xiaoxiang781216 commented on code in PR #17444:
URL: https://github.com/apache/nuttx/pull/17444#discussion_r2597590542


##########
libs/libc/string/lib_memset.c:
##########
@@ -53,6 +53,7 @@
 #if !defined(CONFIG_LIBC_ARCH_MEMSET) && defined(LIBC_BUILD_MEMSET)
 #undef memset
 no_builtin("memset")
+used_code

Review Comment:
   The random LTO error may due to the mix of LTO and non-TLO .a, the 
predictable fix is built all used code from source file with the consistent 
compiler/linker option. LTO version of libgcc/libsupc++ is also important to 
get the full LTO benefit.



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