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https://sourceware.org/git/binutils-gdb.git
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08b8a139c9
This rewrites registry.h, removing all the macros and replacing it with relatively ordinary template classes. The result is less code than the previous setup. It replaces large macros with a relatively straightforward C++ class, and now manages its own cleanup. The existing type-safe "key" class is replaced with the equivalent template class. This approach ended up requiring relatively few changes to the users of the registry code in gdb -- code using the key system just required a small change to the key's declaration. All existing users of the old C-like API are now converted to use the type-safe API. This mostly involved changing explicit deletion functions to be an operator() in a deleter class. The old "save/free" two-phase process is removed, and replaced with a single "free" phase. No existing code used both phases. The old "free" callbacks took a parameter for the enclosing container object. However, this wasn't truly needed and is removed here as well.
817 lines
22 KiB
C
817 lines
22 KiB
C
/* Debug logging for the symbol file functions for the GNU debugger, GDB.
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Copyright (C) 2013-2022 Free Software Foundation, Inc.
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Contributed by Cygnus Support, using pieces from other GDB modules.
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This file is part of GDB.
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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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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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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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/* Note: Be careful with functions that can throw errors.
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We want to see a logging message regardless of whether an error was thrown.
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This typically means printing a message before calling the real function
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and then if the function returns a result printing a message after it
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returns. */
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#include "defs.h"
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#include "gdbcmd.h"
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#include "objfiles.h"
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#include "observable.h"
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#include "source.h"
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#include "symtab.h"
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#include "symfile.h"
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#include "block.h"
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#include "filenames.h"
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/* We need to save a pointer to the real symbol functions.
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Plus, the debug versions are malloc'd because we have to NULL out the
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ones that are NULL in the real copy. */
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struct debug_sym_fns_data
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{
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const struct sym_fns *real_sf = nullptr;
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struct sym_fns debug_sf {};
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};
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/* We need to record a pointer to the real set of functions for each
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objfile. */
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static const registry<objfile>::key<debug_sym_fns_data>
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symfile_debug_objfile_data_key;
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/* If true all calls to the symfile functions are logged. */
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static bool debug_symfile = false;
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/* Return non-zero if symfile debug logging is installed. */
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static int
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symfile_debug_installed (struct objfile *objfile)
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{
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return (objfile->sf != NULL
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&& symfile_debug_objfile_data_key.get (objfile) != NULL);
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}
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/* Utility return the name to print for SYMTAB. */
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static const char *
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debug_symtab_name (struct symtab *symtab)
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{
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return symtab_to_filename_for_display (symtab);
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}
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/* See objfiles.h. */
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bool
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objfile::has_partial_symbols ()
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{
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bool retval = false;
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/* If we have not read psymbols, but we have a function capable of reading
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them, then that is an indication that they are in fact available. Without
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this function the symbols may have been already read in but they also may
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not be present in this objfile. */
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for (const auto &iter : qf)
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{
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if ((flags & OBJF_PSYMTABS_READ) == 0
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&& iter->can_lazily_read_symbols ())
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retval = true;
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else
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retval = iter->has_symbols (this);
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if (retval)
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break;
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}
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->has_symbols (%s) = %d\n",
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objfile_debug_name (this), retval);
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return retval;
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}
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/* See objfiles.h. */
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bool
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objfile::has_unexpanded_symtabs ()
