Date: Fri, 21 Jan 2000 19:52:18 +0000 From: Tony Finch <fanf@demon.net> To: freebsd-hackers@freebsd.org, jdp@freebsd.org Cc: Tony Finch <fanf@demon.net> Subject: Re: LD_PRELOAD Message-ID: <E12Bk6U-00032O-00@fanf.noc.demon.net> In-Reply-To: <E12BjiC-00031J-00@fanf.noc.demon.net> References: <E12BjiC-00031J-00@fanf.noc.demon.net>
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Tony Finch <fanf@demon.net> wrote:
>
> This brings me on to the second problem. I want to do some
> initialization of my library before the real action starts. On Solaris
> the linker calls a function in the object called _init() when it is
> loaded; it's easy to make this work. I can see similar functionality
> in FreeBSD's rtld but it looks like I have to jump through obscure
> hoops to make it work (an ELF DT_INIT section if I understand it
> correctly).
After some more playing I found that adding the following declarations
shut up the linker and caused the _init and _fini functions to be
called as I desired. My only remaining questions are whether the gcc
command line I used is correct and if it is what does it all mean?
#ifdef __FreeBSD__
static void _init(void) __attribute__ ((section (".init")));
static void _fini(void) __attribute__ ((section (".fini")));
#endif
Tony.
--
the dot at person
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