e6e29c0ccf
Without the -Wno-typedef-redefinition option, clang complains if a
typedef gets redefined in gnu99 mode (since this is officially a C11
feature).
While new versions of GCC do not seem to issue this warning in gnu99
mode anymore. So some existing code with typedef redefined which works
well with GCC will issue this warning.
Similar to what was done in 2354f055ec.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
104 lines
3.8 KiB
CMake
104 lines
3.8 KiB
CMake
# First step is to inherit all properties from gcc, as clang is compatible with most flags.
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include(${ZEPHYR_BASE}/cmake/compiler/gcc/compiler_flags.cmake)
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# Now, let's overwrite the flags that are different in clang.
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# No property flag, clang doesn't understand fortify at all
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set_compiler_property(PROPERTY security_fortify)
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# No property flag, this is used by the native_posix, clang has problems
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# compiling the native_posix with -fno-freestanding.
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check_set_compiler_property(PROPERTY hosted)
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# clang flags for coverage generation
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set_property(TARGET compiler PROPERTY coverage --coverage -fno-inline)
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#######################################################
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# This section covers flags related to warning levels #
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#######################################################
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# clang option standard warning base in Zephyr
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set_compiler_property(PROPERTY warning_base
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-Wall
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-Wformat
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-Wformat-security
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-Wno-format-zero-length
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-Wno-main
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-Wno-typedef-redefinition
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)
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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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# clang options for warning levels 1, 2, 3, when using `-DW=[1|2|3]`
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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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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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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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check_set_compiler_property(PROPERTY warning_extended
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#FIXME: need to fix all of those
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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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set_compiler_property(PROPERTY warning_error_coding_guideline
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-Werror=vla
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-Wimplicit-fallthrough
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-Wconversion
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-Woverride-init
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)
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