From: Daniel Jacobowitz <dan@codesourcery.com>
To: Tristan Gingold <gingold@adacore.com>
Cc: Jan Kratochvil <jan.kratochvil@redhat.com>, gdb-patches@sourceware.org
Subject: Re: Regression on prelinked-sepdebug-shlibs
Date: Thu, 07 Jan 2010 14:26:00 -0000 [thread overview]
Message-ID: <20100107142554.GH22607@caradoc.them.org> (raw)
In-Reply-To: <D7E39659-048F-4B86-B7ED-8C8CA4834D5A@adacore.com>
On Thu, Jan 07, 2010 at 03:22:21PM +0100, Tristan Gingold wrote:
> $ readelf -S sep
> There are 14 section headers, starting at offset 0x136c:
>
> Section Headers:
> [Nr] Name Type Addr Off Size ES Flg Lk Inf Al
> [ 0] NULL 00000000 000000 000000 00 0 0 0
> [ 1] sec_zero PROGBITS 00000000 001000 00000a 00 AX 0 0 1
Notice the non-zero offset.
% readelf -l sep
Elf file type is EXEC (Executable file)
Entry point 0x80480f8
There are 5 program headers, starting at offset 52
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
LOAD 0x001000 0x00000000 0x00000000 0x0000a 0x0000a R E 0x1000
LOAD 0x0010d4 0x080480d4 0x080480d4 0x00039 0x00039 R E 0x1000
The file offset 0 is not mapped. That means the program headers, at
offset 52, are not mapped. So ld.so can't find them.
I'm surprised the static executable worked, but I can see how that
might happen.
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2010-01-07 14:26 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-25 20:05 Jan Kratochvil
2010-01-04 9:50 ` Tristan Gingold
2010-01-04 10:24 ` Jan Kratochvil
2010-01-04 11:54 ` Tristan Gingold
2010-01-04 15:22 ` Tristan Gingold
2010-01-04 18:10 ` Jan Kratochvil
2010-01-05 11:02 ` Tristan Gingold
2010-01-05 16:15 ` Jan Kratochvil
2010-01-06 11:20 ` Tristan Gingold
2010-01-06 16:38 ` Tristan Gingold
2010-01-06 18:05 ` Jan Kratochvil
2010-01-06 19:16 ` Daniel Jacobowitz
2010-01-07 11:02 ` Tristan Gingold
2010-01-07 11:10 ` Jan Kratochvil
2010-01-07 11:18 ` Tristan Gingold
2010-01-07 13:42 ` Daniel Jacobowitz
2010-01-07 14:21 ` Tristan Gingold
2010-01-07 14:26 ` Daniel Jacobowitz [this message]
2010-01-07 14:37 ` Tristan Gingold
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