From: John Reiser <jreiser@BitWagon.com>
To: "Udo A. Steinberg" <us15@os.inf.tu-dresden.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.2. ELF loader mystery
Date: Sat, 10 Jan 2004 08:24:56 -0800 [thread overview]
Message-ID: <40002758.7020705@BitWagon.com> (raw)
In-Reply-To: <20040110161936.57954de8@argon.inf.tu-dresden.de>
JR> Yes, there was an interpretation of ELF that p_filesz < p_memsz implied .bss
JR> only for the last PT_LOAD in the array of Elf32_Phdr. Later this was changed
JR> so that .bss applied only on the PT_LOAD with the highest p_vaddr, regardless
JR> of position in Elf32_Phdr. ...
Udo> Where did this interpretation come from? The ELF standard (1.2) I'm looking at
Udo> from: http://x86.ddj.com/ftp/manuals/tools/elf.pdf says ...
Diffusion can be a slow and erratic process, resulting in "bugs." "The ELF
standard" (there have been different versions) was not widely available,
and/or not widely consulted, for some parts of its lifetime.
Also, the standard contains some generalizations that were not common usage;
common usage was [is] .text < .data < .bss, with single pieces of each.
--
prev parent reply other threads:[~2004-01-10 16:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-01-10 13:53 Linux 2.2. ELF loader mystery Udo A. Steinberg
2004-01-10 14:13 ` Udo A. Steinberg
2004-01-10 14:59 ` John Reiser
2004-01-10 15:19 ` Udo A. Steinberg
2004-01-10 16:24 ` John Reiser [this message]
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