mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-30 00:11:59 +00:00
105 lines
2.7 KiB
Go
105 lines
2.7 KiB
Go
/**
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# Copyright (c) NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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**/
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package cuda
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import (
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"path/filepath"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
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"github.com/sirupsen/logrus"
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)
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type cudaLocator struct {
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logger *logrus.Logger
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driverRoot string
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}
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// Options is a function that configures a cudaLocator.
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type Options func(*cudaLocator)
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// WithLogger is an option that configures the logger used by the locator.
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func WithLogger(logger *logrus.Logger) Options {
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return func(c *cudaLocator) {
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c.logger = logger
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}
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}
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// WithDriverRoot is an option that configures the driver root used by the locator.
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func WithDriverRoot(driverRoot string) Options {
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return func(c *cudaLocator) {
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c.driverRoot = driverRoot
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}
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}
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// New creates a new CUDA library locator.
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func New(opts ...Options) lookup.Locator {
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c := &cudaLocator{}
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for _, opt := range opts {
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opt(c)
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}
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if c.logger == nil {
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c.logger = logrus.StandardLogger()
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}
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if c.driverRoot == "" {
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c.driverRoot = "/"
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}
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return c
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}
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// Locate returns the path to the libcuda.so.RMVERSION file.
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// libcuda.so is prefixed to the specified pattern.
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func (l *cudaLocator) Locate(pattern string) ([]string, error) {
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ldcacheLocator, err := lookup.NewLibraryLocator(
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l.logger,
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l.driverRoot,
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)
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if err != nil {
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l.logger.Debugf("Failed to create LDCache locator: %v", err)
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}
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fullPattern := "libcuda.so" + pattern
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candidates, err := ldcacheLocator.Locate("libcuda.so")
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if err == nil {
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for _, c := range candidates {
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if match, err := filepath.Match(fullPattern, filepath.Base(c)); err != nil || !match {
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l.logger.Debugf("Skipping non-matching candidate %v: %v", c, err)
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continue
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}
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return []string{c}, nil
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}
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}
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l.logger.Debugf("Could not locate %q in LDCache: Checking predefined library paths.", pattern)
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pathLocator := lookup.NewFileLocator(
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lookup.WithLogger(l.logger),
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lookup.WithRoot(l.driverRoot),
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lookup.WithSearchPaths(
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"/usr/lib64",
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"/usr/lib/x86_64-linux-gnu",
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"/usr/lib/aarch64-linux-gnu",
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"/usr/lib/x86_64-linux-gnu/nvidia/current",
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"/usr/lib/aarch64-linux-gnu/nvidia/current",
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),
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lookup.WithCount(1),
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)
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return pathLocator.Locate(fullPattern)
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}
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