From: Kev <klmitch@MIT.EDU>
To: Kanoj Sarcar <kanoj@google.engr.sgi.com>
Cc: linux-kernel@vger.rutgers.edu, linux-mm@kvack.org
Subject: Re: dso loading question
Date: Thu, 27 May 1999 09:53:50 EDT [thread overview]
Message-ID: <199905271353.JAA09622@nerd-xing.mit.edu> (raw)
In-Reply-To: Your message of "Wed, 26 May 1999 21:44:41 PDT." <199905270444.VAA30288@google.engr.sgi.com>
> [kanoj@entity /tmp]$ strace ./a.out
> execve("./a.out", ["./a.out"], [/* 18 vars */]) = 0
> brk(0) = 0x8049558
> open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
lists dso's to link before any other dynamic linking occurs; useful for
overriding, say, malloc().
> open("/etc/ld.so.cache", O_RDONLY) = 3
Contains a cache of where dso's are located on the disk, so the dynamic
linker doesn't have to search for them.
> I am trying to understand how dso loading works in Linux, specially at
> program startup time.
You might want to look at the source...
--
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next prev parent reply other threads:[~1999-05-27 13:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-05-27 4:44 dso loading question Kanoj Sarcar
1999-05-27 13:53 ` Kev [this message]
1999-05-27 19:50 ` Ralf Baechle
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