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2018-12-27Translate PyExc_KeyboardInterrupt to gdb "quit"Tom Tromey1-0/+40
A while back I typed "info pretty-printers" with a large number of printers installed, and I typed "q" to stop the pagination. I noticed that gdb printed a Python exception in this case. It seems to me that, instead, quitting pagination (or control-c'ing a Python command generally) should be handled the same way that gdb normally handles a quit. This patch implements this idea by changing gdbpy_handle_exception to treat PyExc_KeyboardInterrupt specially. gdb/ChangeLog 2018-12-27 Tom Tromey <tom@tromey.com> * python/py-utils.c (gdbpy_handle_exception): Translate PyExc_KeyboardInterrupt to quit. gdb/testsuite/ChangeLog 2018-12-27 Tom Tromey <tom@tromey.com> * gdb.python/py-cmd.exp (test_python_inline_or_multiline): Add pagination test.
2018-11-21Make command-repeat work after gdb.executeBenno Fünfstück1-0/+1
Since commit 56bcdbea2bed ("Let gdb.execute handle multi-line commands") command repetition after using the `gdb.execute` Python function fails (the previous command is not repeated anymore). This happens because read_command_lines_1 sets dont_repeat, but the call to prevent_dont_repeat in execute_gdb_command is later. The fix is to move the call to prevent_dont_repeat to the beginning of the function. Tested on my laptop (ArchLinux-x86_64). gdb/ChangeLog: PR python/23714 * gdb/python/python.c (execute_gdb_command): Call prevent_dont_repeat earlier to avoid affecting dont_repeat. gdb/testuite/ChangeLog: PR python/23714 * gdb.python/python.exp: Test command repetition after gdb.execute.
2018-10-19Testsuite: Fix racy conditions in py-cmd.expAlan Hayward1-35/+36
The test loop in test_python_inline_or_multiline was not checking for the gdb prompt. readline_is_used then reads in the prompt causing it to fail and the final chunk of tests to be skipped. Spotted this error because sometimes the gdb prompt does get processed correctly and the final tests are run, causing it to show up in the racy tests script output. Fix by ensuring the prompt is always checked for. To do this the list style needs reformatting so that variables get expanded. 2018-10-19 Alan Hayward <alan.hayward@arm.com> * gdb.python/py-cmd.exp: Check for gdb_prompt.
2018-10-06Add Inferior.architecture methodTom Tromey1-0/+8
I've written a couple of gdb unwinders in Python, and while doing so, I wanted to find the architecture of the inferior. (In an unwinder in particular, one can't use the frame's architecture, because there is no frame.) This patch adds Inferior.architecture to allow this. Normally I think I would have chosen an attribute and not a method here, but seeing that Frame.architecture is a method, I chose a method as well, for consistency. gdb/ChangeLog 2018-10-06 Tom Tromey <tom@tromey.com> PR python/19399: * python/py-inferior.c: Add "architecture" entry. (infpy_architecture): New function. gdb/doc/ChangeLog 2018-10-06 Tom Tromey <tom@tromey.com> PR python/19399: * python.texi (Inferiors In Python): Document Inferior.Architecture. gdb/testsuite/ChangeLog 2018-10-06 Tom Tromey <tom@tromey.com> PR python/19399: * gdb.python/py-inferior.exp: Add architecture test.
2018-10-06Fix Python gdb.Breakpoint.location crashTom Tromey1-0/+5
I noticed today that gdb.Breakpoint.location will crash when applied to a catchpoint made with "catch throw". The bug is that "catch throw" makes a breakpoint that is of type bp_breakpoint, but which does not have a location. Regression tested on x86-64 Fedora 28. gdb/ChangeLog 2018-10-06 Tom Tromey <tom@tromey.com> * python/py-breakpoint.c (bppy_get_location): Handle a bp_breakpoint without a location. gdb/testsuite/ChangeLog 2018-10-06 Tom Tromey <tom@tromey.com> * gdb.python/py-breakpoint.exp (check_last_event): Check location of a "throw" catchpoint.
2018-10-04Clean up "Reading symbols" outputTom Tromey1-1/+1
This patch is another attempt to fix PR cli/19551. Unlike my previous attempt, it doesn't print progress. Instead, it just changes some messages and adds newlines to make the output a bit nicer. It also removes the "done." text that was previously emitted. The idea here is that it is obvious when gdb is done reading debug info, as it starts then doing something else; and that while this message did not provide much benefit to users, it did make it harder to make the output clean. After this change the output from "./gdb -iex 'set complaint 1' -nx ./gdb" reads: Reading symbols from ./gdb... .debug_ranges entry has start address of zero [in module /home/tromey/gdb/build/gdb/gdb] DW_AT_low_pc 0x0 is zero for DIE at 0x17116c1 [in module /home/tromey/gdb/build/gdb/gdb] .debug_line address at offset 0xa22f5 is 0 [in module /home/tromey/gdb/build/gdb/gdb] During symbol reading, unsupported tag: 'DW_TAG_unspecified_type'. During symbol reading, const value length mismatch for 'std::ratio<1, 1000000000>::num', got 8, expected 0. gdb/ChangeLog 2018-10-04 Tom Tromey <tom@tromey.com> PR cli/19551: * symfile.c (symbol_file_add_with_addrs): Update output. * psymtab.c (require_partial_symbols): Update output. gdb/testsuite/ChangeLog 2018-10-04 Tom Tromey <tom@tromey.com> PR cli/19551: * lib/mi-support.exp (mi_gdb_file_cmd): Update. * lib/gdb.exp (gdb_file_cmd): Update. * gdb.stabs/weird.exp (print_weird_var): Update. * gdb.server/solib-list.exp: Update. * gdb.multi/remove-inferiors.exp (test_remove_inferiors): Update. * gdb.mi/mi-cli.exp: Update. * gdb.linespec/linespec.exp: Update. * gdb.dwarf2/dw2-stack-boundary.exp: Update. * gdb.dwarf2/dw2-objfile-overlap.exp: Update. * gdb.cp/cp-relocate.exp: Update. * gdb.base/sym-file.exp: Update. * gdb.base/relocate.exp: Update. * gdb.base/readnever.exp: Update. * gdb.base/print-symbol-loading.exp (test_load_core): Update. * gdb.base/kill-detach-inferiors-cmd.exp: Update. * gdb.base/dbx.exp (gdb_file_cmd): Update. * gdb.base/code_elim.exp: Update. * gdb.base/break-unload-file.exp (test_break): Update. * gdb.base/break-interp.exp (test_attach_gdb): Update. * gdb.base/break-idempotent.exp (force_breakpoint_re_set): Update. * gdb.base/attach.exp (do_attach_tests): Update. * gdb.base/sepdebug.exp: Update. * gdb.python/py-section-script.exp: Update.
