forge/linux-uconsole
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity Actions
linux-uconsole/arch/arm64/include/asm
History
Linus Torvalds 606e9ad200 clone3-tls-v5.5-rc6 
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCXhhtDQAKCRCRxhvAZXjc
 orQ3AQD7H2ovZbPIpWbwOnRIExBF4O8gPDfFc/J/RweZx40v/AD/QwfFnq0TpmUc
 UfS4zzLxJ4K+L4RYWId5v8MFHGIu8QQ=
 =LmmJ
 -----END PGP SIGNATURE-----

Merge tag 'clone3-tls-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

Pull thread fixes from Christian Brauner:
 "This contains a series of patches to fix CLONE_SETTLS when used with
  clone3().

  The clone3() syscall passes the tls argument through struct clone_args
  instead of a register. This means, all architectures that do not
  implement copy_thread_tls() but still support CLONE_SETTLS via
  copy_thread() expecting the tls to be located in a register argument
  based on clone() are currently unfortunately broken. Their tls value
  will be garbage.

  The patch series fixes this on all architectures that currently define
  __ARCH_WANT_SYS_CLONE3. It also adds a compile-time check to ensure
  that any architecture that enables clone3() in the future is forced to
  also implement copy_thread_tls().

  My ultimate goal is to get rid of the copy_thread()/copy_thread_tls()
  split and just have copy_thread_tls() at some point in the not too
  distant future (Maybe even renaming copy_thread_tls() back to simply
  copy_thread() once the old function is ripped from all arches). This
  is dependent now on all arches supporting clone3().

  While all relevant arches do that now there are still four missing:
  ia64, m68k, sh and sparc. They have the system call reserved, but not
  implemented. Once they all implement clone3() we can get rid of
  ARCH_WANT_SYS_CLONE3 and HAVE_COPY_THREAD_TLS.

  This series also includes a minor fix for the arm64 uapi headers which
  caused __NR_clone3 to be missing from the exported user headers.

  Unfortunately the series came in a little late especially given that
  it touches a range of architectures. Due to the holidays not all arch
  maintainers responded in time probably due to their backlog. Will and
  Arnd have thankfully acked the arm specific changes.

  Given that the changes are straightforward and rather minimal combined
  with the fact the that clone3() with CLONE_SETTLS is broken I decided
  to send them post rc3 nonetheless"

