Revision 5d1204582e7bc0682fb019e5666bd62cc27260b4 authored by Linus Torvalds on 19 May 2012, 22:28:22 UTC, committed by Linus Torvalds on 19 May 2012, 22:28:22 UTC
Pull x86 linker bug workarounds from Peter Anvin.

GNU ld-2.22.52.0.[12] (*) has an unfortunate bug where it incorrectly
turns certain relocation entries absolute.  Section-relative symbols
that are part of otherwise empty sections are silently changed them to
absolute.  We rely on section-relative symbols staying section-relative,
and actually have several sections in the linker script solely for this
purpose.

See for example

   http://sourceware.org/bugzilla/show_bug.cgi?id=14052

We could just black-list the buggy linker, but it appears that it got
shipped in at least F17, and possibly other distros too, so it's sadly
not some rare unusual case.

This backports the workaround from the x86/trampoline branch, and as
Peter says: "This is not a minimal fix, not at all, but it is a tested
code base."

* 'x86/ld-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, relocs: When printing an error, say relative or absolute
  x86, relocs: Workaround for binutils 2.22.52.0.1 section bug
  x86, realmode: 16-bit real-mode code support for relocs tool

(*) That's a manly release numbering system. Stupid, sure. But manly.
2 parent s 14e931a + 24ab82b
History
File Mode Size
9p
adfs
affs
afs
autofs4
befs
bfs
btrfs
cachefiles
ceph
cifs
coda
configfs
cramfs
debugfs
devpts
dlm
ecryptfs
efs
exofs
exportfs
ext2
ext3
ext4
fat
freevxfs
fscache
fuse
gfs2
hfs
hfsplus
hostfs
hpfs
hppfs
hugetlbfs
isofs
jbd
jbd2
jffs2
jfs
lockd
logfs
minix
ncpfs
nfs
nfs_common
nfsd
nilfs2
nls
notify
ntfs
ocfs2
omfs
openpromfs
proc
pstore
qnx4
qnx6
quota
ramfs
reiserfs
romfs
squashfs
sysfs
sysv
ubifs
udf
ufs
xfs
Kconfig -rw-r--r-- 6.2 KB
Kconfig.binfmt -rw-r--r-- 6.4 KB
Makefile -rw-r--r-- 4.0 KB
aio.c -rw-r--r-- 47.6 KB
anon_inodes.c -rw-r--r-- 6.4 KB
attr.c -rw-r--r-- 6.7 KB
bad_inode.c -rw-r--r-- 7.8 KB
binfmt_aout.c -rw-r--r-- 11.7 KB
binfmt_elf.c -rw-r--r-- 54.6 KB
binfmt_elf_fdpic.c -rw-r--r-- 48.3 KB
binfmt_em86.c -rw-r--r-- 2.8 KB
binfmt_flat.c -rw-r--r-- 26.7 KB
binfmt_misc.c -rw-r--r-- 15.1 KB
binfmt_script.c -rw-r--r-- 2.8 KB
binfmt_som.c -rw-r--r-- 7.1 KB
bio-integrity.c -rw-r--r-- 21.2 KB
bio.c -rw-r--r-- 39.5 KB
block_dev.c -rw-r--r-- 41.7 KB
buffer.c -rw-r--r-- 85.5 KB
char_dev.c -rw-r--r-- 13.8 KB
compat.c -rw-r--r-- 44.5 KB
compat_binfmt_elf.c -rw-r--r-- 3.5 KB
compat_ioctl.c -rw-r--r-- 45.2 KB
dcache.c -rw-r--r-- 77.8 KB
dcookies.c -rw-r--r-- 6.8 KB
direct-io.c -rw-r--r-- 38.5 KB
drop_caches.c -rw-r--r-- 1.5 KB
eventfd.c -rw-r--r-- 11.0 KB
eventpoll.c -rw-r--r-- 51.5 KB
exec.c -rw-r--r-- 52.5 KB
fcntl.c -rw-r--r-- 18.7 KB
fhandle.c -rw-r--r-- 6.5 KB
fifo.c -rw-r--r-- 3.2 KB
file.c -rw-r--r-- 11.8 KB
file_table.c -rw-r--r-- 12.6 KB
filesystems.c -rw-r--r-- 6.3 KB
fs-writeback.c -rw-r--r-- 36.6 KB
fs_struct.c -rw-r--r-- 3.9 KB
generic_acl.c -rw-r--r-- 3.8 KB
inode.c -rw-r--r-- 44.6 KB
internal.h -rw-r--r-- 2.9 KB
ioctl.c -rw-r--r-- 15.7 KB
ioprio.c -rw-r--r-- 4.8 KB
libfs.c -rw-r--r-- 25.8 KB
locks.c -rw-r--r-- 58.9 KB
mbcache.c -rw-r--r-- 16.4 KB
mount.h -rw-r--r-- 2.0 KB
mpage.c -rw-r--r-- 20.0 KB
namei.c -rw-r--r-- 84.4 KB
namespace.c -rw-r--r-- 63.2 KB
no-block.c -rw-r--r-- 688 bytes
open.c -rw-r--r-- 26.3 KB
pipe.c -rw-r--r-- 28.9 KB
pnode.c -rw-r--r-- 8.8 KB
pnode.h -rw-r--r-- 1.4 KB
posix_acl.c -rw-r--r-- 9.2 KB
proc_namespace.c -rw-r--r-- 7.5 KB
read_write.c -rw-r--r-- 22.4 KB
read_write.h -rw-r--r-- 542 bytes
readdir.c -rw-r--r-- 6.9 KB
select.c -rw-r--r-- 24.2 KB
seq_file.c -rw-r--r-- 19.4 KB
signalfd.c -rw-r--r-- 8.0 KB
splice.c -rw-r--r-- 46.3 KB
stack.c -rw-r--r-- 2.5 KB
stat.c -rw-r--r-- 10.6 KB
statfs.c -rw-r--r-- 5.2 KB
super.c -rw-r--r-- 29.9 KB
sync.c -rw-r--r-- 9.9 KB
timerfd.c -rw-r--r-- 8.6 KB
utimes.c -rw-r--r-- 5.7 KB
xattr.c -rw-r--r-- 17.7 KB
xattr_acl.c -rw-r--r-- 2.3 KB

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