#include "symtab_asm.h"

static u32_t hash_func(const symasm_entry_t* key) {
    return rt_strhash(key->name);
}

static int cmp_func(const symasm_entry_t* k1, const symasm_entry_t* k2) {
    return rt_strcmp(k1->name, k2->name);
}

void init_symtab_asm(symtab_asm_t* symtab) {
    init_hashtable(&symtab->symtab);
    symtab->symtab.hash_func = (u32_t(*)(const void*))hash_func;
    symtab->symtab.key_cmp = (int(*)(const void*, const void*))cmp_func;
}

void symtab_asm_put(symtab_asm_t* symtab, symasm_entry_t* _entry, u32_t address) {
    // FIXME maybe memory leak
    u32_t* addr = salloc_alloc(sizeof(u32_t));
    if (addr == NULL) {
        LOG_FATAL("salloc_alloc failure");
    }
    symasm_entry_t* entry = salloc_alloc(sizeof(symasm_entry_t));
    if (entry == NULL) LOG_FATAL("malloc failure");
    *entry = *_entry;
    *addr = address;
    void* ret = hashtable_set(&symtab->symtab, entry, addr);
    if (ret != NULL) {
        LOG_ERROR("Symbol %s already exists", entry->name);
    }
}

u32_t* symtab_asm_get(symtab_asm_t* symtab, symasm_entry_t* entry) {
    u32_t* addr = hashtable_get(&symtab->symtab, entry);
    return addr;
}

void symtab_asm_destroy(symtab_asm_t* symtab) {
    hashtable_destory(&symtab->symtab);
}