e4ee12f813
Bug: http://b/78026329 Test: bionic unit tests Merged-In: I806f2bd193998dfe352372476104876edb27aebf Change-Id: I806f2bd193998dfe352372476104876edb27aebf
51 lines
2.2 KiB
C++
51 lines
2.2 KiB
C++
/*
|
|
* Copyright (C) 2019 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.
|
|
*/
|
|
|
|
// This shared object tests TPREL relocations in the dynamic linker. It's always
|
|
// part of static TLS.
|
|
|
|
// For accesses to these variables, the bfd and lld linkers generate a TPREL
|
|
// relocation with no symbol but a non-zero addend.
|
|
__attribute__((tls_model("initial-exec"))) static __thread int tls_var_1 = 3;
|
|
__attribute__((tls_model("initial-exec"))) static __thread int tls_var_2 = 7;
|
|
|
|
extern "C" int bump_static_tls_var_1() {
|
|
return ++tls_var_1;
|
|
}
|
|
|
|
extern "C" int bump_static_tls_var_2() {
|
|
return ++tls_var_2;
|
|
}
|
|
|
|
__attribute__((tls_model("initial-exec"), weak)) extern "C" __thread int missing_weak_tls;
|
|
|
|
extern "C" int* missing_weak_tls_addr() {
|
|
// The dynamic linker should resolve a TPREL relocation to this symbol to 0,
|
|
// which this function adds to the thread pointer.
|
|
return &missing_weak_tls;
|
|
}
|