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Defined the packetbuf buffer so that it is always aligned on a 16-bit boundary.

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This commit is contained in:
adamdunkels 2009-03-23 19:37:45 +00:00
parent d0b969ec5a
commit f4b8680174
1 changed files with 8 additions and 2 deletions
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10
core/net/rime/packetbuf.c
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@ -33,7 +33,7 @@
* *
* This file is part of the Contiki operating system. * This file is part of the Contiki operating system.
* *
* $Id: packetbuf.c,v 1.1 2009/03/12 23:04:52 adamdunkels Exp $ * $Id: packetbuf.c,v 1.2 2009/03/23 19:37:45 adamdunkels Exp $
*/ */
/** /**
@ -88,7 +88,13 @@ const char *packetbuf_attr_strings[] =
static uint16_t buflen, bufptr; static uint16_t buflen, bufptr;
static uint8_t hdrptr; static uint8_t hdrptr;
static uint8_t packetbuf[PACKETBUF_SIZE + PACKETBUF_HDR_SIZE];
/* The declarations below ensure that the packet buffer is aligned on
an even 16-bit boundary. On some platforms (most notably the
msp430), having apotentially misaligned packet buffer may lead to
problems when accessing 16-bit values. */
static uint16_t packetbuf_aligned[(PACKETBUF_SIZE + PACKETBUF_HDR_SIZE) / 2 + 1];
static uint8_t* packetbuf = packetbuf_aligned;
static uint8_t *packetbufptr; static uint8_t *packetbufptr;