squashfs4: make the lzma parameters configurable, and change the defaults for slightl...

SVN-Revision: 25530

diff --git a/tools/squashfs4/patches/130-dynamic_lzma_params.patch b/tools/squashfs4/patches/130-dynamic_lzma_params.patch
new file mode 100644 (file)
index 0000000..65fc3f6
--- /dev/null
+++ b/tools/squashfs4/patches/130-dynamic_lzma_params.patch
@@ -0,0 +1,91 @@
+--- a/squashfs-tools/lzma_wrapper.c
++++ b/squashfs-tools/lzma_wrapper.c
+@@ -20,6 +20,8 @@
+  */
+ 
+ #include <LzmaLib.h>
++#include <stdio.h>
++#include "compressor.h"
+ 
+ #define LZMA_HEADER_SIZE      (LZMA_PROPS_SIZE + 8)
+ 
+@@ -30,9 +32,18 @@
+       size_t props_size = LZMA_PROPS_SIZE,
+               outlen = block_size - LZMA_HEADER_SIZE;
+       int res;
++      int lc;
++      int lp;
++      int pb;
++
++      if (!comp_args || sscanf(comp_args, "%d:%d:%d", &lc, &lp, &pb) != 3) {
++              lc = 0;
++              lp = 2;
++              pb = 2;
++      }
+ 
+       res = LzmaCompress(d + LZMA_HEADER_SIZE, &outlen, s, size, d,
+-              &props_size, 5, block_size, 3, 0, 2, 32, 1);
++              &props_size, 5, block_size, lc, lp, pb, 32, 1);
+       
+       if(res == SZ_ERROR_OUTPUT_EOF) {
+               /*
+--- a/squashfs-tools/compressor.c
++++ b/squashfs-tools/compressor.c
+@@ -25,6 +25,7 @@
+ #include "compressor.h"
+ #include "squashfs_fs.h"
+ 
++char *comp_args = NULL;
+ extern int gzip_compress(void **, char *, char *, int, int, int *);
+ extern int gzip_uncompress(char *, char *, int, int, int *);
+ extern int lzma_compress(void **, char *, char *, int, int, int *);
+--- a/squashfs-tools/compressor.h
++++ b/squashfs-tools/compressor.h
+@@ -31,3 +31,4 @@
+ extern struct compressor *lookup_compressor(char *);
+ extern struct compressor *lookup_compressor_id(int);
+ extern void display_compressors(char *, char *);
++extern char *comp_args;
+--- a/squashfs-tools/mksquashfs.c
++++ b/squashfs-tools/mksquashfs.c
+@@ -4355,6 +4355,12 @@
+                               exit(1);
+                       }
+                       comp_name = argv[i];
++              } else if(strcmp(argv[i], "-comp_args") == 0) {
++                      if(++i == argc) {
++                              ERROR("%s: -comp_args missing compression arguments\n", argv[0]);
++                              exit(1);
++                      }
++                      comp_args = argv[i];
+               } else if(strcmp(argv[i], "-pf") == 0) {
+                       if(++i == argc) {
+                               ERROR("%s: -pf missing filename\n", argv[0]);
+@@ -4574,6 +4580,7 @@
+                               "[-e list of exclude\ndirs/files]\n", argv[0]);
+                       ERROR("\nFilesystem build options:\n");
+                       ERROR("-comp <comp>\t\tselect <comp> compression\n");
++                      ERROR("-comp_args <comp>\t\tselect compression arguments\n");
+                       ERROR("\t\t\tCompressors available:\n");
+                       display_compressors("\t\t\t", COMP_DEFAULT);
+                       ERROR("-b <block_size>\t\tset data block to "
+@@ -4736,7 +4743,8 @@
+               else if(strcmp(argv[i], "-root-becomes") == 0 ||
+                               strcmp(argv[i], "-sort") == 0 ||
+                               strcmp(argv[i], "-pf") == 0 ||
+-                              strcmp(argv[i], "-comp") == 0)
++                              strcmp(argv[i], "-comp") == 0 ||
++                              strcmp(argv[i], "-comp_args") == 0)
+                       i++;
+ 
+       if(i != argc) {
+@@ -4761,7 +4769,8 @@
+               else if(strcmp(argv[i], "-root-becomes") == 0 ||
+                               strcmp(argv[i], "-ef") == 0 ||
+                               strcmp(argv[i], "-pf") == 0 ||
+-                              strcmp(argv[i], "-comp") == 0)
++                              strcmp(argv[i], "-comp") == 0 ||
++                              strcmp(argv[i], "-comp_args") == 0)
+                       i++;
+ 
+ #ifdef SQUASHFS_TRACE

diff --git a/tools/squashfs4/patches/130-lzma_props.patch b/tools/squashfs4/patches/130-lzma_props.patch
deleted file mode 100644 (file)
index 3ac6b9b..0000000
--- a/tools/squashfs4/patches/130-lzma_props.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/squashfs-tools/lzma_wrapper.c
-+++ b/squashfs-tools/lzma_wrapper.c
-@@ -32,7 +32,7 @@ int lzma_compress(void **strm, char *des
-       int res;
- 
-       res = LzmaCompress(d + LZMA_HEADER_SIZE, &outlen, s, size, d,
--              &props_size, 5, block_size, 3, 0, 2, 32, 1);
-+              &props_size, 5, block_size, 1, 2, 2, 32, 1);
-       
-       if(res == SZ_ERROR_OUTPUT_EOF) {
-               /*