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->has_unexpanded_symtabs (%s)\n",
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objfile_debug_name (this));
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bool result = false;
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for (const auto &iter : qf_require_partial_symbols ())
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{
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if (iter->has_unexpanded_symtabs (this))
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{
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result = true;
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break;
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}
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}
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->has_unexpanded_symtabs (%s) = %d\n",
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objfile_debug_name (this), (result ? 1 : 0));
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return result;
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}
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struct symtab *
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objfile::find_last_source_symtab ()
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{
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struct symtab *retval = nullptr;
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->find_last_source_symtab (%s)\n",
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objfile_debug_name (this));
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for (const auto &iter : qf_require_partial_symbols ())
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{
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retval = iter->find_last_source_symtab (this);
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if (retval != nullptr)
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break;
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}
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->find_last_source_symtab (...) = %s\n",
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retval ? debug_symtab_name (retval) : "NULL");
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return retval;
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}
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void
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objfile::forget_cached_source_info ()
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->forget_cached_source_info (%s)\n",
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objfile_debug_name (this));
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for (const auto &iter : qf_require_partial_symbols ())
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iter->forget_cached_source_info (this);
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}
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bool
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objfile::map_symtabs_matching_filename
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(const char *name, const char *real_path,
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gdb::function_view<bool (symtab *)> callback)
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->map_symtabs_matching_filename (%s, \"%s\", "
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"\"%s\", %s)\n",
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objfile_debug_name (this), name,
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real_path ? real_path : NULL,
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host_address_to_string (&callback));
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bool retval = true;
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const char *name_basename = lbasename (name);
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auto match_one_filename = [&] (const char *filename, bool basenames)
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{
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if (compare_filenames_for_search (filename, name))
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return true;
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if (basenames && FILENAME_CMP (name_basename, filename) == 0)
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return true;
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if (real_path != nullptr && IS_ABSOLUTE_PATH (filename)
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&& IS_ABSOLUTE_PATH (real_path))
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return filename_cmp (filename, real_path) == 0;
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return false;
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};
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compunit_symtab *last_made = this->compunit_symtabs;
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auto on_expansion = [&] (compunit_symtab *symtab)
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{
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/* The callback to iterate_over_some_symtabs returns false to keep
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going and true to continue, so we have to invert the result
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here, for expand_symtabs_matching. */
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bool result = !iterate_over_some_symtabs (name, real_path,
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this->compunit_symtabs,
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last_made,
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callback);
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last_made = this->compunit_symtabs;
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return result;
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};
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for (const auto &iter : qf_require_partial_symbols ())
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{
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if (!iter->expand_symtabs_matching (this,
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match_one_filename,
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nullptr,
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nullptr,
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on_expansion,
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(SEARCH_GLOBAL_BLOCK
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| SEARCH_STATIC_BLOCK),
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UNDEF_DOMAIN,
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ALL_DOMAIN))
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{
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retval = false;
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break;
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}
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}
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->map_symtabs_matching_filename (...) = %d\n",
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retval);
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/* We must re-invert the return value here to match the caller's
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expectations. */
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return !retval;
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}
