Dear Peter Tyser, In message <1276632905.32134.1535.ca...@petert> you wrote: > > I think by default its not possible to guarantee function order in gcc's > output if a file contains multiple functions. We could create a basic
Correct. If you check for example the "timer" example program (build for some 8xx system, say TQM860L) you can see that it's sufficient to have a forward declaration for a static function before the real code that the C compiler will place the code for this function in front, whichis probably not what you want here. > linker script... I think we could also do it with some gcc/ld-foo like: > > --- a/examples/standalone/Makefile > +++ b/examples/standalone/Makefile > @@ -78,6 +78,7 @@ CPPFLAGS += -I.. > # inconsistent. > ifeq ($(ARCH),powerpc) > CFLAGS := $(filter-out $(RELFLAGS),$(CFLAGS)) > +CFLAGS += -fno-toplevel-reorder > endif This alone is sufficient to "fix" for example the aforementioned "timer" example program. Without: ... 00040428 T strcmp 000400e8 T timer 00040000 t timer_handler 00040318 T tstc 00040398 T udelay ... With: ... 00040428 T strcmp 00040000 T timer 000402b8 t timer_handler 00040318 T tstc 00040398 T udelay ... > all: $(obj).depend $(OBJS) $(LIB) $(SREC) $(BIN) $(ELF) > @@ -88,7 +89,7 @@ $(LIB): $(obj).depend $(LIBOBJS) > > $(ELF): > $(obj)%: $(obj)%.o $(LIB) > - $(LD) -g -Ttext $(STANDALONE_LOAD_ADDR) \ > + $(LD) -g -Ttext $(STANDALONE_LOAD_ADDR) -sort-common \ > -o $@ -e $(SYM_PREFIX)$(notdir $(<:.o=)) $< $(LIB) \ > -L$(gcclibdir) -lgcc I'm not sure if this is needed. > Could you try the above change with your flash_wp test case? Or make > the flash_wp app public? It should put the first function at the base > of the image in theory. I think the "timer" code is sufficient to show the problem, and that your fix helps. If Timur confirms it's working for his secret code too we should apply this. Thanks a lot! Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de Is a computer language with goto's totally Wirth-less? _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot