linux-toradex.git/arch/openrisc/kernel/signal.c, branch v3.19.3

openrisc: Use sigsp()

2014-08-06T11:04:31+00:00

Use sigsp() instead of the open coded variant.

Signed-off-by: Richard Weinberger

openrisc: Use get_signal() signal_setup_done()

2014-01-09T09:57:21+00:00

Use the more generic functions get_signal() signal_setup_done()
for signal delivery.

Signed-off-by: Richard Weinberger 
Signed-off-by: Jonas Bonn

openrisc: Rework signal handling

2014-01-09T09:57:21+00:00

The mainline signal handling code for OpenRISC has been buggy since day
one with respect to syscall restart.  This patch significantly reworks
the signal handling code:

i)   Move the "work pending" loop to C code (borrowed from ARM arch)

ii)  Allow a tracer to muck about with the IP and skip syscall restart
     in that case (again, borrowed from ARM)

iii) Make signal handling WRT syscall restart actually work

v)   Make the signal handling code look more like that of other
     architectures so that it's easier for others to follow

Reported-by: Anders Nystrom 
Signed-off-by: Jonas Bonn

openrisc: switch to generic sigaltstack

2013-02-03T23:16:05+00:00

Signed-off-by: Al Viro

openrisk: fix altstack switching on sigreturn

2012-11-29T02:46:11+00:00

do_sigaltstack() expects _userland_ address, TYVM...

Signed-off-by: Al Viro

new helper: signal_delivered()

2012-06-01T16:58:52+00:00

Does block_sigmask() + tracehook_signal_handler();  called when
sigframe has been successfully built.  All architectures converted
to it; block_sigmask() itself is gone now (merged into this one).

I'm still not too happy with the signature, but that's a separate
story (IMO we need a structure that would contain signal number +
siginfo + k_sigaction, so that get_signal_to_deliver() would fill one,
signal_delivered(), handle_signal() and probably setup...frame() -
take one).

Signed-off-by: Al Viro

most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set

2012-06-01T16:58:51+00:00

Only 3 out of 63 do not.  Renamed the current variant to __set_current_blocked(),
added set_current_blocked() that will exclude unblockable signals, switched
open-coded instances to it.

Signed-off-by: Al Viro

pull clearing RESTORE_SIGMASK into block_sigmask()

2012-06-01T16:58:49+00:00

Signed-off-by: Al Viro

openrisc: tracehook_signal_handler() is supposed to be called on success

2012-06-01T16:58:48+00:00

... not if sigframe couldn't have been built.

Signed-off-by: Al Viro

new helper: sigmask_to_save()

2012-06-01T16:58:48+00:00

replace boilerplate "should we use ->saved_sigmask or ->blocked?"
with calls of obvious inlined helper...

Signed-off-by: Al Viro