Llvm 使用setLocale时出现内存错误

为了使用llvm打印unicode字符，我在llvm ir中使用了setLocale：

call i8* @setlocale(i32 6, i8* getelementptr inbounds ([1 x i8]* @pe, i32 0, i32 0)) nounwind

其中@pe的定义如下：

@pe = private unnamed_addr constant [1 x i8] zeroinitializer, align 1

#0  0xb7728424 in __kernel_vsyscall ()
#1  0xb74aee71 in raise () from /lib/i386-linux-gnu/libc.so.6
#2  0xb74b234e in abort () from /lib/i386-linux-gnu/libc.so.6
#3  0xb74e5577 in ?? () from /lib/i386-linux-gnu/libc.so.6
#4  0xb74ef961 in ?? () from /lib/i386-linux-gnu/libc.so.6
#5  0xb74f128b in ?? () from /lib/i386-linux-gnu/libc.so.6
#6  0xb74f441d in free () from /lib/i386-linux-gnu/libc.so.6
#7  0xb74a6730 in ?? () from /lib/i386-linux-gnu/libc.so.6
#8  0xb74a5299 in ?? () from /lib/i386-linux-gnu/libc.so.6
#9  0xb74a4cd1 in setlocale () from /lib/i386-linux-gnu/libc.so.6
...

但是，我得到了以下错误：

*** glibc detected *** ./test/bin/executable: free(): invalid next size (fast): 0x08f93140 ***

我使用gdb调试程序，回溯如下：

@pe = private unnamed_addr constant [1 x i8] zeroinitializer, align 1

#0  0xb7728424 in __kernel_vsyscall ()
#1  0xb74aee71 in raise () from /lib/i386-linux-gnu/libc.so.6
#2  0xb74b234e in abort () from /lib/i386-linux-gnu/libc.so.6
#3  0xb74e5577 in ?? () from /lib/i386-linux-gnu/libc.so.6
#4  0xb74ef961 in ?? () from /lib/i386-linux-gnu/libc.so.6
#5  0xb74f128b in ?? () from /lib/i386-linux-gnu/libc.so.6
#6  0xb74f441d in free () from /lib/i386-linux-gnu/libc.so.6
#7  0xb74a6730 in ?? () from /lib/i386-linux-gnu/libc.so.6
#8  0xb74a5299 in ?? () from /lib/i386-linux-gnu/libc.so.6
#9  0xb74a4cd1 in setlocale () from /lib/i386-linux-gnu/libc.so.6
...

我如何解决这个问题？任何帮助都将不胜感激