On 4/26/15, 11:53 AM, "Wiles, Keith" <keith.wiles at intel.com> wrote:
>Hi All, > >I noticed in my builds with foo.S file I would get a warning from the >compiler the foo_s.o.tmp linker file will not be used as the code is not >linked. A strange error and the foo_s.o file would not be created. In the >mk/internal/rte.compile-pre.mk we have the following > ># command to assemble a .S file to generate an object >ifeq ($(USE_HOST),1) >S_TO_O = $(CPP) $(HOST_CPPFLAGS) $($(@)_CPPFLAGS) $(HOST_EXTRA_CPPFLAGS) >$< $(@).tmp && \ > $(HOSTAS) $(HOST_ASFLAGS) $($(@)_ASFLAGS) $(HOST_EXTRA_ASFLAGS) -o $@ >$(@).tmp >S_TO_O_STR = $(subst ','\'',$(S_TO_O)) #'# fix syntax highlight >S_TO_O_DISP = $(if $(V),"$(S_TO_O_STR)"," HOSTAS $(@)") >else >S_TO_O = $(CPP) $(CPPFLAGS) $($(@)_CPPFLAGS) $(EXTRA_CPPFLAGS) $< -o >$(@).tmp && \ > $(AS) $(ASFLAGS) $($(@)_ASFLAGS) $(EXTRA_ASFLAGS) -o $@ $(@).tmp >S_TO_O_STR = $(subst ','\'',$(S_TO_O)) #'# fix syntax highlight >S_TO_O_DISP = $(if $(V),"$(S_TO_O_STR)"," AS $(@)") >endif > >I had to change the above ?.tmp? strings to ?.s? to remove this warning >and get the foo_s.o file created. Using the .s the file name becomes >foo_s.o.s Compiler used on Ubuntu 14.04 'gcc (Ubuntu 4.8.2-19ubuntu1) 4.8.2' > >Did not try this with clang or any other compiler, but I expect we can >safely change the ?.tmp? to ?.s? IMO > >Anyone else notice this problem? > >Regards, >++Keith >