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ESP32 - failed to build on machine_rtc #4117

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patvdleer opened this issue Sep 10, 2018 · 10 comments
Closed

ESP32 - failed to build on machine_rtc #4117

patvdleer opened this issue Sep 10, 2018 · 10 comments

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@patvdleer
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I've summed up my actions here:

(skipping the ESP8266)

https://gist.github.com/patvdleer/7ba89a650791ae5c4b0f583760be15d1

In file included from machine_rtc.c:36:
machine_rtc.c:126:34: error: 'machine_rtc_init_obj' defined but not used [-Werror=unused-const-variable=]
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_rtc_init_obj, machine_rtc_init);
                                  ^~~~~~~~~~~~~~~~~~~~
../../py/obj.h:287:38: note: in definition of macro 'MP_DEFINE_CONST_FUN_OBJ_2'
     const mp_obj_fun_builtin_fixed_t obj_name = \
                                      ^~~~~~~~
cc1: all warnings being treated as errors
../../py/mkrules.mk:47: recipe for target 'build/machine_rtc.o' failed
make: *** [build/machine_rtc.o] Error 1
@adritium
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adritium commented Sep 10, 2018 •
edited

Seems like it belongs on the forum.

https://forum.micropython.org/index.php

@patvdleer
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patvdleer commented Sep 11, 2018 •
edited

But this is default code, I haven't made any changes

@patvdleer
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Checking out v1.9.4 gives me the same result

patrick@patrick-X470:~/git/micropython$ git checkout v1.9.4 

...

HEAD is now at 421b84af9 docs: Bump version to 1.9.4.
patrick@patrick-X470:~/git/micropython$ cd ports/esp32/
patrick@patrick-X470:~/git/micropython/ports/esp32$ make
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
** WARNING **
The git hash of ESP IDF does not match the supported version
The build may complete and the firmware may work but it is not guaranteed
ESP IDF path:       /home/patrick/git/esp-idf
Current git hash:   30545f4cccec7460634b656d278782dd7151098e
Supported git hash: 3ede9f011b50999b0560683f9419538c066dd09e
GEN build/genhdr/mpversion.h
GEN build/genhdr/qstr.i.last
../../extmod/modussl_mbedtls.c:38:10: fatal error: mbedtls/platform.h: No such file or directory
 #include "mbedtls/platform.h"
          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
moduhashlib.c:28:10: fatal error: mbedtls/sha256.h: No such file or directory
 #include "mbedtls/sha256.h"
          ^~~~~~~~~~~~~~~~~~
compilation terminated.
../../py/mkrules.mk:70: recipe for target 'build/genhdr/qstr.i.last' failed
make: *** [build/genhdr/qstr.i.last] Error 1
make: *** Deleting file 'build/genhdr/qstr.i.last'

patrick@patrick-X470:~/git/esp-idf$ git checkout 3ede9f011b50999b0560683f9419538c066dd09e
warning: unable to rmdir 'components/asio/asio': Directory not empty
warning: unable to rmdir 'components/expat/expat': Directory not empty
warning: unable to rmdir 'components/mbedtls/mbedtls': Directory not empty
M	components/aws_iot/aws-iot-device-sdk-embedded-C
M	components/bt/lib
M	components/esp32/lib
M	components/esptool_py/esptool
M	components/micro-ecc/micro-ecc
Previous HEAD position was 30545f4c Merge branch 'bugfix/btdm_fix_get_bond_list_error_when_connection_with_no_bond' into 'master'
HEAD is now at 3ede9f01 Merge branch 'feature/openssl_cacert' into 'master'

# back to micropython

patrick@patrick-X470:~/git/micropython/ports/esp32$ make

In file included from machine_rtc.c:36:
machine_rtc.c:126:34: error: 'machine_rtc_init_obj' defined but not used [-Werror=unused-const-variable=]
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_rtc_init_obj, machine_rtc_init);
                                  ^~~~~~~~~~~~~~~~~~~~
../../py/obj.h:280:38: note: in definition of macro 'MP_DEFINE_CONST_FUN_OBJ_2'
     const mp_obj_fun_builtin_fixed_t obj_name = \
                                      ^~~~~~~~
cc1: all warnings being treated as errors
../../py/mkrules.mk:47: recipe for target 'build/machine_rtc.o' failed
make: *** [build/machine_rtc.o] Error 1

@robert-hh
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Please

  • move in your esp-idf directory /home/patrick/git/esp-idf
  • issue the command: git checkout 3ede9f011b50999b0560683f9419538c066dd09e
  • issue the command: git submodule update --init --recursive
  • go to the ESP32 directory and issue the command make clean
    and then try to build the esp32 firmware again.

