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linux/arch/s390/kernel
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Ilya Leoshkevich f3b7e73b2c 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: f19fbd5ed6 ("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>
2022-01-24 09:10:37 +01:00
..
syscalls mm/mempolicy: wire up syscall set_mempolicy_home_node 2022-01-15 16:30:30 +02:00
vdso32 s390/vdso: remove -nostdlib compiler flag 2021-11-16 12:29:19 +01:00
vdso64 s390/vdso: filter out -mstack-guard and -mstack-size 2021-11-16 12:29:19 +01:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
alternative.c s390: introduce text_poke_sync() 2021-10-11 20:55:58 +02:00
asm-offsets.c s390: support command lines longer than 896 bytes 2021-10-26 15:21:31 +02:00
audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
audit.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
base.S s390: remove unused s390_base_ext_handler 2020-11-09 11:20:58 +01:00
cache.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_audit.c audit: add support for the openat2 syscall 2021-10-01 16:52:48 -04:00
compat_linux.c s390: use generic UID16 implementation 2019-01-18 09:33:18 +01:00
compat_linux.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_ptrace.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
compat_signal.c s390/signal: switch to using vdso for sigreturn and syscall restart 2021-07-08 22:09:47 +02:00
cpcmd.c s390/cpcmd: use physical address for command and response 2021-10-26 15:21:28 +02:00
crash_dump.c s390/crash_dump: fix virtual vs physical address handling 2021-12-20 10:21:55 +01:00
debug.c s390/sclp: add tracing of SCLP interactions 2021-08-25 11:03:35 +02:00
diag.c s390: rename dma section to amode31 2021-08-05 14:10:53 +02:00
dis.c s390/disassembler: update opcode table 2021-12-16 19:58:07 +01:00
dumpstack.c exit: Add and use make_task_dead. 2021-12-13 12:04:45 -06:00
early_printk.c s390/sclp: remove unused sclp_early_printk_forced 2020-09-21 08:08:44 +02:00
early.c s390: support command lines longer than 896 bytes 2021-10-26 15:21:31 +02:00
ebcdic.c s390: ebcdic: convert comments to UTF-8 2018-08-23 18:48:43 -07:00
entry.h s390/boot: allocate amode31 section in decompressor 2021-10-04 09:49:37 +02:00
entry.S s390: add support for BEAR enhancement facility 2021-10-26 15:21:29 +02:00
fpu.c s390: convert to generic entry 2021-01-19 12:29:26 +01:00
ftrace.c s390/ftrace: remove preempt_disable()/preempt_enable() pair 2021-12-10 16:12:34 +01:00
ftrace.h s390/ftrace: implement hotpatching 2021-08-03 14:31:40 +02:00
guarded_storage.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
head64.S s390/boot: initialize control registers in decompressor 2021-10-04 09:49:37 +02:00
idle.c s390/time,idle: get rid of unsigned long long 2021-03-08 10:46:27 +01:00
ima_arch.c s390/kexec_file: Disable kexec_load when IPLed secure 2019-04-29 10:44:03 +02:00
ipl_vmparm.c s390/cio: remove unused include linux/spinlock.h from cio.h 2021-07-27 09:39:13 +02:00
ipl.c s390/kexec: fix return code handling 2021-11-18 17:25:35 +01:00
irq.c s390/entry: fix duplicate tracking of irq nesting level 2021-12-12 18:52:26 +01:00
jump_label.c s390/jump_label: add __init_or_module annotation 2021-10-11 20:55:58 +02:00
kdebugfs.c s390: no need to check return value of debugfs_create functions 2019-01-28 15:58:55 +01:00
kexec_elf.c kexec: Fix file verification on S390 2019-09-10 13:27:51 +01:00
kexec_image.c kexec_file: split KEXEC_VERIFY_SIG into KEXEC_SIG and KEXEC_SIG_FORCE 2019-08-19 21:54:15 -07:00
kprobes_insn_page.S s390/kprobes: move insn_page to text segment 2020-10-09 23:45:30 +02:00
kprobes.c s390 updates for the 5.16 merge window 2021-11-06 14:48:06 -07:00
lgr.c s390: convert to msecs_to_jiffies() 2020-06-29 16:31:46 +02:00
