libs/libbuiltin/Kconfig

#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#

comment "Toolchain Library Support"

config LIB_BUILTIN
	bool

config LIB_COMPILER_RT
	bool

choice
	prompt "Builtin toolchain support"
	default BUILTIN_TOOLCHAIN
	---help---
		Select the builtin library

config BUILTIN_COMPILER_RT
	bool "Builtin LLVM libclang_rt.builtins"
	depends on ARCH_TOOLCHAIN_GNU
	select LIB_BUILTIN
	select LIB_COMPILER_RT
	---help---
		Compile the LLVM Compiler-rt library into the OS.

config BUILTIN_TOOLCHAIN
	bool "Link toolchain builtin library to the OS"

endchoice

choice
	prompt "Code coverage analysis support"
	default COVERAGE_NONE
	---help---
		Select the code coverage analysis library

config COVERAGE_COMPILER_RT
	bool "Builtin libclang_rt.profile"
	depends on ARCH_TOOLCHAIN_CLANG
	select LIB_BUILTIN
	select LIB_COMPILER_RT
	---help---
		Compile the LLVM Compiler-rt library into the OS.
		Support adding native rich compilation options "-fprofile-xxx"

config COVERAGE_MINI
	bool "Builtin code coverage analysis mini library"
	select LIB_BUILTIN
	---help---
		This is a mini version of the library, which is
		used for code coverage analysis. If the toolchain
		is clang, only support the compilation option
		"-fprofile-instr-generate -fcoverage-mapping"

config COVERAGE_TOOLCHAIN
	bool "Link toolchain gcov library to the OS"
	depends on ARCH_TOOLCHAIN_GCC
	depends on HAVE_CXXINITIALIZE
	---help---
		Link the toolchain coverage library to the OS.

config COVERAGE_NONE
	bool "Disable coverage function"

endchoice

config COVERAGE_GCOV_DUMP_REBOOT
	bool "Dump gcov data on reboot"
	default n
	---help---
		Dump gcov data on reboot, this will cause the gcov data to be
		dumped to the default path when the system is rebooted.

config COVERAGE_DEFAULT_PREFIX_STRIP
	string "Default gcov dump path prefix strip"
	default "0"
	---help---
		The default prefix strip of the gcov data

config COVERAGE_DEFAULT_PREFIX
	string "Default gcov dump path prefix"
	default "/data"
	---help---
		The default prefix to store the gcov data

choice
	prompt "Builtin profile support"
	default PROFILE_NONE
	---help---
		Select the profile library

config PROFILE_MINI
	bool "Enable mini gprof profiling"
	select LIB_BUILTIN
	---help---
		Enable gprof profiling support.  This will cause the compiler to
		generate additional code to support profiling.  This will also
		cause the linker to include the gmon.out file in the final
		executable.
		Add the "-pg" parameter to the Makefile when compiling to obtain
		the function call graph of the specified module. If you do this,
		please enable "CONFIG_FRAME_POINTER"

config PROFILE_NONE
	bool "None profile support"

endchoice

config COVERAGE_ALL
	bool "Enable code coverage for all module"
	depends on !COVERAGE_NONE
	default n
	---help---
		Enable code coverage for all code, it will instrument
		all code, which will cause a large performance penalty for the code.
		If use GCC, it will add the '-fprofile-generate
		-ftest-coverage' parameter to all module.
		If use Clang, it will add the '-fprofile-instr-generate
		-fcoverage-mapping' parameter to all module.
		The data can then be printed nsh run "gcov dump -d /xxx/xxx"


config PROFILE_ALL
	bool "Enable gprof call graph for all modules"
	depends on FRAME_POINTER && !PROFILE_NONE
	default n
	---help---
		Enable gprof profiling for all code, it will instrument
		all code, which will cause a large performance penalty for the code.
		You can add the '-pg' parameter to the specified module in the
		makefile to only analyze the content of the module.

config LIB_COMPILER_RT_VERSION
	string "Select LLVM Compiler-rt version"
	depends on LIB_COMPILER_RT
	default "17.0.1"

config LIB_COMPILER_RT_HAS_BFLOAT16
	bool "Enable support for bfloat16 in Compiler-rt"
	depends on LIB_COMPILER_RT
	default n