Function malloc_init_hard_a0_locked

BeefRT/JEMalloc/src/jemalloc.c:1789–1911

}

static bool
malloc_init_hard_a0_locked() {
	malloc_initializer = INITIALIZER;

	JEMALLOC_DIAGNOSTIC_PUSH
	JEMALLOC_DIAGNOSTIC_IGNORE_MISSING_STRUCT_FIELD_INITIALIZERS
	sc_data_t sc_data = {0};
	JEMALLOC_DIAGNOSTIC_POP

	/*
	 * Ordering here is somewhat tricky; we need sc_boot() first, since that
	 * determines what the size classes will be, and then
	 * malloc_conf_init(), since any slab size tweaking will need to be done
	 * before sz_boot and bin_info_boot, which assume that the values they
	 * read out of sc_data_global are final.
	 */
	sc_boot(&sc_data);
	unsigned bin_shard_sizes[SC_NBINS];
	bin_shard_sizes_boot(bin_shard_sizes);
	/*
	 * prof_boot0 only initializes opt_prof_prefix.  We need to do it before
	 * we parse malloc_conf options, in case malloc_conf parsing overwrites
	 * it.
	 */
	if (config_prof) {
		prof_boot0();
	}
	malloc_conf_init(&sc_data, bin_shard_sizes);
	san_init(opt_lg_san_uaf_align);
	sz_boot(&sc_data, opt_cache_oblivious);
	bin_info_boot(&sc_data, bin_shard_sizes);

	if (opt_stats_print) {
		/* Print statistics at exit. */
		if (atexit(stats_print_atexit) != 0) {
			malloc_write("<jemalloc>: Error in atexit()\n");
			if (opt_abort) {
				abort();
			}
		}
	}

	if (stats_boot()) {
		return true;
	}
	if (pages_boot()) {
		return true;
	}
	if (base_boot(TSDN_NULL)) {
		return true;
	}
	/* emap_global is static, hence zeroed. */
	if (emap_init(&arena_emap_global, b0get(), /* zeroed */ true)) {
		return true;
	}
	if (extent_boot()) {
		return true;
	}