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https://github.com/HDFGroup/hdf5.git
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2359a9b020
Although clang defines __GNUC__ and supports most gcc warnings, it doesn't support all, and will in fact even warn about an unknown pragma. Guard appropriately.
265 lines
10 KiB
Bash
Executable File
265 lines
10 KiB
Bash
Executable File
#! /bin/bash
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#
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# Copyright by The HDF Group.
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# All rights reserved.
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#
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# This file is part of HDF5. The full HDF5 copyright notice, including
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# terms governing use, modification, and redistribution, is contained in
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# the COPYING file, which can be found at the root of the source code
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# distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.
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# If you do not have access to either file, you may request a copy from
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# help@hdfgroup.org.
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#
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# This script runs flex/lex and bison/yacc to generate parser code for
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# the high-level library. It used to be a part of autogen.sh, but many
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# people encountered problems with installing flex and bison on their
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# system and the parser code rarely changes, so those parts of the
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# script were moved to their own file.
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#
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# NOTE CAREFULLY!
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#
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# There is NO dependency in either the autotools or CMake to regenerate
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# the parser code. If you modify H5LT analyze.l or H5LTparse.y, you
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# will need to run this scrpit manually on a system with a suitable
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# lexer and parser generator.
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#
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# IMPORTANT OS X NOTE
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#
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# If you are using OS X, you will probably not have flex or bison
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# installed. In addtion, even if you do have bison installed, the bison
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# version you have installed may also have a bug that makes it unable to
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# process our input files.
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#
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# The easiest way to fix this is to install everything via Homebrew:
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#
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# http://brew.sh/
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#
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# After you install the base packages, install flex/bison.
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#
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# brew install flex
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# brew install bison
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#
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# END IMPORTANT OS X NOTE
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#
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# If you want to use a particular version of flex or bison, the paths
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# to each tool can be overridden using the following environment
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# variables:
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#
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# HDF5_FLEX
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# HDF5_BISON
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#
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# This script takes two potential options:
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#
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# -p
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#
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# When this is selected, the flex/bison versions are set to the paths
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# and versions used by The HDF Group to produce the released versions
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# of the library.
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#
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# NOTE: This is probably temporary. Once we update our dev machines
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# to have recent versions of the autotools this option will probably
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# be removed.
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#
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# -v
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#
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# This emits some extra information, mainly tool versions.
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echo
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echo "*******************************************"
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echo "* HDF5 high-level parser generator script *"
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echo "*******************************************"
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echo
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# Default is not verbose output
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verbose=false
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optspec=":hpv-"
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while getopts "$optspec" optchar; do
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case "${optchar}" in
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h)
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echo "usage: $0 [OPTIONS] /path/to/hl/src/directory"
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echo
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echo " -h Print this help message."
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echo
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echo " -p Used by THG to use hard-codes flex/bison"
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echo " paths on THG machines. Not for non-HDF-Group"
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echo " users!"
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echo
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echo " -v Show more verbose output."
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echo
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echo " NOTE: Each tool can be set via an environment variable."
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echo " These are documented inside this script."
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echo
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exit 0
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;;
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p)
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echo "Setting THG production mode..."
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echo
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production=true
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;;
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v)
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echo "Setting verbosity: high"
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echo
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verbose=true
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;;
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*)
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if [ "$OPTERR" != 1 ] || [ "${optspec:0:1}" = ":" ]; then
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echo "Non-option argument: '-${OPTARG}'" >&2
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fi
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;;
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esac
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done
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# Get the path to the hl src directory
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shift $(($OPTIND - 1))
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path_to_hl_src=$1
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if test -z ${path_to_hl_src}; then
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echo "*** ERROR *** - Path to hl/src not set"
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echo "Please add the path to the hl/src directory as a parameter"
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echo "See $0 -h for more help."
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echo
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exit -1
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fi
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if [ "$production" = true ] ; then
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# Production mode
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#
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# Hard-code canonical HDF Group tool locations.
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# If paths to tools are not specified, assume they are
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# located in /usr/hdf/bin/AUTOTOOLS and set paths accordingly.
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if test -z ${HDF5_BISON}; then
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HDF5_BISON=/usr/hdf/bin/AUTOTOOLS/bison
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fi
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if test -z ${HDF5_FLEX}; then
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HDF5_FLEX=/usr/hdf/bin/AUTOTOOLS/flex
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fi
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else
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# Not in production mode
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#
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# If paths to autotools are not specified, use whatever the system
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# has installed as the default. We use 'which <tool>' to
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# show exactly what's being used.
