added gen-cxx utility

git-svn-id: https://svn.mcs.anl.gov/repos/darshan/trunk@185 3b7491f3-a168-0410-bf4b-c445ed680a29

Makefile.in

@@ -94,6 +94,7 @@ install:: all
 	install -m 755 darshan-analyzer $(bindir)
 	install -m 755 darshan-mk-log-dirs.pl $(bindir)
 	install -m 755 darshan-gen-cc.pl $(bindir)
+	install -m 755 darshan-gen-cxx.pl $(bindir)
 	install -m 755 compilers/mpicc-trace-bgp-V1R4 $(bindir)/mpicc
 	install -m 755 compilers/mpicxx-trace-bgp-V1R4 $(bindir)/mpicxx
 	install -m 755 compilers/mpif77-trace-bgp-V1R4 $(bindir)/mpif77

configure.in

@@ -170,4 +170,5 @@ compilers/mpicxx-trace-pcarns
 compilers/mpif77-trace-pcarns
 darshan-mk-log-dirs.pl
 darshan-gen-cc.pl
+darshan-gen-cxx.pl
 )

darshan-config.h.in

@@ -45,10 +45,13 @@
 /* Define to the one symbol short name of this package. */
 #undef PACKAGE_TARNAME
 
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
-/* The size of a `long int', as computed by sizeof. */
+/* The size of `long int', as computed by sizeof. */
 #undef SIZEOF_LONG_INT
 
