问题
I made a new OpenGL ES application, and without modifying anything, I ran the program. It runs, but I see these error messages:
Detected an attempt to call a symbol in system libraries that is not present on the iPhone:
open$UNIX2003 called from function _ZN4llvm12MemoryBuffer7getFileEPKcPSsx in image libLLVMContainer.dylib.
Detected an attempt to call a symbol in system libraries that is not present on the iPhone:
fstat$INODE64 called from function _ZN4llvm12MemoryBuffer7getFileEPKcPSsx in image libLLVMContainer.dylib.
Detected an attempt to call a symbol in system libraries that is not present on the iPhone:
mmap$UNIX2003 called from function _ZN4llvm3sys4Path14MapInFilePagesEiy in image libLLVMContainer.dylib.
Detected an attempt to call a symbol in system libraries that is not present on the iPhone:
close$UNIX2003 called from function _ZN4llvm12MemoryBuffer7getFileEPKcPSsx in image libLLVMContainer.dylib.
Detected an attempt to call a symbol in system libraries that is not present on the iPhone:
pthread_mutexattr_destroy$UNIX2003 called from function _ZN4llvm3sys5MutexC2Eb in image libLLVMContainer.dylib.
The program displays a colored box that moves up and down. Is this what it's supposed to do? What do these error messages mean?
回答1:
I've been noticing the same. I'm running iOS sdk 4.1. But it only happens on the simulator.
From what I found at the apple forums, it seems to be a simulator bug. An Apple representative claimed that it was a bug on "their" end.
Here's the quote "This is a bug on our end, but as long as things are otherwise working for you, the logging can safely be ignored."
来源：https://stackoverflow.com/questions/3891504/error-messages-when-using-opengl-es-template