with_debug --inline_recursion_limit=20
   endif
   CFLAGS_XDCINTERNAL = -Dxdc_target_name__=$(XDC_TARGET_NAME) -Dxdc_target_types__=ti/targets/arm/elf/std.h -Dxdc_bld__profile_release
   ifndef MODULE_NAME
     CFLAGS_XDCINTERNAL += -Dxdc_cfg__header__='$(CONFIGURO_DIR)/package/cfg/$(XDC_HFILE_NAME)_$(XDC_HFILE_EXT).h'
   endif
 endif
 ifeq ($(CGT_ISA), Arm9)
        LNKFLAGS_INTERNAL_BUILD_PROFILE = -qq --diag_warning=225 --diag_suppress=23000 $(LNKFLAGS_GLOBAL_$(CORE))
        CFLAGS_INTERNAL += -ms -oe -O3 -op0 -os --optimize_with_debug --inline_recursion_limit=20
	CFLAGS_XDCINTERNAL = -Dxdc_target_name__=$(XDC_TARGET_NAME) -Dxdc_target_types__=ti/targets/arm/elf/std.h -Dxdc_bld__profile_release
	ifndef MODULE_NAME
	  CFLAGS_XDCINTERNAL += -Dxdc_cfg__header__='$(CONFIGURO_DIR)/package/cfg/$(XDC_HFILE_NAME)_$(XDC_HFILE_EXT).h'
	endif
 endif
endif

# Assemble CFLAGS from all other CFLAGS definitions
_CFLAGS = $(CFLAGS_GLOBAL_$(CORE)) $(CFLAGS_INTERNAL) $(CFLAGS_LOCAL_COMMON) $(CFLAGS_LOCAL_$(CORE)) $(CFLAGS_COMP_COMMON)
ifeq ($($(MODULE_NAME)_BOARD_DEPENDENCY),yes)
  _CFLAGS += $(CFLAGS_LOCAL_$(BOARD)) $(CFLAGS_GLOBAL_$(BOARD))
else
  ifeq ($($(APP_NAME)_BOARD_DEPENDENCY),yes)
    _CFLAGS += $(CFLAGS_LOCAL_$(BOARD)) $(CFLAGS_GLOBAL_$(BOARD))
  else
    _CFLAGS += $(CFLAGS_LOCAL_$(SOC)) $(CFLAGS_GLOBAL_$(SOC))
  endif
endif
ifneq ($(XDC_CFG_FILE_$(CORE)),)
  _CFLAGS += $(CFLAGS_XDCINTERNAL)
else
  ifneq ($(findstring xdc, $(INCLUDE_EXTERNAL_INTERFACES)),)
      _CFLAGS += $(CFLAGS_XDCINTERNAL)
  endif
endif

# For TPR12, fore enum type to int to be compatible with DSP
ifeq ($(SOC),$(filter $(SOC), tpr12))
  _CFLAGS += --enum_type=int
endif

# Decide the compile mode
COMPILEMODE = -fc
ifeq ($(CPLUSPLUS_BUILD), yes)
  COMPILEMODE = -fg
endif

# Object file creation
# The first $(CC) generates the dependency make files for each of the objects
# The second $(CC) compiles the source to generate object
$(OBJ_PATHS): $(OBJDIR)/%.$(OBJEXT): %.c $(GEN_FILE) | $(OBJDIR) $(DEPDIR)
	$(ECHO) \# Compiling $(PRINT_MESSAGE): $<
	$(CC) -ppd=$(DEPFILE).P $(_CFLAGS) $(INCLUDES) $(CFLAGS_DIROPTS) $(COMPILEMODE) $<
	$(CC) $(_CFLAGS) $(INCLUDES) $(CFLAGS_DIROPTS) $(COMPILEMODE) $<

$(OBJ_PATHS_CPP): $(OBJDIR)/%.$(OBJEXT): %.cpp $(GEN_FILE) | $(OBJDIR) $(DEPDIR)
	$(ECHO) \# Compiling $(PRINT_MESSAGE): $<
	$(CC) -ppd=$(DEPFILE).P $(_CFLAGS) $(INCLUDES) $(CFLAGS_DIROPTS) $(COMPILEMODE) $<
	$(CC) $(_CFLAGS) $(INCLUDES) $(CFLAGS_DIROPTS) $(COMPILEMODE) $<

