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# ---------------------------------------
# Compiler Flags
# ---------------------------------------
CFLAGS += \
-MD \
-ggdb \
-fdata-sections \
-ffunction-sections \
-fno-strict-aliasing \
-Wall \
-Wextra \
-Werror \
-Wfatal-errors \
-Wdouble-promotion \
-Wstrict-prototypes \
-Wstrict-overflow \
-Werror-implicit-function-declaration \
-Wfloat-equal \
-Wundef \
-Wshadow \
-Wwrite-strings \
-Wsign-compare \
-Wmissing-format-attribute \
-Wunreachable-code \
-Wcast-align \
-Wcast-function-type \
-Wcast-qual \
-Wnull-dereference \
-Wuninitialized \
-Wunused \
-Wreturn-type \
-Wredundant-decls \
CFLAGS_CLANG += \
-Wno-error=unknown-warning-option
# -Wmissing-prototypes \
# conversion is too strict for most mcu driver, may be disable sign/int/arith-conversion
# -Wconversion
# Size Optimization as default
CFLAGS_OPTIMIZED ?= -Os
# Debugging/Optimization
ifeq ($(DEBUG), 1)
CFLAGS += -O0
NO_LTO = 1
else
CFLAGS += $(CFLAGS_OPTIMIZED)
endif
# ---------------------------------------
# Linker Flags
# ---------------------------------------
LDFLAGS += \
-Wl,[email protected] \
-Wl,--cref \
-Wl,-gc-sections \
# renesas rx does not support --print-memory-usage flags
ifneq ($(FAMILY),rx)
LDFLAGS += -Wl,--print-memory-usage
endif
ifeq ($(TOOLCHAIN),gcc)
CC_VERSION := $(shell $(CC) -dumpversion)
CC_VERSION_MAJOR = $(firstword $(subst ., ,$(CC_VERSION)))
# from version 12
ifeq ($(strip $(if $(CMDEXE),\
$(shell if $(CC_VERSION_MAJOR) geq 12 (echo 1) else (echo 0)),\
$(shell expr $(CC_VERSION_MAJOR) \>= 12))), 1)
LDFLAGS += -Wl,--no-warn-rwx-segment
endif
endif
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