diff options
Diffstat (limited to 'core/cortex-m0/build.mk')
| -rw-r--r-- | core/cortex-m0/build.mk | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/core/cortex-m0/build.mk b/core/cortex-m0/build.mk index 7de8956a4d..f3cce27eea 100644 --- a/core/cortex-m0/build.mk +++ b/core/cortex-m0/build.mk @@ -6,6 +6,14 @@ # Cortex-M0 core OS files build # +# When set to 1, exclusively use builtins from compiler-rt. +# When set to 0, use EC's builtins. +USE_LLVM_COMPILER_RT:=0 + +ifeq ($(USE_LLVM_COMPILER_RT),1) +CFLAGS_CPU+=-DUSE_LLVM_COMPILER_RT +endif + # CPU specific compilation flags CFLAGS_CPU+=-mthumb ifeq ($(cc-name),clang) @@ -24,14 +32,12 @@ LDFLAGS_EXTRA+=-flto endif core-y=cpu.o debug.o init.o thumb_case.o mula.o -# When using clang, we get these as builtins from compiler-rt. -ifneq ($(cc-name),clang) +ifeq ($(USE_LLVM_COMPILER_RT),0) core-y+=div.o lmul.o ldivmod.o uldivmod.o endif core-y+=vecttable.o -# When using clang, we get these as builtins from compiler-rt. -ifneq ($(cc-name),clang) +ifeq ($(USE_LLVM_COMPILER_RT),0) core-y+=__builtin.o endif core-$(CONFIG_COMMON_PANIC_OUTPUT)+=panic.o |