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Support release build #29

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3 changes: 2 additions & 1 deletion Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -74,4 +74,5 @@ help:
make install create raspi kernel and mount it on a bootable partition\n\
make prepare-fs create directories for the filesystem\n\n"\
\n\
Use 'make V=1' for verbose build output.
Use 'make V=1' for verbose build output.\n\
Use 'make RELEASE=1' for optimized release build (currently broken).
8 changes: 7 additions & 1 deletion common.mk
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Expand Up @@ -6,10 +6,16 @@ AR := $(ARCH)-ar
OBJCOPY := $(ARCH)-objcopy

COMMON_FLAGS ?= -ffreestanding -nostdlib -fno-exceptions -fno-unwind-tables \
-fno-asynchronous-unwind-tables -g -O0 -Wall -Wextra \
-fno-asynchronous-unwind-tables -Wall -Wextra \
-Wno-unused-parameter -Wno-address-of-packed-member \
-mcpu=cortex-a72

ifeq ($(RELEASE), 1)
COMMON_FLAGS += -O3 -s -DNDEBUG
else
COMMON_FLAGS += -O0 -g
endif

CFLAGS_BASE ?= $(COMMON_FLAGS) -std=c17
CXXFLAGS_BASE ?= $(COMMON_FLAGS) -fno-rtti
LDFLAGS_BASE ?=
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