forked from mirrors/linux
8c2c3f2d40
Remove arch dependent setjump/longjump functions and unused fields in kprobe_ctlblk for jprobes from arch/mips. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: James Hogan <jhogan@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-arch@vger.kernel.org Cc: linux-mips@linux-mips.org Link: https://lore.kernel.org/lkml/152942451058.15209.3459785416221980965.stgit@devbox Signed-off-by: Ingo Molnar <mingo@kernel.org>
89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
/*
|
|
* Kernel Probes (KProbes)
|
|
* include/asm-mips/kprobes.h
|
|
*
|
|
* Copyright 2006 Sony Corp.
|
|
* Copyright 2010 Cavium Networks
|
|
*
|
|
* 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; version 2 of the License.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#ifndef _ASM_KPROBES_H
|
|
#define _ASM_KPROBES_H
|
|
|
|
#include <asm-generic/kprobes.h>
|
|
|
|
#ifdef CONFIG_KPROBES
|
|
#include <linux/ptrace.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/kdebug.h>
|
|
#include <asm/inst.h>
|
|
|
|
#define __ARCH_WANT_KPROBES_INSN_SLOT
|
|
|
|
struct kprobe;
|
|
struct pt_regs;
|
|
|
|
typedef union mips_instruction kprobe_opcode_t;
|
|
|
|
#define MAX_INSN_SIZE 2
|
|
|
|
#define flush_insn_slot(p) \
|
|
do { \
|
|
if (p->addr) \
|
|
flush_icache_range((unsigned long)p->addr, \
|
|
(unsigned long)p->addr + \
|
|
(MAX_INSN_SIZE * sizeof(kprobe_opcode_t))); \
|
|
} while (0)
|
|
|
|
|
|
#define kretprobe_blacklist_size 0
|
|
|
|
void arch_remove_kprobe(struct kprobe *p);
|
|
|
|
/* Architecture specific copy of original instruction*/
|
|
struct arch_specific_insn {
|
|
/* copy of the original instruction */
|
|
kprobe_opcode_t *insn;
|
|
};
|
|
|
|
struct prev_kprobe {
|
|
struct kprobe *kp;
|
|
unsigned long status;
|
|
unsigned long old_SR;
|
|
unsigned long saved_SR;
|
|
unsigned long saved_epc;
|
|
};
|
|
|
|
#define SKIP_DELAYSLOT 0x0001
|
|
|
|
/* per-cpu kprobe control block */
|
|
struct kprobe_ctlblk {
|
|
unsigned long kprobe_status;
|
|
unsigned long kprobe_old_SR;
|
|
unsigned long kprobe_saved_SR;
|
|
unsigned long kprobe_saved_epc;
|
|
/* Per-thread fields, used while emulating branches */
|
|
unsigned long flags;
|
|
unsigned long target_epc;
|
|
struct prev_kprobe prev_kprobe;
|
|
};
|
|
|
|
extern int kprobe_exceptions_notify(struct notifier_block *self,
|
|
unsigned long val, void *data);
|
|
|
|
#endif /* CONFIG_KPROBES */
|
|
#endif /* _ASM_KPROBES_H */
|