2018-09-23Allow setting a parameter to raise gdb.GdbErrorTom Tromey1-0/+15
A convention in the Python layer is that raising a gdb.GdbError will not print the Python stack -- instead the exception is treated as any other gdb exception. PR python/18852 asks that this treatment be extended the the get_set_value method of gdb.Parameter. This makes sense, because it lets Python-created parameters act like gdb parameters. 2018-09-23 Tom Tromey <tom@tromey.com> PR python/18852: * python/py-param.c (get_set_value): Use gdbpy_handle_exception. gdb/doc/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/18852: * python.texi (Parameters In Python): Document exception behavior of get_set_string. gdb/testsuite/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/18852: * gdb.python/py-parameter.exp: Add test for parameter that throws on "set".
2018-09-23Check for negative argument in Type.template_argumentTom Tromey1-0/+4
typy_template_argument did not check if the template argument was non-negative. A negative value could cause a gdb crash. 2018-09-23 Tom Tromey <tom@tromey.com> PR python/17284: * python/py-type.c (typy_template_argument): Check for negative argument number. gdb/testsuite/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/17284: * gdb.python/py-template.exp (test_template_arg): Add test for negative template argument number.
2018-09-23Report Python errors coming from gdb.post_eventTom Tromey1-1/+12
PR python/14062 points out that errors coming from the gdb.post_event callback are not reported. This can make it hard to understand why your Python code in gdb isn't working. Because users have control over whether exceptions are printed at all, it seems good to simply have post_event report errors in the usual way. 2018-09-23 Tom Tromey <tom@tromey.com> PR python/14062: * python/python.c (gdbpy_run_events): Do not ignore exceptions. gdb/testsuite/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/14062: * gdb.python/python.exp: Add test for post_event error.
2018-09-23Allow conversion of pointers to Python intTom Tromey1-2/+9
PR python/18170 questions why it's not possible to convert a pointer value to a Python int. Digging a bit shows that the Python 2.7 int() constructor will happily return a long in some cases. And, it seems gdb already understands this in other places -- this is what gdb_py_object_from_longest handles. So, this patch simply extends valpy_int to allow pointer conversions, as valpy_long does. gdb/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/18170: * python/py-value.c (valpy_int): Allow conversion from pointer type. gdb/testsuite/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/18170: * gdb.python/py-value.exp (test_value_numeric_ops): Add tests to convert pointers to int and long.
2018-09-23Preserve sign when converting gdb.Value to Python intTom Tromey1-0/+8
PR python/20126 points out that sometimes the conversion of a gdb.Value can result in a negative Python integer. This happens because valpy_int does not examine the signedness of the value's type. gdb/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/20126: * python/py-value.c (valpy_int): Respect type sign. gdb/testsuite/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/20126: * gdb.python/py-value.exp (test_value_numeric_ops): Add signed-ness conversion tests.
2018-09-23Allow more Python scalar conversionsTom Tromey1-0/+13
PR python/18352 points out that the gdb Python code can't convert an integer-valued gdb.Value to a Python float. While writing the test I noticed that, similarly, converting integer gdb.Values to float does not work. However, all of these cases seem reasonable. gdb/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/18352; * python/py-value.c (valpy_float): Allow conversions from int or char. (valpy_int, valpy_long): Allow conversions from float. gdb/testsuite/ChangeLog 2018-09-23 Tom Tromey <tom@tromey.com> PR python/18352; * gdb.python/py-value.exp (test_float_conversion): New proc. Use it.
2018-09-17python: Make gdb.execute("show commands") work (PR 23669)Simon Marchi1-0/+4
Since commit 56bcdbea2bed ("Let gdb.execute handle multi-line commands") trying to use a command like gdb.execute("show commands") in Python fails. GDB ends up trying to run the "commands" command. The reason is that GDB gets confused with the special "commands" command. In process_next_line, the lookup_cmd_1 function returns the cmd_list_element representing the "commands" sub-command of "show". Lower, we check the cmd_list_element to see if it matches various control commands by name, including the "commands" command. This is where we wrongfully conclude that the executed command must be "commands", when in reality it was "show commands". The fix proposed in this patch removes the comparisons by name, instead comparing the cmd_list_element object by pointer with the objects created at initialization time. Tested on the buildbot, though on a single builder (Fedora-x86_64-m64). gdb/ChangeLog: PR python/23669 * breakpoint.c (commands_cmd_element): New. (_initialize_breakpoint): Assign commands_cmd_element. * breakpoint.h (commands_cmd_element): New. * cli/cli-script.c (while_cmd_element, if_command, define_cmd_element): New. (command_name_equals): Remove. (process_next_line): Compare commands by pointer, not by name. (_initialize_cli_script): Assign the various cmd_list_element variables. * compile/compile.c (compile_cmd_element): New. (_initialize_compile): Assign compile_cmd_element. * compile/compile.h (compile_cmd_element): New. * guile/guile.c (guile_cmd_element): New. (install_gdb_commands): Assign guile_cmd_element. * guile/guile.h (guile_cmd_element): New. * python/python.c (python_cmd_element): New. (_initialize_python): Assign python_cmd_element. * python/python.h (python_cmd_element): New. * tracepoint.c (while_stepping_cmd_element): New. (_initialize_tracepoint): Assign while_stepping_cmd_element. * tracepoint.h (while_stepping_cmd_element): New. gdb/testsuite/ChangeLog: PR python/23669 * gdb.python/python.exp: Test gdb.execute("show commands").
