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authorStephen Rothwell <sfr@canb.auug.org.au>2008-08-01 15:20:30 +1000
committerPaul Mackerras <paulus@samba.org>2008-08-04 12:02:00 +1000
commitb8b572e1015f81b4e748417be2629dfe51ab99f9 (patch)
tree7df58667d5ed71d6c8f8f4ce40ca16b6fb776d0b /include/asm-powerpc/kprobes.h
parent2b12a4c524812fb3f6ee590a02e65b95c8c32229 (diff)
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powerpc: Move include files to arch/powerpc/include/asm
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/kprobes.h')
-rw-r--r--include/asm-powerpc/kprobes.h118
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 */
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