Date: Tue, 16 Feb 1999 22:17:22 -0500 (EST) From: Chuck Robey <chuckr@mat.net> To: Greg Lehey <grog@lemis.com> Cc: Eivind Eklund <eivind@FreeBSD.ORG>, hackers@FreeBSD.ORG Subject: Re: gdb sucks - and I need to get around it. help? Message-ID: <Pine.BSF.4.05.9902162214340.327-100000@picnic.mat.net> In-Reply-To: <19990217132952.Z515@lemis.com>
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On Wed, 17 Feb 1999, Greg Lehey wrote: > There's stuff before main in C programs as well. I thought the stuff before main() in C programs was strictly dealing with shared loading (crt0.o stuff only), and only C++ programs had actual code (global constructors) to execute. I don't regard the loading stuff as part of a user's program, unless you're kernel hacking, because it is not in any way modified by any user source. Is this really incorrect? The entry point of > all C and C++ programs is start, which is in crt0.o or crt1.o. In > a.out files, it used to be directly after the header at 0x1020. I'm > not sure where the start address is in an ELF file. The clue should > be here somewhere, but I can't see it: ----------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@glue.umd.edu | communications topic, C programming, and Unix. 213 Lakeside Drive Apt T-1 | Greenbelt, MD 20770 | I run picnic (FreeBSD-current) (301) 220-2114 | and jaunt (Solaris7). ----------------------------+----------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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