#TODO: Check ASMFLAGS if really required
ASMFLAGS = -me -g --code_state=16 --diag_warning=225

# Object file creation
$(OBJ_PATHS_ASM): $(OBJDIR)/%.$(OBJEXT): %.asm $(GEN_FILE) | $(OBJDIR) $(DEPDIR)
	$(ECHO) \# Compiling $(PRINT_MESSAGE): $<
	$(CC) -ppd=$(DEPFILE).P $(_CFLAGS) $(INCLUDES) $(CFLAGS_DIROPTS) -fa $<
	$(CC) $(_CFLAGS) $(INCLUDES) $(CFLAGS_DIROPTS) -fa $<

$(PACKAGE_PATHS): $(PACKAGEDIR)/%: %
	$(ECHO) \# Copying to $(PACKAGE_RELPATH)/$($(APP_NAME)$(MODULE_NAME)_RELPATH)/$<
	$(MKDIR) -p $(PACKAGE_ROOT)/$($(APP_NAME)$(MODULE_NAME)_RELPATH)
	$(CP) --parents -rf $< $(PACKAGE_ROOT)/$($(APP_NAME)$(MODULE_NAME)_RELPATH)

# Archive flags - normally doesn't change
ARFLAGS = rq

# Archive/library file creation
$(LIBDIR)/$(LIBNAME).$(LIBEXT) : $(OBJ_PATHS_ASM) $(OBJ_PATHS) $(OBJ_PATHS_CPP) $(GEN_FILE) | $(LIBDIR)
	$(ECHO) \#
	$(ECHO) \# Archiving $(PRINT_MESSAGE) into $@ ...
	$(ECHO) \#
	$(AR) $(ARFLAGS) $@ $(OBJ_PATHS_ASM) $(OBJ_PATHS) $(OBJ_PATHS_CPP)

$(LIBDIR)/$(LIBNAME).$(LIBEXT)_size: $(LIBDIR)/$(LIBNAME).$(LIBEXT)
	$(ECHO) \#
	$(ECHO) \# Computing sectti size $(PRINT_MESSAGE) info into $@.txt ...
	$(ECHO) \#
	$(SIZE) -x $(subst _size,,$@) > $@temp
	$(SECTTI) $@temp > $@.txt
	$(RM)   $@temp

# Linker options and rules
LNKFLAGS_INTERNAL_COMMON += -w -q -u _c_int00

ifeq ($(BOARD),$(filter $(BOARD), qtJ7))
  LNKFLAGS_INTERNAL_COMMON += -cr --ram_model
else
  LNKFLAGS_INTERNAL_COMMON += -c
endif

ifeq ($(CGT_ISA), R5)
  LNKFLAGS_INTERNAL_COMMON += -mv7R5
  #--diag_suppress=10063 supresses 'warning: entry point other than _c_int00 specified'
  LNKFLAGS_INTERNAL_COMMON += --diag_suppress=10063
endif

# Assemble Linker flags from all other LNKFLAGS definitions
_LNKFLAGS = $(LNKFLAGS_INTERNAL_COMMON) $(LNKFLAGS_INTERNAL_BUILD_PROFILE) $(LNKFLAGS_GLOBAL_$(CORE)) $(LNKFLAGS_LOCAL_COMMON) $(LNKFLAGS_LOCAL_$(CORE))

# Path of the RTS library - normally doesn't change for a given tool-chain
#Let the linker choose the required library
RTSLIB_PATH = $(CGT_PATH)/lib/libc.a

LNK_LIBS = $(addprefix -l,$(LIB_PATHS))
LNK_LIBS += $(addprefix -l,$(EXT_LIB_PATHS))

