Commit graph

1797 commits

Author SHA1 Message Date
Naveen Saini
0b1dd29799 gcc/target.cmake: fix build with gcc-13
Configuration error:
| -- Configuring done (4.9s)
| CMake Error in CMakeLists.txt:
|   Target "zephyr_interface" contains relative path in its
|   INTERFACE_INCLUDE_DIRECTORIES:
|
|     "include-fixed"

With GCC-13, limits.h and syslimits.h header files
are always being installed to include folder.
https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=be9dd80f933480

Signed-off-by: Naveen Saini <naveen.kumar.saini@intel.com>
2023-06-13 08:28:57 -04:00
Madhurima Paruchuri
a19d905cc4 USB-C: genVIF: Cleanup and add support to pick static data from input
Removed few VIF properties which are being hardcoded
Updated the script to parse source VIF XML and add information to
the output
Added optional Kconfig option to configure custom source VIF XML path
Cleaned up the code

Signed-off-by: Madhurima Paruchuri <mparuchuri@google.com>
2023-05-26 13:54:43 -04:00
Yuval Peress
ed380de152 sensors: Add new async one-shot reading API
Add a new async API based on the RTIO subsystem. This new API allows:
1. Users to create sampling configs (telling the sensor which channels
   they want to sample together).
2. Sample data in an asynchronous manner which provides greater control
   over the data processing priority.
3. Fully backwards compatible API with no driver changes needed for
   functionality (they are needed to improve performance).
4. Helper functions for processing loop.

Signed-off-by: Yuval Peress <peress@google.com>
2023-05-26 11:04:54 -05:00
Michał Szprejda
bdf02ff5d6 Twister: Add integration with renode-test
Add support for calling the `renode-test` command from west and twister.
Enable running Robot Framework tests suites in Renode.

Signed-off-by: Michał Szprejda <mszprejda@antmicro.com>
Signed-off-by: Mateusz Hołenko <mholenko@antmicro.com>
2023-05-26 09:43:49 -04:00
Jamie McCrae
7e47ac881b cmake: mcuboot: Add warning if missing Kconfig signing options
Adds a warning if neither Kconfig is enabled to generate an
unsigned image or a signing key are set, this is not an error but
warns the user in case they have forgot to set these modes or if
they have been set manually and have been cleared by a cmake
rebuild occurring (e.g. when bisecting).

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
2023-05-26 09:07:49 -04:00
Torsten Rasmussen
ba48dd8763 cmake: support snippets scope for zephyr_get()
Fixes: #57139

Snippets provides the possibility of defining EXTRA_DTC_OVERLAY_FILE and
EXTRA_CONF_FILE in snippets.
Snippets must co-exist with existing infrastructure of
EXTRA_DTC_OVERLAY_FILE and EXTRA_CONF_FILE, and a user specifying a
snippet must be able to specify extra files for adjusting the snippet.

This means that if the following is specified:
`-DSNIPPET=some_snippet -DEXTRA_CONF_FILE=extra.conf`
then `extra.conf` may contain adjustments to the snippet.
Similar to sysbuild. Imagine a sysbuild controlled image uses a default
snippet for building, by ensuring that any extra
`-D<image>_EXTRA_CONF_FILE=extra.conf` arguments takes precedence over
the snippet we allow users to make adjustments if they need.

This commit introduces a snippets scope where snippet scoped variables
can be set with `zephyr_set()` and then `zephyr_get()` will take the
snippet scoped variables into consideration before returning.

Adjust calls to `zephyr_get(EXTRA_DTC_OVERLAY_FILE)` and
`zephyr_get(EXTRA_CONF_FILE)` to use `MERGE` to ensure all scopes are
considered.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-25 13:31:53 +00:00
Torsten Rasmussen
a6d9105d51 cmake: create Zephyr scope functions for variables
zephyr_get() supports multiple scopes when returning variables.
Variables are returned based on the scope's priority.

To facilitate creation of more scopes in Zephyr for variable handling
additional functions are introduced.
- zephyr_create_scope(<scope>)
    creates a new scope
- zephyr_set(<var> <val>... SCOPE <scope>)
    set the value of a variable in the specified scope.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-25 13:31:53 +00:00
Torsten Rasmussen
fd526cc4b2 cmake: add reverse option to zephyr_get(... MERGE)
Adding the possibility to have the list returned in reversed order when
using `zephyr_get(... MERGE).

`zephyr_get(... MERGE)` creates a list which populates the content based
on variable settings in the following scopes, in this order:
sysbuild, cache, environment, local.

