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Create symbols to export in libtdb dynamically from tdb.h.
This adds a general mechanism to create version-scripts for linking shared libraries from one or several header files, similar to mkproto.sh/awk. Michael
This commit is contained in:
Michael Adam
parent
e92fdf6b20
commit
65817703c4
@ -148,6 +148,8 @@ LIBTALLOC=$(LIBTALLOC_STATIC_TARGET) @LIBTALLOC_SHARED@
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LIBTDB_SHARED_TARGET=@LIBTDB_SHARED_TARGET@
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LIBTDB_STATIC_TARGET=@LIBTDB_STATIC_TARGET@
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LIBTDB=$(LIBTDB_STATIC_TARGET) @LIBTDB_SHARED@
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LIBTDB_SYMS=exports/libtdb.syms
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LIBTDB_HEADERS=@tdbdir@/include/tdb.h
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LIBSMBCLIENT=bin/libsmbclient.a @LIBSMBCLIENT_SHARED@
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LIBSMBSHAREMODES=bin/libsmbsharemodes.a @LIBSMBSHAREMODES_SHARED@
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@ -1471,7 +1473,12 @@ $(LIBTALLOC_STATIC_TARGET): $(BINARY_PREREQS) $(LIBTALLOC_OBJ0)
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@echo Linking non-shared library $@
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@-$(AR) -rc $@ $(LIBTALLOC_OBJ0)
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$(LIBTDB_SHARED_TARGET): $(BINARY_PREREQS) $(LIBTDB_OBJ)
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MKSYMS_SH = $(srcdir)/script/mksyms.sh
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$(LIBTDB_SYMS): $(LIBTDB_HEADERS)
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@$(MKSYMS_SH) $(AWK) $@ $(LIBTDB_HEADERS)
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$(LIBTDB_SHARED_TARGET): $(BINARY_PREREQS) $(LIBTDB_OBJ) $(LIBTDB_SYMS)
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@echo Linking shared library $@
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@$(SHLD_DSO) $(LIBTDB_OBJ) \
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@SONAMEFLAG@`basename $@`.$(SONAME_VER)
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@ -1998,7 +2005,7 @@ installlibtdb: installdirs libtdb
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-$(INSTALLLIBCMD_SH) $(LIBTDB_SHARED_TARGET) $(DESTDIR)$(LIBDIR)
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-$(INSTALLLIBCMD_A) $(LIBTDB_STATIC_TARGET) $(DESTDIR)$(LIBDIR)
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@$(SHELL) $(srcdir)/script/installdirs.sh $(INSTALLPERMS_BIN) $(DESTDIR) ${prefix}/include
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-$(INSTALLCMD) -m $(INSTALLPERMS_DATA) @tdbdir@/include/tdb.h $(DESTDIR)${prefix}/include
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-$(INSTALLCMD) -m $(INSTALLPERMS_DATA) $(LIBTDB_HEADERS) $(DESTDIR)${prefix}/include
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installlibsmbsharemodes: installdirs libsmbsharemodes
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@$(SHELL) $(srcdir)/script/installdirs.sh $(INSTALLPERMS_BIN) $(DESTDIR) $(LIBDIR)
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@ -2132,7 +2139,8 @@ clean: delheaders
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$(LIBTALLOC) $(LIBSMBCLIENT) $(LIBADDNS) \
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$(LIBSMBSHAREMODES) $(EVERYTHING_PROGS) $(LIBNETAPI) \
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bin/libwbclient.so.0 bin/timelimit \
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.headers.stamp */src/*.o proto_exists
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.headers.stamp */src/*.o proto_exists \
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$(LIBTDB_SYMS)
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-rm -rf t_dir
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# Making this target will just make sure that the prototype files
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@ -1,4 +0,0 @@
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{
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global: tdb_*;
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local: *;
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};
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76
source/script/mksyms.awk
Normal file
76
source/script/mksyms.awk
Normal file
@ -0,0 +1,76 @@
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#
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# mksyms.awk
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#
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# Extract symbols to export from C-header files.
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# output in version-script format for linking shared libraries.
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#
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# Copyright (C) 2008 Micheal Adam <obnox@samba.org>
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#
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BEGIN {
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inheader=0;
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current_file="";
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print "#"
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print "# This file is automatically generated with \"make symbols\". DO NOT EDIT "
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print "#"
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print "{"
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print "\tglobal:"
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}
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END {
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print""
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print "\tlocal: *;"
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print "};"
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}
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{
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if (FILENAME!=current_file) {
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print "\t\t# The following definitions come from",FILENAME
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current_file=FILENAME
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}
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if (inheader) {
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if (match($0,"[)][ \t]*[;][ \t]*$")) {
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inheader = 0;
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}
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next;
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}
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}
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/^static/ || /^[ \t]*typedef/ || !/^[a-zA-Z\_]/ {
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next;
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}
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/^extern[ \t]+[^()]+[;][ \t]*$/ {
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gsub(/[^ \t]+[ \t]+/, "");
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sub(/[;][ \t]*$/, "");
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printf "\t\t%s;\n", $0;
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next;
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}
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# look for function headers:
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{
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gotstart = 0;
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if ($0 ~ /^[A-Za-z_][A-Za-z0-9_]+/) {
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gotstart = 1;
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}
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if(!gotstart) {
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next;
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}
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}
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/[_A-Za-z0-9]+[ \t]*[(].*[)][ \t]*;[ \t]*$/ {
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sub(/[(].*$/, "");
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gsub(/[^ \t]+[ \t]+/, "");
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gsub(/^[*]/, "");
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printf "\t\t%s;\n",$0;
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next;
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}
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/[_A-Za-z0-9]+[ \t]*[(]/ {
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inheader=1;
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sub(/[(].*$/, "");
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gsub(/[^ \t]+[ \t]+/, "");
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gsub(/^[*]/, "");
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printf "\t\t%s;\n",$0;
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next;
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}
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45
source/script/mksyms.sh
Executable file
45
source/script/mksyms.sh
Executable file
@ -0,0 +1,45 @@
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#! /bin/sh
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#
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# mksyms.sh
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#
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# Extract symbols to export from C-header files.
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# output in version-script format for linking shared libraries.
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#
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# This is the shell warpper for the mksyms.awk core script.
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#
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# Copyright (C) 2008 Micheal Adam <obnox@samba.org>
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#
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LANG=C; export LANG
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LC_ALL=C; export LC_ALL
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LC_COLLATE=C; export LC_COLLATE
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if [ $# -lt 2 ]
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then
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echo "Usage: $0 awk output_file header_files"
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exit 1
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fi
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awk="$1"
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shift
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symsfile="$1"
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shift
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symsfile_tmp="$symsfile.$$.tmp~"
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proto_src="`echo $@ | tr ' ' '\n' | sort | uniq `"
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echo creating $symsfile
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mkdir -p `dirname $symsfile`
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${awk} -f script/mksyms.awk $proto_src > $symsfile_tmp
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if cmp -s $symsfile $symsfile_tmp 2>/dev/null
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then
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echo "$symsfile unchanged"
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rm $symsfile_tmp
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else
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mv $symsfile_tmp $symsfile
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fi
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