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>
