#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", pname);
  fprintf(stderr, "Options can be:\n");
  fprintf(stderr, "    -f   fork() before executing cmd "
                  "(useful when unsharing PID namespace)\n");
  fprintf(stderr, "    -C   unshare cgroup namespace\n");
  fprintf(stderr, "    -i   unshare IPC namespace\n");
  fprintf(stderr, "    -m   unshare mount namespace\n");
  fprintf(stderr, "    -n   unshare network namespace\n");
  fprintf(stderr, "    -p   unshare PID namespace\n");
  fprintf(stderr, "    -u   unshare UTS namespace\n");
  fprintf(stderr, "    -U   unshare user namespace\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    0xecb(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e7b(%rip),%rax
mov    (%rax),%edi
lea    0xec5(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e64(%rip),%rax
mov    (%rax),%edi
lea    0xefa(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e4d(%rip),%rax
mov    (%rax),%edi
lea    0xf06(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e36(%rip),%rax
mov    (%rax),%edi
lea    0xf0f(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e1f(%rip),%rax
mov    (%rax),%edi
lea    0xf1a(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e08(%rip),%rax
mov    (%rax),%edi
lea    0xf27(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2df1(%rip),%rax
mov    (%rax),%edi
lea    0xf30(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2dda(%rip),%rax
mov    (%rax),%edi
lea    0xf39(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2dbb(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rdx
mov    0x2eb5(%rip),%rbx
mov    (%rbx),%edi
lea    0xecc(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xede(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xedf(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf1b(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf2e(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf3e(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf50(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf64(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf74(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf84(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    0x2e06(%rip),%rax
mov    (%rax),%edi
call   1040 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [34 x i8] c"Usage: %s [options] cmd [arg...]\0A\00"
@.str.1 = [17 x i8] c"Options can be:\0A\00"
@.str.2 = [76 x i8] c" -f fork() before executing cmd (useful when unsharing PID namespace)\0A\00"
@.str.3 = [35 x i8] c" -C unshare cgroup namespace\0A\00"
@.str.4 = [32 x i8] c" -i unshare IPC namespace\0A\00"
@.str.5 = [34 x i8] c" -m unshare mount namespace\0A\00"
@.str.6 = [36 x i8] c" -n unshare network namespace\0A\00"
@.str.7 = [32 x i8] c" -p unshare PID namespace\0A\00"
@.str.8 = [32 x i8] c" -u unshare UTS namespace\0A\00"
@.str.9 = [33 x i8] c" -U unshare user namespace\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 ([34 x i8], [34 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 ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([76 x i8], [76 x i8]* @.str.2, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([35 x i8], [35 x i8]* @.str.3, i64 0, i64 0))
%12 = load i32, i32* @stderr
%13 = call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.4, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.5, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.6, i64 0, i64 0))
%18 = load i32, i32* @stderr
%19 = call i32 (i32, i8*, ...) @fprintf(i32 %18, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.7, i64 0, i64 0))
%20 = load i32, i32* @stderr
%21 = call i32 (i32, i8*, ...) @fprintf(i32 %20, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.8, i64 0, i64 0))
%22 = load i32, i32* @stderr
%23 = call i32 (i32, i8*, ...) @fprintf(i32 %22, i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.9, i64 0, i64 0))
%24 = load i32, i32* @EXIT_FAILURE
%25 = call i32 @exit(i32 %24)
unreachable
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [34 x i8] c"Usage: %s [options] cmd [arg...]\0A\00"
@.str.1 = [17 x i8] c"Options can be:\0A\00"
@.str.2 = [76 x i8] c" -f fork() before executing cmd (useful when unsharing PID namespace)\0A\00"
@.str.3 = [35 x i8] c" -C unshare cgroup namespace\0A\00"
@.str.4 = [32 x i8] c" -i unshare IPC namespace\0A\00"
@.str.5 = [34 x i8] c" -m unshare mount namespace\0A\00"
@.str.6 = [36 x i8] c" -n unshare network namespace\0A\00"
@.str.7 = [32 x i8] c" -p unshare PID namespace\0A\00"
@.str.8 = [32 x i8] c" -u unshare UTS namespace\0A\00"
@.str.9 = [33 x i8] c" -U unshare user namespace\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 ([34 x i8], [34 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 ([17 x i8], [17 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 ([76 x i8], [76 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 ([35 x i8], [35 x i8]* @.str.3, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = tail call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.4, i64 0, i64 0))
%12 = load i32, i32* @stderr
%13 = tail call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.5, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = tail call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.6, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = tail call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.7, i64 0, i64 0))
%18 = load i32, i32* @stderr
%19 = tail call i32 (i32, i8*, ...) @fprintf(i32 %18, i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.8, i64 0, i64 0))
%20 = load i32, i32* @stderr
%21 = tail call i32 (i32, i8*, ...) @fprintf(i32 %20, i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.9, i64 0, i64 0))
%22 = load i32, i32* @EXIT_FAILURE
%23 = tail call i32 @exit(i32 %22)
unreachable
}