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 = ... + $(obj)/unmap.%: _c_flags = ... Signed-off-by: Paolo 'Blaisorblade' Giarrusso Acked-by: Jeff Dike Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/um/sys-x86_64/Makefile | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'arch/um/sys-x86_64') diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile index 6d3b29c7453..c19794d435d 100644 --- a/arch/um/sys-x86_64/Makefile +++ b/arch/um/sys-x86_64/Makefile @@ -16,16 +16,16 @@ subarch-obj-$(CONFIG_MODULES) += kernel/module.o ldt-y = ../sys-i386/ldt.o -USER_OBJS := ptrace_user.o sigcontext.o stub_segv.o +USER_OBJS := ptrace_user.o sigcontext.o USER_OBJS += user-offsets.s extra-y += user-offsets.s -CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING) - extra-$(CONFIG_MODE_TT) += unmap.o +UNPROFILE_OBJS := stub_segv.o +CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING) + include arch/um/scripts/Makefile.rules -$(obj)/stub_segv.o $(obj)/unmap.o: \ - _c_flags = $(call unprofile,$(CFLAGS)) +$(obj)/unmap.%: _c_flags = $(call unprofile,$(CFLAGS)) -- cgit v1.2.3