Files
LithosAnanke/kernel/include/starkernel/kmalloc.h
T
Claude 16b9747d33 chore(license): the source headers name the Starship License 1.0 (SL-1.0), as LICENSE does [skip ci]
347 headers said "Licensed under the StarForth License, Version 1.0" -- a
shortening (Captain Bob, 2026-11-08: "License file SL I think I shortened
accidently"); LICENSE is, and has been since the first commit, the
Starship License 1.0 (SL-1.0, SPDX LicenseRef-Starship-1.0). 349 files,
566 occurrences, now "Starship License, Version 1.0 (SL-1.0)".

Left as they are, pending a ruling: docs/patent/ (the patent figures),
docs/formal/ (the citable volumes) and the generated reports under
docs/working/experiments/ (32 files). Comments and license text only:
the amd64 kernel builds, every changed script parses.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GE3SDvQn5EoxdGufk84zz2
2026-11-08 17:54:24 +00:00

87 lines
3.1 KiB
C
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/*
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 Starship License, Version 1.0 (SL-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.
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 Starship License, Version 1.0 (SL-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.
*/
/**
* kmalloc.h - Kernel heap allocator interface
*/
#ifndef STARKERNEL_KMALLOC_H
#define STARKERNEL_KMALLOC_H
#include <stddef.h>
#include <stdint.h>
typedef struct {
uint64_t total_bytes;
uint64_t used_bytes;
uint64_t peak_bytes;
uint64_t free_bytes;
} kmalloc_stats_t;
int kmalloc_init(uint64_t heap_size_bytes);
int kmalloc_is_initialized(void);
void *kmalloc(size_t size);
void *kmalloc_aligned(size_t size, size_t align);
void kfree(void *ptr);
kmalloc_stats_t kmalloc_get_stats(void);
uintptr_t kmalloc_heap_base_addr(void);
uintptr_t kmalloc_heap_end_addr(void);
/* Debug/diagnostic probe -- free-list census (largest free block, count of
free blocks, count of allocated blocks, total blocks). Kept as permanent
infrastructure (FABRIC-3.md SXIII, 2026-09-10): a cheap O(n) walk over
the free list, useful for any future heap-shape investigation, not just
the one that introduced it. Not called anywhere in the normal boot path
today -- callers add their own log_message() call sites when debugging. */
void kmalloc_debug_census(size_t *out_largest_free, size_t *out_free_count,
size_t *out_used_count, size_t *out_total_blocks);
/* Same precedent as kmalloc_debug_census() above -- sum of free-block bytes
and used-block bytes across the whole free list. The pairing of the two
(block-count census + byte-sum census) is what let FABRIC-3.md SXIII tell
real heap corruption apart from ordinary fragmentation: fragmentation
grows free_count while total_free_bytes stays flat; corruption drops
both together. */
void kmalloc_debug_census_bytes(size_t *out_total_free_bytes, size_t *out_total_used_bytes);
#endif /* STARKERNEL_KMALLOC_H */