Color reclamation for heap memory coloring scheme in PIPE tagged-memory architecture
Name
1145123236-MIT.pdf
Size
581.42 KB
Format
Adobe PDF
Checksum (MD5)
9bf462343648e3cec2f1e39251fc360a
Author(s)
Li, Jiahao.
Advisor(s)
Howard E. Shrobe.
Date Issued
2019
Publisher
Massachusetts Institute of Technology
Abstract
Memory safety violations remain a significant hurdle as people try to secure computer software. The PIPE project proposed an approach to securing software by tagging memory and registers with color tags and defining policies in terms of the tags to disallow instructions violating memory safety. However, the PIPE project did not include a scheme for reclaiming and reusing allocated color tags, thus resulting in issues including color wrap-arounds. This thesis proposes a scheme for reclaiming and reusing color tags within the PIPE tagged-memory architecture. The proposed scheme is then evaluated on a combination of synthetic microbenchmarks and real-world allocation trace replays. Evaluation results show that the reclaimer can effectively reclaim colors in all cases, and in some cases can also improve performance by increasing rule cache hit rate.
Description
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references (pages 65-68).
Subjects
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.
Persistent DSpace Link
