Move c_src dirs back to toplevel

We just wanted c sourcefiles out of the top level, not c source
directories.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

1 files changed, 0 insertions, 500 deletions

diff --git a/c_src/linux/xxhash.c b/c_src/linux/xxhash.c
deleted file mode 100644
index d5bb9ff1..00000000
--- a/c_src/linux/xxhash.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/*
- * xxHash - Extremely Fast Hash algorithm
- * Copyright (C) 2012-2016, Yann Collet.
- *
- * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *   * Redistributions in binary form must reproduce the above
- *     copyright notice, this list of conditions and the following disclaimer
- *     in the documentation and/or other materials provided with the
- *     distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * This program is free software; you can redistribute it and/or modify it under
- * the terms of the GNU General Public License version 2 as published by the
- * Free Software Foundation. This program is dual-licensed; you may select
- * either version 2 of the GNU General Public License ("GPL") or BSD license
- * ("BSD").
- *
- * You can contact the author at:
- * - xxHash homepage: https://cyan4973.github.io/xxHash/
- * - xxHash source repository: https://github.com/Cyan4973/xxHash
- */
-
-#include <asm/unaligned.h>
-#include <linux/errno.h>
-#include <linux/compiler.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/xxhash.h>
-
-/*-*************************************
- * Macros
- **************************************/
-#define xxh_rotl32(x, r) ((x << r) | (x >> (32 - r)))
-#define xxh_rotl64(x, r) ((x << r) | (x >> (64 - r)))
-
-#ifdef __LITTLE_ENDIAN
-# define XXH_CPU_LITTLE_ENDIAN 1
-#else
-# define XXH_CPU_LITTLE_ENDIAN 0
-#endif
-
-/*-*************************************
- * Constants
- **************************************/
-static const uint32_t PRIME32_1 = 2654435761U;
-static const uint32_t PRIME32_2 = 2246822519U;
-static const uint32_t PRIME32_3 = 3266489917U;
-static const uint32_t PRIME32_4 =  668265263U;
-static const uint32_t PRIME32_5 =  374761393U;
-
-static const uint64_t PRIME64_1 = 11400714785074694791ULL;
-static const uint64_t PRIME64_2 = 14029467366897019727ULL;
-static const uint64_t PRIME64_3 =  1609587929392839161ULL;
-static const uint64_t PRIME64_4 =  9650029242287828579ULL;
-static const uint64_t PRIME64_5 =  2870177450012600261ULL;
-
-/*-**************************
- *  Utils
- ***************************/
-void xxh32_copy_state(struct xxh32_state *dst, const struct xxh32_state *src)
-{
-	memcpy(dst, src, sizeof(*dst));
-}
-EXPORT_SYMBOL(xxh32_copy_state);
-
-void xxh64_copy_state(struct xxh64_state *dst, const struct xxh64_state *src)
-{
-	memcpy(dst, src, sizeof(*dst));
-}
-EXPORT_SYMBOL(xxh64_copy_state);
-
-/*-***************************
- * Simple Hash Functions
- ****************************/
-static uint32_t xxh32_round(uint32_t seed, const uint32_t input)
-{
-	seed += input * PRIME32_2;
-	seed = xxh_rotl32(seed, 13);
-	seed *= PRIME32_1;
-	return seed;
-}
-
-uint32_t xxh32(const void *input, const size_t len, const uint32_t seed)
-{
-	const uint8_t *p = (const uint8_t *)input;
