nexmon – Rev 1

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GIT_VERSION := $(shell git describe --abbrev=4 --dirty --always --tags)
include ../version.mk
include $(FW_PATH)/definitions.mk

LOCAL_SRCS=$(wildcard src/*.c)

OBJS=$(addprefix obj/,$(notdir $(LOCAL_SRCS:.c=.o)))

CFLAGS= \
        -fplugin=$(CCPLUGIN) \
        -fplugin-arg-nexmon-objfile=$@ \
        -fplugin-arg-nexmon-prefile=gen/nexmon.pre \
        -fplugin-arg-nexmon-chipver=$(NEXMON_CHIP_NUM) \
        -fplugin-arg-nexmon-fwver=$(NEXMON_FW_VERSION_NUM) \
        -fno-strict-aliasing \
        -DNEXMON_CHIP=$(NEXMON_CHIP) \
        -DNEXMON_FW_VERSION=$(NEXMON_FW_VERSION) \
        -DPATCHSTART=$(PATCHSTART) \
        -DUCODESIZE=$(UCODESIZE) \
        -DGIT_VERSION=\"$(GIT_VERSION)\" \
        -DBUILD_NUMBER=\"$$(cat BUILD_NUMBER)\" \
        -Wall -Werror -O2 -nostdlib -nostartfiles -ffreestanding -mthumb -march=$(NEXMON_ARCH) \
        -ffunction-sections -fdata-sections \
        -I$(NEXMON_ROOT)/patches/include \
        -Iinclude \
        -I$(FW_PATH)

all: fw_bcmdhd.bin

init: FORCE
        $(Q)if ! test -f BUILD_NUMBER; then echo 0 > BUILD_NUMBER; fi
        $(Q)echo $$(($$(cat BUILD_NUMBER) + 1)) > BUILD_NUMBER
        $(Q)touch src/version.c
        $(Q)make -s -f $(NEXMON_ROOT)/patches/common/header.mk
        $(Q)mkdir -p obj gen log

obj/%.o: src/%.c
        @printf "\033[0;31m  COMPILING\033[0m %s => %s (details: log/compiler.log)\n" $< $@
        $(Q)cat gen/nexmon.pre 2>>log/error.log | gawk '{ if ($$3 != "$@") print; }' > tmp && mv tmp gen/nexmon.pre
        $(Q)$(CC)gcc $(CFLAGS) -c $< -o $@ >>log/compiler.log

gen/nexmon2.pre: $(OBJS)
        @printf "\033[0;31m  PREPARING\033[0m %s => %s\n" "gen/nexmon.pre" $@
        $(Q)cat gen/nexmon.pre | awk '{ if ($$3 != "obj/flashpatches.o" && $$3 != "obj/wrapper.o") { print $$0; } }' > tmp
        $(Q)cat gen/nexmon.pre | awk '{ if ($$3 == "obj/flashpatches.o" || $$3 == "obj/wrapper.o") { print $$0; } }' >> tmp
        $(Q)cat tmp | awk '{ if ($$1 ~ /^0x/) { if ($$3 != "obj/flashpatches.o" && $$3 != "obj/wrapper.o") { if (!x[$$1]++) { print $$0; } } else { if (!x[$$1]) { print $$0; } } } else { print $$0; } }' > gen/nexmon2.pre

gen/nexmon.ld: gen/nexmon2.pre $(OBJS)
        @printf "\033[0;31m  GENERATING LINKER FILE\033[0m gen/nexmon.pre => %s\n" $@
        $(Q)sort gen/nexmon2.pre | gawk -f $(NEXMON_ROOT)/buildtools/scripts/nexmon.ld.awk > $@

gen/nexmon.mk: gen/nexmon2.pre $(OBJS) $(FW_PATH)/definitions.mk
        @printf "\033[0;31m  GENERATING MAKE FILE\033[0m gen/nexmon.pre => %s\n" $@
        $(Q)printf "fw_bcmdhd.bin: gen/patch.elf FORCE\n" > $@
        $(Q)sort gen/nexmon2.pre | \
                gawk -v src_file=gen/patch.elf -f $(NEXMON_ROOT)/buildtools/scripts/nexmon.mk.1.awk | \
                gawk -v ramstart=$(RAMSTART) -f $(NEXMON_ROOT)/buildtools/scripts/nexmon.mk.2.awk >> $@
        $(Q)printf "\nFORCE:\n" >> $@
        $(Q)gawk '!a[$$0]++' $@ > tmp && mv tmp $@