 /* Define to 1 if you have the ANSI C header files. */

darshan-gen-cxx.pl.in

+#!/usr/bin/perl -w
+#
+#  (C) 2009 by Argonne National Laboratory.
+#      See COPYRIGHT in top-level directory.
+#
+
+# takes a standard mpicc script as an argument and tried to generate a
+# darshan-enabled mpicc script to mimic it's behavior
+
+use Getopt::Long;
+use English;
+
+$CP_WRAPPERS="@CP_WRAPPERS@";
+$DARSHAN_LIB_PATH="@darshan_lib_path@";
+$CP_ZLIB_LINK_FLAGS="@__CP_ZLIB_LINK_FLAGS@";
+
+my $input_file = "";
+my $output_file = "";
+
+process_args();
+
+# run original mpicc with -show argument to capture command line for
+# compilation and linking
+my $compile_cmd = `$input_file -show -c foo.c`;
+if (!($compile_cmd))
+{
+    printf STDERR "Error: failed to invoke $input_file with -show\n";
+    exit(1);
+}
+
+my $link_cmd = `$input_file -show foo.o -o foo`;
+if (!($link_cmd))
+{
+    printf STDERR "Error: failed to invoke $input_file with -show\n";
+    exit(1);
+}
+
+# check command lines for accuracy
+if(!($compile_cmd =~ /-c foo.c/) || !($link_cmd =~ /foo.o -o foo/))
+{
+    printf STDERR "Error: faulty output from $input_file with -show.\n";
+    exit(1);
+}
+chomp($compile_cmd);
+chomp($link_cmd);
+
+open (OUTPUT, ">$output_file") || die("Error opening output file: $!");
+
+# substitute arguments and darshan options into commands
+$base_link_cmd = $link_cmd;
+$base_link_cmd =~ s/foo.o -o foo/"\$\{allargs\[\@\]\}"/g;
+$link_cmd =~ s/foo.o -o foo/"\$\{allargs\[\@\]\}" -L$DARSHAN_LIB_PATH $CP_ZLIB_LINK_FLAGS -lmpichcxx -ldarshan-mpi-io -lz $CP_WRAPPERS/g;
+$link_cmd =~ s/$/ -L$DARSHAN_LIB_PATH -ldarshan-posix/g;
+$compile_cmd =~ s/-c foo.c/"\$\{allargs\[\@\]\}"/g;
+
+print OUTPUT <<'EOF';
+#!/bin/bash
+#
+# Auto-generated mpicc script from darshan-gen-cc.pl
+#
+#
+# Internal variables
+# Show is set to echo to cause the compilation command to be echoed instead 
+# of executed.
+Show=
+
+linking=yes
+allargs=("$@")
+argno=0
+for arg in "$@" ; do
+    # Set addarg to no if this arg should be ignored by the C compiler
+    addarg=yes
+    case "$arg" in 
+ 	# ----------------------------------------------------------------
+	# Compiler options that affect whether we are linking or no
+    -c|-S|-E|-M|-MM)
+    # The compiler links by default
+    linking=no
+    ;;
+    -show)
+    addarg=no
+    Show=echo
+    ;;
+    esac
+    if [ $addarg = no ] ; then
+	unset allargs[$argno]
+    fi
+    # Some versions of bash do not accept ((argno++))
+    argno=`expr $argno + 1`
+done
+if [ "$linking" = yes ] ; then
+    if [ -n "$C_LINKPATH_SHL" ] ; then
+	# prepend the path for the shared libraries to the library list
+	mpilibs="$C_LINKPATH_SHL$libdir $mpilibs"
+    fi
+EOF
+print OUTPUT <<EOF;
+    # Trial run to generate a symbol listing.  We only enable Darshan if:
+    # a) MPI is used
+    # b) PMPI is _not_ used
+    #
+    # We want Darshan to get out of the way if the user is doing a runtime
+    # test in configure (in which case MPI objects break the executable) or
+    # if the user is using another PMPI based tool
+
+    used_darshan=0
+
+    # create a temporary file
+    tmpfile=`mktemp`
+    # generate a map of the symbol names
+    # don't use -shared for this step
+    stock_link_cmd_no_shared=`echo $base_link_cmd | sed 's/ -shared / /g'`
+    \$stock_link_cmd_no_shared -Wl,-Map,\$tmpfile \$LDFLAGS -o /dev/null >& /dev/null
+    # is MPI in there?
+    grep MPI \$tmpfile >& /dev/null
+    rc_mpi=\$?
+
+    # is PMPI being used for any init, finalize, or mpi-io calls?
+    grep -E \\(PMPI_File_\\)\\|\\(PMPI_Init\\)\\|\\(PMPI_Finalize\\) \$tmpfile | grep -v -E \\(mpich.cnk.a\\|mpich.a\\) |grep \\(PMPI >& /dev/null
+    rc_pmpi=\$?
+
+    # normal or cnk libraries?
+    grep -E mpich\\.cnk\\.a \$tmpfile >& /dev/null
+    rc_cnk_check=\$?
+    if [ \$rc_cnk_check -eq 0 ] ; then
+        link_cmd=`echo $link_cmd | sed 's/-lmpichcxx/-lcxxmpich.cnk/g'`
+    fi
+
+    rm \$tmpfile >& /dev/null
+
+    # disable darshan if the executable is not an MPI program (this feature
+    # mainly allows runtime configure tests to work
+    if [ \$rc_mpi -eq 0 ] ; then
+        # disable darshan if something else is already using PMPI; we don't
+        # want to cause any symbol conflicts
+        if [ \$rc_pmpi -ne 0 ] ; then
+            \$Show $link_cmd
+            used_darshan=1
+        fi
+    fi
+
+    # otherwise use the normal command line
+    if [ "\$used_darshan" = "0" ] ; then
+        \$Show $base_link_cmd
+    fi
+    rc=\$?
+else
+    \$Show $compile_cmd
+    rc=\$?
+fi
+
+exit \$rc
+EOF
+
+close(OUTPUT);
+
+chmod(0755, $output_file); 
+
+exit(0);
+
+sub process_args
+{
+    use vars qw( $opt_help $opt_output );
+
+    Getopt::Long::Configure("no_ignore_case", "bundling");
+    GetOptions( "help",
+        "output=s");
+
+    if($opt_help)
+    {
+        print_help();
+        exit(0);
+    }
+
+    if($opt_output)
+    {
+        $output_file = $opt_output;
+    }
+    else
+    {
+        print_help();
+        exit(1);
+    }
+
+    # there should only be one remaining argument: the input file 
+    if($#ARGV != 0)
+    {
+        print "Error: invalid arguments.\n";
+        print_help();
+        exit(1);
+    }
+    $input_file = $ARGV[0];
+
+    return;
+}
+
+sub print_help
+{
+    print <<EOF;
+
+Usage: $PROGRAM_NAME <stock mpicc> --output <modified mpicc>
+
+    --help          Prints this help message
+    --output        Specifies name of output script
+
+Purpose:
+
+    This script takes an existing mpicc script as input and generates a
+    modified version that includes Darshan support.
+
+EOF
+    return;
+}
+