doc: overhaul getting_started
The getting started documentation has become a bit of a mess over
time:
- The reader needs to jump forward and backward in the documents
depending on what their system already has installed (e.g. "start by
cloning Zephyr, oh wait, see below if you don't have Git yet" etc.).
- The operating system setup guides, toolchain setup instructions, and
application build and run information have each become their own
balkanized fiefdom, with duplicated, confusing and sometimes
inconsistent results.
- Linux documentation for all distributions is incomplete in some
places (the Arch documentation in particular is vestigial)
and wrong in others (platforms like Ubuntu still nominally require
tools, like autoconf, that haven't been necessary since we stopped
using the C Kconfig tools)
- The dependencies needed to build the documentation have
gotten *huge* since the LaTeX additions and massively overstate the
footprint of Zephyr's real dependencies. This is particularly a
problem on Linux, where those dependencies were not clearly
separated from those needed to build Zephyr.
- The toolchain setup documentation is confusing and scattered across
the main file and the platform-specific files. There are various
bits of incomplete and/or incorrect information. For example, the
docs imply that you can use the Zephyr SDK on non-Linux hosts, which
isn't true. As another example, some toolchains, such as GNU Arm
Embedded, are documented several times. As a final example, some
toolchains, such as Intel's ISSM, are squirrelled away in the
Windows document when there are Linux builds available.
Overhaul the pages to fix these issues and otherwise clean up the
language. One significant side-effect is that all the
toolchain-related information is rooted in a single toctree. Another
is that it should now be possible to follow the instructions, in
order, on any supported platform.
Signed-off-by: Marti Bolivar <marti@foundries.io>
2018-10-15 07:20:24 +02:00
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.. _custom_cmake_toolchains:
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Custom CMake Toolchains
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#######################
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2019-05-07 07:36:30 +02:00
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To use a custom toolchain defined in an external CMake file, :ref:`set these
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environment variables <env_vars>`:
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doc: overhaul getting_started
The getting started documentation has become a bit of a mess over
time:
- The reader needs to jump forward and backward in the documents
depending on what their system already has installed (e.g. "start by
cloning Zephyr, oh wait, see below if you don't have Git yet" etc.).
- The operating system setup guides, toolchain setup instructions, and
application build and run information have each become their own
balkanized fiefdom, with duplicated, confusing and sometimes
inconsistent results.
- Linux documentation for all distributions is incomplete in some
places (the Arch documentation in particular is vestigial)
and wrong in others (platforms like Ubuntu still nominally require
tools, like autoconf, that haven't been necessary since we stopped
using the C Kconfig tools)
- The dependencies needed to build the documentation have
gotten *huge* since the LaTeX additions and massively overstate the
footprint of Zephyr's real dependencies. This is particularly a
problem on Linux, where those dependencies were not clearly
separated from those needed to build Zephyr.
- The toolchain setup documentation is confusing and scattered across
the main file and the platform-specific files. There are various
bits of incomplete and/or incorrect information. For example, the
docs imply that you can use the Zephyr SDK on non-Linux hosts, which
isn't true. As another example, some toolchains, such as GNU Arm
Embedded, are documented several times. As a final example, some
toolchains, such as Intel's ISSM, are squirrelled away in the
Windows document when there are Linux builds available.
Overhaul the pages to fix these issues and otherwise clean up the
language. One significant side-effect is that all the
toolchain-related information is rooted in a single toctree. Another
is that it should now be possible to follow the instructions, in
order, on any supported platform.
Signed-off-by: Marti Bolivar <marti@foundries.io>
2018-10-15 07:20:24 +02:00
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2019-05-07 07:36:30 +02:00
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- Set :envvar:`ZEPHYR_TOOLCHAIN_VARIANT` to your toolchain's name
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- Set :envvar:`TOOLCHAIN_ROOT` to the path to the directory containing your
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toolchain's CMake configuration files.
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Zephyr will then include the toolchain cmake files located in the
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:file:`TOOLCHAIN_ROOT` directory:
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doc: overhaul getting_started
The getting started documentation has become a bit of a mess over
time:
- The reader needs to jump forward and backward in the documents
depending on what their system already has installed (e.g. "start by
cloning Zephyr, oh wait, see below if you don't have Git yet" etc.).
- The operating system setup guides, toolchain setup instructions, and
application build and run information have each become their own
balkanized fiefdom, with duplicated, confusing and sometimes
inconsistent results.
- Linux documentation for all distributions is incomplete in some
places (the Arch documentation in particular is vestigial)
and wrong in others (platforms like Ubuntu still nominally require
tools, like autoconf, that haven't been necessary since we stopped
using the C Kconfig tools)
- The dependencies needed to build the documentation have
gotten *huge* since the LaTeX additions and massively overstate the
footprint of Zephyr's real dependencies. This is particularly a
problem on Linux, where those dependencies were not clearly
separated from those needed to build Zephyr.