This works well for lists where content first in list has highest
precedence, such as ROOTs settings.
However, for settings where the value last in the list will overwrite
values earlier in the list, we want the list to be reversed, examples
of such can be CONF_FILE, OVERLAY_CONFIG, DTC_OVERLAY_FILE, where the
content of the file last in the list will overrule the content from an
earlier file.
So to ensure that a DTC_OVERLAY_FILE defined as cache takes precedence
over an env or local scope variable the possibility of reversing the
list must be available.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-25 13:31:53 +00:00
Torsten Rasmussen
5c71e68607 kconfig: provide an option for enforcing Kconfig settings
This commit introduces an internal FORCE_CONF_FILE CMake setting which
allows higher order build systems to generate a configuration file
which will always take precedence.

This means that in case a user tries to change any setting to be
different than the defined value in the FORCE_CONF_FILE provide file(s),
then a warning will be printed and the setting will be reset to the
value given in the FORCE_CONF_FILE file.

Example of such warning:
   <path>/.config.sysbuild:1: warning: BOOTLOADER_MCUBOOT
   (defined at Kconfig.zephyr:766) set more than once.
   Old value "n", new value "y".

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-25 14:57:41 +02:00
Torsten Rasmussen
a88502783b cmake: align Zephyr module variable to EXTRA_ZEPHYR_MODULES
Align Zephyr modules with other user facing variables where settings
can be defined or extended, meaning Zephyr modules now supports:
ZEPHYR_MODULES and EXTRA_ZEPHYR_MODULES.

Support for ZEPHYR_EXTRA_MODULES is kept foir backward compatibility.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-23 16:40:21 +02:00
Torsten Rasmussen
ca76349d24 cmake: update package helper description to use EXTRA_CONF_FILE var
Update package_helper.cmake to use EXTRA_CONF_FILE instead of deprecated
OVERLAY_CONFIG variable.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-23 16:40:21 +02:00
Torsten Rasmussen
384fb1e478 cmake: introduce EXTRA_DTC_OVERLAY_FILE for devicetree
This commit introduces EXTRA_DTC_OVERLAY_FILE.

This allows users to specify additional devicetree overlays in addition
to a sample / board specific default devicetree overlay files.

It also allows snippets to provide extra devicetree overlays on addition
to sample / board specific overlays.

The name EXTRA_DTC_OVERLAY_FILE clearly indicates the purpose and
follows the naming scheme of EXTRA_ in front of variable name.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-23 16:40:21 +02:00
Torsten Rasmussen
3a345682ba cmake: introduce EXTRA_CONF_FILE and deprecate OVERLAY_CONFIG
This commit introduces EXTRA_CONF_FILE and deprecates OVERLAY_CONFIG.

It has often caused confusion that OVERLAY_CONFIG adds extra
configuration fragments to the value of CONF_FILE (default: prj.conf),
but the similar named variable DTC_OVERLAY_FILE replaces the default
dtc overlay file used by the build system.

To remove such confusion, this commit introduces the EXTRA_ prefix in
front of CONF_FILE to clearly indicate it's purpose.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-23 16:40:21 +02:00
Torsten Rasmussen
8460d91e32 cmake: extend zephyr_get() to support fetching of multiple variables
This commit extends zephyr_get() to support multiple variable names to
be fetched into a single variable.

Example:
  zephyr_get(FOO VAR FOO_A FOO_B FOO_C)

will lookup each FOO_A, FOO_B, FOO_C for supported scopes and return
the value in FOO of the first scope encountered having one of the
variables defined.

If MERGE is specified, then all scopes for all vars are looped and the
variable values are merged into FOO and returned.

This functionality will allow to deprecate user-facing settings while
ensuring that both the new and deprecated variables are considered
in zephyr_get() and also taking into consideration the scope with
highest precedence.

This allows Zephyr CMake to do:
  zephyr_get(FOO VAR FOO DEPRECATED_FOO)

  zephyr_get(BAR MERGE VAR BAR DEPRECATED_BAR)

This allows support of old and new setting for a given number of
releases.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-23 16:40:21 +02:00
Marc Herbert
4975c94845 west.cmake: make MIN_WEST_VERSION catch up with requirements-base.txt
Also add a comment in each file reminding to keep them the same.

