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From: jenings@hpfcbig.SDE.HP.COM (Byron Jenings)
Newsgroups: comp.sys.hp
Subject: Re: #pragma _HP_SECONDARY_DEF
Message-ID: <7540070@hpfcbig.SDE.HP.COM>
Date: 18 May 91 07:38:17 GMT
References: <TML.91May15094429@nyyti.tik.vtt.fi>
Organization: HP SESD, Fort Collins, CO
Lines: 27


 Tor Lillqvist <tml@tik.vtt.fi> writes:
|How do you use the undocumented _HP_SECONDARY_DEF pragma?  (I found it
|with `strings /lib/ccom`.)  I suppose this is what causes the "sdef"
|entries as output by nm.

This is an example from when I wanted to wrap an extra layer around
brk and sbrk.  You'll need to look at the nm output in libc to see
when your replacement functions should have a name starting with one
or two underscores.

#ifdef _HPUX_SOURCE
#       pragma _HP_SECONDARY_DEF _sbrk sbrk
#       define sbrk _sbrk
#       pragma _HP_SECONDARY_DEF __brk brk
#       define brk __brk
#endif

char *sbrk(incr)
{
    ...
}

int brk(endds)
{
    ...
}