@ -84,7 +84,7 @@ ESPBAUD ?= 460800
# --------------- chipset configuration ---------------
# --------------- chipset configuration ---------------
# Pick your flash size: "512KB", "1MB", or "4MB"
# Pick your flash size: "512KB", "1MB", "2MB" or "4MB"
FLASH_SIZE ?= 4MB
FLASH_SIZE ?= 4MB
# The pin assignments below are used when the settings in flash are invalid, they
# The pin assignments below are used when the settings in flash are invalid, they
@ -135,13 +135,12 @@ YUI_COMPRESSOR ?= yuicompressor-2.4.8.jar
HTML_PATH = $( abspath ./html) /
HTML_PATH = $( abspath ./html) /
WIFI_PATH = $( HTML_PATH) wifi/
WIFI_PATH = $( HTML_PATH) wifi/
ESP_FLASH_MAX ?= 503808 # max bin file
i f e q ( "$(FLASH_SIZE)" , "512KB" )
i f e q ( "$(FLASH_SIZE)" , "512KB" )
# Winbond 25Q40 512KB flash, typ for esp-01 thru esp-11
# Winbond 25Q40 512KB flash, typ for esp-01 thru esp-11
ESP_SPI_SIZE ?= 0 # 0->512KB (256KB+256KB)
ESP_SPI_SIZE ?= 0 # 0->512KB (256KB+256KB)
ESP_FLASH_MODE ?= 0 # 0->QIO
ESP_FLASH_MODE ?= 0 # 0->QIO
ESP_FLASH_FREQ_DIV ?= 0 # 0->40Mhz
ESP_FLASH_FREQ_DIV ?= 0 # 0->40Mhz
ESP_FLASH_MAX ?= 241664 # max bin file for 512KB flash: 236KB
ET_FS ?= 4m # 4Mbit flash size in esptool flash command
ET_FS ?= 4m # 4Mbit flash size in esptool flash command
ET_FF ?= 40m # 40Mhz flash speed in esptool flash command
ET_FF ?= 40m # 40Mhz flash speed in esptool flash command
ET_BLANK ?= 0x7E000 # where to flash blank.bin to erase wireless settings
ET_BLANK ?= 0x7E000 # where to flash blank.bin to erase wireless settings
@ -151,6 +150,7 @@ else ifeq ("$(FLASH_SIZE)","1MB")
ESP_SPI_SIZE ?= 2 # 2->1MB (512KB+512KB)
ESP_SPI_SIZE ?= 2 # 2->1MB (512KB+512KB)
ESP_FLASH_MODE ?= 0 # 0->QIO
ESP_FLASH_MODE ?= 0 # 0->QIO
ESP_FLASH_FREQ_DIV ?= 15 # 15->80MHz
ESP_FLASH_FREQ_DIV ?= 15 # 15->80MHz
ESP_FLASH_MAX ?= 503808 # max bin file for 1MB flash: 492KB
ET_FS ?= 8m # 8Mbit flash size in esptool flash command
ET_FS ?= 8m # 8Mbit flash size in esptool flash command
ET_FF ?= 80m # 80Mhz flash speed in esptool flash command
ET_FF ?= 80m # 80Mhz flash speed in esptool flash command
ET_BLANK ?= 0xFE000 # where to flash blank.bin to erase wireless settings
ET_BLANK ?= 0xFE000 # where to flash blank.bin to erase wireless settings
@ -163,6 +163,7 @@ else ifeq ("$(FLASH_SIZE)","2MB")
ESP_SPI_SIZE ?= 4 # 6->4MB (1MB+1MB) or 4->4MB (512KB+512KB)
ESP_SPI_SIZE ?= 4 # 6->4MB (1MB+1MB) or 4->4MB (512KB+512KB)
ESP_FLASH_MODE ?= 0 # 0->QIO, 2->DIO
ESP_FLASH_MODE ?= 0 # 0->QIO, 2->DIO
ESP_FLASH_FREQ_DIV ?= 15 # 15->80Mhz
ESP_FLASH_FREQ_DIV ?= 15 # 15->80Mhz
ESP_FLASH_MAX ?= 503808 # max bin file for 2MB flash: 492KB
ET_FS ?= 16m # 16Mbit flash size in esptool flash command
ET_FS ?= 16m # 16Mbit flash size in esptool flash command