2018-09-13python: Add Progspace.objfiles methodSimon Marchi1-0/+31
This patch adds an objfiles method to the Progspace object, which returns a sequence of the objfiles associated to that program space. I chose a method rather than a property for symmetry with gdb.objfiles(). gdb/ChangeLog: * python/py-progspace.c (PSPY_REQUIRE_VALID): New macro. (pspy_get_objfiles): New function. (progspace_object_methods): New. (pspace_object_type): Add tp_methods callback. * python/python-internal.h (build_objfiles_list): New declaration. * python/python.c (build_objfiles_list): New function. (gdbpy_objfiles): Implement using build_objfiles_list. * NEWS: Mention the Progspace.objfiles method. gdb/doc/ChangeLog: * python.texi (Program Spaces In Python): Document the Progspace.objfiles method. (Objfiles In Python): Mention that gdb.objfiles() is identical to gdb.selected_inferior().progspace.objfiles(). gdb/testsuite/ChangeLog: * gdb.python/py-progspace.exp: Test the Progspace.objfiles method.
2018-09-13python: Add Inferior.progspace propertySimon Marchi1-0/+5
This patch adds a progspace property to the gdb.Inferior type, which allows getting the gdb.Progspace object associated to that inferior. In conjunction with the following patch, this will allow scripts iterate on objfiles associated with a particular inferior. gdb/ChangeLog: * python/py-inferior.c (infpy_get_progspace): New function. (inferior_object_getset): Add progspace property. * NEWS: Mention the new property. gdb/doc/ChangeLog: * python.texi (Inferiors In Python): Document Inferior.progspace. (Program Spaces In Python): Document that gdb.current_progspace() is the same as gdb.selected_inferior().progspace. gdb/testsuite/ChangeLog: * gdb.python/py-inferior.exp: Add tests for Inferior.progspace and a few other Inferior properties when the Inferior is no longer valid.
2018-09-13python: Provide textual representation for Inferior and ObjfileSimon Marchi3-2/+27
Printing a GDB Python object is notoriously not helpful: >>> print(gdb.selected_inferior()) <gdb.Inferior object at 0x7fea59aed198> >>> print(gdb.objfiles()) [<gdb.Objfile object at 0x7fea59b57c90>] This makes printing debug traces more difficult than it should be. This patch provides some repr() implementation for these two types (more to come if people agree with the idea, but I want to test the water first). Here's the same example as above, but with this patch: >>> print(gdb.selected_inferior()) <gdb.Inferior num=1> >>> print(gdb.objfiles()) [<gdb.Objfile filename=/home/emaisin/build/binutils-gdb-gcc-git/gdb/test>] I implemented repr rather than str, because when printing a list (or another container I suppose), Python calls the repr method of the elements. This is useful when printing a list of inferiors or objfiles. The print(gdb.objfiles()) above would not have worked if I had implemented str. I found this post useful to understand the difference between repr and str: https://stackoverflow.com/questions/1436703/difference-between-str-and-repr gdb/ChangeLog: * python/py-inferior.c (infpy_repr): New. (inferior_object_type): Register infpy_repr. * python/py-objfile.c (objfpy_repr): New. (objfile_object_type): Register objfpy_repr. gdb/testsuite/ChangeLog: * gdb.python/py-inferior.exp: Test repr() of gdb.Inferior. * gdb.python/py-objfile.exp: Test repr() of gdb.Objfile. * gdb.python/py-symtab.exp: Update test printing an objfile. gdb/doc/ChangeLog: * python.texi (Basic Python): Mention the string representation of GDB Python objects.
2018-09-12python: Add tests for trying to use an invalid Inferior objectSimon Marchi1-0/+13
This patch adds tests for trying to use property or methods on a gdb.Inferior object that represents an inferior that does not exist anymore. We expect an exception to be thrown. gdb/testsuite/ChangeLog: * gdb.python/py-inferior.exp: Test using an invalid gdb.Inferior object.
2018-09-08Make py-prettyprint.exp test names uniqueTom Tromey1-4/+8
I noticed that the py-prettyprint.exp test names were not unique. This patch fixes the problem via with_test_prefix. gdb/testsuite/ChangeLog 2018-09-08 Tom Tromey <tom@tromey.com> * gdb.python/py-prettyprint.exp: Use with_test_prefix.
2018-09-08Allow a pretty-printer without a to_string methodTom Tromey3-0/+16
PR python/16047 points out that, while the documentation says that the to_string method is optional for a pretty-printer, the code disagrees and throws an exception. This patch fixes the problem. varobj is already ok here. Tested on x86-64 Fedora 26. gdb/ChangeLog 2018-09-08 Tom Tromey <tom@tromey.com> PR python/16047: * python/py-prettyprint.c (pretty_print_one_value): Check for to_string method. gdb/testsuite/ChangeLog 2018-09-08 Tom Tromey <tom@tromey.com> PR python/16047: * gdb.python/py-prettyprint.py (pp_int_typedef3): New class. (register_pretty_printers): Register new printer. * gdb.python/py-prettyprint.exp (run_lang_tests): Add int_type3 test. * gdb.python/py-prettyprint.c (int_type3): New typedef. (an_int_type3): New global.
