From fd7b231ff98578308d8f5fb76a25a369ce1074ae Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Thu, 23 Jun 2005 00:09:28 -0700 Subject: [PATCH] Kprobes/IA64: arch specific handling This is an IA64 arch specific handling of Kprobes Signed-off-by: Anil S Keshavamurthy Signed-off-by: Rusty Lynch Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-ia64/kprobes.h | 72 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 include/asm-ia64/kprobes.h (limited to 'include/asm-ia64') diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h new file mode 100644 index 00000000000..2a6f2a14889 --- /dev/null +++ b/include/asm-ia64/kprobes.h @@ -0,0 +1,72 @@ +#ifndef _ASM_KPROBES_H +#define _ASM_KPROBES_H +/* + * Kernel Probes (KProbes) + * include/asm-ia64/kprobes.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Copyright (C) IBM Corporation, 2002, 2004 + * Copyright (C) Intel Corporation, 2005 + * + * 2005-Apr Rusty Lynch and Anil S Keshavamurthy + * adapted from i386 + */ +#include +#include +#include + +#define BREAK_INST (long)(__IA64_BREAK_KPROBE << 6) + +typedef struct _bundle { + struct { + unsigned long long template : 5; + unsigned long long slot0 : 41; + unsigned long long slot1_p0 : 64-46; + } quad0; + struct { + unsigned long long slot1_p1 : 41 - (64-46); + unsigned long long slot2 : 41; + } quad1; +} __attribute__((__aligned__(16))) bundle_t; + +#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry + +typedef struct kprobe_opcode { + bundle_t bundle; +} kprobe_opcode_t; + +struct fnptr { + unsigned long ip; + unsigned long gp; +}; + +/* Architecture specific copy of original instruction*/ +struct arch_specific_insn { + /* copy of the original instruction */ + kprobe_opcode_t insn; +}; + +#ifdef CONFIG_KPROBES +extern int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data); +#else /* !CONFIG_KPROBES */ +static inline int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) +{ + return 0; +} +#endif +#endif /* _ASM_KPROBES_H */ -- cgit v1.2.3