| /* |
| * 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; |
| } |