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zephyr/cmake/compiler/armclang/compiler_flags.cmake

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armclang: support for armclang compiler and armlink linker This is the initial support for the armclang compiler together with the armlink linker. Introduced in this commit: - armclang compiler support - armlink linker support - armlink scatter file generator for scatter loading - dual pass linker script generation Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2020-11-30 15:59:18 +08:00
# First step is to inherit all properties from gcc, as clang is compatible with most flags.
include(${ZEPHYR_BASE}/cmake/compiler/clang/compiler_flags.cmake)
# Required ASM flags when using armclang, this should be handled by CMake, but
# fails because of: https://gitlab.kitware.com/cmake/cmake/-/issues/19963
set_property(TARGET asm APPEND PROPERTY required "--target=${triple}")
armclang: ARM Compiler C library support Support for ARM Compiler C library. This commit add support for the ARM Compiler C libary in: - Kconfig - libc/armstdc A new Kconfig symbol is added to allow a toolchain to specify if they support linking with the minimal C library. Also the CMake variable `TOOLCHAIN_HAS_NEWLIB` is exported to Kconfig so that CONFIG_NEWLIB_LIBS can only be enabled if the toolchain has newlib. The armclang toolchain selects the CMake scatter file generator and disables support for the LD linker template which is not supported by armlink. For the ARM Compiler C library, a corresponding lib/libc/armstc/ folder with a minimal implementation to work with the ARM Compiler C library is added. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
2021-08-16 05:14:21 +08:00
# Only the ARM Compiler C library is currently supported.
set_compiler_property(PROPERTY nostdinc)
cmake: enable -Wshadow partially for in-tree code This enables -Wshadow to warn about shadow variables on in tree code under arch/, boards/, drivers/, kernel/, lib/, soc/, and subsys/. Note that this does not enable it globally because out-of-tree modules will probably take some time to fix (or not at all depending on the project), and it would be great to avoid introduction of any new shadow variables in the meantime. Also note that this tries to be done in a minimally invasive way so it is easy to revert when we enable -Wshadow globally. Source files under modules/, samples/ and tests/ are currently excluded because there does not seem to be a trivial way to add -Wshadow there without going through all CMakeLists.txt to add the option (as there are 1000+ files to change). Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2023-08-12 04:40:05 +08:00
# Remove after testing that -Wshadow works
set_compiler_property(PROPERTY warning_shadow_variables)