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zephyrproject-rtos / zephyr

Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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west build error after while "getting started" on ESP32 #25183

Closed lenhart closed 4 years ago

lenhart commented 4 years ago

Describe the bug When following the getting started guide I encounter the error:

No such file or directory: LIBGCC_FILE_NAME: ''
Call Stack (most recent call first):
  /home/.../zephyrproject/zephyr/cmake/compiler/gcc/target.cmake:69 (assert_exists)

which looks similar to #8977 and #23418. However the toolchain seems to be right and the build tools changed or differ from the above mentioned issues (see below for my west output). I tried the suggested comments there, but most did not yield more information because the tool paths/setup has changed as it seems.

I hope I did not miss anything obvious here, am greatful for help, and will happily provide more information.

To Reproduce follow the getting started guide

Expected behavior successful build

Impact does not work

Screenshots or console output

Including boilerplate (Zephyr base (cached)): /home/.../zephyrproject/zephyr/cmake/app/boilerplate.cmake
-- Application: /home/.../zephyrproject/zephyr/samples/hello_world
-- Zephyr version: 2.2.99 (/home/.../zephyrproject/zephyr)
-- Board: esp32
-- Found west: /home/.../.local/bin/west (found suitable version "0.7.2", minimum required is "0.7.1")
-- Found dtc: /home/.../zephyr-sdk-0.11.2/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.5.0", minimum required is "1.4.6")
-- Found toolchain: zephyr (/home/.../zephyr-sdk-0.11.2)
-- Found BOARD.dts: /home/.../zephyrproject/zephyr/boards/xtensa/esp32/esp32.dts
-- Generated zephyr.dts: /home/.../zephyrproject/zephyr/build/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /home/.../zephyrproject/zephyr/build/zephyr/include/generated/devicetree_unfixed.h
Parsing /home/.../zephyrproject/zephyr/Kconfig
Loaded configuration '/home/.../zephyrproject/zephyr/build/zephyr/.config'
No change to configuration in '/home/.../zephyrproject/zephyr/build/zephyr/.config'
No change to Kconfig header in '/home/.../zephyrproject/zephyr/build/zephyr/include/generated/autoconf.h'
CMake Error at /home/.../zephyrproject/zephyr/cmake/extensions.cmake:1479 (message):
  No such file or directory: LIBGCC_FILE_NAME: ''
Call Stack (most recent call first):
  /home/.../zephyrproject/zephyr/cmake/compiler/gcc/target.cmake:65 (assert_exists)
  /home/.../zephyrproject/zephyr/cmake/target_toolchain.cmake:49 (include)
  /home/.../zephyrproject/zephyr/cmake/app/boilerplate.cmake:516 (include)
  /home/.../zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  /home/.../zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:40 (include_boilerplate)
  CMakeLists.txt:5 (find_package)

Environment (please complete the following information):

Additional context Before that I also had the error message ERROR: ld.so: object 'libgtk3-nocsd.so.0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored. which I fixed w/ the additon of export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0 to .zephyrrc as suggested in this stackoverflow question (is this something common or did I do something wrong? Maybe it could be added to the getting started if it is the first case)

Thanks for the great work :-)

carlescufi commented 4 years ago

@lenhart it would really help if you wrote what sample you were trying to build for which board, and the exact command-line command you issued.

lenhart commented 4 years ago

@carlescufi oh, you are absolutely right, I am sorry for that.

I am building for the esp32 w/ west build -p auto -b esp32 samples/hello_world

Now I re-read the board page and saw that I missed the board specific setup path (I was just looking for the board name before). Alright, did that now but am greeted with a new error. It finds the zephyr and esp toolchains but still complains that Zephyr was unable to find the toolchain. Is the environment misconfigured? -> output below

Is there a better place to ask questions than here? This is probably not a bug but a problem at my side (although the export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libgtk3-nocsd.so.0 was still needed to get so far)

Thanks and best regards!

