Re: [Qemu-devel] building openbios-qemu.elf?

[Blue Swirl <blauwirbel@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1686 bytes --]

On 2/24/09, Blue Swirl <blauwirbel@gmail.com> wrote:
> 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.*?

Would this patch fix the problem?

[-- Attachment #2: fix_ldscript.diff --]
[-- Type: plain/text, Size: 496 bytes --]