forked from Imagelibrary/binutils-gdb
deea250ab6
A recent discussion about what commands are allowed during
gdb.Breakpoint.stop, made me wonder if there would be less restrictions if
we'd do those commands as part of a breakpoint command list instead.
Attribute gdb.Breakpoint.commands is a string with gdb commands, so I
tried implementing a new class PyCommandsBreakpoint, derived from
gdb.Breakpoint, that supports a py_commands method.
My original idea was to forbid setting PyCommandsBreakpoint.commands, and do:
...
def py_commands(self):
print("VAR: %d" % self.var)
self.var += 1
gdb.execute("continue")
...
but as it turns out 'gdb.execute("continue")' does not behave the same way as
continue. I've filed PR python/32454 about this.
So the unsatisfactory solution is to first execute
PyCommandsBreakpoint.py_commands:
...
def py_commands(self):
print("VAR: %d" % self.var)
self.var += 1
...
and then:
...
self.commands = "continue"
...
I was hoping for a better outcome, but having done the work of writing this, I
suppose it has use as a test-case, perhaps also as an example of how to work
around PR python/32454.
Tested on x86_64-linux.
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=32454
46 lines
1.2 KiB
Plaintext
46 lines
1.2 KiB
Plaintext
# Copyright (C) 2025 Free Software Foundation, Inc.
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#
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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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# This file is part of the GDB testsuite.
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load_lib gdb-python.exp
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require allow_python_tests
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standard_testfile .c .py
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if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
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return -1
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}
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if { ![runto_main] } {
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return 0
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}
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set host_python_file \
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[gdb_remote_download host $srcdir/$subdir/$srcfile2]
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gdb_test_no_output "source $host_python_file" \
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"source python file"
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gdb_test "python TestBreakpoint()" \
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"Breakpoint $decimal .*"
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gdb_test "continue" \
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[multi_line \
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"VAR: 1" \
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"VAR: 2" \
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"VAR: 3"]
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