binutils-gdb/gdb/python/py-newobjfileevent.c

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/* Python interface to new object file loading events.
Copyright (C) 2011-2016 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "py-event.h"
Fix redefinition errors in C++ mode In C, we can forward declare static structure instances. That doesn't work in C++ though. C++ treats these as definitions. So then the compiler complains about symbol redefinition, like: src/gdb/elfread.c:1569:29: error: redefinition of ‘const sym_fns elf_sym_fns_lazy_psyms’ src/gdb/elfread.c:53:29: error: ‘const sym_fns elf_sym_fns_lazy_psyms’ previously declared here The intent of static here is naturally to avoid making these objects visible outside the compilation unit. The equivalent in C++ would be to instead define the objects in the anonymous namespace. But given that it's desirable to leave the codebase compiling as both C and C++ for a while, this just makes the objects extern. (base_breakpoint_ops is already declared in breakpoint.h, so we can just remove the forward declare from breakpoint.c) gdb/ChangeLog: 2015-02-11 Tom Tromey <tromey@redhat.com> Pedro Alves <palves@redhat.com> * breakpoint.c (base_breakpoint_ops): Delete. * dwarf2loc.c (dwarf_expr_ctx_funcs): Make extern. * elfread.c (elf_sym_fns_gdb_index, elf_sym_fns_lazy_psyms): Make extern. * guile/guile.c (guile_extension_script_ops, guile_extension_ops): Make extern. * ppcnbsd-tdep.c (ppcnbsd2_sigtramp): Make extern. * python/py-arch.c (arch_object_type): Make extern. * python/py-block.c (block_syms_iterator_object_type): Make extern. * python/py-bpevent.c (breakpoint_event_object_type): Make extern. * python/py-cmd.c (cmdpy_object_type): Make extern. * python/py-continueevent.c (continue_event_object_type) * python/py-event.h (GDBPY_NEW_EVENT_TYPE): Remove 'qual' parameter. Update all callers. * python/py-evtregistry.c (eventregistry_object_type): Make extern. * python/py-exitedevent.c (exited_event_object_type): Make extern. * python/py-finishbreakpoint.c (finish_breakpoint_object_type): Make extern. * python/py-function.c (fnpy_object_type): Make extern. * python/py-inferior.c (inferior_object_type, membuf_object_type): Make extern. * python/py-infevents.c (call_pre_event_object_type) (inferior_call_post_event_object_type). (memory_changed_event_object_type): Make extern. * python/py-infthread.c (thread_object_type): Make extern. * python/py-lazy-string.c (lazy_string_object_type): Make extern. * python/py-linetable.c (linetable_entry_object_type) (linetable_object_type, ltpy_iterator_object_type): Make extern. * python/py-newobjfileevent.c (new_objfile_event_object_type) (clear_objfiles_event_object_type): Make extern. * python/py-objfile.c (objfile_object_type): Make extern. * python/py-param.c (parmpy_object_type): Make extern. * python/py-progspace.c (pspace_object_type): Make extern. * python/py-signalevent.c (signal_event_object_type): Make extern. * python/py-symtab.c (symtab_object_type, sal_object_type): Make extern. * python/py-type.c (type_object_type, field_object_type) (type_iterator_object_type): Make extern. * python/python.c (python_extension_script_ops) (python_extension_ops): Make extern. * stap-probe.c (stap_probe_ops): Make extern.