# Linker - to create executable file
ifeq ($(LOCAL_APP_NAME),)
 EXE_NAME = $(BINDIR)/$(APP_NAME)_$(CORE)_$(BUILD_PROFILE_$(CORE)).$(EXEEXT)
 EXE_STRIP_NAME = $(BINDIR)/$(APP_NAME)_$(CORE)_$(BUILD_PROFILE_$(CORE))_strip.$(EXEEXT)
else
 EXE_NAME = $(BINDIR)/$(LOCAL_APP_NAME)_$(BUILD_PROFILE_$(CORE)).$(EXEEXT)
 EXE_STRIP_NAME = $(BINDIR)/$(LOCAL_APP_NAME)_$(BUILD_PROFILE_$(CORE))_strip.$(EXEEXT)
endif

NUM_PROCS = 1

ifeq ($(OS),Windows_NT)
  NUM_PROCS = $(NUMBER_OF_PROCESSORS)
else
  NUM_PROCS = $(shell grep -c ^processor /proc/cpuinfo)
endif

ifneq ($(findstring mcu,$(CORE)),)
RTSLIB_NAME = rtsv7R4_T_le_v3D16_eabi.lib
BUILD_LIB_ONCE = $(CGT_PATH)/lib/$(RTSLIB_NAME)
$(BUILD_LIB_ONCE):
	$(ECHO) \# $@ not found, building  $@ ...
	$(CGT_PATH)/lib/mklib --pattern=$(RTSLIB_NAME) --parallel=$(NUM_PROCS) --compiler_bin_dir=$(CGT_PATH)/bin
endif

ifneq ($(XDC_CFG_FILE_$(CORE)),)
$(EXE_NAME) : $(OBJ_PATHS_ASM) $(OBJ_PATHS) $(OBJ_PATHS_CPP) $(LIB_PATHS) $(LNKCMD_FILE) $(OBJDIR)/$(CFG_COBJ_XDC) $(BUILD_LIB_ONCE)
	$(CP) $(CONFIGURO_DIR)/package/cfg/*.rov.xs $(BINDIR)
else
$(EXE_NAME) : $(OBJ_PATHS_ASM) $(OBJ_PATHS) $(OBJ_PATHS_CPP) $(LIB_PATHS) $(LNKCMD_FILE) $(BUILD_LIB_ONCE)
endif
	$(ECHO) \# Linking into $(EXE_NAME)...
	$(ECHO) \#
ifneq ($(XDC_CFG_FILE_$(CORE)),)
	$(CP) $(OBJDIR)/$(CFG_COBJ_XDC) $(CONFIGURO_DIR)/package/cfg
  ifeq ($(BUILD_PROFILE_$(CORE)),whole_program_debug)
	$(LNK) $(_LNKFLAGS) $(OBJ_PATHS_ASM) $(OBJ_PATHS) $(OBJDIR)/$(CFG_COBJ_XDC) $(LNKCMD_FILE) $(EXTERNAL_LNKCMD_FILE) -o $@ -m $@.map $(LNK_LIBS) $(RTSLIB_PATH)
  else
	$(LNK) $(_LNKFLAGS) $(OBJ_PATHS_ASM) $(OBJ_PATHS) $(LNKCMD_FILE) $(EXTERNAL_LNKCMD_FILE) -o $@ -m $@.map $(LNK_LIBS) $(RTSLIB_PATH)
  endif
else
	$(LNK) $(_LNKFLAGS) $(OBJ_PATHS_ASM) $(OBJ_PATHS) $(LNKCMD_FILE) $(EXTERNAL_LNKCMD_FILE) -o $@ -m $@.map $(LNK_LIBS) $(RTSLIB_PATH)
endif
	$(ECHO) \#
	$(ECHO) \# $@ created.
	$(ECHO) \#
ifeq ($(BUILD_PROFILE_$(CORE)), release)
	$(ECHO) \# Generating stripped image into $(EXE_STRIP_NAME)...
	$(ECHO) \#
	$(STRP) -p $(EXE_NAME) -o $(EXE_STRIP_NAME)
endif
# XDC specific - assemble XDC-Configuro command
ifeq ($(BUILD_PROFILE_$(CORE)),prod_release)
  CONFIGURO_BUILD_PROFILE = release
else
  CONFIGURO_BUILD_PROFILE = $(BUILD_PROFILE_$(CORE))
endif

