darshan-gen-cxx.pl.in 6.16 KB
Newer Older
Philip Carns's avatar
Philip Carns committed
1
2
3
4
5
6
#!/usr/bin/perl -w
#
#  (C) 2009 by Argonne National Laboratory.
#      See COPYRIGHT in top-level directory.
#

7
8
# takes a standard mpicxx script as an argument and tried to generate a
# darshan-enabled mpicxx script to mimic it's behavior
Philip Carns's avatar
Philip Carns committed
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51

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;
52
$link_cmd =~ s/foo.o -o foo/"\$\{newallargs\[\@\]\}" -L$DARSHAN_LIB_PATH $CP_ZLIB_LINK_FLAGS -ldarshan-mpi-io -lz $CP_WRAPPERS/g;
Philip Carns's avatar
Philip Carns committed
53
54
55
$link_cmd =~ s/$/ -L$DARSHAN_LIB_PATH -ldarshan-posix/g;
$compile_cmd =~ s/-c foo.c/"\$\{allargs\[\@\]\}"/g;

56
57
58
59
# create link cmd with noshrargs variable
$link_cmd_no_shared = $base_link_cmd;
$link_cmd_no_shared =~ s/allargs/noshrargs/;

Philip Carns's avatar
Philip Carns committed
60
print OUTPUT<<'EOF';
Philip Carns's avatar
Philip Carns committed
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
#!/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
Philip Carns's avatar
Philip Carns committed
101
print OUTPUT<<"EOF";
Philip Carns's avatar
Philip Carns committed
102
103
104
105
106
107
108
109
    # 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

110
111
    # if allargs includes any libraries, then we need to get 
    # -ldarshan-mpi-io in there first
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
    argno=0;
    once=0;
    newallargs=\("\$\{allargs\[\@\]\}"\);
    for arg in "\$\{newallargs\[\@\]\}"; do
        res=`expr match "\$arg" "^-l"`;
        if [ \$res -gt 0 -a \$once -lt 1 ]; then
            newallargs[\$argno]=-ldarshan-mpi-io
            argno=`expr \$argno + 1`
            newallargs[\$argno]=\$arg;
            once=1;
        else
            newallargs[\$argno]=\$arg;
        fi
        argno=`expr \$argno + 1`
    done
127

Philip Carns's avatar
Philip Carns committed
128
129
130
131
132
133
    used_darshan=0

    # create a temporary file
    tmpfile=`mktemp`
    # generate a map of the symbol names
    # don't use -shared for this step
134
135
136
137
138
139
140
141
142
143
    argno=0
    noshrargs=\("\$\{allargs\[\@\]\}");
    for arg in "\$\{noshrargs\[\@\]\}"; do
        if [ "\$arg" = "-shared" ]; then
            unset noshrarg[\$argno];
        fi
        argno=`expr \$argno + 1`
    done
    $link_cmd_no_shared -Wl,-Map,\$tmpfile \$LDFLAGS -o /dev/null >& /dev/null

Philip Carns's avatar
Philip Carns committed
144
145
146
147
148
149
150
151
152
153
154
155
    # 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
156
157
158
159
160
161
162
        argno=0
        for arg in "\$\{newallargs\[\@\]\}"; do
            if [ "\$arg" = "-lcxxmpich" ]; then
                newallargs[\$argno]=-lcxxmpich.cnk;
            fi
            argno=`expr \$argno + 1`
        done
Philip Carns's avatar
Philip Carns committed
163
164
165
166
167
168
169
170
171
172
    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
173
            \$Show $link_cmd
Philip Carns's avatar
Philip Carns committed
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
            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
{
Philip Carns's avatar
Philip Carns committed
235
    print<<"EOF";
Philip Carns's avatar
Philip Carns committed
236

237
Usage: $PROGRAM_NAME <stock mpicxx> --output <modified mpicc>
Philip Carns's avatar
Philip Carns committed
238
239
240
241
242
243

    --help          Prints this help message
    --output        Specifies name of output script

Purpose:

244
    This script takes an existing mpicxx script as input and generates a
Philip Carns's avatar
Philip Carns committed
245
246
247
248
249
250
    modified version that includes Darshan support.

EOF
    return;
}