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PR python/32163 points out that various types provided by gdb are not
added to the gdb module, so they aren't available for interactive
inspection. I think this is just an oversight.
This patch fixes the problem by introducing a new helper function that
both readies the type and then adds it to the appropriate module. The
patch also poisons PyType_Ready, the idea being to avoid this bug in
the future.
v2:
* Fixed a bug in original patch in gdb.Architecture registration
* Added regression test for the types mentioned in the bug
Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=32163
Reviewed-By: Alexandra Petlanova Hajkova <ahajkova@redhat.com>
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Now that defs.h, server.h and common-defs.h are included via the
`-include` option, it is no longer necessary for source files to include
them. Remove all the inclusions of these files I could find. Update
the generation scripts where relevant.
Change-Id: Ia026cff269c1b7ae7386dd3619bc9bb6a5332837
Approved-By: Pedro Alves <pedro@palves.net>
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This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
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Currently, when we add a new python sub-system to GDB,
e.g. py-inferior.c, we end up having to create a new function like
gdbpy_initialize_inferior, which then has to be called from the
function do_start_initialization in python.c.
In some cases (py-micmd.c and py-tui.c), we have two functions
gdbpy_initialize_*, and gdbpy_finalize_*, with the second being called
from finalize_python which is also in python.c.
This commit proposes a mechanism to manage these initialization and
finalization calls, this means that adding a new Python subsystem will
no longer require changes to python.c or python-internal.h, instead,
the initialization and finalization functions will be registered
directly from the sub-system file, e.g. py-inferior.c, or py-micmd.c.
The initialization and finalization functions are managed through a
new class gdbpy_initialize_file in python-internal.h. This class
contains a single global vector of all the initialization and
finalization functions.
In each Python sub-system we create a new gdbpy_initialize_file
object, the object constructor takes care of registering the two
callback functions.
Now from python.c we can call static functions on the
gdbpy_initialize_file class which take care of walking the callback
list and invoking each callback in turn.
To slightly simplify the Python sub-system files I added a new macro
GDBPY_INITIALIZE_FILE, which hides the need to create an object. We
can now just do this:
GDBPY_INITIALIZE_FILE (gdbpy_initialize_registers);
One possible problem with this change is that there is now no
guaranteed ordering of how the various sub-systems are initialized (or
finalized). To try and avoid dependencies creeping in I have added a
use of the environment variable GDB_REVERSE_INIT_FUNCTIONS, this is
the same environment variable used in the generated init.c file.
Just like with init.c, when this environment variable is set we
reverse the list of Python initialization (and finalization)
functions. As there is already a test that starts GDB with the
environment variable set then this should offer some level of
protection against dependencies creeping in - though for full
protection I guess we'd need to run all gdb.python/*.exp tests with
the variable set.
I have tested this patch with the environment variable set, and saw no
regressions, so I think we are fine right now.
One other change of note was for gdbpy_initialize_gdb_readline, this
function previously returned void. In order to make this function
have the correct signature I've updated its return type to int, and we
now return 0 to indicate success.
All of the other initialize (and finalize) functions have been made
static within their respective sub-system files.
There should be no user visible changes after this commit.
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This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.
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In a later commit in this series I will propose removing all of the
explicit gdbpy_initialize_* calls from python.c and replace these
calls with a more generic mechanism.
One of the side effects of this generic mechanism is that the order in
which the various Python sub-systems within GDB are initialized is no
longer guaranteed.
On the whole I don't think this matters, most of the sub-systems are
independent of each other, though testing did reveal a few places
where we did have dependencies, though I don't think those
dependencies were explicitly documented in a comment anywhere.
This commit removes the first dependency issue, with this and the next
commit, all of the implicit inter-sub-system dependencies will be
replaced by explicit dependencies, which will allow me to, I think,
clean up how the sub-systems are initialized.
The dependency is around the py_insn_type. This type is setup in
gdbpy_initialize_instruction and used in gdbpy_initialize_record.
Rather than depend on the calls to these two functions being in a
particular order, in this commit I propose adding a new function
py_insn_get_insn_type. This function will take care of setting up the
py_insn_type type and calling PyType_Ready. This helper function can
be called from gdbpy_initialize_record and
gdbpy_initialize_instruction, and the py_insn_type will be initialized
just once.
To me this is better, the dependency is now really obvious, but also,
we no longer care in which order gdbpy_initialize_record and
gdbpy_initialize_instruction are called.
There should be no user visible changes after this commit.
