#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int /*<<< orphan*/ EXIT_FAILURE;
int /*<<< orphan*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *, ...);
int /*<<< orphan*/ stderr;
void usage(char *pname) {
  fprintf(stderr, "Usage: %s [options] cmd [arg...]\n\n", pname);
  fprintf(stderr, "Create a child process that executes a shell "
                  "command in a new user namespace,\n"
                  "and possibly also other new namespace(s).\n\n");
  fprintf(stderr, "Options can be:\n\n");
  fprintf(stderr, "    %s", "-C          New cgroup namespace\n");
  ;
  fprintf(stderr, "    %s", "-i          New IPC namespace\n");
  ;
  fprintf(stderr, "    %s", "-m          New mount namespace\n");
  ;
  fprintf(stderr, "    %s", "-n          New network namespace\n");
  ;
  fprintf(stderr, "    %s", "-p          New PID namespace\n");
  ;
  fprintf(stderr, "    %s", "-u          New UTS namespace\n");
  ;
  fprintf(stderr, "    %s", "-U          New user namespace\n");
  ;
  fprintf(stderr, "    %s", "-M uid_map  Specify UID map for user namespace\n");
  ;
  fprintf(stderr, "    %s", "-G gid_map  Specify GID map for user namespace\n");
  ;
  fprintf(stderr, "    %s",
          "-D          Do not write \"deny\" to /proc/PID/setgroups before\n");
  ;
  fprintf(stderr, "    %s", "            updating GID map\n");
  ;
  fprintf(stderr, "    %s",
          "-z          Map user's UID and GID to 0 in user namespace\n");
  ;
  fprintf(stderr, "    %s",
          "            (equivalent to: -M '0 <uid> 1' -G '0 <gid> 1')\n");
  ;
  fprintf(stderr, "    %s", "-v          Display verbose messages\n");
  ;
  fprintf(stderr, "    %s", "\n");
  ;
  fprintf(stderr, "    %s", "If -z, -M, or -G is specified, -U is required.\n");
  ;
  fprintf(stderr, "    %s",
          "It is not permitted to specify both -z and either -M or -G.\n");
  ;
  fprintf(stderr, "    %s", "\n");
  ;
  fprintf(stderr, "    %s",
          "Map strings for -M and -G consist of records of the form:\n");
  ;
  fprintf(stderr, "    %s", "\n");
  ;
  fprintf(stderr, "    %s", "    ID-inside-ns   ID-outside-ns   len\n");
  ;
  fprintf(stderr, "    %s", "\n");
  ;
  fprintf(stderr, "    %s",
          "A map string can contain multiple records, separated"
          " by commas;\n");
  ;
  fprintf(stderr, "    %s",
          "the commas are replaced by newlines before writing"
          " to map files.\n");
  ;
  exit(EXIT_FAILURE);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2ead(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xec0(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e92(%rip),%rax
mov    (%rax),%edi
lea    0xecc(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e7b(%rip),%rax
mov    (%rax),%edi
lea    0xf2f(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e64(%rip),%rax
mov    (%rax),%edi
lea    0xf2a(%rip),%rsi
lea    0xf2a(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e46(%rip),%rax
mov    (%rax),%edi
lea    0xf0c(%rip),%rsi
lea    0xf2e(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e28(%rip),%rax
mov    (%rax),%edi
lea    0xeee(%rip),%rsi
lea    0xf2f(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e0a(%rip),%rax
mov    (%rax),%edi
lea    0xed0(%rip),%rsi
lea    0xf32(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2dec(%rip),%rax
mov    (%rax),%edi
lea    0xeb2(%rip),%rsi
lea    0xf37(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2dce(%rip),%rax
mov    (%rax),%edi
lea    0xe94(%rip),%rsi
lea    0xf38(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2db0(%rip),%rax
mov    (%rax),%edi
lea    0xe76(%rip),%rsi
lea    0xf39(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2d92(%rip),%rax
mov    (%rax),%edi
lea    0xe58(%rip),%rsi
lea    0xf3b(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2d74(%rip),%rax
