[PATCH RFC 3/4] package.bbclass: Improve shlibs pkgdata file format

[PATCH RFC 3/4] package.bbclass: Improve shlibs pkgdata file format

[Richard Purdie]

Instead of having a .list file and a .ver file, place the version
information into the .list file in a ":" delimited string.

Also place the path to the library here, this can then be used to
evaluate RPATHs in the shlib dependency code.

Since the disk format has changed, the easiest way to avoid build
failures in the same TMPDIR is to change the shlibs directory to
shlibs2. sstate dependency code with ensure everything rebuilds.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/package.bbclass b/meta/classes/package.bbclass
index bc91e9f..d7de72b 100644
--- a/meta/classes/package.bbclass
+++ b/meta/classes/package.bbclass
@@ -1326,8 +1326,8 @@ python package_do_filedeps() {
         d.setVar("FILERPROVIDESFLIST_" + pkg, " ".join(provides_files[pkg]))
 }
 
-SHLIBSDIRS = "${PKGDATA_DIR}/${MLPREFIX}shlibs"
-SHLIBSWORKDIR = "${PKGDESTWORK}/${MLPREFIX}shlibs"
+SHLIBSDIRS = "${PKGDATA_DIR}/${MLPREFIX}shlibs2"
+SHLIBSWORKDIR = "${PKGDESTWORK}/${MLPREFIX}shlibs2"
 
 python package_do_shlibs() {
     import re, pipes
@@ -1373,16 +1373,11 @@ python package_do_shlibs() {
                     fd = open(os.path.join(dir, file))
                     lines = fd.readlines()
                     fd.close()
-                    ver_file = os.path.join(dir, dep_pkg + '.ver')
-                    lib_ver = None
-                    if os.path.exists(ver_file):
-                        fd = open(ver_file)
-                        lib_ver = fd.readline().rstrip()
-                        fd.close()
                     for l in lines:
-                        shlib_provider[l.rstrip()] = (dep_pkg, lib_ver)
+                        s = l.strip().split(":")
+                        shlib_provider[s[0]] = (dep_pkg, s[2])
 
-    def linux_so(file, needed, sonames, renames):
+    def linux_so(file, needed, sonames, renames, pkgver):
         needs_ldconfig = False
         ldir = os.path.dirname(file).replace(pkgdest + "/" + pkg, '')
         cmd = d.getVar('OBJDUMP', True) + " -p " + pipes.quote(file) + " 2>/dev/null"
@@ -1404,7 +1399,7 @@ python package_do_shlibs() {
             m = re.match("\s+SONAME\s+([^\s]*)", l)
             if m:
                 this_soname = m.group(1)
-                prov = (this_soname, ldir)
+                prov = (this_soname, ldir, pkgver)
                 if not prov in sonames:
                     # if library is private (only used by package) then do not build shlib for it
                     if not private_libs or this_soname not in private_libs:
@@ -1415,7 +1410,7 @@ python package_do_shlibs() {
                     renames.append((file, os.path.join(os.path.dirname(file), this_soname)))
         return needs_ldconfig
 
-    def darwin_so(file, needed, sonames, renames):
+    def darwin_so(file, needed, sonames, renames, pkgver):
         if not os.path.exists(file):
             return
         ldir = os.path.dirname(file).replace(pkgdest, '')
@@ -1440,7 +1435,7 @@ python package_do_shlibs() {
             combos = get_combinations(name)
             for combo in combos:
                 if not combo in sonames:
-                    prov = (combo, ldir)
+                    prov = (combo, ldir, pkgver)
                     sonames.append(prov)
         if file.endswith('.dylib') or file.endswith('.so'):
             lafile = file.replace(os.path.join(pkgdest, pkg), d.getVar('PKGD', True))
@@ -1510,9 +1505,9 @@ python package_do_shlibs() {
                 if cpath.islink(file):
                     continue
                 if targetos == "darwin" or targetos == "darwin8":
-                    darwin_so(file, needed, sonames, renames)
+                    darwin_so(file, needed, sonames, renames, pkgver)
                 elif os.access(file, os.X_OK) or lib_re.match(file):
-                    ldconfig = linux_so(file, needed, sonames, renames)
+                    ldconfig = linux_so(file, needed, sonames, renames, pkgver)
                     needs_ldconfig = needs_ldconfig or ldconfig
         for (old, new) in renames:
             bb.note("Renaming %s to %s" % (old, new))
@@ -1520,7 +1515,6 @@ python package_do_shlibs() {
             pkgfiles[pkg].remove(old)
 	    
         shlibs_file = os.path.join(shlibswork_dir, pkg + ".list")
-        shver_file = os.path.join(shlibswork_dir, pkg + ".ver")
         if len(sonames):
             fd = open(shlibs_file, 'w')
             for s in sonames:
@@ -1529,12 +1523,9 @@ python package_do_shlibs() {
                     if old_pkg != pkg:
                         bb.warn('%s-%s was registered as shlib provider for %s, changing it to %s-%s because it was built later' % (old_pkg, old_pkgver, s[0], pkg, pkgver))
                 bb.debug(1, 'registering %s-%s as shlib provider for %s' % (pkg, pkgver, s[0]))
-                fd.write(s[0] + '\n')
+                fd.write(s[0] + ':' + s[1] + ':' + s[2] + '\n')
                 shlib_provider[s[0]] = (pkg, pkgver)
             fd.close()
-            fd = open(shver_file, 'w')
-            fd.write(pkgver + '\n')
-            fd.close()
         if needs_ldconfig and use_ldconfig:
             bb.debug(1, 'adding ldconfig call to postinst for %s' % pkg)
             postinst = d.getVar('pkg_postinst_%s' % pkg, True)