2018-08-27MI: Fix printing of frame architecture with Python frame filters enabledJan Vrany1-3/+5
Commit 6d52907e226a (MI: Print frame architecture when printing frames on an MI channel) added frame's architecture to MI frame output. However the frame architecture was not correctly printed in the output of "-stack-list-frames" with frame filters enabled (via "-enable-frame-filters"). This was because with frame filters enabled, the actual frame printing is done in "py_print_frame" rather than "print_frame". This issue is now fixed. gdb/Changelog: 2018-08-27 Jan Vrany <jan.vrany@fit.cvut.cz> * python/py-framefilter.c (py_print_frame): Print frame architecture when printing on an MI output. gdb/testsuite/Changelog: 2018-08-27 Jan Vrany <jan.vrany@fit.cvut.cz> * gdb.python/py-framefilter-mi.exp: Update regexp to check for "arch" field in frame output.
2018-08-04[gdb/testsuite] Fix regexp in py-rbreak.expTom de Vries1-1/+1
This fails for me on openSUSE leap 15.0: ... FAIL: gdb.python/py-rbreak.exp: check number of returned breakpoints is 11 ... The rbreak "" command expects 11 breaks, but I see two extra for __libc_csu_fini and __libc_csu_init: ... Breakpoint 13 at 0x4005b0: file elf-init.c, line 106.^M Breakpoint 14 at 0x400540: file elf-init.c, line 68.^M ... This patch fixes the failing test by excluding functions starting with an underscore. Tested on x86_64-linux. 2018-08-04 Tom de Vries <tdevries@suse.de> * gdb.python/py-rbreak.exp: Fix rbreak regexp.
2018-07-31Fix segfault when invoking -var-info-path-expression on a dynamic varobjJan Vrany3-0/+207
Invoking -var-info-path-expression on a dynamic varobj lead either in wrong (nonsense) result or to a segmentation fault in cplus_describe_child(). This was caused by the fact that varobj_get_path_expr() called cplus_path_expr_of_child() ignoring the fact the parent of the variable is dynamic. Then, cplus_describe_child() accessed the underlaying C type members by index, causing (i) either wrong (nonsense) expression being returned (since dynamic child may be completely arbibtrary value) or (ii) segmentation fault (in case the index higher than number of underlaying C type members. This fixes the problem by checking whether a varobj is a child of a dynamic varobj and, if so, reporting an error as described in documentation. gdb/ChangeLog: * varobj.c (varobj_get_path_expr_parent): Report an error if parent is a dynamic varobj. gdb/testsuite/Changelog: * gdb.python/py-mi-var-info-path-expression.c: New file. * gdb.python/py-mi-var-info-path-expression.py: New file. * gdb.python/py-mi-var-info-path-expression.exp: New file.
2018-06-05Add "continue" response to pagerTom Tromey1-6/+6
This adds a "continue" response to the pager. If the user types "c" in response to the pager prompt, pagination will be disabled for the duration of one command -- but re-enabled afterward. This is handy if you type a command that produces a lot of output, and you don't want to baby-sit it by typing "return" each time the prompt comes up. Tested by the buildbot. gdb/ChangeLog 2018-06-05 Tom Tromey <tom@tromey.com> PR cli/12326: * NEWS: Add entry about pager. * utils.c (pagination_disabled_for_command): New global. (prompt_for_continue): Allow "c" response to prompt. (reinitialize_more_filter): Clear pagination_disabled_for_command. (fputs_maybe_filtered): Check pagination_disabled_for_command. gdb/doc/ChangeLog 2018-06-05 Tom Tromey <tom@tromey.com> PR cli/12326: * gdb.texinfo (Screen Size): Document "c" response to pagination prompt. gdb/testsuite/ChangeLog 2018-06-05 Tom Tromey <tom@tromey.com> PR cli/12326: * gdb.cp/static-print-quit.exp: Update. * lib/gdb.exp (pagination_prompt): Update. * gdb.base/page.exp: Use pagination_prompt. Add new tests. * gdb.python/python.exp: Update.
2018-05-31Fix "set" handling of Python parametersTom Tromey1-2/+2
It's long bothered me that setting a Python parameter from the CLI will print the "set" help text by default. I think usually "set" commands should be silent. And, while you can modify this behavior a bit by providing a "get_set_string" method, if this method returns an empty string, a blank line will be printed. This patch removes the "help" behavior and changes the get_set_string behavior to avoid printing a blank line. The code has a comment about preserving API behavior, but I don't think this is truly important; and in any case the workaround -- implementing get_set_string -- is trivial. Regression tested on x86-64 Fedora 26. 2018-04-26 Tom Tromey <tom@tromey.com> * NEWS: Mention new "set" behavior. * python/py-param.c (get_set_value): Don't print an empty string. Don't call get_doc_string. gdb/doc/ChangeLog 2018-04-26 Tom Tromey <tom@tromey.com> * python.texi (Parameters In Python): Update get_set_string documentation.
