source: trunk/minix/lib/other/environ.c@ 20

Last change on this file since 20 was 9, checked in by Mattia Monga, 14 years ago

Minix 3.1.2a

File size: 814 bytes
Line 
1/*
2 * environ.c - define the variable environ
3 */
4/* $Header: /cvsup/minix/src/lib/other/environ.c,v 1.1.1.1 2005/04/21 14:56:26 beng Exp $ */
5/*
6 * This file defines the variable environ and initializes it with a magic
7 * value. The C run-time start-off routine tests whether the variable
8 * environ is initialized with this value. If it is not, it is assumed
9 * that it is defined by the user. Only two bytes are tested, since we
10 * don't know the endian-ness and alignment restrictions of the machine.
11 * This means that the low-order two-bytes should be equal to the
12 * high-order two-bytes on machines with four-byte pointers. In fact, all
13 * the bytes in the pointer are the same, just in case.
14 */
15
16#if _EM_PSIZE==2
17char **environ = (char **) 0x5353;
18#else
19char **environ = (char **) 0x53535353;
20#endif
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