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-rw-r--r--arch/i386/kernel/ptrace.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c
index 340980203b0..7b6368bf897 100644
--- a/arch/i386/kernel/ptrace.c
+++ b/arch/i386/kernel/ptrace.c
@@ -694,17 +694,22 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
__attribute__((regparm(3)))
int do_syscall_trace(struct pt_regs *regs, int entryexit)
{
- int is_sysemu = test_thread_flag(TIF_SYSCALL_EMU), ret = 0;
- /* With TIF_SYSCALL_EMU set we want to ignore TIF_SINGLESTEP for syscall
- * interception. */
+ int is_sysemu = test_thread_flag(TIF_SYSCALL_EMU);
+ /*
+ * With TIF_SYSCALL_EMU set we want to ignore TIF_SINGLESTEP for syscall
+ * interception
+ */
int is_singlestep = !is_sysemu && test_thread_flag(TIF_SINGLESTEP);
+ int ret = 0;
/* do the secure computing check first */
- secure_computing(regs->orig_eax);
+ if (!entryexit)
+ secure_computing(regs->orig_eax);
if (unlikely(current->audit_context)) {
if (entryexit)
- audit_syscall_exit(current, AUDITSC_RESULT(regs->eax), regs->eax);
+ audit_syscall_exit(current, AUDITSC_RESULT(regs->eax),
+ regs->eax);
/* Debug traps, when using PTRACE_SINGLESTEP, must be sent only
* on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is
* not used, entry.S will call us only on syscall exit, not
@@ -738,7 +743,7 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
/* the 0x80 provides a way for the tracing parent to distinguish
between a syscall stop and SIGTRAP delivery */
/* Note that the debugger could change the result of test_thread_flag!*/
- ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80 : 0));
+ ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80:0));
/*
* this isn't the same as continuing with a signal, but it will do
@@ -750,7 +755,7 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
current->exit_code = 0;
}
ret = is_sysemu;
- out:
+out:
if (unlikely(current->audit_context) && !entryexit)
audit_syscall_entry(current, AUDIT_ARCH_I386, regs->orig_eax,
regs->ebx, regs->ecx, regs->edx, regs->esi);
@@ -759,6 +764,7 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit)
regs->orig_eax = -1; /* force skip of syscall restarting */
if (unlikely(current->audit_context))
- audit_syscall_exit(current, AUDITSC_RESULT(regs->eax), regs->eax);
+ audit_syscall_exit(current, AUDITSC_RESULT(regs->eax),
+ regs->eax);
return 1;
}