Re: [Qemu-devel] some ROMs questions

[David Gibson]

On Fri, Apr 06, 2018 at 01:59:03PM +0200, BALATON Zoltan wrote:
> On Fri, 6 Apr 2018, Michael Tokarev wrote:
> > 02.04.2018 17:30, BALATON Zoltan wrote:
> > > On Mon, 2 Apr 2018, Michael Tokarev wrote:
> > > > roms/u-boot-sam460ex/tools/updater/stubs.c -
> > > > it is some strange symlink pointing to a strange place, probably should 
> > > > be removed?
> > > 
> > > This does not seem to matter for building the rom image but this can be 
> > > fixed by converting it to a relative path. I've done that and will send a 
> > > patch to update the submodule as well to use the QEMU repo now that we 
> > > have a mirror there. Thanks for finding this.
> > 
> > Hmm, I've no idea how to pull a submodule change.. :)
> 
> git submodule update? But it's not in master yet only in David's
> ppc-for-2.12 branch I think.
> 
> > But I've one more question about this rom.  When I'm trying to build it,
> > the build fails:
> > 
> > roms/u-boot-sam460ex$ make Sam460ex_config 
> > CROSS_COMPILE=powerpc64-linux-gnu-
> > Generating include/autoconf.mk
> > cc1: error: -mcall not supported in this configuration
> > cc1: error: -mrelocatable not supported in this configuration
> > cc1: error: -meabi not supported in this configuration
> > cc1: error: -m64 requires a PowerPC64 cpu
> > Generating include/autoconf.mk.dep
> > cc1: error: -mcall not supported in this configuration
> > cc1: error: -mrelocatable not supported in this configuration
> > cc1: error: -meabi not supported in this configuration
> > cc1: error: -m64 requires a PowerPC64 cpu
> > Configuring for Sam460ex board...
> > 
> > roms/u-boot-sam460ex$ make CROSS_COMPILE=powerpc64-linux-gnu-
> > ...
> > make -C arch/powerpc/cpu/ppc4xx start.o
> > make[1]: Entering directory 
> > '/build/qemu/debian-qemu/roms/u-boot-sam460ex/arch/powerpc/cpu/ppc4xx'
> > powerpc64-linux-gnu-gcc   -D__ASSEMBLY__ -g  -Os   -mrelocatable -fPIC 
> > -meabi -ffunction-sections -fdata-sections -D__KERNEL__ 
> > -DTEXT_BASE=0xFFF80000 
> > -I/build/qemu/debian-qemu/roms/u-boot-sam460ex/include -fno-builtin 
> > -ffreestanding -nostdinc -isystem 
> > /usr/lib/gcc-cross/powerpc64-linux-gnu/6/include -pipe  -DCONFIG_PPC 
> > -D__powerpc__ -DCONFIG_4xx -ffixed-r2 -mstring -msoft-float -Wa,-m440 
> > -mcpu=440 -DCONFIG_440=1 -I../bios_emulator/scitech/include 
> > -I../bios_emulator/scitech/src/x86emu -Dprintk=printf   \
> >        -o start.o start.S -c
> > start.S:1:0: error: -mcall not supported in this configuration
> > /*
> > 
> > start.S:1:0: error: -mrelocatable not supported in this configuration
> > start.S:1:0: error: -meabi not supported in this configuration
> > start.S:1:0: error: -m64 requires a PowerPC64 cpu
> > /build/qemu/debian-qemu/roms/u-boot-sam460ex/config.mk:249: recipe for 
> > target 'start.o' failed
> > make[1]: *** [start.o] Error 1
> > make[1]: Leaving directory 
> > '/build/qemu/debian-qemu/roms/u-boot-sam460ex/arch/powerpc/cpu/ppc4xx'
> > Makefile:353: recipe for target 'arch/powerpc/cpu/ppc4xx/start.o' failed
> > make: *** [arch/powerpc/cpu/ppc4xx/start.o] Error 2
> > 
> > What I'm doing wrong?
> > 
> > $ powerpc64-linux-gnu-gcc --version
> > powerpc64-linux-gnu-gcc (Debian 6.3.0-18) 6.3.0 20170516
> 
> Note sure, maybe building it with ppc64 compiler or a too new one? This
> board is 32bit and the source is from 2011 so I'm not sure what it does with
> recent compilers. I have powerpc-elf-gcc 4.9.3 which works.

Yeah, if it's a 32-bit board, I'm pretty sure you'll need a 32-bit
compiler.  Or at least add -m32 if it's a biarch compiler.

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

signature.asc
Description: PGP signature