kernel_optimize_test/arch/s390
Gerald Schaefer 4c1cbcbd6c s390/kaslr: add support for R_390_JMP_SLOT relocation type
With certain kernel configurations, the R_390_JMP_SLOT relocation type
might be generated, which is not expected by the KASLR relocation code,
and the kernel stops with the message "Unknown relocation type".

This was found with a zfcpdump kernel config, where CONFIG_MODULES=n
and CONFIG_VFIO=n. In that case, symbol_get() is used on undefined
__weak symbols in virt/kvm/vfio.c, which results in the generation
of R_390_JMP_SLOT relocation types.

Fix this by handling R_390_JMP_SLOT similar to R_390_GLOB_DAT.

Fixes: 805bc0bc23 ("s390/kernel: build a relocatable kernel")
Cc: <stable@vger.kernel.org> # v5.2+
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2020-05-20 10:13:27 +02:00
..
appldata
boot s390/protvirt: fix compilation issue 2020-04-25 10:17:24 +02:00
configs
crypto
hypfs
include s390/pci: Fix s390_mmio_read/write with MIO 2020-05-14 23:21:37 +02:00
kernel s390/kaslr: add support for R_390_JMP_SLOT relocation type 2020-05-20 10:13:27 +02:00
kvm KVM: s390: Fix for running nested uner z/VM 2020-05-06 08:09:17 -04:00
lib s390/mm: fix page table upgrade vs 2ndary address mode accesses 2020-04-21 15:16:43 +02:00
mm s390/mm: fix set_huge_pte_at() for empty ptes 2020-05-20 10:13:27 +02:00
net
numa
oprofile
pci s390/pci: Fix s390_mmio_read/write with MIO 2020-05-14 23:21:37 +02:00
purgatory
scripts
tools
Kbuild
Kconfig
Kconfig.debug
Makefile