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This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
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This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
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I was inspired by this patch of Simon's:
https://sourceware.org/pipermail/gdb-patches/2020-November/173522.html
... to remove other typedefs that are no longer necessary now that gdb
uses C++.
I didn't remove absolutely every one -- I didn't touch the tdep files.
However, I removed many of them. In some cases, I removed an existing
different struct tag.
2020-12-04 Tom Tromey <tromey@adacore.com>
* linespec.c (struct linespec_token): Rename; remove typedef.
* guile/scm-block.c (struct block_smob): Remove typedef.
(struct block_syms_progress_smob): Likewise.
* guile/scm-symbol.c (struct symbol_smob): Remove typedef.
* guile/scm-symtab.c (symtab_smob): Remove typedef.
(struct sal_smob): Remove typedef.
* guile/scm-param.c (struct param_smob): Remove typedef.
* guile/scm-progspace.c (struct pspace_smob): Rename.
* guile/scm-objfile.c (struct objfile_smob): Rename.
* guile/scm-iterator.c (struct iterator_smob): Rename.
* guile/scm-frame.c (struct frame_smob): Rename.
* guile/scm-arch.c (struct arch_smob): Rename.
* guile/scm-type.c (struct field_smob): Remove typedef.
(struct type_smob): Rename.
* guile/scm-cmd.c (struct command_smob): Remove typedef.
* guile/scm-ports.c (struct ioscm_memory_port): Remove typedef.
* guile/scm-value.c (struct value_smob): Remove typedef.
* guile/scm-lazy-string.c (lazy_string_smob): Remove typedef.
* guile/guile-internal.h (struct scheme_variable)
(struct scheme_function, struct scheme_integer_constant)
(struct gdb_smob, struct chained_gdb_smob)
(struct eqable_gdb_smob, arch_smob, frame_smob, iterator_smob)
(objfile_smob, pspace_smob, type_smob): Remove typedef.
* guile/scm-pretty-print.c (pretty_printer_smob): Remove typedef.
(struct pretty_printer_worker_smob): Remove typedef.
* guile/scm-exception.c (struct exception_smob): Remove typedef.
* python/py-block.c (struct block_object): Remove typedef.
(block_syms_iterator_object): Update.
(set_block): Update.
(block_syms_iterator_object): Remove typedef.
* python/py-inferior.c (struct membuf_object): Remove typedef.
* python/py-symtab.c (struct symtab_object): Remove typedef.
(set_symtab): Update.
(sal_object): Remove typedef.
(set_sal): Update.
* python/py-frame.c (frame_object): Remove typedef.
* python/py-record-btrace.c (struct btpy_list_object): Remove
typedef.
* python/py-arch.c (struct arch_object): Remove typedef.
* python/py-linetable.c (struct linetable_entry_object)
(linetable_object, struct ltpy_iterator_object): Remove typedef.
* python/py-events.h (eventregistry_object): Remove typedef.
(struct events_object): Remove typedef.
* python/python-internal.h (gdbpy_breakpoint_object): Remove
typedef.
(thread_object): Remove typedef.
* python/py-progspace.c (pspace_object): Remove typedef.
* python/py-value.c (struct value_object): Remove typedef.
* python/py-record.h (recpy_record_object): Remove typedef.
(struct recpy_element_object): Remove typedef.
* python/py-lazy-string.c (lazy_string_object): Remove typedef.
* python/py-objfile.c (objfile_object): Remove typedef.
* python/py-cmd.c (struct cmdpy_object): Remove typedef.
* python/py-type.c (type_object): Remove typedef.
(typy_iterator_object): Update.
(set_type): Update.
(field_object): Remove typedef.
(typy_iterator_object): Remove typedef.
* python/py-registers.c (register_descriptor_iterator_object):
Remove typedef.
(struct register_descriptor_object)
(struct reggroup_iterator_object, struct reggroup_object): Remove
typedef.
* python/py-record.c (recpy_gap_object): Remove typedef.
* python/py-symbol.c (symbol_object): Remove typedef.
(set_symbol): Update.
* python/py-event.h (event_object): Remove typedef.
* python/py-param.c (parmpy_object): Remove typedef.
* python/py-instruction.c (struct py_insn_obj): Remove typedef.
* python/py-unwind.c (struct pending_frame_object): Remove typedef.
(unwind_info_object, struct cached_frame_info): Likewise.
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gdb/ChangeLog:
Update copyright year range in all GDB files.
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This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
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gdb/ChangeLog:
Update copyright year range in all GDB files
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This adds a generic instruction class to Python and has gdb.RecordInstruction
inherit from it.
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