NAME

sun3cvt − convert large Sun-2 executables to Sun-3 executables

SYNOPSIS

sun3cvt [ oldfile [ newfile ] ]

DESCRIPTION

sun3cvt converts an old Sun-2 program file (predating Sun release 3.0) into a Sun-3 executable file. 

The default oldfile is a.out.  The default newfile is sun3.out. 

sun3cvt will attempt to create a file of the same type (magic number).  However, for sharable-text files with less than 128kb of text, the new file will not be sharable (since Sun-3 data segments must begin on 128kb boundaries).  Also, most programs will have some text in the data segment as a consequence of the new larger Sun-3 page and segment sizes. 

execve(2) will execute an old Sun-2 program file, but it will never make the program’s text sharable.  Old pure-text programs with text segments larger than 128kb can be made sharable on machines running release 3.0 or subsequent releases by using sun3cvt. 

Sun Release 3.2  —  Last change: 26 March 1986