diff options
author | jake <jake@FreeBSD.org> | 2001-09-03 22:32:49 +0000 |
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committer | jake <jake@FreeBSD.org> | 2001-09-03 22:32:49 +0000 |
commit | 9f19dd2781d6c3919d7258884f3f852e070fc43f (patch) | |
tree | 7a8bb05637d6b024182345331d458dcddf0dc60e /sys/sparc64 | |
parent | 908b8f329b0994f109195f850833e351139cdaa4 (diff) | |
download | FreeBSD-src-9f19dd2781d6c3919d7258884f3f852e070fc43f.zip FreeBSD-src-9f19dd2781d6c3919d7258884f3f852e070fc43f.tar.gz |
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.
Diffstat (limited to 'sys/sparc64')
-rw-r--r-- | sys/sparc64/include/ktr.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/sys/sparc64/include/ktr.h b/sys/sparc64/include/ktr.h new file mode 100644 index 0000000..4b8e7df --- /dev/null +++ b/sys/sparc64/include/ktr.h @@ -0,0 +1,87 @@ +/*- + * 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_ + +#ifdef LOCORE + +#define AND(var, mask, r1, r2, r3, l1) \ + setx var, r2, r1 ; \ + setx mask, r3, r2 ; \ + lduw [r1], r3 ; \ + and r2, r3, r1 + +#define TEST(var, mask, r1, r2, r3, l1) \ + AND(var, mask, r1, r2, r3, l1) ; \ + brz r1, l1 ## f ; \ + nop + +/* + * XXX doesn't do timestamp or ktr_cpu. + */ +#define ATR(desc, r1, r2, r3, l1, l2) \ + .sect .rodata ; \ +l1 ## : .asciz desc ; \ + .previous ; \ + set ktr_idx, r1 ; \ + lduw [r1], r2 ; \ +l2 ## : add r2, 1, r3 ; \ + casa [r1] ASI_N, r2, r3 ; \ + cmp r2, r3 ; \ + bne %icc, l2 ## b ; \ + mov r3, r2 ; \ + set ktr_buf, r1 ; \ + mulx r2, KTR_SIZEOF, r2 ; \ + add r1, r2, r1 ; \ + set l1 ## b, r2 ; \ + stx r2, [r1 + KTR_DESC] + +#define CATR(mask, desc, r1, r2, r3, l1, l2, l3) \ + TEST(ktr_mask, mask, r1, r2, r3, l3) ; \ + ATR(desc, r1, r2, r3, l1, l2) + +/* + * XXX crude conditional breakpoint and sir + */ +#define CBPT(mask, r1, r2, r3, l1) \ + TEST(ktr_mask, mask, r1, r2, r3, l1) ; \ + DEBUGGER() ; \ +l1 ## : + +#define CSIR(mask, r1, r2, r3, l1) \ + TEST(ktr_mask, mask, r1, r2, r3, l1) ; \ + sir 42 ; \ +l1 ## : + +#endif /* LOCORE */ + +#endif /* !_MACHINE_KTR_H_ */ |