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212 lines
8.0 KiB
212 lines
8.0 KiB
# List the warnings that are not supported for C++ compilations |
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list(APPEND CXX_EXCLUDED_OPTIONS |
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-Werror=implicit-int |
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-Wold-style-definition |
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) |
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################################################### |
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# Setting compiler properties for MWDT compilers. # |
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################################################### |
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##################################################### |
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# This section covers flags related to optimization # |
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##################################################### |
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set_compiler_property(PROPERTY no_optimization -O0) |
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set_compiler_property(PROPERTY optimization_debug -O0) |
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set_compiler_property(PROPERTY optimization_speed -O2) |
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set_compiler_property(PROPERTY optimization_size -Os) |
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####################################################### |
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# This section covers flags related to warning levels # |
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####################################################### |
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# options for warnings |
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# base options |
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set_compiler_property(PROPERTY warning_base |
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-Wformat |
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-Wformat-security |
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-Wno-format-zero-length |
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-Wno-unaligned-pointer-conversion |
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-Wno-incompatible-pointer-types-discards-qualifiers |
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-Wno-typedef-redefinition |
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) |
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# C implicit promotion rules will want to make floats into doubles very easily |
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check_set_compiler_property(APPEND PROPERTY warning_base -Wdouble-promotion) |
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check_set_compiler_property(APPEND PROPERTY warning_base -Wno-pointer-sign) |
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# Prohibit void pointer arithmetic. Illegal in C99 |
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check_set_compiler_property(APPEND PROPERTY warning_base -Wpointer-arith) |
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# level 1 warning options |
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set_compiler_property(PROPERTY warning_dw_1 |
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-Wextra |
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-Wunused |
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-Wno-unused-parameter |
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-Wmissing-declarations |
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-Wmissing-format-attribute |
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) |
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check_set_compiler_property(APPEND PROPERTY warning_dw_1 |
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-Wold-style-definition |
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-Wmissing-prototypes |
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-Wmissing-include-dirs |
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-Wunused-but-set-variable |
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-Wno-missing-field-initializers |
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) |
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# level 2 warning options |
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set_compiler_property(PROPERTY warning_dw_2 |
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-Waggregate-return |
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-Wcast-align |
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-Wdisabled-optimization |
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-Wnested-externs |
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-Wshadow |
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) |
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check_set_compiler_property(APPEND PROPERTY warning_dw_2 |
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-Wlogical-op |
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-Wmissing-field-initializers |
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) |
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# level 3 warning options |
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set_compiler_property(PROPERTY warning_dw_3 |
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-Wbad-function-cast |
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-Wcast-qual |
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-Wconversion |
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-Wpacked |
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-Wpadded |
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-Wpointer-arith |
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-Wredundant-decls |
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-Wswitch-default |
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) |
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check_set_compiler_property(APPEND PROPERTY warning_dw_3 |
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-Wpacked-bitfield-compat |
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-Wvla |
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) |
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# extended warning options |
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check_set_compiler_property(PROPERTY warning_extended |
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-Wno-sometimes-uninitialized |
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-Wno-shift-overflow |
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-Wno-missing-braces |
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-Wno-self-assign |
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-Wno-address-of-packed-member |
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-Wno-unused-function |
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-Wno-initializer-overrides |
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-Wno-section |
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-Wno-unknown-warning-option |
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-Wno-unused-variable |
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-Wno-format-invalid-specifier |
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-Wno-gnu |
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# comparison of unsigned expression < 0 is always false |
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-Wno-tautological-compare |
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) |
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check_set_compiler_property(PROPERTY warning_error_implicit_int -Werror=implicit-int) |
