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5b06fd3bb9cdce4f3e731c48eb5b74c4acc47997
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Peter Zijlstra 5b06fd3bb9 static_call: Handle tail-calls 
GCC can turn our static_call(name)(args...) into a tail call, in which
case we get a JMP.d32 into the trampoline (which then does a further
tail-call).

Teach objtool to recognise and mark these in .static_call_sites and
adjust the code patching to deal with this.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20200818135805.101186767@infradead.org
2020-09-01 09:58:06 +02:00
..
bpf
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
cgroup
Merge tag 'for-5.9/block-20200802' of git://git.kernel.dk/linux-block
2020-08-03 11:57:03 -07:00
configs
…
debug
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
dma
dma-pool: Fix an uninitialized variable bug in atomic_pool_expand()
2020-08-27 09:22:56 +02:00
entry
core/entry: Respect syscall number rewrites
2020-08-21 16:17:29 +02:00
events
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
gcov
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
irq
Merge tag 'x86-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-30 12:01:23 -07:00
kcsan
Merge branch 'kcsan' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/core
2020-08-01 09:26:27 +02:00
livepatch
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locking
lockdep,trace: Expose tracepoints
2020-08-26 12:41:56 +02:00
power
notifier: Fix broken error handling pattern
2020-09-01 09:58:03 +02:00
printk
Merge tag 'printk-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux
2020-08-04 22:22:25 -07:00
rcu
rcu: kasan: record and print call_rcu() call stack
2020-08-07 11:33:28 -07:00
sched
Merge tag 'locking-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-30 11:43:50 -07:00
time
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
trace
module: Fix up module_notifier return values
2020-09-01 09:58:03 +02:00
.gitignore
…
acct.c
…
async.c
treewide: Remove uninitialized_var() usage
2020-07-16 12:35:15 -07:00
audit_fsnotify.c
fsnotify: create method handle_inode_event() in fsnotify_operations
2020-07-27 23:25:50 +02:00
audit_tree.c
Merge tag 'fsnotify_for_v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2020-08-06 19:29:51 -07:00
audit_watch.c
fsnotify: create method handle_inode_event() in fsnotify_operations
2020-07-27 23:25:50 +02:00
audit.c
Merge tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2020-08-04 14:20:26 -07:00
audit.h
revert: 1320a4052e ("audit: trigger accompanying records when no rules present")
2020-07-29 10:00:36 -04:00
auditfilter.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
auditsc.c
Merge tag 'audit-pr-20200803' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2020-08-04 14:20:26 -07:00
backtracetest.c
treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD()
2020-07-30 11:15:58 -07:00
bounds.c
…
capability.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
compat.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
configs.c
…
context_tracking.c
…
cpu_pm.c
notifier: Fix broken error handling pattern
2020-09-01 09:58:03 +02:00
cpu.c
…
crash_core.c
kdump: append kernel build-id string to VMCOREINFO
2020-08-12 10:58:01 -07:00
crash_dump.c
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cred.c
…
delayacct.c
…
dma.c
…
elfcore.c
…
exec_domain.c
…
exit.c
kernel: add a kernel_wait helper
2020-08-12 10:57:59 -07:00
extable.c
…
fail_function.c
…
fork.c
Merge tag 'locking-urgent-2020-08-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-10 19:07:44 -07:00
freezer.c
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futex.c
futex: Convert to use the preferred 'fallthrough' macro
2020-08-13 21:02:12 +02:00
gen_kheaders.sh
…
groups.c
…
hung_task.c
…
iomem.c
…
irq_work.c
…
jump_label.c
jump_label,module: Fix module lifetime for __jump_label_mod_text_reserved()
