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af4cb25df93d2e7a97d65db2bfacaa4400988dea
linux/arch/arm/kernel
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Russell King af4cb25df9 ARM: uaccess: fix undefined instruction on ARMv7M/noMMU 
The use of get_domain() in copy_thread() results in an oops on
ARMv7M/noMMU systems.  The thread cpu_domain value is only used when
CONFIG_CPU_USE_DOMAINS is enabled, so there's no need to save the
value in copy_thread() except when this is enabled, and this option
will never be enabled on these platforms.

Unhandled exception: IPSR = 00000006 LR = fffffff1
CPU: 0 PID: 0 Comm: swapper Not tainted 4.2.0-next-20150909-00001-gb8ec5ad #41
Hardware name: NXP LPC18xx/43xx (Device Tree)
task: 2823fbe0 ti: 2823c000 task.ti: 2823c000
PC is at copy_thread+0x18/0x92
LR is at copy_thread+0x19/0x92
pc : [<2800a46e>]    lr : [<2800a46f>]    psr: 4100000b
sp : 2823df00  ip : 00000000  fp : 287c81c0
r10: 00000000  r9 : 00800300  r8 : 287c8000
r7 : 287c8000  r6 : 2818908d  r5 : 00000000  r4 : 287ca000
r3 : 00000000  r2 : 00000000  r1 : fffffff0  r0 : 287ca048
xPSR: 4100000b

Reported-by: Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-09-09 23:26:44 +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: uaccess: provide uaccess_save_and_enable() and uaccess_restore()
2015-08-25 16:14:43 +01:00
asm-offsets.c
Merge branch 'exec_domain_rip_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc
2015-04-15 13:53:55 -07:00
atags_compat.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
atags_parse.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
atags_proc.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
atags.h
ARM: constify machine_desc structure uses
2013-07-26 14:55:59 +01:00
bios32.c
ARM: 8293/1: kernel: fix pci_mmap_page_range() offset calculation
2015-02-23 14:43:58 +00:00
calls.S
ARM: wire up execveat syscall
2015-01-07 20:31:54 +00:00
cpuidle.c
ARM: cpuidle: Document the code
2015-03-25 09:53:43 +01:00
crash_dump.c
ARM: 8012/1: kdump: Avoid overflow when converting pfn to physaddr
2014-04-07 12:10:00 +01:00
debug.S
ARM: unify MMU/!MMU addruart calls
2015-05-20 23:09:51 +02:00
devtree.c
arm: Add devicetree fixup machine function
2014-07-29 21:26:49 -06:00
dma-isa.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
dma.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
early_printk.c
early_printk: consolidate random copies of identical code
2013-04-29 18:28:13 -07:00
elf.c
Disintegrate asm/system.h for ARM
2012-03-28 18:30:01 +01:00
entry-armv.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
entry-common.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
entry-ftrace.S
ARM: replace BSYM() with badr assembly macro
2015-05-08 17:33:50 +01:00
entry-header.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
entry-v7m.S
ARM: 8340/1: ARMv7-M: Enlarge vector table up to 256 entries
2015-05-08 10:42:21 +01:00
fiq.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
fiqasm.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
ftrace.c
ARM: kprobes: enable OPTPROBES for ARM 32
2015-01-13 16:10:17 +00:00
head-common.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
head-nommu.S
ARM: 8383/1: nommu: avoid deprecated source register on mov
2015-06-12 21:18:48 +01:00
head.S
ARM: domains: move initial domain setting value to asm/domains.h
2015-08-21 13:55:51 +01:00
hibernate.c
ARM: move reboot code to arch/arm/kernel/reboot.c
2015-04-02 09:50:45 +01:00
hw_breakpoint.c
perf: Remove type specific target pointers
2015-03-23 10:58:04 +01:00
hyp-stub.S
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2014-08-07 11:35:30 -07:00
insn.c
ARM: fix missing bug.h include in arch/arm/kernel/insn.c
2012-03-30 11:51:46 +01:00
io.c
ARM: io.c: clean up EXPORT_SYMBOL()s
2014-11-21 15:25:02 +00:00
irq.c
ARM: 8261/1: l2c: Get outer cache .write_sec callback from mach_desc only if not NULL
2015-01-16 14:35:33 +00:00
isa.c
arm: convert use of typedef ctl_table to struct ctl_table
2014-06-06 16:08:15 -07:00
iwmmxt.S
ARM: 8221/1: PJ4: allow building in Thumb-2 mode
2014-12-03 16:08:00 +00:00
jump_label.c
ARM: kprobes: enable OPTPROBES for ARM 32
2015-01-13 16:10:17 +00:00
kgdb.c
ARM: probes: move all probe code to dedicate directory
2015-01-09 09:36:50 +00:00
machine_kexec.c
ARM: 8338/1: kexec: Relax SMP validation to improve DT compatibility
2015-04-02 09:59:43 +01:00
Makefile
Merge branch 'devel-stable' into for-next
2015-06-12 21:18:57 +01:00
module-plts.c
ARM: 8364/1: fix BE32 module loading
2015-06-02 09:58:17 +01:00
module.c
ARM: 8220/1: allow modules outside of bl range
2015-05-08 10:42:34 +01:00
module.lds
ARM: 8220/1: allow modules outside of bl range
2015-05-08 10:42:34 +01:00
opcodes.c
ARM: 7206/1: Add generic ARM instruction set condition code checks.