mov    (%rax),%edi
lea    0xe3a(%rip),%rsi
lea    0xf4d(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2d56(%rip),%rax
mov    (%rax),%edi
lea    0xe1c(%rip),%rsi
lea    0xf5f(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2d38(%rip),%rax
mov    (%rax),%edi
lea    0xdfe(%rip),%rsi
lea    0xf80(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2d1a(%rip),%rax
mov    (%rax),%edi
lea    0xde0(%rip),%rsi
lea    0xf80(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2cfc(%rip),%rax
mov    (%rax),%edi
lea    0xdc2(%rip),%rsi
lea    0xf9d(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2cde(%rip),%rax
mov    (%rax),%edi
lea    0xda4(%rip),%rsi
lea    0xfbb(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2cc0(%rip),%rax
mov    (%rax),%edi
lea    0xd86(%rip),%rsi
lea    0xd6b(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2ca2(%rip),%rax
mov    (%rax),%edi
lea    0xd68(%rip),%rsi
lea    0xfa5(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2c84(%rip),%rax
mov    (%rax),%edi
lea    0xd4a(%rip),%rsi
lea    0xfb7(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2c66(%rip),%rax
mov    (%rax),%edi
lea    0xd2c(%rip),%rsi
lea    0xd11(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2c48(%rip),%rax
mov    (%rax),%edi
lea    0xd0e(%rip),%rsi
lea    0xfb8(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2c2a(%rip),%rax
mov    (%rax),%edi
lea    0xcf0(%rip),%rsi
lea    0xcd5(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2c0c(%rip),%rax
mov    (%rax),%edi
lea    0xcd2(%rip),%rsi
lea    0xfb7(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2bee(%rip),%rax
mov    (%rax),%edi
lea    0xcb4(%rip),%rsi
lea    0xc99(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2bd0(%rip),%rax
mov    (%rax),%edi
lea    0xc96(%rip),%rsi
lea    0xfa3(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2bb2(%rip),%rax
mov    (%rax),%edi
lea    0xc78(%rip),%rsi
lea    0xfc6(%rip),%rdx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2b8c(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %r15
push   %r14
push   %rbx
mov    %rdi,%rdx
mov    0x2eb1(%rip),%r15
mov    (%r15),%edi
lea    0xec7(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xed9(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf42(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf43(%rip),%rbx
lea    0xf43(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf51(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf5c(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf69(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf78(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf83(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf8e(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xf9a(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xfb6(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xfd2(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xffd(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x1007(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x102e(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x1056(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0xe10(%rip),%r14
mov    %rbx,%rsi
mov    %r14,%rdx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x1051(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x106d(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
mov    %rbx,%rsi
mov    %r14,%rdx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x1086(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
mov    %rbx,%rsi
mov    %r14,%rdx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x109d(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
mov    %rbx,%rsi
mov    %r14,%rdx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x10a1(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%r15),%edi
