kopia lustrzana https://github.com/espressif/esp-idf
106 wiersze
4.2 KiB
ReStructuredText
106 wiersze
4.2 KiB
ReStructuredText
******************************************
|
|
Setup Linux Toolchain from Scratch
|
|
******************************************
|
|
|
|
:link_to_translation:`zh_CN:[中文]`
|
|
|
|
The following instructions are alternative to downloading binary toolchain from Espressif website. To quickly setup the binary toolchain, instead of compiling it yourself, backup and proceed to section :doc:`linux-setup`.
|
|
|
|
.. note:: The reason you might need to build your own toolchain is to solve the Y2K38 problem (time_t expand to 64 bits instead of 32 bits).
|
|
|
|
Install Prerequisites
|
|
=====================
|
|
|
|
To compile with ESP-IDF you need to get the following packages:
|
|
|
|
- CentOS 7::
|
|
|
|
sudo yum install git wget ncurses-devel flex bison gperf python pyserial python-pyelftools cmake ninja-build ccache dfu-util
|
|
|
|
- Ubuntu and Debian::
|
|
|
|
sudo apt-get install git wget libncurses-dev flex bison gperf python python-pip python-setuptools python-serial python-cryptography python-future python-pyparsing python-pyelftools cmake ninja-build ccache libffi-dev libssl-dev dfu-util
|
|
|
|
- Arch::
|
|
|
|
sudo pacman -S --needed gcc git make ncurses flex bison gperf python-pyserial python-cryptography python-future python-pyparsing python-pyelftools cmake ninja ccache dfu-util
|
|
|
|
.. note::
|
|
CMake version 3.5 or newer is required for use with ESP-IDF. Older Linux distributions may require updating, enabling of a "backports" repository, or installing of a "cmake3" package rather than "cmake".
|
|
|
|
Compile the Toolchain from Source
|
|
=================================
|
|
|
|
- Install dependencies:
|
|
|
|
- CentOS 7::
|
|
|
|
sudo yum install gawk gperf grep gettext ncurses-devel python python-devel automake bison flex texinfo help2man libtool make
|
|
|
|
- Ubuntu pre-16.04::
|
|
|
|
sudo apt-get install gawk gperf grep gettext libncurses-dev python python-dev automake bison flex texinfo help2man libtool make
|
|
|
|
- Ubuntu 16.04 or newer::
|
|
|
|
sudo apt-get install gawk gperf grep gettext python python-dev automake bison flex texinfo help2man libtool libtool-bin make
|
|
|
|
- Debian 9::
|
|
|
|
sudo apt-get install gawk gperf grep gettext libncurses-dev python python-dev automake bison flex texinfo help2man libtool libtool-bin make
|
|
|
|
- Arch::
|
|
|
|
TODO
|
|
|
|
Create the working directory and go into it::
|
|
|
|
mkdir -p ~/esp
|
|
cd ~/esp
|
|
|
|
Download ``crosstool-NG`` and build it:
|
|
|
|
.. include-build-file:: inc/scratch-build-code.inc
|
|
|
|
.. note:: To create a toolchain with support for 64-bit time_t, you need to remove the ``--enable-newlib-long-time_t`` option from the ``crosstool-NG/samples/xtensa-esp32-elf/crosstool.config`` file in 33 and 43 lines.
|
|
|
|
Build the toolchain::
|
|
|
|
./ct-ng xtensa-{IDF_TARGET_TOOLCHAIN_NAME}-elf
|
|
./ct-ng build
|
|
chmod -R u+w builds/xtensa-{IDF_TARGET_TOOLCHAIN_NAME}-elf
|
|
|
|
Toolchain will be built in ``~/esp/crosstool-NG/builds/xtensa-{IDF_TARGET_TOOLCHAIN_NAME}-elf``.
|
|
|
|
Add Toolchain to PATH
|
|
=====================
|
|
|
|
The custom toolchain needs to be copied to a binary directory and added to the ``PATH``.
|
|
|
|
Choose a directory, for example ``~/esp/xtensa-{IDF_TARGET_TOOLCHAIN_NAME}-elf/``, and copy the build output to this directory.
|
|
|
|
To use it, you will need to update your ``PATH`` environment variable in ``~/.profile`` file. To make ``xtensa-{IDF_TARGET_TOOLCHAIN_NAME}-elf`` available for all terminal sessions, add the following line to your ``~/.profile`` file::
|
|
|
|
export PATH="$HOME/esp/xtensa-{IDF_TARGET_TOOLCHAIN_NAME}-elf/bin:$PATH"
|
|
|
|
.. note::
|
|
|
|
If you have ``/bin/bash`` set as login shell, and both ``.bash_profile`` and ``.profile`` exist, then update ``.bash_profile`` instead. In CentOS, ``alias`` should set in ``.bashrc``.
|
|
|
|
Log off and log in back to make the ``.profile`` changes effective. Run the following command to verify if ``PATH`` is correctly set::
|
|
|
|
printenv PATH
|
|
|
|
You are looking for similar result containing toolchain's path at the beginning of displayed string::
|
|
|
|
$ printenv PATH
|
|
/home/user-name/esp/xtensa-{IDF_TARGET_TOOLCHAIN_NAME}-elf/bin:/home/user-name/bin:/home/user-name/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
|
|
|
|
Instead of ``/home/user-name`` there should be a home path specific to your installation.
|
|
|
|
|
|
Next Steps
|
|
==========
|
|
|
|
To carry on with development environment setup, proceed to :ref:`get-started-get-esp-idf`.
|