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[*] Initial strace run with jchroot on the command ./usr/sbin/e4crypt to identify missing areas

[*] Emulating binary name: e4crypt 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/0-50593792.squashfs_v4_le_extract (1/2)

[*] Using CPU config: 

1 brk(NULL) = 0x4001341c

1 uname(0x3ff1d900) = 0

1 access("/etc/ld.so.preload",R_OK) = 0

1 openat(AT_FDCWD,"/etc/ld.so.preload",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1d8d0) = 0

1 mmap2(NULL,19,PROT_READ|PROT_WRITE,MAP_PRIVATE,3,0) = 0x3f7cf000

1 close(3) = 0

1 munmap(0x3f7cf000,19) = 0

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/libuuid.so.1",O_RDONLY|O_LARGEFILE|O_CLOEXEC) = 3

1 read(3,0x3ff1d210,512) = 512

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1cf58) = 0

1 mmap2(NULL,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS,-1,0) = 0x3f7ce000

1 mmap2(NULL,86036,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f7b8000

1 mprotect(0x3f7bd000,61440,PROT_NONE) = 0

1 mmap2(0x3f7cc000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x4) = 0x3f7cc000

1 close(3) = 0

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

1 read(3,0x3ff1d200,512) = 512

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1cf48) = 0

1 mmap2(NULL,370012,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f75d000

1 mprotect(0x3f7a7000,61440,PROT_NONE) = 0

1 mmap2(0x3f7b6000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x49) = 0x3f7b6000

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(3,0x3ff1d1f0,512) = 512

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1cf38) = 0

1 mmap2(NULL,1148532,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f644000

1 mprotect(0x3f741000,61440,PROT_NONE) = 0

1 mmap2(0x3f750000,16384,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0xfc) = 0x3f750000

1 mmap2(0x3f754000,34420,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED,-1,0) = 0x3f754000

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(3,0x3ff1d1d0,512) = 512

1 statx(3,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1cf18) = 0

1 mmap2(NULL,73768,PROT_EXEC|PROT_READ,MAP_PRIVATE|MAP_DENYWRITE,3,0) = 0x3f631000

1 mprotect(0x3f633000,61440,PROT_NONE) = 0

1 mmap2(0x3f642000,8192,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_DENYWRITE|MAP_FIXED,3,0x1) = 0x3f642000

1 close(3) = 0

1 set_tid_address(0x3f7cf2f8) = 1

1 set_robust_list(0x3f7cf300,12) = -1 errno=38 (Function not implemented)

1 mprotect(0x3f750000,8192,PROT_READ) = 0

1 mprotect(0x3f642000,4096,PROT_READ) = 0

1 mprotect(0x3f7b6000,4096,PROT_READ) = 0

1 mprotect(0x3f7cc000,4096,PROT_READ) = 0

1 mprotect(0x40012000,4096,PROT_READ) = 0

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

1 ugetrlimit(3,1072814744,1064658228,1064682930,1,1064640100) = 0

1 statx(1,"",AT_EMPTY_PATH|AT_NO_AUTOMOUNT,STATX_BASIC_STATS,0x3ff1d910) = 0

1 brk(NULL) = 0x4001341c

1 brk(0x4003541c) = 0x4003541c

1 brk(0x40036000) = 0x40036000

1 write(1,0x40013428,321)Available commands:

  add_key              adds a key to the user's keyring

  get_policy           get the encryption for directories

  new_session          give the invoking process a new session keyring

  set_policy           sets a policy for directories

To get more information on a command, type 'e4crypt help cmd'

 = 321

1 exit_group(0)

[*] 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/0-50593792.squashfs_v4_le_extract/etc/ld.so.cache

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