I add the following code in parser.c to replace htab:
…
struct gimple_symtab_hasher : ggc_cache_hasher<struct gimple_symtab_entry_def *>
{
/* Return the hash value of the declaration name of a gimple_symtab_entry_def
object pointed by ENTRY. */
static hashval_t hash(struct gimple_symtab_entry_def *base){return
IDENTIFIER_HASH_VALUE(base->id);}
/* Returns non-zero if ENTRY1 and ENTRY2 point to gimple_symtab_entry_def
objects corresponding to the same declaration. */
static bool equal (const struct gimple_symtab_entry_def *base1, const struct
gimple_symtab_entry_def *base2){return base1->id == base2->id;}
static void
handle_cache_entry(struct gimple_symtab_entry_def *&m)
{
extern void gt_ggc_mx (struct gimple_symtab_entry_def *&);
if (m == HTAB_EMPTY_ENTRY || m == HTAB_DELETED_ENTRY)
return;
else if (ggc_marked_p (m->id))
gt_ggc_mx (m);
else
m = static_cast<struct gimple_symtab_entry_def *> (HTAB_DELETED_ENTRY);
}
};
/* Gimple symbol table. */
static GTY((cache)) hash_table<gimple_symtab_hasher> *gimple_symtab;
…
But I got undefined symbols when compiling it:
…
Undefined symbols for architecture x86_64:
"gt_ggc_mx(gimple_symtab_entry_def*&)", referenced from:
gt_clear_caches_gt_gimple_parser_h() in parser.o
"gt_pch_nx(gimple_symtab_entry_def*&)", referenced from:
gt_pch_nx_hash_table_gimple_symtab_hasher_(void*) in parser.o
"_c_global_trees", referenced from:
gimple_main() in parser.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status
make[3]: *** [gimple1] Error 1
make[2]: *** [all-stage2-gcc] Error 2
make[1]: *** [stage2-bubble] Error 2
make: *** [all] Error 2
Could someone tell me how to fix this?
—
Regards,
Yinsong
>