@patvdleer
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patrick@patrick-X470:~$ cd /home/patrick/git/esp-idf
patrick@patrick-X470:~/git/esp-idf$ git checkout 3ede9f011b50999b0560683f9419538c066dd09e
M	components/aws_iot/aws-iot-device-sdk-embedded-C
M	components/bt/lib
M	components/esp32/lib
M	components/esptool_py/esptool
M	components/micro-ecc/micro-ecc
HEAD is now at 3ede9f01 Merge branch 'feature/openssl_cacert' into 'master'
patrick@patrick-X470:~/git/esp-idf$ git submodule update --init --recursive
Submodule path 'components/aws_iot/aws-iot-device-sdk-embedded-C': checked out '8bf852db77c360eebfa4b800754fdb90e29ea43e'
Submodule path 'components/bt/lib': checked out '0575731e349ca54b46cfc084a752790c1ddcdbba'
Submodule path 'components/esp32/lib': checked out '898cc43904003cdf8e19fe6bb8dc50c629d09eff'
Submodule path 'components/esptool_py/esptool': checked out '200ab6e39487bef1df9db12a5be5b0682d80d3c1'
Submodule path 'components/micro-ecc/micro-ecc': checked out '14222e062d77f45321676e813d9525f32a88e8fa'
patrick@patrick-X470:~/git/esp-idf$ cd ../micropython/ports/esp32/
patrick@patrick-X470:~/git/micropython/ports/esp32$ make clean
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
rm -rf build 
patrick@patrick-X470:~/git/micropython/ports/esp32$ make
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
mkdir -p build/bootloader//home/patrick/git/esp-idf/components/bootloader/subproject/main/
mkdir -p build/bootloader//home/patrick/git/esp-idf/components/bootloader_support/src/
mkdir -p build/bootloader//home/patrick/git/esp-idf/components/log/
mkdir -p build/bootloader//home/patrick/git/esp-idf/components/micro-ecc/micro-ecc/
mkdir -p build/bootloader//home/patrick/git/esp-idf/components/soc/esp32/
mkdir -p build/bootloader//home/patrick/git/esp-idf/components/spi_flash/
CC /home/patrick/git/esp-idf/components/bootloader_support/src/bootloader_clock.c
CC /home/patrick/git/esp-idf/components/bootloader_support/src/bootloader_flash.c
CC /home/patrick/git/esp-idf/components/bootloader_support/src/bootloader_random.c
CC /home/patrick/git/esp-idf/components/bootloader_support/src/bootloader_sha.c
CC /home/patrick/git/esp-idf/components/bootloader_support/src/secure_boot_signatures.c
CC /home/patrick/git/esp-idf/components/bootloader_support/src/secure_boot.c
CC /home/patrick/git/esp-idf/components/bootloader_support/src/esp_image_format.c
CC /home/patrick/git/esp-idf/components/bootloader_support/src/flash_encrypt.c
CC /home/patrick/git/esp-idf/components/bootloader_support/src/flash_partitions.c
CC /home/patrick/git/esp-idf/components/log/log.c
CC /home/patrick/git/esp-idf/components/spi_flash/spi_flash_rom_patch.c
CC /home/patrick/git/esp-idf/components/soc/esp32/rtc_clk.c
CC /home/patrick/git/esp-idf/components/soc/esp32/rtc_time.c
CC /home/patrick/git/esp-idf/components/micro-ecc/micro-ecc/uECC.c
CC /home/patrick/git/esp-idf/components/bootloader/subproject/main/bootloader_start.c
LINK build/bootloader.elf
Create build/bootloader.bin
esptool.py v2.2.1
Create build/partitions.bin
mkdir -p build/genhdr
GEN build/genhdr/mpversion.h
GEN build/genhdr/qstr.i.last
GEN build/genhdr/qstr.split
GEN build/genhdr/qstrdefs.collected.h
QSTR updated
GEN build/genhdr/qstrdefs.generated.h
mkdir -p build//home/patrick/git/esp-idf/components/app_trace/
mkdir -p build//home/patrick/git/esp-idf/components/app_update/
mkdir -p build//home/patrick/git/esp-idf/components/cxx/
mkdir -p build//home/patrick/git/esp-idf/components/driver/
mkdir -p build//home/patrick/git/esp-idf/components/esp32/
mkdir -p build//home/patrick/git/esp-idf/components/esp32/hwcrypto/
mkdir -p build//home/patrick/git/esp-idf/components/ethernet/
mkdir -p build//home/patrick/git/esp-idf/components/ethernet/eth_phy/
