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6e7eef7216
PR rust/30211 points out a crash caused by a particular completion. This turns out to happen because a Rust minsym winds up in a C++-specific path in strncmp_iw_with_mode, which ultimately causes the completer to pass invalid arguments to string::append. This patch fixes the bug by reordering the language constants so that Rust comes before C++, and then using rust_demangle. This ensures that minsyms are correctly marked as "Rust", avoiding this code and thus the crash. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=20367 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=30211 Reviewed-By: Andrew Burgess <aburgess@redhat.com>
65 lines
2.1 KiB
Plaintext
65 lines
2.1 KiB
Plaintext
# Copyright (C) 2016-2023 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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#
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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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#
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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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# Test method calls.
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load_lib rust-support.exp
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require allow_rust_tests
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standard_testfile .rs
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug rust}]} {
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return -1
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}
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set line [gdb_get_line_number "set breakpoint 1 here"]
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if {![runto ${srcfile}:$line]} {
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untested "could not run to breakpoint"
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return -1
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}
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gdb_test "print x" " = methods::HasMethods \\{value: 0\\}"
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gdb_test "print methods::HasMethods{value: 73}" \
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" = methods::HasMethods \\{value: 73\\}"
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gdb_test "print methods::HasMethods{..x}" \
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" = methods::HasMethods \\{value: 0\\}"
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gdb_test "print methods::HasMethods{value:19, ..x}" \
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" = methods::HasMethods \\{value: 19\\}"
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gdb_test "print x.take()" " = methods::HasMethods \\{value: 0\\}"
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gdb_test "print *(x.incr())" " = methods::HasMethods \\{value: 1\\}"
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gdb_test "print *((&mut x).incr())" " = methods::HasMethods \\{value: 2\\}"
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gdb_test "print a.value()" " = 23"
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gdb_test "print (&mut a).value()" " = 23"
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# gdb_test "print a.take_value().0" " = 23"
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gdb_test "print b.value()" " = 24"
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gdb_test "print c.value()" " = 452"
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set line [gdb_get_line_number "set breakpoint 2 here"]
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gdb_breakpoint ${srcfile}:$line
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gdb_continue_to_breakpoint "second breakpoint"
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gdb_test "print *self" " = 23"
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gdb_test "info functions HasMethods::new" \
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"fn methods::HasMethods::new\\(\\) -> methods::HasMethods;"
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# Regression test for PR rust/20367 and PR rust/30211. This used to
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# crash.
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gdb_test_no_output "complete break what"
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