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Diffstat (limited to 'nx-X11/config/util/elistgen.usl')
| -rw-r--r-- | nx-X11/config/util/elistgen.usl | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/nx-X11/config/util/elistgen.usl b/nx-X11/config/util/elistgen.usl new file mode 100644 index 000000000..f17bcdb22 --- /dev/null +++ b/nx-X11/config/util/elistgen.usl @@ -0,0 +1,221 @@ +XCOMM!/bin/sh +XCOMM $Xorg: elistgen.usl,v 1.3 2000/08/17 19:41:52 cpqbld Exp $ +XCOMM +XCOMM ######################################################################### +XCOMM Construct shared-library export lists for Novell based on standardized +XCOMM export list description file +XCOMM +XCOMM Usage: exportlistgen libFoo.so libFoo.elist > libFoo.lopt +XCOMM +XCOMM libFoo.so => 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 linker to +XCOMM reconstruct the shared library. +XCOMM +XCOMM (c) Copyright 1996 Digital Equipment Corporation. +XCOMM (c) Copyright 1996 Hewlett-Packard Company. +XCOMM (c) Copyright 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 ######################################################################### +XCOMM +XCOMM $XFree86$ + +XCOMM Utility programs +FILTER=CXXFILT # C++ symbol demangler +AWK=awk # awk + +XCOMM For nm, cat, pr, sed, awk, c++filt +PATH=/usr/bin:/bin:/usr/ucb:/usr/ccs/bin + +XCOMM Temporary files +EXPORTLIST=/tmp/elistgen1.$$ # list of export symbols from "libfoo.elist" +NMLIST=/tmp/elistgen2.$$ # name list from libfoo.sl +FILTLIST=/tmp/elistgen3.$$ # demangled (C++) version of NMLIST + +XCOMM Print useful information at the top of the output +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 -msrv` +echo "# " + +XCOMM Extract the globally visible symbols from target library. +XCOMM The NMLIST generated here is later used to cross-check the symbols in the +XCOMM supplied export-list. +nm -p $1 | $AWK ' + / [TD] [^\$]/{print $3} # Text, Data, BSS, or Secondary symbols +' > $NMLIST + +XCOMM Demangle the global library symbols. This operation is necessary to convert +XCOMM mangled C++ symbols into their C++ notation. +${FILTER:-cat} $NMLIST > $FILTLIST + +XCOMM Clean up the export-list description file. +XCOMM Note that C++ symbols may have embedded spaces in them. +cat $2 | $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.elist + iplusplus = 0; # C++ internal symbols in libfoo.elist + implicit = ""; # Handling of implicit symbols + } + $1 == "default" { + # 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 ++; + print $1 ";;" $2; + next; + } + $1 == "publicC++" || $1 == "privateC++" { + cplusplus ++; + string = $2; + for (n = 3; n <= NF; n++) { + string = string " " $n; + } + print $1 ";;" string; + next; + } + $1 == "internal" { + isyms ++; + print $1 ";;" $2; + next; + } + $1 == "internalC++" { + iplusplus ++; + string = $2; + for (n = 3; n <= NF; n++) { + string = string " " $n; + } + print $1 ";;" string; + next; + } + $1 == "#line" || $1 == "#" { + # 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; + } + } +' > $EXPORTLIST + +XCOMM Read in the above files and write result to stdout. The contents +XCOMM of NMLIST and FILTLIST are used to construct a symbol lookup table. +XCOMM The contents of EXPORTLIST are converted with the help of this table. +XCOMM Use ";" as a delimiter in the symbol lookup table. +(pr -m -s";" -t -w1024 $NMLIST $FILTLIST | sed 's/ / /g'; cat $EXPORTLIST) | $AWK ' + BEGIN { + FS = ";"; + implicit = 0; + } + NF == 2 { + # This is "pr" output, i.e., symbol translation table + syms[$2] = $1; + next; + } + NF == 3 && $1 == "default" { + # 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 { + # 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; + + # Process it. + if (length(syms[$3]) > 0) { + # This symbol is present in the library. + if (donelist[$3]) + print "# Warning: Duplicate entry for", $3, + "in export list" | "cat 1>&2"; + if (donelist[$3] < export) { + if (export > 1) + print syms[$3]; + donelist[$3] = export; + } + } else { + # Do not complain about unknown forced-export symbols. + if (export == 4) { + print $3; + donelist[$3] = export; + } else + print "# Warning:", $3, + "was not in the nm list for this library" | "cat 1>&2"; + } + + next; + } + END { + # Ignore built-in linker symbols. + if (implicit == 0) { + if (!donelist["_DYNAMIC"]) + donelist["_DYNAMIC"] = 1; + if (!donelist["_GLOBAL_OFFSET_TABLE_"]) + donelist["_GLOBAL_OFFSET_TABLE_"] = 1; + if (!donelist["_edata"]) + donelist["_edata"] = 1; + if (!donelist["_end"]) + donelist["_end"] = 1; + if (!donelist["_etext"]) + donelist["_etext"] = 1; + } + + # Process implicit symbols. + for (i in syms) { + if (!donelist[i] && (length(syms[i]) > 0)) { + # Ignore C++ compiler symbols + if (implicit == 0 && + (syms[i] !~ /^__vtbl__[0-9]*_/) && + (syms[i] !~ /^__cpp_unixware_[0-9]*$/)) + 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 |