From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Wed, 22 Jun 2005 10:24:19 -1000
From: Tim Newsham <newsham@lava.net>
To: 9fans@cse.psu.edu
Message-ID: <Pine.BSI.4.61.0506221015560.5014@malasada.lava.net>
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Subject: [9fans] 8l vs. acid?
Topicbox-Message-UUID: 5f4b55ae-ead0-11e9-9d60-3106f5b1d025

Hi,
    I'm seeing some strange behavior in the linking and debugging
of a small program of mine:
    http://lava.net/~newsham/quest/

When I build it and inspect it in acid, it shows the map as:
   {{"text", 0x80100020, 0x80100041, 0x00000020},
    {"data", 0x80100041, 0x80100049, 0x00000041}}

and indeed I see the data starting at 0x80100041.  However
the relocation values in the binary and the symbol table
both think that the "hello" variable starts at 0x80101000.

Now if I change the -T0x80100020 to -T0x100020 the map is
even stranger:
   {{"text", 0x00001020, 0x00001041, 0x00000020},
    {"data", 0x00002000, 0x00002008, 0x00000041}}

however, the symbols say that the _main and hello are at
0x100020 and 0x101000 respectively.

What gives?  Who's to blame here, libmach?

Tim Newsham
http://www.lava.net/~newsham/