mirror of
https://github.com/bminor/binutils-gdb.git
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a207f6b3a3
The "python" command (and the Python implementation of the gdb "source" command) does not handle Python exceptions in the same way as other gdb-facing Python code. In particular, exceptions are turned into a generic error rather than being routed through gdbpy_handle_exception, which takes care of converting to 'quit' as appropriate. I think this was done this way because PyRun_SimpleFile and friends do not propagate the Python exception -- they simply indicate that one occurred. This patch reimplements these functions to respect the general gdb convention here. As a bonus, some Windows-specific code can be removed, as can the _execute_file function. The bulk of this change is tweaking the test suite to match the new way that exceptions are displayed. These changes are largely uninteresting. However, it's worth pointing out the py-error.exp change. Here, the failure changes because the test changes the host charset to something that isn't supported by Python. This then results in a weird error in the new setup. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31354 Acked-By: Tom de Vries <tdevries@suse.de> Reviewed-By: Eli Zaretskii <eliz@gnu.org>
488 lines
20 KiB
Plaintext
488 lines
20 KiB
Plaintext
# Copyright (C) 2009-2024 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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# This file is part of the GDB testsuite. It tests the mechanism
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# exposing inferiors to Python.
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load_lib gdb-python.exp
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require allow_python_tests
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standard_testfile
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if { [gdb_compile_pthreads ${srcdir}/${subdir}/${srcfile} ${binfile} executable {debug}] != "" } {
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return -1
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}
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# Start with a fresh gdb.
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clean_restart ${testfile}
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switch [get_endianness] {
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little { set python_pack_char "<" }
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big { set python_pack_char ">" }
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}
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# Test memory read operations without execution.
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gdb_py_test_silent_cmd "python addr = gdb.lookup_global_symbol ('int8_global').value().address" \
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"get global variable address" 0
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gdb_test "python \
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int8_global_mv = gdb.selected_inferior().read_memory (addr, 1); \
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print(int.from_bytes(int8_global_mv\[0\], byteorder='little'))" \
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"\r\n42" \
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"read memory without execution"
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# The following tests require execution.
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if {![runto_main]} {
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return 0
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}
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# The most recently added inferior.
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set most_recent_inf 1
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# A helper function that adds a new inferior. It returns the expected
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# number of the new inferior. ARG is a string to pass to
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# add-inferior.
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proc add_inferior {{arg ""}} {
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global most_recent_inf
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incr most_recent_inf
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gdb_test "add-inferior $arg" "Added inferior $most_recent_inf.*" \
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"add inferior $most_recent_inf"
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return $most_recent_inf
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}
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# Test basic gdb.Inferior attributes and methods.
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gdb_py_test_silent_cmd "python inferiors = gdb.inferiors ()" "get inferiors list" 1
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gdb_test "python print (inferiors)" \
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"\\(<gdb.Inferior num=1, pid=$decimal>,\\)" "verify inferiors list"
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gdb_py_test_silent_cmd "python i0 = inferiors\[0\]" "get first inferior" 0
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gdb_test "python print ('result = %s' % (i0 == inferiors\[0\]))" " = True" "test equality comparison (true)"
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gdb_test "python print ('result = %s' % i0.num)" " = \[0-9\]+" "test Inferior.num"
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gdb_test "python print ('result = %s' % i0.connection_num)" " = \[0-9\]+" "test Inferior.connection_num"
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gdb_test "python print ('result = %s' % (i0.connection_num == i0.connection.num))" " = True" \
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"Inferior.connection_num equals Inferior.connection.num"
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gdb_test "python print ('result = %s' % i0.pid)" " = \[0-9\]+" "test Inferior.pid"
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gdb_test "python print ('result = %s' % i0.was_attached)" " = False" "test Inferior.was_attached"
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gdb_test "python print (i0.threads ())" \
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"\\(<gdb.InferiorThread id=${decimal}\\.${decimal} target-id=\"\[^\r\n\]*\">,\\)" \
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"test Inferior.threads"
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gdb_test "python print (i0.progspace)" "<gdb.Progspace object at $hex>"
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gdb_test "python print (i0.progspace == gdb.progspaces()\[0\])" "True"
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# Add a user defined attribute to the inferior, and check the
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# attribute can be read back.
