Commit 5e8d780d authored by Sam Ravnborg's avatar Sam Ravnborg

kbuild: fix ia64 breakage after introducing make -rR

kbuild used $¤(*F to get filename of target without extension.
This was used in several places all over kbuild, but introducing
make -rR broke his for all cases where we specified full path to
target/prerequsite. It is assumed that make -rR disables old style
suffix-rules which is why is suddenly failed.

ia64 was impacted by this change because several div* routines in
arch/ia64/lib are build using explicit paths and then kbuild failed.

Thanks to David Mosberger-Tang <David.Mosberger@acm.org> for an explanation
what was the root-cause and for testing on ia64.

This patch also fixes two uses of $(*F) in arch/um
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent 598736c5
......@@ -1352,7 +1352,7 @@ quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))
a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \
$(NOSTDINC_FLAGS) $(CPPFLAGS) \
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
quiet_cmd_as_o_S = AS $@
cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
......
......@@ -8,7 +8,7 @@ USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m) $(USER_SINGLE_OBJS))
USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
$(USER_OBJS:.o=.%): \
c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(*F).o)
c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) $(CFLAGS_$(basetarget).o)
$(USER_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
-Dunix -D__unix__ -D__$(SUBARCH)__
......@@ -17,7 +17,7 @@ $(USER_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
UNPROFILE_OBJS := $(foreach file,$(UNPROFILE_OBJS),$(obj)/$(file))
$(UNPROFILE_OBJS:.o=.%): \
c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS)) $(CFLAGS_$(*F).o)
c_flags = -Wp,-MD,$(depfile) $(call unprofile,$(USER_CFLAGS)) $(CFLAGS_$(basetarget).o)
$(UNPROFILE_OBJS) : CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ \
-Dunix -D__unix__ -D__$(SUBARCH)__
......
......@@ -12,6 +12,10 @@ space := $(empty) $(empty)
# contain a comma
depfile = $(subst $(comma),_,$(@D)/.$(@F).d)
###
# filename of target with directory and extension stripped
basetarget = $(basename $(notdir $@))
###
# Escape single quote for use in echo statements
escsq = $(subst $(squote),'\$(squote)',$1)
......
......@@ -117,7 +117,7 @@ $(real-objs-m:.o=.lst): quiet_modtag := [M]
$(obj-m) : quiet_modtag := [M]
# Default for not multi-part modules
modname = $(*F)
modname = $(basetarget)
$(multi-objs-m) : modname = $(modname-multi)
$(multi-objs-m:.o=.i) : modname = $(modname-multi)
......
......@@ -80,8 +80,10 @@ obj-dirs += $(host-objdirs)
#####
# Handle options to gcc. Support building with separate output directory
_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) $(HOSTCFLAGS_$(*F).o)
_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) $(HOSTCXXFLAGS_$(*F).o)
_hostc_flags = $(HOSTCFLAGS) $(HOST_EXTRACFLAGS) \
$(HOSTCFLAGS_$(basetarget).o)
_hostcxx_flags = $(HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \
$(HOSTCXXFLAGS_$(basetarget).o)
ifeq ($(KBUILD_SRC),)
__hostc_flags = $(_hostc_flags)
......
......@@ -82,12 +82,12 @@ obj-dirs := $(addprefix $(obj)/,$(obj-dirs))
# than one module. In that case KBUILD_MODNAME will be set to foo_bar,
# where foo and bar are the name of the modules.
name-fix = $(subst $(comma),_,$(subst -,_,$1))
basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(*F)))"
basename_flags = -D"KBUILD_BASENAME=KBUILD_STR($(call name-fix,$(basetarget)))"
modname_flags = $(if $(filter 1,$(words $(modname))),\
-D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
_c_flags = $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(*F).o)
_a_flags = $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(*F).o)
_c_flags = $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(basetarget).o)
_a_flags = $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
_cpp_flags = $(CPPFLAGS) $(EXTRA_CPPFLAGS) $(CPPFLAGS_$(@F))
# If building the kernel in a separate objtree expand all occurrences
......
......@@ -72,7 +72,7 @@ $(modules:.ko=.mod.c): __modpost ;
# Step 5), compile all *.mod.c files
# modname is set to make c_flags define KBUILD_MODNAME
modname = $(*F)
modname = $(notdir $(@:.mod.o=))
quiet_cmd_cc_o_c = CC $@
cmd_cc_o_c = $(CC) $(c_flags) $(CFLAGS_MODULE) \
......
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