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authorGlauber de Oliveira Costa <gcosta@redhat.com>2008-01-30 13:31:27 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:31:27 +0100
commit053de044411111da00272d1b4e174e7dd743f499 (patch)
treebe44ae9b0ed878df7b83daa39bb89e01f3fdbe73 /arch
parent73018a66e70fa631935192e5ed6ef8fa2d20b22d (diff)
x86: get rid of _MASK flags
There's no need for the *_MASK flags (TF_MASK, IF_MASK, etc), found in processor.h (both _32 and _64). They have a one-to-one mapping with the EFLAGS value. This patch removes the definitions, and use the already existent X86_EFLAGS_ version when applicable. [ roland@redhat.com: KVM build fixes. ] Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/ia32/ia32_signal.c4
-rw-r--r--arch/x86/kernel/kprobes.c18
-rw-r--r--arch/x86/kernel/signal_64.c4
-rw-r--r--arch/x86/kernel/traps_64.c2
4 files changed, 14 insertions, 14 deletions
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index d03d43f32f4..0e24e3fda3d 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -501,7 +501,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
regs->ss = __USER32_DS;
set_fs(USER_DS);
- regs->flags &= ~TF_MASK;
+ regs->flags &= ~X86_EFLAGS_TF;
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
@@ -601,7 +601,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
regs->ss = __USER32_DS;
set_fs(USER_DS);
- regs->flags &= ~TF_MASK;
+ regs->flags &= ~X86_EFLAGS_TF;
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c
index 9aadd4d4a22..8de82c8cedd 100644
--- a/arch/x86/kernel/kprobes.c
+++ b/arch/x86/kernel/kprobes.c
@@ -387,9 +387,9 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
{
__get_cpu_var(current_kprobe) = p;
kcb->kprobe_saved_flags = kcb->kprobe_old_flags
- = (regs->flags & (TF_MASK | IF_MASK));
+ = (regs->flags & (X86_EFLAGS_TF | X86_EFLAGS_IF));
if (is_IF_modifier(p->ainsn.insn))
- kcb->kprobe_saved_flags &= ~IF_MASK;
+ kcb->kprobe_saved_flags &= ~X86_EFLAGS_IF;
}
static __always_inline void clear_btf(void)
@@ -407,8 +407,8 @@ static __always_inline void restore_btf(void)
static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
{
clear_btf();
- regs->flags |= TF_MASK;
- regs->flags &= ~IF_MASK;
+ regs->flags |= X86_EFLAGS_TF;
+ regs->flags &= ~X86_EFLAGS_IF;
/*single step inline if the instruction is an int3*/
if (p->opcode == BREAKPOINT_INSTRUCTION)
regs->ip = (unsigned long)p->addr;
@@ -454,7 +454,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
if (p) {
if (kcb->kprobe_status == KPROBE_HIT_SS &&
*p->ainsn.insn == BREAKPOINT_INSTRUCTION) {
- regs->flags &= ~TF_MASK;
+ regs->flags &= ~X86_EFLAGS_TF;
regs->flags |= kcb->kprobe_saved_flags;
goto no_kprobe;
#ifdef CONFIG_X86_64
@@ -749,10 +749,10 @@ static void __kprobes resume_execution(struct kprobe *p,
insn++;
#endif
- regs->flags &= ~TF_MASK;
+ regs->flags &= ~X86_EFLAGS_TF;
switch (*insn) {
case 0x9c: /* pushfl */
- *tos &= ~(TF_MASK | IF_MASK);
+ *tos &= ~(X86_EFLAGS_TF | X86_EFLAGS_IF);
*tos |= kcb->kprobe_old_flags;
break;
case 0xc2: /* iret/ret/lret */
@@ -852,7 +852,7 @@ out:
* will have TF set, in which case, continue the remaining processing
* of do_debug, as if this is not a probe hit.
*/
- if (regs->flags & TF_MASK)
+ if (regs->flags & X86_EFLAGS_TF)
return 0;
return 1;
@@ -982,7 +982,7 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
*/
memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr,
MIN_STACK_SIZE(addr));
- regs->flags &= ~IF_MASK;
+ regs->flags &= ~X86_EFLAGS_IF;
trace_hardirqs_off();
regs->ip = (unsigned long)(jp->entry);
return 1;
diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 1c9bca56fb5..4eb751c6039 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -295,7 +295,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
see include/asm-x86_64/uaccess.h for details. */
set_fs(USER_DS);
- regs->flags &= ~TF_MASK;
+ regs->flags &= ~X86_EFLAGS_TF;
if (test_thread_flag(TIF_SINGLESTEP))
ptrace_notify(SIGTRAP);
#ifdef DEBUG_SIG
@@ -463,7 +463,7 @@ do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
/* Pending single-step? */
if (thread_info_flags & _TIF_SINGLESTEP) {
- regs->flags |= TF_MASK;
+ regs->flags |= X86_EFLAGS_TF;
clear_thread_flag(TIF_SINGLESTEP);
}
diff --git a/arch/x86/kernel/traps_64.c b/arch/x86/kernel/traps_64.c
index cf90ceb48f5..7118fa0320a 100644
--- a/arch/x86/kernel/traps_64.c
+++ b/arch/x86/kernel/traps_64.c
@@ -904,7 +904,7 @@ clear_dr7:
clear_TF_reenable:
set_tsk_thread_flag(tsk, TIF_SINGLESTEP);
- regs->flags &= ~TF_MASK;
+ regs->flags &= ~X86_EFLAGS_TF;
preempt_conditional_cli(regs);
}