2018-05-31Add basic Python API for convenience variablesTom Tromey1-0/+20
This adds a basic Python API for accessing convenience variables. With this, convenience variables can be read and set from Python. Although gdb supports convenience variables whose value changes at each call, this is not exposed to Python; it could be, but I think it's just as good to write a convenience function in this situation. This is PR python/23080. Tested on x86-64 Fedora 26. 2018-04-22 Tom Tromey <tom@tromey.com> PR python/23080: * NEWS: Update for new functions. * python/py-value.c (gdbpy_set_convenience_variable) (gdbpy_convenience_variable): New functions. * python/python-internal.h (gdbpy_convenience_variable) (gdbpy_set_convenience_variable): Declare. * python/python.c (python_GdbMethods): Add convenience_variable, set_convenience_variable. doc/ChangeLog 2018-04-22 Tom Tromey <tom@tromey.com> PR python/23080: * python.texi (Basic Python): Document gdb.convenience_variable, gdb.set_convenience_variable. testsuite/ChangeLog 2018-04-22 Tom Tromey <tom@tromey.com> PR python/23080: * gdb.python/python.exp: Add convenience variable tests.
2018-05-04Let gdb.execute handle multi-line commandsTom Tromey1-0/+3
This changes the Python API so that gdb.execute can now handle multi-line commands, like "commands" or "define". ChangeLog 2018-05-04 Tom Tromey <tom@tromey.com> PR python/22730: * NEWS: Mention gdb.execute change. * gdbcmd.h (execute_control_command): Don't declare. * python/python.c (execute_gdb_command): Use read_command_lines_1, execute_control_commands, execute_control_commands_to_string. * cli/cli-script.h (execute_control_commands) (execute_control_commands_to_string): Declare. (execute_control_command): Add from_tty parameter. * cli/cli-script.c (execute_control_commands) (execute_control_commands_to_string): New functions. (execute_user_command): Use execute_control_commands. (execute_control_command_1): Add "from_tty" parameter. Update. (execute_control_command): Likewise. testsuite/ChangeLog 2018-05-04 Tom Tromey <tom@tromey.com> PR python/22730: * gdb.python/python.exp: Test multi-line execute.
2018-05-04Allow breakpoint commands to be set from PythonTom Tromey1-1/+9
This changes the Python API so that breakpoint commands can be set by writing to the "commands" attribute. ChangeLog 2018-05-04 Tom Tromey <tom@tromey.com> PR python/22731: * NEWS: Mention that breakpoint commands are writable. * python/py-breakpoint.c (bppy_set_commands): New function. (breakpoint_object_getset) <"commands">: Use it. doc/ChangeLog 2018-05-04 Tom Tromey <tom@tromey.com> PR python/22731: * python.texi (Breakpoints In Python): Mention that "commands" is writable. testsuite/ChangeLog 2018-05-04 Tom Tromey <tom@tromey.com> PR python/22731: * gdb.python/py-breakpoint.exp: Test setting breakpoint commands.
2018-05-02Set test message in py-parameter.expTom Tromey1-1/+2
Pedro pointed out that a test in py-parameter.exp had an empty message. This fixes it. testsuite/ChangeLog 2018-05-02 Tom Tromey <tom@tromey.com> * gdb.python/py-parameter.exp: Set test message.
2018-05-02Handle var_zuinteger and var_zuinteger_unlimited from PythonTom Tromey1-0/+23
PR python/20084 points out that the Python API doesn't handle the var_zuinteger and var_zuinteger_unlimited parameter types. This patch adds support for these types. Regression tested on x86-64 Fedora 26. ChangeLog 2018-05-02 Tom Tromey <tom@tromey.com> PR python/20084: * python/python.c (gdbpy_parameter_value): Handle var_zuinteger and var_zuinteger_unlimited. * python/py-param.c (struct parm_constant): Add PARAM_ZUINTEGER and PARAM_ZUINTEGER_UNLIMITED. (set_parameter_value): Handle var_zuinteger and var_zuinteger_unlimited. (add_setshow_generic): Likewise. (parmpy_init): Likewise. doc/ChangeLog 2018-05-02 Tom Tromey <tom@tromey.com> PR python/20084: * python.texi (Parameters In Python): Document PARAM_ZUINTEGER and PARAM_ZUINTEGER_UNLIMITED. testsuite/ChangeLog 2018-05-02 Tom Tromey <tom@tromey.com> PR python/20084: * gdb.python/py-parameter.exp: Add PARAM_ZUINTEGER and PARAM_ZUINTEGER_UNLIMITED tests.
2018-04-30Expose type alignment on gdb.TypeTom Tromey2-0/+6
This adds an "alignof" attribute to gdb.Type in the Python API. 2018-04-30 Tom Tromey <tom@tromey.com> * NEWS: Mention Type.align. * python/py-type.c (typy_get_alignof): New function. (type_object_getset): Add "alignof". 2018-04-30 Tom Tromey <tom@tromey.com> * python.texi (Types In Python): Document Type.align. 2018-04-30 Tom Tromey <tom@tromey.com> * gdb.python/py-type.exp: Check align attribute. * gdb.python/py-type.c: New "aligncheck" global.
2018-03-26Throw a "quit" on a KeyboardException in py-framefilter.cTom Tromey2-1/+11
If a C-c comes while the Python code for a frame filter is running, it will be turned into a Python KeyboardException. It seems good for this to be treated like a GDB quit, so this patch changes py-framefilter.c to notice this situation and call throw_quit in this case. gdb/ChangeLog 2018-03-26 Tom Tromey <tom@tromey.com> * python/py-framefilter.c (throw_quit_or_print_exception): New function. (gdbpy_apply_frame_filter): Use it. gdb/testsuite/ChangeLog 2018-03-26 Tom Tromey <tom@tromey.com> * gdb.python/py-framefilter.exp: Add test for KeyboardInterrupt. * gdb.python/py-framefilter.py (name_error): New global. (ErrorInName.function): Use name_error.
