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/*
* Copyright (C) 2020 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.
*/
#pragma once
/**
* @file thread_properties.h
* @brief Thread properties API.
*
* https://sourceware.org/glibc/wiki/ThreadPropertiesAPI
* API for querying various properties of the current thread, used mostly by
* the sanitizers.
*
* Available since API level 31.
*
*/
#include <sys/cdefs.h>
#include <unistd.h>
__BEGIN_DECLS
/**
* Gets the bounds of static TLS for the current thread.
*
* Available since API level 31.
*/
void __libc_get_static_tls_bounds(void** __static_tls_begin,
void** __static_tls_end) __INTRODUCED_IN(31);
/**
* Registers callback to be called right before the thread is dead.
* The callbacks are chained, they are called in the order opposite to the order
* they were registered.
*
* The callbacks must be registered only before any threads were created.
* No signals may arrive during the calls to these callbacks.
* The callbacks may not access the thread's dynamic TLS because they will have
* been freed by the time these callbacks are invoked.
*
* Available since API level 31.
*/
void __libc_register_thread_exit_callback(void (*__cb)(void)) __INTRODUCED_IN(31);
/**
* Iterates over all dynamic TLS chunks for the given thread.
* The thread should have been suspended. It is undefined-behaviour if there is concurrent
* modification of the target thread's dynamic TLS.
*
* Available since API level 31.
*/
void __libc_iterate_dynamic_tls(pid_t __tid,
void (*__cb)(void* __dynamic_tls_begin,
void* __dynamic_tls_end,
size_t __dso_id,
void* __arg),
void* __arg) __INTRODUCED_IN(31);
/**
* Register on_creation and on_destruction callbacks, which will be called after a dynamic
* TLS creation and before a dynamic TLS destruction, respectively.
*
* Available since API level 31.
*/
void __libc_register_dynamic_tls_listeners(
void (*__on_creation)(void* __dynamic_tls_begin,
void* __dynamic_tls_end),
void (*__on_destruction)(void* __dynamic_tls_begin,
void* __dynamic_tls_end)) __INTRODUCED_IN(31);
__END_DECLS
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