[Bug libitm/52787] New: Segmentation fault on MinGW

[i.nixman at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52787

             Bug #: 52787
           Summary: Segmentation fault on MinGW
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libitm
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: i.nixman@gmail.com


This code successfully compiled but on run crashes:

// { dg-do run }

extern "C" void abort ();

int dothrow;
int g;

static void f1()
{
  g++;
  if (dothrow)
    throw 1;
}

static void f2()
{
  __transaction_atomic {
    f1();
  }
}

int main()
{
  dothrow = 0;
  f2();

  dothrow = 1;
  try {
    f2();
  } catch (...) {
  }

  if (g != 2)
    abort ();
  return 0;
}

-------------------------------------------------------------------------

Coompiler:
$ g++ -v

Using built-in specs.
COLLECT_GCC=e:\mingw32\bin\g++.exe
COLLECT_LTO_WRAPPER=e:/mingw32/bin/../libexec/gcc/i686-w64-mingw32/4.7.0/lto-wrapper.exe
Target: i686-w64-mingw32
Configured with: ../../mingw-src/gcc-4.7.0/configure --host=i686-w64-mingw32
--build=i686-w64-mingw32 --target=i686-w64-mingw32 --enable-targets=all
--enable-multilib --prefix=/./mingw-x32 --with-sysroot=/./mingw-x32
--with-tune=generic --enable-languages=c,c++,lto,fortran
--enable-libstdcxx-time=yes --with-host-libstdcxx='-static -lstdc++'
--enable-shared --enable-static --enable-threads=posix --enable-libgomp
--enable-lto --enable-graphite --enable-cloog-backend=isl
--enable-checking=release --enable-fully-dynamic-string
--enable-version-specific-runtime-libs --enable-sjlj-exceptions
--disable-libstdcxx-pch --disable-libstdcxx-debug --disable-debug
--disable-bootstrap --disable-rpath --disable-win32-registry --disable-nls
--disable-werror --disable-symvers --with-libiconv --with-gmp=/./mingw-libs-x32
--with-mpfr=/./mingw-libs-x32 --with-mpc=/./mingw-libs-x32
--with-ppl=/./mingw-libs-x32 --with-cloog=/./mingw-libs-x32 CFLAGS='-O3 -pipe
-fomit-frame-pointer -momit-leaf-frame-pointer -I/./mingw-libs-x32/include'
CXXFLAGS='-O3 -pipe -fomit-frame-pointer -momit-leaf-frame-pointer' CPPFLAGS=
LDFLAGS='-pipe -s -L/./mingw-libs-x32/lib'
Thread model: posix
gcc version 4.7.0

-------------------------------------------------------------------------

Output log from gdb:

Program received signal SIGSEGV, Segmentation fault.
(anonymous namespace)::serialirr_dispatch::ITM_RU4 (this=0x81c0d8, ptr=0x1)
    at E:/msys/mingw-src/gcc-4.7.0/libitm/method-serial.cc:90
90      CREATE_DISPATCH_METHODS(virtual, )


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