Re: 2.4 kernels + >=binutils-2.14.90.0.8

[Kumba <kumba@gentoo.org>]

Thiemo Seufer wrote:

> Well, then the effects I wrote about were not caused by that patch
> but by a broken linker. Re-doing the final link with the old linker
> should be enough to prove that.
> 
>>From the different alignment, this _might_ be related to Maciej's
> binutils patch for PAGE_SIZE != 4k.
> http://sources.redhat.com/ml/binutils/2003-12/msg00380.html

This patch looks to be the culprit.  Removing it from 
binutils-2.15.90.0.1.1 source and rebuilding my cross-compiler creates a 
bootable kernel (2.4.25).  I also noticed it changed the output of 
'readelf -l vmlinux' so that there is a second 'LOAD' program header. 
The PaX patch doesn't make a bit of difference, and I've test booted 
kernels built without Maciej's patch, including and excluding the PaX patch.

In the readelf -l <target> snippets below, one was built with Maciej's 
patch, one without, and the one without is the one that booted on my Indy.


With:
Elf file type is EXEC (Executable file)
Entry point 0x88144040
There are 3 program headers, starting at offset 52

Program Headers:
   Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
   REGINFO        0x1573c0 0x881573c0 0x881573c0 0x00018 0x00018 R   0x4
   LOAD           0x000000 0x88000000 0x88000000 0x16d000 0x194400 RWE 
0x10000
   PAX_FLAGS      0x000000 0x00000000 0x00000000 0x00000 0x00000     0x4

  Section to Segment mapping:
   Segment Sections...
    00     .reginfo
    01     .text .fixup .kstrtab __ex_table __ksymtab .data.init_task 
.text.init .data.init .setup.init .initcall.init .data.cacheline_aligned 
.reginfo .data .bss
    02



Without:
Elf file type is EXEC (Executable file)
Entry point 0x88144040
There are 4 program headers, starting at offset 52

Program Headers:
   Type           Offset   VirtAddr   PhysAddr   FileSiz MemSiz  Flg Align
   REGINFO        0x1563c0 0x881573c0 0x881573c0 0x00018 0x00018 R   0x4
   LOAD           0x001000 0x88002000 0x88002000 0x13ffc0 0x13ffc0 R E 
0x1000
   LOAD           0x141000 0x88142000 0x88142000 0x2b000 0x52400 RWE 0x1000
   PAX_FLAGS      0x000000 0x00000000 0x00000000 0x00000 0x00000     0x4

  Section to Segment mapping:
   Segment Sections...
    00     .reginfo
    01     .text .fixup .kstrtab __ex_table __ksymtab
    02     .data.init_task .text.init .data.init .setup.init 
.initcall.init .data.cacheline_aligned .reginfo .data .bss
    03




--Kumba

-- 
"Such is oft the course of deeds that move the wheels of the world: 
small hands do them because they must, while the eyes of the great are 
elsewhere."  --Elrond