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authorJohn Crispin <john@openwrt.org>2015-12-11 15:07:15 +0000
committerJohn Crispin <john@openwrt.org>2015-12-11 15:07:15 +0000
commitfd1c1b491828bb66eb2aa06b2c9f4a4e86ce661b (patch)
tree2caa409227f84f5368ca8ec5a338f158dc1a6aa6 /tools/squashfs
parent725fc09cec4c310d06ca17267775acc5c9aa4033 (diff)
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tools/squashfs: add argument -fixed-time to set all timestamps
-fixed-time <timestamp> set mkfs-timestamp and file-mtime to this timestamp. Reproducible builds requires the removal of all timestamp or setting all to a specific one. Signed-off-by: Alexander Couzens <lynxis@fe80.eu> SVN-Revision: 47858
Diffstat (limited to 'tools/squashfs')
-rw-r--r--tools/squashfs/patches/120-add-fixed-timestamp-support.patch79
1 files changed, 79 insertions, 0 deletions
diff --git a/tools/squashfs/patches/120-add-fixed-timestamp-support.patch b/tools/squashfs/patches/120-add-fixed-timestamp-support.patch
new file mode 100644
index 0000000..e2f4bb2
--- /dev/null
+++ b/tools/squashfs/patches/120-add-fixed-timestamp-support.patch
@@ -0,0 +1,79 @@
+--- a/squashfs-tools/mksquashfs.c
++++ b/squashfs-tools/mksquashfs.c
+@@ -117,6 +117,9 @@ unsigned int inode_bytes = 0, inode_size
+ char *data_cache = NULL;
+ unsigned int cache_bytes = 0, cache_size = 0, inode_count = 0;
+
++/* override all timestamps */
++time_t fixed_time = -1;
++
+ /* in memory directory data */
+ #define I_COUNT_SIZE 128
+ #define DIR_ENTRIES 32
+@@ -1554,6 +1557,11 @@ void dir_scan(squashfs_inode *inode, cha
+ perror(buffer);
+ return;
+ }
++
++ /* override timestamp of lstat if fixed_time is given */
++ if(fixed_time != -1)
++ inode_info->buf.st_mtime = fixed_time;
++
+ if(sorted)
+ sort_files_and_write(dir_info);
+ dir_scan2(inode, dir_info);
+@@ -1582,6 +1590,10 @@ struct dir_info *dir_scan1(char *pathnam
+ perror(buffer);
+ continue;
+ }
++
++ if(fixed_time != -1)
++ buf.st_mtime = fixed_time;
++
+ if(excluded(filename, &buf))
+ continue;
+
+@@ -1621,6 +1633,9 @@ int dir_scan2(squashfs_inode *inode, str
+ char *dir_name = dir_ent->name;
+ unsigned int inode_number = ((buf->st_mode & S_IFMT) == S_IFDIR) ? dir_ent->inode->inode_number : dir_ent->inode->inode_number + dir_inode_no;
+
++ if(fixed_time != -1)
++ buf->st_mtime = fixed_time;
++
+ if(dir_ent->inode->inode == SQUASHFS_INVALID_BLK) {
+ switch(buf->st_mode & S_IFMT) {
+ case S_IFREG:
+@@ -1898,6 +1913,16 @@ int main(int argc, char *argv[])
+ exit(1);
+ }
+ }
++ } else if(strcmp(argv[i], "-fixed-time") == 0) {
++ if(++i == argc) {
++ ERROR("%s: -fixed-time missing a timestamp\n", argv[0]);
++ exit(1);
++ }
++ fixed_time = strtoll(argv[i], &b, 10);
++ if(*b != '\0') {
++ ERROR("%s: -fixed-time has an invalid number\n", argv[0]);
++ exit(1);
++ }
+ } else if(strcmp(argv[i], "-noI") == 0 ||
+ strcmp(argv[i], "-noInodeCompression") == 0)
+ noI = TRUE;
+@@ -1967,6 +1992,7 @@ printOptions:
+ ERROR("-all-root\t\tmake all files owned by root\n");
+ ERROR("-force-uid uid\t\tset all file uids to uid\n");
+ ERROR("-force-gid gid\t\tset all file gids to gid\n");
++ ERROR("-fixed-time timestamp\tset all timestamps to timestamp\n");
+ ERROR("-le\t\t\tcreate a little endian filesystem\n");
+ ERROR("-be\t\t\tcreate a big endian filesystem\n");
+ ERROR("-nopad\t\t\tdo not pad filesystem to a multiple of 4K\n");
+@@ -2190,7 +2216,7 @@ printOptions:
+ sBlk.block_size = block_size;
+ sBlk.block_log = block_log;
+ sBlk.flags = SQUASHFS_MKFLAGS(noI, noD, check_data, noF, no_fragments, always_use_fragments, duplicate_checking);
+- sBlk.mkfs_time = time(NULL);
++ sBlk.mkfs_time = fixed_time != -1 ? fixed_time : time(NULL);
+
+ restore_filesystem:
+ write_fragment();