summaryrefslogtreecommitdiffstats
path: root/bin/make_overflow
diff options
context:
space:
mode:
Diffstat (limited to 'bin/make_overflow')
-rwxr-xr-xbin/make_overflow219
1 files changed, 219 insertions, 0 deletions
diff --git a/bin/make_overflow b/bin/make_overflow
new file mode 100755
index 0000000..ced486a
--- /dev/null
+++ b/bin/make_overflow
@@ -0,0 +1,219 @@
+#!/usr/bin/perl -w
+require 5.003;
+use strict;
+
+# Global settings
+
+# List of supported C types to generate overflow assignment code for
+my @ctypes = ( () );
+
+#
+# Copyright by The HDF Group.
+# Copyright by the Board of Trustees of the University of Illinois.
+# All rights reserved.
+#
+# This file is part of HDF5. The full HDF5 copyright notice, including
+# terms governing use, modification, and redistribution, is contained in
+# the files COPYING and Copyright.html. COPYING can be found at the root
+# of the source code distribution tree; Copyright.html can be found at the
+# root level of an installed copy of the electronic HDF5 document set and
+# is linked from the top-level documents page. It can also be found at
+# http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have
+# access to either file, you may request a copy from help@hdfgroup.org.
+#
+
+# Create assignment overflow #ifdefs
+#
+# Programmer: Quincey Koziol
+# Creation Date: 2009/04/09
+
+##############################################################################
+# Parse a meaningful line (not a comment or blank line) into the appropriate
+# data structure
+#
+sub parse_line ($) {
+ my $line = shift; # Get the line to parse
+
+ # Parse get the type name and whether it's signed or unsigned
+#print "line=$line\n";
+ if($line =~ /.*SIGNED\s*;\s*$/ || $line =~ /.*UNSIGNED\s*;\s*$/) {
+ my $name; # The name of the type
+ my $signed; # Whether the type is signed or not
+
+ # Get the type's name & signed status
+ ($name, $signed) = ($line =~ /^\s*(\w*)\s*,\s*(\w*)\s*;\s*$/);
+#print "name = '$name', signed = '$signed'\n";
+
+ # Append the type to the list of C types already parsed
+ push @ctypes, [$name, $signed];
+
+ }
+ # Unknown keyword
+ else {
+ die "unknown keyword: $line";
+ }
+}
+
+##############################################################################
+# Print the copyright into an open file
+#
+sub print_copyright ($) {
+ my $fh = shift;
+
+ print $fh "/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n";
+ print $fh " * Copyright by The HDF Group. *\n";
+ print $fh " * Copyright by the Board of Trustees of the University of Illinois. *\n";
+ print $fh " * All rights reserved. *\n";
+ print $fh " * *\n";
+ print $fh " * This file is part of HDF5. The full HDF5 copyright notice, including *\n";
+ print $fh " * terms governing use, modification, and redistribution, is contained in *\n";
+ print $fh " * the files COPYING and Copyright.html. COPYING can be found at the root *\n";
+ print $fh " * of the source code distribution tree; Copyright.html can be found at the *\n";
+ print $fh " * root level of an installed copy of the electronic HDF5 document set and *\n";
+ print $fh " * is linked from the top-level documents page. It can also be found at *\n";
+ print $fh " * http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *\n";
+ print $fh " * access to either file, you may request a copy from help\@hdfgroup.org. *\n";
+ print $fh " * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */\n";
+}
+
+##############################################################################
+# Print the "do not change this file" warning
+#
+sub print_warning ($) {
+ my $fh = shift;
+
+ print $fh "\n/* Generated automatically by bin/make_overflow -- do not edit */\n";
+ print $fh "/* Add new types to H5overflow.txt file */\n\n";
+}
+
+##############################################################################
+# Print start of ifdef's to prevent a file from being re-included
+#
+sub print_startprotect ($$) {
+ my ($fh, $file) = @_;
+
+ # Clip off the ".h" part of the name
+ $file =~ s/(\w*)\.h/$1/;
+
+ # Print the ifdef info
+ print $fh "\n#ifndef _${file}_H\n";
+ print $fh "#define _${file}_H\n";
+}
+
+##############################################################################
+# Print assignment overflow macros for each type
