Using Freestanding C++ for C++17 in Shellcode, UEFI, Embedded & Unikernels
summary
Shows how to run full C++17 with libc++ and Newlib in freestanding environments by building a static PIE toolchain and a custom ELF header-only loader that injects an ELF image at runtime, plus a table-based unwinder and C runtime shims. Demonstrates a UEFI hello‑world and a shellcode demo that loads and executes a statically linked C++ binary from a buffer (it works), currently x86_64 only with no shared‑lib support.
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chapters (15)
- 0:00Introduction and goals
- 1:13Freestanding C++ explained
- 5:07Compiler flags and setup
- 12:40Missing runtime support
- 16:09Bareflank hypervisor approach
- 18:35C++ loader concept
- 20:00Hello world demo
- 22:30UEFI application example
- 33:21Shellcode demo setup
- 37:47Buffer overflow basics
- 40:20Shellcode payload details
- 46:08Live shellcode attack demo
- 48:34Limitations and future work
- 50:52Q&A on exception handling
- 53:27Q&A on system calls
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