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From: siegel@hc.DSPO.GOV (Josh Siegel)
Newsgroups: comp.bugs.4bsd
Subject: Bug in Sun compiler...
Message-ID: <11636@hc.DSPO.GOV>
Date: Tue, 24-Nov-87 18:38:28 EST
Article-I.D.: hc.11636
Posted: Tue Nov 24 18:38:28 1987
Date-Received: Sat, 28-Nov-87 05:28:21 EST
Organization: Los Alamos National Laboratory
Lines: 33


struct {
        int a,b,c;
        } 
main()
{}


The above program causes Suns compiler to generate code that 
has a Segmentation fault upon exiting.

The reason being that Sun don't check to see if you specificly 
returned a structure.  The register d0 is null and it offsets 
through it.

_main:
|#PROLOGUE# 0
        link    a6,#0
|#PROLOGUE# 1
        movl    d0,a0
        movl    #L14,a1
        movl    a0@+,a1@+
        movl    a0@+,a1@+
        movl    a0@+,a1@+
        movl    #L14,d0
        unlk    a6
        rts

Vax and GNU do this correctly...

			--Josh Siegel
-- 
Josh Siegel		(siegel@hc.dspo.gov)
  Friends don't let Friends eat Cherng
ppn an a