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struct compunit_symtab *
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objfile::lookup_symbol (block_enum kind, const char *name, domain_enum domain)
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{
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struct compunit_symtab *retval = nullptr;
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->lookup_symbol (%s, %d, \"%s\", %s)\n",
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objfile_debug_name (this), kind, name,
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domain_name (domain));
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lookup_name_info lookup_name (name, symbol_name_match_type::FULL);
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auto search_one_symtab = [&] (compunit_symtab *stab)
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{
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struct symbol *sym, *with_opaque = NULL;
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const struct blockvector *bv = stab->blockvector ();
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const struct block *block = bv->block (kind);
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sym = block_find_symbol (block, name, domain,
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block_find_non_opaque_type_preferred,
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&with_opaque);
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/* Some caution must be observed with overloaded functions
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and methods, since the index will not contain any overload
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information (but NAME might contain it). */
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if (sym != NULL
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&& symbol_matches_search_name (sym, lookup_name))
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{
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retval = stab;
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/* Found it. */
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return false;
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}
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if (with_opaque != NULL
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&& symbol_matches_search_name (with_opaque, lookup_name))
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retval = stab;
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/* Keep looking through other psymtabs. */
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return true;
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};
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for (const auto &iter : qf_require_partial_symbols ())
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{
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if (!iter->expand_symtabs_matching (this,
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nullptr,
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&lookup_name,
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nullptr,
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search_one_symtab,
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kind == GLOBAL_BLOCK
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? SEARCH_GLOBAL_BLOCK
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: SEARCH_STATIC_BLOCK,
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domain,
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ALL_DOMAIN))
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break;
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}
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->lookup_symbol (...) = %s\n",
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retval
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? debug_symtab_name (retval->primary_filetab ())
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: "NULL");
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return retval;
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}
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void
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objfile::print_stats (bool print_bcache)
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->print_stats (%s, %d)\n",
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objfile_debug_name (this), print_bcache);
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for (const auto &iter : qf_require_partial_symbols ())
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iter->print_stats (this, print_bcache);
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}
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void
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objfile::dump ()
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->dump (%s)\n",
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objfile_debug_name (this));
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for (const auto &iter : qf)
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iter->dump (this);
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}
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void
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objfile::expand_symtabs_for_function (const char *func_name)
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->expand_symtabs_for_function (%s, \"%s\")\n",
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objfile_debug_name (this), func_name);
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lookup_name_info base_lookup (func_name, symbol_name_match_type::FULL);
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lookup_name_info lookup_name = base_lookup.make_ignore_params ();
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for (const auto &iter : qf_require_partial_symbols ())
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iter->expand_symtabs_matching (this,
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nullptr,
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&lookup_name,
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nullptr,
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nullptr,
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(SEARCH_GLOBAL_BLOCK
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| SEARCH_STATIC_BLOCK),
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VAR_DOMAIN,
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ALL_DOMAIN);
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}
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void
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objfile::expand_all_symtabs ()
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog, "qf->expand_all_symtabs (%s)\n",
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objfile_debug_name (this));
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for (const auto &iter : qf_require_partial_symbols ())
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iter->expand_all_symtabs (this);
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}
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void
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objfile::expand_symtabs_with_fullname (const char *fullname)
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->expand_symtabs_with_fullname (%s, \"%s\")\n",
