rajamesandJunie
a8b70e88d3
Source tree reorganization: - Move StarForth v3 engine to v3/ (src/, include/, Makefile) - Move kernel to kernel/ (src/, include/, linker/, Makefile) - Create v4/ skeleton for F18-ISA golden model (DECOMPOSITION.md, JUSTIFICATION.md) - Move FABRIC-0..4.md to docs/fabric/ - Move ONTOLOGY.md and ROADMAP.md to docs/ Board infrastructure: - Add boards/ser5/, boards/raspi/, boards/milkv/, boards/zynq7020/ - Each board has board.mk (ISA, CPU flags, boot recipe) and README.md - Root Makefile becomes thin dispatcher: boot_image, all, clean, docs take TARGET - make boot_image TARGET=SER5|RASPI|MILKV builds one GPT/MBR image per board - ZYNQ7020 target exists but stops with clear error (ARMv7 port not built yet) - scripts/mkdiskimage.sh builds disk images for all boards Docs pipeline: - docs/book/ with LaTeX master (main.tex) and Makefile - pandoc converts Markdown to LaTeX at build time - Two Lua filters: table-widths.lua (wide tables wrap), code-breaks.lua (inline code breaks) - make docs builds single PDF (754 pages, 0 missing characters) - make docs TARGET=<board> adds board appendix - build/docs/<book|board>/meta.tex stamps git commit into PDF Bug fixes: - 42 include paths that only worked by accident now use correct relative paths - clang-18 hardcode replaced with configurable CC variable (fixed aarch64 build) - Pi 5: kernel_2712.img linked at 0x80000, .bss zeroed, memory reserved - Doxyfile, .clang-tidy, README.md, Kconfig paths updated Verified: - Hosted v3 build passes 1012 tests, 0 failures - SER5 image boots in QEMU (OVMF), POST passes, K exact (65536 = Q48_ONE) - Milk-V image boots in QEMU (OpenSBI + U-Boot + bootefi), POST passes - make clean TARGET=<board> removes only that board and its ISA objects - make all builds all boards, hosted v3, and docs in one run Co-authored-by: Junie <junie@jetbrains.com>
61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
/*
|
||
StarForth — Steady-State Virtual Machine Runtime
|
||
|
||
Copyright (c) 2023–2025 Robert A. James
|
||
All rights reserved.
|
||
|
||
This file is part of the StarForth project.
|
||
|
||
Licensed under the StarForth License, Version 1.0 (the "License");
|
||
you may not use this file except in compliance with the License.
|
||
|
||
You may obtain a copy of the License at:
|
||
https://github.com/star.4th@proton.me/StarForth/LICENSE.txt
|
||
|
||
This software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
express or implied, including but not limited to the warranties of
|
||
merchantability, fitness for a particular purpose, and noninfringement.
|
||
|
||
See the License for the specific language governing permissions and
|
||
limitations under the License.
|
||
*/
|
||
|
||
/**
|
||
* switch.h - Cooperative VM context switch (FABRIC-3.md §XXVIII, Stage 2,
|
||
* 2026-09-13).
|
||
*
|
||
* sk_vm_context_switch() suspends `from`'s execution exactly where it is
|
||
* (mid-C-call-stack, on from's own native stack -- Stage 1) and resumes
|
||
* `to` -- either for the first time ever (a synthesized initial frame,
|
||
* entering sk_vm_switch_entry()) or exactly where `to` was itself last
|
||
* switched out. Returns to the caller only once something later switches
|
||
* back to `from` -- from from's own point of view, this call simply
|
||
* takes a while to return, like any blocking call.
|
||
*
|
||
* Cooperative only: nothing here is interrupt-driven yet (that's Stage
|
||
* 3), so this is safe to call only from ordinary FORTH word dispatch,
|
||
* never from ISR context.
|
||
*/
|
||
|
||
#ifndef STARKERNEL_VM_SWITCH_H
|
||
#define STARKERNEL_VM_SWITCH_H
|
||
|
||
#ifdef __STARKERNEL__
|
||
|
||
struct VM;
|
||
|
||
int sk_vm_context_switch(struct VM *from, struct VM *to);
|
||
|
||
/* FABRIC-3.md §XXVIII Stage 3 follow-on (2026-09-14): which VM is
|
||
* currently physically running, tracked by the switch mechanism itself --
|
||
* see switch.c's own doc comment on g_switch_current_vm for why this
|
||
* exists instead of reusing vm_log_attributed_vm(). sk_vm_switch_set_
|
||
* current() seeds the initial value (whoever is running before any
|
||
* switch has ever happened) -- call once, at Stage 3 registration time. */
|
||
struct VM *sk_vm_switch_current_vm(void);
|
||
void sk_vm_switch_set_current(struct VM *vm);
|
||
|
||
#endif /* __STARKERNEL__ */
|
||
|
||
#endif /* STARKERNEL_VM_SWITCH_H */
|