ET_FF ?= 80m # 80Mhz flash speed in esptool flash command
ET_FF ?= 80m # 80Mhz flash speed in esptool flash command
ET_BLANK ?= 0x1FE000 # where to flash blank.bin to erase wireless settings
ET_BLANK ?= 0x1FE000 # where to flash blank.bin to erase wireless settings
@ -175,6 +176,8 @@ else
ESP_SPI_SIZE ?= 4 # 6->4MB (1MB+1MB) or 4->4MB (512KB+512KB)
ESP_SPI_SIZE ?= 4 # 6->4MB (1MB+1MB) or 4->4MB (512KB+512KB)
ESP_FLASH_MODE ?= 0 # 0->QIO, 2->DIO
ESP_FLASH_MODE ?= 0 # 0->QIO, 2->DIO
ESP_FLASH_FREQ_DIV ?= 15 # 15->80Mhz
ESP_FLASH_FREQ_DIV ?= 15 # 15->80Mhz
ESP_FLASH_MAX ?= 503808 # max bin file for 512KB flash partition: 492KB
#ESP_FLASH_MAX ?= 1028096 # max bin file for 1MB flash partition: 1004KB
ET_FS ?= 32m # 32Mbit flash size in esptool flash command
ET_FS ?= 32m # 32Mbit flash size in esptool flash command
ET_FF ?= 80m # 80Mhz flash speed in esptool flash command
ET_FF ?= 80m # 80Mhz flash speed in esptool flash command
ET_BLANK ?= 0x3FE000 # where to flash blank.bin to erase wireless settings
ET_BLANK ?= 0x3FE000 # where to flash blank.bin to erase wireless settings
@ -187,12 +190,17 @@ endif
# Steps to release: create release on github, git pull, git describe --tags to verify you're
# Steps to release: create release on github, git pull, git describe --tags to verify you're
# on the release tag, make release, upload esp-link.tgz into the release files
# on the release tag, make release, upload esp-link.tgz into the release files
#VERSION ?= "esp-link custom version"
#VERSION ?= "esp-link custom version"
DATE := $( shell date '+%F %T' )
DATE := $( shell date '+%F' )
TIME := $( shell date '+%T' )
BRANCH ?= $( shell if git diff --quiet HEAD; then git describe --tags; \
BRANCH ?= $( shell if git diff --quiet HEAD; then git describe --tags; \
else git symbolic-ref --short HEAD; fi )
else git symbolic-ref --short HEAD; fi )
SHA := $( shell if git diff --quiet HEAD; then git rev-parse --short HEAD | cut -d"/" -f 3; \
SHA := $( shell if git diff --quiet HEAD; then git rev-parse --short HEAD | cut -d"/" -f 3; \
else echo "development" ; fi )
else echo "development" ; fi )
VERSION ?= esp-link $( BRANCH) - $( DATE) - $( SHA)
VERSION ?= esp-link $( BRANCH) - $( DATE) - $( TIME) - $( SHA)
BUILD_NUMBER_FILE = $( abspath ./build-number.txt)
BUILD_NUMBER_SRC = $( abspath ./user/buildnum.c)
BUILD_NUMBER := $( shell if ! test -f $( BUILD_NUMBER_FILE) ; then echo 1 > $( BUILD_NUMBER_FILE) ; fi ; cat $( BUILD_NUMBER_FILE) )
# Output directors to store intermediate compiled files
# Output directors to store intermediate compiled files
# relative to the project directory
# relative to the project directory
@ -227,15 +235,15 @@ MODULES += $(foreach sdir,$(LIBRARIES_DIR),$(wildcard $(sdir)/*))
EXTRA_INCDIR = include .
EXTRA_INCDIR = include .
