---

yaml --- r: 340353 b: refs/heads/master c: 135c37b h: refs/heads/master i: 340351: 775b1e1 v: v3
git-mirror · Nov 29, 2012 · 3930aa6 · 3930aa6
1 parent 4ef1e75
commit 3930aa6
Show file tree

Hide file tree

Showing 6 changed files with 8 additions and 55 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3e41f9ba611cf8b87a20eecc54572b348b48bd91
+refs/heads/master: 135c37b83c81b79a888108e3f7c5f64423d8a851
diff --git a/trunk/arch/blackfin/include/asm/unistd.h b/trunk/arch/blackfin/include/asm/unistd.h
@@ -447,6 +447,7 @@
 #define __ARCH_WANT_SYS_RT_SIGACTION
 #define __ARCH_WANT_SYS_RT_SIGSUSPEND
 #define __ARCH_WANT_SYS_EXECVE
+#define __ARCH_WANT_SYS_VFORK
 
 /*
  * "Conditional" syscalls

diff --git a/trunk/arch/blackfin/kernel/entry.S b/trunk/arch/blackfin/kernel/entry.S
@@ -57,36 +57,3 @@ ENTRY(_ret_from_fork)
 	RESTORE_CONTEXT
 	rti;
 ENDPROC(_ret_from_fork)
-
-ENTRY(_sys_vfork)
-	r0 = sp;
-	r0 += 24;
-	[--sp] = rets;
-	SP += -12;
-	pseudo_long_call _bfin_vfork, p2;
-	SP += 12;
-	rets = [sp++];
-	rts;
-ENDPROC(_sys_vfork)
-
-ENTRY(_sys_clone)
-	r0 = sp;
-	r0 += 24;
-	[--sp] = rets;
-	SP += -12;
-	pseudo_long_call _bfin_clone, p2;
-	SP += 12;
-	rets = [sp++];
-	rts;
-ENDPROC(_sys_clone)
-
-ENTRY(_sys_rt_sigreturn)
-	r0 = sp;
-	r0 += 24;
-	[--sp] = rets;
-	SP += -12;
-	pseudo_long_call _do_rt_sigreturn, p2;
-	SP += 12;
-	rets = [sp++];
-	rts;
-ENDPROC(_sys_rt_sigreturn)
diff --git a/trunk/arch/blackfin/kernel/process.c b/trunk/arch/blackfin/kernel/process.c
@@ -127,28 +127,13 @@ void flush_thread(void)
 {
 }
 
-asmlinkage int bfin_vfork(struct pt_regs *regs)
+asmlinkage int bfin_clone(unsigned long clone_flags, unsigned long newsp)
 {
-	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), regs, 0, NULL,
-		       NULL);
-}
-
-asmlinkage int bfin_clone(struct pt_regs *regs)
-{
-	unsigned long clone_flags;
-	unsigned long newsp;
-
 #ifdef __ARCH_SYNC_CORE_DCACHE
 	if (current->nr_cpus_allowed == num_possible_cpus())
 		set_cpus_allowed_ptr(current, cpumask_of(smp_processor_id()));
 #endif
-
-	/* syscall2 puts clone_flags in r0 and usp in r1 */
-	clone_flags = regs->r0;
-	newsp = regs->r1;
-	if (!newsp)
-		newsp = rdusp();
-	else
+	if (newsp)
 		newsp -= 12;
 	return do_fork(clone_flags, newsp, regs, 0, NULL, NULL);
 }
@@ -174,7 +159,7 @@ copy_thread(unsigned long clone_flags,
 	} else {
 		*childregs = *regs;
 		childregs->r0 = 0;
-		p->thread.usp = usp;
+		p->thread.usp = usp ? : rdusp();
 		v[0] = v[1] = 0;
 	}
 

diff --git a/trunk/arch/blackfin/kernel/signal.c b/trunk/arch/blackfin/kernel/signal.c
@@ -82,9 +82,9 @@ rt_restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, int *p
 	return err;
 }
 
-asmlinkage int do_rt_sigreturn(unsigned long __unused)
+asmlinkage int sys_rt_sigreturn(void)
 {
-	struct pt_regs *regs = (struct pt_regs *)__unused;
+	struct pt_regs *regs = current_pt_regs();
 	unsigned long usp = rdusp();
 	struct rt_sigframe *frame = (struct rt_sigframe *)(usp);
 	sigset_t set;

diff --git a/trunk/arch/blackfin/mach-common/entry.S b/trunk/arch/blackfin/mach-common/entry.S
@@ -1431,7 +1431,7 @@ ENTRY(_sys_call_table)
 	.long _sys_ni_syscall	/* old sys_ipc */
 	.long _sys_fsync
 	.long _sys_ni_syscall	/* old sys_sigreturn */
-	.long _sys_clone		/* 120 */
+	.long _bfin_clone		/* 120 */
 	.long _sys_setdomainname
 	.long _sys_newuname
 	.long _sys_ni_syscall	/* old sys_modify_ldt */