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Date: Tue, 24 Feb 2009 22:23:55 +0200
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Subject: Re: [Qemu-devel] building openbios-qemu.elf?
From: Blue Swirl <blauwirbel@gmail.com>
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To: qemu-devel@nongnu.org
Cc: openbios@openbios.org

On 2/23/09, Hollis Blanchard <hollisb@us.ibm.com> wrote:
> Hi, I just tried to build openbios-qemu.elf, but it is a little too big
>  (1MB + 4 bytes):
>
>  Elf file type is EXEC (Executable file)
>  Entry point 0xfff08000
>  There are 3 program headers, starting at offset 52
>
>  Program Headers:
>   Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
>   LOAD           0x000094 0xfff00000 0xfff00000 0x100000 0x100000 RWE 0x4
>   LOAD           0x100094 0xfffffffc 0xfffffffc 0x00004 0x00004 R E 0x1
>   GNU_STACK      0x000000 0x00000000 0x00000000 0x00000 0x00000 RWE 0x4
>
>   Section to Segment mapping:
>   Segment Sections...
>    00     .text.vectors .text .rodata .data .sdata .bss .sbss
>    01     .romentry
>    02
>
>  In contrast, the openbios-ppc binary in qemu looks like this:
>
>  Elf file type is EXEC (Executable file)
>  Entry point 0xfff08000
>  There are 2 program headers, starting at offset 52
>
>  Program Headers:
>   Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
>   LOAD           0x000074 0xfff00000 0xfff00000 0x41044 0x4bc44 RWE 0x4
>   LOAD           0x0410b8 0xfffffffc 0xfffffffc 0x00004 0x00004 R E 0x1
>
>   Section to Segment mapping:
>   Segment Sections...
>    00     .text.vectors .text .rodata .data .sdata .bss .sbss.1 .sbss.2 .sbss.3 .sbss.4 .sbss.5 .sbss.6 .sbss.7 .sbss.8
>    01     .romentry
>
>  I'm building with gcc 4.2.3. Any ideas?

The ldscript does not handle sdata and sbss.*?