[LLVMdev] probleam about ThreadLocalImpl of llvm

[Duncan Sands]

Hi,

> I am very sorry to trouble you, but I need your help about my problem about
> ThreadLocalImpl in llvm of 2.8 version.

this is a very old version of LLVM, I suggest you try something newer, eg the
recently released version 3.1.

Best wishes, Duncan.

  I have compiled it in Windows xp with
> mingw, and have compiled skyeye(an open source project about simulator) as it
> uses llvm. But when I run a testcase ---- arm_hello, it came out segment fault.
> I used gdb.exe to trace it, it gave the following infomation:
>
> $ gdb.exe /opt/skyeye/bin/skyeye
> GNU gdb 6.8
> Copyright (C) 2008 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law. Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "i686-pc-mingw32"...
> (gdb) set args -n -e arm_hello
> (gdb) run
> Starting program: C:/msys/1.0/opt/skyeye/bin/skyeye.exe -n -e arm_hello
> [New thread 1696.0xec]
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x7c809f42 in KERNEL32!IsBadWritePtr () from C:\WINDOWS\system32\kernel32.dll
> (gdb) bt
> #0 0x7c809f42 in KERNEL32!IsBadWritePtr ()
> from C:\WINDOWS\system32\kernel32.dll
> #1 0x00000001 in ?? ()
> #2 0xbaadf00d in ?? ()
> #3 0x0002020b in ?? ()
> #4 0x0022f904 in ?? ()
> #5 0x0022f8b4 in ?? ()
> #6 0x7c9301c0 in ntdll!RtlAppendStringToString ()
> from C:\WINDOWS\system32\ntdll.dll
> #7 0x0022fb08 in ?? ()
> #8 0x7c839ac0 in ValidateLocale () from C:\WINDOWS\system32\kernel32.dll
> #9 0x71065fd0 in msys-1!cfsetispeed () from C:\msys\1.0\bin\msys-1.0.dll
> #10 0x71066000 in msys-1!cfsetispeed () from C:\msys\1.0\bin\msys-1.0.dll
> #11 0x71066c5a in msys-1!cfsetispeed () from C:\msys\1.0\bin\msys-1.0.dll
> #12 0x7104129a in pthread_key_create () from C:\msys\1.0\bin\msys-1.0.dll
> #13 0x66594055 in llvm::sys::ThreadLocalImpl::ThreadLocalImpl ()
> from C:\msys\1.0\opt\skyeye\bin\libcommon-0.dll
> #14 0x77c04ee5 in msvcrt!__doserrno () from C:\WINDOWS\system32\msvcrt.dll
> #15 0x66081133 in atexit () from C:\msys\1.0\opt\skyeye\bin\libcommon-0.dll
> #16 0x660810e1 in DllMainCRTStartup at 12 ()
> from C:\msys\1.0\opt\skyeye\bin\libcommon-0.dll
> #17 0x7c92118a in ntdll!LdrSetAppCompatDllRedirectionCallback ()
> from C:\WINDOWS\system32\ntdll.dll
> #18 0x66080000 in ?? ()
> #19 0x00000001 in ?? ()
> #20 0x66081060 in __dll_exit ()
> from C:\msys\1.0\opt\skyeye\bin\libcommon-0.dll
> #21 0x7c93c4da in ntdll!LdrHotPatchRoutine ()
> from C:\WINDOWS\system32\ntdll.dll
> #22 0x7c941194 in ntdll!RtlMapGenericMask ()
> from C:\WINDOWS\system32\ntdll.dll
> #23 0x7c94108f in ntdll!RtlMapGenericMask ()
> from C:\WINDOWS\system32\ntdll.dll
> #24 0x7c92e437 in ntdll!LdrCreateOutOfProcessImage ()
> from C:\WINDOWS\system32\ntdll.dll
> (gdb)
>
> At last, I print some information in ThreadLocalImpl function:
> 44 ThreadLocalImpl::ThreadLocalImpl() : data(0) {
> 45 pthread_key_t* key = new pthread_key_t;
> 46 printf("IN %s, line = %d key: 0x%x\n", __FUNCTION__, __LINE__, key);
> 47 int errorcode = pthread_key_create(key, NULL);
> 48 printf("In %s, line = %d\n", __FUNCTION__, __LINE__);
> 49 assert(errorcode == 0);
> 50 (void) errorcode;
> 51 data = (void*)key;
> 52 }
>
>
> It print the following information:
>
> $ /opt/skyeye/bin/skyeye.exe -n -e arm_hello
> IN ThreadLocalImpl, line = 46 key: 0x3e2c68
> --
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>
>
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