From 9fde94d068f87b34e0bc6bfa48388d89bb54f1e4 Mon Sep 17 00:00:00 2001 From: salmonik Date: Mon, 3 Aug 2026 02:23:35 +0200 Subject: v0.5.8: heap-free QR encoder + crash-dump QR on framebuffer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Real hardware has no serial console, so a kernel crash only leaves a frozen screen. Every dump_lines() report now also renders the crash text as a scannable QR below the white-on-red band (photograph the screen instead of relaying text). - rsnix/src/qr.rs: from-scratch no_std/no_alloc byte-mode QR encoder (EC-L, v1..v40, .bss statics only — safe on the fault path): RS over GF(256), codeword interleave, zigzag placement, 8 masks with N1-N4 penalty auto-selection, format/version info. - gop.rs: dump_qr() joins dump lines into a static buffer, truncates with '...' at the v40-L capacity, encodes, and renders centered black-on-white with a 4-module quiet zone. - tools/qrcheck: host harness (embedds qr.rs) + qrcheck.py cross-check against segno's placement primitives. Verified bit-exact: 12 versions x 8 masks forced, plus auto-mask choice matches segno's penalty evaluation. Caught 3 encoder bugs (multi-block interleave offsets, transposed version info, mask eval ordering). - QEMU e2e: page-fault dump screendump decodes via zbarimg, content matches the serial log line-for-line. - test-msg.sh and test-fault.sh both PASS; debug+release 0 warnings. --- rsnix/src/lib.rs | 1 + 1 file changed, 1 insertion(+) (limited to 'rsnix/src/lib.rs') diff --git a/rsnix/src/lib.rs b/rsnix/src/lib.rs index f4645a5..dbb327c 100644 --- a/rsnix/src/lib.rs +++ b/rsnix/src/lib.rs @@ -14,6 +14,7 @@ pub mod klog; pub mod memory; pub mod paging; pub mod pci; +pub mod qr; pub mod power; pub mod ps2; pub mod rtc; -- cgit v1.2.3