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Add breakpoint definitions for DTrace

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This commit is contained in:
ozaki-r 2014-03-15 05:54:20 +00:00
parent 092f718fed
commit b544726383
1 changed files with 9 additions and 1 deletions
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10
sys/arch/arm/include/trap.h
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@ -1,4 +1,4 @@
/* $NetBSD: trap.h,v 1.8 2008/01/19 13:11:09 chris Exp $ */
/* $NetBSD: trap.h,v 1.9 2014/03/15 05:54:20 ozaki-r Exp $ */
/*
* Copyright (c) 1995 Mark Brinicombe.
@ -62,6 +62,14 @@
#define GDB_THUMB_BREAKPOINT 0xdefe /* Thumb in GDB */
#define KERNEL_BREAKPOINT 0xe7ffffff /* Used by DDB */
/*
* DTrace uses 0xe7fffef0 to 0xe7fffeff as breakpoints.
* The first byte is used to encode a cond value.
*/
#define DTRACE_BREAKPOINT 0xe7fffef0
#define DTRACE_BREAKPOINT_MASK 0xfffffff0
#define DTRACE_IS_BREAKPOINT(insn) ((insn & DTRACE_BREAKPOINT_MASK) == DTRACE_BREAKPOINT)
#define KBPT_ASM ".word 0xe7ffdefe"
#define USER_BREAKPOINT GDB_BREAKPOINT