Files
mpp/osal/mpp_runtime.cpp
Herman Chen 2fc024529e [osal]: add environment detection function
1. add software runtime detection
2. add hardware platform detection

Change-Id: I75736ae85130325029023d948e4d756e27953af8
Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
2016-11-08 18:22:29 +08:00

44 lines
1.0 KiB
C++

/*
* Copyright 2015 Rockchip Electronics Co. LTD
*
* 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.
*/
#ifdef RKPLATFORM
#include <dlfcn.h>
#endif
#include "mpp_runtime.h"
static func_mmap64 mpp_rt_mmap64 = NULL;
func_mmap64 mpp_rt_get_mmap64()
{
#ifdef RKPLATFORM
static RK_U32 once = 1;
if (once) {
void *libc_hdl = dlopen("libc", RTLD_LAZY);
if (libc_hdl) {
mpp_rt_mmap64 = (func_mmap64)dlsym(libc_hdl, "mmap64");
dlclose(libc_hdl);
}
once = 0;
}
#endif
return mpp_rt_mmap64;
}