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gdb_test_no_output "python i0._user_attr = 123" \
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"add a user defined attribute to the inferior object"
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gdb_test "python print(i0._user_attr)" \
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"123" "read back user defined attribute from i0"
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gdb_test "python print(gdb.inferiors()\[0\]._user_attr)" \
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"123" "read back user defined attribute from gdb.inferiors"
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# Record the main thread, and check its __repr__ while we're at it.
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gdb_test_no_output "python main_thread = gdb.inferiors()\[0\].threads()\[0\]"
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gdb_test "python print(main_thread)" \
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"<gdb.InferiorThread id=${decimal}\\.${decimal} target-id=\"\[^\r\n\]*\">" \
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# Test the number of inferior threads.
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gdb_breakpoint check_threads
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gdb_continue_to_breakpoint "cont to check_threads" ".*pthread_barrier_wait.*"
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gdb_test "python print (len (i0.threads ()))" "\r\n9" "test Inferior.threads 2"
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# Grab a worker thread from the thread list. A worker thread is the
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# first thread that is not the main thread. The worker thread object
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# will become invalid when the corresponding thread exits.
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gdb_test_no_output "python worker_thread = next(filter(lambda thr : thr != main_thread, i0.threads()))"
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gdb_test "python print(worker_thread)" \
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"<gdb.InferiorThread id=${decimal}\\.${decimal} target-id=\"\[^\r\n\]*\">" \
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"test repr of a valid thread"
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# Add a user defined attribute to the worker thread, check the
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# attribute can be read back, and check the attribute is not present
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# on the main thread.
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gdb_test_no_output "python worker_thread._user_attribute = 123" \
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"add user defined attribute to InferiorThread object"
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gdb_test "python print(worker_thread._user_attribute)" "123" \
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"read back user defined attribute"
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gdb_test "python print(main_thread._user_attribute)" \
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[multi_line \
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"AttributeError.*: 'gdb\\.InferiorThread' object has no attribute '_user_attribute'" \
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"Error occurred in Python.*"] \
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"attempt to read non-existent user defined attribute"
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# Proceed to the next test.
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gdb_breakpoint [gdb_get_line_number "Break here."]
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gdb_continue_to_breakpoint "cont to Break here." ".*Break here\..*"
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# Check the repr() for an invalid gdb.InferiorThread object.
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gdb_test "python print(worker_thread)" "<gdb.InferiorThread \\(invalid\\)>" \
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"test repr of an invalid thread"
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# Check the user defined attribute is still present on the invalid thread object.
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gdb_test "python print(worker_thread._user_attribute)" "123" \
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"check user defined attribute on an invalid InferiorThread object"
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# Test memory read and write operations.
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gdb_py_test_silent_cmd "python addr = gdb.selected_frame ().read_var ('str')" \
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"read str address" 0
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gdb_test "python astr = gdb.inferiors()\[0\].read_memory (addr, 5); print(astr)" \
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"<memory at $hex>" \
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"read str contents"
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gdb_test "python print(astr\[0\])" "b'h'"
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gdb_py_test_silent_cmd "python a = bytes('a', 'ascii')" "" 0
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gdb_py_test_silent_cmd "python astr\[1\] = a" "change str" 0
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gdb_py_test_silent_cmd "python gdb.inferiors()\[0\].write_memory (addr, astr)" \
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"write str" 1
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gdb_test "print str" " = \"hallo, testsuite\"" \
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"ensure str was changed in the inferior"
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# Add a new inferior here, so we can test that operations work on the
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# correct inferior.
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set num [add_inferior]
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# Confirm the new inferior doesn't have the user defined attribute,
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# but that the first inferior does still have the attribute.
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gdb_test "python print(gdb.inferiors()\[1\]._user_attr)" \
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[multi_line \
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"AttributeError.*: 'gdb\\.Inferior' object has no attribute '_user_attr'" \
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"Error occurred in Python.*"] \
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"check new inferior doesn't have user defined attribute"
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gdb_test "python print(gdb.inferiors()\[0\]._user_attr)" \
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"123" "read back user defined attribute again"
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# Test memory search.
