1 /*- 2 * Copyright (c) Sun Microsystems, Inc. 1998 All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the SMCC Technology 18 * Development Group at Sun Microsystems, Inc. 19 * 20 * 4. The name of the Sun Microsystems, Inc nor may not be used to endorse or 21 * promote products derived from this software without specific prior 22 * written permission. 23 * 24 * SUN MICROSYSTEMS DOES NOT CLAIM MERCHANTABILITY OF THIS SOFTWARE OR THE 25 * SUITABILITY OF THIS SOFTWARE FOR ANY PARTICULAR PURPOSE. The software is 26 * provided "as is" without express or implied warranty of any kind. 27 * 28 * These notices must be retained in any copies of any part of this software. 29 * 30 * $KAME: altq_rmclass_debug.h,v 1.3 2002/11/29 04:36:24 kjc Exp $ 31 */ 32 33 #ifndef _ALTQ_ALTQ_RMCLASS_DEBUG_H_ 34 #define _ALTQ_ALTQ_RMCLASS_DEBUG_H_ 35 36 /* 37 * Cbq debugging macros 38 */ 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 #ifdef CBQ_TRACE 45 #ifndef NCBQTRACE 46 #define NCBQTRACE (16 * 1024) 47 #endif 48 49 /* 50 * To view the trace output, using adb, type: 51 * adb -k /dev/ksyms /dev/mem <cr>, then type 52 * cbqtrace_count/D to get the count, then type 53 * cbqtrace_buffer,0tcount/Dp4C" "Xn 54 * This will dump the trace buffer from 0 to count. 55 */ 56 /* 57 * in ALTQ, "call cbqtrace_dump(N)" from DDB to display 20 events 58 * from Nth event in the circular buffer. 59 */ 60 61 struct cbqtrace { 62 int count; 63 int function; /* address of function */ 64 int trace_action; /* descriptive 4 characters */ 65 int object; /* object operated on */ 66 }; 67 68 extern struct cbqtrace cbqtrace_buffer[]; 69 extern struct cbqtrace *cbqtrace_ptr; 70 extern int cbqtrace_count; 71 72 #define CBQTRACEINIT() { \ 73 if (cbqtrace_ptr == NULL) \ 74 cbqtrace_ptr = cbqtrace_buffer; \ 75 else { \ 76 cbqtrace_ptr = cbqtrace_buffer; \ 77 bzero((void *)cbqtrace_ptr, sizeof(cbqtrace_buffer)); \ 78 cbqtrace_count = 0; \ 79 } \ 80 } 81 82 #define LOCK_TRACE() splimp() 83 #define UNLOCK_TRACE(x) splx(x) 84 85 #define CBQTRACE(func, act, obj) { \ 86 int __s = LOCK_TRACE(); \ 87 int *_p = &cbqtrace_ptr->count; \ 88 *_p++ = ++cbqtrace_count; \ 89 *_p++ = (int)(func); \ 90 *_p++ = (int)(act); \ 91 *_p++ = (int)(obj); \ 92 if ((struct cbqtrace *)(void *)_p >= &cbqtrace_buffer[NCBQTRACE])\ 93 cbqtrace_ptr = cbqtrace_buffer; \ 94 else \ 95 cbqtrace_ptr = (struct cbqtrace *)(void *)_p; \ 96 UNLOCK_TRACE(__s); \ 97 } 98 #else 99 100 /* If no tracing, define no-ops */ 101 #define CBQTRACEINIT() 102 #define CBQTRACE(a, b, c) 103 104 #endif /* !CBQ_TRACE */ 105 106 #ifdef __cplusplus 107 } 108 #endif 109 110 #endif /* _ALTQ_ALTQ_RMCLASS_DEBUG_H_ */ 111