* tag 'clone3-tls-v5.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  um: Implement copy_thread_tls
  clone3: ensure copy_thread_tls is implemented
  xtensa: Implement copy_thread_tls
  riscv: Implement copy_thread_tls
  parisc: Implement copy_thread_tls
  arm: Implement copy_thread_tls
  arm64: Implement copy_thread_tls
  arm64: Move __ARCH_WANT_SYS_CLONE3 definition to uapi headers
2020-01-11 15:33:48 -08:00
..
vdso timekeeping/vsyscall: Update VDSO data unconditionally 2019-11-04 23:02:53 +01:00
xen xen: fixes and cleanups for 5.4-rc2 2019-10-04 11:13:09 -07:00
acenv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi.h arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
alternative.h arm64: alternative: Apply alternatives early in boot process 2019-02-06 10:05:20 +00:00
arch_gicv3.h arm64: Lower priority mask for GIC_PRIO_IRQON 2019-08-01 14:59:48 +01:00
arch_timer.h Merge branch 'timers/vdso' into timers/core 2019-07-03 10:50:21 +02:00
arm-cci.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
arm_dsu_pmu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
asm-bug.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
asm-offsets.h
asm-prototypes.h arm64: asm-prototypes: Fix fat-fingered typo in comment 2019-01-10 11:11:46 +00:00
asm-uaccess.h arm64 updates for 5.5: 2019-11-25 15:39:19 -08:00
assembler.h Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core 2019-08-30 12:46:12 +01:00
atomic.h Merge branch 'for-next/atomics' into for-next/core 2019-08-30 12:55:39 +01:00
atomic_ll_sc.h arm64: atomics: Use K constraint when toolchain appears to support it 2019-08-30 11:18:40 +01:00
atomic_lse.h arm64: Mark functions using explicit register variables as '__always_inline' 2019-10-04 11:15:42 +01:00
barrier.h arm64: Relax ICC_PMR_EL1 accesses when ICC_CTLR_EL1.PMHE is clear 2019-10-15 12:26:09 +01:00
bitops.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
bitrev.h
boot.h treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h> 2019-05-14 19:52:52 -07:00
brk-imm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
bug.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
cache.h arm64: Fake the IminLine size on systems affected by Neoverse-N1 #1542419 2019-10-25 17:48:44 +01:00
cacheflush.h arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
checksum.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
clocksource.h
cmpxchg.h arm64: fix unreachable code issue with cmpxchg 2019-09-17 12:11:50 +01:00
compat.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
cpu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
cpu_ops.h arm64: smp: disable hotplug on trusted OS resident CPU 2019-08-15 11:12:03 +01:00
cpucaps.h Merge branch 'kvm-arm64/erratum-1319367' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into for-next/core 2019-10-28 16:22:49 +00:00
cpufeature.h arm64: cpufeature: introduce helper cpu_has_hw_af() 2019-10-18 11:11:19 +01:00
cpuidle.h
cputype.h arm64: apply ARM64_ERRATUM_845719 workaround for Brahma-B53 core 2019-11-01 10:47:37 +00:00
current.h
daifflags.h Merge branches 'for-next/elf-hwcap-docs', 'for-next/smccc-conduit-cleanup', 'for-next/zone-dma', 'for-next/relax-icc_pmr_el1-sync', 'for-next/double-page-fault', 'for-next/misc', 'for-next/kselftest-arm64-signal' and 'for-next/kaslr-diagnostics' into for-next/core 2019-11-08 17:46:11 +00:00
dcc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
debug-monitors.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
device.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
dmi.h
efi.h arm64: mm: Introduce VA_BITS_MIN 2019-08-09 11:17:16 +01:00
elf.h arm64: vdso: Fix population of AT_SYSINFO_EHDR for compat vdso 2019-07-22 10:33:42 +01:00
esr.h arm64: esr: Add ESR exception class encoding for trapped ERET 2019-08-05 11:06:34 +01:00
exception.h arm64: Remove asmlinkage from updated functions 2019-10-28 11:22:51 +00:00
exec.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
extable.h
fb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
fixmap.h firmware: arm_sdei: Add ACPI GHES registration helper 2019-02-11 11:07:49 +01:00
fpsimd.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
fpsimdmacros.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
ftrace.h arm64: implement ftrace with regs 2019-11-06 14:17:35 +00:00
futex.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
hardirq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
hugetlb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
hw_breakpoint.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
hwcap.h arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
hypervisor.h
image.h docs: arm64: convert docs to ReST and rename to .rst 2019-06-14 14:20:27 -06:00
insn.h arm64: insn: add encoder for MOV (register) 2019-11-06 14:17:33 +00:00
io.h arch: rely on asm-generic/io.h for default ioremap_* definitions 2019-11-11 21:18:19 +01:00
irq.h arm64: Use the new GENERIC_IRQ_MULTI_HANDLER 2018-08-03 12:14:09 +02:00
irq_work.h
irqflags.h arm64: Relax ICC_PMR_EL1 accesses when ICC_CTLR_EL1.PMHE is clear 2019-10-15 12:26:09 +01:00
jump_label.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
kasan.h arm64: mm: Introduce vabits_actual 2019-08-09 11:17:21 +01:00
Kbuild asm-generic: Make msi.h a mandatory include/asm header 2019-11-26 13:14:11 -06:00
kernel-pgtable.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
kexec.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
kgdb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
kprobes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
kvm_arm.h KVM: arm64: Don't set HCR_EL2.TVM when S2FWB is supported 2019-10-28 16:20:58 +00:00
kvm_asm.h KVM: arm64: Consume pending SError as early as possible 2019-07-05 13:03:29 +01:00
kvm_coproc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
