[ un-breaking Loic email address in CC so people reply to the right place--- not sure what happened there ]
On Thu, Sep 2, 2010 at 9:53 AM, Dave Martin <dave.mar...@linaro.org> wrote: > On Thu, Sep 2, 2010 at 9:31 AM, Ramana Radhakrishnan > <ramana.radhakrish...@arm.com> wrote: >> >>> >>> > arm-linux-gnueabi-gcc -g -DDEBUG -Os -fno-strict-aliasing >>> > -fno-common -ffixed-r8 -ffunction-sections -msoft-float -Wcast-align >>> > -Wall -D__KERNEL__ -DTEXT_BASE= -fno-builtin -ffreestanding -isystem >>> > /usr/lib/gcc/arm-linux-gnueabi/4.5.1/include -pipe -march=armv4t >>> > -mlong-calls -mtune=arm7tdmi-s -DCONFIG_ARM -D__ARM__ >>> > -mthumb-interwork -Wall -Wstrict-prototypes -Wcast-align -Wextra >>> > -Werror -Iobj_redbee-econotag_board -I../board -DBOARD=redbee-econotag >>> > -I../lib/include -I../src -I. -mthumb -mcallee-super-interworking -MMD >>> > -c -o obj_redbee-econotag_board/sleep.o sleep.c >>> > sleep.c:1:0: error: AAPCS does not support -mcallee-super-interworking >>> >>> This sounds like a missing implementation rather than just a toolchain >>> flag; or perhaps it's not needed at all with AAPCS? >> >> -mcallee-super-interworking is ancient and need not be used with AAPCS >> toolchains. The linker will deal with interworking issues on AAPCS >> toolchains by inserting stubs at appropriate locations and arranging for >> correct control and state transfer at the required interfaces. > > Note that this may only work if the calls to/from the ROM are via > linker-visible interfaces. > > This means that no magic interworking would happen for things like > calling magic addresses, or for callback pointers passed into the ROM. > This is because the the tools have no way to know whether the target > symbols for call/return are interworking or not in these cases. > > There are some ways around this--- but it's probably best not to get > into that unless it's really needed. > > Cheers > ---Dave > >> >> cheers >> Ramana >> >> >> >> >> >> _______________________________________________ >> linaro-dev mailing list >> linaro-dev@lists.linaro.org >> http://lists.linaro.org/mailman/listinfo/linaro-dev >> > _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