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set hex_number {0x[0-9a-fA-F][0-9a-fA-F]*}
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set dec_number {[0-9]+}
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set history_prefix {[$][0-9]* = }
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set newline {[\r\n]+}
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set pattern_not_found "${newline}.None"
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set one_pattern_found "${newline}.${dec_number}"
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# Test string pattern.
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with_test_prefix "string" {
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gdb_test "set *(int32_t*) &int8_search_buf\[10\] = 0x61616161"
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gdb_test "py search_buf = gdb.selected_frame ().read_var ('int8_search_buf')"
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gdb_test_no_output "py start_addr = search_buf.address"
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gdb_test_no_output "py length = search_buf.type.sizeof"
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# Switch to the new inferior before testing.
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gdb_test "inferior $num" "Switching to inferior $num.*" \
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"switch to inferior $num"
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, length, 'aaa'))" \
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"${one_pattern_found}" "find string pattern"
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# Test not finding pattern because search range too small, with
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# potential find at the edge of the range.
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, 10+3, 'aaaa'))" \
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"${pattern_not_found}" "pattern not found at end of range"
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# Increase the search range by 1 and we should find the pattern.
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, 10+3+1, 'aaa'))" \
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"${one_pattern_found}" "pattern found at end of range"
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}
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# While still in the new inferior, test reading and writing memory
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# again.
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gdb_test "python astr = gdb.inferiors()\[0\].read_memory (addr, 5); print(astr)" \
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"<memory at $hex>" \
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"read str while other inferior selected"
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gdb_test "python print(astr\[1\])" "b'a'" \
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"print a character from the string"
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gdb_py_test_silent_cmd "python astr\[1\] = b'X'" "change str again" 0
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gdb_py_test_silent_cmd "python gdb.inferiors()\[0\].write_memory (addr, astr)" \
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"write str while other inferior selected" 1
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gdb_test "inferior 1" "Switching to inferior 1.*" "switch back to inferior 1"
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gdb_test "print str" " = \"hXllo, testsuite\"" \
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"ensure str was changed while other inferior selected"
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gdb_test_no_output "remove-inferiors $num" "remove-inferiors $num"
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# Import struct to pack the following patterns.
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gdb_test_no_output "py from struct import *"
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# Test 16-bit pattern.
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with_test_prefix "16-bit" {
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gdb_test_no_output "set int16_search_buf\[10\] = 0x1234"
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gdb_test_no_output "py search_buf = gdb.selected_frame ().read_var ('int16_search_buf')"
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gdb_test_no_output "py start_addr = search_buf.address"
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gdb_test_no_output "py length = search_buf.type.sizeof"
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gdb_test_no_output "py pattern = pack('${python_pack_char}H',0x1234)"
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, length, pattern))" \
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"${one_pattern_found}" "find 16-bit pattern, with value pattern"
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}
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# Test 32-bit pattern.
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with_test_prefix "32-bit" {
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gdb_test_no_output "set int32_search_buf\[10\] = 0x12345678"
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gdb_test_no_output "py search_buf = gdb.selected_frame ().read_var ('int32_search_buf')"
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gdb_test_no_output "py start_addr = search_buf.address"
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gdb_test_no_output "py length = search_buf.type.sizeof"
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gdb_test_no_output "py pattern = pack('${python_pack_char}I',0x12345678)"
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, length, pattern))" \
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"${one_pattern_found}" "find 32-bit pattern, with python pattern"
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}
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# Test 64-bit pattern.
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with_test_prefix "64-bit" {
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gdb_test_no_output "set int64_search_buf\[10\] = 0xfedcba9876543210LL"
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gdb_test_no_output "py search_buf = gdb.selected_frame ().read_var ('int64_search_buf')"
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gdb_test_no_output "py start_addr = search_buf.address"
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gdb_test_no_output "py length = search_buf.type.sizeof"
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gdb_test_no_output "py pattern = pack('${python_pack_char}Q', 0xfedcba9876543210)"
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, length, pattern))" \
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"${one_pattern_found}" "find 64-bit pattern, with value pattern"
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}
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# Test mixed-sized patterns.
