regs.c revision 5bfb061c4c7cfac6e1882a586cf36c849d95fcea 
1#if HAVE_CONFIG_H
2#include "config.h"
3#endif
4
5#include <sys/types.h>
6#include <sys/ptrace.h>
7#include <asm/ptrace.h>
8
9#if (!defined(PTRACE_PEEKUSER) && defined(PTRACE_PEEKUSR))
10# define PTRACE_PEEKUSER PTRACE_PEEKUSR
11#endif
12
13#if (!defined(PTRACE_POKEUSER) && defined(PTRACE_POKEUSR))
14# define PTRACE_POKEUSER PTRACE_POKEUSR
15#endif
16
17void *
18get_instruction_pointer(pid_t pid) {
19	return (void *)ptrace(PTRACE_PEEKUSER, pid, 4*PT_NIP, 0);
20}
21
22void
23set_instruction_pointer(pid_t pid, long addr) {
24	ptrace(PTRACE_POKEUSER, pid, 4*PT_NIP, addr);
25}
26
27void *
28get_stack_pointer(pid_t pid) {
29	return (void *)ptrace(PTRACE_PEEKUSER, pid, 4*PT_R1, 0);
30}
31
32void *
33get_return_addr(pid_t pid, void * stack_pointer) {
34	return (void *)ptrace(PTRACE_PEEKUSER, pid, 4*PT_LNK, 0);
35}
36