common.mk

ROOT:=.
FWDIR:=$(ROOT)/firmware
SRC:=$(ROOT)/src
INCLUDE:=$(ROOT)/include

ARCHTUPLE=~/gcc-arm-none-eabi-7-2017-q4-major/bin/arm-none-eabi-
DEVICE=VEX EDR V5

MFLAGS=-march=armv7-a -mfpu=neon-fp16 -mfloat-abi=softfp
CPPFLAGS=-D_POSIX_THREADS -D_UNIX98_THREAD_MUTEX_ATTRIBUTES -Os
GCCFLAGS=-ffunction-sections -fdata-sections -fdiagnostics-color

WARNFLAGS=-Wall

SPACE :=
SPACE +=
COMMA := ,
LNK_FLAGS = -T?%$(FWDIR)/v5.ld --gc-sections

ASMFLAGS=$(MFLAGS) $(WARNFLAGS)
CFLAGS=$(MFLAGS) $(CPPFLAGS) $(WARNFLAGS) $(GCCFLAGS) --std=gnu11
CXXFLAGS=$(MFLAGS) $(CPPFLAGS) $(WARNFLAGS) -funwind-tables $(GCCFLAGS)  --std=gnu++14
LDFLAGS=$(MFLAGS) $(WARNFLAGS) -nostdlib  $(subst ?%,$(SPACE),$(addprefix -Wl$(COMMA), $(LNK_FLAGS)))
SIZEFLAGS=-d --common
NUMFMTFLAGS=--to=iec --format %.2f --suffix=B

AR:=$(ARCHTUPLE)ar
# using arm-none-eabi-as generates a listing by default. This produces a super verbose output.
# Using gcc accomplishes the same thing without the extra output
AS:=$(ARCHTUPLE)gcc
CC:=$(ARCHTUPLE)gcc
CXX:=$(ARCHTUPLE)g++
LD:=$(ARCHTUPLE)g++
OBJCOPY:=$(ARCHTUPLE)objcopy
SIZETOOL:=$(ARCHTUPLE)size
READELF:=$(ARCHTUPLE)readelf

# filename extensions
CEXTS:=c
ASMEXTS:=s S
CXXEXTS:=cpp c++ cc

rwildcard=$(foreach d,$(filter-out $3,$(wildcard $1*)),$(call rwildcard,$d/,$2,$3)$(filter $(subst *,%,$2),$d))

# Colors
NO_COLOR=\x1b[0m
OK_COLOR=\x1b[32;01m
ERROR_COLOR=\x1b[31;01m
WARN_COLOR=\x1b[33;01m
STEP_COLOR=\x1b[37;01m
OK_STRING=$(OK_COLOR)[OK]$(NO_COLOR)
DONE_STRING=$(OK_COLOR)[DONE]$(NO_COLOR)
ERROR_STRING=$(ERROR_COLOR)[ERRORS]$(NO_COLOR)
WARN_STRING=$(WARN_COLOR)[WARNINGS]$(NO_COLOR)
ECHO=/bin/echo -e
echo=@$(ECHO) "$2$1$(NO_COLOR)"
echon=@$(ECHO) -n "$2$1$(NO_COLOR)"

define test_output
@rm -f temp.log temp.errors
$1 2> temp.log || touch temp.errors
@if test -e temp.errors; then $(ECHO) "$(ERROR_STRING)" && cat temp.log; elif test -s temp.log; then $(ECHO) "$(WARN_STRING)" && cat temp.log; else $(ECHO) "$2"; fi;
@if test -e temp.errors; then rm -f temp.log temp.errors && false; fi;
@rm -f temp.log temp.errors
endef

# Makefile Verbosity
ifeq ("$(origin VERBOSE)", "command line")
BUILD_VERBOSE = $(VERBOSE)
endif
ifeq ("$(origin V)", "command line")
BUILD_VERBOSE = $(V)
endif

ifndef BUILD_VERBOSE
BUILD_VERBOSE = 0
endif

# R is reduced (default messages) - build verbose = 0
# V is verbose messages - verbosity = 1
# VV is super verbose - verbosity = 2
ifeq ($(BUILD_VERBOSE), 0)
R = @echo
D = @
VV = @
endif
ifeq ($(BUILD_VERBOSE), 1)
R = @echo
D =
VV = @
endif
ifeq ($(BUILD_VERBOSE), 2)
R =
D =
VV =
endif