@@ 1,19 1,5 @@
# Hey Emacs, this is a -*- makefile -*-
#----------------------------------------------------------------------------
-# WinAVR Makefile Template written by Eric B. Weddington, Jg Wunsch, et al.
-#
-# Released to the Public Domain
-#
-# Additional material for this makefile was written by:
-# Peter Fleury
-# Tim Henigan
-# Colin O'Flynn
-# Reiner Patommel
-# Markus Pfaff
-# Sander Pool
-# Frederik Rouleau
-# Carlos Lamas
-#
# Enable vpath seraching for source files only
# Without this, output files, could be read from the wrong .build directories
@@ 38,36 24,15 @@ NO_LTO_OBJ := $(filter %.a,$(OBJ))
MASTER_OUTPUT := $(firstword $(OUTPUTS))
-
-
# Output format. (can be srec, ihex, binary)
FORMAT = ihex
# Optimization level, can be [0, 1, 2, 3, s].
-# 0 = turn off optimization. s = optimize for size.
-# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
OPT ?= s
-# Compiler flag to set the C Standard level.
-# c89 = "ANSI" C
-# gnu89 = c89 plus GCC extensions
-# c99 = ISO C99 standard (not yet fully implemented)
-# gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
-
-
-# Place -D or -U options here for C sources
-#CDEFS +=
-
-
-# Place -D or -U options here for ASM sources
-#ADEFS +=
-
-
-# Place -D or -U options here for C++ sources
-#CXXDEFS += -D__STDC_LIMIT_MACROS
-#CXXDEFS += -D__STDC_CONSTANT_MACROS
-#CXXDEFS +=
+# Compiler flag to set the C and C++ language standard level
+CSTANDARD = -std=gnu11
+CXXSTANDARD = -std=gnu++14
# Speed up recompilations by opt-in usage of ccache
USE_CCACHE ?= no
@@ 75,12 40,8 @@ ifneq ($(USE_CCACHE),no)
CC_PREFIX ?= ccache
endif
-#---------------- Compiler Options C ----------------
-# -g*: generate debugging information
-# -O*: optimization level
-# -f...: tuning, see GCC manual and avr-libc documentation
-# -Wall...: warning level
-# -Wa,...: tell GCC to pass this to the assembler.
+#---------------- C Compiler Options ----------------
+
ifeq ($(strip $(LTO_ENABLE)), yes)
ifeq ($(PLATFORM),ARM_ATSAM)
$(info Enabling LTO on arm_atsam-targeting boards is known to have a high likelihood of failure.)
@@ 111,23 72,14 @@ CFLAGS += -Wstrict-prototypes
ifneq ($(strip $(ALLOW_WARNINGS)), yes)
CFLAGS += -Werror
endif
-#CFLAGS += -mshort-calls
-#CFLAGS += -fno-unit-at-a-time
-#CFLAGS += -Wundef
-#CFLAGS += -Wunreachable-code
-#CFLAGS += -Wsign-compare
CFLAGS += $(CSTANDARD)
# This fixes lots of keyboards linking errors but SHOULDN'T BE A FINAL SOLUTION
# Fixing of multiple variable definitions must be made.
CFLAGS += -fcommon
-#---------------- Compiler Options C++ ----------------
-# -g*: generate debugging information
-# -O*: optimization level
-# -f...: tuning, see GCC manual and avr-libc documentation
-# -Wall...: warning level
-# -Wa,...: tell GCC to pass this to the assembler.
+#---------------- C++ Compiler Options ----------------
+
ifeq ($(strip $(DEBUG_ENABLE)),yes)
CXXFLAGS += -g$(DEBUG)
endif
@@ 141,57 93,17 @@ CXXFLAGS += -Wundef
ifneq ($(strip $(ALLOW_WARNINGS)), yes)
CXXFLAGS += -Werror
endif
-#CXXFLAGS += -mshort-calls
-#CXXFLAGS += -fno-unit-at-a-time
-#CXXFLAGS += -Wstrict-prototypes
-#CXXFLAGS += -Wunreachable-code
-#CXXFLAGS += -Wsign-compare
-#CXXFLAGS += $(CSTANDARD)
#---------------- Assembler Options ----------------
+
ASFLAGS += $(ADEFS)
ifeq ($(VERBOSE_AS_CMD),yes)
ASFLAGS += -v
endif
-#---------------- Library Options ----------------
-# Minimalistic printf version
-PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
-
-# Floating point printf version (requires MATH_LIB = -lm below)
-PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
-
-# If this is left blank, then it will use the Standard printf version.
-PRINTF_LIB =
-#PRINTF_LIB = $(PRINTF_LIB_MIN)
-#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
-
-
-# Minimalistic scanf version
-SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
-
-# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
-SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
-
-# If this is left blank, then it will use the Standard scanf version.
-SCANF_LIB =
-#SCANF_LIB = $(SCANF_LIB_MIN)
-#SCANF_LIB = $(SCANF_LIB_FLOAT)
-
-
-MATH_LIB = -lm
-CREATE_MAP ?= yes
-
-
#---------------- Linker Options ----------------
-# -Wl,...: tell GCC to pass this to linker.
-# -Map: create map file
-# --cref: add cross reference to map file
-#
-# Comennt out "--relax" option to avoid a error such:
-# (.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
-#
+CREATE_MAP ?= yes
ifeq ($(CREATE_MAP),yes)
LDFLAGS += -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref
endif
@@ 201,20 113,11 @@ endif
#LDFLAGS += -Wl,--relax
LDFLAGS += $(EXTMEMOPTS)
LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
-LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
-#LDFLAGS += -T linker_script.x
+LDFLAGS += -lm
# You can give EXTRALDFLAGS at 'make' command line.
LDFLAGS += $(EXTRALDFLAGS)
#---------------- Assembler Listings ----------------
-# -Wa,...: tell GCC to pass this to the assembler.
-# -adhlns: create listing
-# -gstabs: have the assembler create line number information; note that
-# for use in COFF files, additional information about filenames
-# and function names needs to be present in the assembler source
-# files -- see avr-libc docs [FIXME: not yet described there]
-# -listing-cont-lines: Sets the maximum number of continuation lines of hex
-# dump that will be displayed for a given single line of source input.
ADHLNS_ENABLE ?= no
ifeq ($(ADHLNS_ENABLE),yes)
@@ 30,7 30,7 @@ COMPILEFLAGS += -mthumb
CFLAGS += $(COMPILEFLAGS)
CXXFLAGS += $(COMPILEFLAGS)
-CXXFLAGS += -fno-exceptions -std=c++11
+CXXFLAGS += -fno-exceptions $(CXXSTANDARD)
LDFLAGS +=-Wl,--gc-sections
LDFLAGS += -Wl,-Map="%OUT%%PROJ_NAME%.map"