def Libraries(pkg_data, error_mgr, logger, messenger, path_and_pkg_by_basename,
pkg_by_path):
"""Checks shared libraries.
Returns:
[
(u"CSWfoo", "why is this needed"),
]
New idea, a list of reasons:
[
[(u"CSWfoo", "why is it needed"),
(u"CSWfooalt", "there must be a reason"),
(u"CSWfooyetanother", "here's another one")],
[(u"CSWbar", "this serves another purpose")],
]
"""
pkgname = pkg_data["basic_stats"]["pkgname"]
logger.debug("Libraries(): pkgname = %s", repr(pkgname))
isalist = pkg_data["isalist"]
ldd_emulator = ldd_emul.LddEmulator()
orphan_sonames = []
for binary_info in pkg_data["binaries_dump_info"]:
binary_path, binary_basename = os.path.split(binary_info["path"])
for soname in binary_info["needed sonames"]:
orphan_sonames_tmp = ProcessSoname(ldd_emulator, soname,
path_and_pkg_by_basename,
binary_info, isalist,
binary_path, logger, error_mgr,
pkgname, messenger)
orphan_sonames.extend(orphan_sonames_tmp)
orphan_sonames = set(orphan_sonames)
for soname, binary_path in orphan_sonames:
if soname not in ALLOWED_ORPHAN_SONAMES:
error_mgr.ReportError(pkgname, "soname-not-found",
"%s is needed by %s" % (soname, binary_path))
def setUp(self): self.pkgmap_mocker = mox.Mox() self.e = ldd_emul.LddEmulator()
def Libraries(pkg_data, error_mgr, logger, messenger, path_and_pkg_by_basename,
pkg_by_path):
"""Checks shared libraries.
Returns:
[
(u"CSWfoo", "why is this needed"),
]
New idea, a list of reasons:
[
[(u"CSWfoo", "why is it needed"),
(u"CSWfooalt", "there must be a reason"),
(u"CSWfooyetanother", "here's another one")],
[(u"CSWbar", "this serves another purpose")],
]
"""
pkgname = pkg_data["basic_stats"]["pkgname"]
logger.debug("Libraries(): pkgname = %s", repr(pkgname))
isalist = pkg_data["isalist"]
ldd_emulator = ldd_emul.LddEmulator()
orphan_sonames = []
for binary_info in pkg_data["binaries_dump_info"]:
binary_path, binary_basename = os.path.split(binary_info["path"])
for soname in binary_info["needed sonames"]:
orphan_sonames_tmp = ProcessSoname(ldd_emulator, soname,
path_and_pkg_by_basename,
binary_info, isalist,
binary_path, logger, error_mgr,
pkgname, messenger)
orphan_sonames.extend(orphan_sonames_tmp)
sonames_unused = set()
ldd_info = pkg_data['ldd_info'][binary_info["path"]]
for ldd_response in ldd_info:
if (ldd_response['state'] == 'soname-unused'
and ldd_response['soname'] not in BASE_SOLARIS_LIBRARIES):
sonames_unused.add(ldd_response['soname'])
messenger.Message(
"Binary %s links to library %s but doesn't seem to use any"
" of its symbols. It usually happens because superfluous"
" libraries were added to the linker options, either because"
" of the configure script itself or because of the"
" \"pkg-config --libs\" output of one the dependency." %
("/" + binary_info["path"], ldd_response['soname']))
error_mgr.ReportError(
pkgname, "soname-unused",
"%s is needed by %s but never used" %
(ldd_response['soname'], "/" + binary_info["path"]))
# Even when direct binding is enabled, some symbols might not be
# directly bound because the library explicitely requested the symbol
# not to be drectly bound to.
# For example, libc.so.1 does it for symbol sigaction, free, malloc...
# So we consider that direct binding is enabled if at least one
# symbol is directly bound to because that definitely means that
# -B direct or -z direct was used.
binary_elf_info = pkg_data["binaries_elf_info"][binary_info["path"]]
libs = set(binary_info["needed sonames"])
# we skip the standard Solaris libraries: a lot of plugins only
# link to non directly bindable symbols of libc.so.1, librt.so.1
# which trigger false positives.
# Direct binding really matters for opencsw libraries so it's
# easier and riskless to just skip theses libraries
libs.difference_update(BASE_SOLARIS_LIBRARIES)
db_libs = set()
for syminfo in binary_elf_info['symbol table']:
if (syminfo['shndx'] == 'UNDEF' and syminfo['flags']
and 'D' in syminfo['flags'] and 'B' in syminfo['flags']):
db_libs.add(syminfo['soname'])
no_db_libs = libs.difference(db_libs)
# no symbol used means no way to detect if direct binding was
# enabled so we must ignore the libraries which were linked
# without being used
no_db_libs.difference_update(sonames_unused)
if no_db_libs:
messenger.Message(
"No symbol of binary %s is directly bound against the following"
" libraries: %s. Please make sure the binaries are compiled using"
" the \"-Bdirect\" linker option." %
("/" + binary_info["path"], ", ".join(no_db_libs)))
for soname in no_db_libs:
error_mgr.ReportError(
pkgname, "no-direct-binding",
"%s is not directly bound to soname %s" %
("/" + binary_info["path"], soname))
for version_dep in binary_elf_info['version needed']:
if (version_dep['soname'] in ALLOWED_VERSION_DEPENDENCIES
and not version_dep['version']
in ALLOWED_VERSION_DEPENDENCIES[version_dep['soname']]):
messenger.Message(
"Binary %s requires interface version %s in library %s which is"
" only available in recent Solaris releases." %
("/" + binary_info["path"], version_dep['version'],
version_dep['soname']))
error_mgr.ReportError(
pkgname, "forbidden-version-interface-dependencies",
"%s requires forbidden interface version %s in library %s"
% ("/" + binary_info["path"], version_dep['version'],
version_dep['soname']))
orphan_sonames = set(orphan_sonames)
for soname, binary_path in orphan_sonames:
if soname not in ALLOWED_ORPHAN_SONAMES:
error_mgr.ReportError(pkgname, "soname-not-found",
"%s is needed by %s" % (soname, binary_path))