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set_compiler_property(PROPERTY warning_error_misra_sane -Werror=vla) |
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########################################################################### |
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# This section covers flags related to C or C++ standards / standard libs # |
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########################################################################### |
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set_compiler_property(PROPERTY cstd -std=) |
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if (NOT CONFIG_ARCMWDT_LIBC) |
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set_compiler_property(PROPERTY nostdinc -Hno_default_include -Hnoarcexlib -U__STDC_LIB_EXT1__) |
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set_compiler_property(APPEND PROPERTY nostdinc_include ${NOSTDINC}) |
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endif() |
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# C++ std options |
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp98 "-std=c++98") |
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp11 "-std=c++11") |
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp14 "-std=c++14") |
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp17 "-std=c++17") |
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#no support of C++2a, C++20, C++2b |
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp2a "") |
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp20 "") |
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set_property(TARGET compiler-cpp PROPERTY dialect_cpp2b "") |
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# Flag for disabling strict aliasing rule in C and C++ |
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set_compiler_property(PROPERTY no_strict_aliasing -fno-strict-aliasing) |
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# Flags for set extra warnigs (ARCMWDT asm can't recognize --fatal-warnings. Skip it) |
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set_property(TARGET compiler PROPERTY warnings_as_errors -Werror) |
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set_property(TARGET asm PROPERTY warnings_as_errors -Werror) |
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# Disable exceptions flag in C++ |
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set_property(TARGET compiler-cpp PROPERTY no_exceptions "-fno-exceptions") |
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# Disable rtti in C++ |
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set_property(TARGET compiler-cpp PROPERTY no_rtti "-fno-rtti") |
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################################################### |
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# This section covers all remaining C / C++ flags # |
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################################################### |
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# mwdt flag for a freestanding application |
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# do not link in supplied run-time startup files |
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set_compiler_property(PROPERTY freestanding -Hnocrt) |
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# Flag to keep DWARF information (enable debug info) |
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set_compiler_property(PROPERTY debug -g) |
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# compile common globals like normal definitions |
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set_compiler_property(PROPERTY no_common -fno-common) |
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# mwdt's coverage mechanism is different with gnu |
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# at present, zephyr only support gnu coverage |
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set_compiler_property(PROPERTY coverage "") |
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# mwdt compiler flags for imacros. The specific header must be appended by user. |
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set_compiler_property(PROPERTY imacros -imacros) |
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# Security canaries. |
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#no support of -mstack-protector-guard=global" |
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set_compiler_property(PROPERTY security_canaries -fstack-protector) |
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set_compiler_property(PROPERTY security_canaries_strong -fstack-protector-strong) |
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set_compiler_property(PROPERTY security_canaries_all -fstack-protector-all) |
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#no support of _FORTIFY_SOURCE" |
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set_compiler_property(PROPERTY security_fortify_compile_time) |
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set_compiler_property(PROPERTY security_fortify_run_time) |
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# Required C++ flags when using mwdt |
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set_property(TARGET compiler-cpp PROPERTY required "-Hcplus" ) |
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if(CONFIG_ARC) |
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set_property(TARGET compiler-cpp PROPERTY required "-Hoff=Stackcheck_alloca") |
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endif() |
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# Compiler flag for turning off thread-safe initialization of local statics |
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set_property(TARGET compiler-cpp PROPERTY no_threadsafe_statics "-fno-threadsafe-statics") |
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# ARC MWDT does not support -fno-pic and -fno-pie flags, |
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# but it has PIE disabled by default - so no extra flags are required here. |
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set_compiler_property(PROPERTY no_position_independent "") |
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set_compiler_property(PROPERTY no_global_merge "") |
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################################# |
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# This section covers asm flags # |
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################################# |
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# Required ASM flags when using mwdt |
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set_property(TARGET asm PROPERTY required "-Hasmcpp") |
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if(CONFIG_ARCMWDT_LIBC) |
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# We rely on the default C/C++ include locations which are provided by MWDT if we do build with |
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# MW C / C++ libraries. However, for that case we still need to explicitly set header directory |
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# to ASM builds (which may use 'stdbool.h'). |
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set_property(TARGET asm APPEND PROPERTY required "-I${NOSTDINC}") |
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endif() |
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# Remove after testing that -Wshadow works |
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set_compiler_property(PROPERTY warning_shadow_variables) |
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set_compiler_property(PROPERTY no_builtin -fno-builtin) |
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set_compiler_property(PROPERTY no_builtin_malloc -fno-builtin-malloc)
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