#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(int /*<<< orphan*/);
int /*<<< orphan*/ printf(char *, ...);
void usage(char *prog) {
  printf("\nThis program wraps library calls to enable binaries to operate on "
         "images with various formats. NOTE: Ensure that libio_hooker.so is in "
         "your LD_LIBRARY_PATH before running this wrapper. \n\n");
  printf("Usage: %s -i subsys -o option prog arg1 arg2 arg3...\n", prog);
  printf("\t-i subsys: The name of a subsystem to use (help for a list)\n");
  printf("\t-o optionstr: The option string for the subsystem (help for an "
         "example)\n");
  printf("\t-f wrapped filename: All wrapped filenames will start with this "
         "string. This is useful for programs that need to open other files as "
         "well as the target file (for example /usr/bin/file needs to open "
         "magic files as well).\n");
  exit(0);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xecd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xf78(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xfa0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xfd0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0x100c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %edi,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rbx
lea    0xefb(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb9(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xf9a(%rip),%rdi
call   1030 <puts@plt>
lea    0xfcb(%rip),%rdi
call   1030 <puts@plt>
lea    0x1008(%rip),%rdi
call   1030 <puts@plt>
xor    %edi,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [189 x i8] c"\0AThis program wraps library calls to enable binaries to operate on images with various formats. NOTE: Ensure that libio_hooker.so is in your LD_LIBRARY_PATH before running this wrapper. \0A\0A\00"
@.str.1 = [54 x i8] c"Usage: %s -i subsys -o option prog arg1 arg2 arg3...\0A\00"
@.str.2 = [62 x i8] c"\09-i subsys: The name of a subsystem to use (help for a list)\0A\00"
@.str.3 = [74 x i8] c"\09-o optionstr: The option string for the subsystem (help for an example)\0A\00"
@.str.4 = [222 x i8] c"\09-f wrapped filename: All wrapped filenames will start with this string. This is useful for programs that need to open other files as well as the target file (for example /usr/bin/file needs to open magic files as well).\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([189 x i8], [189 x i8]* @.str, i64 0, i64 0))
%4 = load i8*, i8** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([54 x i8], [54 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([62 x i8], [62 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([74 x i8], [74 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([222 x i8], [222 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 @exit(i32 0)
unreachable
}

LLVM IR (-O2):
@.str.1 = [54 x i8] c"Usage: %s -i subsys -o option prog arg1 arg2 arg3...\0A\00"
@str = [188 x i8] c"\0AThis program wraps library calls to enable binaries to operate on images with various formats. NOTE: Ensure that libio_hooker.so is in your LD_LIBRARY_PATH before running this wrapper. \0A\00"
@str.5 = [61 x i8] c"\09-i subsys: The name of a subsystem to use (help for a list)\00"
@str.6 = [73 x i8] c"\09-o optionstr: The option string for the subsystem (help for an example)\00"
@str.7 = [221 x i8] c"\09-f wrapped filename: All wrapped filenames will start with this string. This is useful for programs that need to open other files as well as the target file (for example /usr/bin/file needs to open magic files as well).\00"
define void @usage(i8* %0) {
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([188 x i8], [188 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([54 x i8], [54 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([61 x i8], [61 x i8]* @str.5, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([73 x i8], [73 x i8]* @str.6, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([221 x i8], [221 x i8]* @str.7, i64 0, i64 0))
%7 = tail call i32 @exit(i32 0)
unreachable
}