mkdir -p build//home/patrick/git/esp-idf/components/expat/library/
mkdir -p build//home/patrick/git/esp-idf/components/expat/port/
mkdir -p build//home/patrick/git/esp-idf/components/freertos/
mkdir -p build//home/patrick/git/esp-idf/components/heap/
mkdir -p build//home/patrick/git/esp-idf/components/json/cJSON/
mkdir -p build//home/patrick/git/esp-idf/components/log/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/api/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/apps/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/apps/sntp/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/core/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/core/ipv4/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/core/ipv6/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/netif/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/port/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/port/freertos/
mkdir -p build//home/patrick/git/esp-idf/components/lwip/port/netif/
mkdir -p build//home/patrick/git/esp-idf/components/mbedtls/library/
mkdir -p build//home/patrick/git/esp-idf/components/mbedtls/port/
mkdir -p build//home/patrick/git/esp-idf/components/newlib/
mkdir -p build//home/patrick/git/esp-idf/components/nghttp/nghttp2/lib/
mkdir -p build//home/patrick/git/esp-idf/components/nghttp/port/
mkdir -p build//home/patrick/git/esp-idf/components/nvs_flash/src/
mkdir -p build//home/patrick/git/esp-idf/components/pthread/
mkdir -p build//home/patrick/git/esp-idf/components/soc/esp32/
mkdir -p build//home/patrick/git/esp-idf/components/spi_flash/
mkdir -p build//home/patrick/git/esp-idf/components/tcpip_adapter/
mkdir -p build//home/patrick/git/esp-idf/components/ulp/
mkdir -p build//home/patrick/git/esp-idf/components/vfs/
mkdir -p build//home/patrick/git/esp-idf/components/wpa_supplicant/port/
mkdir -p build//home/patrick/git/esp-idf/components/wpa_supplicant/src/crypto/
mkdir -p build//home/patrick/git/esp-idf/components/wpa_supplicant/src/fast_crypto/
mkdir -p build//home/patrick/git/esp-idf/components/xtensa-debug-module/
mkdir -p build/build/
mkdir -p build/drivers/bus/
mkdir -p build/drivers/dht/
mkdir -p build/extmod/
mkdir -p build/lib/berkeley-db-1.xx/btree/
mkdir -p build/lib/berkeley-db-1.xx/mpool/
mkdir -p build/lib/embed/
mkdir -p build/lib/libm/
mkdir -p build/lib/mp-readline/
mkdir -p build/lib/netutils/
mkdir -p build/lib/oofatfs/
mkdir -p build/lib/oofatfs/option/
mkdir -p build/lib/timeutils/
mkdir -p build/lib/utils/
mkdir -p build/py/
CC ../../py/mpstate.c
CC ../../py/nlr.c
CC ../../py/nlrx86.c
CC ../../py/nlrx64.c
CC ../../py/nlrthumb.c
CC ../../py/nlrxtensa.c
CC ../../py/nlrsetjmp.c
CC ../../py/malloc.c
CC ../../py/gc.c
CC ../../py/pystack.c
CC ../../py/qstr.c
CC ../../py/vstr.c
CC ../../py/mpprint.c
CC ../../py/unicode.c
CC ../../py/mpz.c
CC ../../py/reader.c
CC ../../py/lexer.c
CC ../../py/parse.c
CC ../../py/scope.c
CC ../../py/compile.c
CC ../../py/emitcommon.c
CC ../../py/emitbc.c
CC ../../py/asmbase.c
CC ../../py/asmx64.c
CC ../../py/emitnx64.c
CC ../../py/asmx86.c
CC ../../py/emitnx86.c
CC ../../py/asmthumb.c
CC ../../py/emitnthumb.c
CC ../../py/emitinlinethumb.c
CC ../../py/asmarm.c
CC ../../py/emitnarm.c
CC ../../py/asmxtensa.c
CC ../../py/emitnxtensa.c
CC ../../py/emitinlinextensa.c
CC ../../py/formatfloat.c
CC ../../py/parsenumbase.c
CC ../../py/parsenum.c
CC ../../py/emitglue.c
CC ../../py/persistentcode.c
CC ../../py/runtime.c
CC ../../py/runtime_utils.c
CC ../../py/scheduler.c
CC ../../py/nativeglue.c
CC ../../py/stackctrl.c
CC ../../py/argcheck.c
CC ../../py/warning.c
CC ../../py/map.c
CC ../../py/obj.c
CC ../../py/objarray.c
CC ../../py/objattrtuple.c
CC ../../py/objbool.c
CC ../../py/objboundmeth.c
CC ../../py/objcell.c
