diff options
Diffstat (limited to 'arch/um/kernel/skas/Makefile')
| -rw-r--r-- | arch/um/kernel/skas/Makefile | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/arch/um/kernel/skas/Makefile b/arch/um/kernel/skas/Makefile index 6f86d53e3d69..3384be42691f 100644 --- a/arch/um/kernel/skas/Makefile +++ b/arch/um/kernel/skas/Makefile @@ -3,14 +3,48 @@ # Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) # -obj-y := stub.o mmu.o process.o syscall.o uaccess.o +obj-y := stub.o mmu.o process.o syscall.o uaccess.o \ + stub_exe_embed.o + +# Stub executable + +stub_exe_objs-y := stub_exe.o + +stub_exe_objs := $(foreach F,$(stub_exe_objs-y),$(obj)/$F) + +# Object file containing the ELF executable +$(obj)/stub_exe_embed.o: $(src)/stub_exe_embed.S $(obj)/stub_exe + +$(obj)/stub_exe.dbg: $(stub_exe_objs) FORCE + $(call if_changed,stub_exe) + +$(obj)/stub_exe: OBJCOPYFLAGS := -S +$(obj)/stub_exe: $(obj)/stub_exe.dbg FORCE + $(call if_changed,objcopy) + +quiet_cmd_stub_exe = STUB_EXE $@ + cmd_stub_exe = $(CC) -nostdlib -o $@ \ + $(filter-out $(UM_GPROF_OPT) $(UM_GCOV_OPT),$(KBUILD_CFLAGS)) $(STUB_EXE_LDFLAGS) \ + $(filter %.o,$^) + +STUB_EXE_LDFLAGS = -Wl,-n -static + +targets += stub_exe.dbg stub_exe $(stub_exe_objs-y) + +# end # stub.o is in the stub, so it can't be built with profiling # GCC hardened also auto-enables -fpic, but we need %ebx so it can't work -> # disable it CFLAGS_stub.o := $(CFLAGS_NO_HARDENING) -UNPROFILE_OBJS := stub.o +CFLAGS_stub_exe.o := $(CFLAGS_NO_HARDENING) + +# Clang will call memset() from __builtin_alloca() when stack variable +# initialization is enabled, which is used in stub_exe.c. +CFLAGS_stub_exe.o += $(call cc-option, -ftrivial-auto-var-init=uninitialized) + +UNPROFILE_OBJS := stub.o stub_exe.o KCOV_INSTRUMENT := n include $(srctree)/arch/um/scripts/Makefile.rules |