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linux/arch/arm/kernel
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Douglas Anderson 2bb93af182 ARM: 8997/2: hw_breakpoint: Handle inexact watchpoint addresses 
[ Upstream commit 22c9e58299 ]

This is commit fdfeff0f9e ("arm64: hw_breakpoint: Handle inexact
watchpoint addresses") but ported to arm32, which has the same
problem.

This problem was found by Android CTS tests, notably the
"watchpoint_imprecise" test [1].  I tested locally against a copycat
(simplified) version of the test though.

[1] https://android.googlesource.com/platform/bionic/+/master/tests/sys_ptrace_test.cpp

Link: https://lkml.kernel.org/r/20191019111216.1.I82eae759ca6dc28a245b043f485ca490e3015321@changeid

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-05 11:08:39 +01:00
..
.gitignore
[ARM] 5194/1: update .gitignore
2008-08-12 19:54:09 +01:00
arch_timer.c
arch_timer: Move to generic sched_clock framework
2013-10-09 16:54:10 -07:00
armksyms.c
ARM: 8745/1: get rid of __memzero()
2018-01-21 15:37:56 +00:00
asm-offsets.c
include/linux/compiler*.h: make compiler-*.h mutually exclusive
2018-08-22 17:31:34 -07:00
atags_compat.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
atags_parse.c
ARM: better diagnostics with missing/corrupt dtb
2017-09-29 13:57:21 +01:00
atags_proc.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
atags.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
bios32.c
PCI: Remove PCI_REASSIGN_ALL_RSRC use on arm and arm64
2017-12-18 23:07:43 -06:00
bugs.c
ARM: clean up per-processor check_bugs method call
2019-02-20 10:25:38 +01:00
cpuidle.c
ARM: Convert to using %pOF instead of full_name
2017-08-16 22:25:30 +02:00
crash_dump.c
ARM: 8012/1: kdump: Avoid overflow when converting pfn to physaddr
2014-04-07 12:10:00 +01:00
debug.S
Merge branches 'fixes', 'misc' and 'sa1111-for-next' into for-next
2017-11-08 19:42:43 +00:00
devtree.c
ARM: Convert to using %pOF instead of full_name
2017-08-16 22:25:30 +02:00
dma-isa.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
dma.c
proc: introduce proc_create_single{,_data}
2018-05-16 07:23:35 +02:00
early_printk.c
ARM: 8705/1: early_printk: use printascii() rather than printch()
2017-10-12 11:29:29 +01:00
efi.c
ARM/efi: Apply strict permissions for UEFI Runtime Services regions
2016-04-28 11:33:53 +02:00
elf.c
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2017-11-16 12:50:35 -08:00
entry-armv.S
ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
2020-06-03 08:19:34 +02:00
entry-common.S
ARM: 8802/1: Call syscall_trace_exit even when system call skipped
2019-11-24 08:20:56 +01:00
entry-ftrace.S
ARM: 8678/1: ftrace: Adds support for CONFIG_DYNAMIC_FTRACE_WITH_REGS
2017-06-18 22:25:16 +01:00
entry-header.S
ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
2020-06-03 08:19:34 +02:00
entry-v7m.S
ARM: 8830/1: NOMMU: Toggle only bits in EXC_RETURN we are really care of
2019-04-05 22:33:12 +02:00
fiq.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
fiqasm.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
ftrace.c
ARM: function_graph: Simplify with function_graph_enter()
2018-12-05 19:32:09 +01:00
head-common.S
ARM: 8914/1: NOMMU: Fix exc_ret for XIP
2019-11-06 13:06:10 +01:00
head-inflate-data.c
ARM: XIP kernel: store .data compressed in ROM
2017-09-10 19:34:53 -04:00
head-nommu.S
ARM: 8849/1: NOMMU: Fix encodings for PMSAv8's PRBAR4/PRLAR4
2020-01-27 14:50:28 +01:00
head.S
ARM: align .data section
2017-08-14 16:22:55 +01:00
hibernate.c
ARM: use virt_to_idmap() for soft_restart()
2016-02-08 15:48:32 +00:00
hw_breakpoint.c
ARM: 8997/2: hw_breakpoint: Handle inexact watchpoint addresses
2020-11-05 11:08:39 +01:00
hyp-stub.S
ARM: 8955/1: virt: Relax arch timer version check during early boot
2020-02-05 14:43:50 +00:00
insn.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +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
ARM: 8824/1: fix a migrating irq bug when hotplug cpu
2019-03-23 20:09:48 +01:00
isa.c
arm: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:15 -07:00
iwmmxt.S
ARM: align .data section
2017-08-14 16:22:55 +01:00
jump_label.c
jump_label: move 'asm goto' support test to Kconfig
