cortex-m0: newlib-nano: add CFLAGS for optimizing size

franzflasch · Aug 4, 2023 · b8859fb · b8859fb
1 parent d613b1d
commit b8859fb
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/configs/targets/cortex-m0.sh b/configs/targets/cortex-m0.sh
@@ -47,6 +47,17 @@ function config_cortex-m0() {
     )
 
     NEWLIB_NANO_CONFIGURATION=(
+        "CFLAGS_FOR_TARGET=\"-ffunction-sections \
+                             -fdata-sections \
+                             -Os \
+                             -fomit-frame-pointer \
+                             -fno-unroll-loops \
+                             -mabi=aapcs \
+                             -DPREFER_SIZE_OVER_SPEED \
+                             -D__OPTIMIZE_SIZE__ \
+                             -DSMALL_MEMORY \
+                             -D__BUFSIZ__=64 \
+                             -D_REENT_SMALL\""
         "${NEWLIB_NANO_BASE_CONFIGURATION[@]}"
         "--with-cpu=cortex-m0"
         "--with-mode=thumb"