+#
+sub print_typemacros ($) {
+ my $fh = shift; # File handle for output file
+ my ($src_aref, $dst_aref); # References for each type's information
+
+ # Print the descriptive comment
+ print $fh "\n\n/* Each type in this file is tested for assignment to the other types,\n";
+ print $fh " * and range checks are defined for bad assignments at run-time.\n";
+ print $fh " */\n";
+
+ for $src_aref (@ctypes) {
+ # Print a descriptive comment
+ print $fh "\n/* Assignment checks for @$src_aref[0] */\n\n";
+
+ for $dst_aref (@ctypes) {
+ if (@$src_aref[0] ne @$dst_aref[0]) {
+ # Print a descriptive comment
+ print $fh "/* src: @$src_aref[0], dst: @$dst_aref[0] */\n";
+
+ # Print actual type size checks & macro definitions
+ print $fh "#if H5_SIZEOF_", uc @$src_aref[0], " < H5_SIZEOF_", uc @$dst_aref[0], "\n";
+ print $fh " #define ASSIGN_", @$src_aref[0], "_TO_", @$dst_aref[0], "(dst, dsttype, src, srctype) \\\n";
+ if ( @$src_aref[1] eq @$dst_aref[1]) {
+ print $fh " ASSIGN_TO_LARGER_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)\n";
+ } elsif ( @$src_aref[1] eq "SIGNED") {
+ print $fh " ASSIGN_TO_LARGER_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)\n";
+ } else {
+ print $fh " ASSIGN_TO_LARGER_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)\n";
+ }
+ print $fh "#elif H5_SIZEOF_", uc @$src_aref[0], " > H5_SIZEOF_", uc @$dst_aref[0], "\n";
+ print $fh " #define ASSIGN_", @$src_aref[0], "_TO_", @$dst_aref[0], "(dst, dsttype, src, srctype) \\\n";
+ print $fh " ASSIGN_TO_SMALLER_SIZE(dst, dsttype, src, srctype)\n";
+ print $fh "#else /* H5_SIZEOF_", uc @$src_aref[0], " == H5_SIZEOF_", uc @$dst_aref[0], " */\n";
+ print $fh " #define ASSIGN_", @$src_aref[0], "_TO_", @$dst_aref[0], "(dst, dsttype, src, srctype) \\\n";
+ if ( @$src_aref[1] eq @$dst_aref[1]) {
+ print $fh " ASSIGN_TO_SAME_SIZE_SAME_SIGNED(dst, dsttype, src, srctype)\n";
+ } elsif ( @$src_aref[1] eq "SIGNED") {
+ print $fh " ASSIGN_TO_SAME_SIZE_SIGNED_TO_UNSIGNED(dst, dsttype, src, srctype)\n";
+ } else {
+ print $fh " ASSIGN_TO_SAME_SIZE_UNSIGNED_TO_SIGNED(dst, dsttype, src, srctype)\n";
+ }
+ print $fh "#endif /* src: @$src_aref[0] dst: @$dst_aref[0] */\n\n";
+ }
+ }
+ }
+
+}
+
+##############################################################################
+# Print end of ifdef's to prevent a file from being re-included
+#
+sub print_endprotect ($$) {
+ my ($fh, $file) = @_;
+
+ # Clip off the ".h" part of the name
+ $file =~ s/(\w*)\.h/$1/;
+
+ # Print the endif info
+ print $fh "#endif /* ${file}_H */\n\n";
+}
+
+##############################################################################
+# Create the generated portion of the public header file
+#
+sub create_public ($) {
+ my $prefix = shift; # Get the prefix for the generated file
+ my $file = "H5overflow.h"; # Name of file to generate
+ my $name; # Name of function
+
+ # Rename previous file
+# rename "${prefix}${file}", "${prefix}${file}~" or die "unable to make backup";
+
+ # Open new header file
+ open HEADER, ">${prefix}${file}" or die "unable to modify source";
+
+ # Create file contents
+ print_copyright(*HEADER);
+ print_warning(*HEADER);
+ print_startprotect(*HEADER, $file);
+ print_typemacros(*HEADER);
+ print_endprotect(*HEADER, $file);
+
+ # Close header file
+ close HEADER;
+}
+
+##############################################################################
+# Read symbol version file (given as command-line argument) in and process it
+# into internal data structures, then create header files.
+#
+my $file; # Filename of input file
+
+for $file (@ARGV) {
+ my $prefix; # Local prefix for generated files
+ my $line; # Line from input file
+
+#print "file = '$file'\n";
+ ($prefix) = ($file =~ /(^.*\/)/);
+#print "prefix = '$prefix'\n";
+ # Read in the entire file
+ open SOURCE, $file or die "$file: $!\n";
+ while ( defined ($line=<SOURCE>) ) {
+ # Skip blank lines and those lines whose first character is a '#'
+ if(!($line =~ /(^\s*#.*$)|(^\s*$)/)) {
+ # Construct data structures for later printing
+ parse_line($line);
+ }
+ }
+ close SOURCE;
+
+ # Create header files
+ print "Generating 'H5overflow.h'\n";
+ create_public($prefix);
+}
+
generated by cgit v0.12 at 2024-11-09 09:19:21 (GMT)