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#include "config.h"
#include <sys/types.h>
#include <sys/ptrace.h>
#include <asm/ptrace.h>
#include "common.h"
#if (!defined(PTRACE_PEEKUSER) && defined(PTRACE_PEEKUSR))
# define PTRACE_PEEKUSER PTRACE_PEEKUSR
#endif
#if (!defined(PTRACE_POKEUSER) && defined(PTRACE_POKEUSR))
# define PTRACE_POKEUSER PTRACE_POKEUSR
#endif
void *
get_instruction_pointer(Process *proc) {
return (void *)ptrace(PTRACE_PEEKUSER, proc->pid, 4 * EIP, 0);
}
void
set_instruction_pointer(Process *proc, void *addr) {
ptrace(PTRACE_POKEUSER, proc->pid, 4 * EIP, (long)addr);
}
void *
get_stack_pointer(Process *proc) {
return (void *)ptrace(PTRACE_PEEKUSER, proc->pid, 4 * UESP, 0);
}
void *
get_return_addr(Process *proc, void *stack_pointer) {
return (void *)ptrace(PTRACE_PEEKTEXT, proc->pid, stack_pointer, 0);
}
void
set_return_addr(Process *proc, void *addr) {
ptrace(PTRACE_POKETEXT, proc->pid, proc->stack_pointer, (long)addr);
}
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