[GitHub] [incubator-nuttx] xiaoxiang781216 commented on a diff in pull request #6121: compile/opt: add config DEBUG_LINK_MAP

[GitBox <gi...@apache.org>]

xiaoxiang781216 commented on code in PR #6121:
URL: https://github.com/apache/incubator-nuttx/pull/6121#discussion_r855252143


##########
Kconfig:
##########
@@ -1956,6 +1956,29 @@ config DEBUG_OPTLEVEL
 		This string represents the custom optimization level that will be
 		used if DEBUG_CUSTOMOPT.
 
+config DEBUG_OPT_UNUSED_SECTIONS
+	bool "Optimization to eliminate the unused input sections"
+	default y
+	depends on ARCH_TOOLCHAIN_GNU
+	---help---
+		Use these options on systems where the linker can perform optimizations
+		to improve locality of reference in the instruction space.  Most systems
+		using the ELF object format have linkers with such optimizations.
+
+		Enable this option to optimization the unused input sections with the
+		linker by compiling with " -ffunction-sections -fdata-sections ", and
+		linking with " --gc-sections ".
+
+config DEBUG_LINK_MAP
+	bool "Generate link map file"
+	default y
+	depends on ARCH_TOOLCHAIN_GNU

Review Comment:
   remove dependent since all tool chain support the map file



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