The current zephyr_get_compile_<type> flags returns compile / include
flags based on generator expressions.
But they also included a space.
This have the unintended side-effect that when the properties are
fetched into another variable and later appended to lists in order to
finally be used in a CMake target function / custom command, then CMake
in some cases will quote the string, creating a quoted argument like:
"arg0 arg1 arg2: instead of individual arguments like: "arg0" "arg1"
"arg2".
By using $<SEMICOLON>, then arguments are seperated correctly.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
This commit updates the get Zephyr settings functions to be able to
handle settings if those settings are expressed using a generator
expression.
As example, zephyr_get_include_directories_for_lang(...) would prefix
each include property of zephyr_interface with `-I`, like this:
Property: include;include/generated;lib/libc/minimal/include
becomes: `-Iinclude -Iinclude/generated -Ilib/libc/minimal/include`
But if the property contains a generator expression:
Property: include;$<TARGET_PROPERTY:compiler,some_include>
becomes: -Iinclude -I$<TARGET_PROPERTY:compiler,some_include>
and in case that property is a list, this results in:
`-Iinclude -Iinclude/list_item1;include/list_item2;include/list_itemN`
and thus breaking the build.
This is fixed by using `$<JOIN:<list>>` expression instead, which
ensures all list item, regardless of provided as simple list or through
the usage another generator expression, will always expand correctly.
Functions updated in the commit:
- zephyr_get_include_directories_for_lang
- zephyr_get_system_include_directories_for_lang
- zephyr_get_compile_definitions_for_lang
- zephyr_get_compile_options_for_lang
The sample `application_development/external_lib` has been updated
according to those changes.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
The undefined symbol option "-u" applies to linker so prefix
it with the linker prefix (usually "-Wl"). This fixes warnings
from LLVM/Clang about unknown arguments.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Move _LINKER and _ASMLANGUAGE to target.cmake because of how we pick the
linker script that might be used. This way regardless of how or where a
linker.ld gets included we will always set _LINKER & _ASMLANGUAGE (so
any header that needs check based on those defines they can,
specifically generated_dts_board.h)
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Final step of linker abstraction:
* Abstract zephyr_lnk by including it in toolchain_ld_link_elf.
* Abstract relevant uses of target_link_libraries.
* Introduce toolchain_ld_force_undefined_symbols.
No functional change expected.
This is motivated by the wish to abstract Zephyr's usage of toolchains,
permitting non-intrusive porting to other (commercial) toolchains.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
No functional change expected.
This is motivated by the wish to abstract Zephyr's usage of toolchains,
permitting non-intrusive porting to other (commercial) toolchains.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
No functional change expected.
This is motivated by the wish to abstract Zephyr's usage of toolchains,
permitting non-intrusive porting to other (commercial) toolchains.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
While configure_linker_script() may be useful for other linkers, it
currently only aimed at GNU ld. To really be useful among different
linkers, we would need to abstract its usage of the C preprocessor.
We can do this later, if needed.
No functional change expected.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
No functional change expected.
This is motivated by the wish to abstract Zephyr's usage of toolchains,
permitting non-intrusive porting to other (commercial) toolchains.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
The intent of toolchain_ld_baremetal() is to collect the flags belonging
to non-hosted (i.e. POSIX-based) targets.
No functional change expected.
This is motivated by the wish to abstract Zephyr's usage of toolchains,
permitting non-intrusive porting to other (commercial) toolchains.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
* LINKERFLAGPREFIX's value is GNU ld specific, and
* LINKERFLAGPREFIX is not a convention always honored by all linkers.
Thus we shall not set it from the common root CMakeList.txt.
So we move to linker/ld/target.cmake.
No functional change expected.
This is motivated by the wish to abstract Zephyr's usage of toolchains,
permitting non-intrusive porting to other (commercial) toolchains.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
toolchain_ld_base() represents flags that are fundamental to linking or
otherwise does not belong in any further specified linker flag category.
No functional change expected.
This is motivated by the wish to abstract Zephyr's usage of toolchains,
permitting non-intrusive porting to other (commercial) toolchains.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
toolchain_cc_nostdinc does not only obtain flags (to be placed in a
variable), it obtains and applies them.
No functional change expected.
Signed-off-by: Mark Ruvald Pedersen <mped@oticon.com>
