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-rw-r--r--arch/sparc/kernel/entry.S56
-rw-r--r--arch/sparc/kernel/rtrap.S9
-rw-r--r--arch/sparc/kernel/signal.c117
-rw-r--r--arch/sparc/kernel/sparc_ksyms.c2
-rw-r--r--arch/sparc/kernel/systbls.S10
5 files changed, 44 insertions, 150 deletions
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 03ecb4e..c51d08d 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1277,62 +1277,6 @@ sys_sigstack:
mov %l5, %o7
.align 4
- .globl sys_sigpause
-sys_sigpause:
- /* Note: %o0 already has correct value... */
- call do_sigpause
- add %sp, STACKFRAME_SZ, %o1
-
- ld [%curptr + TI_FLAGS], %l5
- andcc %l5, _TIF_SYSCALL_TRACE, %g0
- be 1f
- nop
-
- call syscall_trace
- nop
-
-1:
- /* We are returning to a signal handler. */
- RESTORE_ALL
-
- .align 4
- .globl sys_sigsuspend
-sys_sigsuspend:
- call do_sigsuspend
- add %sp, STACKFRAME_SZ, %o0
-
- ld [%curptr + TI_FLAGS], %l5
- andcc %l5, _TIF_SYSCALL_TRACE, %g0
- be 1f
- nop
-
- call syscall_trace
- nop
-
-1:
- /* We are returning to a signal handler. */
- RESTORE_ALL
-
- .align 4
- .globl sys_rt_sigsuspend
-sys_rt_sigsuspend:
- /* Note: %o0, %o1 already have correct value... */
- call do_rt_sigsuspend
- add %sp, STACKFRAME_SZ, %o2
-
- ld [%curptr + TI_FLAGS], %l5
- andcc %l5, _TIF_SYSCALL_TRACE, %g0
- be 1f
- nop
-
- call syscall_trace
- nop
-
-1:
- /* We are returning to a signal handler. */
- RESTORE_ALL
-
- .align 4
.globl sys_sigreturn
sys_sigreturn:
call do_sigreturn
diff --git a/arch/sparc/kernel/rtrap.S b/arch/sparc/kernel/rtrap.S
index f7460d8..77ca6fd 100644
--- a/arch/sparc/kernel/rtrap.S
+++ b/arch/sparc/kernel/rtrap.S
@@ -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
diff --git a/arch/sparc/kernel/signal.c b/arch/sparc/kernel/signal.c
index 5f34d7d..0748d81 100644
--- a/arch/sparc/kernel/signal.c
+++ b/arch/sparc/kernel/signal.c
@@ -35,9 +35,6 @@ extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
void *fpqueue, unsigned long *fpqdepth);
extern void fpload(unsigned long *fpregs, unsigned long *fsr);
-asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
- unsigned long orig_o0, int restart_syscall);
-
/* Signal frames: the original one (compatible with SunOS):
*
* Set up a signal frame... Make the stack look the way SunOS
@@ -95,98 +92,30 @@ struct rt_signal_frame {
#define NF_ALIGNEDSZ (((sizeof(struct new_signal_frame) + 7) & (~7)))
#define RT_ALIGNEDSZ (((sizeof(struct rt_signal_frame) + 7) & (~7)))
-/*
- * atomically swap in the new signal mask, and wait for a signal.
- * This is really tricky on the Sparc, watch out...
- */
-asmlinkage void _sigpause_common(old_sigset_t set, struct pt_regs *regs)
+static int _sigpause_common(old_sigset_t set)
{
- sigset_t saveset;
-
set &= _BLOCKABLE;
spin_lock_irq(&current->sighand->siglock);
- saveset = current->blocked;
+ current->saved_sigmask = current->blocked;
siginitset(&current->blocked, set);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
- regs->pc = regs->npc;
- regs->npc += 4;
-
- /* Condition codes and return value where set here for sigpause,
- * and so got used by setup_frame, which again causes sigreturn()
- * to return -EINTR.
- */
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- /*
- * Return -EINTR and set condition code here,
- * so the interrupted system call actually returns
- * these.
- */
- regs->psr |= PSR_C;
- regs->u_regs[UREG_I0] = EINTR;
- if (do_signal(&saveset, regs, 0, 0))
- return;
- }
-}
+ current->state = TASK_INTERRUPTIBLE;
+ schedule();
+ set_thread_flag(TIF_RESTORE_SIGMASK);
-asmlinkage void do_sigpause(unsigned int set, struct pt_regs *regs)
-{
- _sigpause_common(set, regs);
+ return -ERESTARTNOHAND;
}
-asmlinkage void do_sigsuspend (struct pt_regs *regs)
+asmlinkage int sys_sigpause(unsigned int set)
{
- _sigpause_common(regs->u_regs[UREG_I0], regs);
+ return _sigpause_common(set);
}
-asmlinkage void do_rt_sigsuspend(sigset_t __user *uset, size_t sigsetsize,
- struct pt_regs *regs)
+asmlinkage int sys_sigsuspend(old_sigset_t set)
{
- sigset_t oldset, set;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t)) {
- regs->psr |= PSR_C;
- regs->u_regs[UREG_I0] = EINVAL;
- return;
- }
-
- if (copy_from_user(&set, uset, sizeof(set))) {
- regs->psr |= PSR_C;
- regs->u_regs[UREG_I0] = EFAULT;
- return;
- }
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- oldset = current->blocked;
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- regs->pc = regs->npc;
- regs->npc += 4;
-
- /* Condition codes and return value where set here for sigpause,
- * and so got used by setup_frame, which again causes sigreturn()
- * to return -EINTR.