# libraries used in this project, mainly provided by the SDK
# libraries used in this project, mainly provided by the SDK
LIBS = c gcc hal phy pp net80211 wpa main lwip crypto
LIBS = c gcc hal phy pp net80211 wpa main lwip crypto ssl
# compiler flags using during compilation of source files
# compiler flags using during compilation of source files
CFLAGS += -Os -ggdb -std= c99 -Werror -Wpointer-arith -Wundef -Wall -Wl,-EL -fno-inline-functions \
CFLAGS += -Os -ggdb -std= c99 -Werror -Wno-unused-value -W pointer-arith -Wundef -Wall -Wl,-EL -fno-inline-functions \
-nostdlib -mlongcalls -mtext-section-literals -ffunction-sections -fdata-sections \
-nostdlib -mlongcalls -mtext-section-literals -ffunction-sections -fdata-sections \
-D__ets__ -DICACHE_FLASH -Wno-address -DFIRMWARE_SIZE= $( ESP_FLASH_MAX) \
-D__ets__ -DICACHE_FLASH -Wno-address -DFIRMWARE_SIZE= $( ESP_FLASH_MAX) \
-DMCU_RESET_PIN= $( MCU_RESET_PIN) -DMCU_ISP_PIN= $( MCU_ISP_PIN) \
-DMCU_RESET_PIN= $( MCU_RESET_PIN) -DMCU_ISP_PIN= $( MCU_ISP_PIN) \
-DLED_CONN_PIN= $( LED_CONN_PIN) -DLED_SERIAL_PIN= $( LED_SERIAL_PIN) \
-DLED_CONN_PIN= $( LED_CONN_PIN) -DLED_SERIAL_PIN= $( LED_SERIAL_PIN) \
-DVERSION= " $( VERSION) "
-DVERSION= " $( VERSION) " -DBUILD_DATE= " $( DATE) " -DBUILD_TIME= " $( TIME) " -DBUILD_NUM= " $( BUILD_NUMBER) "
# linker flags used to generate the main object file
# linker flags used to generate the main object file
LDFLAGS = -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static -Wl,--gc-sections
LDFLAGS = -nostdlib -Wl,--no-check-sections -u call_user_start -Wl,-static -Wl,--gc-sections
@ -343,13 +351,23 @@ all: echo_version checkdirs $(FW_BASE)/user1.bin $(FW_BASE)/user2.bin
echo_version :
echo_version :
@echo VERSION: $( VERSION)
@echo VERSION: $( VERSION)
# Create an auto-incrementing build number.
@echo "#define VER_STR2(V) #V" > $( BUILD_NUMBER_SRC)
@echo "#define VER_STR(V) VER_STR2(V)" >> $( BUILD_NUMBER_SRC)
@echo "char esp_link_version[] = VER_STR(VERSION);" >> $( BUILD_NUMBER_SRC)
@echo "char esp_link_date[] = VER_STR(BUILD_DATE);" >> $( BUILD_NUMBER_SRC)
@echo "char esp_link_time[] = VER_STR(BUILD_TIME);" >> $( BUILD_NUMBER_SRC)
@echo "char esp_link_build[] = VER_STR(BUILD_NUM);" >> $( BUILD_NUMBER_SRC)
# Build number file. Increment if firmware file changes
$(BUILD_NUMBER_FILE) : $( USER 1_OUT )
@if ! test -f $( BUILD_NUMBER_FILE) ; then echo 0 > $( BUILD_NUMBER_FILE) ; fi
@echo $$ ( ( $$ ( cat $( BUILD_NUMBER_FILE) ) + 1) ) > $( BUILD_NUMBER_FILE)
$(USER1_OUT) : $( APP_AR ) $( LD_SCRIPT 1)
$(USER1_OUT) : $( APP_AR ) $( LD_SCRIPT 1)
$( vecho) " LD $@ "
$( vecho) " LD $@ "
$( Q) $( LD) -L$( SDK_LIBDIR) -T$( LD_SCRIPT1) $( LDFLAGS) -Wl,--start-group $( LIBS) $( APP_AR) -Wl,--end-group -o $@
$( Q) $( LD) -L$( SDK_LIBDIR) -T$( LD_SCRIPT1) $( LDFLAGS) -Wl,--start-group $( LIBS) $( APP_AR) -Wl,--end-group -o $@
@echo Dump : $( OBJDP) -x $( USER1_OUT)