-	const uint8_t *b_end = p + len;
-	uint32_t h32;
-
-	if (len >= 16) {
-		const uint8_t *const limit = b_end - 16;
-		uint32_t v1 = seed + PRIME32_1 + PRIME32_2;
-		uint32_t v2 = seed + PRIME32_2;
-		uint32_t v3 = seed + 0;
-		uint32_t v4 = seed - PRIME32_1;
-
-		do {
-			v1 = xxh32_round(v1, get_unaligned_le32(p));
-			p += 4;
-			v2 = xxh32_round(v2, get_unaligned_le32(p));
-			p += 4;
-			v3 = xxh32_round(v3, get_unaligned_le32(p));
-			p += 4;
-			v4 = xxh32_round(v4, get_unaligned_le32(p));
-			p += 4;
-		} while (p <= limit);
-
-		h32 = xxh_rotl32(v1, 1) + xxh_rotl32(v2, 7) +
-			xxh_rotl32(v3, 12) + xxh_rotl32(v4, 18);
-	} else {
-		h32 = seed + PRIME32_5;
-	}
-
-	h32 += (uint32_t)len;
-
-	while (p + 4 <= b_end) {
-		h32 += get_unaligned_le32(p) * PRIME32_3;
-		h32 = xxh_rotl32(h32, 17) * PRIME32_4;
-		p += 4;
-	}
-
-	while (p < b_end) {
-		h32 += (*p) * PRIME32_5;
-		h32 = xxh_rotl32(h32, 11) * PRIME32_1;
-		p++;
-	}
-
-	h32 ^= h32 >> 15;
-	h32 *= PRIME32_2;
-	h32 ^= h32 >> 13;
-	h32 *= PRIME32_3;
-	h32 ^= h32 >> 16;
-
-	return h32;
-}
-EXPORT_SYMBOL(xxh32);
-
-static uint64_t xxh64_round(uint64_t acc, const uint64_t input)
-{
-	acc += input * PRIME64_2;
-	acc = xxh_rotl64(acc, 31);
-	acc *= PRIME64_1;
-	return acc;
-}
-
-static uint64_t xxh64_merge_round(uint64_t acc, uint64_t val)
-{
-	val = xxh64_round(0, val);
-	acc ^= val;
-	acc = acc * PRIME64_1 + PRIME64_4;
-	return acc;
-}
-
-uint64_t xxh64(const void *input, const size_t len, const uint64_t seed)
-{
-	const uint8_t *p = (const uint8_t *)input;
-	const uint8_t *const b_end = p + len;
-	uint64_t h64;
-
-	if (len >= 32) {
-		const uint8_t *const limit = b_end - 32;
-		uint64_t v1 = seed + PRIME64_1 + PRIME64_2;
-		uint64_t v2 = seed + PRIME64_2;
-		uint64_t v3 = seed + 0;
-		uint64_t v4 = seed - PRIME64_1;
-
-		do {
-			v1 = xxh64_round(v1, get_unaligned_le64(p));
-			p += 8;
-			v2 = xxh64_round(v2, get_unaligned_le64(p));
-			p += 8;
-			v3 = xxh64_round(v3, get_unaligned_le64(p));
-			p += 8;
-			v4 = xxh64_round(v4, get_unaligned_le64(p));
-			p += 8;
-		} while (p <= limit);
-
-		h64 = xxh_rotl64(v1, 1) + xxh_rotl64(v2, 7) +
-			xxh_rotl64(v3, 12) + xxh_rotl64(v4, 18);
-		h64 = xxh64_merge_round(h64, v1);
-		h64 = xxh64_merge_round(h64, v2);
-		h64 = xxh64_merge_round(h64, v3);
-		h64 = xxh64_merge_round(h64, v4);
-
-	} else {
-		h64  = seed + PRIME64_5;
-	}
-
-	h64 += (uint64_t)len;
-
-	while (p + 8 <= b_end) {
-		const uint64_t k1 = xxh64_round(0, get_unaligned_le64(p));
-
-		h64 ^= k1;
-		h64 = xxh_rotl64(h64, 27) * PRIME64_1 + PRIME64_4;
-		p += 8;
-	}
-
-	if (p + 4 <= b_end) {
-		h64 ^= (uint64_t)(get_unaligned_le32(p)) * PRIME64_1;
-		h64 = xxh_rotl64(h64, 23) * PRIME64_2 + PRIME64_3;
-		p += 4;
-	}
-
-	while (p < b_end) {
-		h64 ^= (*p) * PRIME64_5;
-		h64 = xxh_rotl64(h64, 11) * PRIME64_1;
-		p++;
-	}
-
-	h64 ^= h64 >> 33;
-	h64 *= PRIME64_2;
-	h64 ^= h64 >> 29;
-	h64 *= PRIME64_3;
-	h64 ^= h64 >> 32;
-
-	return h64;
-}
-EXPORT_SYMBOL(xxh64);
-
-/*-**************************************************
- * Advanced Hash Functions
- ***************************************************/
-void xxh32_reset(struct xxh32_state *statePtr, const uint32_t seed)
-{
