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freebsd-dev/sys/sparc64/include/ktr.h

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Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
/*-
* Copyright (c) 1996 Berkeley Software Design, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Berkeley Software Design Inc's name may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN INC ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN INC BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from BSDI $Id: ktr.h,v 1.10.2.7 2000/03/16 21:44:42 cp Exp $
* $FreeBSD$
*/
#ifndef _MACHINE_KTR_H_
#define _MACHINE_KTR_H_
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
#include <machine/upa.h>
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
#ifndef LOCORE
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
#define KTR_CPU UPA_CR_GET_MID(ldxa(0, ASI_UPA_CONFIG_REG))
#else
#define AND(var, mask, r1, r2) \
SET(var, r2, r1) ; \
lduw [r1], r2 ; \
and r2, mask, r1
#define TEST(var, mask, r1, r2, l1) \
AND(var, mask, r1, r2) ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
brz r1, l1 ## f ; \
nop
/*
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
* XXX could really use another register...
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
*/
#define ATR(desc, r1, r2, r3, l1, l2) \
.sect .rodata ; \
Two tokens that don't together form a vaid preprocssor token cannot be pasted together using ANSI-C token concatinatation. GCC's cpp, at least, produces the desired result w/o using "##".
2003-04-26 17:00:10 +00:00
l1: .asciz desc ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
.previous ; \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
SET(ktr_idx, r2, r1) ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
lduw [r1], r2 ; \
Two tokens that don't together form a vaid preprocssor token cannot be pasted together using ANSI-C token concatinatation. GCC's cpp, at least, produces the desired result w/o using "##".
2003-04-26 17:00:10 +00:00
l2: add r2, 1, r3 ; \
Don't overflow the ktr buffer <gulp>.
2001-09-30 18:42:56 +00:00
set KTR_ENTRIES - 1, r1 ; \
and r3, r1, r3 ; \
set ktr_idx, r1 ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
casa [r1] ASI_N, r2, r3 ; \
cmp r2, r3 ; \
bne %icc, l2 ## b ; \
mov r3, r2 ; \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
SET(ktr_buf, r3, r1) ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
mulx r2, KTR_SIZEOF, r2 ; \
add r1, r2, r1 ; \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
rd %tick, r2 ; \
stx r2, [r1 + KTR_TIMESTAMP] ; \
UPA_GET_MID(r2) ; \
stw r2, [r1 + KTR_CPU] ; \
stw %g0, [r1 + KTR_LINE] ; \
stx %g0, [r1 + KTR_FILE] ; \
SET(l1 ## b, r3, r2) ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
stx r2, [r1 + KTR_DESC]
#define CATR(mask, desc, r1, r2, r3, l1, l2, l3) \
Provide an implementation of KTR_CPU that doesn't use pcpu, so we don't crash and burn if its not setup yet. Add timestamp, cpu, and (fake) file and line recording to the asm version of CTR.
2002-04-06 08:40:59 +00:00
set mask, r1 ; \
TEST(ktr_mask, r1, r2, r2, l3) ; \
UPA_GET_MID(r1) ; \
mov 1, r2 ; \
sllx r2, r1, r1 ; \
TEST(ktr_cpumask, r1, r2, r3, l3) ; \
Add simple macros for tracing in assembler files. There are quite a few places where we cannot even call a function, and these have proven to be very useful debugging tools for such situations.
2001-09-03 22:32:49 +00:00
ATR(desc, r1, r2, r3, l1, l2)
#endif /* LOCORE */
#endif /* !_MACHINE_KTR_H_ */
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