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Diffstat (limited to 'include/asm-powerpc/kprobes.h')
| -rw-r--r-- | include/asm-powerpc/kprobes.h | 118 |
1 files changed, 0 insertions, 118 deletions
diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h deleted file mode 100644 index d0e7701..0000000 --- a/include/asm-powerpc/kprobes.h +++ /dev/null @@ -1,118 +0,0 @@ -#ifndef _ASM_POWERPC_KPROBES_H -#define _ASM_POWERPC_KPROBES_H -#ifdef __KERNEL__ -/* - * Kernel Probes (KProbes) - * - * 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 - * - * 2002-Oct Created by Vamsi Krishna S <vamsi_krishna@in.ibm.com> Kernel - * Probes initial implementation ( includes suggestions from - * Rusty Russell). - * 2004-Nov Modified for PPC64 by Ananth N Mavinakayanahalli - * <ananth@in.ibm.com> - */ -#include <linux/types.h> -#include <linux/ptrace.h> -#include <linux/percpu.h> - -#define __ARCH_WANT_KPROBES_INSN_SLOT - -struct pt_regs; -struct kprobe; - -typedef unsigned int kprobe_opcode_t; -#define BREAKPOINT_INSTRUCTION 0x7fe00008 /* trap */ -#define MAX_INSN_SIZE 1 - -#define IS_TW(instr) (((instr) & 0xfc0007fe) == 0x7c000008) -#define IS_TD(instr) (((instr) & 0xfc0007fe) == 0x7c000088) -#define IS_TDI(instr) (((instr) & 0xfc000000) == 0x08000000) -#define IS_TWI(instr) (((instr) & 0xfc000000) == 0x0c000000) - -#ifdef CONFIG_PPC64 -/* - * 64bit powerpc uses function descriptors. - * Handle cases where: - * - User passes a <.symbol> or <module:.symbol> - * - User passes a <symbol> or <module:symbol> - * - User passes a non-existant symbol, kallsyms_lookup_name - * returns 0. Don't deref the NULL pointer in that case - */ -#define kprobe_lookup_name(name, addr) \ -{ \ - addr = (kprobe_opcode_t *)kallsyms_lookup_name(name); \ - if (addr) { \ - char *colon; \ - if ((colon = strchr(name, ':')) != NULL) { \ - colon++; \ - if (*colon != '\0' && *colon != '.') \ - addr = *(kprobe_opcode_t **)addr; \ - } else if (name[0] != '.') \ - addr = *(kprobe_opcode_t **)addr; \ - } else { \ - char dot_name[KSYM_NAME_LEN]; \ - dot_name[0] = '.'; \ - dot_name[1] = '\0'; \ - strncat(dot_name, name, KSYM_NAME_LEN - 2); \ - addr = (kprobe_opcode_t *)kallsyms_lookup_name(dot_name); \ - } \ -} - -#define is_trap(instr) (IS_TW(instr) || IS_TD(instr) || \ - IS_TWI(instr) || IS_TDI(instr)) -#else -/* Use stock kprobe_lookup_name since ppc32 doesn't use function descriptors */ -#define is_trap(instr) (IS_TW(instr) || IS_TWI(instr)) -#endif - -#define flush_insn_slot(p) do { } while (0) -#define kretprobe_blacklist_size 0 - -void kretprobe_trampoline(void); -extern void arch_remove_kprobe(struct kprobe *p); - -/* Architecture specific copy of original instruction */ -struct arch_specific_insn { - /* copy of original instruction */ - kprobe_opcode_t *insn; - /* - * Set in kprobes code, initially to 0. If the instruction can be - * eumulated, this is set to 1, if not, to -1. - */ - int boostable; -}; - -struct prev_kprobe { - struct kprobe *kp; - unsigned long status; - unsigned long saved_msr; -}; - -/* per-cpu kprobe control block */ -struct kprobe_ctlblk { - unsigned long kprobe_status; - unsigned long kprobe_saved_msr; - struct pt_regs jprobe_saved_regs; - struct prev_kprobe prev_kprobe; -}; - -extern int kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data); -extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr); -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_KPROBES_H */ |