-	/* use a local state for memcpy() to avoid strict-aliasing warnings */
-	struct xxh32_state state;
-
-	memset(&state, 0, sizeof(state));
-	state.v1 = seed + PRIME32_1 + PRIME32_2;
-	state.v2 = seed + PRIME32_2;
-	state.v3 = seed + 0;
-	state.v4 = seed - PRIME32_1;
-	memcpy(statePtr, &state, sizeof(state));
-}
-EXPORT_SYMBOL(xxh32_reset);
-
-void xxh64_reset(struct xxh64_state *statePtr, const uint64_t seed)
-{
-	/* use a local state for memcpy() to avoid strict-aliasing warnings */
-	struct xxh64_state state;
-
-	memset(&state, 0, sizeof(state));
-	state.v1 = seed + PRIME64_1 + PRIME64_2;
-	state.v2 = seed + PRIME64_2;
-	state.v3 = seed + 0;
-	state.v4 = seed - PRIME64_1;
-	memcpy(statePtr, &state, sizeof(state));
-}
-EXPORT_SYMBOL(xxh64_reset);
-
-int xxh32_update(struct xxh32_state *state, const void *input, const size_t len)
-{
-	const uint8_t *p = (const uint8_t *)input;
-	const uint8_t *const b_end = p + len;
-
-	if (input == NULL)
-		return -EINVAL;
-
-	state->total_len_32 += (uint32_t)len;
-	state->large_len |= (len >= 16) | (state->total_len_32 >= 16);
-
-	if (state->memsize + len < 16) { /* fill in tmp buffer */
-		memcpy((uint8_t *)(state->mem32) + state->memsize, input, len);
-		state->memsize += (uint32_t)len;
-		return 0;
-	}
-
-	if (state->memsize) { /* some data left from previous update */
-		const uint32_t *p32 = state->mem32;
-
-		memcpy((uint8_t *)(state->mem32) + state->memsize, input,
-			16 - state->memsize);
-
-		state->v1 = xxh32_round(state->v1, get_unaligned_le32(p32));
-		p32++;
-		state->v2 = xxh32_round(state->v2, get_unaligned_le32(p32));
-		p32++;
-		state->v3 = xxh32_round(state->v3, get_unaligned_le32(p32));
-		p32++;
-		state->v4 = xxh32_round(state->v4, get_unaligned_le32(p32));
-		p32++;
-
-		p += 16-state->memsize;
-		state->memsize = 0;
-	}
-
-	if (p <= b_end - 16) {
-		const uint8_t *const limit = b_end - 16;
-		uint32_t v1 = state->v1;
-		uint32_t v2 = state->v2;
-		uint32_t v3 = state->v3;
-		uint32_t v4 = state->v4;
-
-		do {
-			v1 = xxh32_round(v1, get_unaligned_le32(p));
-			p += 4;
-			v2 = xxh32_round(v2, get_unaligned_le32(p));
-			p += 4;
-			v3 = xxh32_round(v3, get_unaligned_le32(p));
-			p += 4;
-			v4 = xxh32_round(v4, get_unaligned_le32(p));
-			p += 4;
-		} while (p <= limit);
-
-		state->v1 = v1;
-		state->v2 = v2;
-		state->v3 = v3;
-		state->v4 = v4;
-	}
-
-	if (p < b_end) {
-		memcpy(state->mem32, p, (size_t)(b_end-p));
-		state->memsize = (uint32_t)(b_end-p);
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(xxh32_update);
-
-uint32_t xxh32_digest(const struct xxh32_state *state)
-{
-	const uint8_t *p = (const uint8_t *)state->mem32;
-	const uint8_t *const b_end = (const uint8_t *)(state->mem32) +
-		state->memsize;
-	uint32_t h32;
-
-	if (state->large_len) {
-		h32 = xxh_rotl32(state->v1, 1) + xxh_rotl32(state->v2, 7) +
-			xxh_rotl32(state->v3, 12) + xxh_rotl32(state->v4, 18);
-	} else {
-		h32 = state->v3 /* == seed */ + PRIME32_5;
-	}
-
-	h32 += state->total_len_32;
-
-	while (p + 4 <= b_end) {
-		h32 += get_unaligned_le32(p) * PRIME32_3;
-		h32 = xxh_rotl32(h32, 17) * PRIME32_4;
-		p += 4;
-	}
-
-	while (p < b_end) {
-		h32 += (*p) * PRIME32_5;
-		h32 = xxh_rotl32(h32, 11) * PRIME32_1;
