in lieu of gdb we already have strace and compared to freebsd.org it looks
a little messy here
# strace cp -ax / .
execve("/usr/bin/cp", ["cp", "-ax", "/", "."], 0x7ffcfb66c1e8 /* 19 vars
*/) = 0
brk(NULL) = 0x55f643e44000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f4fadccb000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=41615, ...},
AT_EMPTY_PATH) = 0
mmap(NULL, 41615, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f4fadcc0000
close(3) = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libselinux.so.1",
O_RDONLY|O_CLOEXEC) = 3
read(3,
"\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) =
832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=174312, ...},
AT_EMPTY_PATH) = 0
mmap(NULL, 186064, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f4fadc92000
mmap(0x7f4fadc99000, 110592, PROT_READ|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f4fadc99000
mmap(0x7f4fadcb4000, 32768, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE,
3, 0x22000) = 0x7f4fadcb4000
mmap(0x7f4fadcbc000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x29000) = 0x7f4fadcbc000
mmap(0x7f4fadcbe000, 5840, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f4fadcbe000
close(3) = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libacl.so.1", O_RDONLY|O_CLOEXEC) =
3
read(3,
"\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) =
832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=38832, ...},
AT_EMPTY_PATH) = 0
mmap(NULL, 41008, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f4fadc87000
mmap(0x7f4fadc89000, 20480, PROT_READ|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f4fadc89000
mmap(0x7f4fadc8e000, 8192, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE,
3, 0x7000) = 0x7f4fadc8e000
mmap(0x7f4fadc90000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8000) = 0x7f4fadc90000
close(3) = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libattr.so.1", O_RDONLY|O_CLOEXEC)
= 3
read(3,
"\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) =
832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=26544, ...},
AT_EMPTY_PATH) = 0
mmap(NULL, 28696, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f4fadc7f000
mmap(0x7f4fadc81000, 12288, PROT_READ|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f4fadc81000
mmap(0x7f4fadc84000, 4096, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE,
3, 0x5000) = 0x7f4fadc84000
mmap(0x7f4fadc85000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x7f4fadc85000
close(3) = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
read(3,
"\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20t\2\0\0\0\0\0"..., 832) =
832
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"...,
784, 64) = 784
newfstatat(3, "", {st_mode=S_IFREG|0755, st_size=1922136, ...},
AT_EMPTY_PATH) = 0
pread64(3, "\6\0\0\0\4\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0@\0\0\0\0\0\0\0"...,
784, 64) = 784
mmap(NULL, 1970000, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f4fada9e000
mmap(0x7f4fadac4000, 1396736, PROT_READ|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x26000) = 0x7f4fadac4000
mmap(0x7f4fadc19000, 339968, PROT_READ,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17b000) = 0x7f4fadc19000
mmap(0x7f4fadc6c000, 24576, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ce000) = 0x7f4fadc6c000
mmap(0x7f4fadc72000, 53072, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f4fadc72000
close(3) = 0
openat(AT_FDCWD, "/lib/x86_64-linux-gnu/libpcre2-8.so.0",
O_RDONLY|O_CLOEXEC) = 3
read(3,
"\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\0\0\0\0\0\0\0"..., 832) =
832
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=629384, ...},
AT_EMPTY_PATH) = 0
mmap(NULL, 627592, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) =
0x7f4fada04000
mmap(0x7f4fada06000, 438272, PROT_READ|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f4fada06000
mmap(0x7f4fada71000, 176128, PROT_READ,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6d000) = 0x7f4fada71000
mmap(0x7f4fada9c000, 8192, PROT_READ|PROT_WRITE,
MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x98000) = 0x7f4fada9c000
