15 Jan
2001
15 Jan
'01
2:53 p.m.
Hey.
I'm playing around with a /53 running 2.11BSD, trying to port some
software, and I have a (probably stupid) problem: environ.
When I write a simple program like
#include <stdio.h>
extern char **environ;
void main(argc, argv)
int argc;
char **argv;
{
printf("Hello world!");
environ=environ;
}
and compile & link it using cc ("cc -o test test.c"), things go fine,
however if I link things manually ("cc -c test.c ; ld -o test test.o -lc")
I get an unresolved _environ. By some experimentation, I noticed that
including /lib/crt0.o in the linker helps to some extent - however,
the binary generated by cc works like a charm, while the manually
linked version quits with a bus error. Any ideas?
--
Martijn van Buul - Pino(a)dohd.org - http://www.stack.nl/~martijnb/
Geek code: G-- - Visit OuterSpace: mud.stack.nl 3333
Kees J. Bot: The sum of CPU power and user brain power is a constant.
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From "Steven M. Schultz"
<sms(a)moe.2bsd.com> Tue Jan 16 08:15:45 2001
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Date: Mon, 15 Jan 2001 14:15:45 -0800 (PST)
From: "Steven M. Schultz" <sms(a)moe.2bsd.com>
Message-Id: <200101152215.f0FMFjJ26746(a)moe.2bsd.com>
To: pups(a)minnie.cs.adfa.edu.au
Subject: Re: [pups] Stupid question..
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Hi -
From: Martijn van Buul <pino(a)dohd.org>
however if I link things manually ("cc -c test.c ; ld -o test test.o -lc")
I get an unresolved _environ. By some experimentation, I noticed that
including /lib/crt0.o in the linker helps to some extent - however,
the binary generated by cc works like a charm, while the manually
linked version quits with a bus error. Any ideas?
Try placing /lib/crt0.o before the test.o:
ld -o test /lib/crt0.o test.o -lc
on another note it's usually not a good idea to call a program 'test'
because when you are least expecting it you will end up running
/bin/test and wonder what is wrong.
Steven