lea    0x10ce(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    0x2c91(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [35 x i8] c"Usage: %s [options] cmd [arg...]\0A\0A\00"
@.str.1 = [122 x i8] c"Create a child process that executes a shell command in a new user namespace,\0Aand possibly also other new namespace(s).\0A\0A\00"
@.str.2 = [18 x i8] c"Options can be:\0A\0A\00"
@.str.3 = [7 x i8] c" %s\00"
@.str.4 = [34 x i8] c"-C New cgroup namespace\0A\00"
@.str.5 = [31 x i8] c"-i New IPC namespace\0A\00"
@.str.6 = [33 x i8] c"-m New mount namespace\0A\00"
@.str.7 = [35 x i8] c"-n New network namespace\0A\00"
@.str.8 = [31 x i8] c"-p New PID namespace\0A\00"
@.str.9 = [31 x i8] c"-u New UTS namespace\0A\00"
@.str.10 = [32 x i8] c"-U New user namespace\0A\00"
@.str.11 = [48 x i8] c"-M uid_map Specify UID map for user namespace\0A\00"
@.str.12 = [48 x i8] c"-G gid_map Specify GID map for user namespace\0A\00"
@.str.13 = [63 x i8] c"-D Do not write \22deny\22 to /proc/PID/setgroups before\0A\00"
@.str.14 = [30 x i8] c" updating GID map\0A\00"
@.str.15 = [59 x i8] c"-z Map user's UID and GID to 0 in user namespace\0A\00"
@.str.16 = [60 x i8] c" (equivalent to: -M '0 <uid> 1' -G '0 <gid> 1')\0A\00"
@.str.17 = [38 x i8] c"-v Display verbose messages\0A\00"
@.str.18 = [2 x i8] c"\0A\00"
@.str.19 = [48 x i8] c"If -z, -M, or -G is specified, -U is required.\0A\00"
@.str.20 = [61 x i8] c"It is not permitted to specify both -z and either -M or -G.\0A\00"
@.str.21 = [59 x i8] c"Map strings for -M and -G consist of records of the form:\0A\00"
@.str.22 = [40 x i8] c" ID-inside-ns ID-outside-ns len\0A\00"
@.str.23 = [65 x i8] c"A map string can contain multiple records, separated by commas;\0A\00"
@.str.24 = [66 x i8] c"the commas are replaced by newlines before writing to map files.\0A\00"
@EXIT_FAILURE = global i32 0
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i32, i32* @stderr
%4 = load i8*, i8** %2
%5 = call i32 (i32, i8*, ...) @fprintf(i32 %3, i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = load i32, i32* @stderr
%7 = call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([122 x i8], [122 x i8]* @.str.1, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.4, i64 0, i64 0))
%12 = load i32, i32* @stderr
%13 = call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.5, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.6, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.7, i64 0, i64 0))
%18 = load i32, i32* @stderr
%19 = call i32 (i32, i8*, ...) @fprintf(i32 %18, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.8, i64 0, i64 0))
%20 = load i32, i32* @stderr
%21 = call i32 (i32, i8*, ...) @fprintf(i32 %20, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.9, i64 0, i64 0))
%22 = load i32, i32* @stderr
%23 = call i32 (i32, i8*, ...) @fprintf(i32 %22, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.10, i64 0, i64 0))
%24 = load i32, i32* @stderr
%25 = call i32 (i32, i8*, ...) @fprintf(i32 %24, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.11, i64 0, i64 0))
%26 = load i32, i32* @stderr
%27 = call i32 (i32, i8*, ...) @fprintf(i32 %26, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.12, i64 0, i64 0))
%28 = load i32, i32* @stderr
%29 = call i32 (i32, i8*, ...) @fprintf(i32 %28, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.13, i64 0, i64 0))
%30 = load i32, i32* @stderr
%31 = call i32 (i32, i8*, ...) @fprintf(i32 %30, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.14, i64 0, i64 0))
%32 = load i32, i32* @stderr
%33 = call i32 (i32, i8*, ...) @fprintf(i32 %32, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str.15, i64 0, i64 0))
%34 = load i32, i32* @stderr
%35 = call i32 (i32, i8*, ...) @fprintf(i32 %34, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @.str.16, i64 0, i64 0))
%36 = load i32, i32* @stderr