CC ../../py/objclosure.c
CC ../../py/objcomplex.c
CC ../../py/objdeque.c
CC ../../py/objdict.c
CC ../../py/objenumerate.c
CC ../../py/objexcept.c
CC ../../py/objfilter.c
CC ../../py/objfloat.c
CC ../../py/objfun.c
CC ../../py/objgenerator.c
CC ../../py/objgetitemiter.c
CC ../../py/objint.c
CC ../../py/objint_longlong.c
CC ../../py/objint_mpz.c
CC ../../py/objlist.c
CC ../../py/objmap.c
CC ../../py/objmodule.c
CC ../../py/objobject.c
CC ../../py/objpolyiter.c
CC ../../py/objproperty.c
CC ../../py/objnone.c
CC ../../py/objnamedtuple.c
CC ../../py/objrange.c
CC ../../py/objreversed.c
CC ../../py/objset.c
CC ../../py/objsingleton.c
CC ../../py/objslice.c
CC ../../py/objstr.c
CC ../../py/objstrunicode.c
CC ../../py/objstringio.c
CC ../../py/objtuple.c
CC ../../py/objtype.c
CC ../../py/objzip.c
CC ../../py/opmethods.c
CC ../../py/sequence.c
CC ../../py/stream.c
CC ../../py/binary.c
CC ../../py/builtinimport.c
CC ../../py/builtinevex.c
CC ../../py/builtinhelp.c
CC ../../py/modarray.c
CC ../../py/modbuiltins.c
CC ../../py/modcollections.c
CC ../../py/modgc.c
CC ../../py/modio.c
CC ../../py/modmath.c
CC ../../py/modcmath.c
CC ../../py/modmicropython.c
CC ../../py/modstruct.c
CC ../../py/modsys.c
CC ../../py/moduerrno.c
CC ../../py/modthread.c
CC ../../py/vm.c
CC ../../py/bc.c
CC ../../py/showbc.c
CC ../../py/repl.c
CC ../../py/smallint.c
CC ../../py/frozenmod.c
CC ../../extmod/moductypes.c
CC ../../extmod/modujson.c
CC ../../extmod/modure.c
CC ../../extmod/moduzlib.c
CC ../../extmod/moduheapq.c
CC ../../extmod/modutimeq.c
CC ../../extmod/moduhashlib.c
CC ../../extmod/modubinascii.c
CC ../../extmod/virtpin.c
CC ../../extmod/machine_mem.c
CC ../../extmod/machine_pinbase.c
CC ../../extmod/machine_signal.c
CC ../../extmod/machine_pulse.c
CC ../../extmod/machine_i2c.c
CC ../../extmod/machine_spi.c
CC ../../extmod/modussl_axtls.c
CC ../../extmod/modussl_mbedtls.c
CC ../../extmod/modurandom.c
CC ../../extmod/moduselect.c
CC ../../extmod/modwebsocket.c
CC ../../extmod/modwebrepl.c
CC ../../extmod/modframebuf.c
CC ../../extmod/vfs.c
CC ../../extmod/vfs_reader.c
CC ../../extmod/vfs_fat.c
CC ../../extmod/vfs_fat_diskio.c
CC ../../extmod/vfs_fat_file.c
CC ../../extmod/utime_mphal.c
CC ../../extmod/uos_dupterm.c
CC ../../lib/embed/abort_.c
CC ../../lib/utils/printf.c
MPY modules/ds18x20.py
MPY modules/upip_utarfile.py
MPY modules/apa106.py
MPY modules/onewire.py
MPY modules/dht.py
MPY modules/websocket_helper.py
MPY modules/flashbdev.py
MPY modules/inisetup.py
MPY modules/upip.py
MPY modules/ntptime.py
MPY modules/webrepl_setup.py
MPY modules/webrepl.py
MPY modules/neopixel.py
MPY modules/_boot.py
GEN build/frozen_mpy.c
CC build/frozen_mpy.c
CC main.c
CC uart.c
CC gccollect.c
CC mphalport.c
CC fatfs_port.c
CC help.c
CC modutime.c
CC moduos.c
CC machine_timer.c
CC machine_pin.c
CC machine_touchpad.c
CC machine_adc.c
CC machine_dac.c
CC machine_pwm.c
CC machine_uart.c
CC modmachine.c
CC modnetwork.c
CC network_lan.c
CC modsocket.c
CC modesp.c
CC esp32_ulp.c
CC modesp32.c
CC moduhashlib.c
CC espneopixel.c
CC machine_hw_spi.c
CC machine_wdt.c
CC mpthreadport.c
CC machine_rtc.c
In file included from machine_rtc.c:36:
machine_rtc.c:126:34: error: 'machine_rtc_init_obj' defined but not used [-Werror=unused-const-variable=]
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_rtc_init_obj, machine_rtc_init);
                                  ^~~~~~~~~~~~~~~~~~~~
../../py/obj.h:280:38: note: in definition of macro 'MP_DEFINE_CONST_FUN_OBJ_2'
     const mp_obj_fun_builtin_fixed_t obj_name = \
                                      ^~~~~~~~
cc1: all warnings being treated as errors
../../py/mkrules.mk:47: recipe for target 'build/machine_rtc.o' failed
make: *** [build/machine_rtc.o] Error 1

