[cfe-dev] clang driver crashes on windows/mingw

[Daniel Dunbar]

We tracked this down to a gcc miscompile. Worked around in r75518.

 - Daniel

On Sun, Jul 12, 2009 at 10:20 PM, Ronald Pijnacker<pijnacker at dse.nl> wrote:
>>> Hi all,
>>> When I try to run clang on windows/mingw it crashes:
>>
>> Hi Ronald,
>> Can you get a backtrace ("bt") from gdb at the failure point?
>> -Chris
>
> Hi Chris,
>
> Sure:
>
> $ gdb /d/Programs/llvm-d/bin/clang
> This GDB was configured as "i686-pc-mingw32"...
> (gdb) run -I. -c Test.m -o Test.o
> Starting program: d:/Programs/llvm-d/bin/clang -I. -c Test.m -o Test.o
> [New thread 1404.0x8bc]
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x0040ef2c in clang::driver::OptTable::ParseOneArg (this=0x3d4fe0, Args=@0x3d2e20, Index=@0x22f7e8)
>    at d:/data/llvm/llvm-svn/tools/clang/lib/Driver/OptTable.cpp:255
> 255         if (Arg *A = getOption(id)->accept(Args, Index))
> (gdb) bt
> #0  0x0040ef2c in clang::driver::OptTable::ParseOneArg (this=0x3d4fe0, Args=@0x3d2e20, Index=@0x22f7e8)
>    at d:/data/llvm/llvm-svn/tools/clang/lib/Driver/OptTable.cpp:255
> #1  0x004036da in clang::driver::Driver::ParseArgStrings (this=0x22f950, ArgBegin=0x3d4ee4, ArgEnd=0x3d4ef8)
>    at d:/data/llvm/llvm-svn/tools/clang/lib/Driver/Driver.cpp:83
> #2  0x00403c7d in clang::driver::Driver::BuildCompilation (this=0x22f950, argc=6, argv=0x3d4ee0)
>    at d:/data/llvm/llvm-svn/tools/clang/lib/Driver/Driver.cpp:185
> #3  0x00402136 in main (argc=6, argv=0x3d4ee0) at d:/data/llvm/llvm-svn/tools/clang/tools/driver/driver.cpp:218
> (gdb) list
> 250         if (Start == End)
> 251           break;
> 252
> 253         // See if this option matches.
> 254         options::ID id = (options::ID) (Start - OptionInfos + 1);
> 255         if (Arg *A = getOption(id)->accept(Args, Index))
> 256           return A;
> 257
> 258         // Otherwise, see if this argument was missing values.
> 259         if (Prev != Index)
>
> Thanks,
>
> Ronald
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