Markus Maiwald
e3246e8509
chore: remove build artifacts — initrd.tar, compiled binaries, temp ELFs
2026-02-15 20:04:27 +01:00
Markus Maiwald
a38bc523a8
feat(build): dual-arch build system — build_nim.sh, build_full.sh, run_aarch64.sh
2026-02-15 19:59:26 +01:00
Markus Maiwald
8d64fe2180
feat(fs): LittleFS integration — VFS, HAL bridge, persistent /nexus
2026-02-15 19:59:13 +01:00
011e0b699e
fix(rumpk): enable user stack access and repair boot process
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- Enabled SUM (Supervisor Access to User Memory) in riscv_init to allow kernel loader to write to user stacks.
- Removed dangerous 'csrc sstatus' in kload_phys that revoked access.
- Aligned global fiber stacks to 4096 bytes to prevent unmapped page faults at stack boundaries.
- Restored 'boot.o' linking to fix silent boot failure.
- Implemented 'fiber_can_run_on_channels' stub to satisfy Membrane linking.
- Defined kernel stack in header.zig to fix '__stack_top' undefined symbol.
- Resolved duplicate symbols in overrides.c and nexshell.
2026-01-08 21:38:14 +01:00
7207282236
feat(tinybox): graft toybox integration and build system automation
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- Integrated ToyBox as git submodule
- Added src/nexus/builder/toybox.nim for automated cross-compilation
- Updated InitRD builder to support symlinks
- Refactored Kernel builder to fix duplicate symbol and path issues
- Modified forge.nim to orchestrate TinyBox synthesis (mksh + toybox)
- Updated SPEC-006-TinyBox.md with complete architecture
- Added mksh binary to initrd graft source
2026-01-08 21:18:08 +01:00
4cec2d8c25
feat(rumpk): Achieve interactive Mksh shell & formalize Sovereign FSH
...
CHECKPOINT 7: Nuke LwIP, Fix Stack
🎯 PRIMARY ACHIEVEMENTS:
- ✅ Interactive Mksh shell successfully boots and accepts input
- ✅ Kernel-side LwIP networking disabled (moved to userland intent)
- ✅ C-ABI handover fully operational (argc, argv, environ)
- ✅ SPEC-130: Sovereign Filesystem Hierarchy formalized
🔧 KERNEL FIXES:
1. **Nuked Kernel LwIP**
- Disabled membrane_init() in kernel.nim
- Prevented automatic DHCP/IP acquisition
- Network stack deferred to userland control
2. **Fixed C-ABI Stack Handover**
- Updated rumpk_enter_userland signature: (entry, argc, argv, sp)
- Kernel prepares userland stack at 0x8FFFFFE0 (top of user RAM)
- Stack layout: [argc][argv[0]][argv[1]=NULL][envp[0]=NULL][string data]
- Preserved kernel-passed arguments through subject_entry.S
3. **Fixed Trap Return Stack Switching**
- Added sscratch swap before sret in entry_riscv.zig
- Properly restores user stack and preserves kernel stack pointer
- Fixes post-syscall instruction page fault
4. **Rebuilt Mksh with Fixed Runtime**
- subject_entry.S no longer zeros a0/a1
- Arguments flow: Kernel -> switch.S -> subject_entry.S -> main()
📐 ARCHITECTURAL SPECS:
- **SPEC-130: Sovereign Filesystem Hierarchy**
- Tri-State (+1) Storage Model: /sysro, /etc, /run, /state
- Declarative Stateless Doctrine (inspired by Clear Linux/Silverblue)
- Ghost Writer Pattern: KDL recipes -> /etc generation
- Bind-Mount Strategy for legacy app grafting
- Database Contract for /state (transactional, encrypted)
🛠️ DEVELOPER EXPERIENCE:
- Fixed filesystem.nim to fallback to .nexus/ for local builds
- Prevents permission errors during development
🧪 VERIFICATION:
Syscalls confirmed working: write (0x200, 0x204), read (0x203)
NEXT: Implement proper TTY/PTY subsystem for full job control
Co-authored-by: <voxis@nexus-os.org>
2026-01-05 01:14:24 +01:00
6e78b7f458
Rumpk Stability, NipBox Boot, and Repository Cleanup
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- Fixed Rumpk RISC-V Trap Handler (SSCRATCH swap, align(4), SUM bit) to prevent double faults.
- Stabilized Userland Transition (fence.i, MMU activation) allowing NipBox execution.
- Restored Forge pipeline to build NipBox from source.
- Documented critical RISC-V trap mechanics in .agent/tips.
- Committed pending repository cleanup (obsolete websites) and new core modules.
2026-01-04 21:39:06 +01:00
46e7be6837
feat(rumpk): Phase 7 Verified - Subject Zero Launch
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- Implemented Sovereign Syscall Table at 0x801FFF00
- Added cooperative yielding (s_yield) for Guest/Kernel concurrency
- Initialized Guest RX Ring and flows in Kernel
- Bridged LwIP in Guest via net_glue and ion_client overrides
- Validated TCP handshake and data transmission (Subject Zero -> Host)
- Confirmed 'Hello from the Membrane!' via UART and Network
2025-12-31 20:18:48 +01:00
Markus Maiwald
Markus Maiwald