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package.py: strip_execs: Support for .ko modules

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* Support stripping of .ko modules verifying file extension and
  check of content "vermagic="

(From OE-Core rev: 61a20502a8433729e2c25b8c718e6f93e3bb6614)

Signed-off-by: Tobias Hagelborn <tobiasha@axis.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Tobias Hagelborn
2017-08-25 13:32:37 +02:00
committed by Richard Purdie
parent f46240c7ba
commit 90c1e0da59
1 changed files with 14 additions and 9 deletions
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meta/lib/oe/package.py
+14 -9
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@@ -56,9 +56,12 @@ def strip_execs(pn, dstdir, strip_cmd, libdir, base_libdir, qa_already_stripped=
:param qa_already_stripped: Set to True if already-stripped' in ${INSANE_SKIP}
This is for proper logging and messages only.
"""
import stat, errno, oe.path, oe.utils
import stat, errno, oe.path, oe.utils, mmap
os.chdir(dstdir)
# Detect .ko module by searching for "vermagic=" string
def is_kernel_module(path):
with open(path) as f:
return mmap.mmap(f.fileno(), 0, prot=mmap.PROT_READ).find(b"vermagic=") >= 0
# Return type (bits):
# 0 - not elf
@@ -69,7 +72,8 @@ def strip_execs(pn, dstdir, strip_cmd, libdir, base_libdir, qa_already_stripped=
# 16 - kernel module
def is_elf(path):
exec_type = 0
ret, result = oe.utils.getstatusoutput("file \"%s\"" % path.replace("\"", "\\\""))
ret, result = oe.utils.getstatusoutput(
"file \"%s\"" % path.replace("\"", "\\\""))
if ret:
bb.error("split_and_strip_files: 'file %s' failed" % path)
@@ -83,14 +87,15 @@ def strip_execs(pn, dstdir, strip_cmd, libdir, base_libdir, qa_already_stripped=
exec_type |= 4
if "shared" in result:
exec_type |= 8
if "relocatable" in result and is_kernel_module(path):
exec_type |= 16
return exec_type
elffiles = {}
inodes = {}
libdir = os.path.abspath(dstdir + os.sep + libdir)
base_libdir = os.path.abspath(dstdir + os.sep + base_libdir)
exec_mask = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
#
# First lets figure out all of the files we may have to process
#
@@ -110,8 +115,9 @@ def strip_execs(pn, dstdir, strip_cmd, libdir, base_libdir, qa_already_stripped=
if not s:
continue
# Check its an excutable
if (s[stat.ST_MODE] & stat.S_IXUSR) or (s[stat.ST_MODE] & stat.S_IXGRP) or (s[stat.ST_MODE] & stat.S_IXOTH) \
or ((file.startswith(libdir) or file.startswith(base_libdir)) and ".so" in f):
if s[stat.ST_MODE] & exec_mask \
or ((file.startswith(libdir) or file.startswith(base_libdir)) and ".so" in f) \
or file.endswith('.ko'):
# If it's a symlink, and points to an ELF file, we capture the readlink target
if os.path.islink(file):
continue
@@ -131,8 +137,8 @@ def strip_execs(pn, dstdir, strip_cmd, libdir, base_libdir, qa_already_stripped=
os.unlink(file)
os.link(inodes[s.st_ino], file)
else:
# break hardlinks so that we do not strip the original.
inodes[s.st_ino] = file
# break hardlink
bb.utils.copyfile(file, file)
elffiles[file] = elf_file
@@ -142,7 +148,6 @@ def strip_execs(pn, dstdir, strip_cmd, libdir, base_libdir, qa_already_stripped=
sfiles = []
for file in elffiles:
elf_file = int(elffiles[file])
#bb.note("Strip %s" % file)
sfiles.append((file, elf_file, strip_cmd))
oe.utils.multiprocess_exec(sfiles, runstrip)