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Tests fail on MinGW


Hi!

I experience failures in the testsuite when I run on MinGW.

I have:

$ gcc -v
Using built-in specs.
COLLECT_GCC=C:\MinGW\bin\gcc.exe
COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.6.2/lto-wrapper.exe
Target: mingw32
Configured with: ../gcc-4.6.2/configure --enable-languages=c,c++,ada,fortran,objc,obj-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared --enable-libgomp --disable-win32-registry --enable-libstdcxx-debug --enable-version-specific-runtime-libs --build=mingw32 --prefix=/mingw
Thread model: win32
gcc version 4.6.2 (GCC)

Which is a standard install from MinGW. I'm using libffi from
git-master.

Since I don't have dejagnu in my MSYS install, I tried to run some
of the tests in the testsuite manually and I'm seeing things that
don't look right.

E.g.

After:

mkdir mingw; cd mingw; ../configure; make # all looks good

I do this:

$ ./libtool --tag=CC --mode=link gcc -g -Iinclude -I../include -I. \
  ../testsuite/libffi.call/huge_struct.c libffi.la -o huge_struct
$ ./huge_struct
1 2 3 4 5 6 7 8 9 10 -0 0x4002 305419896 1 2 3 4 5 30064771078 34359738368 0 0 0 0xb0000000 16386 305419896 1 2 3 4 25769803781 7 0 9 10 0 2952790016 16386 22136 1 2 3 21474836484 30064771078 0 0 0 0x40240000 0 -1342177280: 16386 305419896 1 2 2 3 21474836484 30064771078 0 0 10 0 1076232192 0 0 16386 305419897 3 21474836484 30064771078 0 0 0 0x40260000 0 1076363264 0 0 2637826 305419898 21474836484 30064771078 0 0 0 0 1076363264 0 0 0 3758096384 16386 21780256379 30064771078 0 0 0 0 0 1076494336
res: 2 3 4 5 6 7 8 9 10 11 -2 0x4002 305419897 3 4 5 6 7 38654705672 42949672960 0 0 0 0xd0000000 2637826 305419898 4 5 6 7 38654705672 10 0 12 13 0 3758096384 2010923010 22139 5 6 7 38654705672 47244640266 0 0 0 0x402c0000 0 -268435456
1 2 3 4 5 6 7 8 9 10 -0 0xc0004002 305419896 1 2 3 4 5 30064771078 34359738368 0 0 0 0xb0000000 16386 305419896 1 2 3 4 25769803781 7 0 9 10 0 2952790016 1076510722 22136 1 2 3 21474836484 30064771078 0 0 0 0x40240000 0 -1342177280: 16386 305419896 1 2 2 3 21474836484 30064771078 0 0 10 0 1076232192 0 0 16386 305419897 3 21474836484 30064771078 0 0 0 0x40260000 0 1076363264 0 0 2637826 305419898 21474836484 30064771078 0 0 0 0 1076363264 0 0 0 3758096384 16386 21780256379 30064771078 0 0 0 0 0 1076494336
res: 2 3 4 5 6 7 8 9 10 11 -2 0x12344002 305419897 3 4 5 6 7 38654705672 42949672960 0 0 0 0xd0000000 16386 305419898 4 5 6 7 38654705672 10 0 12 13 0 3758096384 16386 22139 5 6 7 38654705672 47244640266 0 0 0 0x402c0000 0 -268435456

>From reading the comments in the huge_struct.c source, I gather that the
output should be:

1 2 3 4 5 6 7 8 9 10 11 0x12345678 1 2 3 4 5 6 7 8 9 10 11 0x12345678 1 2 3 4 5 6 7 8 9 10 11 0x12345678 1 2 3 4 5 6 7 8 9 10 11 0x12345678 1 2: 2 3 4 5 6 7 8 9 10 11 12 0x12345679 3 4 5 6 7 8 9 10 11 12 13 0x1234567a 4 5 6 7 8 9 10 11 12 13 14 0x1234567b 5 6 7 8 9 10 11 12 13 14 15 0x1234567c 6 7
res: 2 3 4 5 6 7 8 9 10 11 12 0x12345679 3 4 5 6 7 8 9 10 11 12 13 0x1234567a 4 5 6 7 8 9 10 11 12 13 14 0x1234567b 5 6 7 8 9 10 11 12 13 14 15 0x1234567c 6 7
1 2 3 4 5 6 7 8 9 10 11 0x12345678 1 2 3 4 5 6 7 8 9 10 11 0x12345678 1 2 3 4 5 6 7 8 9 10 11 0x12345678 1 2 3 4 5 6 7 8 9 10 11 0x12345678 1 2: 2 3 4 5 6 7 8 9 10 11 12 0x12345679 3 4 5 6 7 8 9 10 11 12 13 0x1234567a 4 5 6 7 8 9 10 11 12 13 14 0x1234567b 5 6 7 8 9 10 11 12 13 14 15 0x1234567c 6 7
res: 2 3 4 5 6 7 8 9 10 11 12 0x12345679 3 4 5 6 7 8 9 10 11 12 13 0x1234567a 4 5 6 7 8 9 10 11 12 13 14 0x1234567b 5 6 7 8 9 10 11 12 13 14 15 0x1234567c 6 7

Question is, am I doing something bad, or should the above work?

Cheers,
Peter


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