%37 = call i32 (i32, i8*, ...) @fprintf(i32 %36, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.17, i64 0, i64 0))
%38 = load i32, i32* @stderr
%39 = call i32 (i32, i8*, ...) @fprintf(i32 %38, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.18, i64 0, i64 0))
%40 = load i32, i32* @stderr
%41 = call i32 (i32, i8*, ...) @fprintf(i32 %40, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.19, i64 0, i64 0))
%42 = load i32, i32* @stderr
%43 = call i32 (i32, i8*, ...) @fprintf(i32 %42, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([61 x i8], [61 x i8]* @.str.20, i64 0, i64 0))
%44 = load i32, i32* @stderr
%45 = call i32 (i32, i8*, ...) @fprintf(i32 %44, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.18, i64 0, i64 0))
%46 = load i32, i32* @stderr
%47 = call i32 (i32, i8*, ...) @fprintf(i32 %46, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str.21, i64 0, i64 0))
%48 = load i32, i32* @stderr
%49 = call i32 (i32, i8*, ...) @fprintf(i32 %48, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.18, i64 0, i64 0))
%50 = load i32, i32* @stderr
%51 = call i32 (i32, i8*, ...) @fprintf(i32 %50, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.22, i64 0, i64 0))
%52 = load i32, i32* @stderr
%53 = call i32 (i32, i8*, ...) @fprintf(i32 %52, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.18, i64 0, i64 0))
%54 = load i32, i32* @stderr
%55 = call i32 (i32, i8*, ...) @fprintf(i32 %54, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str.23, i64 0, i64 0))
%56 = load i32, i32* @stderr
%57 = call i32 (i32, i8*, ...) @fprintf(i32 %56, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([66 x i8], [66 x i8]* @.str.24, i64 0, i64 0))
%58 = load i32, i32* @EXIT_FAILURE
%59 = call i32 @exit(i32 %58)
unreachable
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [35 x i8] c"Usage: %s [options] cmd [arg...]\0A\0A\00"
@.str.1 = [122 x i8] c"Create a child process that executes a shell command in a new user namespace,\0Aand possibly also other new namespace(s).\0A\0A\00"
@.str.2 = [18 x i8] c"Options can be:\0A\0A\00"
@.str.3 = [7 x i8] c" %s\00"
@.str.4 = [34 x i8] c"-C New cgroup namespace\0A\00"
@.str.5 = [31 x i8] c"-i New IPC namespace\0A\00"
@.str.6 = [33 x i8] c"-m New mount namespace\0A\00"
@.str.7 = [35 x i8] c"-n New network namespace\0A\00"
@.str.8 = [31 x i8] c"-p New PID namespace\0A\00"
@.str.9 = [31 x i8] c"-u New UTS namespace\0A\00"
@.str.10 = [32 x i8] c"-U New user namespace\0A\00"
@.str.11 = [48 x i8] c"-M uid_map Specify UID map for user namespace\0A\00"
@.str.12 = [48 x i8] c"-G gid_map Specify GID map for user namespace\0A\00"
@.str.13 = [63 x i8] c"-D Do not write \22deny\22 to /proc/PID/setgroups before\0A\00"
@.str.14 = [30 x i8] c" updating GID map\0A\00"
@.str.15 = [59 x i8] c"-z Map user's UID and GID to 0 in user namespace\0A\00"
@.str.16 = [60 x i8] c" (equivalent to: -M '0 <uid> 1' -G '0 <gid> 1')\0A\00"
@.str.17 = [38 x i8] c"-v Display verbose messages\0A\00"
@.str.18 = [2 x i8] c"\0A\00"
@.str.19 = [48 x i8] c"If -z, -M, or -G is specified, -U is required.\0A\00"
@.str.20 = [61 x i8] c"It is not permitted to specify both -z and either -M or -G.\0A\00"
@.str.21 = [59 x i8] c"Map strings for -M and -G consist of records of the form:\0A\00"
@.str.22 = [40 x i8] c" ID-inside-ns ID-outside-ns len\0A\00"
@.str.23 = [65 x i8] c"A map string can contain multiple records, separated by commas;\0A\00"
@.str.24 = [66 x i8] c"the commas are replaced by newlines before writing to map files.\0A\00"
@EXIT_FAILURE = global i32 0
define void @usage(i8* %0) {
%2 = load i32, i32* @stderr
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str, i64 0, i64 0), i8* %0)
%4 = load i32, i32* @stderr
%5 = tail call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([122 x i8], [122 x i8]* @.str.1, i64 0, i64 0))
