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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
104 lines
2.6 KiB
C
104 lines
2.6 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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#include "defs.h"
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#include <functional>
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#if GDB_SELF_TEST
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#include "gdbsupport/selftest.h"
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#include "selftest-arch.h"
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#include "arch-utils.h"
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namespace selftests {
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static bool skip_arch (const char *arch)
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{
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if (strcmp ("fr300", arch) == 0)
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{
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/* PR 20946 */
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return true;
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}
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if (strcmp ("powerpc:EC603e", arch) == 0
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|| strcmp ("powerpc:e500mc", arch) == 0
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|| strcmp ("powerpc:e500mc64", arch) == 0
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|| strcmp ("powerpc:titan", arch) == 0
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|| strcmp ("powerpc:vle", arch) == 0
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|| strcmp ("powerpc:e5500", arch) == 0
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|| strcmp ("powerpc:e6500", arch) == 0)
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{
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/* PR 19797 */
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return true;
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}
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return false;
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}
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/* Generate a selftest for each gdbarch known to GDB. */
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static std::vector<selftest>
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foreach_arch_test_generator (const std::string &name,
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self_test_foreach_arch_function *function)
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{
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std::vector<selftest> tests;
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std::vector<const char *> arches = gdbarch_printable_names ();
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tests.reserve (arches.size ());
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for (const char *arch : arches)
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{
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if (skip_arch (arch))
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continue;
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auto test_fn
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= ([=] ()
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{
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struct gdbarch_info info;
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info.bfd_arch_info = bfd_scan_arch (arch);
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struct gdbarch *gdbarch = gdbarch_find_by_info (info);
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SELF_CHECK (gdbarch != NULL);
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function (gdbarch);
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reset ();
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});
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tests.emplace_back (string_printf ("%s::%s", name.c_str (), arch),
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test_fn);
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}
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return tests;
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}
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/* See selftest-arch.h. */
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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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add_lazy_generator ([=] ()
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{
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return foreach_arch_test_generator (name, function);
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});
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}
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void
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reset ()
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{
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/* Clear GDB internal state. */
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registers_changed ();
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reinit_frame_cache ();
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}
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} // namespace selftests
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#endif /* GDB_SELF_TEST */
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