gen/memory.ld: $(FW_PATH)/definitions.mk
        @printf "\033[0;31m  GENERATING LINKER FILE\033[0m %s\n" $@
        $(Q)printf "rom : ORIGIN = 0x%08x, LENGTH = 0x%08x\n" $(ROMSTART) $(ROMSIZE) > $@
        $(Q)printf "ram : ORIGIN = 0x%08x, LENGTH = 0x%08x\n" $(RAMSTART) $(RAMSIZE) >> $@
        $(Q)printf "patch : ORIGIN = 0x%08x, LENGTH = 0x%08x\n" $(PATCHSTART) $(PATCHSIZE) >> $@

gen/patch.elf: patch.ld gen/nexmon.ld gen/memory.ld $(OBJS)
        @printf "\033[0;31m  LINKING OBJECTS\033[0m => %s (details: log/linker.log, log/linker.err)\n" $@
        $(Q)$(CC)ld -T $< -o $@ --gc-sections --print-gc-sections -M >>log/linker.log 2>>log/linker.err

fw_bcmdhd.bin: init gen/patch.elf $(FW_PATH)/$(RAM_FILE) gen/nexmon.mk
        $(Q)cp $(FW_PATH)/$(RAM_FILE) $@
        @printf "\033[0;31m  APPLYING PATCHES\033[0m gen/nexmon.mk => %s (details: log/patches.log)\n" $@
        $(Q)make -f gen/nexmon.mk >>log/patches.log 2>>log/flashpatches.log

check-nexmon-setup-env:
ifndef NEXMON_SETUP_ENV
        $(error run 'source setup_env.sh' first in the repository\'s root directory)
endif

dump-rom: fw_bcmdhd.bin
        @printf "\033[0;31m  COPYING TO PHONE\033[0m %s => /sdcard/%s\n" $< $<
        $(Q)adb push $< /sdcard/ >> log/adb.log 2>> log/adb.log
        @printf "\033[0;31m  DUMPING PATCHED ROM\033[0m ROM => /sdcard/patchedrom.bin\n"
        $(Q)adb shell 'su -c "dhdutil membytes -r 0x0 $(ROMSIZE) > /sdcard/patchedrom.bin"'
        @printf "\033[0;31m  LOADING FIRMWARE\033[0m /sdcard/fw_bcmdhd.bin\n"
        $(Q)adb shell 'su -c "dhdutil download /sdcard/fw_bcmdhd.bin"'
        @printf "\033[0;31m  DUMPING ROM\033[0m ROM => /sdcard/rom.bin\n"
        $(Q)adb shell 'su -c "dhdutil membytes -r 0x185000 $(ROMSIZE) > /sdcard/rom.bin"'
        @printf "\033[0;31m  PULLING\033[0m /sdcard/rom.bin => rom.bin\n"
        $(Q)adb pull /sdcard/rom.bin rom.bin
        @printf "\033[0;31m  PULLING\033[0m /sdcard/rom.bin => rom.bin\n"
        $(Q)adb pull /sdcard/patchedrom.bin patchedrom.bin
        @printf "\033[0;31m  RELOADING PREVIOUS FIRMWARE\033[0m\n"
        $(Q)adb shell 'su -c "ifconfig wlan0 down && ifconfig wlan0 up"'
        @printf "\033[0;31m  COPYING ROM\033[0m rom.bin => $(NEXMON_ROOT)/firmwares/bcm4335b0/rom.bin\n"
        $(Q)cp rom.bin $(NEXMON_ROOT)/firmwares/bcm4335b0/rom.bin
        @printf "\033[0;31m  COPYING PATCHED ROM\033[0m rom.bin => $(NEXMON_ROOT)/firmwares/bcm4335b0/patchedrom.bin\n"
        $(Q)cp patchedrom.bin $(NEXMON_ROOT)/firmwares/bcm4335b0/patchedrom.bin

backup-firmware: FORCE
        adb shell 'su -c "cp /vendor/firmware/fw_bcmdhd.bin /sdcard/fw_bcmdhd.orig.bin"'
        adb pull /sdcard/fw_bcmdhd.orig.bin

install-backup: fw_bcmdhd.orig.bin
        adb shell 'su -c "mount -o rw,remount /system"' && \
        adb push $< /sdcard/ && \
        adb shell 'su -c "cp /sdcard/fw_bcmdhd.bin /vendor/firmware/fw_bcmdhd.bin"'
        adb shell 'su -c "ifconfig wlan0 down && ifconfig wlan0 up"'

clean-firmware: FORCE
        @printf "\033[0;31m  CLEANING\033[0m\n"
        $(Q)rm -fr fw_bcmdhd.bin obj gen log

clean: clean-firmware
        $(Q)rm -f BUILD_NUMBER rom.bin

FORCE: