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82c6f5a5b3
linux/arch/arm/kernel
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Imre Deak 82c6f5a5b3 ARM: 6051/1: VFP: preserve the HW context when calling signal handlers 
From: Imre Deak <imre.deak@nokia.com>

Signal handlers can use floating point, so prevent them to corrupt
the main thread's VFP context. So far there were two signal stack
frame formats defined based on the VFP implementation, but the user
struct used for ptrace covers all posibilities, so use it for the
signal stack too.

Introduce also a new user struct for VFP exception registers. In
this too fields not relevant to the current VFP architecture are
ignored.

Support to save / restore the exception registers was added by
Will Deacon.

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-04-14 11:11:30 +01:00
..
.gitignore
armksyms.c ARM: unexport symbols used to implement floating point emulation 2009-12-15 16:28:22 +10:30
arthur.c
asm-offsets.c ARM: dma-mapping: provide per-cpu type map/unmap functions 2010-02-15 15:22:20 +00:00
atags.c
atags.h
bios32.c resource/PCI: mark struct resource as const 2010-02-22 16:16:57 -08:00
calls.S Add generic sys_old_mmap() 2010-03-12 15:52:32 -08:00
compat.c
compat.h
crunch-bits.S
crunch.c ARM: Convert VFP/Crunch/XscaleCP thread_release() to exit_thread() 2009-12-18 14:53:41 +00:00
debug.S ARM: 5910/1: ARM: Add tmp register for addruart and loadsp 2010-02-12 17:27:52 +00:00
dma-isa.c ARM: dma-isa: request cascade channel after registering it 2009-12-24 18:34:08 +00:00
dma.c
early_printk.c ARM: Add an earlyprintk debug console 2009-12-09 10:02:18 +00:00
ecard.c
ecard.h
elf.c ARM: 5883/1: Revert "disable NX support for OABI-supporting kernels" 2010-01-18 14:12:11 +00:00
entry-armv.S ARM: Fix wrong dmb 2010-01-12 18:59:16 +00:00
entry-common.S Unify sys_mmap* 2009-12-11 06:44:29 -05:00
entry-header.S ARM: 5991/1: Fix regression in restore_user_regs macro 2010-03-15 17:20:08 +00:00
etm.c ARM: 5841/1: a driver for on-chip ETM and ETB 2009-12-02 10:25:22 +00:00
fiq.c
ftrace.c
head-common.S ARM: 5784/1: fix early boot machine ID mismatch error display 2009-11-08 11:58:54 +00:00
head-nommu.S ARM: convert to use __HEAD and HEAD_TEXT macros. 2009-11-23 20:33:34 +00:00
head.S ARM: convert to use __HEAD and HEAD_TEXT macros. 2009-11-23 20:33:34 +00:00
init_task.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
io.c
irq.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
isa.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
iwmmxt.S
kgdb.c ARM: 5989/1: ARM: KGDB: add support for SMP platforms 2010-03-15 14:33:04 +00:00
kprobes-decode.c
kprobes.c Merge branch 'master' into export-slabh 2010-04-05 11:37:28 +09:00
leds.c ARM: move LED support code out of arch/arm/kernel/time.c 2010-02-15 21:39:12 +00:00
machine_kexec.c
Makefile Merge branch 'misc2' into devel 2010-02-25 22:09:41 +00:00
module.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
perf_event.c Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/genesis-2.6 2010-03-15 14:27:06 +00:00
pmu.c ARM: 5899/2: arm: provide a mechanism to reserve performance counters 2010-02-12 17:23:43 +00:00
process.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ptrace.c arm: use generic ptrace_resume code 2010-03-12 15:52:38 -08:00
ptrace.h arm: use generic ptrace_resume code 2010-03-12 15:52:38 -08:00
relocate_kernel.S
return_address.c
setup.c Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
signal.c ARM: 6051/1: VFP: preserve the HW context when calling signal handlers 2010-04-14 11:11:30 +01:00
signal.h ARM: Fix signal restart issues with NX and OABI compat 2009-10-25 15:39:37 +00:00
smp_scu.c Check whether the SCU was already initialised 2009-11-05 10:10:36 +00:00
smp_twd.c ARM: Do not allow the probing of the local timer 2009-12-09 13:19:31 +00:00
smp.c ARM: Add L2 cache handling to smp boot support 2010-03-14 19:42:35 +00:00
stacktrace.c
sys_arm.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sys_oabi-compat.c Add generic sys_ipc wrapper 2010-03-12 15:52:32 -08:00
tcm.c
tcm.h
thumbee.c
time.c ARM: move LED support code out of arch/arm/kernel/time.c 2010-02-15 21:39:12 +00:00
traps.c ARM: add notify_die() support 2010-02-15 21:39:14 +00:00
unwind.c ARM: 5977/1: arm: Enable backtrace printing on oops when PC is corrupted 2010-03-07 10:22:00 +00:00
vmlinux.lds.S ARM: 5880/1: arm: use generic infrastructure for early params 2010-02-15 21:39:13 +00:00
xscale-cp0.c ARM: Convert VFP/Crunch/XscaleCP thread_release() to exit_thread() 2009-12-18 14:53:41 +00:00