1  execve("./helloworld", ["./helloworld"], [/* 22 vars */]) = 0
 2  uname({sys="Linux", node="knuth", ...}) = 0
 3  brk(0)                                  = 0x81f7000
 4  access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
 5  open("/etc/ld.so.cache", O_RDONLY)      = 3
 6  fstat64(3, {st_mode=S_IFREG|0644, st_size=73856, ...}) = 0
 7  old_mmap(NULL, 73856, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7fed000
 8  close(3)                                = 0
 9  open("/lib/tls/libc.so.6", O_RDONLY)    = 3
10  read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 ?B\000"..., 512) = 512
11  fstat64(3, {st_mode=S_IFREG|0755, st_size=1454835, ...}) = 0
12  old_mmap(0x40f000, 1215644, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x40f000
13  old_mmap(0x532000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x123000) = 0x532000
14  old_mmap(0x536000, 7324, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x536000
15  close(3)                                = 0
16  old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fec000
17  mprotect(0x532000, 4096, PROT_READ)     = 0
18  mprotect(0x40b000, 4096, PROT_READ)     = 0
19  set_thread_area({entry_number:-1 -> 6, base_addr:0xb7fec940, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
20  munmap(0xb7fed000, 73856)               = 0
21  fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 3), ...}) = 0
22  mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7fff000
23  write(1, "Hello World \n", 13)          = 13
24  munmap(0xb7fff000, 4096)                = 0
25  exit_group(13)                          = ?