2018-03-26Allow hiding of some filtered framesTom Tromey1-0/+3
When a frame filter elides some frames, they are still printed by "bt", indented a few spaces. PR backtrace/15582 notes that it would be nice for users if elided frames could simply be dropped. This patch adds this capability. gdb/ChangeLog 2018-03-26 Tom Tromey <tom@tromey.com> PR backtrace/15582: * stack.c (backtrace_command): Parse "hide" argument. * python/py-framefilter.c (py_print_frame): Handle PRINT_HIDE. * extension.h (enum frame_filter_flags) <PRINT_HIDE>: New constant. gdb/doc/ChangeLog 2018-03-26 Tom Tromey <tom@tromey.com> PR backtrace/15582: * gdb.texinfo (Backtrace): Mention "hide" argument. gdb/testsuite/ChangeLog 2018-03-26 Tom Tromey <tom@tromey.com> PR backtrace/15582: * gdb.python/py-framefilter.exp: Add "bt hide" test.
2018-03-23Testsuite: fully migrate to use_gdb_stub convenience funcAndreas Arnez1-1/+1
In the GDB test suite, there are still multiple invocations of "target_info exists use_gdb_stub". However, the recommended way of checking for use_gdb_stub is to call the convenience function of the same name. Replace these occurrences and just call "use_gdb_stub" instead. gdb/testsuite/ChangeLog: * gdb.ada/exec_changed.exp: Replace "target_info exists use_gdb_stub" by "use_gdb_stub". * gdb.ada/start.exp: Likewise. * gdb.base/async-shell.exp: Likewise. * gdb.base/attach-pie-misread.exp: Likewise. * gdb.base/attach-wait-input.exp: Likewise. * gdb.base/break-entry.exp: Likewise. * gdb.base/break-interp.exp: Likewise. * gdb.base/dprintf-detach.exp: Likewise. * gdb.base/nostdlib.exp: Likewise. * gdb.base/solib-nodir.exp: Likewise. * gdb.base/statistics.exp: Likewise. * gdb.base/testenv.exp: Likewise. * gdb.mi/mi-exec-run.exp: Likewise. * gdb.mi/mi-start.exp: Likewise. * gdb.multi/dummy-frame-restore.exp: Likewise. * gdb.multi/multi-arch-exec.exp: Likewise. * gdb.multi/multi-arch.exp: Likewise. * gdb.multi/tids.exp: Likewise. * gdb.multi/watchpoint-multi.exp: Likewise. * gdb.python/py-events.exp: Likewise. * gdb.threads/attach-into-signal.exp: Likewise. * gdb.threads/attach-stopped.exp: Likewise. * gdb.threads/threadapply.exp: Likewise. * lib/selftest-support.exp: Likewise.
2018-02-26Make "bt N" print correct number of frames when using a frame filterTom Tromey1-1/+1
PR python/16497 notes that using "bt" with a positive argument prints the wrong number of frames when a frame filter is in use. Also, in this case, the non-frame-filter path will print a message about "More stack frames" when there are more; but this is not done in the frame-filter case. The first problem is that backtrace_command_1 passes the wrong value to apply_ext_lang_frame_filter -- that function takes the final frame's number as an argument, but backtrace_command_1 passes the count, which is off by one. The solution to the second problem is to have the C stack-printing code stop at the correct number of frames and then print the message. Tested using the buildbot. ChangeLog 2018-02-26 Tom Tromey <tom@tromey.com> PR python/16497: * stack.c (backtrace_command_1): Set PRINT_MORE_FRAMES flag. Fix off-by-one in py_end computation. * python/py-framefilter.c (gdbpy_apply_frame_filter): Handle PRINT_MORE_FRAMES. * extension.h (enum frame_filter_flags) <PRINT_MORE_FRAMES>: New constant. 2018-02-26 Tom Tromey <tom@tromey.com> PR python/16497: * gdb.python/py-framefilter.exp: Update test.
2018-02-02MI: Allow non-raw varobj evaluationLeszek Swirski via gdb-patches4-1/+50
Make the MI variable object expression evaluation, with the -var-evaluate-expression command, recursively call pretty printers, to match the output of normal expression printing. Consider the following code: struct Foo { int val; }; struct Wrapper { Foo foo; }; int main() { Wrapper w; w.foo.val = 23; } and this pretty printer file: import gdb.printing class FooPrinter: def __init__(self, val): self.val = val def to_string(self): return "Foo" + str(self.val["val"]) class WrapperPrinter: def __init__(self, val): self.val = val def to_string(self): return self.val["foo"] test_printer = gdb.printing.RegexpCollectionPrettyPrinter("test") test_printer.add_printer('Foo', '^Foo$', FooPrinter) test_printer.add_printer('Wrapper', '^Wrapper$', WrapperPrinter) gdb.printing.register_pretty_printer(None, test_printer) Setting a breakpoint at the end of the function, we call the following commands: -enable-pretty-printing ^done -var-create var_w @ w ^done,name="var_w",numchild="0",value="{val = 23}",type="Wrapper",dynamic="1",has_more="0" -var-create var_w_foo @ w.foo ^done,name="var_w_foo",numchild="0",value="Foo23",type="Foo",dynamic="1",has_more="0" -var-evaluate-expression var_w ^done,value="{val = 23}" -var-evaluate-expression var_w_foo ^done,value="Foo23" -data-evaluate-expression w ^done,value="Foo23" -data-evaluate-expression w.foo ^done,value="Foo23" So, in the -var-evaluate-expression var_w case, we print the "raw" value of w.foo, while in the -data-evaluate-expression w case, we print the pretty printed w.foo value. After this patch, all of the above print "Foo23". gdb/ChangeLog: * varobj.c (varobj_formatted_print_options): Allow recursive pretty printing if pretty printing is enabled. gdb/testsuite/ChangeLog: * gdb.python/py-prettyprint.c (struct to_string_returns_value_inner, struct to_string_returns_value_wrapper): New. (main): Add tsrvw variable. * gdb.python/py-prettyprint.py (ToStringReturnsValueInner, ToStringReturnsValueWrapper): New classes. (register_pretty_printers): Register new pretty-printers. * gdb.python/py-prettyprint.exp (run_lang_tests): Test printing recursive pretty printer. * gdb.python/py-mi.exp: Likewise.