Including boilerplate (Zephyr base (cached)): /home/.../zephyrproject/zephyr/cmake/app/boilerplate.cmake
-- Application: /home/.../zephyrproject/zephyr/samples/hello_world
-- Zephyr version: 2.2.99 (/home/.../zephyrproject/zephyr)
-- Board: esp32
-- Found toolchain: zephyr (/home/.../zephyr-sdk-0.11.2)
-- Found west: /home/.../.local/bin/west (found suitable version "0.7.2", minimum required is "0.7.1")
-- Found dtc: /home/.../zephyr-sdk-0.11.2/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.5.0", minimum required is "1.4.6")
-- Found toolchain: espressif (/home/.../.espressif/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/xtensa-esp32-elf)
CMake Error at /home/.../zephyrproject/zephyr/cmake/compiler/gcc/generic.cmake:8 (message):
  Zephyr was unable to find the toolchain.  Is the environment misconfigured?

  User-configuration:

  ZEPHYR_TOOLCHAIN_VARIANT: espressif

  Internal variables:

  CROSS_COMPILE:
  /home/.../.espressif/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/xtensa-esp32-elf/bin/xtensa-esp32-elf-

  TOOLCHAIN_HOME:
  /home/.../.espressif/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/xtensa-esp32-elf

Call Stack (most recent call first):
  /home/.../zephyrproject/zephyr/cmake/generic_toolchain.cmake:70 (include)
  /home/.../zephyrproject/zephyr/cmake/app/boilerplate.cmake:502 (include)
  /home/.../zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  /home/.../zephyrproject/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:40 (include_boilerplate)
  CMakeLists.txt:5 (find_package)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/bin/cmake -B/home/.../zephyrproject/zephyr/build -S/home/.../zephyrproject/zephyr/samples/hello_world -GNinja
carlescufi commented 4 years ago

Not quite sure what is going on, but I see that the xtensa toolchain you are trying to use is not listed here

Have you tried using the Zephyr SDK instead?

Is there a better place to ask questions than here?

Sure, join our Slack

dcpleung commented 4 years ago

Are you using the Espressif ESP32 toolchain? If so, is the environment ESPRESSIF_TOOLCHAIN_PATH set according to https://docs.zephyrproject.org/latest/boards/xtensa/esp32/doc/index.html?highlight=espressif_toolchain_path ?

lenhart commented 4 years ago

Thank you both!

@carlescufi : with using the zephyr you mean w/o the esp32 specific environment variables or by replacing esp32 with zephyr again in the .zephyrrc? Then I get the error from the first post. I shouldn't have to use Crosstool-NG because from the esp32 page it looks as if there is a flavour for the espressif toolchain? Could it be that that is just missing in the 3rd party toolchain page?

@dcpleung yes, I set it according to the documentation. Although it is a bit confusing because the instruction is export ESPRESSIF_TOOLCHAIN_PATH="/path/to/xtensa-esp32-elf/" and the path is /.espressif/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/xtensa-esp32-elf/ so there are multiple occurences of xtensa-esp32-elf (using the upper layer folder, the error from the first post occurs). Testet all variants including using the bin folder..

I noticed an other issue here: -p auto seems not to clear everything, does it? I have to manually remove the build folder in order for changes to ~/.zephyrrc to take effect (and source it of course)

dcpleung commented 4 years ago

The installation path has changed quite a bit since the documentation is first written, so that needs to be updated.

IIRC, -p always will clean out the build directory every time.

nashif commented 4 years ago

This was broken by:

commit 299a154fddfee098232fef804a5041e82344d527
Author: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Date:   Mon Apr 6 23:15:39 2020 +0200

    cmake: Zephyr sdk package handling

@tejlmand ^^

pabigot commented 4 years ago

I confirm the problem and the introduction of it in 299a154fddfee098232fef804a5041e82344d527. I do set ZEPHYR_BASE in my environment. The build trace I get is:

