Will Deacon b9a4b9d084 arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals ...

FAR_EL1 is UNKNOWN for all debug exceptions other than those caused by
taking a hardware watchpoint. Unfortunately, if a debug handler returns
a non-zero value, then we will propagate the UNKNOWN FAR value to
userspace via the si_addr field of the SIGTRAP siginfo_t.

Instead, let's set si_addr to take on the PC of the faulting instruction,
which we have available in the current pt_regs.

Cc: <stable@vger.kernel.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

2019-03-01 16:23:17 +00:00

..

cache.S

arm64: Fix minor issues with the dcache_by_line_op macro

2018-12-10 15:03:51 +00:00

context.c

arm64: mm: Drop the unused cpu parameter

2018-10-09 17:17:23 +01:00

copypage.c

arm64: Defer dcache flush in __cpu_copy_user_page

2015-12-17 11:07:13 +00:00

dma-mapping.c

DMA mapping updates for Linux 4.21

2018-12-28 14:12:21 -08:00

dump.c

arm64: dump: no need to check return value of debugfs_create functions

2019-01-31 17:38:19 +00:00

extable.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

fault.c

arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals

2019-03-01 16:23:17 +00:00

flush.c

arm64: mm: Export __sync_icache_dcache() for xen-privcmd

2018-07-27 13:12:15 +01:00

hugetlbpage.c

arm64: hugetlb: Register hugepages during arch init

2018-12-06 17:01:13 +00:00

init.c

arm64: mm: make use of new memblocks_present() helper

2019-01-21 17:34:29 +00:00

ioremap.c

arm64: use is_vmalloc_addr

2017-02-09 13:47:56 +00:00

kasan_init.c

mm/memblock.c: skip kmemleak for kasan_init()

2018-12-28 12:11:49 -08:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

mmap.c

exec: pass stack rlimit into mm layout functions

2018-04-11 10:28:37 -07:00

mmu.c

arm64: Remove asm/memblock.h

2019-01-21 17:31:15 +00:00

numa.c

arm64: Add memory hotplug support

2018-12-12 14:43:43 +00:00

pageattr.c

arm64: mm: apply r/o permissions of VM areas to its linear alias as well

2018-11-20 11:38:26 +00:00

pgd.c

arm64: handle 52-bit addresses in TTBR

2017-12-22 17:35:21 +00:00

physaddr.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

proc.S

arm64: Add workaround for Fujitsu A64FX erratum 010001

2019-02-28 16:24:25 +00:00

ptdump_debugfs.c

arm64: dump: no need to check return value of debugfs_create functions

2019-01-31 17:38:19 +00:00