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751300ec59
This is a follow up to PR https://github.com/Unidata/netcdf-c/pull/1173 Sorry that it is so big, but leak suppression can be complex. This PR fixes all remaining memory leaks -- as determined by -fsanitize=address, and with the exceptions noted below. Unfortunately. there remains a significant leak that I cannot solve. It involves vlens, and it is unclear if the leak is occurring in the netcdf-c library or the HDF5 library. I have added a check_PROGRAM to the ncdump directory to show the problem. The program is called tst_vlen_demo.c To exercise it, build the netcdf library with -fsanitize=address enabled. Then go into ncdump and do a "make clean check". This should build tst_vlen_demo without actually executing it. Then do the command "./tst_vlen_demo" to see the output of the memory checker. Note the the lost malloc is deep in the HDF5 library (in H5Tvlen.c). I am temporarily working around this error in the following way. 1. I modified several test scripts to not execute known vlen tests that fail as described above. 2. Added an environment variable called NC_VLEN_NOTEST. If set, then those specific tests are suppressed. This should mean that the --disable-utilities option to ./configure should not need to be set to get a memory leak clean build. This should allow for detection of any new leaks. Note: I used an environment variable rather than a ./configure option to control the vlen tests. This is because it is temporary (I hope) and because it is a bit tricky for shell scripts to access ./configure options. Finally, as before, this only been tested with netcdf-4 and hdf5 support. |
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| .. | ||
| u | ||
| CMakeLists.txt | ||
| crc32.c | ||
| crc32.h | ||
| datt.c | ||
| dattget.c | ||
| dattinq.c | ||
| dattput.c | ||
| dauth.c | ||
| daux.c | ||
| dcompound.c | ||
| dcopy.c | ||
| ddim.c | ||
| ddispatch.c | ||
| defcheck.c | ||
| denum.c | ||
| derror.c | ||
| dfile.c | ||
| dfilter.c | ||
| dgroup.c | ||
| dinternal.c | ||
| dnotnc3.c | ||
| dnotnc4.c | ||
| doffsets.c | ||
| dopaque.c | ||
| dparallel.c | ||
| drc.c | ||
| dreadonly.c | ||
| dstring.c | ||
| dtype.c | ||
| dutf8.c | ||
| dutil.c | ||
| dv2i.c | ||
| dvar.c | ||
| dvarget.c | ||
| dvarinq.c | ||
| dvarput.c | ||
| dvlen.c | ||
| dwinpath.c | ||
| heap | ||
| json.c | ||
| Makefile.am | ||
| nc.c | ||
| ncbytes.c | ||
| nchashmap.c | ||
| nclist.c | ||
| nclistmgr.c | ||
| nclog.c | ||
| ncsettings.hdr | ||
| nctime.c | ||
| ncuri.c | ||
| netcdf.m4 | ||
| stubdef.c | ||
| test_ncuri.c | ||
| test_pathcvt.c | ||
| u8.c | ||
| u8.h | ||
| utf8proc_data.c | ||
| utf8proc.c | ||
| utf8proc.h | ||