$( Q) $( OBJDP) -S $( USER1_OUT) > $( addprefix $( BUILD_BASE) /,$( TARGET) .dump)
@echo Disass: $( OBJDP) -d -l -x $( USER1_OUT)
# $(Q) $(OBJDP) -x $(TARGET_OUT) | egrep espfs_img
$(USER2_OUT) : $( APP_AR ) $( LD_SCRIPT 2)
$(USER2_OUT) : $( APP_AR ) $( LD_SCRIPT 2)
$( vecho) " LD $@ "
$( vecho) " LD $@ "
@ -360,16 +378,15 @@ $(FW_BASE):
$( vecho) " FW $@ "
$( vecho) " FW $@ "
$( Q) mkdir -p $@
$( Q) mkdir -p $@
$(FW_BASE)/user1.bin : $( USER 1_OUT ) $( FW_BASE )
$(FW_BASE)/user1.bin : $( USER 1_OUT ) $( FW_BASE ) $( BUILD_NUMBER_FILE )
$( Q) $( OBJCP) --only-section .text -O binary $( USER1_OUT) eagle.app.v6.text.bin
$( Q) $( OBJCP) --only-section .text -O binary $( USER1_OUT) eagle.app.v6.text.bin
$( Q) $( OBJCP) --only-section .data -O binary $( USER1_OUT) eagle.app.v6.data.bin
$( Q) $( OBJCP) --only-section .data -O binary $( USER1_OUT) eagle.app.v6.data.bin
$( Q) $( OBJCP) --only-section .rodata -O binary $( USER1_OUT) eagle.app.v6.rodata.bin
$( Q) $( OBJCP) --only-section .rodata -O binary $( USER1_OUT) eagle.app.v6.rodata.bin
$( Q) $( OBJCP) --only-section .irom0.text -O binary $( USER1_OUT) eagle.app.v6.irom0text.bin
$( Q) $( OBJCP) --only-section .irom0.text -O binary $( USER1_OUT) eagle.app.v6.irom0text.bin
ls -ls eagle*bin
$( Q) COMPILE = gcc PATH = $( XTENSA_TOOLS_ROOT) :$( PATH) python $( APPGEN_TOOL) $( USER1_OUT) 2 $( ESP_FLASH_MODE) $( ESP_FLASH_FREQ_DIV) $( ESP_SPI_SIZE) 0
$( Q) COMPILE = gcc PATH = $( XTENSA_TOOLS_ROOT) :$( PATH) python $( APPGEN_TOOL) $( USER1_OUT) 2 $( ESP_FLASH_MODE) $( ESP_FLASH_FREQ_DIV) $( ESP_SPI_SIZE) 0
$( Q) rm -f eagle.app.v6.*.bin
$( Q) rm -f eagle.app.v6.*.bin
$( Q) mv eagle.app.flash.bin $@
$( Q) mv eagle.app.flash.bin $@
@echo " ** user1.bin uses $$ (stat -c '%s' $@ ) bytes of " $( ESP_FLASH_MAX) "available"
@echo " ** user1.bin uses $$ (stat -c '%s' $@ ) bytes of " $( ESP_FLASH_MAX) "available = " $( shell expr $$ ( stat -c '%s' $@ ) \* 100 / $( ESP_FLASH_MAX) ) "%"
$( Q) if [ $$ ( stat -c '%s' $@ ) -gt $$ ( ( $( ESP_FLASH_MAX) ) ) ] ; then echo " $@ too big! " ; false; fi
$( Q) if [ $$ ( stat -c '%s' $@ ) -gt $$ ( ( $( ESP_FLASH_MAX) ) ) ] ; then echo " $@ too big! " ; false; fi
$(FW_BASE)/user2.bin : $( USER 2_OUT ) $( FW_BASE )
$(FW_BASE)/user2.bin : $( USER 2_OUT ) $( FW_BASE )
@ -410,60 +427,55 @@ tools/$(HTML_COMPRESSOR):
e l s e
e l s e
tools/$(HTML_COMPRESSOR) :
tools/$(HTML_COMPRESSOR) :
$( Q) mkdir -p tools
$( Q) mkdir -p tools
cd tools; wget https://github.com/yui/yuicompressor/releases/download/v2.4.8/$( YUI_COMPRESSOR)
$( Q) if ! test -f tools/$( YUI_COMPRESSOR) ; then wget https://github.com/yui/yuicompressor/releases/download/v2.4.8/$( YUI_COMPRESSOR) -O tools/$( YUI_COMPRESSOR) ; fi
cd tools; wget https://htmlcompressor.googlecode.com/file s/$( HTML_COMPRESSOR)
$( Q) if ! test -f tools/$( HTML_COMPRESSOR) ; then wget https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/htmlcompressor/$( HTML_COMPRESSOR) -O tool s/$( HTML_COMPRESSOR) ; fi