@adritium
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It's a bug: machine_rtc_datetime_obj is pasted twice so machine_rtc_init_obj is not used giving you

error: 'machine_rtc_init_obj' defined but not used

micropython/ports/esp32/machine_rtc.c

Lines 150 to 154 in b9ec603

STATIC const mp_rom_map_elem_t machine_rtc_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_rtc_datetime_obj) },
{ MP_ROM_QSTR(MP_QSTR_datetime), MP_ROM_PTR(&machine_rtc_datetime_obj) },
{ MP_ROM_QSTR(MP_QSTR_memory), MP_ROM_PTR(&machine_rtc_memory_obj) },
};

@patvdleer
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Author

I was able to fix this but it simply drops me into the next error...

/home/patrick/esp/esp-idf/components/driver/rtc_module.c:99:33: error: initialization of '_lock_t' {aka 'int'} from 'void *' makes integer from pointer without a cast [-Werror=int-conversion]
 static _lock_t adc2_wifi_lock = NULL;
                                 ^~~~
/home/patrick/esp/esp-idf/components/driver/rtc_module.c:104:32: error: initialization of '_lock_t' {aka 'int'} from 'void *' makes integer from pointer without a cast [-Werror=int-conversion]
 static _lock_t adc1_i2s_lock = NULL;
                                ^~~~
cc1: all warnings being treated as errors
../../py/mkrules.mk:47: recipe for target 'build//home/patrick/esp/esp-idf/components/driver/rtc_module.o' failed
make: *** [build//home/patrick/esp/esp-idf/components/driver/rtc_module.o] Error 1

