[coreboot] Black window when running qemu with coreboot+LegacyBIOS

[Kevin O'Connor]

On Thu, Jun 19, 2008 at 04:00:04PM +0800, Zhang Rui wrote:
> 2008/6/19 Kevin O'Connor <kevin at koconnor.net>:
> > $ objdump -x out/bios.bin.elf
> >
> > out/bios.bin.elf:     file format elf32-i386
> > out/bios.bin.elf
> > architecture: i386, flags 0x00000112:
> > EXEC_P, HAS_SYMS, D_PAGED
> > start address 0x000f66a0
> >
> > Program Header:
> >    LOAD off    0x00001000 vaddr 0x000f0000 paddr 0x000f0000 align 2**12
> >         filesz 0x00010000 memsz 0x00010000 flags rw-
> >
> > Sections:
> > Idx Name          Size      VMA       LMA       File off  Algn
> >  0 .data         00010000  000f0000  000f0000  00001000  2**0
> >                  CONTENTS, ALLOC, LOAD, DATA
> > SYMBOL TABLE:
> > 000f0000 l    d  .data  00000000 .data
> > 00010000 g       *ABS*  00000000 _binary_out_bios_bin_size
> > 00100000 g       *ABS*  00000000 __bss_start
> > 00100000 g       .data  00000000 _binary_out_bios_bin_end
> > 00100000 g       *ABS*  00000000 _edata
> > 00100000 g       *ABS*  00000000 _end
> > 000f0000 g       .data  00000000 _binary_out_bios_bin_start
> >
> legacybios/out> objdump -x bios.bin.elf
> bios.bin.elf:     file format elf32-i386
> bios.bin.elf
> architecture: i386, flags 0x00000112:
> EXEC_P, HAS_SYMS, D_PAGED
> start address 0x000f66e0
> 
> Program Header:
>     LOAD off    0x00000000 vaddr 0x08048000 paddr 0x08048000 align 2**12
>          filesz 0x00010074 memsz 0x00010074 flags rw-
> 
> Sections:
> Idx Name          Size      VMA       LMA       File off  Algn
>   0 .data         00010000  08048074  08048074  00000074  2**0
>                   CONTENTS, ALLOC, LOAD, DATA
> SYMBOL TABLE:
> 08048074 l    d  .data  00000000 .data
> 00000000 l    d  *ABS*  00000000 .shstrtab
> 00000000 l    d  *ABS*  00000000 .symtab
> 00000000 l    d  *ABS*  00000000 .strtab
> 00010000 g       *ABS*  00000000 _binary_out_bios_bin_size
> 08058074 g       *ABS*  00000000 __bss_start
> 08058074 g       .data  00000000 _binary_out_bios_bin_end
> 08058074 g       *ABS*  00000000 _edata
> 08058074 g       *ABS*  00000000 _end
> 08048074 g       .data  00000000 _binary_out_bios_bin_start
> 

Looks like a difference between our versions of 'ld'.  The build
effectively does:

ld -melf_i386 -e 0xf66e0 -Ttext 0xf0000 -b binary bios.bin -o bios.bin.elf

I'm not sure why it builds a different elf on your machine.  Can you
try modifying tools/buildrom.py so that it uses "-Tdata" instead of
"-Ttext"?

Myles, maybe this was the same problem you were seeing?

-Kevin