_XDC_GREP_STRING = \"$(XDC_GREP_STRING)\"
EGREP_CMD = $(EGREP) -ivw $(XDC_GREP_STRING) $(XDCLNKCMD_FILE)

ifeq ($(OS),Windows_NT)
  EVERYONE = $(word 1,$(shell whoami -groups | findstr "S-1-1-0"))
endif

# Invoke configuro for the rest of the components
#  NOTE: 1. String handling is having issues with various make versions when the
#           cammand is directly tried to be given below. Hence, as a work-around,
#           the command is re-directed to a file (shell or batch file) and then
#           executed
#        2. The linker.cmd file generated, includes the libraries generated by
#           XDC. An egrep to search for these and omit in the .cmd file is added
#           after configuro is done
xdc_configuro : $(CFG_C_XDC)
	$(MAKE) $(LNKCMD_FILE)

ifeq ($(DEST_ROOT),)
  XDC_BUILD_ROOT = .
else
  XDC_BUILD_ROOT = $(DEST_ROOT)
endif

ifneq ($(OBJEXT_BIOS),)
# if BIOS' obj extensions are different, xdc generated files's objfiles need to have different extensions as well
CFG_C_XDC_CFLAGS = $(subst -eo.$(OBJEXT),-eo.$(OBJEXT_BIOS),$(_CFLAGS))
else
CFG_C_XDC_CFLAGS = $(_CFLAGS)
endif

$(CFG_C_XDC) $(LNKCMD_FILE) : $(XDC_CFG_FILE_NAME) $(XDC_CFG_UPDATE)
	$(ECHO) \# Invoking configuro...
	$(MKDIR) -p $(XDC_BUILD_ROOT)
	$(xdc_PATH)/xs xdc.tools.configuro --generationOnly -o $(CONFIGURO_DIR) -t $(TARGET_XDC) -p $(PLATFORM_XDC) \
               -r $(CONFIGURO_BUILD_PROFILE) -b $(CONFIG_BLD_XDC_$(ISA)) --ol $(LNKCMD_FILE) $(XDC_CFG_FILE_NAME)
	$(ECHO) \# Configuro done!

ifneq ($(XDC_CFG_FILE_$(CORE)),)
  ifndef MODULE_NAME
$(OBJDIR)/$(CFG_COBJ_XDC) : $(CFG_C_XDC)
	$(ECHO) \# Compiling generated $(CFG_COBJ_XDC)
	$(CC) -ppd=$(DEPFILE).P $(CFG_C_XDC_CFLAGS) $(INCLUDES) $(CFLAGS_DIROPTS) -fc $(CFG_C_XDC)
	$(CC) $(CFG_C_XDC_CFLAGS) $(INCLUDES) $(CFLAGS_DIROPTS) -fc $(CFG_C_XDC)
  endif
endif

# Include dependency make files that were generated by $(CC)
-include $(SRCS:%.c=$(DEPDIR)/%.P)
-include $(SRCS_CPP:%.cpp=$(DEPDIR)/%.P)

# Nothing beyond this point

as that I've found in rule_a53.mk.

now my makefile

Fullscreen 3835.makefile.txt Download

## -------- common makefile -------- ##

ifeq ($(CORE), )
CORE := mcu1_0
endif
BOARD = am65xx_idk
SOC = am65xx
OS = linux
IS_BAREMETAL = no
CPLUSPLUS_BUILD=yes
ifeq ($(BUILD_PROFILE), )
BUILD_PROFILE = release
endif
## -------- host-specific paths -------- ##
                                         ## MODIFY THESE PATHS PER YOUR INSTALLATION
                                         ## WINDOWS HOST -- SURROUND THESE PATHS WITH SINGLE QUOTES (') IF THEY CONTAIN SPACES  

XDC_FLAGS := --xdcpath='$(BIOS_INSTALL_PATH)/packages;$(PDK_INSTALL_PATH)' 

