Messages in this thread | | | From | Herbert Rosmanith <> | Subject | Re: [PATCH] binutils-2.16.90.0.3: can't compile 2.4.30 | Date | Mon, 23 May 2005 13:13:56 +0200 (MET DST) |
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> it's not right to try to 32bit move a segment register anyway.
hmm ... sorry for writing without checking. it's true that as complains. but for e.g. nasm, it's no problem at all. e.g. if you consider this example:
bash-2.05# cat test.nasm
bits 32 section .text
mov eax,ds mov ds,eax
bash-2.05# nasm -f elf test.nasm bash-2.05# objdump -d test.o
test.o: file format elf32-i386
Disassembly of section .text:
00000000 <.text>: 0: 8c d8 movl %ds,%eax 2: 8e d8 movl %eax,%ds
of course, it's still not possible to move 32 bits into a segreg, so what? the processor will silently ignore the upper word, I guess. (my ix86 handbook is in the office, so I can't look it up).
so, this probably means that it's *not* the linux kernel which contains wrong code, but as from binutils-2.16 is being to restrictive when doing sanity checking, agreed?
best regards, herbert rosmanith
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