[LLVMdev] dyld: lazy symbol binding failed: fast lazy bind offset out of range

[Jack Howarth]

On Mon, Oct 22, 2012 at 11:40:32AM -0700, Nick Kledzik wrote:
> 
> On Oct 22, 2012, at 11:34 AM, Jack Howarth wrote:
> 
> > Nick,
> >   I have uploaded the full walk with 'set env DYLD_PRINT_INITIALIZERS'. It didn't seem very informative
> > as the dyld error occurs right after...
> > 
> > (gdb)
> > llvm::sys::DynamicLibrary::getPermanentLibrary (filename=0x142903da8 "/sw/opt/llvm-3.2/lib/LLVMPolly.so", errMsg=0x7fff5fbfe6e0) at /sw/src/fink.build/llvm32-3.2-0/llvm-3.2/lib/Support/DynamicLibrary.cpp:77
> > 77        void *handle = dlopen(filename, RTLD_LAZY|RTLD_GLOBAL);
> > (gdb)
> > Reading symbols for shared libraries ... done
> > dyld: calling initializer function 0x100eea5b0 in /sw/opt/llvm-3.2/lib/LLVMPolly.so
> 
> You need to set a break point at 0x100eea5b0 and run again until that break is hit, then start stepping.
> 
> > Are there any tricks for identifying the order that the symbols are being resolved?
> (gdb) set env DYLD_PRINT_BINDINGS 1
> will show each use of a symbol as it is bound.  This can be *a lot* of information.  
> 
> -Nick

Nick,
   Can you clarify what I should be looking for here? I assumed you expected that I should see some symbol
bindings occur immediately after the initializer function in LLVMPolly.so is called but before dyld throws
the "fast lazy bind offset out of range" error message. In the http://llvm.org/bugs/attachment.cgi?id=9397,
the log file for a walk with DYLD_PRINT_INITIALIZERS and DYLD_PRINT_BINDINGS set on darwin12, I only see...

(gdb) 
llvm::sys::DynamicLibrary::getPermanentLibrary (filename=0x141328518 "/sw/opt/llvm-3.2/lib/LLVMPolly.so", errMsg=0x7fff5fbfe6d0) at /sw/src/fink.build/llvm32-3.2-0/llvm-3.2/lib/Support/DynamicLibrary.cpp:77
77        void *handle = dlopen(filename, RTLD_LAZY|RTLD_GLOBAL);
(gdb) 
Reading symbols for shared libraries ... done
dyld: bind: libisl.10.dylib:0x101292010 = libsystem_c.dylib:__DefaultRuneLocale, *0x101292010 = 0x7FFF7A145890
dyld: bind: libisl.10.dylib:0x101292018 = libsystem_c.dylib:___stack_chk_guard, *0x101292018 = 0x7FFF7A1474B0
....
dyld: weak bind: LLVMPolly.so:0x100FB3128 = libc++.1.dylib:__ZdaPv, *0x100FB3128 = 0x7FFF898BD1C6
dyld: weak bind: LLVMPolly.so:0x100FB3130 = libc++.1.dylib:__ZdlPv, *0x100FB3130 = 0x7FFF898BD1AB
dyld: weak bind: LLVMPolly.so:0x100FB3138 = libc++.1.dylib:__Znam, *0x100FB3138 = 0x7FFF898BD173
dyld: weak bind: LLVMPolly.so:0x100FB3140 = libc++.1.dylib:__Znwm, *0x100FB3140 = 0x7FFF898BD0DF
dyld: calling initializer function 0x100ebb5b0 in /sw/opt/llvm-3.2/lib/LLVMPolly.so
dyld: lazy symbol binding failed: fast lazy bind offset out of range (53437, max=2928) in image /sw/lib/gcc4.7/libexec/gcc/x86_64-apple-darwin12.2.0/4.7.2/cc1
dyld: fast lazy bind offset out of range (53437, max=2928) in image /sw/lib/gcc4.7/libexec/gcc/x86_64-apple-darwin12.2.0/4.7.2/cc1

Program received signal SIGTRAP, Trace/breakpoint trap.
0x00007fff5fc0109d in __dyld_dyld_fatal_error ()

where all of the bindings from LLVMPolly.so occur before the initializer function is called. Was this behavior
expected?
   Also, as I noted on http://llvm.org/bugs/show_bug.cgi?id=14140#c13, a static build of LLVMPolly.so on 10.6 exhibits the
same dyld error. Am I correct to assume that test proves that the offending symbol can't be from libcloog-isl, libisl,
libgmp or libstdc++ because, when statically linked, those symbols can't be obtained from cc1? Is it vaild to assume that the
offending symbol has to be both in the binding list seen when LLVMPolly.so loads and the symbols (defined or undefined)
in cc1? Any suggestions on how to proceed in debugging this would be appreciated.
         Jack