2018-01-21gdb: Don't store a thread-id for floating varobjAndrew Burgess1-6/+6
When creating a varobj with -var-create a user can create either fixed varobj, or floating varobj. A fixed varobj will always be evaluated within the thread/frame/block in which the varobj was created, if that thread/frame/block is no longer available then the varobj is considered out of scope. A floating varobj will always be evaluated within the current thread/frame/block. Despite never using them GDB was storing the thread/frame/block into a floating varobj, and the thread-id would then be displayed when GDB reported on the state of the varobj, this could confuse a user into thinking that the thread-id was relevant. This commit prevents GDB storing the thread/frame/block onto floating varobj, and updates the few tests where this impacts the results. gdb/ChangeLog: * varobj.c (varobj_create): Don't set valid_block when creating a floating varobj. gdb/testsuite/ChangeLog: * gdb.python/py-mi.exp: Don't expect a thread-id for floating varobj. * gdb.mi/mi-var-create-rtti.exp: Likewise.
2018-01-02Update copyright year range in all GDB filesJoel Brobecker152-152/+152
gdb/ChangeLog: Update copyright year range in all GDB files
2017-12-13python: Add qualified parameter to gdb.BreakpointSimon Marchi2-1/+83
This patch adds the possibility to pass a qualified=True|False parameter when creating a breakpoint in Python. It is equivalent to using -qualified in a linespec. The parameter actually accepts any Python value, and converts it to boolean using Python's standard rules for that (https://docs.python.org/3/library/stdtypes.html#truth). Unlike the -source/-line/-function/-label parameters, it is possible to use -qualified with a "normal" (non-explicit) linespec. Therefore, it is possible (unlike these other parameters) to use this new parameter along with the spec parameter. I updated the py-breakpoint.exp test. To be able to test multiple locations using a namespace, I had to switch the test case to compile as C++. If we really wanted to, we could run it as both C and C++, but omit the C++-specific parts when running it as C. gdb/ChangeLog: * location.h (string_to_event_location): Add match_type parameter. * location.c (string_to_event_location): Likewise. * python/py-breakpoint.c (bppy_init): Handle qualified parameter. gdb/doc/ChangeLog: * python.texi (Manipulating breakpoints using Python): Document qualified parameter to gdb.Breakpoint. gdb/testsuite/ChangeLog: * gdb.python/py-breakpoint.c (foo_ns::multiply): New function. * gdb.python/py-breakpoint.exp: Compile the test case as c++, call test_bkpt_qualified. (test_bkpt_qualified): New proc.
2017-12-07Fix wrong prefix in py-breakpoint.expSimon Marchi1-73/+71
The prefix in test_bkpt_explicit_loc is wrong. Instead of using with_test_prefix directly, define test_bkpt_explicit_loc with proc_with_prefix. gdb/testsuite/ChangeLog: * gdb.python/py-breakpoint.exp (test_bkpt_explicit_loc): Define with proc_with_prefix, don't use with_test_prefix.
2017-12-07Implement explicit locations for Python breakpoints.Phil Muldoon2-1/+81
This introduces several new keywords to the bppy_init constructor. The spec parameter is now optional but mutually exclusive to the explicit keywords source, label, function and line. gdb/ChangeLog 2017-12-07 Phil Muldoon <pmuldoon@redhat.com> * python/py-breakpoint.c (bppy_init): Use string_to_event_location over basic location code. Implement explicit location keywords. (bppy_init_validate_args): New function. * NEWS: Document Python explicit breakpoint locations. doc/ChangeLog 2017-12-07 Phil Muldoon <pmuldoon@redhat.com> * python.texi (Breakpoints In Python): Add text relating to allowed explicit locations and keywords in gdb.Breakpoints. testsuite/ChangeLog 2017-12-07 Phil Muldoon <pmuldoon@redhat.com> * gdb.python/py-breakpoint.exp (test_bkpt_explicit_loc): Add new tests for explicit locations.
2017-11-29Fix Python rbreak tests setting too many breakpoints when glibc debug info ↵Phil Muldoon1-0/+1
is installed. 2017-11-29 Phil Muldoon <pmuldoon@redhat.com> * gdb.python/py-rbreak.exp: Set nosharedlibrary before tests.
2017-11-16Add Python rbreak command.Phil Muldoon3-0/+165
gdb/Changelog 2017-11-16 Phil Muldoon <pmuldoon@redhat.com> * python/python.c (gdbpy_rbreak): New function. * NEWS: Document Python rbreak feature. testsuite/Changelog 2017-11-16 Phil Muldoon <pmuldoon@redhat.com> * gdb.python/py-rbreak.exp: New file. * gdb.python/py-rbreak.c: New file. * gdb.python/py-rbreak-func2.c: New file. doc/Changelog 2017-11-16 Phil Muldoon <pmuldoon@redhat.com> * python.texi (Basic Python): Add rbreak documentation.
2017-11-03Skip gdb.python/py-thrhandle.exp if python is not enabled.Yao Qi1-0/+4
gdb/testsuite: 2017-11-03 Yao Qi <yao.qi@linaro.org> * gdb.python/py-thrhandle.exp: Skip it if python is not enabled.