Fixes 251f269e23 ("west: v0.14.0 is required now (and soon, v1.1")

Confusing error message before this commit:

```
-- Found west (found suitable version 0.13.1, minimum required is 0.7.1)
CMake Error at SOF/zephyr/cmake/modules/zephyr_module.cmake:77 (message):
  Traceback (most recent call last):

    File "SOF/zephyr/scripts/zephyr_module.py", line 733, in <module>
      main()
    File "SOF/zephyr/scripts/zephyr_module.py", line 678, in main
      west_projs = west_projects()
                   ^^^^^^^^^^^^^^^
    File "SOF/zephyr/scripts/zephyr_module.py", line 536, in west_projects
      from west.configuration import MalformedConfig

  ImportError: cannot import name 'MalformedConfig'
                      from 'west.configuration'
  (west/src/west/configuration.py)
```

Clearer error message after this commit:

```
CMake Error at SOF/zephyr/cmake/modules/west.cmake:68 (message):
  The detected west version, 0.13.1, is unsupported.

    The minimum supported version is 0.14.0.
    Please upgrade with:
        /usr/bin/python3.11 -m pip install --upgrade west
```

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
2023-05-22 10:17:11 +02:00
Evgeniy Paltsev
15b46039b8 ARC: used 64bit MDB binary by default.
This significantly improve user experience as 32 bit mdb binary
require to install multiple libraries before it can be used on
modern linux distros.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
2023-05-22 10:16:28 +02:00
Jamie McCrae
0972cb9d87 cmake: kconfig: Configure KCONFIG_ROOT variable
This configures the KCONFIG_ROOT variable to perform variable
substitution, this allows external applications/modules to supply
variables for this when will then be correctly used.

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
2023-05-17 16:14:49 +02:00
Torsten Rasmussen
49389b546a west: sign: Add Kconfig with application version
Adds a Kconfig option which controls the version of the application
to use when the image is signed using imgtool.

When an application VERSION file is present, the default value will be
identical to the application version, else it will be 0.0.0+0, but a
project may still decide another value, if it so prefers.

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-17 13:56:58 +02:00
Torsten Rasmussen
2c757f9e7a cmake: generalize VERSION infrastructure for better reuse
Generalize the VERSION and version.h generation so that the same
infrastructure can be reused for generating other version related
header files, such as an application version header.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2023-05-17 13:56:58 +02:00
Jamie McCrae
a41f44b8db cmake: extensions: Fix missing quotes for zephyr_get function
Fixes a string comparison which is missing quotes, this works
on the first invocation but fails on the second if quotes are
not present.

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
2023-05-15 09:17:01 +02:00
Gerard Marull-Paretas
d0e58ad0a6 device: use iterable sections
Use iterable sections to handle devices list. This simplifies devices
implementation by using standard APIs.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2023-05-12 12:01:10 +02:00
Gerard Marull-Paretas
a7e8b3afcb cmake: extensions: add NUMERIC support to zephyr_iterable_section
Add a new flag to zephyr_iterable_section, NUMERIC, that configures
sorting to be numeric (up to 2 digits), that is, 2 comes before e.g. 10.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2023-05-12 12:01:10 +02:00
Evgeniy Paltsev
4e81b0e081 linker: restore CREATE_OBJ_LEVEL wildcard pattern
The 2c98a001a4 (#57597) cause
regression with ARC MWDT toolchain.

Restore CREATE_OBJ_LEVEL wildcard pattern to be suitable for
both GNU and MWDT toolchains. We return asterisk symbol which
was dropped in 2c98a001a4
(but keep rest of the changes to wildcard pattern).

Signed-off-by: Evgeniy Paltsev <PaltsevEvgeniy@gmail.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
2023-05-11 19:44:37 +02:00
Manoel Brunnen
3953de793f cmake: Fix USER_CACHE_DIR path generation
When the optional env_suffix_${env_var} was not set, USER_CACHE_DIR was
slightly malformed and had double slashes,
e.g. /home/user/.cache//zephyr.

To fix it string(JOIN ...) is used, which only sets slashes when
necessary.

Signed-off-by: Manoel Brunnen <mb@lee-brunnen.de>
2023-05-10 15:27:54 +02:00
Jamie McCrae
87f50bb72b cmake: extensions: Do not clear variable in zephyr_get MERGE mode
Fixes a regression whereby the variable would be cleared prior to
being used in MERGE mode.

