summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--arch/m68k/include/asm/unistd.h2
-rw-r--r--arch/m68knommu/kernel/entry.S16
-rw-r--r--arch/m68knommu/kernel/signal.c63
-rw-r--r--arch/m68knommu/platform/68328/entry.S3
-rw-r--r--arch/m68knommu/platform/68360/entry.S3
-rw-r--r--arch/m68knommu/platform/coldfire/entry.S3
6 files changed, 22 insertions, 68 deletions
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index b95acb9e7068..26d851d385bb 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 aff6f57ef8b5..2783f25e38bd 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 1934de7aaf6c..c973230dad82 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(&current->sighand->siglock);
- saveset = current->blocked;
+ current->saved_sigmask = current->blocked;
siginitset(&current->blocked, mask);
recalc_sigpending();
spin_unlock_irq(&current->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(&current->sighand->siglock);
- saveset = current->blocked;
- current->blocked = newset;
- recalc_sigpending();
- spin_unlock_irq(&current->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 = &current->saved_sigmask;
+ else
oldset = &current->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, &current->saved_sigmask, NULL);
+ }
return 0;
}
diff --git a/arch/m68knommu/platform/68328/entry.S b/arch/m68knommu/platform/68328/entry.S
index 27241e16a526..6eeb635fab7e 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 c131c6e1d92d..2a671da4af6f 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 5e92bed94b7e..ed2878829dbd 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
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-12 08:37:33 +0300