return false;
}
-/* Helper function for sort_search_symbols_remove_dups and qsort. Can only
- sort symbols, not minimal symbols. */
+/* Helper function for std::sort on symbol_search objects. Can only sort
+ symbols, not minimal symbols. */
int
symbol_search::compare_search_syms (const symbol_search &sym_a,
return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0;
}
+/* See symtab.h. */
+
+bool
+global_symbol_searcher::is_suitable_msymbol
+ (const enum search_domain kind, const minimal_symbol *msymbol)
+{
+ switch (MSYMBOL_TYPE (msymbol))
+ {
+ case mst_data:
+ case mst_bss:
+ case mst_file_data:
+ case mst_file_bss:
+ return kind == VARIABLES_DOMAIN;
+ case mst_text:
+ case mst_file_text:
+ case mst_solib_trampoline:
+ case mst_text_gnu_ifunc:
+ return kind == FUNCTIONS_DOMAIN;
+ default:
+ return false;
+ }
+}
+
+/* See symtab.h. */
+
+bool
+global_symbol_searcher::expand_symtabs
+ (objfile *objfile, const gdb::optional<compiled_regex> &preg) const
+{
+ enum search_domain kind = m_kind;
+ bool found_msymbol = false;
+
+ if (objfile->sf)
+ objfile->sf->qf->expand_symtabs_matching
+ (objfile,
+ [&] (const char *filename, bool basenames)
+ {
+ return file_matches (filename, filenames, basenames);
+ },
+ lookup_name_info::match_any (),
+ [&] (const char *symname)
+ {
+ return (!preg.has_value ()
+ || preg->exec (symname, 0, NULL, 0) == 0);
+ },
+ NULL,
+ kind);
+
+ /* Here, we search through the minimal symbol tables for functions and
+ variables that match, and force their symbols to be read. This is in
+ particular necessary for demangled variable names, which are no longer
+ put into the partial symbol tables. The symbol will then be found
+ during the scan of symtabs later.
+
+ For functions, find_pc_symtab should succeed if we have debug info for
+ the function, for variables we have to call
+ lookup_symbol_in_objfile_from_linkage_name to determine if the
+ variable has debug info. If the lookup fails, set found_msymbol so
+ that we will rescan to print any matching symbols without debug info.
+ We only search the objfile the msymbol came from, we no longer search
+ all objfiles. In large programs (1000s of shared libs) searching all
+ objfiles is not worth the pain. */
+ if (filenames.empty ()
+ && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN))
+ {
+ for (minimal_symbol *msymbol : objfile->msymbols ())
+ {
+ QUIT;
+
+ if (msymbol->created_by_gdb)
+ continue;
+
+ if (is_suitable_msymbol (kind, msymbol))
+ {
+ if (!preg.has_value ()
+ || preg->exec (msymbol->natural_name (), 0,
+ NULL, 0) == 0)
+ {
+ /* An important side-effect of these lookup functions is
+ to expand the symbol table if msymbol is found, later
+ in the process we will add matching symbols or
+ msymbols to the results list, and that requires that
+ the symbols tables are expanded. */
+ if (kind == FUNCTIONS_DOMAIN
+ ? (find_pc_compunit_symtab
+ (MSYMBOL_VALUE_ADDRESS (objfile, msymbol))
+ == NULL)
+ : (lookup_symbol_in_objfile_from_linkage_name
+ (objfile, msymbol->linkage_name (),
+ VAR_DOMAIN)
+ .symbol == NULL))
+ found_msymbol = true;
+ }
+ }
+ }
+ }
+
+ return found_msymbol;
+}
+
+/* See symtab.h. */
+
+void
+global_symbol_searcher::add_matching_symbols
+ (objfile *objfile,
+ const gdb::optional<compiled_regex> &preg,
+ const gdb::optional<compiled_regex> &treg,
+ std::vector<symbol_search> *results) const
