Poag, Charis
efb37d89bc
Changes:
- Now load libdrm/libdrm_amdgpu dynamically
Change-Id: I49fb1f3540b3235a25370f7cfcfb9778db34c2a5
Signed-off-by: Charis Poag <Charis.Poag@amd.com>
[ROCm/rocm_smi_lib commit: ce405476ca]
75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
/*
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* Copyright (c) Advanced Micro Devices, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <iostream>
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#include "rocm_smi/rocm_smi_lib_loader.h"
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namespace amd {
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namespace smi {
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ROCmSmiLibraryLoader::ROCmSmiLibraryLoader(): libHandler_(nullptr) {
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}
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rsmi_status_t ROCmSmiLibraryLoader::load(const char* filename) {
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if (filename == nullptr) {
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return RSMI_STATUS_FAIL_LOAD_MODULE;
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}
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if (libHandler_ || library_loaded_) {
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unload();
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}
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std::lock_guard<std::mutex> guard(library_mutex_);
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// check if already loaded, return success if it is
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// dlopen(filename, RTLD_NOLOAD) == null only IFF library is not loaded
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void* isLibOpen = dlopen(filename, RTLD_NOLOAD);
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if (isLibOpen == nullptr) {
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libHandler_ = dlopen(filename, RTLD_LAZY);
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if (!libHandler_) {
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char* error = dlerror();
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std::cerr << "Fail to open " << filename <<": " << error
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<< std::endl;
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return RSMI_STATUS_FAIL_LOAD_MODULE;
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}
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}
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library_loaded_ = true;
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return RSMI_STATUS_SUCCESS;
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}
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rsmi_status_t ROCmSmiLibraryLoader::unload() {
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std::lock_guard<std::mutex> guard(library_mutex_);
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if (libHandler_) {
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dlclose(libHandler_);
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libHandler_ = nullptr;
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library_loaded_ = false;
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}
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return RSMI_STATUS_SUCCESS;
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}
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ROCmSmiLibraryLoader::~ROCmSmiLibraryLoader() {
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unload();
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}
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} // namespace smi
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} // namespace amd
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