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objfile_debug_name (this), fullname);
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const char *basename = lbasename (fullname);
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auto file_matcher = [&] (const char *filename, bool basenames)
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{
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return filename_cmp (basenames ? basename : fullname, filename) == 0;
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};
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for (const auto &iter : qf_require_partial_symbols ())
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iter->expand_symtabs_matching (this,
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file_matcher,
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nullptr,
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nullptr,
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nullptr,
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(SEARCH_GLOBAL_BLOCK
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| SEARCH_STATIC_BLOCK),
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UNDEF_DOMAIN,
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ALL_DOMAIN);
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}
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void
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objfile::expand_matching_symbols
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(const lookup_name_info &name, domain_enum domain,
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int global,
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symbol_compare_ftype *ordered_compare)
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->expand_matching_symbols (%s, %s, %d, %s)\n",
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objfile_debug_name (this),
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domain_name (domain), global,
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host_address_to_string (ordered_compare));
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for (const auto &iter : qf_require_partial_symbols ())
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iter->expand_matching_symbols (this, name, domain, global,
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ordered_compare);
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}
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bool
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objfile::expand_symtabs_matching
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(gdb::function_view<expand_symtabs_file_matcher_ftype> file_matcher,
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const lookup_name_info *lookup_name,
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gdb::function_view<expand_symtabs_symbol_matcher_ftype> symbol_matcher,
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gdb::function_view<expand_symtabs_exp_notify_ftype> expansion_notify,
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block_search_flags search_flags,
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domain_enum domain,
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enum search_domain kind)
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{
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/* This invariant is documented in quick-functions.h. */
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gdb_assert (lookup_name != nullptr || symbol_matcher == nullptr);
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->expand_symtabs_matching (%s, %s, %s, %s, %s)\n",
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objfile_debug_name (this),
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host_address_to_string (&file_matcher),
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host_address_to_string (&symbol_matcher),
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host_address_to_string (&expansion_notify),
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search_domain_name (kind));
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for (const auto &iter : qf_require_partial_symbols ())
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if (!iter->expand_symtabs_matching (this, file_matcher, lookup_name,
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symbol_matcher, expansion_notify,
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search_flags, domain, kind))
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return false;
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return true;
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}
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struct compunit_symtab *
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objfile::find_pc_sect_compunit_symtab (struct bound_minimal_symbol msymbol,
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CORE_ADDR pc,
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struct obj_section *section,
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int warn_if_readin)
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{
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struct compunit_symtab *retval = nullptr;
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->find_pc_sect_compunit_symtab (%s, %s, %s, %s, %d)\n",
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objfile_debug_name (this),
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host_address_to_string (msymbol.minsym),
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hex_string (pc),
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host_address_to_string (section),
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warn_if_readin);
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for (const auto &iter : qf_require_partial_symbols ())
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{
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retval = iter->find_pc_sect_compunit_symtab (this, msymbol, pc, section,
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warn_if_readin);
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if (retval != nullptr)
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break;
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}
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->find_pc_sect_compunit_symtab (...) = %s\n",
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retval
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? debug_symtab_name (retval->primary_filetab ())
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: "NULL");
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return retval;
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}
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void
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objfile::map_symbol_filenames (gdb::function_view<symbol_filename_ftype> fun,
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bool need_fullname)
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->map_symbol_filenames (%s, ..., %d)\n",
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objfile_debug_name (this),
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need_fullname);
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for (const auto &iter : qf_require_partial_symbols ())
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iter->map_symbol_filenames (this, fun, need_fullname);