+{
+ enum search_domain kind = m_kind;
+
+ /* Add matching symbols (if not already present). */
+ for (compunit_symtab *cust : objfile->compunits ())
+ {
+ const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (cust);
+
+ for (block_enum block : { GLOBAL_BLOCK, STATIC_BLOCK })
+ {
+ struct block_iterator iter;
+ struct symbol *sym;
+ const struct block *b = BLOCKVECTOR_BLOCK (bv, block);
+
+ ALL_BLOCK_SYMBOLS (b, iter, sym)
+ {
+ struct symtab *real_symtab = symbol_symtab (sym);
+
+ QUIT;
+
+ /* Check first sole REAL_SYMTAB->FILENAME. It does
+ not need to be a substring of symtab_to_fullname as
+ it may contain "./" etc. */
+ if ((file_matches (real_symtab->filename, filenames, false)
+ || ((basenames_may_differ
+ || file_matches (lbasename (real_symtab->filename),
+ filenames, true))
+ && file_matches (symtab_to_fullname (real_symtab),
+ filenames, false)))
+ && ((!preg.has_value ()
+ || preg->exec (sym->natural_name (), 0,
+ NULL, 0) == 0)
+ && ((kind == VARIABLES_DOMAIN
+ && SYMBOL_CLASS (sym) != LOC_TYPEDEF
+ && SYMBOL_CLASS (sym) != LOC_UNRESOLVED
+ && SYMBOL_CLASS (sym) != LOC_BLOCK
+ /* LOC_CONST can be used for more than
+ just enums, e.g., c++ static const
+ members. We only want to skip enums
+ here. */
+ && !(SYMBOL_CLASS (sym) == LOC_CONST
+ && (TYPE_CODE (SYMBOL_TYPE (sym))
+ == TYPE_CODE_ENUM))
+ && (!treg.has_value ()
+ || treg_matches_sym_type_name (*treg, sym)))
+ || (kind == FUNCTIONS_DOMAIN
+ && SYMBOL_CLASS (sym) == LOC_BLOCK
+ && (!treg.has_value ()
+ || treg_matches_sym_type_name (*treg,
+ sym)))
+ || (kind == TYPES_DOMAIN
+ && SYMBOL_CLASS (sym) == LOC_TYPEDEF
+ && SYMBOL_DOMAIN (sym) != MODULE_DOMAIN)
+ || (kind == MODULES_DOMAIN
+ && SYMBOL_DOMAIN (sym) == MODULE_DOMAIN
+ && SYMBOL_LINE (sym) != 0))))
+ {
+ /* Matching msymbol, add it to the results list. */
+ results->emplace_back (block, sym);
+ }
+ }
+ }
+ }
+}
+
+/* See symtab.h. */
+
+void
+global_symbol_searcher::add_matching_msymbols
+ (objfile *objfile, const gdb::optional<compiled_regex> &preg,
+ std::vector<symbol_search> *results) const
+{
+ enum search_domain kind = m_kind;
+
+ for (minimal_symbol *msymbol : objfile->msymbols ())
+ {
+ QUIT;
+
+ if (msymbol->created_by_gdb)
+ continue;
+
+ if (is_suitable_msymbol (kind, msymbol))
+ {
+ if (!preg.has_value ()
+ || preg->exec (msymbol->natural_name (), 0,
+ NULL, 0) == 0)
+ {
+ /* For functions we can do a quick check of whether the
+ symbol might be found via find_pc_symtab. */
+ if (kind != FUNCTIONS_DOMAIN
+ || (find_pc_compunit_symtab
+ (MSYMBOL_VALUE_ADDRESS (objfile, msymbol))
+ == NULL))
+ {
+ if (lookup_symbol_in_objfile_from_linkage_name
+ (objfile, msymbol->linkage_name (),
+ VAR_DOMAIN).symbol == NULL)
+ {
+ /* Matching msymbol, add it to the results list. */
+ results->emplace_back (GLOBAL_BLOCK, msymbol, objfile);
+ }
+ }
+ }
+ }
+ }
+}
/* Sort the symbols in RESULT and remove duplicates. */
std::vector<symbol_search>
global_symbol_searcher::search () const
{
- const struct blockvector *bv;
- const struct block *b;
- int i = 0;
- struct block_iterator iter;
- struct symbol *sym;
- int found_misc = 0;
- static const enum minimal_symbol_type types[]
- = {mst_data, mst_text, mst_unknown};
- static const enum minimal_symbol_type types2[]
- = {mst_bss, mst_file_text, mst_unknown};
- static const enum minimal_symbol_type types3[]
