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