Annotation of wikisrc/projects/project/secureplt.mdwn, revision 1.2

1.1       jmmv        1: [[!template id=project
                      2: 
                      3: title="Secure-PLT - supporting new PLT formats on alpha"
                      4: 
                      5: contact="""
                      6: [tech-userlevel](mailto:tech-userlevel@NetBSD.org)
                      7: """
                      8: 
                      9: mentors="""
                     10: [Christos Zoulas](mailto:christos@NetBSD.org)
                     11: """
                     12: 
1.2     ! jmmv       13: category="userland"
        !            14: difficulty="medium"
1.1       jmmv       15: duration="3 months"
                     16: 
                     17: description="""
                     18: Currently kernels with options PAX_MPROTECT can not execute dynamically linked binaries on most RISC architectures, because the PLT format defined by the ABI of these architectures uses self-modifying code.
                     19: 
                     20: New binutils versions have introduced a different PLT format (enabled with --secureplt) for alpha and powerpc.
                     21: 
                     22: This project (for alpha) is to add support for the new PLT formats introduced in binutils 2.17 and gcc4.1 This will require changes to the dynamic loader (ld.elf_so), various assembly headers, and library files.
                     23: 
                     24: Support for both the old and new formats in the same invocation will be required.
                     25: 
                     26: For all architectures we can improve security by implementing [relro](http://tk-blog.blogspot.com/2009/02/relro-not-so-well-known-memory.html).
                     27: """
                     28: ]]
                     29: 
                     30: [[!tag gsoc]]

CVSweb for NetBSD wikisrc <wikimaster@NetBSD.org> software: FreeBSD-CVSweb