2020-09-01 09:58:04 +02:00
kallsyms.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
…
kcov.c
kcov: make some symbols static
2020-08-12 10:58:02 -07:00
kexec_core.c
…
kexec_elf.c
…
kexec_file.c
Merge tag 'x86-urgent-2020-08-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-08-15 10:38:03 -07:00
kexec_internal.h
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kexec.c
…
kheaders.c
…
kmod.c
kmod: remove redundant "be an" in the comment
2020-08-12 10:58:01 -07:00
kprobes.c
static_call: Avoid kprobes on inline static_call()s
2020-09-01 09:58:04 +02:00
ksysfs.c
…
kthread.c
uaccess: add force_uaccess_{begin,end} helpers
2020-08-12 10:57:59 -07:00
latencytop.c
…
Makefile
static_call: Add inline static call infrastructure
2020-09-01 09:58:04 +02:00
module_signature.c
…
module_signing.c
…
module-internal.h
…
module.c
static_call: Add inline static call infrastructure
2020-09-01 09:58:04 +02:00
notifier.c
notifier: Fix broken error handling pattern
2020-09-01 09:58:03 +02:00
nsproxy.c
nsproxy: support CLONE_NEWTIME with setns()
2020-07-08 11:14:22 +02:00
padata.c
padata: remove padata_parallel_queue
2020-07-23 17:34:18 +10:00
panic.c
panic: make print_oops_end_marker() static
2020-08-12 10:58:02 -07:00
params.c
…
pid_namespace.c
pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid
2020-07-19 20:14:42 +02:00
pid.c
Merge tag 'cap-checkpoint-restore-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
2020-08-04 15:02:07 -07:00
profile.c
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ptrace.c
…
range.c
…
reboot.c
arch: remove unicore32 port
2020-07-01 12:09:13 +03:00
regset.c
regset: kill ->get()
2020-07-27 14:31:12 -04:00
relay.c
kernel/relay.c: fix memleak on destroy relay channel
2020-08-21 09:52:53 -07:00
resource.c
…
rseq.c
…
scs.c
mm: memcontrol: account kernel stack per node
2020-08-07 11:33:25 -07:00
seccomp.c
seccomp: Introduce addfd ioctl to seccomp user notifier
2020-07-14 16:29:42 -07:00
signal.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
smp.c
smp: Fix a potential usage of stale nr_cpus
2020-07-22 10:22:04 +02:00
smpboot.c
…
smpboot.h
…
softirq.c
Merge tag 'tasklets-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2020-08-04 13:40:35 -07:00
stackleak.c
gcc-plugins/stackleak: Use asm instrumentation to avoid useless register saving
2020-06-24 07:48:28 -07:00
stacktrace.c
uaccess: add force_uaccess_{begin,end} helpers
2020-08-12 10:57:59 -07:00
static_call.c
static_call: Handle tail-calls
2020-09-01 09:58:06 +02:00
stop_machine.c
…
sys_ni.c
all arch: remove system call sys_sysctl
2020-08-14 19:56:56 -07:00
sys.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
sysctl-test.c
…
sysctl.c
mm: use unsigned types for fragmentation score
2020-08-12 10:57:56 -07:00
task_work.c
task_work: only grab task signal lock when needed
2020-08-13 09:01:38 -06:00
taskstats.c
…
test_kprobes.c
…
torture.c
torture: Dump ftrace at shutdown only if requested
2020-06-29 12:01:45 -07:00
tracepoint.c
module: Fix up module_notifier return values
2020-09-01 09:58:03 +02:00
tsacct.c
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ucount.c
…
uid16.c
…
uid16.h
…
umh.c
kernel: add a kernel_wait helper
2020-08-12 10:57:59 -07:00
up.c
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user_namespace.c
…
user-return-notifier.c
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user.c
…
usermode_driver.c
umd: Stop using split_argv
2020-07-07 11:58:59 -05:00
utsname_sysctl.c
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utsname.c
…
watch_queue.c
watch_queue: Limit the number of watches a user can hold
2020-08-17 09:39:18 -07:00
watchdog_hld.c
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watchdog.c
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workqueue_internal.h
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workqueue.c
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
2020-06-17 10:57:41 -07:00