tirzah[9]$ rm -rf build && west build -b esp32
-- west build: generating a build system
Including boilerplate (Zephyr base): /mnt/nordic/zp/zephyr/cmake/app/boilerplate.cmake
-- Application: /mnt/nordic/zp/zephyr/samples/hello_world
-- Zephyr version: 2.2.99 (/mnt/nordic/zp/zephyr)
-- Found Python3: /usr/bin/python3.8 (found suitable exact version "3.8.2") found components: Interpreter 
-- Board: esp32
-- Found toolchain: zephyr (/usr/local/zephyr-sdk-0.11.3-beta-1-pr-210)
-- Found west: /home/pab/.local/bin/west (found suitable version "0.7.2", minimum required is "0.7.1")
-- Found dtc: /usr/local/zephyr-sdk-0.11.3-beta-1-pr-210/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.5.0", minimum required is "1.4.6")
-- Found BOARD.dts: /mnt/nordic/zp/zephyr/boards/xtensa/esp32/esp32.dts
-- Generated zephyr.dts: /mnt/nordic/zp/zephyr/samples/hello_world/build/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /mnt/nordic/zp/zephyr/samples/hello_world/build/zephyr/include/generated/devicetree_unfixed.h
Parsing /mnt/nordic/zp/zephyr/Kconfig
Loaded configuration '/mnt/nordic/zp/zephyr/boards/xtensa/esp32/esp32_defconfig'
Merged configuration '/mnt/nordic/zp/zephyr/samples/hello_world/prj.conf'
Configuration saved to '/mnt/nordic/zp/zephyr/samples/hello_world/build/zephyr/.config'
Kconfig header saved to '/mnt/nordic/zp/zephyr/samples/hello_world/build/zephyr/include/generated/autoconf.h'
CMake Error at /mnt/nordic/zp/zephyr/cmake/extensions.cmake:1479 (message):
  No such file or directory: LIBGCC_FILE_NAME: ''
Call Stack (most recent call first):
  /mnt/nordic/zp/zephyr/cmake/compiler/gcc/target.cmake:65 (assert_exists)
  /mnt/nordic/zp/zephyr/cmake/target_toolchain.cmake:49 (include)
  /mnt/nordic/zp/zephyr/cmake/app/boilerplate.cmake:516 (include)
  /mnt/nordic/zp/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  /mnt/nordic/zp/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:35 (include_boilerplate)
  CMakeLists.txt:5 (find_package)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/bin/cmake -B/mnt/nordic/zp/zephyr/samples/hello_world/build -S/mnt/nordic/zp/zephyr/samples/hello_world -GNinja -DBOARD=esp32
carlescufi commented 4 years ago

@tejlmand could you please propose a fix?

tejlmand commented 4 years ago

Looking at it.

tejlmand commented 4 years ago

Still investigating, but just tried to take the commit BEFORE https://github.com/zephyrproject-rtos/zephyr/commit/299a154fddfee098232fef804a5041e82344d527 which is https://github.com/zephyrproject-rtos/zephyr/commit/6789ecbd5e13cc19e69f25314cf486493df9dde3 .

And I still get: 