## --------build tools -------- ##
ifeq ($(RULES_MAKE), )
include $(PDK_INSTALL_PATH)/ti/build/Rules.make
else
include $(RULES_MAKE)
endif

## -------- build parameters -------- ##

TARGET = ti.targets.arm.elf.R5F
PLATFORM = ti.platforms.cortexR:AM6548
APP_NAME = bni_master_ng

C_SRC = dummyC.c
C_SRC += GPIO_board.c


CPP_SRC = main.cpp
CPP_SRC += Dummy.cpp
CPP_SRC += Gpio.cpp
CPP_SRC += GPIO_interrupt.cpp

SRCS_COMMON += $(C_SRC)
SRCS_CPP += $(CPP_SRC)

# List all the external components/interfaces, whose interface header files
#  need to be included for this component
INCLUDE_EXTERNAL_INTERFACES = pdk xdc bios

# List all the components required by the application
COMP_LIST_COMMON = csl sciclient board i2c gpio uart osal_tirtos 
XDC_CFG_FILE_$(CORE) = ./bni_master_ng.cfg
EXTERNAL_LNKCMD_FILE_LOCAL = ./bni_master_ng.lds


CFLAGS_LOCAL_COMMON += $(PDK_CFLAGS) -DUSE_BIOS -D$(BOARD) 

$(info -----------------------PDK_CFLAGS is $(PDK_CFLAGS))
$(info -----------------------MAKERULEDIR is $(MAKERULEDIR))
$(info -----------------------ROOTDIR is $(ROOTDIR))
$(info -----------------------ISA is $(ISA))
$(info -----------------------FORMAT is $(FORMAT))
$(info -----------------------TARGET_XDC is $(TARGET_XDC))
$(info -----------------------CORE is $(CORE))

$(info -----------------------CGT_ISA is $(CGT_ISA))
$(info -----------------------XDC_TARGET_NAME is $(XDC_TARGET_NAME))


# Include common make files
ifeq ($(MAKERULEDIR), )
#Makerule path not defined, define this and assume relative path from ROOTDIR
  MAKERULEDIR := $(ROOTDIR)/ti/build/makerules
  export MAKERULEDIR
endif

include $(MAKERULEDIR)/common.mk

can handle .cpp files. But cause the following compile error:

js: "/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/gpio/package.xs", line 122: Error: Library not found: /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/gpio/./lib/am65xx/r5f/release/ti.drv.gpio.aer5ft

My question is how to link .aer5f instead of .aer5ft file? Because in PDK there is only ti.drv.gpio.aer5f built.

