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[SPARC]: Add support for *at(), ppoll, and pselect syscalls.

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This also includes by necessity _TIF_RESTORE_SIGMASK support,
which actually resulted in a lot of cleanups.

The sparc signal handling code is quite a mess and I should
clean it up some day.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2006-01-19 02:42:49 -08:00
parent f7111ceb52
commit 2d7d5f0511
16 changed files with 189 additions and 427 deletions
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9
arch/sparc/kernel/rtrap.S
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@@ -68,15 +68,14 @@ ret_trap_lockless_ipi:
ld [%curptr + TI_FLAGS], %g2
signal_p:
andcc %g2, (_TIF_NOTIFY_RESUME|_TIF_SIGPENDING), %g0
andcc %g2, (_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK), %g0
bz,a ret_trap_continue
ld [%sp + STACKFRAME_SZ + PT_PSR], %t_psr
clr %o0
mov %l5, %o2
mov %l6, %o3
mov %l5, %o1
mov %l6, %o2
call do_signal
add %sp, STACKFRAME_SZ, %o1 ! pt_regs ptr
add %sp, STACKFRAME_SZ, %o0 ! pt_regs ptr
/* Fall through. */
ld [%sp + STACKFRAME_SZ + PT_PSR], %t_psr