> git checkout 299a154~1
HEAD is now at 6789ecbd5e usb: samples: Add USB Audio Headset sample
> west update > /dev/null 
HEAD is now at 542b229 DSP: Integrate CMSIS-DSP 1.8.0 (CMSIS 5.7.0)
HEAD is now at 1fe96f0 samv71: patch: Fix GMAC priority queue register offsets
...
> rm -rf build; west build -b esp32
-- west build: generating a build system
Including boilerplate (Zephyr base): /projects/github/ncs/zephyr/cmake/app/boilerplate.cmake
-- Application: /projects/github/ncs/zephyr/samples/hello_world
-- Zephyr version: 2.2.99 (/projects/github/ncs/zephyr)
-- Found Python3: /usr/bin/python3.6 (found suitable exact version "3.6.9") found components: Interpreter 
-- Board: esp32
-- Found west: /home/tora/.local/bin/west (found suitable version "0.7.2", minimum required is "0.7.1")
-- Found dtc: /opt/zephyr-sdk/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.5.0", minimum required is "1.4.6")
-- Found toolchain: zephyr (/opt/zephyr-sdk)
-- Found BOARD.dts: /projects/github/ncs/zephyr/boards/xtensa/esp32/esp32.dts
-- Generated zephyr.dts: /projects/github/ncs/zephyr/samples/hello_world/build/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /projects/github/ncs/zephyr/samples/hello_world/build/zephyr/include/generated/devicetree_unfixed.h
Parsing /projects/github/ncs/zephyr/Kconfig
Loaded configuration '/projects/github/ncs/zephyr/boards/xtensa/esp32/esp32_defconfig'
Merged configuration '/projects/github/ncs/zephyr/samples/hello_world/prj.conf'
Configuration saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/.config'
Kconfig header saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/include/generated/autoconf.h'
CMake Error at /projects/github/ncs/zephyr/cmake/extensions.cmake:1479 (message):
  No such file or directory: LIBGCC_FILE_NAME: ''
Call Stack (most recent call first):
  /projects/github/ncs/zephyr/cmake/compiler/gcc/target.cmake:65 (assert_exists)
  /projects/github/ncs/zephyr/cmake/target_toolchain.cmake:49 (include)
  /projects/github/ncs/zephyr/cmake/app/boilerplate.cmake:516 (include)
  /projects/github/ncs/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  /projects/github/ncs/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:35 (include_boilerplate)
  CMakeLists.txt:5 (find_package)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/bin/cmake -B/projects/github/ncs/zephyr/samples/hello_world/build -S/projects/github/ncs/zephyr/samples/hello_world -GNinja -DBOARD=Parsing /projects/github/ncs/zephyr/Kconfig
Loaded configuration '/projects/github/ncs/zephyr/boards/xtensa/esp32/esp32_defconfig'
Merged configuration '/projects/github/ncs/zephyr/samples/hello_world/prj.conf'
Configuration saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/.config'
Kconfig header saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/include/generated/autoconf.h'
CMake Error at /projects/github/ncs/zephyr/cmake/extensions.cmake:1479 (message):
  No such file or directory: LIBGCC_FILE_NAME: ''
Call Stack (most recent call first):
  /projects/github/ncs/zephyr/cmake/compiler/gcc/target.cmake:65 (assert_exists)
  /projects/github/ncs/zephyr/cmake/target_toolchain.cmake:49 (include)
  /projects/github/ncs/zephyr/cmake/app/boilerplate.cmake:516 (include)
  /projects/github/ncs/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:24 (include)
  /projects/github/ncs/zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:35 (include_boilerplate)
  CMakeLists.txt:5 (find_package)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/bin/cmake -B/projects/github/ncs/zephyr/samples/hello_world/build -S/projects/github/ncs/zephyr/samples/hello_world -GNinja -DBOARD=esp32

@pabigot can you confirm that this is actually still happening on earlier commits ?

tejlmand commented 4 years ago

@pabigot @nashif To me, it appears that this happened with Zephyr SDK 0.11.1 in this commit: https://github.com/zephyrproject-rtos/zephyr/commit/5267a5e80976086be0b2188d0f0e3b49b53ae6e1

$ git checkout 5267a5e80976086be0b2188d0f0e3b49b53ae6e1
Previous HEAD position was 47ec94a662 ci: Bump docker image and SDK support to 0.11.1
HEAD is now at 5267a5e809 toolchain: Bump min SDK version to 0.11.1
$ rm -rf build; west build -b esp32