2017-10-28Make gdb.selected_thread().inferior return a new referenceMaksim Dzabraev1-0/+9
thpy_get_inferior function should return a new reference to the existing inferior object, and therefore should increment its refcount. Fixed bug looks like this. If multiple time call gdb.selected_thread ().inferior, gdb throws exception: (gdb) pi gdb.selected_thread().inferior <gdb.Inferior object at 0x7f1952bea698> (gdb) pi gdb.selected_thread().inferior Python Exception <type 'exceptions.AttributeError'> 'NoneType' object has no attribute 'inferior': Error while executing Python code. (gdb) info threads Id Target Id Frame * 1 Thread 0x7f54f0474740 (LWP 584) "mc" 0x00007f54ef055c33 in
2017-10-16Use proc_with_prefix in py-breakpoint.expSimon Marchi1-394/+378
Use proc_with_prefix to avoid having to call with_test_prefix with a duplicate of the proc name. The diff is mostly lines being re-indented. gdb/testsuite/ChangeLog: * gdb.python/py-breakpoint.exp (test_bkpt_basic, test_bkpt_deletion, test_bkpt_cond_and_cmds, test_bkpt_invisible, test_watchpoints, test_bkpt_internal, test_bkpt_eval_funcs, test_bkpt_temporary, test_bkpt_address, test_bkpt_pending, test_bkpt_events): Use proc_with_prefix, remove with_test_prefix.
2017-10-13Remove is_remote kfail from gdb.python/py-evthreads.expPedro Alves1-6/+0
This testcase works fine with gdbserver nowadays. So remove the kfail. gdb/testsuite/ChangeLog: 2017-10-13 Pedro Alves <palves@redhat.com> Simon Marchi <simon.marchi@polymtl.ca> PR python/12966 * gdb.python/py-evthreads.exp: Remove is_remote target kfail.
2017-10-13Fix gdb.python/py-evthreads.exp with --target_board=native-extended-gdbserverPedro Alves1-2/+5
Fixes: Running ..../src/gdb/testsuite/gdb.python/py-evthreads.exp ... FAIL: gdb.python/py-evthreads.exp: run to breakpoint 1 FAIL: gdb.python/py-evthreads.exp: reached breakpoint 2 FAIL: gdb.python/py-evthreads.exp: thread 2 FAIL: gdb.python/py-evthreads.exp: reached breakpoint 3 FAIL: gdb.python/py-evthreads.exp: thread 3 FAIL: gdb.python/py-evthreads.exp: continue thread 1 [... cascading time outs ...] By following the usual pattern that makes sure that non-stop is enabled before connecting to gdbserver. gdb/testsuite/ChangeLog: 2017-10-13 Pedro Alves <palves@redhat.com> * gdb.python/py-evthreads.exp: Start GDB with "set non-stop on" already.
2017-10-13kfail gdb.python/py-evsignal.exp on RSP targets properlyPedro Alves1-1/+2
Fixes, with --target_board=native-extended-gdbserver: Running ..../src/gdb/testsuite/gdb.python/py-evsignal.exp ... FAIL: gdb.python/py-evsignal.exp: signal Thread 3 gdb/testsuite/ChangeLog: 2017-10-13 Pedro Alves <palves@redhat.com> * gdb.python/py-evsignal.exp: Check gdb_protocol instead of is_remote.
2017-09-21Test case for Inferior.thread_from_thread_handleKevin Buettner2-0/+196
As the title says, this is a test case for Inferior.thread_from_thread_handle, a python method which will, given a thread library dependent thread handle, find the GDB thread which corresponds to that thread handle (in the inferior under consideration). The C file for this test case causes the thread handles for the main thread and two child threads to be placed into an array. The test case runs to one of the functions (do_something()) at which point, it retrieves the thread handles from the array and attempts to find the corresponding thread in GDB's internal thread list. I use barriers to make sure that both threads have actually started; execution will stop when one of the threads breaks at do_something. Thanks to Simon Marchi for suggestions for forcing the thread numbering to be stable. gdb/testsuite/ChangeLog: * gdb.python/py-thrhandle.c, gdb.python/py-thrhandle.exp: New files.
2017-09-11Add new_inferior, inferior_deleted, and new_thread eventsTom Tromey2-0/+36
This adds a few new events to gdb's Python layer: new_inferior, inferior_deleted, and new_thread. I wanted to be able to add a combined inferior/thread display window to my GUI, and I needed a few events to make this work. This is PR python/15622. ChangeLog 2017-09-11 Tom Tromey <tom@tromey.com> PR python/15622: * NEWS: Add entry. * python/python.c (do_start_initialization): Initialize new event types. * python/python-internal.h (gdbpy_initialize_new_inferior_event) (gdbpy_initialize_inferior_deleted_event) (gdbpy_initialize_new_thread_event): Declare. * python/py-threadevent.c (create_thread_event_object): Add option "thread" parameter. * python/py-inferior.c (new_thread_event_object_type) (new_inferior_event_object_type) (inferior_deleted_event_object_type): Declare. (python_new_inferior, python_inferior_deleted): New functions. (add_thread_object): Emit new_thread event. (gdbpy_initialize_inferior): Attach new functions to corresponding observers. (new_thread, new_inferior, inferior_deleted): Define new event types. * python/py-evts.c (gdbpy_initialize_py_events): Add new registries. * python/py-events.h (events_object) <new_inferior, inferior_deleted, new_thread>: New fields. * python/py-event.h (create_thread_event_breakpoint): Add optional "thread" parameter. doc/ChangeLog 2017-09-11 Tom Tromey <tom@tromey.com> * python.texi (Events In Python): Document new events. testsuite/ChangeLog 2017-09-11 Tom Tromey <tom@tromey.com> * gdb.python/py-infthread.exp: Add tests for new_thread event. * gdb.python/py-inferior.exp: Add tests for new inferior events.