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I built a (research) library a few years ago to rewrite ELF binaries; our research projects ran into a lot of limitations with doing incremental patches to a binary (ELF has a lot of redundant representations of the same data). For us, parsing the binary into a normalized representation, modifying that, and re-serializing worked — we could make more intrusive changes to the binary, and (almost? I don’t recall anything breaking) everything in the Debian repos still ran after the binaries has been rewritten.
I expect the library is now woefully out of date, and documentation is mostly in the form of conference talk slides:
https://github.com/jbangert/mithril
there’s also https://github.com/aclements/libelfin (parsing only, supports dwarf); https://github.com/bx/elf-bf-tools (Turing machine inside elf relocations) and of course the “olg guard” of ELF reversing tools ERESI/elfsh (website seems down; GitHub mirror on https://github.com/thorkill/eresi).
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WorkOS
The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
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I built a (research) library a few years ago to rewrite ELF binaries; our research projects ran into a lot of limitations with doing incremental patches to a binary (ELF has a lot of redundant representations of the same data). For us, parsing the binary into a normalized representation, modifying that, and re-serializing worked — we could make more intrusive changes to the binary, and (almost? I don’t recall anything breaking) everything in the Debian repos still ran after the binaries has been rewritten.
I expect the library is now woefully out of date, and documentation is mostly in the form of conference talk slides:
https://github.com/jbangert/mithril
there’s also https://github.com/aclements/libelfin (parsing only, supports dwarf); https://github.com/bx/elf-bf-tools (Turing machine inside elf relocations) and of course the “olg guard” of ELF reversing tools ERESI/elfsh (website seems down; GitHub mirror on https://github.com/thorkill/eresi).
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I built a (research) library a few years ago to rewrite ELF binaries; our research projects ran into a lot of limitations with doing incremental patches to a binary (ELF has a lot of redundant representations of the same data). For us, parsing the binary into a normalized representation, modifying that, and re-serializing worked — we could make more intrusive changes to the binary, and (almost? I don’t recall anything breaking) everything in the Debian repos still ran after the binaries has been rewritten.
I expect the library is now woefully out of date, and documentation is mostly in the form of conference talk slides:
https://github.com/jbangert/mithril
there’s also https://github.com/aclements/libelfin (parsing only, supports dwarf); https://github.com/bx/elf-bf-tools (Turing machine inside elf relocations) and of course the “olg guard” of ELF reversing tools ERESI/elfsh (website seems down; GitHub mirror on https://github.com/thorkill/eresi).
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I built a (research) library a few years ago to rewrite ELF binaries; our research projects ran into a lot of limitations with doing incremental patches to a binary (ELF has a lot of redundant representations of the same data). For us, parsing the binary into a normalized representation, modifying that, and re-serializing worked — we could make more intrusive changes to the binary, and (almost? I don’t recall anything breaking) everything in the Debian repos still ran after the binaries has been rewritten.
I expect the library is now woefully out of date, and documentation is mostly in the form of conference talk slides:
https://github.com/jbangert/mithril
there’s also https://github.com/aclements/libelfin (parsing only, supports dwarf); https://github.com/bx/elf-bf-tools (Turing machine inside elf relocations) and of course the “olg guard” of ELF reversing tools ERESI/elfsh (website seems down; GitHub mirror on https://github.com/thorkill/eresi).
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vscode-remote-release
Visual Studio Code Remote Development: Open any folder in WSL, in a Docker container, or on a remote machine using SSH and take advantage of VS Code's full feature set.
Probably one or two years ago I randomly met this wonderful tool amidst dealing with a VSCode Remote SSH problem via search. The story begins with using VSCode remote SSH on a HPC that is running CentOS 6. VSCode Remote SSH ship with a Node binary that is dynamically linked to a glibc that is not supported on older OSes such as CentOS 6 https://code.visualstudio.com/docs/remote/linux . I am not the system manager on the HPC and could not update the system myself, and VSCode team is too arrogant to support those old OSes. Alhough I have a homebrew environment and has a new glibc built there, the Node VSCode does not recognize that from environment variable. Manually update string in the node binary’s strings does provide me with solution at least: https://github.com/microsoft/vscode-remote-release/issues/10...