kvm_emulate.h Merge remote-tracking branch 'kvmarm/misc-5.5' into kvmarm/next 2019-11-08 11:27:29 +00:00
kvm_host.h ARM: 2019-11-25 18:02:36 -08:00
kvm_hyp.h arm64: KVM: Kill hyp_alternate_select() 2019-09-09 18:16:32 +01:00
kvm_mmio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
kvm_mmu.h arm64: KVM: Invoke compute_layout() before alternatives are applied 2019-12-06 12:14:45 +00:00
kvm_ptrauth.h KVM: arm/arm64: Context-switch ptrauth registers 2019-04-24 15:30:40 +01:00
kvm_ras.h arm64: KVM/mm: Move SEA handling behind a single 'claim' interface 2019-02-07 23:10:45 +01:00
linkage.h
lse.h arm64: asm: Kill 'asm/atomic_arch.h' 2019-08-30 11:18:29 +01:00
memory.h Merge branches 'for-next/elf-hwcap-docs', 'for-next/smccc-conduit-cleanup', 'for-next/zone-dma', 'for-next/relax-icc_pmr_el1-sync', 'for-next/double-page-fault', 'for-next/misc', 'for-next/kselftest-arm64-signal' and 'for-next/kaslr-diagnostics' into for-next/core 2019-11-08 17:46:11 +00:00
mmu.h arm64: map FDT as RW for early_init_dt_scan() 2019-08-23 16:39:16 +01:00
mmu_context.h arm64: mm: Introduce 52-bit Kernel VAs 2019-08-09 11:17:26 +01:00
mmzone.h
module.h arm64: implement ftrace with regs 2019-11-06 14:17:35 +00:00
neon-intrinsics.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
neon.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
numa.h arm64: numa: separate out updates to percpu nodeid and NUMA node cpumap 2018-07-06 13:18:18 +01:00
page-def.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
page.h dma/direct: turn ARCH_ZONE_DMA_BITS into a variable 2019-11-01 09:41:18 +00:00
paravirt.h arm64: Retrieve stolen time as paravirtualized guest 2019-10-21 19:20:31 +01:00
pci.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
percpu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
perf_event.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
pgalloc.h mm: remove quicklist page table caches 2019-09-24 15:54:09 -07:00
pgtable-hwdef.h arm64: mm: Remove MAX_USER_VA_BITS definition 2019-11-06 11:19:25 +00:00
pgtable-prot.h arm64: Revert support for execute-only user mappings 2020-01-06 10:10:07 -08:00
pgtable-types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
pgtable.h arm64: Revert support for execute-only user mappings 2020-01-06 10:10:07 -08:00
pointer_auth.h arm64: mm: Remove vabits_user 2019-08-09 11:17:27 +01:00
preempt.h arm64: preempt: Provide our own implementation of asm/preempt.h 2018-12-07 12:35:53 +00:00
probes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
proc-fns.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
processor.h Merge branches 'for-next/elf-hwcap-docs', 'for-next/smccc-conduit-cleanup', 'for-next/zone-dma', 'for-next/relax-icc_pmr_el1-sync', 'for-next/double-page-fault', 'for-next/misc', 'for-next/kselftest-arm64-signal' and 'for-next/kaslr-diagnostics' into for-next/core 2019-11-08 17:46:11 +00:00
ptdump.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
ptrace.h arm64: Add support for function error injection 2019-08-07 13:53:09 +01:00
pvclock-abi.h KVM: arm64: Implement PV_TIME_FEATURES call 2019-10-21 19:20:27 +01:00
sdei.h arm64: Use the correct style for SPDX License Identifier 2019-04-16 16:28:01 +01:00
seccomp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sections.h arm64: insn: consistently handle exit text 2019-12-04 11:32:20 +00:00
shmparam.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
signal32.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
simd.h arm64 updates for 5.3: 2019-07-08 09:54:55 -07:00
smp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
smp_plat.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
sparsemem.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
spinlock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
spinlock_types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
stack_pointer.h
stackprotector.h arm64: enable per-task stack canaries 2018-12-12 18:45:31 +00:00
stacktrace.h arm64: stacktrace: Better handle corrupted stacks 2019-07-22 11:44:15 +01:00
stage2_pgtable.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
stat.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
string.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
suspend.h
sync_bitops.h arm64, locking/atomics: Use instrumented atomics 2018-11-01 11:01:40 +01:00
syscall.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
syscall_wrapper.h arm64: simplify syscall wrapper ifdeffery 2019-10-14 10:55:00 +01:00
sysreg.h arm64: sysreg: fix incorrect definition of SYS_PAR_EL1_F 2019-10-16 09:52:28 -07:00
system_misc.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
thread_info.h Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', 'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core 2019-08-30 12:46:12 +01:00
timex.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
tlb.h mm: treewide: clarify pgtable_page_{ctor,dtor}() naming 2019-09-26 10:10:44 -07:00
tlbflush.h arm64: tlb: Ensure we execute an ISB following walk cache invalidation 2019-08-27 17:38:26 +01:00
topology.h cpu-topology: Move cpu topology code to common code. 2019-07-22 09:36:06 -07:00
traps.h arm64: remove __exception annotations 2019-10-28 11:22:38 +00:00
uaccess.h arm64 updates for 5.5: 2019-12-06 14:18:01 -08:00
unistd.h arm64: Move __ARCH_WANT_SYS_CLONE3 definition to uapi headers 2020-01-07 13:30:49 +01:00
unistd32.h clone3-v5.3 2019-07-11 10:09:44 -07:00
uprobes.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vdso.h arm64: remove pointless __KERNEL__ guards 2019-08-05 11:06:33 +01:00
virt.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
vmap_stack.h arm64: Use the correct style for SPDX License Identifier 2019-04-16 16:28:01 +01:00
word-at-a-time.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
xor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00