- = {mst_file_data, mst_solib_trampoline, mst_unknown};
- static const enum minimal_symbol_type types4[]
- = {mst_file_bss, mst_text_gnu_ifunc, mst_unknown};
- enum minimal_symbol_type ourtype;
- enum minimal_symbol_type ourtype2;
- enum minimal_symbol_type ourtype3;
- enum minimal_symbol_type ourtype4;
- std::vector<symbol_search> result;
gdb::optional<compiled_regex> preg;
gdb::optional<compiled_regex> treg;
gdb_assert (m_kind != ALL_DOMAIN);
- ourtype = types[m_kind];
- ourtype2 = types2[m_kind];
- ourtype3 = types3[m_kind];
- ourtype4 = types4[m_kind];
-
if (m_symbol_name_regexp != NULL)
{
const char *symbol_name_regexp = m_symbol_name_regexp;
_("Invalid regexp"));
}
- /* Search through the partial symtabs *first* for all symbols matching
- the m_symbol_name_regexp (in preg). That way we don't have to
- reproduce all of the machinery below. */
- expand_symtabs_matching ([&] (const char *filename, bool basenames)
- {
- return file_matches (filename, filenames,
- basenames);
- },
- lookup_name_info::match_any (),
- [&] (const char *symname)
- {
- return (!preg.has_value ()
- || preg->exec (symname,
- 0, NULL, 0) == 0);
- },
- NULL,
- m_kind);
-
- /* Here, we search through the minimal symbol tables for functions
- and variables that match, and force their symbols to be read.
- This is in particular necessary for demangled variable names,
- which are no longer put into the partial symbol tables.
- The symbol will then be found during the scan of symtabs below.
-
- For functions, find_pc_symtab should succeed if we have debug info
- for the function, for variables we have to call
- lookup_symbol_in_objfile_from_linkage_name to determine if the variable
- has debug info.
- If the lookup fails, set found_misc so that we will rescan to print
- any matching symbols without debug info.
- We only search the objfile the msymbol came from, we no longer search
- all objfiles. In large programs (1000s of shared libs) searching all
- objfiles is not worth the pain. */
-
- if (filenames.empty () && (m_kind == VARIABLES_DOMAIN
- || m_kind == FUNCTIONS_DOMAIN))
- {
- for (objfile *objfile : current_program_space->objfiles ())
- {
- for (minimal_symbol *msymbol : objfile->msymbols ())
- {
- QUIT;
-
- if (msymbol->created_by_gdb)
- continue;
-
- if (MSYMBOL_TYPE (msymbol) == ourtype
- || MSYMBOL_TYPE (msymbol) == ourtype2
- || MSYMBOL_TYPE (msymbol) == ourtype3
- || MSYMBOL_TYPE (msymbol) == ourtype4)
- {
- if (!preg.has_value ()
- || preg->exec (msymbol->natural_name (), 0,
- NULL, 0) == 0)
- {
- /* Note: An important side-effect of these
- lookup functions is to expand the symbol
- table if msymbol is found, for the benefit of
- the next loop on compunits. */
- if (m_kind == FUNCTIONS_DOMAIN
- ? (find_pc_compunit_symtab
- (MSYMBOL_VALUE_ADDRESS (objfile, msymbol))
- == NULL)
- : (lookup_symbol_in_objfile_from_linkage_name
- (objfile, msymbol->linkage_name (), VAR_DOMAIN)
- .symbol == NULL))
- found_misc = 1;
- }
- }
- }
- }
- }
-
+ bool found_msymbol = false;
+ std::vector<symbol_search> result;
for (objfile *objfile : current_program_space->objfiles ())
{
- for (compunit_symtab *cust : objfile->compunits ())
- {
- bv = COMPUNIT_BLOCKVECTOR (cust);
- for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
- {
- b = BLOCKVECTOR_BLOCK (bv, i);
- ALL_BLOCK_SYMBOLS (b, iter, sym)
- {
- struct symtab *real_symtab = symbol_symtab (sym);
