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[*] Initial strace run with jchroot on the command ./usr/sbin/e2undo to identify missing areas

[*] Emulating binary name: e2undo in strace mode to identify missing areas (with jchroot)

[*] Emulator used: qemu-arm-static

[*] Chroot environment used: jchroot

[*] Using root directory: /logs/s115_usermode_emulator/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-80367616.squashfs_v4_le_extract (1/2)

[*] Using CPU config: 

1 brk(NULL) = 0x40004014

1 access("/etc/ld.so.preload",R_OK) = -1 errno=2 (No such file or directory)

1 openat(AT_FDCWD,"/etc/ld.so.cache",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = -1 errno=2 (No such file or directory)

1 openat(AT_FDCWD,"/usr/lib/tls/v8l/neon/vfp/libext2fs.so.2",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3

1 read(3,0x3ff1d158,512) = 512

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1ce70) = 0

1 mmap2(NULL,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS,-1,0) = 0x3f7dd000

1 mmap2(NULL,312700,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f790000

1 mmap2(0x3f7db000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x4a) = 0x3f7db000

1 close(3) = 0

1 openat(AT_FDCWD,"/usr/lib/tls/v8l/neon/vfp/libcom_err.so.2",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3

1 read(3,0x3ff1d148,512) = 512

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1ce60) = 0

1 mmap2(NULL,12328,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f78c000

1 mmap2(0x3f78e000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x1) = 0x3f78e000

1 close(3) = 0

1 openat(AT_FDCWD,"/usr/lib/tls/v8l/neon/vfp/libgcc_s.so.1",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3

1 read(3,0x3ff1d138,512) = 512

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1ce50) = 0

1 mmap2(NULL,102460,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f772000

1 mmap2(0x3f78a000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x18) = 0x3f78a000

1 close(3) = 0

1 openat(AT_FDCWD,"/usr/lib/tls/v8l/neon/vfp/libc.so.6",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3

1 read(3,0x3ff1d128,512) = 512

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1ce40) = 0

1 mmap2(NULL,1108064,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f663000

1 mmap2(0x3f765000,16384,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x101) = 0x3f765000

1 mmap2(0x3f769000,34912,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED,-1,0) = 0x3f769000

1 close(3) = 0

1 mmap2(NULL,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS,-1,0) = 0x3f661000

1 set_tid_address(0x3f7de3e8) = 1

1 set_robust_list(0x3f7de3ec,12) = -1 errno=38 (Function not implemented)

1 Unknown syscall 398

1 mprotect(0x3f765000,8192,PROT_READ) = 0

1 mprotect(0x3f78a000,4096,PROT_READ) = 0

1 mprotect(0x3f78e000,4096,PROT_READ) = 0

1 mprotect(0x3f7db000,4096,PROT_READ) = 0

1 mprotect(0x40003000,4096,PROT_READ) = 0

1 mprotect(0x3f7fd000,4096,PROT_READ) = 0

1 ugetrlimit(3,1072814552,1064769438,1064744708,1,1064726112) = 0

1 brk(NULL) = 0x40004014

1 brk(0x40025014) = 0x40025014

1 brk(0x40026000) = 0x40026000

1 write(2,0x3ff1b4e0,104)Usage: ./usr/sbin/e2undo [-f] [-h] [-n] [-o offset] [-v] [-z undo_file] <transaction file> <filesystem>

 = 104

1 exit_group(1)

[*] Identification of missing filesytem areas.

[*] Found missing area: /etc/ld.so.cache

[*] Trying to identify this missing file: ld.so.cache

[*] Missing file /logs/s115_usermode_emulator/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-80367616.squashfs_v4_le_extract/etc/ld.so.cache

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