---

yaml --- r: 104382 b: refs/heads/master c: 64f0973 h: refs/heads/master v: v3
git-mirror · Jul 16, 2008 · c16750c · c16750c
1 parent 6c7e4e4
commit c16750c
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Showing 5 changed files with 3 additions and 19 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6718d0d6da2749d3bff522e6057e97e6aa85e4d1
+refs/heads/master: 64f097331928b01d704047c1dbc738bb6d2a9bf9
diff --git a/trunk/arch/x86/kernel/entry_32.S b/trunk/arch/x86/kernel/entry_32.S
@@ -383,10 +383,6 @@ syscall_exit:
 					# setting need_resched or sigpending
 					# between sampling and the iret
 	TRACE_IRQS_OFF
-	testl $X86_EFLAGS_TF,PT_EFLAGS(%esp)	# If tracing set singlestep flag on exit
-	jz no_singlestep
-	orl $_TIF_SINGLESTEP,TI_flags(%ebp)
-no_singlestep:
 	movl TI_flags(%ebp), %ecx
 	testw $_TIF_ALLWORK_MASK, %cx	# current->work
 	jne syscall_exit_work

diff --git a/trunk/arch/x86/kernel/signal_32.c b/trunk/arch/x86/kernel/signal_32.c
@@ -657,12 +657,6 @@ static void do_signal(struct pt_regs *regs)
 void
 do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
 {
-	/* Pending single-step? */
-	if (thread_info_flags & _TIF_SINGLESTEP) {
-		regs->flags |= X86_EFLAGS_TF;
-		clear_thread_flag(TIF_SINGLESTEP);
-	}
-
 	/* deal with pending signal delivery */
 	if (thread_info_flags & _TIF_SIGPENDING)
 		do_signal(regs);

diff --git a/trunk/arch/x86/kernel/signal_64.c b/trunk/arch/x86/kernel/signal_64.c
@@ -487,12 +487,6 @@ static void do_signal(struct pt_regs *regs)
 void do_notify_resume(struct pt_regs *regs, void *unused,
 		      __u32 thread_info_flags)
 {
-	/* Pending single-step? */
-	if (thread_info_flags & _TIF_SINGLESTEP) {
-		regs->flags |= X86_EFLAGS_TF;
-		clear_thread_flag(TIF_SINGLESTEP);
-	}
-
 #ifdef CONFIG_X86_MCE
 	/* notify userspace of pending MCEs */
 	if (thread_info_flags & _TIF_MCE_NOTIFY)

diff --git a/trunk/include/asm-x86/thread_info.h b/trunk/include/asm-x86/thread_info.h
@@ -124,15 +124,15 @@ struct thread_info {
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK							\
 	(0x0000FFFF &							\
-	 ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|_TIF_SINGLESTEP|	\
+	 ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT|			\
 	 _TIF_SECCOMP|_TIF_SYSCALL_EMU))
 
 /* work to do on any return to user space */
 #define _TIF_ALLWORK_MASK (0x0000FFFF & ~_TIF_SECCOMP)
 
 /* Only used for 64 bit */
 #define _TIF_DO_NOTIFY_MASK						\
-	(_TIF_SIGPENDING|_TIF_SINGLESTEP|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED)
+	(_TIF_SIGPENDING|_TIF_MCE_NOTIFY|_TIF_HRTICK_RESCHED)
 
 /* flags to check in __switch_to() */
 #define _TIF_WORK_CTXSW							\