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zephyr/cmake/compiler/gcc/target_warnings.cmake

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CMake
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cmake: Toolchain abstraction: Introduce toolchain_cc_warning_dw_[1-3] The introduced macros are placeholders for the cmake parameter warning level. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-06 20:34:43 +08:00
# SPDX-License-Identifier: Apache-2.0
# See root CMakeLists.txt for description and expectations of these macros
cmake: Toolchain abstraction: Introduce toolchain_cc_warning_base This is placeholder for base warning flags, common to most toolchains. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-06 21:19:27 +08:00
macro(toolchain_cc_warning_base)
zephyr_compile_options(
-Wall
-Wformat
-Wformat-security
-Wno-format-zero-length
cmake: no-address-of-packed-member is not supported in older compilers Add a version check to allow building with older GCC versions that did not support this option. Fixes #16607 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-04 20:59:53 +08:00
-Wno-main
)
if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "9.1.0")
zephyr_compile_options(
compiler: no warnings on address-of-packed-member With gcc 9.1.x on fedora 30 we are getting new warnings that turn into errors when running sanitycheck. Disable those while the issues are being addressed. Relates to #16587 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-04 06:00:43 +08:00
# FIXME: Remove once #16587 is fixed
-Wno-address-of-packed-member
cmake: Toolchain abstraction: Introduce toolchain_cc_warning_base This is placeholder for base warning flags, common to most toolchains. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-06 21:19:27 +08:00
)
cmake: no-address-of-packed-member is not supported in older compilers Add a version check to allow building with older GCC versions that did not support this option. Fixes #16607 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2019-06-04 20:59:53 +08:00
endif()
cmake: Toolchain abstraction: Introduce toolchain_cc_warning_base This is placeholder for base warning flags, common to most toolchains. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-06 21:19:27 +08:00
zephyr_cc_option(-Wno-pointer-sign)
# Prohibit void pointer arithmetic. Illegal in C99
zephyr_cc_option(-Wpointer-arith)
endmacro()
cmake: Toolchain abstraction: Introduce toolchain_cc_warning_dw_[1-3] The introduced macros are placeholders for the cmake parameter warning level. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-06 20:34:43 +08:00
macro(toolchain_cc_warning_dw_1)
zephyr_compile_options(
-Wextra
-Wunused
-Wno-unused-parameter
-Wmissing-declarations
-Wmissing-format-attribute
)
zephyr_cc_option(
cmake: toolchain: generalize exclusion of CXX options -Wold-style-definition is not a supported option for C++ builds. To prevent it being passed: * the list of compiler flags to be excluded from C++ builds is moved to be toolchain-specific; * -Wold-style-definition is added to that list for gcc and clang; * -Wold-style-definition is moved from zephyr_compiler_options to zephyr_cc_option so the option checking code is executed for it. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2019-12-14 21:33:52 +08:00
-Wold-style-definition
cmake: Toolchain abstraction: Introduce toolchain_cc_warning_dw_[1-3] The introduced macros are placeholders for the cmake parameter warning level. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-06 20:34:43 +08:00
-Wmissing-prototypes
-Wmissing-include-dirs
-Wunused-but-set-variable
-Wno-missing-field-initializers
)
endmacro()
macro(toolchain_cc_warning_dw_2)
zephyr_compile_options(
-Waggregate-return
-Wcast-align
-Wdisabled-optimization
-Wnested-externs
-Wshadow
)
zephyr_cc_option(
-Wlogical-op
-Wmissing-field-initializers
)
endmacro()
macro(toolchain_cc_warning_dw_3)
zephyr_compile_options(
-Wbad-function-cast
-Wcast-qual
-Wconversion
-Wpacked
-Wpadded
-Wpointer-arith
-Wredundant-decls
-Wswitch-default
)
zephyr_cc_option(
-Wpacked-bitfield-compat
-Wvla
)
endmacro()
cmake: Toolchain abstraction: Introduce toolchain_cc_warning_extended This is placeholder for extended warning flags, likely to change between toolchains. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-06 21:21:58 +08:00
macro(toolchain_cc_warning_extended)
zephyr_cc_option(
-Wno-unused-but-set-variable
)
endmacro()
cmake: Toolchain abstraction: Introduce macros for MISRA SANE flags The macros are named toolchain_cc_warning_error_misra_sane and toolchain_cc_cpp_warning_error_misra_sane These macros provide toolchain specific flag(s) relating to the MISRA SANE configuration option. The macros will place the flag(s) in a variable provided by caller, which can then add to zephyr compile options. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-16 18:53:58 +08:00
cmake: Toolchain abstraction: Abstraction of implicit-int error flag Introducing the macro toolchain_cc_warning_error_implicit_int which, abstracts the implicit_int error flag thus leaving it to the toolchain to decide whether this flag is needed or not. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-16 18:58:40 +08:00
macro(toolchain_cc_warning_error_implicit_int)
# Force an error when things like SYS_INIT(foo, ...) occur with a missing header
zephyr_cc_option(-Werror=implicit-int)
endmacro()
cmake: Toolchain abstraction: Introduce macros for MISRA SANE flags The macros are named toolchain_cc_warning_error_misra_sane and toolchain_cc_cpp_warning_error_misra_sane These macros provide toolchain specific flag(s) relating to the MISRA SANE configuration option. The macros will place the flag(s) in a variable provided by caller, which can then add to zephyr compile options. The intent here is to abstract Zephyr's dependence on toolchains, thus allowing for easier porting to other, perhaps commercial, toolchains and/or usecases. No functional change expected. Signed-off-by: Danny Oerndrup <daor@demant.com>
2019-05-16 18:53:58 +08:00
#
# The following macros leaves it up to the root CMakeLists.txt to choose
# the variables in which to put the requested flags, and whether or not
# to call the macros
#
macro(toolchain_cc_warning_error_misra_sane dest_var_name)
set_ifndef(${dest_var_name} "-Werror=vla")
endmacro()
macro(toolchain_cc_cpp_warning_error_misra_sane dest_var_name)
set_ifndef(${dest_var_name} "-Werror=vla")
endmacro()
cmake: toolchain: generalize exclusion of CXX options -Wold-style-definition is not a supported option for C++ builds. To prevent it being passed: * the list of compiler flags to be excluded from C++ builds is moved to be toolchain-specific; * -Wold-style-definition is added to that list for gcc and clang; * -Wold-style-definition is moved from zephyr_compiler_options to zephyr_cc_option so the option checking code is executed for it. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
2019-12-14 21:33:52 +08:00
# List the warnings that are not supported for C++ compilations
list(APPEND CXX_EXCLUDED_OPTIONS
-Werror=implicit-int
-Wold-style-definition
)