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linux/arch/arm/kernel
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Ard Biesheuvel dfbdcda280 gcc-plugins: arm-ssp: Prepare for THREAD_INFO_IN_TASK support 
We will be enabling THREAD_INFO_IN_TASK support for ARM, which means
that we can no longer load the stack canary value by masking the stack
pointer and taking the copy that lives in thread_info. Instead, we will
be able to load it from the task_struct directly, by using the TPIDRURO
register which will hold the current task pointer when
THREAD_INFO_IN_TASK is in effect. This is much more straight-forward,
and allows us to declutter this code a bit while at it.

Note that this means that ARMv6 (non-v6K) SMP systems can no longer use
this feature, but those are quite rare to begin with, so this is a
reasonable trade off.

Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
2021-09-27 16:54:01 +02:00
..
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
arch_timer.c
ARM: 8913/1: arch_timer: include <asm/arch_timer.h>
2019-10-27 21:14:43 +00:00
armksyms.c
crypto: lib/sha1 - remove unnecessary includes of linux/cryptohash.h
2020-05-08 15:32:17 +10:00
asm-offsets.c
gcc-plugins: arm-ssp: Prepare for THREAD_INFO_IN_TASK support
2021-09-27 16:54:01 +02:00
atags_compat.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
atags_parse.c
ARM: 9011/1: centralize phys-to-virt conversion of DT/ATAGS address
2020-10-27 12:10:59 +00:00
atags_proc.c
ARM: 8973/1: Add missing newline terminator to kernel message
2020-05-07 20:53:10 +01:00
atags.h
ARM: 9011/1: centralize phys-to-virt conversion of DT/ATAGS address
2020-10-27 12:10:59 +00:00
bios32.c
ARM/PCI: Remove unused fields from struct hw_pci
2020-09-18 22:39:09 +01:00
bugs.c
treewide: fix typos of SPDX-License-Identifier
2019-06-01 18:29:58 +02:00
cpuidle.c
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00
crash_dump.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
debug.S
ARM: 9005/1: debug: Select flow control for all debug UARTs
2020-09-15 14:35:28 +01:00
devtree.c
ARM: 9011/1: centralize phys-to-virt conversion of DT/ATAGS address
2020-10-27 12:10:59 +00:00
dma-isa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
early_printk.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
efi.c
mm/pgtable: drop pgtable_t variable from pte_fn_t functions
2019-07-12 11:05:46 -07:00
elf.c
arm32/64/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK
2020-04-20 19:42:19 +02:00
entry-armv.S
ARM: ep93xx: remove MaverickCrunch support
2021-08-04 13:30:04 +02:00
entry-common.S
ARM: 9113/1: uaccess: remove set_fs() implementation
2021-08-20 11:39:27 +01:00
entry-ftrace.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
entry-header.S
ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
2020-05-03 17:30:24 +01:00
entry-v7m.S
printk: Userspace format indexing support
2021-07-19 11:57:48 +02:00
fiq.c
arm: fix the flush_icache_range arguments in set_fiq_handler
2020-06-08 11:05:57 -07:00
fiqasm.S
…
ftrace.c
ARM: 9079/1: ftrace: Add MODULE_PLTS support
2021-06-07 12:56:20 +01:00
head-common.S
Merge branch 'devel-stable' into for-next
2020-12-21 11:19:26 +00:00
head-inflate-data.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
head-nommu.S
ARM: 8914/1: NOMMU: Fix exc_ret for XIP
2019-10-10 22:23:20 +01:00
head.S
ARM: 9104/2: Fix Keystone 2 kernel mapping regression
2021-08-10 12:17:25 +01:00
hibernate.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
hw_breakpoint.c
ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook
2021-03-25 10:27:41 +00:00
hyp-stub.S
Merge branch 'devel-stable' into for-next
2020-12-21 11:19:26 +00:00
insn.c
ARM: 9078/1: Add warn suppress parameter to arm_gen_branch_link()
2021-06-07 12:56:20 +01:00
io.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
irq.c
genirq: Move non-irqdomain handle_domain_irq() handling into ARM's handle_IRQ()
2021-06-10 13:09:19 +01:00
isa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
iwmmxt.h
ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler
2020-12-08 10:14:59 +00:00
iwmmxt.S
ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler
2020-12-08 10:14:59 +00:00
jump_label.c
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
kgdb.c
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
2020-06-17 10:57:41 -07:00
machine_kexec.c
ARM: 9060/1: kexec: Remove unused kexec_reinit callback
2021-03-09 10:25:35 +00:00
Makefile
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux
2020-12-22 13:34:27 -08:00
module-plts.c
ARM: 9098/1: ftrace: MODULE_PLT: Fix build problem without DYNAMIC_FTRACE
2021-07-05 11:52:26 +01:00
module.c
ARM: module: add support for place relative relocations
2020-10-28 16:59:43 +01:00
opcodes.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
paravirt.c
x86/paravirt: Switch time pvops functions to use static_call()
2021-03-11 16:17:52 +01:00
patch.c
arm/patch: Fix !MMU compile
2020-02-11 12:56:27 +01:00
perf_callchain.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
perf_event_v6.c
arm_pmu: Tidy up clear_event_idx call backs
2018-07-10 18:19:02 +01:00
perf_event_v7.c
arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
2021-06-01 14:17:01 +01:00
perf_event_xscale.c
arm_pmu: Tidy up clear_event_idx call backs
2018-07-10 18:19:02 +01:00
perf_regs.c
perf/arch: Remove perf_sample_data::regs_user_copy
2020-11-09 18:12:34 +01:00
phys2virt.S
ARM: p2v: reduce p2v alignment requirement to 2 MiB
2020-10-28 16:59:43 +01:00
pj4-cp0.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
process.c
gcc-plugins: arm-ssp: Prepare for THREAD_INFO_IN_TASK support
2021-09-27 16:54:01 +02:00
psci_smp.c
ARM: 8919/1: make unexported functions static
2019-10-31 16:58:52 +00:00
ptrace.c
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2021-09-09 13:25:49 -07:00
reboot.c
ARM: 9096/1: Remove arm_pm_restart()
2021-06-13 18:16:48 +01:00
reboot.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
relocate_kernel.S
ARM: kexec: fix oops after TLB are invalidated
2021-02-05 10:23:29 +00:00
return_address.c
ARM: 8918/2: only build return_address() if needed
2019-11-15 22:21:07 +00:00
setup.c
memblock: make memblock_find_in_range method private
2021-09-03 09:58:17 -07:00
signal.c
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2021-09-09 13:25:49 -07:00
signal.h
ARM: 8920/1: share get_signal_page from signal.c to process.c
2019-10-31 16:58:53 +00:00
sigreturn_codes.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
sleep.S
ARM: sleep.S: use PC-relative insn sequence for sleep_save_sp/mpidr_hash
2020-10-28 17:05:40 +01:00
smccc-call.S
ARM: 9075/1: kernel: Fix interrupted SMC calls
2021-04-18 19:15:14 +01:00
smp_scu.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
smp_tlb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
smp_twd.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
smp.c
printk: remove NMI tracking
2021-07-26 15:09:44 +02:00
stacktrace.c
ARM: 8992/1: Fix unwind_frame for clang-built kernels
2020-07-21 16:33:40 +01:00
suspend.c
ARM: 9066/1: ftrace: pause/unpause function graph tracer in cpu_suspend()
2021-03-25 10:27:42 +00:00
swp_emulate.c
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
sys_arm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
sys_oabi-compat.c
ARM: 9110/1: oabi-compat: fix oabi epoll sparse warning
2021-08-20 11:39:27 +01:00
tcm.c
ARM: 8925/1: tcm: include <asm/tcm.h> for missing declarations
2019-10-31 16:58:56 +00:00
thumbee.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
time.c
ARM: rpc: use legacy_timer_tick
2020-10-30 21:57:05 +01:00
topology.c
ARM, sched/topology: Revert back to default scheduler topology
2020-08-19 10:49:47 +02:00
traps.c
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2021-09-09 13:25:49 -07:00
unwind.c
ARM: 9026/1: unwind: remove old check for GCC <= 4.2
2020-12-08 10:13:59 +00:00
v7m.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
vdso.c
mm: forbid splitting special mappings
2020-12-15 12:13:41 -08:00
vmlinux-xip.lds.S
arm/build: Assert for unwanted sections
2020-09-01 10:03:18 +02:00
vmlinux.lds.S
ARM: 9088/1: Split KERNEL_OFFSET from PAGE_OFFSET
2021-06-13 18:16:40 +01:00
xscale-cp0.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00