From b22ee5213ea61d733d36ea71c6ae984fcd929ba3 Mon Sep 17 00:00:00 2001
From: leisiji <2265215145@qq.com>
Date: Fri, 5 Jun 2026 12:06:11 +0800
Subject: [PATCH] mm/kasan: Fix compile options applied to wrong target in
 SPLIT build

In SPLIT build mode, nuttx_add_kernel_library(mm SPLIT) creates two
targets: mm (system library) and kmm (kernel library). The compile
options were being applied to the mm target via
target_compile_options(mm ...), but the kasan instrumentation is
compiled as part of the kmm target.

Change target_compile_options(mm ...) to target_compile_options(kmm
...) so that FLAGS (including -fno-builtin and NO_LTO) are correctly
applied to the kernel target where kasan code is compiled.

Signed-off-by: leisiji <2265215145@qq.com>
---
 mm/kasan/CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mm/kasan/CMakeLists.txt b/mm/kasan/CMakeLists.txt
index d33e1805fed..d802a55b1a4 100644
--- a/mm/kasan/CMakeLists.txt
+++ b/mm/kasan/CMakeLists.txt
@@ -34,4 +34,9 @@ if(CONFIG_MM_KASAN)
 endif()
 
 target_sources(mm PRIVATE ${SRCS})
-target_compile_options(mm PRIVATE ${FLAGS})
+
+if(CONFIG_BUILD_FLAT)
+  target_compile_options(mm PRIVATE ${FLAGS})
+else()
+  target_compile_options(kmm PRIVATE ${FLAGS})
+endif()