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if test -z ${HDF5_BISON}; then
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HDF5_BISON=$(which bison)
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fi
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if test -z ${HDF5_FLEX}; then
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HDF5_FLEX=$(which flex)
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fi
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fi # production
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# Make sure that these versions of the tools are in the path
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BISON_DIR=`dirname ${HDF5_BISON}`
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FLEX_DIR=`dirname ${HDF5_FLEX}`
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PATH=${FLEX_DIR}:${BISON_DIR}:$PATH
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# Run flex and bison
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# automatically generates hl/src/H5LTanalyze.c and hl/src/H5LTparse.c
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# Note that, as of Xcode 6.1 (2015), the default bison version on OS X
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# is old enough to have the circular dependency bug. You'll have
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# to install a later version of bison. See the OS X note at the top
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# of this script.
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echo
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echo "Generating H5LT parser code (requires yacc/bison):"
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echo "Generate hl/src/H5LTparse.c from hl/src/H5LTparse.y"
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# HDF5_BISON is set via the environment or 'which bison', above
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if test -z ${HDF5_BISON}; then
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echo
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echo "*************************"
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echo " ERROR - bison not found"
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echo "*************************"
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echo "bison is required to generate parser code in H5LT"
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echo
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exit 127
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fi
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if [ "$verbose" = true ] ; then
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${HDF5_BISON} --version
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fi
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${HDF5_BISON} -pH5LTyy -o ${path_to_hl_src}/H5LTparse.c -d ${path_to_hl_src}/H5LTparse.y
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echo
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echo "Generating H5LT lexer code (requires lex/flex):"
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echo "Generate hl/src/H5LTanalyze.c from hl/src/H5LTanalyze.l"
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# HDF5_FLEX is set via the environment or 'which flex', above
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if test -z ${HDF5_FLEX}; then
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echo
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echo "************************"
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echo " ERROR - flex not found"
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echo "************************"
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echo "flex is required to generate lexer code in H5LT"
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echo
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exit 127
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fi
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if [ "$verbose" = true ] ; then
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${HDF5_FLEX} --version
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fi
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${HDF5_FLEX} --nounistd -PH5LTyy -o ${path_to_hl_src}/H5LTanalyze.c ${path_to_hl_src}/H5LTanalyze.l
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# fix H5LTparse.c and H5LTlparse.h to declare H5LTyyparse return type as an
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# hid_t instead of int. Currently the generated function H5LTyyparse is
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# generated with a return value of type int, which is a mapping to the
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# flex yyparse function. The return value in the HL library should be
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# an hid_t.
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# I propose to not use flex to generate this function, but for now I am
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# adding a perl command to find and replace this function declaration in
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# H5LTparse.c.
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perl -0777 -pi -e 's/int yyparse/hid_t yyparse/igs' ${path_to_hl_src}/H5LTparse.c
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perl -0777 -pi -e 's/int\nyyparse/hid_t\nyyparse/igs' ${path_to_hl_src}/H5LTparse.c
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perl -0777 -pi -e 's/int H5LTyyparse/hid_t H5LTyyparse/igs' ${path_to_hl_src}/H5LTparse.c
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perl -0777 -pi -e 's/int yyparse/hid_t yyparse/igs' ${path_to_hl_src}/H5LTparse.h
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perl -0777 -pi -e 's/int\nyyparse/hid_t\nyyparse/igs' ${path_to_hl_src}/H5LTparse.h
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perl -0777 -pi -e 's/int H5LTyyparse/hid_t H5LTyyparse/igs' ${path_to_hl_src}/H5LTparse.h
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# Add code that disables warnings in the flex/bison-generated code.
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#
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# Note that the GCC pragmas did not exist until gcc 4.2. Earlier versions
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# will simply ignore them, but we want to avoid those warnings.
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#
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# Note also that although clang defines __GNUC__, it doesn't support every
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# warning that GCC does.
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for f in ${path_to_hl_src}/H5LTparse.c ${path_to_hl_src}/H5LTanalyze.c
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do
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echo '#if defined (__GNUC__) ' >> tmp.out
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echo '#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 402 ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wconversion" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wimplicit-function-declaration" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wmissing-prototypes" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wnested-externs" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wold-style-definition" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wredundant-decls" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wsign-compare" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wsign-conversion" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wstrict-overflow" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wstrict-prototypes" ' >> tmp.out
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echo '#if !defined (__clang__) ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wlarger-than=" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wsuggest-attribute=const" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wsuggest-attribute=pure" ' >> tmp.out
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echo '#endif ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wswitch-default" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wunused-function" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wunused-macros" ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wunused-parameter" ' >> tmp.out
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echo '#endif ' >> tmp.out
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echo '#if ((__GNUC__ * 100) + __GNUC_MINOR__) >= 600 ' >> tmp.out
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echo '#pragma GCC diagnostic ignored "-Wnull-dereference" ' >> tmp.out
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echo '#endif ' >> tmp.out
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echo '#elif defined __SUNPRO_CC ' >> tmp.out
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echo '#pragma disable_warn ' >> tmp.out
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echo '#elif defined _MSC_VER ' >> tmp.out
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echo '#pragma warning(push, 1) ' >> tmp.out
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echo '#endif ' >> tmp.out
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cat $f >> tmp.out
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mv tmp.out $f
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done
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echo
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exit 0
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