Ejemplo n.º 1
0
static void 
load_preloaded(void)
{
    int i;
    int res;
    Preload* preload_p;
    Eterm module_name;
    byte* code;
    char* name;
    int length;

    if ((preload_p = sys_preloaded()) == NULL) {
	return;
    }
    i = 0;
    while ((name = preload_p[i].name) != NULL) {
	length = preload_p[i].size;
	module_name = am_atom_put(name, sys_strlen(name));
	if ((code = sys_preload_begin(&preload_p[i])) == 0)
	    erl_exit(1, "Failed to find preloaded code for module %s\n", 
		     name);
	res = erts_load_module(NULL, 0, NIL, &module_name, code, length);
	sys_preload_end(&preload_p[i]);
	if (res < 0)
	    erl_exit(1,"Failed loading preloaded module %s\n", name);
	i++;
    }
}
Ejemplo n.º 2
0
Eterm
load_module_2(BIF_ALIST_2)
{
    Eterm   reason;
    Eterm*  hp;
    int      i;
    int      sz;
    byte*    code;
    int trace_pattern_is_on;
    Binary *match_spec;
    Binary *meta_match_spec;
    struct trace_pattern_flags trace_pattern_flags;
    Eterm meta_tracer_pid;
    Eterm res;
    byte* temp_alloc = NULL;

    if (is_not_atom(BIF_ARG_1)) {
    error:
	erts_free_aligned_binary_bytes(temp_alloc);
	BIF_ERROR(BIF_P, BADARG);
    }
    if ((code = erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc)) == NULL) {
	goto error;
    }
    erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
    erts_smp_block_system(0);

    erts_export_consolidate();

    hp = HAlloc(BIF_P, 3);
    sz = binary_size(BIF_ARG_2);
    if ((i = erts_load_module(BIF_P, 0,
			      BIF_P->group_leader, &BIF_ARG_1, code, sz)) < 0) { 
	switch (i) {
	case -1: reason = am_badfile; break; 
	case -2: reason = am_nofile; break;
	case -3: reason = am_not_purged; break;
	case -4:
	    reason = am_atom_put("native_code", sizeof("native_code")-1);
	    break;
	default: reason = am_badfile; break;
	}
	res = TUPLE2(hp, am_error, reason);
	goto done;
    }

    erts_get_default_trace_pattern(&trace_pattern_is_on,
				   &match_spec,
				   &meta_match_spec,
				   &trace_pattern_flags,
				   &meta_tracer_pid);
    if (trace_pattern_is_on) {
	Eterm mfa[1];
	mfa[0] = BIF_ARG_1;
	(void) erts_set_trace_pattern(mfa, 1, 
				      match_spec, 
				      meta_match_spec,
				      1, trace_pattern_flags, 
				      meta_tracer_pid);
    }

    res = TUPLE2(hp, am_module, BIF_ARG_1);

 done:
    erts_free_aligned_binary_bytes(temp_alloc);
    erts_smp_release_system();
    erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);

    BIF_RET(res);
}
Ejemplo n.º 3
0
Eterm
load_module_2(BIF_ALIST_2)
{
    Eterm   reason;
    Eterm*  hp;
    int      i;
    int      sz;
    byte*    code;
    Eterm res;
    byte* temp_alloc = NULL;

    if (is_not_atom(BIF_ARG_1)) {
    error:
	erts_free_aligned_binary_bytes(temp_alloc);
	BIF_ERROR(BIF_P, BADARG);
    }
    if ((code = erts_get_aligned_binary_bytes(BIF_ARG_2, &temp_alloc)) == NULL) {
	goto error;
    }
    erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
    erts_smp_thr_progress_block();

    hp = HAlloc(BIF_P, 3);
    sz = binary_size(BIF_ARG_2);
    if ((i = erts_load_module(BIF_P, 0,
			      BIF_P->group_leader, &BIF_ARG_1, code, sz)) < 0) { 
	switch (i) {
	case -1: reason = am_badfile; break; 
	case -2: reason = am_nofile; break;
	case -3: reason = am_not_purged; break;
	case -4:
	    reason = am_atom_put("native_code", sizeof("native_code")-1);
	    break;
	case -5:
	    {
		/*
		 * The module contains an on_load function. The loader
		 * has loaded the module as usual, except that the
		 * export entries does not point into the module, so it
		 * is not possible to call any code in the module.
		 */

		ERTS_DECL_AM(on_load);
		reason = AM_on_load;
		break;
	    }
	default: reason = am_badfile; break;
	}
	res = TUPLE2(hp, am_error, reason);
	goto done;
    }

    set_default_trace_pattern(BIF_ARG_1);
    res = TUPLE2(hp, am_module, BIF_ARG_1);

 done:
    erts_free_aligned_binary_bytes(temp_alloc);
    erts_smp_thr_progress_unblock();
    erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);

    BIF_RET(res);
}