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Compiling with CC

Occasional Contributor

Compiling with CC

I am trying to compile on a HP-UX 10.20 with the CC compiler. I successfully compiled my program but failed with the link step. The error I got was unfound symbol $global(data) what is that? How do I get it resolved.

Thanks
3 REPLIES
Honored Contributor

Re: Compiling with CC

Could you post the entire error message? That might give us a hint here.
http://www.tresselt.eu
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Trusted Contributor

Re: Compiling with CC

Probably missing crt0.o. For example,

(fail)
$ ld myobj.o -lc
ld: Unsatisfied symbols:
$global$ (data)

(succeed)
$ ld myobj.o /opt/langtools/lib/crt0.o -lc

ld man page explains:

Code and data from shared libraries is never copied into an executable
program. The dynamic loader /usr/lib/dld.sl is invoked at startup
time by the startup file crt0.o if a program uses shared libraries.
Identical copies of crt0.o can be found in either /usr/ccs/lib/crt0.o
or /opt/langtools/lib/crt0.o.
Acclaimed Contributor

Re: Compiling with CC

>Probably missing crt0.o.

 

That's correct.  That's why you should always link with the compiler driver.