kernel_optimize_test/arch/um/sys-x86_64/Makefile
Paolo 'Blaisorblade' Giarrusso 7b12b91379 [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 <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-01 18:17:45 -07:00

32 lines
746 B
Makefile

#
# Copyright 2003 PathScale, Inc.
#
# Licensed under the GPL
#
obj-y = bugs.o delay.o fault.o ldt.o mem.o ptrace.o ptrace_user.o \
sigcontext.o signal.o syscalls.o syscall_table.o sysrq.o ksyms.o \
tls.o
obj-$(CONFIG_MODE_SKAS) += stub.o stub_segv.o
obj-$(CONFIG_MODULES) += um_module.o
subarch-obj-y = lib/bitops.o lib/csum-partial.o lib/memcpy.o lib/thunk.o
subarch-obj-$(CONFIG_MODULES) += kernel/module.o
ldt-y = ../sys-i386/ldt.o
USER_OBJS := ptrace_user.o sigcontext.o
USER_OBJS += user-offsets.s
extra-y += user-offsets.s
extra-$(CONFIG_MODE_TT) += unmap.o
UNPROFILE_OBJS := stub_segv.o
CFLAGS_stub_segv.o := $(CFLAGS_NO_HARDENING)
include arch/um/scripts/Makefile.rules
$(obj)/unmap.%: _c_flags = $(call unprofile,$(CFLAGS))