Date: Sat, 28 Apr 2018 12:40:20 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 227552] w, uptime i386 cordeump Message-ID: <bug-227552-227-MlrDgNlyjD@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-227552-227@https.bugs.freebsd.org/bugzilla/> References: <bug-227552-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D227552 --- Comment #11 from Dimitry Andric <dim@FreeBSD.org> --- I'm now not so sure anymore about the TLS section being a problem. On a stable/11 i386 box with r332318 (as of 2018-04-09), I do *not* see crashes = in w or uptime, even though the TLS section appears to be 0x50 bytes: $ ldd /usr/bin/uptime /usr/bin/uptime: libkvm.so.7 =3D> /lib/libkvm.so.7 (0x28070000) libsbuf.so.6 =3D> /lib/libsbuf.so.6 (0x2807d000) libxo.so.0 =3D> /lib/libxo.so.0 (0x28080000) libutil.so.9 =3D> /lib/libutil.so.9 (0x28099000) libc.so.7 =3D> /lib/libc.so.7 (0x280ab000) libelf.so.2 =3D> /lib/libelf.so.2 (0x2820a000) $ uptime 2:36PM up 21 mins, 1 user, load averages: 0.32, 0.26, 0.23 $ readelf -l /lib/libxo.so.0 | grep 'Type\|TLS' Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align TLS 0x017160 0x00018764 0x00018764 0x00000 0x00050 R 0x8 $ readelf -l /usr/obj/usr/src/lib/libxo/libxo.so.0.full | grep 'Type\|TLS' Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align TLS 0x017160 0x00018160 0x00018160 0x00000 0x00658 R 0x8 $ readelf -l /usr/obj/usr/src/lib/libxo/libxo.so.0 | grep 'Type\|TLS' Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align TLS 0x017160 0x00018160 0x00018160 0x00000 0x00654 R 0x8 So, libxo.so.0.full, the actual output of the link stage, has a TLS MemSize= of 0x658 bytes, libxo.so.0, which is produced by: objcopy --strip-debug --add-gnu-debuglink=3Dlibxo.so.0.debug libxo.so.0.fu= ll libxo.so.0 has a TLS MemSize of 0x654 bytes, and the final version installed by installworld, and stripped during that time, has a TLS MemSize of 0x50 byte= s. However, at this revision, r332318, it does not crash. --=20 You are receiving this mail because: You are the assignee for the bug.=
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