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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/04/20 14:51:58 UTC

[GitHub] [incubator-nuttx] pkarashchenko commented on a diff in pull request #6105: arch/clang: add support for Clang LTO

pkarashchenko commented on code in PR #6105:
URL: https://github.com/apache/incubator-nuttx/pull/6105#discussion_r854234212


##########
arch/Kconfig:
##########
@@ -222,6 +222,49 @@ config ARCH_TOOLCHAIN_GNU
 	bool
 	default n
 
+config ARCH_TOOLCHAIN_CLANG
+	bool
+	select ARCH_TOOLCHAIN_GNU
+	default n
+
+choice
+	prompt "Link Time Optimization (LTO)"
+	default LTO_NONE
+	---help---
+	  This option enables Link Time Optimization (LTO), which allows the
+	  compiler to optimize binaries globally.
+
+	  If unsure, select LTO_NONE. Note that LTO is very resource-intensive
+	  so it's disabled by default.
+
+config LTO_NONE
+	bool "None"
+	help
+	  Build the kernel normally, without Link Time Optimization (LTO).

Review Comment:
   please use TABs only in Kconfig files



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