Martin Schwidefsky 39efd4ec9a s390/ptrace: race of single stepping vs signal delivery ... The current single step code is racy in regard to concurrent delivery of signals. If a signal is delivered after a PER program check occurred but before the TIF_PER_TRAP bit has been checked in entry[64].S the code clears TIF_PER_TRAP and then calls do_signal. This is wrong, if the instruction completed (or has been suppressed) a SIGTRAP should be delivered to the debugger in any case. Only if the instruction has been nullified the SIGTRAP may not be send. The new logic always sets TIF_PER_TRAP if the program check indicates PER tracing but removes it again for all program checks that are nullifying. The effect is that for each change in the PSW address we now get a single SIGTRAP. Reported-by: Andreas Arnez <arnez@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>		2012-11-23 11:14:33 +01:00
..
vdso32	s390: add various .gitignore files.	2012-05-16 14:42:41 +02:00
vdso64	s390: add various .gitignore files.	2012-05-16 14:42:41 +02:00
.gitignore	s390: add various .gitignore files.	2012-05-16 14:42:41 +02:00
asm-offsets.c	s390: add support for transactional memory	2012-09-26 15:45:02 +02:00
audit.c	[S390] Get rid of a bunch of sparse warnings again.	2007-10-12 16:13:06 +02:00
audit.h	[S390] Get rid of a bunch of sparse warnings again.	2007-10-12 16:13:06 +02:00
base.S	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
bitmap.c	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
cache.c	s390/cache: fix data/instruction cache output	2012-10-18 17:50:11 +02:00
compat_audit.c	[S390] Get rid of a bunch of sparse warnings again.	2007-10-12 16:13:06 +02:00
compat_exec_domain.c	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
compat_linux.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-10-10 12:02:25 +09:00
compat_linux.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-10-10 12:02:25 +09:00
compat_ptrace.h	[S390] ptrace cleanup	2011-01-05 12:47:31 +01:00
compat_signal.c	s390/signal: set correct address space control	2012-11-12 16:24:38 +01:00
compat_wrapper.S	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-10-10 12:02:25 +09:00
cpcmd.c	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
crash_dump.c	s390/crashdump: move fill_cpu_elf_notes() prototype to header file	2012-09-26 15:45:22 +02:00
debug.c	s390/debug: remove module_exit function / move EXPORT_SYMBOLs	2012-07-26 10:07:25 +02:00
diag.c	[S390] replace diag10() with diag10_range() function	2011-05-10 17:13:43 +02:00
dis.c	s390/disassembler: add new instructions	2012-11-23 11:14:33 +01:00
early.c	s390/mm: use pfmf instruction to initialize storage keys	2012-10-09 14:16:55 +02:00
ebcdic.c	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
entry64.S	s390/ptrace: race of single stepping vs signal delivery	2012-11-23 11:14:33 +01:00
entry.h	s390/traps: preinitialize program check table	2012-11-23 11:14:25 +01:00
entry.S	s390/ptrace: race of single stepping vs signal delivery	2012-11-23 11:14:33 +01:00
ftrace.c	[S390] cleanup ftrace backend functions	2011-01-05 12:47:31 +01:00
head31.S	s390/mm: let kernel text section always begin at 1MB	2012-10-09 14:16:59 +02:00
head64.S	s390/mm: let kernel text section always begin at 1MB	2012-10-09 14:16:59 +02:00
head_kdump.S	s390/kdump: Use 64 bit mode for 0x10000 entry point	2012-10-18 17:50:09 +02:00
head.S	s390: add zEC12 code generation support	2012-11-23 11:14:31 +01:00
ipl.c	s390/ipl: Use diagnose 8 command separation	2012-07-26 10:07:26 +02:00
irq.c	s390/irq: use designated initializers for irq class array	2012-09-26 15:45:23 +02:00
jump_label.c	s390/jump-label: add arch_jump_label_transform_static()	2011-10-25 11:54:37 -07:00
kprobes.c	s390/exceptions: switch to relative exception table entries	2012-09-26 15:45:10 +02:00
lgr.c	s390/sysinfo,stsi: change return code handling	2012-09-26 15:45:12 +02:00
machine_kexec.c	s390/crashdump: move fill_cpu_elf_notes() prototype to header file	2012-09-26 15:45:22 +02:00
Makefile	s390/traps: preinitialize program check table	2012-11-23 11:14:25 +01:00
mcount64.S	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
mcount.S	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
mem_detect.c	[S390] Rework create_mem_hole() function	2011-12-27 11:27:09 +01:00
module.c	s390/vmalloc: have separate modules area	2012-10-09 14:17:01 +02:00
nmi.c	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
os_info.c	s390/smp: make absolute lowcore / cpu restart parameter accesses more robust	2012-06-14 09:09:02 +02:00
perf_cpum_cf.c	perf_cpum_cf: Add support for counters available with IBM zEC12	2012-10-18 17:50:09 +02:00
perf_event.c	[S390] Fix build errors (fallout from system.h disintegration)	2012-03-30 09:41:12 +02:00
pgm_check.S	s390/traps: preinitialize program check table	2012-11-23 11:14:25 +01:00
process.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2012-10-10 12:02:25 +09:00
processor.c	s390/processor: use ARRAY_SIZE instead of hard coded value	2012-09-26 15:45:03 +02:00
ptrace.c	s390/ptrace: add missing ifdef	2012-09-26 15:45:21 +02:00
reipl64.S	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
reipl.S	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
relocate_kernel64.S	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
relocate_kernel.S	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
runtime_instr.c	s390/mm: rename addressing_mode to s390_user_mode	2012-09-26 15:45:05 +02:00
s390_ksyms.c	s390/string: provide asm lib functions for memcpy and memcmp	2012-09-26 15:44:50 +02:00
sclp.S	s390/sclp: fix addressing mode clobber	2012-11-06 22:39:51 +01:00
setup.c	s390: add zEC12 code generation support	2012-11-23 11:14:31 +01:00
signal.c	s390/ptrace: race of single stepping vs signal delivery	2012-11-23 11:14:33 +01:00
smp.c	s390: add uninitialized_var() to suppress false positive compiler warnings	2012-09-26 15:45:23 +02:00
stacktrace.c	s390/comments: unify copyright messages and remove file names	2012-07-20 11:15:04 +02:00
suspend.c	Disintegrate asm/system.h for S390	2012-03-28 18:30:02 +01:00
swsusp_asm64.S	s390/sigp: use sigp order code defines in assembly code	2012-06-05 13:23:36 +02:00
sys_s390.c	s390: do not clobber personality flags in sys_32_personality()	2012-08-08 07:32:56 -07:00
syscalls.S	s390/syscalls: wire up kcmp system call	2012-09-26 15:45:17 +02:00
sysinfo.c	s390/sysinfo,stsi: change return code handling	2012-09-26 15:45:12 +02:00
time.c	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2012-10-12 22:17:48 +09:00
topology.c	s390/topology: cleanup topology code	2012-11-23 11:14:31 +01:00
traps.c	s390/traps: preinitialize program check table	2012-11-23 11:14:25 +01:00
vdso.c	s390/mm: rename addressing_mode to s390_user_mode	2012-09-26 15:45:05 +02:00
vmlinux.lds.S	s390: fix linker script for 31 bit builds	2012-10-18 17:50:10 +02:00
vtime.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux	2012-10-01 11:49:56 -07:00