2 * Dynamic Binary Instrumentation Module based on KProbes
3 * modules/uprobe/arch/asm-arm/swap_uprobes.h
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 * Copyright (C) Samsung Electronics, 2006-2010
21 * 2008-2009 Alexey Gerenkov <a.gerenkov@samsung.com> User-Space
22 * Probes initial implementation; Support x86/ARM/MIPS for both user and kernel spaces.
23 * 2010 Ekaterina Gorelkina <e.gorelkina@samsung.com>: redesign module for separating core and arch parts
28 #ifndef _ARM_SWAP_UPROBES_H
29 #define _ARM_SWAP_UPROBES_H
36 struct uretprobe_instance;
39 struct arch_specific_tramp {
40 unsigned long tramp_arm[UPROBES_TRAMP_LEN];
41 unsigned long tramp_thumb[UPROBES_TRAMP_LEN];
46 static inline u32 swap_get_urp_float(struct pt_regs *regs)
51 static inline u64 swap_get_urp_double(struct pt_regs *regs)
54 return regs->ARM_r0 | (u64)regs->ARM_r1 << 32;
57 static inline void arch_ujprobe_return(void)
61 int arch_prepare_uprobe(struct uprobe *up);
63 int setjmp_upre_handler(struct kprobe *p, struct pt_regs *regs);
64 static inline int longjmp_break_uhandler(struct kprobe *p, struct pt_regs *regs)
69 void arch_opcode_analysis_uretprobe(struct uretprobe *rp);
70 void arch_prepare_uretprobe(struct uretprobe_instance *ri, struct pt_regs *regs);
71 int arch_disarm_urp_inst(struct uretprobe_instance *ri,
72 struct task_struct *task);
74 unsigned long arch_get_trampoline_addr(struct kprobe *p, struct pt_regs *regs);
75 void arch_set_orig_ret_addr(unsigned long orig_ret_addr, struct pt_regs *regs);
76 void arch_remove_uprobe(struct uprobe *up);
78 static inline unsigned long swap_get_uarg(struct pt_regs *regs, unsigned long n)
93 ptr = (u32 *)regs->ARM_sp + n - 4;
94 if (get_user(addr, ptr))
95 printk("failed to dereference a pointer, ptr=%p\n", ptr);
100 int swap_arch_init_uprobes(void);
101 void swap_arch_exit_uprobes(void);
103 #endif /* _ARM_SWAP_UPROBES_H */