@patvdleer
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patvdleer commented Sep 16, 2018 •
edited

Since I kept running into errors I simply updated the Makefile to the following:

micropython/ports/esp32/Makefile@96

CFLAGS_BASE = -std=gnu99 -Os -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -Wall -Werror -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-error=unused-const-variable -Wno-error=int-conversion -Wno-error=sizeof-pointer-memaccess -DMBEDTLS_CONFIG_FILE='"mbedtls/esp_config.h"' -DHAVE_CONFIG_H -DESP_PLATFORM
CFLAGS = $(CFLAGS_BASE) $(INC) $(INC_ESPCOMP)
CFLAGS += -DIDF_VER=\"$(IDF_VER)\"
CFLAGS += $(CFLAGS_MOD)

# this is what ESPIDF uses for c++ compilation
CXXFLAGS = -std=gnu++11 -fno-exceptions -fno-rtti -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -Wall -Werror -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-error=parentheses -Wno-error=sizeof-pointer-memaccess -DESP_PLATFORM $(INC) $(INC_ESPCOMP)

This eventually gives me a fail:

LINK build/application.elf
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o:(.literal.emac_process_rx$part$0+0x10): undefined reference to `emac_enable_rx_intr'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o:(.literal.esp_eth_free_rx_buf+0x18): undefined reference to `emac_send_pause_zero_frame_enable'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o:(.literal.emac_task+0x10): undefined reference to `emac_enable_rx_unavail_intr'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o:(.iram1.literal+0x1c): undefined reference to `emac_disable_rx_intr'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o:(.iram1.literal+0x20): undefined reference to `emac_send_pause_frame_enable'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o:(.iram1.literal+0x24): undefined reference to `emac_disable_rx_unavail_intr'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o: In function `emac_process_rx$part$0':
emac_main.c:(.text.emac_process_rx$part$0+0x6c): undefined reference to `emac_enable_rx_intr'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o: In function `esp_eth_free_rx_buf':
emac_main.c:(.text.esp_eth_free_rx_buf+0x97): undefined reference to `emac_send_pause_zero_frame_enable'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o: In function `emac_task':
emac_main.c:(.text.emac_task+0xc1): undefined reference to `emac_enable_rx_intr'
emac_main.c:(.text.emac_task+0xc7): undefined reference to `emac_enable_rx_unavail_intr'
build//home/patrick/esp/esp-idf/components/ethernet/emac_main.o: In function `emac_process_intr':
emac_main.c:(.iram1+0x87): undefined reference to `emac_disable_rx_intr'
emac_main.c:(.iram1+0xc4): undefined reference to `emac_send_pause_frame_enable'
emac_main.c:(.iram1+0xd4): undefined reference to `emac_disable_rx_unavail_intr'
/home/patrick/esp/esp-idf/components/esp32/lib/libcoexist.a(coexist_api.o):(.iram1+0x8): undefined reference to `coexist_printf'
/home/patrick/esp/esp-idf/components/esp32/lib/libcoexist.a(coexist_api.o): In function `coex_wifi_request':
(.iram1+0x1f): undefined reference to `coexist_printf'
(.iram1+0x4f): undefined reference to `coexist_printf'
/home/patrick/esp/esp-idf/components/esp32/lib/libcoexist.a(coexist_api.o): In function `coex_wifi_release':
(.iram1+0x7b): undefined reference to `coexist_printf'
/home/patrick/esp/esp-idf/components/esp32/lib/libcoexist.a(coexist_api.o): In function `coex_bt_request':
(.iram1+0xab): undefined reference to `coexist_printf'
/home/patrick/esp/esp-idf/components/esp32/lib/libcoexist.a(coexist_core.o):(.iram1+0xc3): more undefined references to `coexist_printf' follow
/home/patrick/esp/esp-idf/components/esp32/lib/libnet80211.a(ieee80211_api.o):(.text.esp_wifi_scan_get_ap_records+0x8): undefined reference to `esp_mesh_is_scan_allowed'
/home/patrick/esp/esp-idf/components/esp32/lib/libnet80211.a(ieee80211_api.o): In function `esp_wifi_scan_get_ap_records':
(.text.esp_wifi_scan_get_ap_records+0x100): undefined reference to `esp_mesh_is_scan_allowed'
Makefile:663: recipe for target 'build/application.elf' failed
make: *** [build/application.elf] Error 1