build.log

Fullscreen 2630.build.log Download

zhih@zhih-HP-ProDesk-600-G3-MT:~/workspace_ccs/firmware_60/src$ make LIMIT_SOCS=am65xx LIMIT_BOARDS=am65xx_idk PDK_SOC=am65xx SOC=am65xx  BOARD=am65xx_idk CORE=mcu1_0 BUILD_PROFILE=release CPLUSPLUS_BUILD=yes 
+++++++++++++++++ ----------- /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/Rules.make
-----------------------PDK_CFLAGS is  -DBUILD_MCU1_0 -DBUILD_MCU
-----------------------MAKERULEDIR is /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/makerules
-----------------------ROOTDIR is /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages
-----------------------ISA is r5f
-----------------------FORMAT is ELF
-----------------------TARGET_XDC is ti.targets.arm.elf.R5Ft
-----------------------CORE is mcu1_0
-----------------------CGT_ISA is 
-----------------------XDC_TARGET_NAME is 
/bin/mkdir -p /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/little/.deps
/bin/mkdir -p /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release
/bin/mkdir -p /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/little/.deps
/bin/mkdir -p /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro
echo  "*****************"  make  csl sciclient board i2c gpio uart osal_tirtos  
***************** make csl sciclient board i2c gpio uart osal_tirtos
make  csl sciclient board i2c gpio uart osal_tirtos  
make[1]: Verzeichnis „/home/zhih/workspace_ccs/firmware_60/src“ wird betreten
+++++++++++++++++ ----------- /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/Rules.make
-----------------------PDK_CFLAGS is  -DBUILD_MCU1_0 -DBUILD_MCU
-----------------------MAKERULEDIR is /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/makerules
-----------------------ROOTDIR is /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages
-----------------------ISA is r5f
-----------------------FORMAT is ELF
-----------------------TARGET_XDC is ti.targets.arm.elf.R5Ft
-----------------------CORE is mcu1_0
-----------------------CGT_ISA is 
-----------------------XDC_TARGET_NAME is 
make -C /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/csl -fmakefile.mk
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/csl“ wird betreten
make[2]: Für das Ziel „all“ ist nichts zu tun.
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/csl“ wird verlassen
make -C /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/sciclient -fsrc/makefile
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/sciclient“ wird betreten
make[2]: Für das Ziel „all“ ist nichts zu tun.
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/sciclient“ wird verlassen
make -C /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/board -f build/makefile.mk
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/board“ wird betreten
make[2]: Für das Ziel „all“ ist nichts zu tun.
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/board“ wird verlassen
make -C /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/i2c -f build/makefile.mk
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/i2c“ wird betreten
make[2]: Für das Ziel „all“ ist nichts zu tun.
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/i2c“ wird verlassen
make -C /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/gpio -f build/makefile.mk
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/gpio“ wird betreten
make[2]: Für das Ziel „all“ ist nichts zu tun.
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/gpio“ wird verlassen
make -C /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/uart -f build/makefile.mk
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/uart“ wird betreten
make[2]: Für das Ziel „all“ ist nichts zu tun.
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/uart“ wird verlassen
make -C /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/osal -f build/makefile_tirtos.mk
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/osal“ wird betreten
make[2]: Für das Ziel „all“ ist nichts zu tun.
make[2]: Verzeichnis „/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/osal“ wird verlassen
make[1]: Verzeichnis „/home/zhih/workspace_ccs/firmware_60/src“ wird verlassen
make  /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/bin/am65xx/bni_master_ng_mcu1_0_release.xer5f
make[1]: Verzeichnis „/home/zhih/workspace_ccs/firmware_60/src“ wird betreten
+++++++++++++++++ ----------- /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/Rules.make
-----------------------PDK_CFLAGS is  -DBUILD_MCU1_0 -DBUILD_MCU
-----------------------MAKERULEDIR is /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/makerules
-----------------------ROOTDIR is /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages
-----------------------ISA is r5f
-----------------------FORMAT is ELF
-----------------------TARGET_XDC is ti.targets.arm.elf.R5Ft
-----------------------CORE is mcu1_0
-----------------------CGT_ISA is 
-----------------------XDC_TARGET_NAME is 
# Compiling am65xx:mcu1_0:release:bni_master_ng: dummyC.c
/home/zhih/ti/AM65XX_RTOS_SDK/ti-cgt-arm_18.12.5.LTS/bin/armcl -ppd=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/little/.deps/dummyC.P -g -ms -DMAKEFILE_BUILD -c -qq -pdsw225 --endian=little -mv7R5 --abi=eabi -eo.oer5f -ea.ser5f --symdebug:dwarf --embed_inline_assembly --float_support=vfpv3d16 --code_state=16 --emit_warnings_as_errors -ms -O4 -s  -DBUILD_MCU1_0 -DBUILD_MCU -DUSE_BIOS -Dam65xx_idk     -DSOC_AM65XX -Dxdc_target_name__=R5Ft -Dxdc_target_types__=ti/targets/arm/elf/std.h -Dxdc_bld__profile_release -Dxdc_cfg__header__='/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro/package/cfg/bni_master_ng_per5ft.h' -I/home/zhih/ti/AM65XX_RTOS_SDK/ti-cgt-arm_18.12.5.LTS/include -I/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages -I/home/zhih/ti/AM65XX_RTOS_SDK/xdctools_3_55_02_22_core/packages -I/home/zhih/ti/AM65XX_RTOS_SDK/bios_6_76_03_01/packages -fr=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release -fs=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release -fg dummyC.c