2019-06-04 08:02:34 +02:00
kgdb.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
machine_kexec.c
ARM: avoid Cortex-A9 livelock on tight dmb loops
2019-04-05 22:33:12 +02:00
Makefile
ARM: bugs: prepare processor bug infrastructure
2018-05-31 10:39:18 +01:00
module-plts.c
ARM: 8662/1: module: split core and init PLT sections
2017-03-17 10:01:28 +00:00
module.c
ARM: Silence first allocation with CONFIG_ARM_MODULE_PLTS=y
2017-05-11 14:43:31 +01:00
module.lds
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
opcodes.c
ARM: 7206/1: Add generic ARM instruction set condition code checks.
2011-12-13 08:52:02 +00:00
paravirt.c
arm: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops
2015-12-21 14:40:54 +00:00
patch.c
ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
2019-04-20 09:16:04 +02:00
perf_callchain.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
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: Tidy up clear_event_idx call backs
2018-07-10 18:19:02 +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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pj4-cp0.c
ARM: 8452/3: PJ4: make coprocessor access sequences buildable in Thumb2 mode
2016-01-04 11:12:10 +00:00
process.c
mm: zero out the vma in vma_init()
2018-08-22 10:52:44 -07:00
psci_smp.c
ARM: use const and __initconst for smp_operations
2015-12-01 22:17:45 +01:00
ptrace.c
ARM: 8977/1: ptrace: Fix mask for thumb breakpoint hook
2020-06-22 09:04:59 +02:00
reboot.c
ARM: soft-reboot into same mode that we entered the kernel
2017-04-09 07:49:24 -07:00
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
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
return_address.c
ARM: 8328/1: remove empty preprocessor #else branch
2015-03-28 16:54:53 +00:00
setup.c
ARM: spectre-v2: per-CPU vtables to work around big.Little systems
2019-02-20 10:25:38 +01:00
signal.c
ARM: 8793/1: signal: replace __put_user_error with __put_user
2019-02-20 10:25:36 +01:00
signal.h
ARM: signal handling support for FDPIC_FUNCPTRS functions
2017-09-10 19:31:46 -04:00
sigreturn_codes.S
ARM: signal handling support for FDPIC_FUNCPTRS functions
2017-09-10 19:31:46 -04:00
sleep.S
ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
2020-01-27 14:50:28 +01:00
smccc-call.S
arm: kernel: Add SMC structure parameter
2017-02-03 18:46:33 +00:00
smp_scu.c
ARM: smp_scu: allow the platform code to read the SCU CPU status
2017-10-29 08:29:30 -07:00
smp_tlb.c
ARM: 8613/1: Fix the uaccess crash on PB11MPCore
2017-01-16 17:30:46 +00:00
smp_twd.c
clocksource/drivers: Rename CLOCKSOURCE_OF_DECLARE to TIMER_OF_DECLARE
2017-06-14 11:58:45 +02:00
smp.c
ARM: prevent tracing IPI_CPU_BACKTRACE
2019-06-15 11:54:00 +02:00
stacktrace.c
ARM: 8948/1: Prevent OOB access in stacktrace
2020-10-01 13:14:31 +02:00
suspend.c
ARM: bugs: hook processor bug checking into SMP and suspend paths
2018-05-31 10:39:29 +01:00
swp_emulate.c
Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2018-06-04 15:23:48 -07:00
sys_arm.c
mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
2018-04-02 20:16:10 +02:00
sys_oabi-compat.c
ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user()
2019-02-20 10:25:36 +01:00
tcm.c
ARM: 8388/1: tcm: Don't crash when TCM banks are protected by TrustZone
2015-06-06 10:37:28 +01:00
thumbee.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
time.c
ARM/time: Remove read_boot_clock64()
2018-07-20 00:02:41 +02:00
topology.c
ARM: Convert to using %pOF instead of full_name
2017-08-16 22:25:30 +02:00
traps.c
ARM: 8948/1: Prevent OOB access in stacktrace
2020-10-01 13:14:31 +02:00
unwind.c
ARM: 8840/1: use a raw_spinlock_t in unwind
2019-04-05 22:33:01 +02:00
v7m.c
ARM: 7828/1: ARMv7-M: implement restart routine common to all v7-M machines
2013-09-02 13:49:29 +01:00
vdso.c
ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional()
2020-03-20 11:55:59 +01:00
vmlinux-xip.lds.S
ARM: 8757/1: NOMMU: Support PMSAv8 MPU
2018-05-19 11:53:46 +01:00
vmlinux.lds.h
vmlinux.lds.h: Fix incomplete .text.exit discards
2018-10-12 08:54:58 +11:00
vmlinux.lds.S
ARM: 8757/1: NOMMU: Support PMSAv8 MPU
2018-05-19 11:53:46 +01:00
xscale-cp0.c
ARM: make xscale iwmmxt code multiplatform aware
2015-12-01 21:44:24 +01:00