| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| #include <sys/types.h> |
| #include <sys/ptrace.h> |
| |
| extern long __ptrace(int request, pid_t pid, void *addr, void *data); |
| |
| long ptrace(int request, pid_t pid, void * addr, void * data) |
| { |
| switch (request) { |
| case PTRACE_PEEKUSR: |
| case PTRACE_PEEKTEXT: |
| case PTRACE_PEEKDATA: |
| { |
| long word; |
| long ret; |
| |
| ret = __ptrace(request, pid, addr, &word); |
| if (ret == 0) { |
| return word; |
| } else { |
| // __ptrace will set errno for us |
| return -1; |
| } |
| } |
| |
| default: |
| return __ptrace(request, pid, addr, data); |
| } |
| } |
| |
| /* |
| * Hook for gdb to get notified when a thread is created |
| */ |
| #ifdef __i386__ |
| #define ATTRIBUTES __attribute__((noinline)) __attribute__((fastcall)) |
| #else |
| #define ATTRIBUTES __attribute__((noinline)) |
| #endif |
| |
| void ATTRIBUTES _thread_created_hook(pid_t thread_id) |
| { |
| } |