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with_test_prefix "mixed-sized" {
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gdb_test_no_output "set *(int8_t*) &search_buf\[10\] = 0x62"
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gdb_test_no_output "set *(int16_t*) &search_buf\[11\] = 0x6363"
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gdb_test_no_output "set *(int32_t*) &search_buf\[13\] = 0x64646464"
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gdb_test_no_output "py search_buf = gdb.selected_frame ().read_var ('search_buf')"
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gdb_test_no_output "py start_addr = search_buf\[0\].address"
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gdb_test_no_output "py pattern1 = pack('B', 0x62)"
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gdb_test_no_output "py pattern2 = pack('${python_pack_char}H', 0x6363)"
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gdb_test_no_output "py pattern3 = pack('${python_pack_char}I', 0x64646464)"
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, 100, pattern1))" \
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"${one_pattern_found}" "find mixed-sized pattern 1"
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, 100, pattern2))" \
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"${one_pattern_found}" "find mixed-sized pattern 2"
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, 100, pattern3))" \
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"${one_pattern_found}" "find mixed-sized pattern 3"
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}
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# Test search spanning a large range, in the particular case of native
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# targets, test the search spanning multiple chunks.
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# Remote targets may implement the search differently.
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set CHUNK_SIZE 16000
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with_test_prefix "large range" {
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gdb_test_no_output "set *(int32_t*) &search_buf\[0*${CHUNK_SIZE}+100\] = 0x12345678"
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gdb_test_no_output "set *(int32_t*) &search_buf\[1*${CHUNK_SIZE}+100\] = 0x12345678"
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gdb_test_no_output "py start_addr = gdb.selected_frame ().read_var ('search_buf')"
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gdb_test_no_output "py end_addr = start_addr + gdb.selected_frame ().read_var ('search_buf_size')"
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gdb_test_no_output "py pattern = pack('${python_pack_char}I', 0x12345678)"
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gdb_test_no_output "py first = gdb.inferiors()\[0\].search_memory (start_addr,end_addr - start_addr, pattern)"
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gdb_test "py print (first)" "${one_pattern_found}" "search spanning large range 1st result"
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gdb_test_no_output "py start_addr = first + 1"
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gdb_test_no_output "py second = gdb.inferiors()\[0\].search_memory (start_addr, end_addr - start_addr, pattern)"
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gdb_test "py print (second)" "${one_pattern_found}" "search spanning large range 2nd result"
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gdb_test_no_output "py start_addr = second + 1"
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gdb_test_no_output "py third = gdb.inferiors()\[0\].search_memory (start_addr, end_addr - start_addr, pattern)"
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gdb_test "py print (third)" "${pattern_not_found}" "search spanning large range 3rd result"
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}
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# For native targets, test a pattern straddling a chunk boundary.
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if [isnative] {
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with_test_prefix "straddling" {
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gdb_test_no_output "set *(int32_t*) &search_buf\[${CHUNK_SIZE}-1\] = 0xfdb97531"
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gdb_test_no_output "py pattern = pack('${python_pack_char}I', 0xfdb97531)"
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gdb_test_no_output "py start_addr = gdb.selected_frame ().read_var ('search_buf')"
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gdb_test "py print (gdb.inferiors()\[0\].search_memory (start_addr, end_addr - start_addr, pattern))" \
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"${one_pattern_found}" "find pattern straddling chunk boundary"
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}
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}
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# Test Inferior is_valid.
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with_test_prefix "is_valid" {
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gdb_py_test_silent_cmd "python inf_list = gdb.inferiors()" "get initial list" 1
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gdb_test "python print (len(inf_list))" "1" "get inferior list length 1"
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gdb_test "python print (inf_list\[0\].is_valid())" "True" \
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"check inferior validity 1"
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# The "dummy" line below used to cause a gdb crash.
