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| author | Ilya Leoshkevich <iii@linux.ibm.com> | 2022-01-19 21:26:37 +0300 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2022-01-24 11:10:37 +0300 |
| commit | f3b7e73b2c6619884351a3a0a7468642f852b8a2 (patch) | |
| tree | 3934d5be3e4a58c1706d9985b2ca9fb66fe2524f /arch/s390/lib | |
| parent | 3d787b392d169d4a2e3aee6ac6dfd6ec39722cf2 (diff) | |
| download | linux-f3b7e73b2c6619884351a3a0a7468642f852b8a2.tar.xz | |
s390/module: fix loading modules with a lot of relocations
If the size of the PLT entries generated by apply_rela() exceeds
64KiB, the first ones can no longer reach __jump_r1 with brc. Fix by
using brcl. An alternative solution is to add a __jump_r1 copy after
every 64KiB, however, the space savings are quite small and do not
justify the additional complexity.
Fixes: f19fbd5ed642 ("s390: introduce execute-trampolines for branches")
Cc: stable@vger.kernel.org
Reported-by: Andrea Righi <andrea.righi@canonical.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/lib')
0 files changed, 0 insertions, 0 deletions