- The toolchain setup documentation is confusing and scattered across
the main file and the platform-specific files. There are various
bits of incomplete and/or incorrect information. For example, the
docs imply that you can use the Zephyr SDK on non-Linux hosts, which
isn't true. As another example, some toolchains, such as GNU Arm
Embedded, are documented several times. As a final example, some
toolchains, such as Intel's ISSM, are squirrelled away in the
Windows document when there are Linux builds available.
Overhaul the pages to fix these issues and otherwise clean up the
language. One significant side-effect is that all the
toolchain-related information is rooted in a single toctree. Another
is that it should now be possible to follow the instructions, in
order, on any supported platform.
Signed-off-by: Marti Bolivar <marti@foundries.io>
2018-10-15 07:20:24 +02:00
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2019-05-07 07:36:30 +02:00
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- :file:`cmake/toolchain/generic.cmake`: configures the toolchain for "generic"
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2020-03-11 02:16:25 +01:00
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use, which mostly means running the C preprocessor on :ref:`devicetree
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input files <dt-input-files>`.
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2019-06-07 00:33:07 +02:00
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- :file:`cmake/toolchain/target.cmake`: configures the toolchain for "target"
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use, i.e. building Zephyr and your application's source code.
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doc: overhaul getting_started
The getting started documentation has become a bit of a mess over
time:
- The reader needs to jump forward and backward in the documents
depending on what their system already has installed (e.g. "start by
cloning Zephyr, oh wait, see below if you don't have Git yet" etc.).
- The operating system setup guides, toolchain setup instructions, and
application build and run information have each become their own
balkanized fiefdom, with duplicated, confusing and sometimes
inconsistent results.
- Linux documentation for all distributions is incomplete in some
places (the Arch documentation in particular is vestigial)
and wrong in others (platforms like Ubuntu still nominally require
tools, like autoconf, that haven't been necessary since we stopped
using the C Kconfig tools)
- The dependencies needed to build the documentation have
gotten *huge* since the LaTeX additions and massively overstate the
footprint of Zephyr's real dependencies. This is particularly a
problem on Linux, where those dependencies were not clearly
separated from those needed to build Zephyr.
- The toolchain setup documentation is confusing and scattered across
the main file and the platform-specific files. There are various
bits of incomplete and/or incorrect information. For example, the
docs imply that you can use the Zephyr SDK on non-Linux hosts, which
isn't true. As another example, some toolchains, such as GNU Arm
Embedded, are documented several times. As a final example, some
toolchains, such as Intel's ISSM, are squirrelled away in the
Windows document when there are Linux builds available.
Overhaul the pages to fix these issues and otherwise clean up the
language. One significant side-effect is that all the
toolchain-related information is rooted in a single toctree. Another
is that it should now be possible to follow the instructions, in
order, on any supported platform.
Signed-off-by: Marti Bolivar <marti@foundries.io>
2018-10-15 07:20:24 +02:00
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2019-05-07 07:36:30 +02:00
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See the zephyr files :zephyr_file:`cmake/generic_toolchain.cmake` and
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:zephyr_file:`cmake/target_toolchain.cmake` for more details on what your
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:file:`generic.cmake` and :file:`target.cmake` files should contain.
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doc: overhaul getting_started
The getting started documentation has become a bit of a mess over
time:
- The reader needs to jump forward and backward in the documents
depending on what their system already has installed (e.g. "start by
cloning Zephyr, oh wait, see below if you don't have Git yet" etc.).
- The operating system setup guides, toolchain setup instructions, and
application build and run information have each become their own
balkanized fiefdom, with duplicated, confusing and sometimes
inconsistent results.
- Linux documentation for all distributions is incomplete in some
places (the Arch documentation in particular is vestigial)
and wrong in others (platforms like Ubuntu still nominally require
tools, like autoconf, that haven't been necessary since we stopped
using the C Kconfig tools)
- The dependencies needed to build the documentation have
gotten *huge* since the LaTeX additions and massively overstate the
footprint of Zephyr's real dependencies. This is particularly a
problem on Linux, where those dependencies were not clearly
separated from those needed to build Zephyr.
- The toolchain setup documentation is confusing and scattered across
the main file and the platform-specific files. There are various
bits of incomplete and/or incorrect information. For example, the
docs imply that you can use the Zephyr SDK on non-Linux hosts, which
isn't true. As another example, some toolchains, such as GNU Arm
Embedded, are documented several times. As a final example, some
toolchains, such as Intel's ISSM, are squirrelled away in the
Windows document when there are Linux builds available.