-		p++;
-	}
-
-	h32 ^= h32 >> 15;
-	h32 *= PRIME32_2;
-	h32 ^= h32 >> 13;
-	h32 *= PRIME32_3;
-	h32 ^= h32 >> 16;
-
-	return h32;
-}
-EXPORT_SYMBOL(xxh32_digest);
-
-int xxh64_update(struct xxh64_state *state, const void *input, const size_t len)
-{
-	const uint8_t *p = (const uint8_t *)input;
-	const uint8_t *const b_end = p + len;
-
-	if (input == NULL)
-		return -EINVAL;
-
-	state->total_len += len;
-
-	if (state->memsize + len < 32) { /* fill in tmp buffer */
-		memcpy(((uint8_t *)state->mem64) + state->memsize, input, len);
-		state->memsize += (uint32_t)len;
-		return 0;
-	}
-
-	if (state->memsize) { /* tmp buffer is full */
-		uint64_t *p64 = state->mem64;
-
-		memcpy(((uint8_t *)p64) + state->memsize, input,
-			32 - state->memsize);
-
-		state->v1 = xxh64_round(state->v1, get_unaligned_le64(p64));
-		p64++;
-		state->v2 = xxh64_round(state->v2, get_unaligned_le64(p64));
-		p64++;
-		state->v3 = xxh64_round(state->v3, get_unaligned_le64(p64));
-		p64++;
-		state->v4 = xxh64_round(state->v4, get_unaligned_le64(p64));
-
-		p += 32 - state->memsize;
-		state->memsize = 0;
-	}
-
-	if (p + 32 <= b_end) {
-		const uint8_t *const limit = b_end - 32;
-		uint64_t v1 = state->v1;
-		uint64_t v2 = state->v2;
-		uint64_t v3 = state->v3;
-		uint64_t v4 = state->v4;
-
-		do {
-			v1 = xxh64_round(v1, get_unaligned_le64(p));
-			p += 8;
-			v2 = xxh64_round(v2, get_unaligned_le64(p));
-			p += 8;
-			v3 = xxh64_round(v3, get_unaligned_le64(p));
-			p += 8;
-			v4 = xxh64_round(v4, get_unaligned_le64(p));
-			p += 8;
-		} while (p <= limit);
-
-		state->v1 = v1;
-		state->v2 = v2;
-		state->v3 = v3;
-		state->v4 = v4;
-	}
-
-	if (p < b_end) {
-		memcpy(state->mem64, p, (size_t)(b_end-p));
-		state->memsize = (uint32_t)(b_end - p);
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(xxh64_update);
-
-uint64_t xxh64_digest(const struct xxh64_state *state)
-{
-	const uint8_t *p = (const uint8_t *)state->mem64;
-	const uint8_t *const b_end = (const uint8_t *)state->mem64 +
-		state->memsize;
-	uint64_t h64;
-
-	if (state->total_len >= 32) {
-		const uint64_t v1 = state->v1;
-		const uint64_t v2 = state->v2;
-		const uint64_t v3 = state->v3;
-		const uint64_t v4 = state->v4;
-
-		h64 = xxh_rotl64(v1, 1) + xxh_rotl64(v2, 7) +
-			xxh_rotl64(v3, 12) + xxh_rotl64(v4, 18);
-		h64 = xxh64_merge_round(h64, v1);
-		h64 = xxh64_merge_round(h64, v2);
-		h64 = xxh64_merge_round(h64, v3);
-		h64 = xxh64_merge_round(h64, v4);
-	} else {
-		h64  = state->v3 + PRIME64_5;
-	}
-
-	h64 += (uint64_t)state->total_len;
-
-	while (p + 8 <= b_end) {
-		const uint64_t k1 = xxh64_round(0, get_unaligned_le64(p));
-
-		h64 ^= k1;
-		h64 = xxh_rotl64(h64, 27) * PRIME64_1 + PRIME64_4;
-		p += 8;
-	}
-
-	if (p + 4 <= b_end) {
-		h64 ^= (uint64_t)(get_unaligned_le32(p)) * PRIME64_1;
-		h64 = xxh_rotl64(h64, 23) * PRIME64_2 + PRIME64_3;
-		p += 4;
-	}
-
-	while (p < b_end) {
-		h64 ^= (*p) * PRIME64_5;
-		h64 = xxh_rotl64(h64, 11) * PRIME64_1;
-		p++;
-	}
-
-	h64 ^= h64 >> 33;
-	h64 *= PRIME64_2;
-	h64 ^= h64 >> 29;
-	h64 *= PRIME64_3;
-	h64 ^= h64 >> 32;
-
-	return h64;
-}
-EXPORT_SYMBOL(xxh64_digest);
-
-MODULE_LICENSE("Dual BSD/GPL");
-MODULE_DESCRIPTION("xxHash");