diff options
| -rw-r--r-- | arch/m68k/include/asm/unistd.h | 2 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/entry.S | 16 | ||||
| -rw-r--r-- | arch/m68knommu/kernel/signal.c | 63 | ||||
| -rw-r--r-- | arch/m68knommu/platform/68328/entry.S | 3 | ||||
| -rw-r--r-- | arch/m68knommu/platform/68360/entry.S | 3 | ||||
| -rw-r--r-- | arch/m68knommu/platform/coldfire/entry.S | 3 |
6 files changed, 22 insertions, 68 deletions
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h index b95acb9..26d851d 100644 --- a/arch/m68k/include/asm/unistd.h +++ b/arch/m68k/include/asm/unistd.h @@ -373,9 +373,7 @@ #define __ARCH_WANT_SYS_SIGPENDING #define __ARCH_WANT_SYS_SIGPROCMASK #define __ARCH_WANT_SYS_RT_SIGACTION -#ifndef __uClinux__ #define __ARCH_WANT_SYS_RT_SIGSUSPEND -#endif /* * "Conditional" syscalls diff --git a/arch/m68knommu/kernel/entry.S b/arch/m68knommu/kernel/entry.S index aff6f57..2783f25 100644 --- a/arch/m68knommu/kernel/entry.S +++ b/arch/m68knommu/kernel/entry.S @@ -112,22 +112,6 @@ ENTRY(sys_clone) RESTORE_SWITCH_STACK rts -ENTRY(sys_sigsuspend) - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr do_sigsuspend - addql #4,%sp - RESTORE_SWITCH_STACK - rts - -ENTRY(sys_rt_sigsuspend) - SAVE_SWITCH_STACK - pea %sp@(SWITCH_STACK_SIZE) - jbsr do_rt_sigsuspend - addql #4,%sp - RESTORE_SWITCH_STACK - rts - ENTRY(sys_sigreturn) SAVE_SWITCH_STACK jbsr do_sigreturn diff --git a/arch/m68knommu/kernel/signal.c b/arch/m68knommu/kernel/signal.c index 1934de7..c973230 100644 --- a/arch/m68knommu/kernel/signal.c +++ b/arch/m68knommu/kernel/signal.c @@ -53,60 +53,25 @@ void ret_from_user_signal(void); void ret_from_user_rt_signal(void); -asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs); /* * Atomically swap in the new signal mask, and wait for a signal. */ -asmlinkage int do_sigsuspend(struct pt_regs *regs) +asmlinkage int +sys_sigsuspend(int unused0, int unused1, old_sigset_t mask) { - old_sigset_t mask = regs->d3; - sigset_t saveset; - mask &= _BLOCKABLE; spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; + current->saved_sigmask = current->blocked; siginitset(¤t->blocked, mask); recalc_sigpending(); spin_unlock_irq(¤t->sighand->siglock); - regs->d0 = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(&saveset, regs)) - return -EINTR; - } -} - -asmlinkage int -do_rt_sigsuspend(struct pt_regs *regs) -{ - sigset_t *unewset = (sigset_t *)regs->d1; - size_t sigsetsize = (size_t)regs->d2; - sigset_t saveset, newset; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(sigset_t)) - return -EINVAL; - - if (copy_from_user(&newset, unewset, sizeof(newset))) - return -EFAULT; - sigdelsetmask(&newset, ~_BLOCKABLE); + current->state = TASK_INTERRUPTIBLE; + schedule(); + set_restore_sigmask(); - spin_lock_irq(¤t->sighand->siglock); - saveset = current->blocked; - current->blocked = newset; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - regs->d0 = -EINTR; - while (1) { - current->state = TASK_INTERRUPTIBLE; - schedule(); - if (do_signal(&saveset, regs)) - return -EINTR; - } + return -ERESTARTNOHAND; } asmlinkage int @@ -752,11 +717,12 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, * 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) +asmlinkage int do_signal(struct pt_regs *regs) { struct k_sigaction ka; siginfo_t info; int signr; + sigset_t *oldset; /* * We want the common case to go fast, which @@ -767,13 +733,16 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs) if (!user_mode(regs)) return 1; - if (!oldset) + if (test_thread_flag(TIF_RESTORE_SIGMASK)) + oldset = ¤t->saved_sigmask; + else oldset = ¤t->blocked; signr = get_signal_to_deliver(&info, &ka, regs, NULL); if (signr > 0) { /* Whee! Actually deliver the signal. */ handle_signal(signr, &ka, &info, oldset, regs); + clear_thread_flag(TIF_RESTORE_SIGMASK); return 1; } @@ -782,5 +751,11 @@ asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs) /* Restart the system call - no handlers present */ handle_restart(regs, NULL, 0); } + + /* If there's no signal to deliver, we just restore the saved mask. */ + if (test_thread_flag(TIF_RESTORE_SIGMASK)) { + clear_thread_flag(TIF_RESTORE_SIGMASK); + sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); + } return 0; } diff --git a/arch/m68knommu/platform/68328/entry.S b/arch/m68knommu/platform/68328/entry.S index 27241e1..6eeb635 100644 --- a/arch/m68knommu/platform/68328/entry.S +++ b/arch/m68knommu/platform/68328/entry.S @@ -120,9 +120,8 @@ Lsignal_return: subql #4,%sp /* dummy return address*/ SAVE_SWITCH_STACK pea %sp@(SWITCH_STACK_SIZE) - clrl %sp@- bsrw do_signal - addql #8,%sp + addql #4,%sp RESTORE_SWITCH_STACK addql #4,%sp Lreturn: diff --git a/arch/m68knommu/platform/68360/entry.S b/arch/m68knommu/platform/68360/entry.S index c131c6e..2a671da 100644 --- a/arch/m68knommu/platform/68360/entry.S +++ b/arch/m68knommu/platform/68360/entry.S @@ -116,9 +116,8 @@ Lsignal_return: subql #4,%sp /* dummy return address*/ SAVE_SWITCH_STACK pea %sp@(SWITCH_STACK_SIZE) - clrl %sp@- bsrw do_signal - addql #8,%sp + addql #4,%sp RESTORE_SWITCH_STACK addql #4,%sp Lreturn: diff --git a/arch/m68knommu/platform/coldfire/entry.S b/arch/m68knommu/platform/coldfire/entry.S index 5e92bed..ed28788 100644 --- a/arch/m68knommu/platform/coldfire/entry.S +++ b/arch/m68knommu/platform/coldfire/entry.S @@ -167,9 +167,8 @@ Lsignal_return: subql #4,%sp /* dummy return address */ SAVE_SWITCH_STACK pea %sp@(SWITCH_STACK_SIZE) - clrl %sp@- jsr do_signal - addql #8,%sp + addql #4,%sp RESTORE_SWITCH_STACK addql #4,%sp jmp Lreturn |
