NAME    [Toc]    [Back]

     end, etext, edata - end boundaries of image segments

SYNOPSIS    [Toc]    [Back]

     extern end;
     extern etext;
     extern edata;

DESCRIPTION    [Toc]    [Back]

     The globals end, etext and edata are program segment end addresses.

     etext is the first address after the end of the text segment.

     edata is the first address after the end of the initialized data segment.

     end is the first address after the end of the data segment (BSS) when the
     program is loaded.  Use the sbrk(2) system call with zero as its argument
     to find the current end of the data segment.

SEE ALSO    [Toc]    [Back]

     sbrk(2), malloc(3), a.out(5)

HISTORY    [Toc]    [Back]

     An end manual page appeared in Version 6 AT&T UNIX.

BUGS    [Toc]    [Back]

     Traditionally, no variable existed that pointed to the start of the text
     segment because the text segment always started at address zero. Although
     it is no longer valid to make this assumption, no variable similar to the
     ones documented above exists to point to the start of the text segment.

BSD                            October 16, 1996                            BSD