| The Android Open Source Project | 1dc9e47 | 2009-03-03 19:28:35 -0800 | [diff] [blame] | 1 | /*
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| 2 | * Copyright (C) 2008 The Android Open Source Project
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | * * Redistributions of source code must retain the above copyright
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| 9 | * notice, this list of conditions and the following disclaimer.
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| 10 | * * Redistributions in binary form must reproduce the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer in
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| 12 | * the documentation and/or other materials provided with the
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| 13 | * distribution.
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| 14 | *
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| 15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 16 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 17 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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| 18 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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| 19 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 20 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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| 21 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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| 22 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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| 23 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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| 24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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| 25 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 26 | * SUCH DAMAGE.
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| 27 | */
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| 28 | #include <sys/types.h>
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| 29 | #include <sys/ptrace.h>
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| 30 |
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| 31 | extern long __ptrace(int request, pid_t pid, void *addr, void *data);
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| 32 |
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| 33 | long ptrace(int request, pid_t pid, void * addr, void * data)
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| 34 | {
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| 35 | switch (request) {
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| 36 | case PTRACE_PEEKUSR:
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| 37 | case PTRACE_PEEKTEXT:
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| 38 | case PTRACE_PEEKDATA:
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| 39 | {
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| 40 | long word;
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| 41 | long ret;
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| 42 |
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| 43 | ret = __ptrace(request, pid, addr, &word);
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| 44 | if (ret == 0) {
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| 45 | return word;
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| 46 | } else {
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| 47 | // __ptrace will set errno for us
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| 48 | return -1;
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| 49 | }
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| 50 | }
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| 51 |
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| 52 | default:
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| 53 | return __ptrace(request, pid, addr, data);
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| 54 | }
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| 55 | }
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| 56 |
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| 57 | /*
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| 58 | * Hook for gdb to get notified when a thread is created
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| 59 | */
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| 60 | void _thread_created_hook(pid_t thread_id) __attribute__((noinline));
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| 61 | void _thread_created_hook(pid_t thread_id)
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| 62 | {
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| 63 | }
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