2015-02-11 12:20:21 +01:00
extern PyTypeObject new_objfile_event_object_type
* python/py-arch.c (arch_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-block.c (block_syms_iterator_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-bpevent.c (breakpoint_event_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-cmd.c (cmdpy_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-continueevent.c (continue_event_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-event.h (GDBPY_NEW_EVENT_TYPE): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-events.h (thread_event_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-evtregistry.c (eventregistry_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-exitedevent.c (exited_event_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-finishbreakpoint.c (finish_breakpoint_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-function.c (fnpy_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-inferior.c (inferior_object_type, membuf_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-infthread.c (thread_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-lazy-string.c (lazy_string_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-newobjfileevent.c (new_objfile_event_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-objfile.c (objfile_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-param.c (parmpy_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-progspace.c (pspace_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-signalevent.c (signal_event_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-symtab.c (symtab_object_type, sal_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-type.c (type_object_type, field_object_type) (type_iterator_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF. * python/py-internal.h (CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF): New define. (value_object_type, block_object_type, symbol_object_type) (event_object_type, stop_event_object_type, breakpoint_object_type) (frame_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
2013-05-20 22:09:01 +02:00
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
Fix redefinition errors in C++ mode In C, we can forward declare static structure instances. That doesn't work in C++ though. C++ treats these as definitions. So then the compiler complains about symbol redefinition, like: src/gdb/elfread.c:1569:29: error: redefinition of ‘const sym_fns elf_sym_fns_lazy_psyms’ src/gdb/elfread.c:53:29: error: ‘const sym_fns elf_sym_fns_lazy_psyms’ previously declared here The intent of static here is naturally to avoid making these objects visible outside the compilation unit. The equivalent in C++ would be to instead define the objects in the anonymous namespace. But given that it's desirable to leave the codebase compiling as both C and C++ for a while, this just makes the objects extern. (base_breakpoint_ops is already declared in breakpoint.h, so we can just remove the forward declare from breakpoint.c) gdb/ChangeLog: 2015-02-11 Tom Tromey <tromey@redhat.com> Pedro Alves <palves@redhat.com> * breakpoint.c (base_breakpoint_ops): Delete. * dwarf2loc.c (dwarf_expr_ctx_funcs): Make extern. * elfread.c (elf_sym_fns_gdb_index, elf_sym_fns_lazy_psyms): Make extern. * guile/guile.c (guile_extension_script_ops, guile_extension_ops): Make extern. * ppcnbsd-tdep.c (ppcnbsd2_sigtramp): Make extern. * python/py-arch.c (arch_object_type): Make extern. * python/py-block.c (block_syms_iterator_object_type): Make extern. * python/py-bpevent.c (breakpoint_event_object_type): Make extern. * python/py-cmd.c (cmdpy_object_type): Make extern. * python/py-continueevent.c (continue_event_object_type) * python/py-event.h (GDBPY_NEW_EVENT_TYPE): Remove 'qual' parameter. Update all callers. * python/py-evtregistry.c (eventregistry_object_type): Make extern. * python/py-exitedevent.c (exited_event_object_type): Make extern. * python/py-finishbreakpoint.c (finish_breakpoint_object_type): Make extern. * python/py-function.c (fnpy_object_type): Make extern. * python/py-inferior.c (inferior_object_type, membuf_object_type): Make extern. * python/py-infevents.c (call_pre_event_object_type) (inferior_call_post_event_object_type). (memory_changed_event_object_type): Make extern. * python/py-infthread.c (thread_object_type): Make extern. * python/py-lazy-string.c (lazy_string_object_type): Make extern. * python/py-linetable.c (linetable_entry_object_type) (linetable_object_type, ltpy_iterator_object_type): Make extern. * python/py-newobjfileevent.c (new_objfile_event_object_type) (clear_objfiles_event_object_type): Make extern. * python/py-objfile.c (objfile_object_type): Make extern. * python/py-param.c (parmpy_object_type): Make extern. * python/py-progspace.c (pspace_object_type): Make extern. * python/py-signalevent.c (signal_event_object_type): Make extern. * python/py-symtab.c (symtab_object_type, sal_object_type): Make extern. * python/py-type.c (type_object_type, field_object_type) (type_iterator_object_type): Make extern. * python/python.c (python_extension_script_ops) (python_extension_ops): Make extern. * stap-probe.c (stap_probe_ops): Make extern.
2015-02-11 12:20:21 +01:00
extern PyTypeObject clear_objfiles_event_object_type
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object");
static PyObject *
create_new_objfile_event_object (struct objfile *objfile)
{
PyObject *objfile_event;
PyObject *py_objfile;
objfile_event = create_event_object (&new_objfile_event_object_type);
if (!objfile_event)
goto fail;
/* Note that objfile_to_objfile_object returns a borrowed reference,
so we don't need a decref here. */
py_objfile = objfile_to_objfile_object (objfile);
if (!py_objfile || evpy_add_attribute (objfile_event,
"new_objfile",
py_objfile) < 0)
goto fail;
return objfile_event;
fail:
Py_XDECREF (objfile_event);
return NULL;
}
/* Callback function which notifies observers when a new objfile event occurs.
