execve("/bin/cat", ["cat", "/dev/ttyUSB0"], [/* 25 vars */]) = 0
brk(0)                                  = 0x242b000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe1d5dc2000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe1d5dc0000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=107139, ...}) = 0
mmap(NULL, 107139, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fe1d5da5000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300\342\1\0\0\0\0\0@"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1375536, ...}) = 0
mmap(NULL, 3482232, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7fe1d5855000
mprotect(0x7fe1d599f000, 2093056, PROT_NONE) = 0
mmap(0x7fe1d5b9e000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x149000) = 0x7fe1d5b9e000
mmap(0x7fe1d5ba3000, 17016, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7fe1d5ba3000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe1d5da4000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fe1d5da3000
arch_prctl(ARCH_SET_FS, 0x7fe1d5da36e0) = 0
mprotect(0x7fe1d5b9e000, 12288, PROT_READ) = 0
munmap(0x7fe1d5da5000, 107139)          = 0
brk(0)                                  = 0x242b000
brk(0x244c000)                          = 0x244c000
open("/usr/lib/locale/locale-archive", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=1283184, ...}) = 0
mmap(NULL, 1283184, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fe1d5c69000
close(3)                                = 0
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
open("/dev/ttyUSB0", O_RDONLY)          = 3
fstat(3, {st_mode=S_IFCHR|0660, st_rdev=makedev(188, 0), ...}) = 0
read(3,  <unfinished ...>