+++ /dev/null
-XCOMM!/bin/sh
-XCOMM $XConsortium: elistgen.ibm /main/2 1996/12/04 10:13:18 swick $
-XCOMM
-XCOMM #########################################################################
-XCOMM Construct shared-library export lists for IBM-AIX based on standardized
-XCOMM export list description file
-XCOMM
-XCOMM Usage: elistgen libfoo.sl libfoo.elist > libfoo.lopt
-XCOMM
-XCOMM libfoo.a => shared library of interest
-XCOMM libfoo.elist => Meta description of necessary export list.
-XCOMM
-XCOMM The output file, "libfoo.lopt" may then be passed to the IBM linker to
-XCOMM reconstruct the shared library, libfoo.sl.
-XCOMM
-XCOMM Author: Yanling Qi 10/03/94, Last updated 10/03/94
-XCOMM (c) Copyright 1996 Digital Equipment Corporation.
-XCOMM (c) Copyright 1996 Hewlett-Packard Company.
-XCOMM (c) Copyright 1994,1996 International Business Machines Corp.
-XCOMM (c) Copyright 1996 Sun Microsystems, Inc.
-XCOMM (c) Copyright 1996 Novell, Inc.
-XCOMM (c) Copyright 1996 FUJITSU LIMITED.
-XCOMM (c) Copyright 1996 Hitachi.
-XCOMM
-XCOMM #########################################################################
-
-#define HASH #
-
-XCOMM Utility programs
-FILTER=CXXFILT # C++ symbol demangler
-AWK=awk # awk
-
-XCOMM For dump, cat, pr, expand, awk, c++filt
-PATH=/usr/bin:/bin:/usr/ucb:/usr/lpp/xlC/bin
-
-XCOMM Temporary files
-EXPORTLIST=/tmp/elistgen1.$$ # export directives from "libfoo.list"
-NMLIST=/tmp/elistgen2.$$ # name list from libfoo.sl
-FILTLIST=/tmp/elistgen3.$$ # demangled (C++) version of above
-
-XCOMM Print useful information
-echo "*" `date`
-echo "* This linker options list was produced by" $0
-echo "* Input export list description taken from:" $2
-echo "* Target library:" $1
-echo "* Target Operating System:" `uname`
-echo "*"
-
-XCOMM Extract the globally visible symbols from target library
-dump -g $1 | $AWK '$1 ~ /[0-9][0-9]/ && $2 !~ /^[\.]/ {print $2}' > $NMLIST
-
-XCOMM Demangle the global library symbols
-${FILTER:-cat} $NMLIST > $FILTLIST
-
-XCOMM
-XCOMM Clean up the export-list description file.
-XCOMM Note that C++ symbols may have embedded spaces in them.
-XCOMM
-$AWK '
- BEGIN {
- csyms = 0; # C language symbols in libfoo.list
- cplusplus = 0; # C++ language symbols in libfoo.list
- isyms = 0; # C internal symbols in libfoo.list
- iplusplus = 0; # C++ internal symbols in libfoo.list
- count = 0; # Running count of symbols
- implicit = ""; # Handling of implicit symbols.
- }
- $1 == "default" {
- HASH A default clause suppresses warnings about implicit symbols.
- if ($2 != "" && $2 != "force" && $2 != "public" &&
- $2 != "private" && $2 != "internal") {
- print "# Warning: illegal default clause:", $2 | "cat 1>&2";
- next;
- }
- if (implicit != "")
- print "# Warning: multiple default clauses." | "cat 1>&2";
- implicit = $2;
- next;
- }
- $1 == "force" || $1 == "public" || $1 == "private" {
- csyms ++;
- symbol[count++] = $1 ";;" $2;
- next;
- }
- $1 == "publicC++" || $1 == "privateC++" {
- HASH forceC++ is unsupported because we only know how to demangle,
- HASH not how to mangle symbols, and the final ld input file must
- HASH be mangled.
