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build: fixed unwanted libgcc when building using clang for linux target
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@ -224,11 +224,10 @@ endif()
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if(CMAKE_C_COMPILER_ID MATCHES "Clang")
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list(APPEND compile_options "-fno-use-cxa-atexit")
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if(CONFIG_COMPILER_RT_LIB_GCCLIB)
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list(APPEND link_options "-rtlib=libgcc")
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elseif(CONFIG_COMPILER_RT_LIB_CLANGRT)
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list(APPEND link_options "-rtlib=compiler-rt")
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endif()
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endif()
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if(COMPILER_RT_LIB_NAME)
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list(APPEND link_options "-rtlib=${CONFIG_COMPILER_RT_LIB_NAME}")
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endif()
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# For the transition period from 32-bit time_t to 64-bit time_t,
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9
Kconfig
9
Kconfig
@ -514,23 +514,30 @@ mainmenu "Espressif IoT Development Framework Configuration"
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choice COMPILER_RT_LIB
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prompt "Compiler runtime library"
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default COMPILER_RT_LIB_CLANGRT if IDF_TOOLCHAIN_CLANG
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default COMPILER_RT_LIB_HOST if IDF_TARGET_LINUX
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default COMPILER_RT_LIB_GCCLIB
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help
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Select runtime library to be used by compiler.
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- GCC toolchain supports libgcc only.
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- Clang allows to choose between libgcc or libclang_rt.
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- For host builds ("linux" target), uses the default library.
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config COMPILER_RT_LIB_GCCLIB
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depends on !IDF_TARGET_LINUX
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bool "libgcc"
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config COMPILER_RT_LIB_CLANGRT
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depends on IDF_TOOLCHAIN_CLANG
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depends on IDF_TOOLCHAIN_CLANG && !IDF_TARGET_LINUX
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bool "libclang_rt"
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config COMPILER_RT_LIB_HOST
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depends on IDF_TARGET_LINUX
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bool "Host"
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endchoice
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config COMPILER_RT_LIB_NAME
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string
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default "clang_rt.builtins" if COMPILER_RT_LIB_CLANGRT
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default "gcc" if COMPILER_RT_LIB_GCCLIB
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default "" if COMPILER_RT_LIB_HOST
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endmenu # Compiler Options
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