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Commit e0b05e69 authored by Sami Tolvanen's avatar Sami Tolvanen
Browse files

ANDROID: kbuild: change LTO into a choice 



This fixes allmodconfig and prepares for gcc's LTO support.

Bug: 67506682
Change-Id: Ied90f9f25293321287b25fd6f214f7f1913f44cb
Signed-off-by: default avatarSami Tolvanen <samitolvanen@google.com>
parent da3bc265

arch/Kconfig

+12 −1
Original line number Diff line number Diff line
@@ -490,7 +490,7 @@ config LD_DEAD_CODE_DATA_ELIMINATION 
	  is used to distinguish them from label names / C identifiers.



config LTO

	bool

	def_bool n



config ARCH_SUPPORTS_LTO_CLANG

	bool
@@ -500,6 +500,15 @@ config ARCH_SUPPORTS_LTO_CLANG 
	  - compiling inline assembly with clang's integrated assembler,

	  - and linking with either lld or GNU gold w/ LLVMgold.



choice

	prompt "Link-Time Optimization (LTO) (EXPERIMENTAL)"

	default LTO_NONE

	help

	  This option turns on Link-Time Optimization (LTO).



config LTO_NONE

	bool "None"



config LTO_CLANG

	bool "Use clang Link Time Optimization (LTO) (EXPERIMENTAL)"

	depends on ARCH_SUPPORTS_LTO_CLANG
@@ -518,6 +527,8 @@ config LTO_CLANG 
          5.0 (make CC=clang) and GNU gold from binutils >= 2.27, and have the

          LLVMgold plug-in in LD_LIBRARY_PATH.



endchoice



config CFI

	bool