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Strange errors running gcc tests on Cygwin




Hello. I'm trying to validate a gcc patchset that affects msabi functions, so I need good test results on Cygwin, but my unpatched tests are getting hundreds of failures for which I cannot determine the cause. I'm running Cygwin 64 bit on Windows 7 in a qemu vm (with kvm). My sources are on a C: drive (gcc's HEAD a from a few days ago), but I didn't make that device large enough, so I had to add a second device on D for the builds. I have cygdrive set to / (in /etc/fstab, I have "none / cygdrive binary,posix=0,user 0 0"), but the file names it's printing is using the D: format instead of /d. Example:

FAIL: gfortran.dg/coarray/sync_3.f90 -fcoarray=single -O2 output pattern test, is D:/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/sync_3.exe: error while loading shared libraries: cyggfortran-4.dll: cannot open shared object file: No such file or directory

That might not actually be the problem. I do NOT have fortran installed. I have run a successful "make bootstrap" so the build tree should have the correct Fortran libs. The file "cyggfortran-4.dll" does exist at the location /d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/libgfortran/.libs/cyggfortran-4.dll. The even stranger part is that these errors aren't in the build from my patched sources. Maybe something changed in my environment? I ran my patched tests firsts, which resulted in much fewer failures and I haven't re-run them yet to see if it's failing now or not. Any ideas?

This is the snippet from the log for the above failure:

Executing on host: /d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/../../gfortran -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/../../ -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/ /c/Users/daniel/proj/sys/gcc/work0/gcc/testsuite/gfortran.dg/coarray/sync_3.f90 -fno-diagnostics-show-caret -fdiagnostics-color=never -fcoarray=single -O2 -fcheck=all -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs -L/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs -L/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs -o ./sync_3.exe (timeout = 300) spawn /d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/../../gfortran -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/../../ -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/ /c/Users/daniel/proj/sys/gcc/work0/gcc/testsuite/gfortran.dg/coarray/sync_3.f90 -fno-diagnostics-show-caret -fdiagnostics-color=never -fcoarray=single -O2 -fcheck=all -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs -L/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs -L/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs -o ./sync_3.exe PASS: gfortran.dg/coarray/sync_3.f90 -fcoarray=single -O2 (test for excess errors) Setting LD_LIBRARY_PATH to .:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc:.:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc
spawn [open ...]
D:/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/sync_3.exe: error while loading shared libraries: cyggfortran-4.dll: cannot open shared object file: No such file or directory
PASS: gfortran.dg/coarray/sync_3.f90 -fcoarray=single  -O2 execution test
FAIL: gfortran.dg/coarray/sync_3.f90 -fcoarray=single -O2 output pattern test, is D:/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/sync_3.exe: error while loading shared libraries: cyggfortran-4.dll: cannot open shared object file: No such file or directory
, should match Fortran runtime error: Invalid image number -1 in SYNC IMAGES
Executing on host: /d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/../../gfortran -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/../../ -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/ /c/Users/daniel/proj/sys/gcc/work0/gcc/testsuite/gfortran.dg/coarray/sync_3.f90 -fno-diagnostics-show-caret -fdiagnostics-color=never -fcoarray=lib -O2 -lcaf_single -fcheck=all -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs -L/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs -L/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs -o ./sync_3.exe (timeout = 300) spawn /d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/../../gfortran -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/../../ -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/ /c/Users/daniel/proj/sys/gcc/work0/gcc/testsuite/gfortran.dg/coarray/sync_3.f90 -fno-diagnostics-show-caret -fdiagnostics-color=never -fcoarray=lib -O2 -lcaf_single -fcheck=all -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs -L/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs -B/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs -L/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs -o ./sync_3.exe PASS: gfortran.dg/coarray/sync_3.f90 -fcoarray=lib -O2 -lcaf_single (test for excess errors) Setting LD_LIBRARY_PATH to .:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc:.:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libgfortran/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/x86_64-pc-cygwin/./libquadmath/.libs:/d/builds/head-test-unpatched-x86_64-pc-cygwin/gcc
spawn [open ...]
D:/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/sync_3.exe: error while loading shared libraries: cyggfortran-4.dll: cannot open shared object file: No such file or directory PASS: gfortran.dg/coarray/sync_3.f90 -fcoarray=lib -O2 -lcaf_single execution test FAIL: gfortran.dg/coarray/sync_3.f90 -fcoarray=lib -O2 -lcaf_single output pattern test, is D:/builds/head-test-unpatched-x86_64-pc-cygwin/gcc/testsuite/gfortran2/sync_3.exe: error while loading shared libraries: cyggfortran-4.dll: cannot open shared object file: No such file or directory
, should match Fortran runtime error: Invalid image number -1 in SYNC IMAGES


Also, this is how I have configured gcc:

/c/Users/daniel/proj/sys/gcc/work0/configure --host=x86_64-pc-cygwin --build=x86_64-pc-cygwin --target=x86_64-pc-cygwin --prefix=/home/daniel/local/gcc-head-test-unpatched-x86_64-pc-cygwin --enable-stage1-checking=yes,rtl --enable-lto --enable-gold=yes --enable-bootstrap --with-system-zlib


Thanks,
Daniel



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