@patvdleer patvdleer reopened this Sep 16, 2018
@patvdleer
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All warnings/errors suppressed:

machine_rtc.c:126:34: warning: 'machine_rtc_init_obj' defined but not used [-Wunused-const-variable=]
 STATIC MP_DEFINE_CONST_FUN_OBJ_2(machine_rtc_init_obj, machine_rtc_init);
                                  ^~~~~~~~~~~~~~~~~~~~
../../py/obj.h:280:38: note: in definition of macro 'MP_DEFINE_CONST_FUN_OBJ_2'
     const mp_obj_fun_builtin_fixed_t obj_name = \
                                      ^~~~~~~~
/home/patrick/esp/esp-idf/components/driver/rtc_module.c:99:33: warning: initialization of '_lock_t' {aka 'int'} from 'void *' makes integer from pointer without a cast [-Wint-conversion]
 static _lock_t adc2_wifi_lock = NULL;
                                 ^~~~
/home/patrick/esp/esp-idf/components/driver/rtc_module.c:104:32: warning: initialization of '_lock_t' {aka 'int'} from 'void *' makes integer from pointer without a cast [-Wint-conversion]
 static _lock_t adc1_i2s_lock = NULL;
                                ^~~~
In file included from /home/patrick/esp/esp-idf/components/newlib/include/stdlib.h:18,
                 from /home/patrick/esp/esp-idf/components/cxx/cxx_guards.cpp:15:
/home/patrick/esp/esp-idf/components/newlib/include/sys/reent.h:405:11: warning: unnecessary parentheses in declaration of '_sig_func' [-Wparentheses]
   void (**(_sig_func))(int);
           ^
In file included from /home/patrick/esp/esp-idf/components/newlib/include/stdio.h:47,
                 from /home/patrick/esp/esp-idf/components/esp32/include/esp_err.h:17,
                 from /home/patrick/esp/esp-idf/components/nvs_flash/include/nvs.h:20,
                 from /home/patrick/esp/esp-idf/components/nvs_flash/src/nvs_page.hpp:17,
                 from /home/patrick/esp/esp-idf/components/nvs_flash/src/nvs_page.cpp:14:
/home/patrick/esp/esp-idf/components/newlib/include/sys/reent.h:405:11: warning: unnecessary parentheses in declaration of '_sig_func' [-Wparentheses]
   void (**(_sig_func))(int);
           ^
In file included from /home/patrick/esp/esp-idf/components/newlib/include/stdio.h:47,
                 from /home/patrick/esp/esp-idf/components/esp32/include/esp_err.h:17,
                 from /home/patrick/esp/esp-idf/components/nvs_flash/include/nvs.h:20,
                 from /home/patrick/esp/esp-idf/components/nvs_flash/src/nvs_item_hash_list.hpp:18,
                 from /home/patrick/esp/esp-idf/components/nvs_flash/src/nvs_item_hash_list.cpp:15:
/home/patrick/esp/esp-idf/components/newlib/include/sys/reent.h:405:11: warning: unnecessary parentheses in declaration of '_sig_func' [-Wparentheses]
   void (**(_sig_func))(int);
           ^
/home/patrick/esp/esp-idf/components/spi_flash/partition.c: In function 'load_partitions':
/home/patrick/esp/esp-idf/components/spi_flash/partition.c:179:66: warning: argument to 'sizeof' in 'strncpy' call is the same expression as the source; did you mean to use the size of the destination? [-Wsizeof-pointer-memaccess]
         strncpy(item->info.label, (const char*) it->label, sizeof(it->label));

@dpgeorge
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The warning with machine_rtc_init_obj is fixed in 1857165

The other warnings are within the ESP IDF itself so can't be fixed here. It looks like you are using a custom toolchain built from source, not the precompiled one from Espressif, so that could be the issue. I'd suggest trying their provided compiler.

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@patvdleer @dpgeorge @robert-hh @adritium