-
- QUIT;
-
- /* Check first sole REAL_SYMTAB->FILENAME. It does
- not need to be a substring of symtab_to_fullname as
- it may contain "./" etc. */
- if ((file_matches (real_symtab->filename, filenames, false)
- || ((basenames_may_differ
- || file_matches (lbasename (real_symtab->filename),
- filenames, true))
- && file_matches (symtab_to_fullname (real_symtab),
- filenames, false)))
- && ((!preg.has_value ()
- || preg->exec (sym->natural_name (), 0,
- NULL, 0) == 0)
- && ((m_kind == VARIABLES_DOMAIN
- && SYMBOL_CLASS (sym) != LOC_TYPEDEF
- && SYMBOL_CLASS (sym) != LOC_UNRESOLVED
- && SYMBOL_CLASS (sym) != LOC_BLOCK
- /* LOC_CONST can be used for more than
- just enums, e.g., c++ static const
- members. We only want to skip enums
- here. */
- && !(SYMBOL_CLASS (sym) == LOC_CONST
- && (TYPE_CODE (SYMBOL_TYPE (sym))
- == TYPE_CODE_ENUM))
- && (!treg.has_value ()
- || treg_matches_sym_type_name (*treg, sym)))
- || (m_kind == FUNCTIONS_DOMAIN
- && SYMBOL_CLASS (sym) == LOC_BLOCK
- && (!treg.has_value ()
- || treg_matches_sym_type_name (*treg,
- sym)))
- || (m_kind == TYPES_DOMAIN
- && SYMBOL_CLASS (sym) == LOC_TYPEDEF
- && SYMBOL_DOMAIN (sym) != MODULE_DOMAIN)
- || (m_kind == MODULES_DOMAIN
- && SYMBOL_DOMAIN (sym) == MODULE_DOMAIN
- && SYMBOL_LINE (sym) != 0))))
- {
- /* match */
- result.emplace_back (i, sym);
- }
- }
- }
- }
+ /* Expand symtabs within objfile that possibly contain matching
+ symbols. */
+ found_msymbol |= expand_symtabs (objfile, preg);
+
+ /* Find matching symbols within OBJFILE and add them in to the RESULT
+ vector. */
+ add_matching_symbols (objfile, preg, treg, &result);
}
if (!result.empty ())
sort_search_symbols_remove_dups (&result);
/* If there are no debug symbols, then add matching minsyms. But if the
- user wants to see symbols matching a type m_symbol_type_regexp, then
- never give a minimal symbol, as we assume that a minimal symbol does
- not have a type. */
-
- if ((found_misc || (filenames.empty () && m_kind != FUNCTIONS_DOMAIN))
+ user wants to see symbols matching a type regexp, then never give a
+ minimal symbol, as we assume that a minimal symbol does not have a
+ type. */
+ if ((found_msymbol || (filenames.empty () && m_kind == VARIABLES_DOMAIN))
&& !m_exclude_minsyms
&& !treg.has_value ())
{
+ gdb_assert (m_kind == VARIABLES_DOMAIN || m_kind == FUNCTIONS_DOMAIN);
for (objfile *objfile : current_program_space->objfiles ())
- {
- for (minimal_symbol *msymbol : objfile->msymbols ())
- {
- QUIT;
-
- if (msymbol->created_by_gdb)
- continue;
-
- if (MSYMBOL_TYPE (msymbol) == ourtype
- || MSYMBOL_TYPE (msymbol) == ourtype2
- || MSYMBOL_TYPE (msymbol) == ourtype3
- || MSYMBOL_TYPE (msymbol) == ourtype4)
- {
- if (!preg.has_value ()
- || preg->exec (msymbol->natural_name (), 0,
- NULL, 0) == 0)
- {
- /* For functions we can do a quick check of whether the
- symbol might be found via find_pc_symtab. */
- if (m_kind != FUNCTIONS_DOMAIN
- || (find_pc_compunit_symtab
- (MSYMBOL_VALUE_ADDRESS (objfile, msymbol))
- == NULL))
- {
- if (lookup_symbol_in_objfile_from_linkage_name
- (objfile, msymbol->linkage_name (), VAR_DOMAIN)
- .symbol == NULL)
- {
- /* match */
- result.emplace_back (i, msymbol, objfile);
- }
- }
- }
- }
- }
- }
+ add_matching_msymbols (objfile, preg, &result);
}
return result;
projects / deliverable / binutils-gdb.git / commitdiff
