1a476b6d68
In the record-btrace target, while replaying, we can only provide the PC register. The btrace state is stored in the thread_info. So, when trying to determine whether we are currently replaying, GDB calls find_thread_ptid() to obtain the thread_info. It also asserts that we do have a thread_info. For new threads, libthread-db may fetch registers before the thread is known to GDB. In this case, find_thread_ptid() returns nullptr and the assertion fails. Forward the fetch_registers request to the target beneath in that case. gdb/ChangeLog: 2020-03-19 Markus Metzger <markus.t.metzger@intel.com> * record-btrace.c (record_btrace_target::fetch_registers): Forward request if we do not have a thread_info. gdb/testsuite/ChangeLog: 2020-03-19 Markus Metzger <markus.t.metzger@intel.com> * gdb.btrace/enable-new-thread.c: New test. * gdb.btrace/enable-new-thread.exp: New file.
37 lines
971 B
C
37 lines
971 B
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2020 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 <pthread.h>
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#include <unistd.h>
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static void *
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test (void *arg)
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{
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return arg; /* bp.1 */
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}
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int
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main (void)
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{
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pthread_t th;
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pthread_create (&th, NULL, test, NULL);
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pthread_join (th, NULL);
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return 0;
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}
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