This function will create a new Python new_objfile event object.
Return -1 if emit fails. */
int
emit_new_objfile_event (struct objfile *objfile)
{
PyObject *event;
if (evregpy_no_listeners_p (gdb_py_events.new_objfile))
return 0;
event = create_new_objfile_event_object (objfile);
if (event)
return evpy_emit_event (event, gdb_py_events.new_objfile);
return -1;
}
GDBPY_NEW_EVENT_TYPE (new_objfile,
"gdb.NewObjFileEvent",
"NewObjFileEvent",
"GDB new object file event object",
Fix redefinition errors in C++ mode In C, we can forward declare static structure instances. That doesn't work in C++ though. C++ treats these as definitions. So then the compiler complains about symbol redefinition, like: src/gdb/elfread.c:1569:29: error: redefinition of ‘const sym_fns elf_sym_fns_lazy_psyms’ src/gdb/elfread.c:53:29: error: ‘const sym_fns elf_sym_fns_lazy_psyms’ previously declared here The intent of static here is naturally to avoid making these objects visible outside the compilation unit. The equivalent in C++ would be to instead define the objects in the anonymous namespace. But given that it's desirable to leave the codebase compiling as both C and C++ for a while, this just makes the objects extern. (base_breakpoint_ops is already declared in breakpoint.h, so we can just remove the forward declare from breakpoint.c) gdb/ChangeLog: 2015-02-11 Tom Tromey <tromey@redhat.com> Pedro Alves <palves@redhat.com> * breakpoint.c (base_breakpoint_ops): Delete. * dwarf2loc.c (dwarf_expr_ctx_funcs): Make extern. * elfread.c (elf_sym_fns_gdb_index, elf_sym_fns_lazy_psyms): Make extern. * guile/guile.c (guile_extension_script_ops, guile_extension_ops): Make extern. * ppcnbsd-tdep.c (ppcnbsd2_sigtramp): Make extern. * python/py-arch.c (arch_object_type): Make extern. * python/py-block.c (block_syms_iterator_object_type): Make extern. * python/py-bpevent.c (breakpoint_event_object_type): Make extern. * python/py-cmd.c (cmdpy_object_type): Make extern. * python/py-continueevent.c (continue_event_object_type) * python/py-event.h (GDBPY_NEW_EVENT_TYPE): Remove 'qual' parameter. Update all callers. * python/py-evtregistry.c (eventregistry_object_type): Make extern. * python/py-exitedevent.c (exited_event_object_type): Make extern. * python/py-finishbreakpoint.c (finish_breakpoint_object_type): Make extern. * python/py-function.c (fnpy_object_type): Make extern. * python/py-inferior.c (inferior_object_type, membuf_object_type): Make extern. * python/py-infevents.c (call_pre_event_object_type) (inferior_call_post_event_object_type). (memory_changed_event_object_type): Make extern. * python/py-infthread.c (thread_object_type): Make extern. * python/py-lazy-string.c (lazy_string_object_type): Make extern. * python/py-linetable.c (linetable_entry_object_type) (linetable_object_type, ltpy_iterator_object_type): Make extern. * python/py-newobjfileevent.c (new_objfile_event_object_type) (clear_objfiles_event_object_type): Make extern. * python/py-objfile.c (objfile_object_type): Make extern. * python/py-param.c (parmpy_object_type): Make extern. * python/py-progspace.c (pspace_object_type): Make extern. * python/py-signalevent.c (signal_event_object_type): Make extern. * python/py-symtab.c (symtab_object_type, sal_object_type): Make extern. * python/py-type.c (type_object_type, field_object_type) (type_iterator_object_type): Make extern. * python/python.c (python_extension_script_ops) (python_extension_ops): Make extern. * stap-probe.c (stap_probe_ops): Make extern.
2015-02-11 12:20:21 +01:00
event_object_type);
/* Subroutine of emit_clear_objfiles_event to simplify it. */
static PyObject *
create_clear_objfiles_event_object (void)
{
PyObject *objfile_event;
PyObject *py_progspace;
objfile_event = create_event_object (&clear_objfiles_event_object_type);
if (!objfile_event)
goto fail;
/* Note that pspace_to_pspace_object returns a borrowed reference,
so we don't need a decref here. */
py_progspace = pspace_to_pspace_object (current_program_space);
if (!py_progspace || evpy_add_attribute (objfile_event,
"progspace",
py_progspace) < 0)
goto fail;
return objfile_event;
fail:
Py_XDECREF (objfile_event);
return NULL;
}
/* Callback function which notifies observers when the "clear objfiles"
event occurs.