/home/zhih/ti/AM65XX_RTOS_SDK/ti-cgt-arm_18.12.5.LTS/bin/armcl -g -ms -DMAKEFILE_BUILD -c -qq -pdsw225 --endian=little -mv7R5 --abi=eabi -eo.oer5f -ea.ser5f --symdebug:dwarf --embed_inline_assembly --float_support=vfpv3d16 --code_state=16 --emit_warnings_as_errors -ms -O4 -s  -DBUILD_MCU1_0 -DBUILD_MCU -DUSE_BIOS -Dam65xx_idk     -DSOC_AM65XX -Dxdc_target_name__=R5Ft -Dxdc_target_types__=ti/targets/arm/elf/std.h -Dxdc_bld__profile_release -Dxdc_cfg__header__='/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro/package/cfg/bni_master_ng_per5ft.h' -I/home/zhih/ti/AM65XX_RTOS_SDK/ti-cgt-arm_18.12.5.LTS/include -I/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages -I/home/zhih/ti/AM65XX_RTOS_SDK/xdctools_3_55_02_22_core/packages -I/home/zhih/ti/AM65XX_RTOS_SDK/bios_6_76_03_01/packages -fr=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release -fs=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release -fg dummyC.c
# Compiling am65xx:mcu1_0:release:bni_master_ng: GPIO_board.c
/home/zhih/ti/AM65XX_RTOS_SDK/ti-cgt-arm_18.12.5.LTS/bin/armcl -ppd=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/little/.deps/GPIO_board.P -g -ms -DMAKEFILE_BUILD -c -qq -pdsw225 --endian=little -mv7R5 --abi=eabi -eo.oer5f -ea.ser5f --symdebug:dwarf --embed_inline_assembly --float_support=vfpv3d16 --code_state=16 --emit_warnings_as_errors -ms -O4 -s  -DBUILD_MCU1_0 -DBUILD_MCU -DUSE_BIOS -Dam65xx_idk     -DSOC_AM65XX -Dxdc_target_name__=R5Ft -Dxdc_target_types__=ti/targets/arm/elf/std.h -Dxdc_bld__profile_release -Dxdc_cfg__header__='/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro/package/cfg/bni_master_ng_per5ft.h' -I/home/zhih/ti/AM65XX_RTOS_SDK/ti-cgt-arm_18.12.5.LTS/include -I/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages -I/home/zhih/ti/AM65XX_RTOS_SDK/xdctools_3_55_02_22_core/packages -I/home/zhih/ti/AM65XX_RTOS_SDK/bios_6_76_03_01/packages -fr=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release -fs=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release -fg GPIO_board.c
/home/zhih/ti/AM65XX_RTOS_SDK/ti-cgt-arm_18.12.5.LTS/bin/armcl -g -ms -DMAKEFILE_BUILD -c -qq -pdsw225 --endian=little -mv7R5 --abi=eabi -eo.oer5f -ea.ser5f --symdebug:dwarf --embed_inline_assembly --float_support=vfpv3d16 --code_state=16 --emit_warnings_as_errors -ms -O4 -s  -DBUILD_MCU1_0 -DBUILD_MCU -DUSE_BIOS -Dam65xx_idk     -DSOC_AM65XX -Dxdc_target_name__=R5Ft -Dxdc_target_types__=ti/targets/arm/elf/std.h -Dxdc_bld__profile_release -Dxdc_cfg__header__='/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro/package/cfg/bni_master_ng_per5ft.h' -I/home/zhih/ti/AM65XX_RTOS_SDK/ti-cgt-arm_18.12.5.LTS/include -I/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages -I/home/zhih/ti/AM65XX_RTOS_SDK/xdctools_3_55_02_22_core/packages -I/home/zhih/ti/AM65XX_RTOS_SDK/bios_6_76_03_01/packages -fr=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release -fs=/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release -fg GPIO_board.c
# Invoking configuro...
/bin/mkdir -p /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary
/home/zhih/ti/AM65XX_RTOS_SDK/xdctools_3_55_02_22_core/xs xdc.tools.configuro --generationOnly -o /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro -t ti.targets.arm.elf.R5Ft -p "ti.platforms.cortexR:AM65X" \
               -r release -b /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/am65xx/config_am65xx_r5f.bld --ol /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro/linker_mod.cmd ./bni_master_ng.cfg
making package.mak (because of package.bld) ...
generating interfaces for package configuro (because package/package.xdc.inc is older than package.xdc) ...
configuring bni_master_ng.xer5ft from package/cfg/bni_master_ng_per5ft.cfg ...
BUILD_PROFILE: release
	 SoC Type is 
	 SoC Type is am65xx
generating custom ti.sysbios library makefile ... 
	System environment LIBDIR variable defined : ./lib
js: "/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/gpio/package.xs", line 122: Error: 	Library not found: /home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/gpio/./lib/am65xx/r5f/release/ti.drv.gpio.aer5ft
gmake: *** [package.mak:203: package/cfg/bni_master_ng_per5ft.xdl] Fehler 1
gmake: *** Datei „package/cfg/bni_master_ng_per5ft.xdl“ wird gelöscht
gmake: *** [package/cfg/bni_master_ng_per5ft.xdl] Datei „package/cfg/bni_master_ng_per5ft.h“ wird gelöscht
gmake: *** [package/cfg/bni_master_ng_per5ft.xdl] Datei „package/cfg/bni_master_ng_per5ft.c“ wird gelöscht
Warning: directory "/home/zhih/ti/AM65XX_RTOS_SDK/edma3_lld_2_12_05_30E/packages" on package path does not exist
Warning: directory "/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/drv/ipc/packages" on package path does not exist
js: "/home/zhih/ti/AM65XX_RTOS_SDK/xdctools_3_55_02_22_core/packages/xdc/tools/Cmdr.xs", line 52: Error: xdc.tools.configuro: configuration failed due to earlier errors (status = 2); '/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro/linker_mod.cmd' deleted.
/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/makerules/rules_ti_cgt_arm.mk:341: recipe for target '/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro/linker_mod.cmd' failed
make[1]: *** [/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/binary/bni_master_ng/obj/am65xx/mcu1_0/release/configuro/linker_mod.cmd] Error 1
make[1]: Verzeichnis „/home/zhih/workspace_ccs/firmware_60/src“ wird verlassen
/home/zhih/ti/AM65XX_RTOS_SDK/pdk_am65xx_1_0_7/packages/ti/build/makerules/common.mk:401: recipe for target 'mcu1_0' failed
make: *** [mcu1_0] Error 2