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gdb_test_multiline "install new inferior event handler" \
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"python" "" \
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"my_inferior_count = 1" "" \
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"def new_inf_handler(evt):" "" \
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" global my_inferior_count" "" \
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" if evt.inferior is not None:" "" \
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" my_inferior_count = my_inferior_count + 1" "" \
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" dummy = gdb.Value(True)" "" \
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"gdb.events.new_inferior.connect(new_inf_handler)" "" \
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"end" ""
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gdb_test_multiline "install inferior deleted event handler" \
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"python" "" \
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"def del_inf_handler(evt):" "" \
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" global my_inferior_count" "" \
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" if evt.inferior is not None:" "" \
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" my_inferior_count = my_inferior_count - 1" "" \
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"gdb.events.inferior_deleted.connect(del_inf_handler)" "" \
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"end" ""
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set num [add_inferior]
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gdb_py_test_silent_cmd "python inf_list = gdb.inferiors()" "get new list" 1
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gdb_test "python print (len(inf_list))" "2" "get inferior list length 2"
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gdb_test "python print (inf_list\[0\].is_valid())" "True" \
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"check inferior validity 2"
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gdb_test "python print (my_inferior_count)" "2" \
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"test new-inferior event handler"
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gdb_test "python print (inf_list\[1\].is_valid())" "True" \
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"check inferior validity 3"
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gdb_test_no_output "remove-inferiors $num"
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gdb_test "python print (inf_list\[0\].is_valid())" "True" \
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"check inferior validity 4"
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gdb_test "python print (inf_list\[1\].is_valid())" "False" \
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"check inferior validity 5"
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gdb_test "python print (my_inferior_count)" "1" \
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"test inferior-deleted event handler"
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# Test that other properties and methods handle the removed inferior
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# correctly.
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gdb_test "python print (inf_list\[1\].num)" \
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"RuntimeError.*: Inferior no longer exists.*"
|
|
gdb_test "python print (inf_list\[1\].connection_num)" \
|
|
"RuntimeError.*: Inferior no longer exists.*"
|
|
gdb_test "python print (inf_list\[1\].connection)" \
|
|
"RuntimeError.*: Inferior no longer exists.*"
|
|
gdb_test "python print (inf_list\[1\].pid)" \
|
|
"RuntimeError.*: Inferior no longer exists.*"
|
|
gdb_test "python print (inf_list\[1\].was_attached)" \
|
|
"RuntimeError.*: Inferior no longer exists.*"
|
|
gdb_test "python print (inf_list\[1\].progspace)" \
|
|
"RuntimeError.*: Inferior no longer exists.*"
|
|
gdb_test "python print (inf_list\[1\].threads ())" \
|
|
"RuntimeError.*: Inferior no longer exists.*"
|
|
gdb_test "python print (inf_list\[1\].thread_from_thread_handle (1))" \
|
|
"RuntimeError.*: Inferior no longer exists.*"
|
|
}
|
|
|
|
# Test gdb.selected_inferior()
|
|
with_test_prefix "selected_inferior" {
|
|
gdb_test "inferior 1" ".*" "switch to first inferior"
|
|
gdb_test "py print (gdb.selected_inferior().num)" "1" "first inferior selected"
|
|
gdb_test "py print (gdb.selected_inferior().connection_num)" "1" \
|
|
"first inferior's connection number"
|
|
gdb_test "py print (gdb.selected_inferior().connection.num)" "1" \
|
|
"first inferior's connection number, though connection object"
|
|
# Figure out if inf 1 has a native target.
|
|
set inf_1_is_native [gdb_is_target_native]
|
|
|
|
set num [add_inferior "-no-connection"]
|
|
gdb_test "inferior $num" ".*" "switch to inferior $num"
|
|
gdb_test "py print (gdb.selected_inferior().num)" "$num" \
|
|
"inferior $num selected"
|
|
gdb_test "py print (gdb.selected_inferior().connection_num)" "None" \
|
|
"inferior $num's None connection number"
|
|
gdb_test "py print (gdb.selected_inferior().connection)" "None" \
|
|
"inferior $num's None connection"
|
|
gdb_test "target native" "Done. Use the \"run\" command to start a process." \
|
|
"target for inferior $num"