- cplusplus ++;
- string = $2;
- for (n = 3; n <= NF; n++)
- string = string " " $n;
- symbol[count++] = $1 ";;" string;
- next;
- }
- $1 == "internal" {
- isyms ++;
- symbol[count++] = $1 ";;" $2;
- next;
- }
- $1 == "internalC++" {
- iplusplus ++;
- string = ";;" $2;
- for (n = 3; n <= NF; n++)
- string = string " " $n;
- symbol[count++] = $1 ";;" string;
- next;
- }
- $1 == "#line" || $1 == "#" {
- HASH cpp will have removed comments, but may have added other stuff.
- next;
- }
- NF > 0 {
- print "# Warning: unrecognized directive:", $0 | "cat 1>&2";
- next;
- }
- END {
- printf("# Exporting %d C and %d C++ symbols, hiding %d and %d.\n",
- csyms, cplusplus, isyms, iplusplus) | "cat 1>&2";
- if (implicit != "") {
- print "# Unspecified symbols are " implicit "." | "cat 1>&2";
- print "default;;" implicit;
- }
- for (i in symbol)
- print symbol[i];
- }
-' $2 > $EXPORTLIST
-
-XCOMM
-XCOMM Read in the above files and write result to stdout. Use the
-XCOMM delimiter ";" to identify the entries in the symbol lookup table.
-XCOMM
-(pr -m -s";" -t -w1024 $NMLIST $FILTLIST | expand -t 1; cat $EXPORTLIST) | $AWK '
- BEGIN {
- FS = ";";
- implicit = 0;
- }
- NF == 2 {
- HASH This is "pr" output, i.e., symbol translation table
- r2=$2
- gsub(/ /,"",r2); # Remove spaces because c++filt is unpredictable
- syms[r2] = $1;
- r1=$1;
- gsub(/ /,"",r1);
- mangled[r1] = 1; # Save the mangling because the export lists
- HASH sometimes use it instead of a prototype.
- next;
- }
- NF == 3 && $1 == "default" {
- HASH Treatment of unspecified symbols.
- if ($3 == "internal")
- implicit = 1;
- else if ($3 == "private" || $3 == "privateC++")
- implicit = 2;
- else if ($3 == "public" || $3 == "publicC++")
- implicit = 3;
- else # $3 == "force"
- implicit = 4;
- next;
- }
- NF == 3 {
- HASH Generate canonical demangled form as an alternate symbol.
- alt=$3;
- gsub(/ \.\.\./,",...",alt); # change " ..." to ",..." to match c++filt
- gsub(/ /,"",alt); # remove all spaces
- gsub(/\(void\)/,"()",alt); # change "(void)" to "()" to match c++filt
-
- HASH Parse our instructions for this symbol.
- if ($1 == "internal" || $1 == "internalC++")
- export = 1;
- else if ($1 == "private" || $1 == "privateC++")
- export = 2;
- else if ($1 == "public" || $1 == "publicC++")
- export = 3;
- else # $1 == "force"
- export = 4;
-
- HASH Process it.
- if ((length(syms[alt]) > 0) || mangled[alt]) {
- HASH This symbol is present in the library.
- if (donelist[alt])
- print "# Warning: Duplicate entry for", $3,
- "in export list" | "cat 1>&2";
- if (donelist[alt] < export) {
- if (export > 1)
- print syms[alt];
- donelist[alt] = export;
- }
- } else {
- HASH Print forced-export symbols without complaining.
- if (export == 4) {
- print alt;
- donelist[alt] = export;
- } else {
- print "# Warning:", $3,
- "was not in the nm list for this library" | "cat 1>&2";
- }
- }
-
- next;
- }
- END {
- HASH Process implicit symbols.
- for (i in syms) {
- if ((! donelist[i]) && (length(syms[i]) > 0)) {
- HASH Do not complain about C++ virtual function tables.
- if (implicit == 0 && syms[i] !~ /^__vft[0-9]*_/)
- print "# Warning:", syms[i],
- "was not in the export list" | "cat 1>&2";
- if (implicit > 1)
- print syms[i];
- }
- }
- }
-'
-
-XCOMM Clean up temporary files
-rm $EXPORTLIST
-rm $NMLIST
-rm $FILTLIST
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