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531c82a1c7
The register_test_foreach_arch is used to instantiate a given selftest
for all architectures supported by GDB. It is used in many _initialize_*
functions (under initialize_all_files, called by gdb_init).
Because the call is done during GDB's initialization, and because there
is no guaranty about the order in which all the _initialize_* functions
are executed, when register_test_foreach_arch is called, GDB is not
fully initialized. Specifically, when a particular initialize function
is executed, only the architectures registered at that point are listed
by gdbarch_printable_names.
As a consequence, the list of selftest effectively executed depends on
the order the _initialize_* functions are called. This can be observed
with the following:
$ ./gdb/gdb \
-data-directory ./gdb/data-directory \
-quiet -batch -ex "maint selftest" 2>&1 \
| grep -E "Ran [0-9]+ unit tests"
Ran 145 unit tests, 0 failed
$ GDB_REVERSE_INIT_FUNCTIONS=1 ./gdb/gdb \
-data-directory ./gdb/data-directory \
-quiet -batch -ex "maint selftest" 2>&1 \
| grep -E "Ran [0-9]+ unit tests"
Ran 82 unit tests, 0 failed
To fix this, make register_test_foreach_arch register a lazy selftest
generator. This way when the test generator is eventually executed, all
architectures are registered and we do not have a dependency on the
order the initialize functions are executed in.
Tested on x86_64-linux
Change-Id: I88eefebf7d372ad672f42d3a103e89354bc8a925
35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
/* GDB self-test for each gdbarch.
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Copyright (C) 2017-2022 Free Software Foundation, Inc.
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This file is part of GDB.
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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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#ifndef SELFTEST_ARCH_H
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#define SELFTEST_ARCH_H
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typedef void self_test_foreach_arch_function (struct gdbarch *);
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namespace selftests
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{
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/* Register a selftest running FUNCTION for each arch supported by GDB. */
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extern void
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register_test_foreach_arch (const std::string &name,
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self_test_foreach_arch_function *function);
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}
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#endif /* SELFTEST_ARCH_H */
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