|
|
|
|
# If inf 1 has a native target, inf 3's target is shared with 1's.
|
|
# Otherwise, it must have created a new target with a new number.
|
|
if {$inf_1_is_native} {
|
|
set expected_connection_num 1
|
|
} else {
|
|
set expected_connection_num 2
|
|
}
|
|
gdb_test "py print (gdb.selected_inferior().connection_num)" \
|
|
"$expected_connection_num" \
|
|
"inferior $num's native connection number"
|
|
gdb_test "py print (gdb.selected_inferior().connection.num)" \
|
|
"$expected_connection_num" \
|
|
"inferior $num's native connection number, though connection object"
|
|
|
|
# Test printing of gdb.TargetConnection object.
|
|
gdb_test "py print (gdb.selected_inferior().connection)" \
|
|
"<gdb.TargetConnection num=${expected_connection_num}, what=\"\[^\"\]+\">" \
|
|
"print a connection object"
|
|
|
|
gdb_test "inferior 1" ".*" "switch back to first inferior"
|
|
gdb_test_no_output "remove-inferiors $num"
|
|
}
|
|
|
|
# Test repr()/str()
|
|
with_test_prefix "__repr__" {
|
|
set num [add_inferior]
|
|
gdb_py_test_silent_cmd "python infs = gdb.inferiors()" "get inferior list" 1
|
|
gdb_test "python print (infs\[0\])" "<gdb.Inferior num=1, pid=$decimal>"
|
|
gdb_test "python print (infs)" \
|
|
"\\\(<gdb.Inferior num=1, pid=$decimal>, <gdb.Inferior num=$num, pid=$decimal>\\\)" \
|
|
"print all inferiors 1"
|
|
gdb_test_no_output "remove-inferiors $num"
|
|
gdb_test "python print (infs)" \
|
|
"\\\(<gdb.Inferior num=1, pid=$decimal>, <gdb.Inferior \\\(invalid\\\)>\\\)" \
|
|
"print all inferiors 2"
|
|
}
|
|
|
|
# Test architecture.
|
|
with_test_prefix "architecture" {
|
|
gdb_test "inferior 1" ".*" "switch to first inferior"
|
|
gdb_test "python print(gdb.selected_frame().architecture() is gdb.selected_inferior().architecture())" \
|
|
"True" \
|
|
"inferior architecture matches frame architecture"
|
|
}
|
|
|
|
gdb_test "python print(gdb.selected_inferior().main_name)" \
|
|
"main" \
|
|
"print main name"
|
|
|
|
gdb_test_no_output "set args x y z"
|
|
gdb_test "python print(gdb.selected_inferior().arguments)" \
|
|
"x y z" \
|
|
"print arguments"
|
|
|
|
gdb_test_no_output "python gdb.selected_inferior().arguments = 'a b c'" \
|
|
"set arguments from string"
|
|
gdb_test "show args" \
|
|
[string_to_regexp "Argument list to give program being debugged when it is started is \"a b c\"."] \
|
|
"show args from string"
|
|
|
|
gdb_test_no_output "python gdb.selected_inferior().arguments = \['a', 'b c'\]" \
|
|
"set arguments from list"
|
|
gdb_test "show args" \
|
|
[string_to_regexp "Argument list to give program being debugged when it is started is \"a b\\ c\"."] \
|
|
"show args from list"
|
|
|
|
gdb_test_no_output "python gdb.selected_inferior().clear_env()" \
|
|
"clear environment"
|
|
gdb_test_no_output "show environment"
|
|
|
|
gdb_test_no_output "python gdb.selected_inferior().set_env('DEI', 'value')" \
|
|
"set environment variable"
|
|
gdb_test "show environment" \
|
|
"DEI=value" \
|
|
"examine environment variable"
|
|
|
|
gdb_test_no_output "python gdb.selected_inferior().unset_env('DEI')" \
|
|
"unset environment variable"
|
|
gdb_test_no_output "show environment" \
|
|
"environment is empty again"
|