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Re: init code
- From: David Daney <ddaney at avtrex dot com>
- To: dreese at vandals dot uidaho dot edu
- Cc: gcc-help at gcc dot gnu dot org
- Date: Wed, 11 Jun 2008 10:50:03 -0700
- Subject: Re: init code
- References: <BAY143-W18173EDAAE8DFB3D92680BF3B20@phx.gbl>
dreese@vandals.uidaho.edu wrote:
Does gcc currently posses the functionality to do the following?
I would like to have gcc compile in a function that initializes a global variable into the target programs memory space. I need this initialization function to be called before any code is executed from the target program. I need to have gcc do this for every program that it compiles with out being asked.
Does anyone have any ideas?
Look at: __attribute__((constructor))
http://gcc.gnu.org/onlinedocs/gcc-4.3.0/gcc/Function-Attributes.html
You would have to force the object containing the constructor to be linked to any program where this behavior is desired.
David Daney