e8fb428861
feat(rumpk): Phase 8 - The Summoning (ELF Loader) - 95% Complete
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## Major Features
### 1. Dynamic ELF64 Binary Loading
- Implemented ELF parser with full header validation (core/loader/elf.nim)
- Created kexec() loader supporting PT_LOAD segment mapping
- Added BSS initialization and data copying from VFS
- Assembly trampoline (rumpk_enter_userland) for userland entry
### 2. Syscall Infrastructure
- Added CMD_SYS_EXEC (0x400) for consciousness swapping
- Integrated exec command in NipBox shell
- Implemented syscall routing through command ring
- Added provenance tracking via SipHash
### 3. Test Binary & Build System
- Created hello.c test program for alien binary execution
- Automated compilation and initrd inclusion in build.sh
- Added libnexus.h header for standalone C programs
### 4. VFS Integration
- Implemented TarFS file cursor system for sequential reads
- Fixed infinite loop bug in cat command
- Added debug logging for VFS mount process
## Technical Improvements
### Memory Management
- Fixed input ring null pointer dereference
- Implemented CMD_ION_FREE syscall for packet reclamation
- Resolved memory leak in input/output pipeline
- Added FileHandle with persistent offset tracking
### ABI Stability
- Split kprint into 1-arg (Nim) and kwrite (C ABI)
- Fixed cstring conversion warnings across codebase
- Corrected RISC-V assembly (csrw sie, zero)
### Documentation
- Comprehensive Phase 8 documentation (docs/PHASE-8-ELF-LOADER.md)
- Detailed implementation notes and debugging status
## Current Status
✅ ELF parser, loader, and syscall infrastructure complete
✅ Test binary compiles and embeds in VFS
✅ Shell integration functional
🔧 Debugging command ring communication (syscall not reaching kernel)
## Files Changed
Core:
- core/loader.nim, core/loader/elf.nim (NEW)
- core/kernel.nim, core/ion.nim (syscall handling)
- core/fs/tar.nim (file cursor system)
- hal/arch/riscv64/switch.S (userland trampoline)
Userland:
- npl/nipbox/nipbox.nim (exec command)
- libs/membrane/libc_shim.zig (syscall implementation)
- libs/membrane/ion.zig (command ring API)
Build & Test:
- build.sh (hello.c compilation)
- rootfs/src/hello.c, rootfs/src/libnexus.h (NEW)
- apps/subject_entry.S (NEW)
## Next Steps
1. Debug SysTable and command ring communication
2. Verify ION fiber polling of chan_cmd
3. Test full ELF loading and execution flow
4. Add memory protection (future phase)
Co-authored-by: Voxis Forge <ai@voxisforge.dev>
2025-12-31 20:18:49 +01:00
b3d9c2a49d
feat(rumpk): Phase 2 Complete - The Entropy Purge & Sovereign Alignment
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- Rumpk Core: Complete exorcism of LwIP/NET ghosts. Transitioned to ION nomenclature.
- ABI Sync: Synchronized Zig HAL and Nim Logic Ring Buffer layouts (u32 head/tail/mask).
- Invariant Shield: Hardened HAL pipes with handle-based validation and power-of-2 sync.
- Immune System: Verified Blink Recovery (Self-Healing) with updated ION Control Plane.
- NexShell: Major refactor of Command Plane for Sovereign Ring access.
- Architecture: Updated SPEC files and Doctrines (Silence, Hexagonal Sovereignty).
- Purge: Removed legacy rumk and nip artifacts for a clean substrate.
- Web: Updated landing page vision to match Rumpk v1.1 milestones.
2025-12-31 20:18:48 +01:00
2f8a062a74
feat(rumpk): Multi-Architecture HAL (aarch64, x86_64, riscv64)
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TRI-ARCH SOVEREIGNTY
====================
Rumpk now supports three major architectures:
- aarch64 (ARM64): VisionFive 2, RPi, AWS Graviton
- x86_64: Standard servers, trading, banking
- riscv64: Sovereign compute, satellites, drones
DIRECTORY STRUCTURE
-------------------
hal/arch/
├── aarch64/
│ ├── switch.S # ARM64 context switch (96 bytes)
│ └── constants.nim # LR_OFFSET=11, FP_OFFSET=10
├── x86_64/
│ ├── switch.S # System V ABI switch (56 bytes)
│ └── constants.nim # RIP_OFFSET=6
└── riscv64/
├── switch.S # RISC-V LP64 switch (112 bytes)
└── constants.nim # RA_OFFSET=0
UNIFIED FIBER.NIM
-----------------
Uses Nim's 'when defined()' for compile-time arch selection:
- CONTEXT_SIZE varies by arch (56/96/112)
- RET_ADDR_INDEX points to return address slot
- Halt instruction varies (hlt/wfi)
BUILD SYSTEM
------------
./build.sh [aarch64|x86_64|riscv64]
- Default: aarch64
- Output: build/rumpk-$ARCH.elf
- Auto-selects linker script if arch-specific exists
ABI SUMMARY
-----------
| Arch | Callee-Saved | Frame | Alignment |
|----------|------------------------|-------|-----------|
| aarch64 | x19-x30 | 96B | 16-byte |
| x86_64 | rbx,rbp,r12-r15 | 56B | 16-byte |
| riscv64 | ra,s0-s11 | 112B | 16-byte |
VERIFICATION
------------
ARM64 fibers still work:
[Fiber A] I am alive! Yielding to B...
[Fiber B] Hello from B! Yielding to A...
[Fiber A] I am back! Yielding to B...
One codebase. All profiles. NIIX philosophy enforced.
2025-12-31 20:18:47 +01:00
Markus Maiwald