staging: Strip files in sysroot
Add functionality to strip binaries/libraries going into the sysroot. Whilst this does fractionally slow down the build, it also significantly reduces the size of the sstate cache files. (From OE-Core rev: 30f3774f4cd5bbb8c1e6884aeff5af91ab053fc1) Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -57,6 +57,101 @@ sysroot_stage_all() {
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sysroot_stage_dirs ${D} ${SYSROOT_DESTDIR}
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}
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python sysroot_strip () {
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import stat, errno
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dvar = d.getVar('SYSROOT_DESTDIR', True)
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pn = d.getVar('PN', True)
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os.chdir(dvar)
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# Return type (bits):
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# 0 - not elf
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# 1 - ELF
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# 2 - stripped
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# 4 - executable
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# 8 - shared library
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# 16 - kernel module
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def isELF(path):
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type = 0
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ret, result = oe.utils.getstatusoutput("file \"%s\"" % path.replace("\"", "\\\""))
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if ret:
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bb.error("split_and_strip_files: 'file %s' failed" % path)
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return type
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# Not stripped
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if "ELF" in result:
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type |= 1
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if "not stripped" not in result:
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type |= 2
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if "executable" in result:
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type |= 4
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if "shared" in result:
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type |= 8
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return type
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elffiles = {}
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inodes = {}
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libdir = os.path.abspath(dvar + os.sep + d.getVar("libdir", True))
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baselibdir = os.path.abspath(dvar + os.sep + d.getVar("base_libdir", True))
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if (d.getVar('INHIBIT_SYSROOT_STRIP', True) != '1'):
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#
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# First lets figure out all of the files we may have to process
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#
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for root, dirs, files in os.walk(dvar):
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for f in files:
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file = os.path.join(root, f)
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try:
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ltarget = oe.path.realpath(file, dvar, False)
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s = os.lstat(ltarget)
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except OSError as e:
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(err, strerror) = e.args
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if err != errno.ENOENT:
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raise
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# Skip broken symlinks
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continue
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if not s:
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continue
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# Check its an excutable
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if (s[stat.ST_MODE] & stat.S_IXUSR) or (s[stat.ST_MODE] & stat.S_IXGRP) or (s[stat.ST_MODE] & stat.S_IXOTH) \
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or ((file.startswith(libdir) or file.startswith(baselibdir)) and ".so" in f):
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# If it's a symlink, and points to an ELF file, we capture the readlink target
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if os.path.islink(file):
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continue
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# It's a file (or hardlink), not a link
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# ...but is it ELF, and is it already stripped?
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elf_file = isELF(file)
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if elf_file & 1:
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if elf_file & 2:
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bb.warn("File '%s' from %s was already stripped, this will prevent future debugging!" % (file[len(dvar):], pn))
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continue
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if s.st_ino in inodes:
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os.unlink(file)
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os.link(inodes[s.st_ino], file)
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else:
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inodes[s.st_ino] = file
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# break hardlink
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bb.utils.copyfile(file, file)
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elffiles[file] = elf_file
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#
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# Now strip them (in parallel)
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#
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strip = d.getVar("STRIP", True)
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sfiles = []
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for file in elffiles:
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elf_file = int(elffiles[file])
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#bb.note("Strip %s" % file)
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sfiles.append((file, elf_file, strip))
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oe.utils.multiprocess_exec(sfiles, oe.package.runstrip)
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}
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do_populate_sysroot[dirs] = "${SYSROOT_DESTDIR}"
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do_populate_sysroot[umask] = "022"
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@ -91,6 +186,7 @@ def sysroot_checkhashes(covered, tasknames, fnids, fns, d, invalidtasks = None):
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python do_populate_sysroot () {
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bb.build.exec_func("sysroot_stage_all", d)
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bb.build.exec_func("sysroot_strip", d)
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for f in (d.getVar('SYSROOT_PREPROCESS_FUNCS', True) or '').split():
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bb.build.exec_func(f, d)
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pn = d.getVar("PN", True)
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@ -17,6 +17,8 @@ python __anonymous () {
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# Set this to zero if you don't want ldconfig in the output package
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USE_LDCONFIG ?= "1"
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INHIBIT_SYSROOT_STRIP = "1"
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PACKAGES = "${PN}-dbg catchsegv sln nscd ldd tzcode ${PN}-utils glibc-thread-db ${PN}-pic libcidn libmemusage libsegfault ${PN}-pcprofile libsotruss ${PN} glibc-extra-nss ${PN}-dev ${PN}-staticdev ${PN}-doc"
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# The ld.so in this glibc supports the GNU_HASH
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