1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 *
21 * Copyright (c) 2002-2006 Neterion, Inc.
22 */
23
24#ifndef XGE_OS_PAL_H
25#define XGE_OS_PAL_H
26
27#include "xge-defs.h"
28
29__EXTERN_BEGIN_DECLS
30
31/*--------------------------- platform switch ------------------------------*/
32
33/* platform specific header */
34#include "xge_osdep.h"
35
36#if !defined(XGE_OS_PLATFORM_64BIT) && !defined(XGE_OS_PLATFORM_32BIT)
37#error "either 32bit or 64bit switch must be defined!"
38#endif
39
40#if !defined(XGE_OS_HOST_BIG_ENDIAN) && !defined(XGE_OS_HOST_LITTLE_ENDIAN)
41#error "either little endian or big endian switch must be defined!"
42#endif
43
44#if defined(XGE_OS_PLATFORM_64BIT)
45#define XGE_OS_MEMORY_DEADCODE_PAT	0x5a5a5a5a5a5a5a5a
46#else
47#define XGE_OS_MEMORY_DEADCODE_PAT	0x5a5a5a5a
48#endif
49
50#define XGE_OS_TRACE_MSGBUF_MAX		512
51typedef struct xge_os_tracebuf_t {
52	int		wrapped_once;     /* circular buffer been wrapped */
53	int		timestamp;        /* whether timestamps are enabled */
54	volatile int	offset;           /* offset within the tracebuf */
55	int		size;             /* total size of trace buffer */
56	char		msg[XGE_OS_TRACE_MSGBUF_MAX]; /* each individual buffer */
57	int		msgbuf_max;	  /* actual size of msg buffer */
58	char		*data;            /* pointer to data buffer */
59} xge_os_tracebuf_t;
60extern xge_os_tracebuf_t *g_xge_os_tracebuf;
61
62#ifdef XGE_TRACE_INTO_CIRCULAR_ARR
63extern xge_os_tracebuf_t *g_xge_os_tracebuf;
64extern char *dmesg_start;
65
66/* Calculate the size of the msg and copy it into the global buffer */
67#define __xge_trace(tb) { \
68	int msgsize = xge_os_strlen(tb->msg) + 2; \
69	int offset = tb->offset; \
70	if (msgsize != 2 && msgsize < tb->msgbuf_max) { \
71		int leftsize =  tb->size - offset; \
72		if ((msgsize + tb->msgbuf_max) > leftsize) { \
73			xge_os_memzero(tb->data + offset, leftsize); \
74			offset = 0; \
75			tb->wrapped_once = 1; \
76		} \
77		xge_os_memcpy(tb->data + offset, tb->msg, msgsize-1); \
78		*(tb->data + offset + msgsize-1) = '\n'; \
79		*(tb->data + offset + msgsize) = 0; \
80		offset += msgsize; \
81		tb->offset = offset; \
82		dmesg_start = tb->data + offset; \
83		*tb->msg = 0; \
84	} \
85}
86
87#define xge_os_vatrace(tb, fmt) { \
88	if (tb != NULL) { \
89		char *_p = tb->msg; \
90		if (tb->timestamp) { \
91			xge_os_timestamp(tb->msg); \
92			_p = tb->msg + xge_os_strlen(tb->msg); \
93		} \
94		xge_os_vasprintf(_p, fmt); \
95		__xge_trace(tb); \
96	} \
97}
98
99#ifdef __GNUC__
100#define xge_os_trace(tb, fmt...) { \
101	int msgsize = xge_os_strlen(tb->msg); \
102	if (tb != NULL) { \
103		if (tb->timestamp) { \
104			xge_os_timestamp(tb->msg); \
105		} \
106		xge_os_snprintf(tb->msg + msgsize, \
107		    (sizeof(tb->msg) - msgsize)), \
108		    fmt); \
109		__xge_trace(tb); \
110	} \
111}
112#endif /* __GNUC__ */
113
114#else
115#define xge_os_vatrace(tb, fmt)
116#ifdef __GNUC__
117#define xge_os_trace(tb, fmt...)
118#endif /* __GNUC__ */
119#endif
120
121__EXTERN_END_DECLS
122
123#endif /* XGE_OS_PAL_H */
124