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}
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struct compunit_symtab *
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objfile::find_compunit_symtab_by_address (CORE_ADDR address)
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{
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->find_compunit_symtab_by_address (%s, %s)\n",
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objfile_debug_name (this),
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hex_string (address));
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struct compunit_symtab *result = NULL;
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for (const auto &iter : qf_require_partial_symbols ())
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{
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result = iter->find_compunit_symtab_by_address (this, address);
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if (result != nullptr)
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break;
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}
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if (debug_symfile)
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gdb_printf (gdb_stdlog,
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"qf->find_compunit_symtab_by_address (...) = %s\n",
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result
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? debug_symtab_name (result->primary_filetab ())
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: "NULL");
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return result;
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}
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enum language
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objfile::lookup_global_symbol_language (const char *name,
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domain_enum domain,
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bool *symbol_found_p)
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{
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enum language result = language_unknown;
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*symbol_found_p = false;
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for (const auto &iter : qf_require_partial_symbols ())
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{
|
||
result = iter->lookup_global_symbol_language (this, name, domain,
|
||
symbol_found_p);
|
||
if (*symbol_found_p)
|
||
break;
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
void
|
||
objfile::require_partial_symbols (bool verbose)
|
||
{
|
||
if ((flags & OBJF_PSYMTABS_READ) == 0)
|
||
{
|
||
flags |= OBJF_PSYMTABS_READ;
|
||
|
||
bool printed = false;
|
||
for (const auto &iter : qf)
|
||
{
|
||
if (iter->can_lazily_read_symbols ())
|
||
{
|
||
if (verbose && !printed)
|
||
{
|
||
gdb_printf (_("Reading symbols from %s...\n"),
|
||
objfile_name (this));
|
||
printed = true;
|
||
}
|
||
iter->read_partial_symbols (this);
|
||
}
|
||
}
|
||
if (printed && !objfile_has_symbols (this))
|
||
gdb_printf (_("(No debugging symbols found in %s)\n"),
|
||
objfile_name (this));
|
||
}
|
||
}
|
||
|
||
|
||
/* Debugging version of struct sym_probe_fns. */
|
||
|
||
static const std::vector<std::unique_ptr<probe>> &
|
||
debug_sym_get_probes (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= symfile_debug_objfile_data_key.get (objfile);
|
||
|
||
const std::vector<std::unique_ptr<probe>> &retval
|
||
= debug_data->real_sf->sym_probe_fns->sym_get_probes (objfile);
|
||
|
||
gdb_printf (gdb_stdlog,
|
||
"probes->sym_get_probes (%s) = %s\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (retval.data ()));
|
||
|
||
return retval;
|
||
}
|
||
|
||
static const struct sym_probe_fns debug_sym_probe_fns =
|
||
{
|
||
debug_sym_get_probes,
|
||
};
|
||
|
||
/* Debugging version of struct sym_fns. */
|
||
|
||
static void
|
||
debug_sym_new_init (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= symfile_debug_objfile_data_key.get (objfile);
|
||
|
||
gdb_printf (gdb_stdlog, "sf->sym_new_init (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_new_init (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_sym_init (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= symfile_debug_objfile_data_key.get (objfile);
|
||
|
||
gdb_printf (gdb_stdlog, "sf->sym_init (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_init (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_sym_read (struct objfile *objfile, symfile_add_flags symfile_flags)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= symfile_debug_objfile_data_key.get (objfile);
|
||
|
||
gdb_printf (gdb_stdlog, "sf->sym_read (%s, 0x%x)\n",
|
||
objfile_debug_name (objfile), (unsigned) symfile_flags);
|
||
|
||
debug_data->real_sf->sym_read (objfile, symfile_flags);
|
||
}
|
||
|
||
static void
|
||
debug_sym_finish (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= symfile_debug_objfile_data_key.get (objfile);
|
||
|
||
gdb_printf (gdb_stdlog, "sf->sym_finish (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_finish (objfile);
|
||
}
|
||
|
||
static void
|
||
debug_sym_offsets (struct objfile *objfile,
|
||
const section_addr_info &info)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= symfile_debug_objfile_data_key.get (objfile);
|
||
|
||
gdb_printf (gdb_stdlog, "sf->sym_offsets (%s, %s)\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (&info));
|
||
|
||
debug_data->real_sf->sym_offsets (objfile, info);
|
||
}
|
||
|
||
static symfile_segment_data_up
|
||
debug_sym_segments (bfd *abfd)
|
||
{
|
||
/* This API function is annoying, it doesn't take a "this" pointer.
|
||
Fortunately it is only used in one place where we (re-)lookup the
|
||
sym_fns table to use. Thus we will never be called. */
|
||
gdb_assert_not_reached ("debug_sym_segments called");
|
||
}
|
||
|
||
static void
|
||
debug_sym_read_linetable (struct objfile *objfile)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= symfile_debug_objfile_data_key.get (objfile);
|
||
|
||
gdb_printf (gdb_stdlog, "sf->sym_read_linetable (%s)\n",
|
||
objfile_debug_name (objfile));
|
||
|
||
debug_data->real_sf->sym_read_linetable (objfile);
|
||
}
|
||
|
||
static bfd_byte *
|
||
debug_sym_relocate (struct objfile *objfile, asection *sectp, bfd_byte *buf)
|
||
{
|
||
const struct debug_sym_fns_data *debug_data
|
||
= symfile_debug_objfile_data_key.get (objfile);
|
||
bfd_byte *retval;
|
||
|
||
retval = debug_data->real_sf->sym_relocate (objfile, sectp, buf);
|
||
|
||
gdb_printf (gdb_stdlog,
|
||
"sf->sym_relocate (%s, %s, %s) = %s\n",
|
||
objfile_debug_name (objfile),
|
||
host_address_to_string (sectp),
|
||
host_address_to_string (buf),
|
||
host_address_to_string (retval));
|
||
|
||
return retval;
|
||
}
|
||
|
||
/* Template of debugging version of struct sym_fns.
|
||
A copy is made, with sym_flavour updated, and a pointer to the real table
|
||
installed in real_sf, and then a pointer to the copy is installed in the
|
||
objfile. */
|
||
|
||
static const struct sym_fns debug_sym_fns =
|
||
{
|
||
debug_sym_new_init,
|
||
debug_sym_init,
|
||
debug_sym_read,
|
||
debug_sym_finish,
|
||
debug_sym_offsets,
|
||
debug_sym_segments,
|
||
debug_sym_read_linetable,
|
||
debug_sym_relocate,
|
||
&debug_sym_probe_fns,
|
||
};
|
||
|
||
/* Install the debugging versions of the symfile functions for OBJFILE.
