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https://github.com/Unidata/netcdf-c.git
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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.
132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/* A Bison parser, made by GNU Bison 3.0.4. */
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/* Bison interface for Yacc-like parsers in C
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Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* As a special exception, you may create a larger work that contains
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part or all of the Bison parser skeleton and distribute that work
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under terms of your choice, so long as that work isn't itself a
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parser generator using the skeleton or a modified version thereof
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as a parser skeleton. Alternatively, if you modify or redistribute
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the parser skeleton itself, you may (at your option) remove this
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special exception, which will cause the skeleton and the resulting
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Bison output files to be licensed under the GNU General Public
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License without this special exception.
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This special exception was added by the Free Software Foundation in
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version 2.2 of Bison. */
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#ifndef YY_NCG_NCGEN_TAB_H_INCLUDED
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# define YY_NCG_NCGEN_TAB_H_INCLUDED
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/* Debug traces. */
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#ifndef YYDEBUG
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# define YYDEBUG 1
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#endif
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#if YYDEBUG
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extern int ncgdebug;
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#endif
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/* Token type. */
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#ifndef YYTOKENTYPE
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# define YYTOKENTYPE
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enum yytokentype
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{
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NC_UNLIMITED_K = 258,
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CHAR_K = 259,
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BYTE_K = 260,
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SHORT_K = 261,
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INT_K = 262,
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FLOAT_K = 263,
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DOUBLE_K = 264,
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UBYTE_K = 265,
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USHORT_K = 266,
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UINT_K = 267,
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INT64_K = 268,
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UINT64_K = 269,
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STRING_K = 270,
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IDENT = 271,
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TERMSTRING = 272,
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CHAR_CONST = 273,
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BYTE_CONST = 274,
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SHORT_CONST = 275,
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INT_CONST = 276,
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INT64_CONST = 277,
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UBYTE_CONST = 278,
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USHORT_CONST = 279,
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UINT_CONST = 280,
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UINT64_CONST = 281,
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FLOAT_CONST = 282,
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DOUBLE_CONST = 283,
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DIMENSIONS = 284,
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VARIABLES = 285,
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NETCDF = 286,
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DATA = 287,
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TYPES = 288,
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COMPOUND = 289,
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ENUM = 290,
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OPAQUE_ = 291,
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OPAQUESTRING = 292,
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GROUP = 293,
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PATH = 294,
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FILLMARKER = 295,
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NIL = 296,
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_FILLVALUE = 297,
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_FORMAT = 298,
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_STORAGE = 299,
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_CHUNKSIZES = 300,
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_DEFLATELEVEL = 301,
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_SHUFFLE = 302,
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_ENDIANNESS = 303,
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_NOFILL = 304,
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_FLETCHER32 = 305,
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_NCPROPS = 306,
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_ISNETCDF4 = 307,
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_SUPERBLOCK = 308,
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_FILTER = 309,
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DATASETID = 310
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};
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#endif
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/* Value type. */
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#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
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union YYSTYPE
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{
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#line 149 "ncgen.y" /* yacc.c:1909 */
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Symbol* sym;
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unsigned long size; /* allow for zero size to indicate e.g. UNLIMITED*/
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long mark; /* track indices into the sequence*/
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int nctype; /* for tracking attribute list type*/
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Datalist* datalist;
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NCConstant* constant;
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#line 119 "ncgeny.h" /* yacc.c:1909 */
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};
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typedef union YYSTYPE YYSTYPE;
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# define YYSTYPE_IS_TRIVIAL 1
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# define YYSTYPE_IS_DECLARED 1
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#endif
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extern YYSTYPE ncglval;
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int ncgparse (void);
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#endif /* !YY_NCG_NCGEN_TAB_H_INCLUDED */
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