diff options
| -rw-r--r-- | gdb/ada-lang.c | 96 |
1 files changed, 42 insertions, 54 deletions
diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c index 9c6b514..3f5e707 100644 --- a/gdb/ada-lang.c +++ b/gdb/ada-lang.c @@ -36,7 +36,7 @@ #include "objfiles.h" #include "breakpoint.h" #include "gdbcore.h" -#include "hashtab.h" +#include "gdbsupport/unordered_set.h" #include "gdbsupport/gdb_obstack.h" #include "ada-lang.h" #include "completer.h" @@ -350,56 +350,58 @@ struct cache_entry_search { const char *name; domain_search_flags domain; +}; + +/* Hash function for cache entry. */ + +struct cache_entry_hash +{ + using is_transparent = void; + using is_avalanching = void; - hashval_t hash () const + /* This implementation works for both cache_entry and + cache_entry_search. */ + template<typename T> + uint64_t operator() (const T &entry) const noexcept { - /* This must agree with hash_cache_entry, below. */ - return htab_hash_string (name); + return ankerl::unordered_dense::hash<std::string_view> () (entry.name); } }; -/* Hash function for cache_entry. */ +/* Equality function for cache entry. */ -static hashval_t -hash_cache_entry (const void *v) +struct cache_entry_eq { - const cache_entry *entry = (const cache_entry *) v; - return htab_hash_string (entry->name.c_str ()); -} - -/* Equality function for cache_entry. */ + using is_transparent = void; -static int -eq_cache_entry (const void *a, const void *b) -{ - const cache_entry *entrya = (const cache_entry *) a; - const cache_entry_search *entryb = (const cache_entry_search *) b; + /* This implementation works for both cache_entry and + cache_entry_search. */ + template<typename T> + bool operator() (const T &lhs, const cache_entry &rhs) const noexcept + { + return lhs.domain == rhs.domain && lhs.name == rhs.name; + } +}; - return entrya->domain == entryb->domain && entrya->name == entryb->name; -} +using cache_entry_set + = gdb::unordered_set<cache_entry, cache_entry_hash, cache_entry_eq>; /* Key to our per-program-space data. */ -static const registry<program_space>::key<htab, htab_deleter> +static const registry<program_space>::key<cache_entry_set> ada_pspace_data_handle; -/* Return this module's data for the given program space (PSPACE). - If not is found, add a zero'ed one now. - - This function always returns a valid object. */ +/* Return this module's data for the given program space (PSPACE). If + not is found, one is created. This function always returns a valid + object. */ -static htab_t +static cache_entry_set & get_ada_pspace_data (struct program_space *pspace) { - htab_t data = ada_pspace_data_handle.get (pspace); + cache_entry_set *data = ada_pspace_data_handle.get (pspace); if (data == nullptr) - { - data = htab_create_alloc (10, hash_cache_entry, eq_cache_entry, - htab_delete_entry<cache_entry>, - xcalloc, xfree); - ada_pspace_data_handle.set (pspace, data); - } + data = ada_pspace_data_handle.emplace (pspace); - return data; + return *data; } /* Utilities */ @@ -4690,19 +4692,18 @@ static int lookup_cached_symbol (const char *name, domain_search_flags domain, struct symbol **sym, const struct block **block) { - htab_t tab = get_ada_pspace_data (current_program_space); + cache_entry_set &htab = get_ada_pspace_data (current_program_space); cache_entry_search search; search.name = name; search.domain = domain; - cache_entry *e = (cache_entry *) htab_find_with_hash (tab, &search, - search.hash ()); - if (e == nullptr) + auto iter = htab.find (search); + if (iter == htab.end ()) return 0; if (sym != nullptr) - *sym = e->sym; + *sym = iter->sym; if (block != nullptr) - *block = e->block; + *block = iter->block; return 1; } @@ -4730,21 +4731,8 @@ cache_symbol (const char *name, domain_search_flags domain, return; } - htab_t tab = get_ada_pspace_data (current_program_space); - cache_entry_search search; - search.name = name; - search.domain = domain; - - void **slot = htab_find_slot_with_hash (tab, &search, - search.hash (), INSERT); - - cache_entry *e = new cache_entry; - e->name = name; - e->domain = domain; - e->sym = sym; - e->block = block; - - *slot = e; + cache_entry_set &tab = get_ada_pspace_data (current_program_space); + tab.insert (cache_entry {name, domain, sym, block}); } /* Symbol Lookup */ |