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
2023-05-10 12:05:51 +02:00
Kumar Gala
ca4dc50ec1 libc: Move strnlen into common
Move the strnlen implementation into common so its available to any
libc that may not implement strnlen.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-05-08 09:59:27 +02:00
Gerard Marull-Paretas
99ebe39289 compiler: add CONFIG_COMPILER_TRACK_MACRO_EXPANSION
Add a new compiler option to control tracking locations of tokens across
macro expansions. It may be useful to disable it when debugging long
macro expansion chains.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2023-05-05 12:08:48 +02:00
Grzegorz Swiderski
af23628e43 sysbuild: Add SB_OVERLAY_CONFIG
This fixes a minor issue in sysbuild, where `-DOVERLAY_CONFIG=...` would
be applied not only to the main application, but also sysbuild itself.
This was incorrect, because sysbuild imports a different Kconfig tree
than normal Zephyr builds, so the same Kconfig fragment file would not
necessarily be valid for both.

This adds a new variable SB_OVERLAY_CONFIG to resolve this ambiguity.
It functions along the lines of SB_CONF_FILE, with both being sysbuild-
specific versions of existing variables.

To ensure that OVERLAY_CONFIG is still passed on to the main application
verbatim, its value is now loaded in `configuration_files.cmake`, rather
than `kconfig.cmake`. This is because the former file is not imported by
sysbuild, and it is where the related variables, such as CONF_FILE and
DTC_OVERLAY_FILE, are loaded as well.

Signed-off-by: Grzegorz Swiderski <grzegorz.swiderski@nordicsemi.no>
2023-05-05 09:42:10 +02:00
Jamie McCrae
cd9465ac94 sysbuild: Fix issue with *_ROOT values not propagating
Fixes an issue where variables like BOARD_ROOT would be provided
to sysbuild but would then be lost on target images.

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
2023-05-03 14:25:33 +02:00
Kumar Gala
b07be57875 logging: Use TYPE_SECTION macros for log dynamic
Clean up log_dynamic to utilize macros for handling sections.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-05-03 10:43:31 +02:00
Kumar Gala
bae0a5b8b6 logging: Use TYPE_SECTION macros for log const
Clean up log_const to utilize macros for handling sections.

Update database_gen.py to match naming convention change.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-05-03 10:43:31 +02:00
Kumar Gala
f5eada5553 cmake: linker: arm: put RAM sections in RAM region
Cleanup RAM layout so that the RAM_REGION is now in the RAM memory
region.  Put .bss in RAM_REGION.

This means we have a proper program header for the RAM region.

As part of this extend zephyr_linker_symbol to allow it to take
an OBJECT paramater to specify the region to associate a symbol to.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-05-03 17:07:47 +09:00
Nikolay Agishev
0d8292ab6b ARC: Add HS4x support
Minimal HSDK4xD support

Signed-off-by: Nikolay Agishev <agishev@synopsys.com>
2023-05-02 16:54:24 +02:00
Alberto Escolar Piedras
6758156c09 nrf52_bsim: Find simulator thru west as fallback
For developers ease, let's try to find the simulator
thru west if the environment variables that tell where
the simulator is are not set.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
2023-04-28 13:57:21 +02:00
Kumar Gala
f30235f56a cmake: armclang: Handle -mfpu=auto used by cortex-m55
arm-clang utilizes the gcc fpu flags, however -mfpu=auto is not a
supported option in arm-clang.  For arm-clang we can mimic the auto
behavior by just not setting the -mfpu option.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-27 14:16:52 +02:00
Keith Packard
28209a9069 cmake/toolchain: Add Kconfig setting for toolchains with newlib
Label espressif, gnuarmemd and xtools toolchains with newlib support using
the Kconfig variable rather than relying on the TOOLCHAIN_HAS_NEWLIB
value.

Signed-off-by: Keith Packard <keithp@keithp.com>
2023-04-27 20:18:11 +09:00
Keith Packard
02262d7367 lib/libc: Replace SUPPORT_MINIMAL_LIBC with MINIMAL_LIBC_SUPPORTED
Clean up libc-related symbols to use a common pattern.

Signed-off-by: Keith Packard <keithp@keithp.com>
2023-04-27 20:18:11 +09:00
Keith Packard
638842c598 cmake: Compute TOOLCHAIN_HAS_NEWLIB at cmake time
Switch from using a generator expression to computing the value with a
conditional so that it is available during the execution of kconfig instead
of only being available while generating the build script.

