diff options
| author | Lukasz Kasprzak <lukas@labunix.xyz> | 2026-07-29 00:49:47 +0200 |
|---|---|---|
| committer | Lukasz Kasprzak <lukas@labunix.xyz> | 2026-07-29 00:49:47 +0200 |
| commit | 302897c5e8d61db9107505ba929f9abfc197896d (patch) | |
| tree | 55c1504dcb03727b22a9af6b0c420fc65c039298 /clectio.c | |
| parent | 46e482552c35456ddc836720df0a44ba25f60544 (diff) | |
| download | clectio-302897c5e8d61db9107505ba929f9abfc197896d.tar.gz clectio-302897c5e8d61db9107505ba929f9abfc197896d.zip | |
perf: DEFLATE (puff) + -no-pie -> OF binary 879 KB -> 662 KB (-25%)
Two size wins:
- Replace the home-grown LZSS (2.0x) with DEFLATE: mktext gzips the text and
strips the gzip container to a raw DEFLATE stream; clectio decompresses it
with puff, Mark Adler's public-domain reference inflate (~200 lines, verified
byte-identical to gunzip on the OF/EF text, repetitive, random and empty
inputs). Text blob 671 KB -> 492 KB (OF), 164 KB -> 132 KB (EF), 2.7x.
- Build with -no-pie: clectio is a local CLI reading static embedded data with
no attack surface, so it needs no PIE/ASLR. The linker then bakes the string-
table pointers in at link time instead of emitting ~57 KB of runtime
relocations.
Net: OF 879 -> 662 KB, EF 266 -> 214 KB. Verified byte-identical to lectio.
The default build still needs only a compiler + libc; a CORPUS= rebuild now
also needs gzip. lz.h removed.
Claude-Session: https://claude.ai/code/session_01S1CD1u3tgSS4xNu6WHfp5a
Diffstat (limited to 'clectio.c')
| -rw-r--r-- | clectio.c | 13 |
1 files changed, 7 insertions, 6 deletions
@@ -12,8 +12,8 @@ #include "config.h" #include LITURGY /* gen/liturgy_<form>.h: names,parts,cites_*,vpool,readings,rpool,days,cal,EPOCH,NDAYS */ -#include "text.lz.h" /* embedded LZSS text blob: text_lz[], text_lz_len */ -#include "lz.h" +#include "text.lz.h" /* embedded DEFLATE text blob: text_lz[], text_lz_len */ +#include "puff.h" #include <stdio.h> #include <stdlib.h> @@ -39,12 +39,13 @@ static long days_from_civil(long y, unsigned m, unsigned d) { } static void load_text(void) { - unsigned raw = text_lz[0] | text_lz[1] << 8 | text_lz[2] << 16 | (unsigned)text_lz[3] << 24; + unsigned long rawlen = text_lz[0] | text_lz[1] << 8 | text_lz[2] << 16 | (unsigned long)text_lz[3] << 24; + unsigned long dstlen = rawlen, srclen = text_lz_len - 4; size_t cap = 8192, n = 0; char *p; - textbuf = malloc(raw + 1); - lz_unpack(text_lz + 4, text_lz_len - 4, (unsigned char *)textbuf, raw); - textbuf[raw] = 0; + textbuf = malloc(rawlen + 1); + puff((unsigned char *)textbuf, &dstlen, text_lz + 4, &srclen); + textbuf[dstlen] = 0; verse = malloc(cap * sizeof(*verse)); verse[n++] = textbuf; for (p = textbuf; *p; p++) |