%6 = load i32, i32* @stderr
%7 = tail call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = tail call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.4, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = tail call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.5, i64 0, i64 0))
%12 = load i32, i32* @stderr
%13 = tail call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.6, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = tail call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.7, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = tail call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.8, i64 0, i64 0))
%18 = load i32, i32* @stderr
%19 = tail call i32 (i32, i8*, ...) @fprintf(i32 %18, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.9, i64 0, i64 0))
%20 = load i32, i32* @stderr
%21 = tail call i32 (i32, i8*, ...) @fprintf(i32 %20, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.10, i64 0, i64 0))
%22 = load i32, i32* @stderr
%23 = tail call i32 (i32, i8*, ...) @fprintf(i32 %22, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.11, i64 0, i64 0))
%24 = load i32, i32* @stderr
%25 = tail call i32 (i32, i8*, ...) @fprintf(i32 %24, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.12, i64 0, i64 0))
%26 = load i32, i32* @stderr
%27 = tail call i32 (i32, i8*, ...) @fprintf(i32 %26, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.13, i64 0, i64 0))
%28 = load i32, i32* @stderr
%29 = tail call i32 (i32, i8*, ...) @fprintf(i32 %28, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.14, i64 0, i64 0))
%30 = load i32, i32* @stderr
%31 = tail call i32 (i32, i8*, ...) @fprintf(i32 %30, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str.15, i64 0, i64 0))
%32 = load i32, i32* @stderr
%33 = tail call i32 (i32, i8*, ...) @fprintf(i32 %32, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([60 x i8], [60 x i8]* @.str.16, i64 0, i64 0))
%34 = load i32, i32* @stderr
%35 = tail call i32 (i32, i8*, ...) @fprintf(i32 %34, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.17, i64 0, i64 0))
%36 = load i32, i32* @stderr
%37 = tail call i32 (i32, i8*, ...) @fprintf(i32 %36, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.18, i64 0, i64 0))
%38 = load i32, i32* @stderr
%39 = tail call i32 (i32, i8*, ...) @fprintf(i32 %38, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str.19, i64 0, i64 0))
%40 = load i32, i32* @stderr
%41 = tail call i32 (i32, i8*, ...) @fprintf(i32 %40, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([61 x i8], [61 x i8]* @.str.20, i64 0, i64 0))
%42 = load i32, i32* @stderr
%43 = tail call i32 (i32, i8*, ...) @fprintf(i32 %42, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.18, i64 0, i64 0))
%44 = load i32, i32* @stderr
%45 = tail call i32 (i32, i8*, ...) @fprintf(i32 %44, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([59 x i8], [59 x i8]* @.str.21, i64 0, i64 0))
%46 = load i32, i32* @stderr
%47 = tail call i32 (i32, i8*, ...) @fprintf(i32 %46, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.18, i64 0, i64 0))
%48 = load i32, i32* @stderr
%49 = tail call i32 (i32, i8*, ...) @fprintf(i32 %48, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.22, i64 0, i64 0))
%50 = load i32, i32* @stderr
%51 = tail call i32 (i32, i8*, ...) @fprintf(i32 %50, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.18, i64 0, i64 0))
%52 = load i32, i32* @stderr
%53 = tail call i32 (i32, i8*, ...) @fprintf(i32 %52, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([65 x i8], [65 x i8]* @.str.23, i64 0, i64 0))
%54 = load i32, i32* @stderr
%55 = tail call i32 (i32, i8*, ...) @fprintf(i32 %54, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([66 x i8], [66 x i8]* @.str.24, i64 0, i64 0))
%56 = load i32, i32* @EXIT_FAILURE
%57 = tail call i32 @exit(i32 %56)
unreachable
}