machine_kexec_file.c s390/kexec: handle R_390_PLT32DBL rela in arch_kexec_apply_relocations_add() 2021-12-10 16:12:34 +01:00
machine_kexec_reloc.c s390/kaslr: add support for R_390_JMP_SLOT relocation type 2020-05-20 10:13:27 +02:00
machine_kexec.c s390/nmi: add missing __pa/__va address conversion of extended save area 2021-12-06 14:42:26 +01:00
Makefile arch: Make ARCH_STACKWALK independent of STACKTRACE 2021-12-10 14:06:03 +00:00
mcount.S s390/ftrace: add HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALL support 2021-10-19 15:39:53 +02:00
module.c s390/module: fix loading modules with a lot of relocations 2022-01-24 09:10:37 +01:00
nmi.c s390/nmi: handle vector validity failures for KVM guests 2022-01-23 10:20:03 +01:00
nospec-branch.c s390: introduce nospec_uses_trampoline() 2021-10-26 15:21:29 +02:00
nospec-sysfs.c s390: introduce nospec_uses_trampoline() 2021-10-26 15:21:29 +02:00
numa.c s390/numa: move code to arch/s390/kernel 2020-08-11 18:16:55 +02:00
os_info.c s390/dump: introduce boot data 'oldmem_data' 2021-07-27 09:39:16 +02:00
perf_cpum_cf_common.c s390/cpumf: Support for CPU Measurement Facility CSVN 7 2022-01-17 14:13:08 +01:00
perf_cpum_cf_events.c s390/cpumf: Support for CPU Measurement Facility CSVN 7 2022-01-17 14:13:08 +01:00
perf_cpum_cf.c s390/cpumf: cpum_cf PMU displays invalid value after hotplug remove 2021-11-08 14:17:49 +01:00
perf_cpum_sf.c s390/cpumf: Support for CPU Measurement Sampling Facility LS bit 2022-01-17 14:13:08 +01:00
perf_event.c s390: Get rid of oprofile leftovers 2021-04-22 13:32:39 +01:00
perf_regs.c perf/arch: Remove perf_sample_data::regs_user_copy 2020-11-09 18:12:34 +01:00
process.c s390/exit: remove dead reference to do_exit from copy_thread 2021-12-16 19:58:06 +01:00
processor.c s390: replace deprecated CPU-hotplug functions 2021-08-05 14:10:53 +02:00
ptrace.c s390/traps: add struct to access transactional diagnostic block 2021-06-07 17:06:58 +02:00
reipl.S s390: add missing ENDPROC statements to assembler functions 2019-05-02 13:54:11 +02:00
relocate_kernel.S s390: add missing ENDPROC statements to assembler functions 2019-05-02 13:54:11 +02:00
runtime_instr.c s390/runtime_instrumentation: fix storage key handling 2020-08-17 13:17:10 +02:00
setup.c s390/nmi: disable interrupts on extended save area update 2021-12-16 19:58:07 +01:00
signal.c s390: remove do_signal() prototype and do_notify_resume() function 2021-08-25 11:03:34 +02:00
smp.c s390/crash_dump: fix virtual vs physical address handling 2021-12-20 10:21:55 +01:00
stacktrace.c kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
sthyi.c s390/sthyi: use register pair instead of register asm 2021-06-18 16:41:22 +02:00
syscall.c s390: add support for BEAR enhancement facility 2021-10-26 15:21:29 +02:00
sysinfo.c s390/sysinfo: get rid of register asm 2021-06-18 16:41:23 +02:00
text_amode31.S s390/diag: make restart_part2 a local label 2021-08-25 11:03:34 +02:00
time.c s390/vdso: fix initializing and updating of vdso_data 2021-03-25 21:57:26 +01:00
topology.c s390/topology: fix topology information when calling cpu hotplug notifiers 2021-09-07 13:38:41 +02:00
trace.c s390/ftrace: fix potential crashes when switching tracers 2020-04-22 16:20:55 +02:00
traps.c signal: Replace force_fatal_sig with force_exit_sig when in doubt 2021-11-19 09:15:58 -06:00
unwind_bc.c s390/unwind: stop gracefully at user mode pt_regs in irq stack 2019-12-18 23:29:26 +01:00
uprobes.c s390: Fix fall-through warnings for Clang 2021-07-13 14:43:09 -05:00
uv.c s390/uv: fix memblock virtual vs physical address confusion 2021-12-16 19:58:07 +01:00
vdso.c s390/vdso: add minimal compat vdso 2021-07-08 15:37:28 +02:00
vmlinux.lds.S s390/boot: allocate amode31 section in decompressor 2021-10-04 09:49:37 +02:00
vtime.c s390/vtime: fix increased steal time accounting 2021-03-15 19:09:25 +01:00