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Re: Static Initializer
- From: Nathan Sidwell <nathan at codesourcery dot com>
- To: Kartchner Val Civ OO-ALC/MASHA <Val dot Kartchner at HILL dot af dot mil>
- Cc: "'gcc-help at gcc dot gnu dot org'" <gcc-help at gcc dot gnu dot org>, "'gcc at gcc dot gnu dot org'" <gcc at gcc dot gnu dot org>,"'gcc at gnu dot org'" <gcc at gnu dot org>
- Date: Mon, 18 Oct 2004 17:31:28 +0100
- Subject: Re: Static Initializer
- Organization: Codesourcery LLC
- References: <28D2D04B2E962F4CA8EB97827626487236B571@fskrsm42.hill.af.mil>
Val,
We are using the Verdix Ada compiler and GNU C++ compiler to create an
executable. Each language wants to have it's "main" procedure run so that
it can control startup and initialize static and global variables. But
there can be only one main. I'm hoping that there is a global function that
I can call to initialize the C++ static and globals. I have checked the FAQ
and the manuals, but I haven't found an answer to my question.
How global initializers are run depends on your system. You could
experiment by compiling a simple main procedure and examining the assembly
so produced. For instance, on my i686-pc-linux-gnu system, there is
nothing special in main itself. If one examines the linker map file
(generated with -Wl,-Map,a.map) produced one finds things like .init
.fini and crtbegin.o, __init_array_start and other related symbols and
sections. You'll have to refer to your system's ABI and psABI documentation
to know what those mean and do.
Your question cannot be answered without more details of your system.
nathan
--
Nathan Sidwell :: http://www.codesourcery.com :: CodeSourcery LLC
nathan@codesourcery.com :: http://www.planetfall.pwp.blueyonder.co.uk