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https://github.com/luxfi/accel.git
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zooqueenandHanzo Dev
0c0e347265
The lux_hqc_native opt-in tag made native HQC off-by-default, so plain 'go build' silently shipped the stub and HQC needed -tags to work. That was the wrong call. Native is now THE default cgo path (code_cpu.go, //go:build cgo) linking libluxgpu_hqc from the installed lux-gpu keg; only CGO_ENABLED=0 (code_nocgo.go) uses the stub. No tag needed. Verified: CGO=1 go build/test/bench ./ops/code/ runs native HQC with zero tags (lux-gpu installed at /opt/homebrew/opt/lux-gpu); CGO=0 still compiles the stub. Full accel suite green (7/7, no tags). Co-authored-by: Hanzo Dev <[email protected]>
43 lines
1.6 KiB
Go
43 lines
1.6 KiB
Go
// Copyright (C) 2024-2026, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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//go:build cgo && !hqc_pqclean
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// Standalone `randombytes` shim for the accel/ops/code binding.
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//
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// PQClean's HQC reference (inside libluxgpu_hqc.a) calls `extern int
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// randombytes(out, n)` for every entropy byte it needs. When this
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// package is consumed in isolation (e.g. by `go test ./ops/code/...`
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// or a downstream service that does NOT also link luxfi/crypto/hqc),
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// no other TU provides that symbol; this file does.
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//
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// The build tag `hqc_pqclean` deliberately matches the tag that
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// luxfi/crypto/hqc uses to wire in its OWN `randombytes_shim.c`.
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// When that tag is set, both crypto/hqc and accel/ops/code are
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// linked into the same binary — only crypto/hqc's shim provides
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// `randombytes`, and that shim dispatches between the TLS seed
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// buffer (for batch ops) and the Go io.Reader (for single-op
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// dispatch). Excluding this file in that case prevents the
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// duplicate-symbol link error.
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package code
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/*
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#include <stdint.h>
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#include <stddef.h>
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// Forward declaration of the TLS seed reader exposed by libluxgpu_hqc.
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extern int lux_hqc_randombytes(uint8_t* out, size_t n);
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// randombytes — strong definition for standalone accel/ops/code use.
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// Forwards to the canonical TLS seed reader. The C++ batch kernel
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// pre-installs a per-slot seed slice before each inner PQClean
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// invocation, so every read here returns deterministic bytes from
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// the caller-provided seed buffer.
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int randombytes(uint8_t* out, size_t n);
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int randombytes(uint8_t* out, size_t n) {
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return lux_hqc_randombytes(out, n);
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}
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*/
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import "C"
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