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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2006-2013. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
/*
* Interface functions to the dynamic linker using dl* functions.
* (No support in OSE, we use static linkage instead)
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "sys.h"
#include "erl_vm.h"
#include "global.h"
void erl_sys_ddll_init(void) {
}
/*
* Open a shared object
*/
int erts_sys_ddll_open(const char *full_name, void **handle, ErtsSysDdllError* err)
{
return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY;
}
int erts_sys_ddll_open_noext(char *dlname, void **handle, ErtsSysDdllError* err)
{
return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY;
}
/*
* Find a symbol in the shared object
*/
int erts_sys_ddll_sym2(void *handle, const char *func_name, void **function,
ErtsSysDdllError* err)
{
return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY;
}
/* XXX:PaN These two will be changed with new driver interface! */
/*
* Load the driver init function, might appear under different names depending on object arch...
*/
int erts_sys_ddll_load_driver_init(void *handle, void **function)
{
void *fn;
int res;
if ((res = erts_sys_ddll_sym2(handle, "driver_init", &fn, NULL)) != ERL_DE_NO_ERROR) {
res = erts_sys_ddll_sym2(handle, "_driver_init", &fn, NULL);
}
if (res == ERL_DE_NO_ERROR) {
*function = fn;
}
return res;
}
int erts_sys_ddll_load_nif_init(void *handle, void **function, ErtsSysDdllError* err)
{
void *fn;
int res;
if ((res = erts_sys_ddll_sym2(handle, "nif_init", &fn, err)) != ERL_DE_NO_ERROR) {
res = erts_sys_ddll_sym2(handle, "_nif_init", &fn, err);
}
if (res == ERL_DE_NO_ERROR) {
*function = fn;
}
return res;
}
/*
* Call the driver_init function, whatever it's really called, simple on unix...
*/
void *erts_sys_ddll_call_init(void *function) {
void *(*initfn)(void) = function;
return (*initfn)();
}
void *erts_sys_ddll_call_nif_init(void *function) {
return erts_sys_ddll_call_init(function);
}
/*
* Close a chared object
*/
int erts_sys_ddll_close2(void *handle, ErtsSysDdllError* err)
{
return ERL_DE_ERROR_NO_DDLL_FUNCTIONALITY;
}
/*
* Return string that describes the (current) error
*/
char *erts_sys_ddll_error(int code)
{
return "Unspecified error";
}
void erts_sys_ddll_free_error(ErtsSysDdllError* err)
{
if (err->str != NULL) {
erts_free(ERTS_ALC_T_DDLL_TMP_BUF, err->str);
}
}
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