diff options
| -rwxr-xr-x | misc/alt-revdep-pax | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/misc/alt-revdep-pax b/misc/alt-revdep-pax new file mode 100755 index 0000000..a9445a1 --- /dev/null +++ b/misc/alt-revdep-pax @@ -0,0 +1,101 @@ +#!/usr/bin/env python + +# +# Note: This alternative way of doing revdep-pax only +# works on Gentoo systems where NEEDED.ELF.2 all the +# information we need generated by scanelf during emerge. +# +# See /usr/lib/portage/bin/misc-functions.sh ~line 520 +# echo "${arch:3};${obj};${soname};${rpath};${needed}" >> "${PORTAGE_BUILDDIR}"/build-info/NEEDED.ELF.2 +# + +import os +import re +import pax + +def get_forward_linkings(): + var_db_pkg = '/var/db/pkg' + + forward_linkings = {} + for cat in os.listdir(var_db_pkg): + catdir = '%s/%s' % (var_db_pkg, cat) + for pkg in os.listdir(catdir): + pkgdir = '%s/%s' % (catdir, pkg) + need = '%s/%s' % (pkgdir, 'NEEDED.ELF.2') + try: + g = open(need, 'r') + needs = g.readlines() + for line in needs: + line = line.strip() + link = re.split(';', line) + elf = link[1] + sonames = re.split(',', link[4]) + forward_linkings[elf] = sonames + except IOError: + continue #File probably doesn't exist, which is okay + + return forward_linkings + + +def get_library_mappings(): + var_db_pkg = '/var/db/pkg' + + library2soname_mappings = {} + soname2library_mappings = {} + + for cat in os.listdir(var_db_pkg): + catdir = '%s/%s' % (var_db_pkg, cat) + for pkg in os.listdir(catdir): + pkgdir = '%s/%s' % (catdir, pkg) + need = '%s/%s' % (pkgdir, 'NEEDED.ELF.2') + try: + g = open(need, 'r') + needs = g.readlines() + for line in needs: + line = line.strip() + link = re.split(';', line) + elf = link[1] + soname = link[2] + if soname: + library2soname_mappings[elf] = soname + soname2library_mappings[soname] = elf + except IOError: + continue #File probably doesn't exist, which is okay + + return ( library2soname_mappings, soname2library_mappings ) + +def main(): + forward_linkings = get_forward_linkings() + ( library2soname_mappings, soname2library_mappings ) = get_library_mappings() + + for elf in forward_linkings: + try: + flags = pax.getflags(elf)[0] + if flags: + print("%s %s" % (flags, elf)) + else: + print("NONE: %s" % elf) + except pax.error: + print("BUSY: %s" % elf) + + """ + for soname in sorted(soname2library_mappings): + elf = soname2library_mappings[soname] + print("%s : %s" % ( soname, elf )) + """ + + """ + for elf in forward_linkings: + sonames = forward_linkings[elf] + print("%s" % elf) + for soname in sorted(forward_linkings[elf]): + try: + print("\t%s\t=> %s" % (soname, soname2library_mappings[soname])) + except KeyError as e: + print("\t%s\t=> ****" % soname) + print("\n\n") + """ + + +if __name__ == '__main__': + main() |