Signed-off-by: Keith Packard <keithp@keithp.com>
2023-04-27 20:18:11 +09:00
Kumar Gala
91919d3e2d armclang: Fix setting CMAKE_SYSTEM_PROCESSOR for mps2_an521
On mps2_an521 GCC_M_CPU gets set to cortex-m33+nodsp, however that is
not a valid setting for CMAKE_SYSTEM_PROCESSOR.  We need to strip the
extra options (+<OPTION>) from GCC_M_CPU so that we get just cortex-m33.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-26 12:55:34 +02:00
Kumar Gala
30653bfbed console: uart_mux: Use TYPE_SECTION macros for uart_mux
Clean up uart_mux to utilize TYPE_SECTION macros for handling sections.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-21 12:55:38 +02:00
Kumar Gala
caea9dc196 logging: Use TYPE_SECTION macros for log strings
Clean up log_strings to utilize macros for handling sections.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-20 10:52:07 +02:00
Kumar Gala
301d0c4712 net: buf: cleanup net_buf_pool use of iterable section
Cleanup linker scripts for net_buf_pool section to use the linker
script related iterable section macros.

Also replace _net_buf_pool_list with macro's instead to complete
iterable section usage.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-20 10:50:04 +02:00
Marc Herbert
acb7f71ae5 cmake: sparse: fix handling of (deprecated) -DSPARSE=garbage
Due to many layers of indirections (Github Actions, Docker scripts, SOF
build scripts, etc.), thesofproject/sof/pull/7452's first attempt to
turn off VLAs ended up setting `-DSPARSE=gar bage`:

  west build ...  -- '-DSPARSE=y -DCONFIG_LOG_USE_VLA=n'

Quoting issues are typical when trying to pass parameters through too
many layers of indirections. In this case, the mistake set the $SPARSE
variable to the 'y -DCONFIG_LOG_USE_VLA=n' garbage which printed this
confusing and time-consuming error message:

    Setting SPARSE=y -DCONFIG_LOG_USE_VLA=n is deprecated.

Worse: this enabled sparse (!) while silently ignoring the garbage
trailing after "y".

1. Enable sparse only when $SPARSE is equal to "y" and nothing
   else. This stops enabling sparse when `-DSPARSE=gar bage` which draws
   more attention to the warning and gives a little more incentive to
   leave the deprecated option behind. Don't make any difference between
   the "n" and "gar bage" values because $SPARSE is deprecated so not
   worth that much CMake code.

2. Add quotes in the deprecation message to make garbage values more
   obvious, now:

    Setting SPARSE='y -DCONFIG_LOG_USE_VLA=n' is deprecated.

Fixes: 60196ca112 ("cmake: sparse: deprecate old sparse support")

Signed-off-by: Marc Herbert <marc.herbert@intel.com>
2023-04-20 10:49:23 +02:00
Kumar Gala
eec299c130 pm: Use TYPE_SECTION macros for pm_device_slots
Clean up pm_device_slots to utilize TYPE_SECTION macros for handling
sections.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-19 17:15:29 +02:00
Kumar Gala
47cf00058e fb: cfb: Use TYPE_SECTION macros for cfb_fonts
Clean up cfb_fonts to utilize TYPE_SECTION macros for handling sections.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-19 17:14:54 +02:00
Kumar Gala
7469ad426a drivers: pcie: Use TYPE_SECTION macros for irq_alloc
Clean up irq_alloc to utilize TYPE_SECTION macros for handling sections.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-19 17:14:46 +02:00
Kumar Gala
5b5fbc4c11 shell: remove dead linker section for shell
The initshell sections in the linker scripts where associated with theo
old shell code.  The old shell code has been removed for some time so
remove references to initshell in the linker scripts and size_calc.py

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-19 17:14:37 +02:00
Kumar Gala
46a2df35be shell: remove duplicate linker section for shell_root_cmds
We have an entry for shell_root_cmds using zephyr_iterable_section so
remove duplicate handling of shell_root_cmds.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-19 03:46:54 -04:00
Kumar Gala
6b5139c4bb shell: Convert to using iterable sections
Convert handling of shell_root_cmds, shell_subcmds, and
shell_dynamic_subcmds to use iterable section macros.

Signed-off-by: Kumar Gala <kumar.gala@intel.com>
2023-04-18 12:48:16 +02:00
Keith Packard
87a30609da cmake: Add zephyr_libc_link_libraries function
This function allows subsystems to define libraries which get added to the
link command after all other libraries and modules. It's useful when using
a toolchain library, like libc or libgcc, as those can get added when
processing the 'lib' directory, before any module libraries and hence might
not get used to resolve symbols from modules.

Signed-off-by: Keith Packard <keithp@keithp.com>
2023-04-17 11:13:17 +02:00