e n d i f
e n d i f
i f e q ( "$(COMPRESS_W_HTMLCOMPRESSOR)" , "yes" )
i f e q ( "$(COMPRESS_W_HTMLCOMPRESSOR)" , "yes" )
$(BUILD_BASE)/espfs_img.o : tools /$( HTML_COMPRESSOR )
$(BUILD_BASE)/espfs_img.o : tools /$( HTML_COMPRESSOR )
e n d i f
e n d i f
$(BUILD_BASE)/espfs_img.o : html / html /wifi / espfs /mkespfsimage /mkespfsimage
$(BUILD_BASE)/espfs_img.o : $( shell find html ) espfs /mkespfsimage /mkespfsimage
$( Q) rm -rf html_compressed; mkdir html_compressed; mkdir html_compressed/wifi;
$( Q) rm -rf html_compressed; mkdir -p html_compressed; cp -r html/* html_compressed;
$( Q) cp -r html/*.ico html_compressed;
$( Q) cp -r html/*.css html_compressed;
$( Q) cp -r html/*.js html_compressed;
$( Q) cp -r html/wifi/*.png html_compressed/wifi;
$( Q) cp -r html/wifi/*.js html_compressed/wifi;
i f e q ( "$(COMPRESS_W_HTMLCOMPRESSOR)" , "yes" )
i f e q ( "$(COMPRESS_W_HTMLCOMPRESSOR)" , "yes" )
$( Q) echo "Compression assets with htmlcompressor. This may take a while..."
$( Q) echo "Compression assets with htmlcompressor. This is fast..."
$( Q) java -jar tools/$( HTML_COMPRESSOR) \
$( Q) for file in ` find html_compressed -type f -name "*.html" ` ; do \
java -jar yui/$( HTML_COMPRESSOR) \
-t html --remove-surrounding-spaces max --remove-quotes --remove-intertag-spaces \
-t html --remove-surrounding-spaces max --remove-quotes --remove-intertag-spaces \
-o $( abspath ./html_compressed) / \
-o $$ file $$ file; \
$( HTML_PATH) head- \
done
$( HTML_PATH) *.html
$( Q) echo "Compressing JS/CSS with yui-compressor. This may take a while..."
$( Q) java -jar tools/$( HTML_COMPRESSOR) \
-t html --remove-surrounding-spaces max --remove-quotes --remove-intertag-spaces \
-o $( abspath ./html_compressed) /wifi/ \
$( WIFI_PATH) *.html
$( Q) echo "Compression assets with yui-compressor. This may take a while..."
$( Q) for file in ` find html_compressed -type f -name "*.js" ` ; do \
$( Q) for file in ` find html_compressed -type f -name "*.js" ` ; do \
java -jar tools /$( YUI_COMPRESSOR) $$ file --line-break 0 -o $$ file; \
java -jar yui/$( YUI_COMPRESSOR) $$ file --line-break 0 -o $$ file; \
done
done
$( Q) for file in ` find html_compressed -type f -name "*.css" ` ; do \
$( Q) for file in ` find html_compressed -type f -name "*.css" ` ; do \
java -jar tools /$( YUI_COMPRESSOR) $$ file -o $$ file; \
java -jar yui/$( YUI_COMPRESSOR) $$ file -o $$ file; \
done
done
e l s e
$( Q) cp -r html/head- html_compressed;
$( Q) cp -r html/*.html html_compressed;
$( Q) cp -r html/wifi/*.html html_compressed/wifi;
e n d i f
e n d i f
i f e q ( , $( findstring mqtt ,$ ( MODULES ) ) )
i f e q ( , $( findstring mqtt ,$ ( MODULES ) ) )
$( Q) rm -rf html_compressed/mqtt.html
$( Q) rm -rf html_compressed/mqtt.html
$( Q) rm -rf html_compressed/mqtt.js
$( Q) rm -rf html_compressed/mqtt.js
e n d i f
e n d i f
$( Q) for file in ` find html_compressed -type f -name "*.htm*" ` ; do \
$( Q) echo "Now building espFS ..."