Overhaul the pages to fix these issues and otherwise clean up the
language. One significant side-effect is that all the
toolchain-related information is rooted in a single toctree. Another
is that it should now be possible to follow the instructions, in
order, on any supported platform.
Signed-off-by: Marti Bolivar <marti@foundries.io>
2018-10-15 07:20:24 +02:00
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2019-05-07 07:36:30 +02:00
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You can also set ``ZEPHYR_TOOLCHAIN_VARIANT`` and ``TOOLCHAIN_ROOT`` as CMake
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variables when generating a build system for a Zephyr application, like so:
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doc: overhaul getting_started
The getting started documentation has become a bit of a mess over
time:
- The reader needs to jump forward and backward in the documents
depending on what their system already has installed (e.g. "start by
cloning Zephyr, oh wait, see below if you don't have Git yet" etc.).
- The operating system setup guides, toolchain setup instructions, and
application build and run information have each become their own
balkanized fiefdom, with duplicated, confusing and sometimes
inconsistent results.
- Linux documentation for all distributions is incomplete in some
places (the Arch documentation in particular is vestigial)
and wrong in others (platforms like Ubuntu still nominally require
tools, like autoconf, that haven't been necessary since we stopped
using the C Kconfig tools)
- The dependencies needed to build the documentation have
gotten *huge* since the LaTeX additions and massively overstate the
footprint of Zephyr's real dependencies. This is particularly a
problem on Linux, where those dependencies were not clearly
separated from those needed to build Zephyr.
- The toolchain setup documentation is confusing and scattered across
the main file and the platform-specific files. There are various
bits of incomplete and/or incorrect information. For example, the
docs imply that you can use the Zephyr SDK on non-Linux hosts, which
isn't true. As another example, some toolchains, such as GNU Arm
Embedded, are documented several times. As a final example, some
toolchains, such as Intel's ISSM, are squirrelled away in the
Windows document when there are Linux builds available.
Overhaul the pages to fix these issues and otherwise clean up the
language. One significant side-effect is that all the
toolchain-related information is rooted in a single toctree. Another
is that it should now be possible to follow the instructions, in
order, on any supported platform.
Signed-off-by: Marti Bolivar <marti@foundries.io>
2018-10-15 07:20:24 +02:00
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2019-06-13 21:59:12 +02:00
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.. code-block:: console
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west build ... -- -DZEPHYR_TOOLCHAIN_VARIANT=... -DTOOLCHAIN_ROOT=...
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doc: overhaul getting_started
The getting started documentation has become a bit of a mess over
time:
- The reader needs to jump forward and backward in the documents
depending on what their system already has installed (e.g. "start by
cloning Zephyr, oh wait, see below if you don't have Git yet" etc.).
- The operating system setup guides, toolchain setup instructions, and
application build and run information have each become their own
balkanized fiefdom, with duplicated, confusing and sometimes
inconsistent results.
- Linux documentation for all distributions is incomplete in some
places (the Arch documentation in particular is vestigial)
and wrong in others (platforms like Ubuntu still nominally require
tools, like autoconf, that haven't been necessary since we stopped
using the C Kconfig tools)
- The dependencies needed to build the documentation have
gotten *huge* since the LaTeX additions and massively overstate the
footprint of Zephyr's real dependencies. This is particularly a
problem on Linux, where those dependencies were not clearly
separated from those needed to build Zephyr.
- The toolchain setup documentation is confusing and scattered across
the main file and the platform-specific files. There are various
bits of incomplete and/or incorrect information. For example, the
docs imply that you can use the Zephyr SDK on non-Linux hosts, which
isn't true. As another example, some toolchains, such as GNU Arm
Embedded, are documented several times. As a final example, some
toolchains, such as Intel's ISSM, are squirrelled away in the
Windows document when there are Linux builds available.
Overhaul the pages to fix these issues and otherwise clean up the
language. One significant side-effect is that all the
toolchain-related information is rooted in a single toctree. Another
is that it should now be possible to follow the instructions, in
order, on any supported platform.
Signed-off-by: Marti Bolivar <marti@foundries.io>
2018-10-15 07:20:24 +02:00
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.. code-block:: console
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cmake -DZEPHYR_TOOLCHAIN_VARIANT=... -DTOOLCHAIN_ROOT=...
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2019-06-07 00:33:07 +02:00
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If you do this, ``-C <initial-cache>`` `cmake option`_ may useful. If you save
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your :makevar:`ZEPHYR_TOOLCHAIN_VARIANT`, :makevar:`TOOLCHAIN_ROOT`, and other
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settings in a file named :file:`my-toolchain.cmake`, you can then invoke cmake
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as ``cmake -C my-toolchain.cmake ...`` to save typing.
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.. _cmake option:
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https://cmake.org/cmake/help/latest/manual/cmake.1.html#options
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