From 7b12b9137930eb821b68e1bfa11e9de692208620 Mon Sep 17 00:00:00 2001 From: Paolo 'Blaisorblade' Giarrusso Date: Mon, 1 May 2006 12:16:05 -0700 Subject: [PATCH] uml: cleanup unprofile expression and build infrastructure *) Rather than duplicate in various buggy ways the application of CFLAGS_NO_HARDENING and UNPROFILE (which apply to the same files), centralize it in Makefile.rules. UNPROFILE_OBJS mustn't be listed in USER_OBJS but are compiled as such. I've also verified that unprofile didn't work in the current form, because we set _c_flags directly (using CFLAGS and not USER_CFLAGS, which is wrong), which is normally used by c_flags, but we also override c_flags for all USER_OBJS, and there we don't call unprofile. Instead it only worked for unmap.o, the only one which wasn't a USER_OBJ. We need to set c_flags (which is not a public Kbuild API) to clear a lot of compilation flags like -nostdinc which Kbuild forces on everything. *) Rather than $(CFLAGS_$(notdir $@)), which expands to CFLAGS_anObj.s when building "anObj.s", use $(CFLAGS_$(*F).o) which always accesses CFLAGS_anObj.o, like done by Kbuild. *) Make c_flags apply to all targets having the same basename, rather than listing .s, .i, .lst and .o, with the use (which I tested) of $(USER_OBJS:.o=.%): c_flags = ... and of - $(obj)/unmap.c: _c_flags = ... + $(obj)/unmap.%: _c_flags = ... Signed-off-by: Paolo 'Blaisorblade' Giarrusso Acked-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/kernel/skas/Makefile | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'arch/um/kernel') diff --git a/arch/um/kernel/skas/Makefile b/arch/um/kernel/skas/Makefile index ad842964707a..ea3a8e409a6e 100644 --- a/arch/um/kernel/skas/Makefile +++ b/arch/um/kernel/skas/Makefile @@ -6,16 +6,11 @@ obj-y := clone.o exec_kern.o mem.o mmu.o process_kern.o \ syscall.o tlb.o uaccess.o -USER_OBJS := clone.o - -include arch/um/scripts/Makefile.rules - # clone.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_clone.o := $(CFLAGS_NO_HARDENING) +UNPROFILE_OBJS := clone.o -# since we're setting c_flags we _must_ add $(CFLAGS_$(*F).o). - -$(obj)/clone.o : c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS)) $(CFLAGS_$(*F).o) +include arch/um/scripts/Makefile.rules -- cgit v1.2.3-59-g8ed1b