2011-12-13 08:52:02 +00:00
patch.c
ARM: probes: move all probe code to dedicate directory
2015-01-09 09:36:50 +00:00
perf_callchain.c
arm: perf: factor out callchain code
2014-10-30 12:16:58 +00:00
perf_event_v6.c
arm: perf: factor out armv6 pmu driver
2015-05-28 16:54:13 +01:00
perf_event_v7.c
arm: perf: factor out armv7 pmu driver
2015-05-28 16:54:18 +01:00
perf_event_xscale.c
arm: perf: factor out xscale pmu driver
2015-05-28 16:54:09 +01:00
perf_event.c
arm: perf: unify perf_event{,_cpu}.c
2015-05-28 17:13:26 +01:00
perf_regs.c
perf: Move task_pt_regs sampling into arch code
2015-01-09 11:12:28 +01:00
pj4-cp0.c
ARM: 8040/1: pj4: properly detect existence of iWMMXt coprocessor
2014-04-25 12:07:34 +01:00
process.c
ARM: uaccess: fix undefined instruction on ARMv7M/noMMU
2015-09-09 23:26:44 +01:00
psci_smp.c
ARM: Check if a CPU has gone offline
2014-05-15 10:16:30 -04:00
psci-call.S
ARM: 8307/1: psci: move psci firmware calls out of line
2015-03-29 23:11:17 +01:00
psci.c
ARM: 8307/1: psci: move psci firmware calls out of line
2015-03-29 23:11:17 +01:00
ptrace.c
Merge git://git.infradead.org/users/eparis/audit
2014-10-19 16:25:56 -07:00
reboot.c
ARM: move reboot code to arch/arm/kernel/reboot.c
2015-04-02 09:50:45 +01:00
reboot.h
ARM: move reboot code to arch/arm/kernel/reboot.c
2015-04-02 09:50:45 +01:00
relocate_kernel.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
return_address.c
ARM: 8328/1: remove empty preprocessor #else branch
2015-03-28 16:54:53 +00:00
setup.c
Merge tag 'for-linus-4.2-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2015-07-01 11:53:46 -07:00
signal.c
arm: Remove signal translation and exec_domain
2015-04-12 20:58:24 +02:00
sigreturn_codes.S
ARM: 7895/1: signal: fix armv7-m build issue in sigreturn_codes.S
2013-11-30 22:21:00 +00:00
sleep.S
ARM: fix new BSYM() usage introduced via for-arm-soc branch
2015-06-12 21:19:35 +01:00
smp_scu.c
ARM: 8122/1: smp_scu: enable SCU standby support
2014-08-02 08:51:53 +01:00
smp_tlb.c
ARM: 8111/1: Enable erratum 798181 for Broadcom Brahma-B15
2014-07-24 14:40:26 +01:00
smp_twd.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
smp.c
ARM: redo TTBR setup code for LPAE
2015-06-01 23:48:19 +01:00
stacktrace.c
ARM: 8172/1: Use current_stack_pointer in save_stack_trace_tsk
2014-11-13 23:58:03 +00:00
suspend.c
ARM: 8248/1: pm: remove outdated comment
2015-01-21 15:58:57 +00:00
swp_emulate.c
ARM: software-based priviledged-no-access support
2015-08-26 20:34:24 +01:00
sys_arm.c
arm: switch to generic fork/vfork/clone
2012-11-28 22:13:54 -05:00
sys_oabi-compat.c
separate kernel- and userland-side msghdr
2014-11-19 16:22:59 -05:00
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, clocksource/drivers: Provide read_boot_clock64() and read_persistent_clock64() and use them
2015-04-03 08:18:23 +02:00
topology.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
traps.c
ARM: domains: get rid of manager mode for user domain
2015-08-21 13:55:52 +01:00
unwind.c
ARM: 8176/1: Use current_stack_pointer in unwind_backtrace
2014-11-13 23:58:09 +00:00
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
Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
2015-04-14 21:03:26 -07:00
vmlinux.lds.S
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2015-04-16 13:58:29 -05:00
xscale-cp0.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00