diff options
Diffstat (limited to 'gdb/gdb_bfd.c')
| -rw-r--r-- | gdb/gdb_bfd.c | 61 |
1 files changed, 57 insertions, 4 deletions
diff --git a/gdb/gdb_bfd.c b/gdb/gdb_bfd.c index 8380c53..2e477eb 100644 --- a/gdb/gdb_bfd.c +++ b/gdb/gdb_bfd.c @@ -1,6 +1,6 @@ /* Definitions for BFD wrappers used by GDB. - Copyright (C) 2011-2024 Free Software Foundation, Inc. + Copyright (C) 2011-2025 Free Software Foundation, Inc. This file is part of GDB. @@ -143,6 +143,13 @@ struct gdb_bfd_data /* Table of all the bfds this bfd has included. */ std::vector<gdb_bfd_ref_ptr> included_bfds; + /* This is used by gdb_bfd_canonicalize_symtab to hold the symbols + returned by canonicalization. */ + std::optional<gdb::def_vector<asymbol *>> symbol_table; + /* If an error occurred while canonicalizing the symtab, this holds + the error message. */ + std::string symbol_error; + /* The registry. */ registry<bfd> registry_fields; @@ -1177,6 +1184,54 @@ gdb_bfd_errmsg (bfd_error_type error_tag, char **matching) return ret; } +/* See gdb_bfd.h. */ + +gdb::array_view<asymbol *> +gdb_bfd_canonicalize_symtab (bfd *abfd, bool should_throw) +{ + struct gdb_bfd_data *gdata = (struct gdb_bfd_data *) bfd_usrdata (abfd); + + if (!gdata->symbol_table.has_value ()) + { + /* Ensure it exists. */ + gdb::def_vector<asymbol *> &symbol_table + = gdata->symbol_table.emplace (); + + long storage_needed = bfd_get_symtab_upper_bound (abfd); + if (storage_needed < 0) + gdata->symbol_error = bfd_errmsg (bfd_get_error ()); + else if (storage_needed > 0) + { + symbol_table.resize (storage_needed / sizeof (asymbol *)); + long number_of_symbols + = bfd_canonicalize_symtab (abfd, symbol_table.data ()); + if (number_of_symbols < 0) + { + symbol_table.clear (); + gdata->symbol_error = bfd_errmsg (bfd_get_error ()); + } + } + } + + if (!gdata->symbol_error.empty ()) + { + if (should_throw) + error (_("Cannot parse symbols of \"%s\": %s"), + bfd_get_filename (abfd), gdata->symbol_error.c_str ()); + return {}; + } + + gdb::def_vector<asymbol *> &symbol_table = *gdata->symbol_table; + if (symbol_table.empty ()) + return {}; + + /* bfd_canonicalize_symtab adds a trailing NULL, but don't include + this in the array view. */ + gdb_assert (symbol_table.back () == nullptr); + return gdb::make_array_view (symbol_table.data (), + symbol_table.size () - 1); +} + /* Implement the 'maint info bfd' command. */ static void @@ -1291,9 +1346,7 @@ gdb_bfd_init () error (_("fatal error: libbfd ABI mismatch")); } -void _initialize_gdb_bfd (); -void -_initialize_gdb_bfd () +INIT_GDB_FILE (gdb_bfd) { add_cmd ("bfds", class_maintenance, maintenance_info_bfds, _("\ List the BFDs that are currently open."), |