zephyr/cmake/compiler/host-gcc/generic.cmake

# SPDX-License-Identifier: Apache-2.0

# Configures CMake for using GCC

find_program(CMAKE_C_COMPILER gcc REQUIRED)
find_program(CMAKE_GCOV gcov)
license: cleanup: add SPDX Apache-2.0 license identifier Update the files which contain no license information with the 'Apache-2.0' SPDX license identifier. Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of Zephyr, which is Apache version 2. Signed-off-by: Anas Nashif <anas.nashif@intel.com> 2019-04-06 15:08:09 +02:00			`# SPDX-License-Identifier: Apache-2.0`

cmake: Split toolchain configuration into pre-and post-DT Split up the toolchain configuration into two phases, generic and target. The 'generic' phase configures the toolchain just enough to be able to preprocess DT files. The 'target' phase completes the configuration with target-specific configuration. Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no> 2018-12-13 16:32:07 +01:00			`# Configures CMake for using GCC`

cmake: provide a useful error msg when native compiler is missing This avoids a cryptic DTC failure when compiling trying to compile native_posix with a missing gcc or clang. REQUIRED is available since CMake 3.18 Example with clang, cryptic error without this commit: ``` ZEPHYR_TOOLCHAIN_VARIANT=llvm west build \ -p -b native_posix samples/hello_world/ -- Found toolchain: host (clang/ld) <= this is wrong -- Found Dtc: /usr/bin/dtc (found suitable version "1.6.1", minimum ... -- Found BOARD.dts: zephyr/boards/posix/native_posix/native_posix.dts CMake Error at /zephyr/cmake/modules/dts.cmake:191 (message): command failed with return code: No such file or directory Call Stack (most recent call first): zephyr/cmake/modules/zephyr_default.cmake:113 (include) zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:66 (include) zephyr/share/zephyr-package/cmake/ZephyrConfig.cmake:92 (include_boil... CMakeLists.txt:5 (find_package) ``` Well hidden behind the scenes, dts.cmake fails above because it invokes `CMAKE_C_COMPILER-NOTFOUND` With this commit: ``` ZEPHYR_TOOLCHAIN_VARIANT=llvm west build \ -p -b native_posix samples/hello_world/ -- Found toolchain: host (clang/ld) <= this is still wrong CMake Error at zephyr/cmake/compiler/clang/generic.cmake:7 (find_program): Could not find CMAKE_C_COMPILER using the following names: clang ``` Signed-off-by: Marc Herbert <marc.herbert@intel.com> 2023-02-08 06:17:37 +01:00			`find_program(CMAKE_C_COMPILER gcc REQUIRED)`
cmake: Populate var CMAKE_GCOV For each compiler, also set a CMAKE_GCOV var referencing the appropriate gcov tool. Tested with gcc and host-gcc on the ChromeOS codebase. Signed-off-by: Jeremy Bettis <jbettis@chromium.org> 2021-08-28 00:57:15 +02:00			`find_program(CMAKE_GCOV gcov)`