|
||
Do not call this if the debug versions are already installed. */
|
||
|
||
static void
|
||
install_symfile_debug_logging (struct objfile *objfile)
|
||
{
|
||
const struct sym_fns *real_sf;
|
||
struct debug_sym_fns_data *debug_data;
|
||
|
||
/* The debug versions should not already be installed. */
|
||
gdb_assert (!symfile_debug_installed (objfile));
|
||
|
||
real_sf = objfile->sf;
|
||
|
||
/* Alas we have to preserve NULL entries in REAL_SF. */
|
||
debug_data = new struct debug_sym_fns_data;
|
||
|
||
#define COPY_SF_PTR(from, to, name, func) \
|
||
do { \
|
||
if ((from)->name) \
|
||
(to)->debug_sf.name = func; \
|
||
} while (0)
|
||
|
||
COPY_SF_PTR (real_sf, debug_data, sym_new_init, debug_sym_new_init);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_init, debug_sym_init);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_read, debug_sym_read);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_finish, debug_sym_finish);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_offsets, debug_sym_offsets);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_segments, debug_sym_segments);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_read_linetable,
|
||
debug_sym_read_linetable);
|
||
COPY_SF_PTR (real_sf, debug_data, sym_relocate, debug_sym_relocate);
|
||
if (real_sf->sym_probe_fns)
|
||
debug_data->debug_sf.sym_probe_fns = &debug_sym_probe_fns;
|
||
|
||
#undef COPY_SF_PTR
|
||
|
||
debug_data->real_sf = real_sf;
|
||
symfile_debug_objfile_data_key.set (objfile, debug_data);
|
||
objfile->sf = &debug_data->debug_sf;
|
||
}
|
||
|
||
/* Uninstall the debugging versions of the symfile functions for OBJFILE.
|
||
Do not call this if the debug versions are not installed. */
|
||
|
||
static void
|
||
uninstall_symfile_debug_logging (struct objfile *objfile)
|
||
{
|
||
struct debug_sym_fns_data *debug_data;
|
||
|
||
/* The debug versions should be currently installed. */
|
||
gdb_assert (symfile_debug_installed (objfile));
|
||
|
||
debug_data = symfile_debug_objfile_data_key.get (objfile);
|
||
|
||
objfile->sf = debug_data->real_sf;
|
||
symfile_debug_objfile_data_key.clear (objfile);
|
||
}
|
||
|
||
/* Call this function to set OBJFILE->SF.
|
||
Do not set OBJFILE->SF directly. */
|
||
|
||
void
|
||
objfile_set_sym_fns (struct objfile *objfile, const struct sym_fns *sf)
|
||
{
|
||
if (symfile_debug_installed (objfile))
|
||
{
|
||
gdb_assert (debug_symfile);
|
||
/* Remove the current one, and reinstall a new one later. */
|
||
uninstall_symfile_debug_logging (objfile);
|
||
}
|
||
|
||
/* Assume debug logging is disabled. */
|
||
objfile->sf = sf;
|
||
|
||
/* Turn debug logging on if enabled. */
|
||
if (debug_symfile)
|
||
install_symfile_debug_logging (objfile);
|
||
}
|
||
|
||
static void
|
||
set_debug_symfile (const char *args, int from_tty, struct cmd_list_element *c)
|
||
{
|
||
for (struct program_space *pspace : program_spaces)
|
||
for (objfile *objfile : pspace->objfiles ())
|
||
{
|
||
if (debug_symfile)
|
||
{
|
||
if (!symfile_debug_installed (objfile))
|
||
install_symfile_debug_logging (objfile);
|
||
}
|
||
else
|
||
{
|
||
if (symfile_debug_installed (objfile))
|
||
uninstall_symfile_debug_logging (objfile);
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
show_debug_symfile (struct ui_file *file, int from_tty,
|
||
struct cmd_list_element *c, const char *value)
|
||
{
|
||
gdb_printf (file, _("Symfile debugging is %s.\n"), value);
|
||
}
|
||
|
||
void _initialize_symfile_debug ();
|
||
void
|
||
_initialize_symfile_debug ()
|
||
{
|
||
add_setshow_boolean_cmd ("symfile", no_class, &debug_symfile, _("\
|
||
Set debugging of the symfile functions."), _("\
|
||
Show debugging of the symfile functions."), _("\
|
||
When enabled, all calls to the symfile functions are logged."),
|
||
set_debug_symfile, show_debug_symfile,
|
||
&setdebuglist, &showdebuglist);
|
||
|
||
/* Note: We don't need a new-objfile observer because debug logging
|
||
will be installed when objfile init'n calls objfile_set_sym_fns. */
|
||
}
|