 -- west build: build configuration:
       source directory: /projects/github/ncs/zephyr/samples/hello_world
       build directory: /projects/github/ncs/zephyr/samples/hello_world/build (created)
       BOARD: esp32 (origin: command line)
-- west build: generating a build system
-- Zephyr version: 2.1.99
-- Found PythonInterp: /usr/bin/python3.6 (found suitable version "3.6.9", minimum required is "3.6") 
-- Selected BOARD esp32
-- Found west: /home/tora/.local/bin/west (found suitable version "0.7.2", minimum required is "0.6.0")
-- Loading /projects/github/ncs/zephyr/boards/xtensa/esp32/esp32.dts as base
Devicetree header saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/include/generated/devicetree_unfixed.h'
Parsing /projects/github/ncs/zephyr/Kconfig
Loaded configuration '/projects/github/ncs/zephyr/boards/xtensa/esp32/esp32_defconfig'
Merged configuration '/projects/github/ncs/zephyr/samples/hello_world/prj.conf'
Configuration saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/.config'
Kconfig header saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/include/generated/autoconf.h'

warning: ENTROPY_ESP32_RNG (defined at drivers/entropy/Kconfig.esp32:6) was assigned the value 'y'
but got the value 'n'. Check these unsatisfied dependencies: ENTROPY_GENERATOR (=n). See
http://docs.zephyrproject.org/latest/reference/kconfig/CONFIG_ENTROPY_ESP32_RNG.html and/or look up
ENTROPY_ESP32_RNG in the menuconfig/guiconfig interface. The Application Development Primer, Setting
Configuration Values, and Kconfig - Tips and Best Practices sections of the manual might be helpful
too.

CMake Error at /projects/github/ncs/zephyr/cmake/extensions.cmake:1479 (message):
  No such file or directory: LIBGCC_FILE_NAME: ''
Call Stack (most recent call first):
  /projects/github/ncs/zephyr/cmake/compiler/gcc/target.cmake:69 (assert_exists)
  /projects/github/ncs/zephyr/cmake/target_toolchain.cmake:49 (include)
  /projects/github/ncs/zephyr/cmake/app/boilerplate.cmake:473 (include)
  CMakeLists.txt:5 (include)

-- Configuring incomplete, errors occurred!
FATAL ERROR: command exited with status 1: /usr/bin/cmake -B/projects/github/ncs/zephyr/samples/hello_world/build -S/projects/github/ncs/zephyr/samples/hello_world -GNinja -DBOARD=esp32
$
tejlmand commented 4 years ago

@galak ^^^

tejlmand commented 4 years ago

@lenhart @pabigot Seems like it doesn't find the C compiler. Could you try to check the value in the CMakeCache.txt in build folder.

$ cat build/CMakeCache.txt |grep CMAKE_C_COMPILER
CMAKE_C_COMPILER:FILEPATH=CMAKE_C_COMPILER-NOTFOUND
tejlmand commented 4 years ago

Zephyr SDK does not contain xtensa-esp32-elf-gcc, and hence ZEPHYR_TOOLCHAIN_VARIANT=zephyr will not work.

If setting up the espressif toolchain according to: https://docs.zephyrproject.org/latest/boards/xtensa/esp32/doc/index.html?highlight=espressif_toolchain_path#set-up-build-environment and sets ESP_IDF_PATH when building, then everything works.