- */
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- /*
- * Return -EINTR and set condition code here,
- * so the interrupted system call actually returns
- * these.
- */
- regs->psr |= PSR_C;
- regs->u_regs[UREG_I0] = EINTR;
- if (do_signal(&oldset, regs, 0, 0))
- return;
- }
+ return _sigpause_common(set);
}
static inline int
@@ -1067,13 +996,13 @@ static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
* want to handle. Thus you cannot kill init even with a SIGKILL even by
* mistake.
*/
-asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
- unsigned long orig_i0, int restart_syscall)
+asmlinkage void do_signal(struct pt_regs * regs, unsigned long orig_i0, int restart_syscall)
{
siginfo_t info;
struct sparc_deliver_cookie cookie;
struct k_sigaction ka;
int signr;
+ sigset_t *oldset;
/*
* XXX Disable svr4 signal handling until solaris emulation works.
@@ -1089,7 +1018,9 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
cookie.restart_syscall = restart_syscall;
cookie.orig_i0 = orig_i0;
- if (!oldset)
+ if (test_thread_flag(TIF_RESTORE_SIGMASK))
+ oldset = &current->saved_sigmask;
+ else
oldset = &current->blocked;
signr = get_signal_to_deliver(&info, &ka, regs, &cookie);
@@ -1098,7 +1029,14 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
syscall_restart(cookie.orig_i0, regs, &ka.sa);
handle_signal(signr, &ka, &info, oldset,
regs, svr4_signal);
- return 1;
+ /* a signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TIF_RESTORE_SIGMASK flag.
+ */
+ if (test_thread_flag(TIF_RESTORE_SIGMASK))
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+ return;
}
if (cookie.restart_syscall &&
(regs->u_regs[UREG_I0] == ERESTARTNOHAND ||
@@ -1115,7 +1053,14 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs * regs,
regs->pc -= 4;
regs->npc -= 4;
}
- return 0;
+
+ /* if there's no signal to deliver, we just put the saved sigmask
+ * back
+ */
+ if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+ sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+ }
}
asmlinkage int
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 0b0d492..19b2539 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -66,7 +66,6 @@ struct poll {
extern int svr4_getcontext (svr4_ucontext_t *, struct pt_regs *);
extern int svr4_setcontext (svr4_ucontext_t *, struct pt_regs *);
-void _sigpause_common (unsigned int set, struct pt_regs *);
extern void (*__copy_1page)(void *, const void *);
extern void __memmove(void *, const void *, __kernel_size_t);
extern void (*bzero_1page)(void *);
@@ -227,7 +226,6 @@ EXPORT_SYMBOL(kunmap_atomic);
/* Solaris/SunOS binary compatibility */
EXPORT_SYMBOL(svr4_setcontext);
EXPORT_SYMBOL(svr4_getcontext);
-EXPORT_SYMBOL(_sigpause_common);
EXPORT_SYMBOL(dump_thread);
diff --git a/arch/sparc/kernel/systbls.S b/arch/sparc/kernel/systbls.S
index e457a40..6877ae4 100644
--- a/arch/sparc/kernel/systbls.S
+++ b/arch/sparc/kernel/systbls.S
@@ -75,7 +75,10 @@ sys_call_table:
/*265*/ .long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy
/*270*/ .long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
/*275*/ .long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
-/*280*/ .long sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl
+/*280*/ .long sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl, sys_openat
+/*285*/ .long sys_mkdirat, sys_mknodat, sys_fchownat, sys_futimesat, sys_newfstatat
+/*290*/ .long sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat
+/*295*/ .long sys_fchmodat, sys_faccessat, sys_pselect6, sys_ppoll
#ifdef CONFIG_SUNOS_EMUL
/* Now the SunOS syscall table. */
@@ -181,6 +184,11 @@ sunos_sys_table:
.long sunos_nosys, sunos_nosys, sunos_nosys
.long sunos_nosys
/*280*/ .long sunos_nosys, sunos_nosys, sunos_nosys
+ .long sunos_nosys, sunos_nosys, sunos_nosys
+ .long sunos_nosys, sunos_nosys, sunos_nosys
.long sunos_nosys
+/*290*/ .long sunos_nosys, sunos_nosys, sunos_nosys
+ .long sunos_nosys, sunos_nosys, sunos_nosys
+ .long sunos_nosys, sunos_nosys, sunos_nosys
#endif