This function will create a new Python clear_objfiles event object.
Return -1 if emit fails. */
int
emit_clear_objfiles_event (void)
{
PyObject *event;
if (evregpy_no_listeners_p (gdb_py_events.clear_objfiles))
return 0;
event = create_clear_objfiles_event_object ();
if (event)
return evpy_emit_event (event, gdb_py_events.clear_objfiles);
return -1;
}
GDBPY_NEW_EVENT_TYPE (clear_objfiles,
"gdb.ClearObjFilesEvent",
"ClearObjFilesEvent",
"GDB clear object files event object",
Fix redefinition errors in C++ mode In C, we can forward declare static structure instances. That doesn't work in C++ though. C++ treats these as definitions. So then the compiler complains about symbol redefinition, like: src/gdb/elfread.c:1569:29: error: redefinition of ‘const sym_fns elf_sym_fns_lazy_psyms’ src/gdb/elfread.c:53:29: error: ‘const sym_fns elf_sym_fns_lazy_psyms’ previously declared here The intent of static here is naturally to avoid making these objects visible outside the compilation unit. The equivalent in C++ would be to instead define the objects in the anonymous namespace. But given that it's desirable to leave the codebase compiling as both C and C++ for a while, this just makes the objects extern. (base_breakpoint_ops is already declared in breakpoint.h, so we can just remove the forward declare from breakpoint.c) gdb/ChangeLog: 2015-02-11 Tom Tromey <tromey@redhat.com> Pedro Alves <palves@redhat.com> * breakpoint.c (base_breakpoint_ops): Delete. * dwarf2loc.c (dwarf_expr_ctx_funcs): Make extern. * elfread.c (elf_sym_fns_gdb_index, elf_sym_fns_lazy_psyms): Make extern. * guile/guile.c (guile_extension_script_ops, guile_extension_ops): Make extern. * ppcnbsd-tdep.c (ppcnbsd2_sigtramp): Make extern. * python/py-arch.c (arch_object_type): Make extern. * python/py-block.c (block_syms_iterator_object_type): Make extern. * python/py-bpevent.c (breakpoint_event_object_type): Make extern. * python/py-cmd.c (cmdpy_object_type): Make extern. * python/py-continueevent.c (continue_event_object_type) * python/py-event.h (GDBPY_NEW_EVENT_TYPE): Remove 'qual' parameter. Update all callers. * python/py-evtregistry.c (eventregistry_object_type): Make extern. * python/py-exitedevent.c (exited_event_object_type): Make extern. * python/py-finishbreakpoint.c (finish_breakpoint_object_type): Make extern. * python/py-function.c (fnpy_object_type): Make extern. * python/py-inferior.c (inferior_object_type, membuf_object_type): Make extern. * python/py-infevents.c (call_pre_event_object_type) (inferior_call_post_event_object_type). (memory_changed_event_object_type): Make extern. * python/py-infthread.c (thread_object_type): Make extern. * python/py-lazy-string.c (lazy_string_object_type): Make extern. * python/py-linetable.c (linetable_entry_object_type) (linetable_object_type, ltpy_iterator_object_type): Make extern. * python/py-newobjfileevent.c (new_objfile_event_object_type) (clear_objfiles_event_object_type): Make extern. * python/py-objfile.c (objfile_object_type): Make extern. * python/py-param.c (parmpy_object_type): Make extern. * python/py-progspace.c (pspace_object_type): Make extern. * python/py-signalevent.c (signal_event_object_type): Make extern. * python/py-symtab.c (symtab_object_type, sal_object_type): Make extern. * python/py-type.c (type_object_type, field_object_type) (type_iterator_object_type): Make extern. * python/python.c (python_extension_script_ops) (python_extension_ops): Make extern. * stap-probe.c (stap_probe_ops): Make extern.
2015-02-11 12:20:21 +01:00
event_object_type);