$ git rev-parse HEAD
e550302a61a088abe549e7bf4d3a2fd51d8971f3
$ echo $ZEPHYR_TOOLCHAIN_VARIANT
espressif
$ echo $ESPRESSIF_TOOLCHAIN_PATH 
~/.espressif/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/
$ rm -rf build; west build -b esp32 -- -DESP_IDF_PATH=~/.espressif
-- west build: generating a build system
Including boilerplate (Zephyr base): /projects/github/ncs/zephyr/cmake/app/boilerplate.cmake
-- Application: /projects/github/ncs/zephyr/samples/hello_world
-- Zephyr version: 2.3.0-rc1 (/projects/github/ncs/zephyr)
-- Found Python3: /usr/bin/python3.6 (found suitable exact version "3.6.9") found components: Interpreter 
-- Board: esp32
-- Found toolchain: zephyr (/opt/zephyr-sdk)
-- Found west: /home/tora/.local/bin/west (found suitable version "0.7.2", minimum required is "0.7.1")
-- Found dtc: /opt/zephyr-sdk/sysroots/x86_64-pokysdk-linux/usr/bin/dtc (found suitable version "1.5.0", minimum required is "1.4.6")
-- Found toolchain: espressif (/home/tora/.espressif/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf)
-- Found BOARD.dts: /projects/github/ncs/zephyr/boards/xtensa/esp32/esp32.dts
-- Generated zephyr.dts: /projects/github/ncs/zephyr/samples/hello_world/build/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: /projects/github/ncs/zephyr/samples/hello_world/build/zephyr/include/generated/devicetree_unfixed.h
Parsing /projects/github/ncs/zephyr/Kconfig
Loaded configuration '/projects/github/ncs/zephyr/boards/xtensa/esp32/esp32_defconfig'
Merged configuration '/projects/github/ncs/zephyr/samples/hello_world/prj.conf'
Configuration saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/.config'
Kconfig header saved to '/projects/github/ncs/zephyr/samples/hello_world/build/zephyr/include/generated/autoconf.h'
-- The C compiler identification is GNU 8.2.0
-- The CXX compiler identification is GNU 8.2.0
-- The ASM compiler identification is GNU
-- Found assembler: /home/tora/.espressif/tools/xtensa-esp32-elf/esp-2020r1-8.2.0/xtensa-esp32-elf/bin/xtensa-esp32-elf-gcc
-- Cache files will be written to: /home/tora/.cache/zephyr
-- Configuring done
-- Generating done
-- Build files have been written to: /projects/github/ncs/zephyr/samples/hello_world/build
-- west build: building application
[1/104] Preparing syscall dependency handling

[99/104] Linking C executable zephyr/zephyr_prebuilt.elf
Memory region         Used Size  Region Size  %age Used
     iram0_0_seg:       12408 B       128 KB      9.47%
     iram0_2_seg:          0 GB      3264 KB      0.00%
     dram0_0_seg:        9728 B       320 KB      2.97%
     drom0_0_seg:          0 GB         8 MB      0.00%
    rtc_iram_seg:          0 GB         8 KB      0.00%
    rtc_slow_seg:          0 GB         4 KB      0.00%
        IDT_LIST:          56 B         8 KB      0.68%
[104/104] Linking C executable zephyr/zephyr.elf
$

Closing, as this is working. I believe the docs could be improved, especially we should consider to add the espressif toolchain here: https://docs.zephyrproject.org/latest/getting_started/toolchain_3rd_party_x_compilers.html imho.

@lenhart please open a doc issue if you agree.

pabigot commented 4 years ago

Thanks, I've looked into it further, and I think this is still a bug.

25441 produces the failure in this PR when set up in this environment:

. ${HOME}/esp/esp-idf/export.sh
export ZEPHYR_TOOLCHAIN_VARIANT=espressif
export ESPRESSIF_TOOLCHAIN_PATH=${HOME}/.espressif/tools/xtensa-esp32-elf/esp32-2019r1-8.2.0/xtensa-esp32-elf/
export ESP_IDF_PATH=${IDF_PATH}
export ZEPHYR_SDK_INSTALL_DIR=/usr/local/zephyr-sdk
export ZEPHYR_BOARD_ALIASES=${HOME}/.zephyr_board_aliases.cmake
export SIGNING_KEY=${HOME}/pab-mcuboot.pem
cd /mnt/nordic/zp/zephyr
. zephyr-env.sh
export UNCRUSTIFY_CONFIG=${ZEPHYR_BASE}/.uncrustify.cfg

The reason seems to be that ZEPHYR_SDK_INSTALL_DIR take precedence over ZEPHYR_TOOLCHAIN_VARIANT, behavior that appears to have been introduced by the commit identified.

We used to be able to change ZEPHYR_TOOLCHAIN_VARIANT and have it take effect. I believe the proper fix is to only make use of ZEPHYR_SDK_INSTALL_DIR if ZEPHYR_TOOLCHAIN_VARIANT=zephyr.

tejlmand commented 4 years ago

@pabigot you're correct. It is a bug. Thanks for the details regarding this as a mix of Zephyr SDK Tools and 3rd party toolchain. Fixed here: #25446