From 6ca8284e7a522ce3cdc9fdd2e73795c753890634 Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Tue, 25 Sep 2018 01:22:22 +0200 Subject: Add missing unwind information to ld.so on powerpc32 (bug 23707) --- elf/tst-unwind-ctor-lib.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 elf/tst-unwind-ctor-lib.c (limited to 'elf/tst-unwind-ctor-lib.c') diff --git a/elf/tst-unwind-ctor-lib.c b/elf/tst-unwind-ctor-lib.c new file mode 100644 index 0000000000..ebcc2e7840 --- /dev/null +++ b/elf/tst-unwind-ctor-lib.c @@ -0,0 +1,42 @@ +/* Unit test for _Unwind_Backtrace in a shared object constructor. + Copyright (C) 2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include + +static _Unwind_Reason_Code +callback (struct _Unwind_Context *ctx, void *arg) +{ + return _URC_NO_REASON; +} + +static void +__attribute__ ((constructor)) +do_unwind (void) +{ + /* Arrange for this test to be killed if _Unwind_Backtrace runs into an + endless loop. We cannot use the test driver since the test needs to + run in a constructor. */ + alarm (20); + _Unwind_Backtrace (callback, 0); +} + +void +dummy (void) +{ +} -- cgit 1.4.1