path: root/arch/um/sys-x86_64/Makefile
diff options
authorPaolo 'Blaisorblade' Giarrusso <>2006-05-01 12:16:05 -0700
committerLinus Torvalds <>2006-05-01 18:17:45 -0700
commit7b12b9137930eb821b68e1bfa11e9de692208620 (patch)
treee2bfd312a5f2dd5665f2a834af679148bb1718d3 /arch/um/sys-x86_64/Makefile
parent275e6e1ee2bafde77e9390b27e876fa83f24cb60 (diff)
[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 = ... + $(obj)/unmap.%: _c_flags = ... Signed-off-by: Paolo 'Blaisorblade' Giarrusso <> Acked-by: Jeff Dike <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'arch/um/sys-x86_64/Makefile')
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/um/sys-x86_64/Makefile b/arch/um/sys-x86_64/Makefile
index 6d3b29c74533..c19794d435d6 100644
--- a/arch/um/sys-x86_64/Makefile
+++ b/arch/um/sys-x86_64/Makefile
@@ -16,16 +16,16 @@ subarch-obj-$(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
extra-$(CONFIG_MODE_TT) += unmap.o
+UNPROFILE_OBJS := stub_segv.o
include arch/um/scripts/Makefile.rules
-$(obj)/stub_segv.o $(obj)/unmap.o: \
- _c_flags = $(call unprofile,$(CFLAGS))
+$(obj)/unmap.%: _c_flags = $(call unprofile,$(CFLAGS))