43368e1d9a
In btrace_pt_readmem_callback, we read memory inside TRY/CATCH and return in case of an error return value. This corrupts the cleanup chain, which eventually results in a SEGV when doing or discarding cleanups later on. gdb/ * btrace.c (btrace_pt_readmem_callback): Do not return in TRY/CATCH. testsuite/ * gdb.btrace/dlopen.exp: New. * gdb.btrace/dlopen.c: New. * gdb.btrace/dlopen-dso.c: New.
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2015-2016 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <dlfcn.h>
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#include <assert.h>
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#include <stdlib.h>
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static int
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test (void)
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{
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void *dso;
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int (*fun) (void);
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int answer;
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dso = dlopen (DSO_NAME, RTLD_NOW | RTLD_GLOBAL);
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assert (dso != NULL);
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fun = (int (*) (void)) dlsym (dso, "answer");
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assert (fun != NULL);
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answer = fun ();
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dlclose (dso);
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return answer;
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}
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int
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main (void)
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{
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int answer;
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answer = test ();
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return answer;
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}
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