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>
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/*
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StarForth — Steady-State Virtual Machine Runtime
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Copyright (c) 2023–2025 Robert A. James
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All rights reserved.
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This file is part of the StarForth project.
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Licensed under the StarForth License, Version 1.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at:
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https://github.com/star.4th@proton.me/StarForth/LICENSE.txt
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This software is provided "AS IS", WITHOUT WARRANTY OF ANY KIND,
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express or implied, including but not limited to the warranties of
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merchantability, fitness for a particular purpose, and noninfringement.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* xxhash64.h - xxHash64 Implementation (Freestanding)
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*
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* Fast, deterministic 64-bit hash function for capsule content addressing.
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* No libc dependency - works in kernel context.
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*
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* Based on xxHash by Yann Collet (BSD-2-Clause license).
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* https://github.com/Cyan4973/xxHash
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*/
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#ifndef STARKERNEL_XXHASH64_H
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#define STARKERNEL_XXHASH64_H
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#include <stdint.h>
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#include <stddef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*===========================================================================
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* Constants
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*===========================================================================*/
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/** Default seed for capsule hashing (deterministic) */
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#define XXHASH64_CAPSULE_SEED 0ULL
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/*===========================================================================
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* One-Shot Hashing
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*===========================================================================*/
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/**
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* xxhash64 - Compute xxHash64 of a buffer
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*
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* @param data Input data
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* @param len Length in bytes
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* @param seed Hash seed (use XXHASH64_CAPSULE_SEED for capsules)
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* @return 64-bit hash value
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*/
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uint64_t xxhash64(const void *data, size_t len, uint64_t seed);
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/**
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* xxhash64_capsule - Hash capsule payload with standard seed
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*
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* Convenience wrapper using XXHASH64_CAPSULE_SEED.
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*
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* @param data Capsule payload bytes
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* @param len Payload length
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* @return Content hash (capsule_id)
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*/
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static inline uint64_t xxhash64_capsule(const void *data, size_t len) {
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return xxhash64(data, len, XXHASH64_CAPSULE_SEED);
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}
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/*===========================================================================
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* Streaming API (for large data)
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*===========================================================================*/
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/** Streaming state structure */
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typedef struct {
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uint64_t total_len;
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uint64_t v1;
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uint64_t v2;
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uint64_t v3;
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uint64_t v4;
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uint8_t buffer[32];
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uint32_t buffer_size;
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uint64_t seed;
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} XXHash64State;
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/**
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* xxhash64_reset - Initialize streaming state
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*
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* @param state State to initialize
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* @param seed Hash seed
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*/
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void xxhash64_reset(XXHash64State *state, uint64_t seed);
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/**
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* xxhash64_update - Feed data into streaming hash
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*
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* @param state Streaming state
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* @param data Input data
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* @param len Length in bytes
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*/
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void xxhash64_update(XXHash64State *state, const void *data, size_t len);
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/**
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* xxhash64_digest - Finalize and get hash value
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*
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* @param state Streaming state
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* @return 64-bit hash value
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*/
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uint64_t xxhash64_digest(const XXHash64State *state);
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#ifdef __cplusplus
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}
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#endif
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#endif /* STARKERNEL_XXHASH64_H */
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