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glibc/misc/ptrace.c
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/* Copyright (C) 1991-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Lesser General Public | |
License as published by the Free Software Foundation; either | |
version 2.1 of the License, or (at your option) any later version. | |
The GNU C Library 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 | |
Lesser General Public License for more details. | |
You should have received a copy of the GNU Lesser General Public | |
License along with the GNU C Library; if not, see | |
<http://www.gnu.org/licenses/>. */ | |
#include <errno.h> | |
#include <sys/ptrace.h> | |
#include <sys/types.h> | |
#include <stdarg.h> | |
#include <libc-internal.h> | |
/* Perform process tracing functions. REQUEST is one of the values | |
in <sys/ptrace.h>, and determines the action to be taken. | |
For all requests except PTRACE_TRACEME, PID specifies the process to be | |
traced. | |
PID and the other arguments described above for the various requests should | |
appear (those that are used for the particular request) as: | |
pid_t PID, void *ADDR, int DATA, void *ADDR2 | |
after PID. */ | |
int | |
ptrace (enum __ptrace_request request, ...) | |
{ | |
pid_t pid; | |
void *addr; | |
void *addr2; | |
int data; | |
va_list ap; | |
switch (request) | |
{ | |
case PTRACE_TRACEME: | |
case PTRACE_CONT: | |
case PTRACE_KILL: | |
case PTRACE_SINGLESTEP: | |
case PTRACE_ATTACH: | |
case PTRACE_DETACH: | |
break; | |
case PTRACE_PEEKTEXT: | |
case PTRACE_PEEKDATA: | |
case PTRACE_PEEKUSER: | |
case PTRACE_GETREGS: | |
case PTRACE_SETREGS: | |
#ifdef PTRACE_GETFPREGS | |
case PTRACE_GETFPGEGS: | |
#endif | |
case PTRACE_SETFPREGS: | |
case PTRACE_GETFPAREGS: | |
case PTRACE_SETFPAREGS: | |
va_start (ap, request); | |
pid = va_arg (ap, pid_t); | |
addr = va_arg (ap, void *); | |
va_end (ap); | |
ignore_value (pid); | |
ignore_value (addr); | |
break; | |
case PTRACE_POKETEXT: | |
case PTRACE_POKEDATA: | |
case PTRACE_POKEUSER: | |
va_start (ap, request); | |
pid = va_arg (ap, pid_t); | |
addr = va_arg (ap, void *); | |
data = va_arg (ap, int); | |
va_end (ap); | |
ignore_value (pid); | |
ignore_value (addr); | |
ignore_value (data); | |
break; | |
case PTRACE_READDATA: | |
case PTRACE_WRITEDATA: | |
case PTRACE_READTEXT: | |
case PTRACE_WRITETEXT: | |
va_start (ap, request); | |
pid = va_arg (ap, pid_t); | |
addr = va_arg (ap, void *); | |
data = va_arg (ap, int); | |
addr2 = va_arg (ap, void *); | |
va_end (ap); | |
ignore_value (pid); | |
ignore_value (addr); | |
ignore_value (data); | |
ignore_value (addr2); | |
break; | |
default: | |
__set_errno (EINVAL); | |
return -1; | |
} | |
__set_errno (ENOSYS); | |
return -1; | |
} | |
stub_warning (ptrace) |