source: trunk/gui/cf/ldAix @ 4503

Last change on this file since 4503 was 1866, checked in by gah, 10 years ago
File size: 2.6 KB
Line 
1
2#
3# ldAix ldCmd ldArg ldArg ...
4#
5# This shell script provides a wrapper for ld under AIX in order to
6# create the .exp file required for linking.  Its arguments consist
7# of the name and arguments that would normally be provided to the
8# ld command.  This script extracts the names of the object files
9# from the argument list, creates a .exp file describing all of the
10# symbols exported by those files, and then invokes "ldCmd" to
11# perform the real link.
12#
13# SCCS: @(#) ldAix 1.8 97/02/21 14:50:27
14
15# Extract from the arguments the names of all of the object files.
16
17args=$*
18ofiles=""
19for i do
20    x=`echo $i | grep '[^.].o$'`
21    if test "$x" != ""; then
22        ofiles="$ofiles $i"
23    fi
24done
25
26# Create the export file from all of the object files, using nm followed
27# by sed editing.  Here are some tricky aspects of this:
28#
29# 1. Nm produces different output under AIX 4.1 than under AIX 3.2.5;
30#    the following statements handle both versions.
31# 2. Use the -g switch to nm instead of -e under 4.1 (this shows just
32#    externals, not statics;  -g isn't available under 3.2.5, though).
33# 3. Eliminate lines that end in ":": these are the names of object
34#    files (relevant in 4.1 only).
35# 4. Eliminate entries with the "U" key letter;  these are undefined
36#    symbols (relevant in 4.1 only).
37# 5. Eliminate lines that contain the string "0|extern" preceded by space;
38#    in 3.2.5, these are undefined symbols (address 0).
39# 6. Eliminate lines containing the "unamex" symbol.  In 3.2.5, these
40#    are also undefined symbols.
41# 7. If a line starts with ".", delete the leading ".", since this will
42#    just cause confusion later.
43# 8. Eliminate everything after the first field in a line, so that we're
44#    left with just the symbol name.
45
46nmopts="-g -C"
47osver=`uname -v`
48if test $osver -eq 3; then
49  nmopts="-e"
50fi
51rm -f lib.exp
52echo "#! " >lib.exp
53/usr/ccs/bin/nm $nmopts -h $ofiles | sed -e '/:$/d' -e '/ U /d' -e '/[  ]0|extern/d' -e '/unamex/d' -e 's/^\.//' -e 's/[        |].*//' | sort | uniq >>lib.exp
54
55# Extract the name of the object file that we're linking.  If it's a .a
56# file, then link all the objects together into a single file "shr.o"
57# and then put that into the archive.  Otherwise link the object files
58# directly into the .a file.
59
60outputFile=`echo $args | sed -e 's/.*-o \([^ ]*\).*/\1/'`
61noDotA=`echo $outputFile | sed -e '/\.a$/d'`
62echo "noDotA=\"$noDotA\""
63if test "$noDotA" = "" ; then
64    linkArgs=`echo $args | sed -e 's/-o .*\.a /-o shr.o /'`
65    echo $linkArgs
66    eval $linkArgs
67    echo ar cr $outputFile shr.o
68    ar cr $outputFile shr.o
69    rm -f shr.o
70else
71    eval $args
72fi
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