x86: kprobes code for x86 unification

This patch unifies kprobes code.

- Unify kprobes_*.h to kprobes.h
- Unify kprobes_*.c to kprobes.c
  (Differences are separated by ifdefs)
 - Most differences are related to REX prefix and rip relatives.
 - Two inline assembly code are different.
 - One difference in kprobe_handlre()
 - One fixup exception code is different, but it will be unified
   if mm/extable_*.c are unified.
- Merge history logs into arch/x86/kernel/kprobes.c.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 102 deletions

diff --git a/include/asm-x86/kprobes_32.h b/include/asm-x86/kprobes_32.h
deleted file mode 100644
index 94dff09b2ebe..000000000000
--- a/include/asm-x86/kprobes_32.h
+++ /dev/null
@@ -1,102 +0,0 @@
-#ifndef _ASM_KPROBES_H
-#define _ASM_KPROBES_H
-/*
- *  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-Oct     Prasanna S Panchamukhi <prasanna@in.ibm.com> and Jim Keniston
- *              kenistoj@us.ibm.com adopted from i386.
- */
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/percpu.h>
-
-#define  __ARCH_WANT_KPROBES_INSN_SLOT
-
-struct pt_regs;
-struct kprobe;
-
-typedef u8 kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION  0xcc
-#define RELATIVEJUMP_INSTRUCTION 0xe9
-#define MAX_INSN_SIZE 16
-#define MAX_STACK_SIZE 64
-#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
-        (((unsigned long)current_thread_info()) + THREAD_SIZE \
-         - (unsigned long)(ADDR))) \
-        ? (MAX_STACK_SIZE) \
-        : (((unsigned long)current_thread_info()) + THREAD_SIZE \
-           - (unsigned long)(ADDR)))
-
-#define ARCH_SUPPORTS_KRETPROBES
-#define flush_insn_slot(p)      do { } while (0)
-
-extern const int kretprobe_blacklist_size;
-
-void arch_remove_kprobe(struct kprobe *p);
-void kretprobe_trampoline(void);
-
-/* Architecture specific copy of original instruction*/
-struct arch_specific_insn {
-        /* copy of the original instruction */
-        kprobe_opcode_t *insn;
-        /*
-         * boostable = -1: This instruction type is not boostable.
-         * boostable = 0: This instruction type is boostable.
-         * boostable = 1: This instruction has been boosted: we have
-         * added a relative jump after the instruction copy in insn,
-         * so no single-step and fixup are needed (unless there's
-         * a post_handler or break_handler).
-         */
-        int boostable;
-};
-
-struct prev_kprobe {
-        struct kprobe *kp;
-        unsigned long status;
-        unsigned long old_flags;
-        unsigned long saved_flags;
-};
-
-/* per-cpu kprobe control block */
-struct kprobe_ctlblk {
-        unsigned long kprobe_status;
-        unsigned long kprobe_old_flags;
-        unsigned long kprobe_saved_flags;
-        unsigned long *jprobe_saved_sp;
-        struct pt_regs jprobe_saved_regs;
-        kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
-        struct prev_kprobe prev_kprobe;
-};
-
-/* trap3/1 are intr gates for kprobes.  So, restore the status of IF,
- * if necessary, before executing the original int3/1 (trap) handler.
- */
-static inline void restore_interrupts(struct pt_regs *regs)
-{
-        if (regs->flags & IF_MASK)
-                local_irq_enable();
-}
-
-extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
-extern int kprobe_exceptions_notify(struct notifier_block *self,
-                                    unsigned long val, void *data);
-#endif                          /* _ASM_KPROBES_H */