Best Regards

Haining

0 Garrett Ding over 5 years ago in reply to Haining Zhi

TI__Mastermind 43296 points

Haining,

>>TARGET_XDC is ti.targets.arm.elf.R5Ft

Can you please try to set "XDC_DISABLE_THUMB_MODE = yes", see platform.mk file:

ifeq ($(ISA),r5f)
ifeq ($(FORMAT),ELF)
# If XDC thumb mode is disabled,choose the non-thumb target of XDC
ifeq ($(XDC_DISABLE_THUMB_MODE),yes)
TARGET_XDC = ti.targets.arm.elf.R5F
else
TARGET_XDC = ti.targets.arm.elf.R5Ft
endif
FORMAT_EXT = e
else
TARGET_XDC = ti.targets.arm.R5Ft
endif

Regards,

Garrett

0 Haining Zhi over 5 years ago in reply to Garrett Ding

Prodigy 105 points

Garrett,

it works! Thanks!

but btw. If the cpp code is inside PDK, there is no need to set this variable. It needs only to be activated, if 1. the codes are outside of PDK and 2. the cpp is used. It that ture? Is there any document for this variable?

Regards,

Haining

0 Garrett Ding over 5 years ago in reply to Haining Zhi

TI__Mastermind 43296 points

Haining,

I think you are right as the CPP source inside PDK may have been covered by wildcard function like SOURCES = $(wildcard *.cpp).

We don't have the document for the variable. I happened to find the build log containing 'TARGET_XDC is ti.targets.arm.elf.R5Ft'.

Regards,

Garrett

Processors

Processors forum

Compiler/AM6548: How to modify the rules_ti_cgt_arm.mk to support for building .cpp files?