close(3) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f4fada02000
arch_prctl(ARCH_SET_FS, 0x7f4fada03500) = 0
set_tid_address(0x7f4fada037d0) = 1692
set_robust_list(0x7f4fada037e0, 24) = 0
rseq(0x7f4fada03e20, 0x20, 0, 0x53053053) = 0
mprotect(0x7f4fadc6c000, 16384, PROT_READ) = 0
mprotect(0x7f4fada9c000, 4096, PROT_READ) = 0
mprotect(0x7f4fadc85000, 4096, PROT_READ) = 0
mprotect(0x7f4fadc90000, 4096, PROT_READ) = 0
mprotect(0x7f4fadcbc000, 4096, PROT_READ) = 0
mprotect(0x55f613b93000, 4096, PROT_READ) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f4fada00000
mprotect(0x7f4fadcfe000, 8192, PROT_READ) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024,
rlim_max=RLIM64_INFINITY}) = 0
munmap(0x7f4fadcc0000, 41615) = 0
statfs("/sys/fs/selinux", {f_type=SYSFS_MAGIC, f_bsize=4096, f_blocks=0,
f_bfree=0, f_bavail=0, f_files=0, f_ffree=0, f_fsid={val=[0x4b67c3e7,
0x6a644193]}, f_namelen=255, f_frsize=4096, f_flags=ST_VALID|ST_RELATIME})
= 0
statfs("/selinux", 0x7ffc923d07d0) = -1 ENOENT (No such file or
directory)
getrandom("\xd2\xdd\x51\x49\x6c\x4f\x39\x6b", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55f643e44000
brk(0x55f643e65000) = 0x55f643e65000
openat(AT_FDCWD, "/proc/filesystems", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0444, st_size=0, ...}, AT_EMPTY_PATH) = 0
read(3, "nodev\tsysfs\nnodev\ttmpfs\nnodev\tbd"..., 1024) = 396
close(3) = 0
openat(AT_FDCWD, "/proc/mounts", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0444, st_size=0, ...}, AT_EMPTY_PATH) = 0
read(3, "/dev/vdc / btrfs rw,relatime,idm"..., 1024) = 1024
read(3, "w,nosuid,nodev,noexec,relatime,m"..., 1024) = 1024
read(3, "ev/snd/timer btrfs rw,relatime,d"..., 1024) = 1024
read(3, "_id=0,allow_other 0 0\nlxcfs /pro"..., 1024) = 1024
read(3, "sole devpts rw,nosuid,noexec,rel"..., 1024) = 1024
read(3, "up rw,nosuid,nodev,noexec,relati"..., 1024) = 644
read(3, "", 1024) = 0
close(3) = 0
access("/etc/selinux/config", F_OK) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=3048928, ...},
AT_EMPTY_PATH) = 0
mmap(NULL, 3048928, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f4fad600000
close(3) = 0
geteuid() = 0
newfstatat(AT_FDCWD, "/", {st_mode=S_IFDIR|0755, st_size=132, ...},
AT_SYMLINK_NOFOLLOW) = 0
newfstatat(AT_FDCWD, "", 0x7ffc923d0400, AT_SYMLINK_NOFOLLOW) = -1 ENOENT
(No such file or directory)
mkdirat(AT_FDCWD, "", 0700) = -1 ENOENT (No such file or
directory)
openat(AT_FDCWD, "/usr/share/locale/locale.alias", O_RDONLY|O_CLOEXEC) = 3
newfstatat(3, "", {st_mode=S_IFREG|0644, st_size=2996, ...}, AT_EMPTY_PATH)
= 0
read(3, "# Locale name alias data base.\n#"..., 4096) = 2996
read(3, "", 4096) = 0
close(3) = 0
openat(AT_FDCWD, "/usr/share/locale/en_US.UTF-8/LC_MESSAGES/coreutils.mo",
O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US.utf8/LC_MESSAGES/coreutils.mo",
O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US/LC_MESSAGES/coreutils.mo",
O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.UTF-8/LC_MESSAGES/coreutils.mo",
O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.utf8/LC_MESSAGES/coreutils.mo",
O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en/LC_MESSAGES/coreutils.mo", O_RDONLY)
= -1 ENOENT (No such file or directory)
write(2, "cp: ", 4cp: ) = 4
write(2, "cannot create directory './'", 28cannot create directory './') =
28
openat(AT_FDCWD, "/usr/share/locale/en_US.UTF-8/LC_MESSAGES/libc.mo",
O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US.utf8/LC_MESSAGES/libc.mo",
O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en_US/LC_MESSAGES/libc.mo", O_RDONLY) =
-1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.UTF-8/LC_MESSAGES/libc.mo",
O_RDONLY) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en.utf8/LC_MESSAGES/libc.mo", O_RDONLY)
= -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/usr/share/locale/en/LC_MESSAGES/libc.mo", O_RDONLY) = -1
ENOENT (No such file or directory)
write(2, ": No such file or directory", 27: No such file or directory) = 27
write(2, "\n", 1
) = 1
lseek(0, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek)
close(0) = 0
close(1) = 0
close(2) = 0
exit_group(1) = ?
+++ exited with 1 +++
