[libc][stdlib] Only use freelist_malloc for baremetal targets. (llvm#96355)

Author: lntue

libc/src/stdlib/CMakeLists.txt

@@ -380,18 +380,24 @@ elseif(LIBC_TARGET_OS_IS_GPU)
     aligned_alloc
   )
 else()
-  # Only add malloc in full build mode.  Use the system malloc in overlay mode.
-  if(LLVM_LIBC_FULL_BUILD)
+  # Only use freelist malloc for baremetal targets.
+  add_entrypoint_object(
+    freelist_malloc
+    SRCS
+      freelist_malloc.cpp
+    HDRS
+      malloc.h
+    DEPENDS
+      libc.src.__support.freelist_heap
+    COMPILE_OPTIONS
+      -DLIBC_FREELIST_MALLOC_SIZE=${LIBC_CONF_FREELIST_MALLOC_BUFFER_SIZE}
+  )
+  if(LIBC_TARGET_OS_IS_BAREMETAL)
     add_entrypoint_object(
       malloc
-      SRCS
-        freelist_malloc.cpp
-      HDRS
-        malloc.h
+      ALIAS
       DEPENDS
-        libc.src.__support.freelist_heap
-      COMPILE_OPTIONS
-        -DLIBC_FREELIST_MALLOC_SIZE=${LIBC_CONF_FREELIST_MALLOC_BUFFER_SIZE}
+        .freelist_malloc
     )
   else()
     add_entrypoint_external(

libc/test/src/__support/CMakeLists.txt

@@ -36,7 +36,7 @@ if(LLVM_LIBC_FULL_BUILD)
     DEPENDS
       libc.src.__support.CPP.span
       libc.src.__support.freelist_heap
-      libc.src.stdlib.malloc
+      libc.src.stdlib.freelist_malloc
       libc.src.string.memcmp
       libc.src.string.memcpy
   )