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tools/squashfs4: refresh multiple lzma configuration option patch

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Refresh multiple lzma configuration option patch with new version
proposed upstream. (Reintroduce -Xe option and add more checks and
general better code quality)

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2023-04-12 12:18:19 +02:00
parent ee1bfd3034
commit 4532919711
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GPG Key ID: AC001D09ADBFEAD7
2 changed files with 45 additions and 25 deletions
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2
tools/squashfs4/Makefile
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@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
PKG_NAME:=squashfs4
PKG_CPE_ID:=cpe:/a:phillip_lougher:squashfs
PKG_VERSION:=4.6.1
PKG_RELEASE=1
PKG_RELEASE=2
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL:=https://github.com/plougher/squashfs-tools

68
tools/squashfs4/patches/100-xz_wrapper-support-multiple-lzma-configuration-optio.patch
View File

@ -1,22 +1,24 @@
From f49793cfbd72fdc40ab75dbffef42dca774701d1 Mon Sep 17 00:00:00 2001
From dcb976fe4ee40e4bac8ae0dcc836629c625a6fd4 Mon Sep 17 00:00:00 2001
From: Christian Marangi <ansuelsmth@gmail.com>
Date: Fri, 14 Oct 2022 15:59:16 +0200
Subject: [PATCH] xz_wrapper: support multiple lzma configuration options
Add option to configure preset, lc, lp and pb lzma parameters.
-Xpreset can be both a level or set to 'extreme' to use the lzma extreme
compression options.
-Xpreset can be used to set the compression level.
-Xe can be used to set the 'EXTREME' flag to use the lzma compression
options tweaking additional settings on top of the compression level set.
New option added:
-Xpreset
-Xe
-Xlc
-Xlp
-Xpb
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
squashfs-tools/xz_wrapper.c | 112 +++++++++++++++++++++++++++++++++++-
1 file changed, 109 insertions(+), 3 deletions(-)
squashfs-tools/xz_wrapper.c | 119 ++++++++++++++++++++++++++++++++++--
1 file changed, 115 insertions(+), 4 deletions(-)
--- a/squashfs-tools/xz_wrapper.c
+++ b/squashfs-tools/xz_wrapper.c
@ -53,26 +55,26 @@ Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+ long val;
+
+ if(argc < 2) {
+ fprintf(stderr, "xz: -Xpreset missing preset-level\n");
+ fprintf(stderr, "xz: -Xpreset missing preset-level "
+ "(valid value 0-9)\n");
+ goto failed;
+ }
+
+ if (strcmp(argv[1], "extreme") == 0) {
+ preset = LZMA_PRESET_EXTREME;
+
+ return 1;
+ }
+
+ val = strtol(argv[1], &b, 10);
+ if ((int) val < 0 || (int) val & ~LZMA_PRESET_LEVEL_MASK) {
+ if (*b != '\0' || (int) val < 0 || (int) val & ~LZMA_PRESET_LEVEL_MASK) {
+ fprintf(stderr, "xz: -Xpreset can't be "
+ "negative or more than the max preset\n");
+ goto failed;
+ }
+
+ preset = (int) val;
+ preset &= ~LZMA_PRESET_LEVEL_MASK;
+ preset |= (int) val;
+
+ return 1;
+ } else if(strcmp(argv[0], "-Xe") == 0) {
+ preset |= LZMA_PRESET_EXTREME;
+
+ return 0;
+ } else if(strcmp(argv[0], "-Xlc") == 0) {
+ char *b;
+ long val;
@ -83,7 +85,7 @@ Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+ }
+
+ val = strtol(argv[1], &b, 10);
+ if ((int) val < LZMA_LCLP_MIN || (int) val > LZMA_LCLP_MAX) {
+ if (*b != '\0' || (int) val < LZMA_LCLP_MIN || (int) val > LZMA_LCLP_MAX) {
+ fprintf(stderr, "xz: -Xlc invalid value\n");
+ goto failed;
+ }
@ -101,8 +103,8 @@ Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+ }
+
+ val = strtol(argv[1], &b, 10);
+ if ((int) val < LZMA_LCLP_MIN || (int) val > LZMA_LCLP_MAX) {
+ fprintf(stderr, "xz: -Xlc invalid value\n");
+ if (*b != '\0' || (int) val < LZMA_LCLP_MIN || (int) val > LZMA_LCLP_MAX) {
+ fprintf(stderr, "xz: -Xlp invalid value\n");
+ goto failed;
+ }
+
@ -119,8 +121,8 @@ Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
+ }
+
+ val = strtol(argv[1], &b, 10);
+ if ((int) val < LZMA_PB_MIN || (int) val > LZMA_PB_MAX) {
+ fprintf(stderr, "xz: -Xlc invalid value\n");
+ if (*b != '\0' || (int) val < LZMA_PB_MIN || (int) val > LZMA_PB_MAX) {
+ fprintf(stderr, "xz: -Xpb invalid value\n");
+ goto failed;
+ }
+
@ -135,8 +137,9 @@ Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
struct filter *filter = &stream->filter[i];
- if(lzma_lzma_preset(&stream->opt, LZMA_PRESET_DEFAULT))
+ if(lzma_lzma_preset(&stream->opt, preset))
goto failed;
- goto failed;
+ if(lzma_lzma_preset(&stream->opt, preset))
+ goto failed;
stream->opt.dict_size = stream->dictionary_size;
@ -152,16 +155,33 @@ Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
filter->length = 0;
res = lzma_stream_buffer_encode(filter->filter,
LZMA_CHECK_CRC32, NULL, src, size, filter->buffer,
@@ -521,6 +617,12 @@ static void xz_usage(FILE *stream)
@@ -521,13 +617,28 @@ static void xz_usage(FILE *stream)
fprintf(stream, " header as either 2^n or as 2^n+2^(n+1).\n\t\t");
fprintf(stream, "Example dict-sizes are 75%%, 50%%, 37.5%%, 25%%, or");
fprintf(stream, " 32K, 16K, 8K\n\t\tetc.\n");
+ fprintf(stream, "\t -Xpreset <preset-level or extreme>\n");
+ fprintf(stream, "\t -Xpreset <preset-level>\n");
+ fprintf(stream, "\t\tUse <preset-value> as the custom preset to use");
+ fprintf(stream, " on compress. Can be a level number or extreme.\n");
+ fprintf(stream, " on compress.\n\t\t<preset-level> should be 0 .. 9");
+ fprintf(stream, " (default 6)\n");
+ fprintf(stream, "\t -Xe\n");
+ fprintf(stream, "\t\tEnable additional compression settings by passing");
+ fprintf(stream, " the EXTREME\n\t\tflag to the compression flags.\n");
+ fprintf(stream, "\t -Xlc <value>\n");
+ fprintf(stream, "\t -Xlp <value>\n");
+ fprintf(stream, "\t -Xpb <value>\n");
}
static int option_args(char *option)
{
if(strcmp(option, "-Xbcj") == 0 ||
- strcmp(option, "-Xdict-size") == 0)
+ strcmp(option, "-Xdict-size") == 0 ||
+ strcmp(option, "-Xpreset") == 0 ||
+ strcmp(option, "-Xe") == 0 ||
+ strcmp(option, "-Xlc") == 0 ||
+ strcmp(option, "-Xlp") == 0 ||
+ strcmp(option, "-Xpb") == 0)
return 1;
return 0;