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Author SHA1 Message Date
Al Viro
c9716252be sparc: bury the sys_sigpause() remains 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:17 -05:00
Al Viro
99b06feb0f sparc: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:17 -05:00
Al Viro
0679a858c5 sh: switch to generic old sigaction() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:16 -05:00
Al Viro
881e252d6b sh: switch to generic old sigsuspend() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:16 -05:00
Al Viro
b774cc5cb6 score: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:15 -05:00
Al Viro
7a879a94d9 sh: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:15 -05:00
Al Viro
1cb44eb837 s390: kill useless wrappers 
COMPAT_SYSCALL_DEFINEx already does everything we need

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:14 -05:00
Al Viro
7eddd99c28 s390: switch to generic old sigaction() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:14 -05:00
Al Viro
f036b94344 s390: switch to generic compat rt_sigaction 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:13 -05:00
Al Viro
d7b5427cec s390: switch to generic compat sched_rr_get_interval() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:13 -05:00
Al Viro
e181ee4cd7 s390: switch to generic old sigsuspend 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:13 -05:00
Al Viro
07562be77d s390: switch to generic compat rt_sigqueueinfo() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:12 -05:00
Al Viro
bdcf03183c s390: switch to generic compat rt_sigpending() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:12 -05:00
Al Viro
7426022431 s390: switch to generic compat rt_sigprocmask(2) 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:12 -05:00
Al Viro
b1ff98cb74 powerpc: trim the crap from syscalls.h 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:11 -05:00
Al Viro
e214125aa8 s390: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:11 -05:00
Al Viro
09a4d5d015 powerpc: switch to generic old sigaction() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:10 -05:00
Al Viro
5aa1cde2ed powerpc: switch to generic compat rt_sigaction() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:10 -05:00
Al Viro
a31dd96ff7 powerpc: kill pointless wrappers 
SYSCALL_DEFINE and COMPAT_SYSCALL_DEFINE do all argument normalization
we need.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:09 -05:00
Al Viro
0980caea80 powerpc: switch to generic old sigsuspend 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:09 -05:00
Al Viro
309e44b39e powerpc: switch to generic compat rt_sigqueueinfo() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:09 -05:00
Al Viro
cfe0467c4e powerpc: switch to generic compat rt_sigpending() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:08 -05:00
Al Viro
451a651d33 powerpc: switch to generic compat rt_sigprocmask() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:08 -05:00
Al Viro
7cce246557 powerpc: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:08 -05:00
Al Viro
b0f95824f2 parisc: switch to generic compat rt_sigaction() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:07 -05:00
Al Viro
d914b8dcbb parisc: switch to generic compat sched_rr_get_interval() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:07 -05:00
Al Viro
441ff95907 parisc: switch to generic compat rt_sigqueueinfo() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:06 -05:00
Al Viro
cddc2da135 parisc: switch to generic compat rt_sigpending() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:06 -05:00
Al Viro
e6a7ad517a parisc: switch to generic compat rt_sigprocmask() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:06 -05:00
Al Viro
faec5a96a0 openrisc: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:05 -05:00
Al Viro
6e26aab98c parisc: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:05 -05:00
Al Viro
33f9f78eec mn10300: switch to generic old sigaction() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:04 -05:00
Al Viro
7d1d990ff1 mn10300: switch to generic old sigsuspend 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:04 -05:00
Al Viro
de2bfce30e microblaze: remove debris in ptrace.c 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:03 -05:00
Al Viro
b30c7d50af mn10300: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:03 -05:00
Michal Simek
4de6ba68c9 microblaze: Move restart allowed out of block 
Better not to break block which do work together.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:02 -05:00
Al Viro
e9f9252667 microblaze: fix handling of multiple pending signals 
We need to keep building sigframes until no pending signals remain.
Wrap do_notify_resume() calls into loops; do _not_ allow syscall
restart logics to trigger after the first iteration.

Incidentally, comments about pending signals that should (somehow)
be in r18 are pure BS.  Doesn't work that way and cannot work that
way, sorry...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:02 -05:00
Al Viro
14203e19cb microblaze: fix the horror with restarts of sigreturn() 
solution a-la arm one - pick a callee-saved register (r30), set it
non-zero when entering a syscall, have sigreturn wrapper zero it out
and pass the value in it to do_notify_resume() as "in_syscall" (actually,
"restarts allowed") argument.

Note that we don't give a damn about ret_from_fork() - return value
is not restart-worthy anyway.

Possible remaining bug: on !MMU we still have _debug_exception()
restartable.  If it hits with -ERESTART_... accidentally in r3, fun happens.
MMU does _not_ have _debug_exception() restartable.  If that's decided to
be a bug (as I strongly suspect it to be), we'll just need to replace
setting r30 to 1 with setting r30 to 0 in !MMU _debug_exception().
Up to microblaze maintainers...

[folded a fix from Michal]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:02 -05:00
Al Viro
c886a9fc1f microblaze: evict the check for kernel_mode(regs) from do_notify_resume() 
Only one caller hasn't done it in assembler - work_pending on !MMU.
Everything else can't reach do_notify_resume() if we are returning
to kernel mode, so move that check to that sole caller and make
do_notify_resume() reachable only when returning to userland.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:01 -05:00
Al Viro
4a9d32d377 microblaze: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:01 -05:00
Al Viro
8be433ab55 m68k: switch to generic old sigaction() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:00 -05:00
Al Viro
1ba3e7efb6 m68k: switch to generic old sigsuspend 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:00 -05:00
Al Viro
08d4f65352 m68k: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:16:00 -05:00
Al Viro
1084f751d4 m32r: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:15:59 -05:00
Al Viro
da36f98a52 hexagon: don't leave ->uc_stack uninitialized 
it's used on rt_sigreturn(2)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:15:58 -05:00
Al Viro
e8d9ef09df ia64: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:15:58 -05:00
Al Viro
b0375744f1 h8300: switch to generic old sigaction() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:15:57 -05:00
Al Viro
1e974c2166 hexagon: switch to generic sigaltstack 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:15:57 -05:00
Al Viro
b407e620ec h8300: switch to generic old sigsuspend 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:15:56 -05:00
Al Viro
ac416143b0 h8300: kill useless wrappers, fix rt_sigreturn(2) 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-02-03 18:15:56 -05:00