def _handle_next(self):
task = self.inqueue.popleft()
logging.info("{0} unpacking {1}".format(self.name,
task["debuginfo"]["nvra"]))
task["debuginfo"]["unpacked_path"] = \
package.unpack_rpm_to_tmp(task["debuginfo"]["rpm_path"],
prefix=task["debuginfo"]["nvra"])
if task["debuginfo"]["nvra"].startswith("kernel-"):
logging.info("Generating function offset map for kernel modules")
task["function_offset_map"] = \
get_function_offset_map(task["debuginfo"]["unpacked_path"])
logging.info("{0} unpacking {1}".format(self.name, task["source"]["nvra"]))
task["source"]["unpacked_path"] = \
package.unpack_rpm_to_tmp(task["source"]["rpm_path"],
prefix=task["source"]["nvra"])
if not task["source"]["nvra"].startswith("kernel-debuginfo-common"):
specfile = None
for f in os.listdir(task["source"]["unpacked_path"]):
if f.endswith(".spec"):
specfile = os.path.join(task["source"]["unpacked_path"], f)
if not specfile:
logging.info("Unable to find specfile")
else:
src_dir = os.path.join(task["source"]["unpacked_path"],
"usr", "src", "debug")
logging.debug("SPEC file: {0}".format(specfile))
logging.debug("Running rpmbuild")
with open("/dev/null", "w") as null:
retcode = call(["rpmbuild", "--nodeps", "-bp", "--define",
"_sourcedir {0}".format(task["source"]["unpacked_path"]),
"--define", "_builddir {0}".format(src_dir),
"--define",
"_specdir {0}".format(task["source"]["unpacked_path"]),
specfile], stdout=null, stderr=null)
if retcode:
logging.warn("rpmbuild exitted with {0}".format(retcode))
task["source"]["files"] = walk(task["source"]["unpacked_path"])
for pkg in task["packages"]:
logging.info("{0} unpacking {1}".format(self.name, pkg["nvra"]))
if pkg["rpm_path"] == task["debuginfo"]["rpm_path"]:
logging.debug("Already unpacked")
pkg["unpacked_path"] = task["debuginfo"]["unpacked_path"]
continue
pkg["unpacked_path"] = \
package.unpack_rpm_to_tmp(pkg["rpm_path"],
prefix=pkg["nvra"])
self.outqueue.put(task)
def retrace_symbols(session):
'''
Find all Symbol Sources of Symbols that require retracing.
Symbol Sources are grouped by build_id to lower the need of
installing the same RPM multiple times.
'''
symbol_sources = (session.query(SymbolSource)
.filter(SymbolSource.source_path == None)
.order_by(SymbolSource.build_id, SymbolSource.path)).all()
total = len(symbol_sources)
retraced = 0
logging.info('Retracing {0} symbols'.format(total))
while symbol_sources:
retraced += 1
source = symbol_sources.pop()
logging.info('[{0}/{1}] Retracing {2} with offset {3}'.format(
retraced, total, source.path, source.offset))
if not source.frames:
logging.debug('No frames assigned with this symbol, skipping')
continue
if source.frames[0].backtrace.report.type != 'USERSPACE':
logging.debug('Skipping non-USERSPACE symbol')
continue
# Find debuginfo and then binary package providing the build id.
# FEDORA/RHEL SPECIFIC
debuginfo_path = "/usr/lib/debug/.build-id/{0}/{1}.debug".format(
source.build_id[:2], source.build_id[2:])
logging.debug('Looking for: {0}'.format(debuginfo_path))
debuginfo_packages = (session.query(Package)
.join(PackageDependency)
.filter(
(PackageDependency.name == debuginfo_path) &
(PackageDependency.type == "PROVIDES")
)).all()
logging.debug("Found {0} debuginfo packages".format(
len(debuginfo_packages)))
packages_found = False
for debuginfo_package in debuginfo_packages:
# Check whether there is a binary package corresponding to
# the debuginfo package that provides the required binary.
def find_binary_package(path):
logging.debug('Looking for: {0}'.format(path))
return (session.query(Package)
.join(PackageDependency)
.filter(
(Package.build_id == debuginfo_package.build_id) &
(Package.arch_id == debuginfo_package.arch_id) &
(PackageDependency.name == path) &
(PackageDependency.type == "PROVIDES")
)).first()
orig_path = source.path
if ('/../' in source.path) or ('/./' in source.path):
logging.debug("Source path is not normalized, normalizing")
source.path = os.path.abspath(source.path)
binary_package = find_binary_package(source.path)
if binary_package is None:
logging.info("Binary package not found, trying /usr fix")
# Try adding/stripping /usr
if '/usr' in source.path:
logging.debug('Stripping /usr')
source.path = source.path.replace('/usr', '')
binary_package = find_binary_package(source.path)
else:
logging.debug('Adding /usr')
source.path = '/usr' + source.path
binary_package = find_binary_package(source.path)
if binary_package is None:
# Revert to original path
source.path = orig_path
session.expunge(source)
logging.warning("Matching binary package not found")
continue
# We found a valid pair of binary and debuginfo packages.
# Unpack them to temporary directories.
# Search for possible conflicts with normalized path
conflict = session.query(SymbolSource) \
.filter((SymbolSource.path == source.path) &
(SymbolSource.offset == source.offset) &
(SymbolSource.build_id == source.build_id)) \
.first()
if conflict and conflict.id != source.id:
logging.debug("Merging SymbolSource {0}".format(conflict.id))
session.expunge(source)
# replace SymbolSource by the existing one
for frame in source.frames:
frame.symbolsource_id = conflict.id
session.flush()
# delete the unnecessary SymbolSource
session.query(SymbolSource).filter(SymbolSource.id == source.id).delete()
session.flush()
source = conflict
try:
binary_dir = package.unpack_rpm_to_tmp(
binary_package.get_lob_path("package"),
prefix="faf-symbol-retrace")
except Exception, e:
logging.error("Unable to extract binary package RPM: {0},"
" path: {1}, reason: {2}".format(binary_package.nvra(),
binary_package.get_lob_path("package"), e))
continue
try:
debuginfo_dir = package.unpack_rpm_to_tmp(
debuginfo_package.get_lob_path("package"),
prefix="faf-symbol-retrace")
except:
logging.error("Unable to extract debuginfo RPM: {0},"
" path: {1}, reason: {2}".format(debuginfo_package.nvra(),
debuginfo_package.get_lob_path("package"), e))
continue
logging.debug("Binary package RPM: {0},"
" path: {1}".format(binary_package.nvra(),
binary_package.get_lob_path("package")))
logging.debug("Debuginfo package RPM: {0},"
" path: {1}".format(debuginfo_package.nvra(),
debuginfo_package.get_lob_path("package")))
# Found matching pair, stop trying.
packages_found = True
break
if not packages_found:
continue
retrace_symbol_wrapper(session, source, binary_dir, debuginfo_dir)
while (symbol_sources and
symbol_sources[-1].build_id == source.build_id and
symbol_sources[-1].path == source.path):
logging.debug("Reusing extracted directories")
retraced += 1
source = symbol_sources.pop()
logging.info('[{0}/{1}] Retracing {2} with offset {3}'.format(
retraced, total, source.path, source.offset))
retrace_symbol_wrapper(session, source, binary_dir,
debuginfo_dir)
shutil.rmtree(binary_dir)
shutil.rmtree(debuginfo_dir)