cat html_compressed/head- $$ file >$$ { file} -; \
mv $$ file- $$ file; \
done
$( Q) rm html_compressed/head-
$( Q) cd html_compressed; find . \! -name \* - | ../espfs/mkespfsimage/mkespfsimage > ../build/espfs.img; cd ..;
$( Q) cd html_compressed; find . \! -name \* - | ../espfs/mkespfsimage/mkespfsimage > ../build/espfs.img; cd ..;
$( Q) ls -sl build/espfs.img
@echo " espFS image is $$ (stat -c '%s' build/espfs.img) bytes = " $( shell expr $$ ( stat -c '%s' build/espfs.img) \* 100 / $$ ( du -sb html_compressed | { read first _ ; echo $$ first; } ) ) "% of uncompressed originals"
$( Q) cd build; $( OBJCP) -I binary -O elf32-xtensa-le -B xtensa --rename-section .data= .espfs \
$( Q) cd build; $( OBJCP) -I binary -O elf32-xtensa-le -B xtensa --rename-section .data= .espfs \
espfs.img espfs_img.o; cd ..
espfs.img espfs_img.o; cd ..
# edit the loader script to add the espfs section to the end of irom with a 4 byte alignment.
# edit the loader script to add the espfs section to the end of irom with a 4 byte alignment.
# we also adjust the sizes of the segments 'cause we need more irom0
# we also adjust the sizes of the segments 'cause we need more irom0
# in the end the only thing that matters wrt size is that the whole shebang fits into the
# 236KB available (in a 512KB flash)
i f e q ( "$(FLASH_SIZE)" , "512KB" )
build/eagle.esphttpd1.v6.ld : $( SDK_LDDIR ) /eagle .app .v 6.new .512.app 1.ld
$( Q) sed -e '/\.irom\.text/{' -e 'a . = ALIGN (4);' -e 'a *(.espfs)' -e '}' \
-e '/^ irom0_0_seg/ s/2B000/38000/' \
$( SDK_LDDIR) /eagle.app.v6.new.512.app1.ld >$@
build/eagle.esphttpd2.v6.ld : $( SDK_LDDIR ) /eagle .app .v 6.new .512.app 2.ld
$( Q) sed -e '/\.irom\.text/{' -e 'a . = ALIGN (4);' -e 'a *(.espfs)' -e '}' \
-e '/^ irom0_0_seg/ s/2B000/38000/' \
$( SDK_LDDIR) /eagle.app.v6.new.512.app2.ld >$@
e l s e
build/eagle.esphttpd1.v6.ld : $( SDK_LDDIR ) /eagle .app .v 6.new .1024.app 1.ld
build/eagle.esphttpd1.v6.ld : $( SDK_LDDIR ) /eagle .app .v 6.new .1024.app 1.ld
$( Q) sed -e '/\.irom\.text/{' -e 'a . = ALIGN (4);' -e 'a *(.espfs)' -e '}' \
$( Q) sed -e '/\.irom\.text/{' -e 'a . = ALIGN (4);' -e 'a *(.espfs)' -e '}' \
-e '/^ irom0_0_seg/ s/6B000/7C000/' \
-e '/^ irom0_0_seg/ s/6B000/7C000/' \
@ -472,8 +484,9 @@ build/eagle.esphttpd2.v6.ld: $(SDK_LDDIR)/eagle.app.v6.new.1024.app2.ld
$( Q) sed -e '/\.irom\.text/{' -e 'a . = ALIGN (4);' -e 'a *(.espfs)' -e '}' \
$( Q) sed -e '/\.irom\.text/{' -e 'a . = ALIGN (4);' -e 'a *(.espfs)' -e '}' \
-e '/^ irom0_0_seg/ s/6B000/7C000/' \
-e '/^ irom0_0_seg/ s/6B000/7C000/' \
$( SDK_LDDIR) /eagle.app.v6.new.1024.app2.ld >$@
$( SDK_LDDIR) /eagle.app.v6.new.1024.app2.ld >$@
e n d i f
espfs/mkespfsimage/mkespfsimage : espfs /mkespfsimage /
espfs/mkespfsimage/mkespfsimage : espfs /mkespfsimage /*.c
$( Q) $( MAKE) -C espfs/mkespfsimage GZIP_COMPRESSION = " $( GZIP_COMPRESSION) "
$( Q) $( MAKE) -C espfs/mkespfsimage GZIP_COMPRESSION = " $( GZIP_COMPRESSION) "
release : all
release : all