diff options
Diffstat (limited to 'arch/sparc/kernel/ptrace_64.c')
| -rw-r--r-- | arch/sparc/kernel/ptrace_64.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c index 7ff45e4ba68..c13c9f25d83 100644 --- a/arch/sparc/kernel/ptrace_64.c +++ b/arch/sparc/kernel/ptrace_64.c @@ -14,6 +14,7 @@ #include <linux/sched.h> #include <linux/mm.h> #include <linux/errno.h> +#include <linux/export.h> #include <linux/ptrace.h> #include <linux/user.h> #include <linux/smp.h> @@ -26,6 +27,7 @@ #include <trace/syscall.h> #include <linux/compat.h> #include <linux/elf.h> +#include <linux/context_tracking.h> #include <asm/asi.h> #include <asm/pgtable.h> @@ -116,6 +118,7 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, preempt_enable(); } +EXPORT_SYMBOL_GPL(flush_ptrace_access); static int get_from_target(struct task_struct *target, unsigned long uaddr, void *kbuf, int len) @@ -1064,6 +1067,9 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) /* do the secure computing check first */ secure_computing_strict(regs->u_regs[UREG_G1]); + if (test_thread_flag(TIF_NOHZ)) + user_exit(); + if (test_thread_flag(TIF_SYSCALL_TRACE)) ret = tracehook_report_syscall_entry(regs); @@ -1084,11 +1090,17 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) asmlinkage void syscall_trace_leave(struct pt_regs *regs) { + if (test_thread_flag(TIF_NOHZ)) + user_exit(); + audit_syscall_exit(regs); if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) - trace_sys_exit(regs, regs->u_regs[UREG_G1]); + trace_sys_exit(regs, regs->u_regs[UREG_I0]); if (test_thread_flag(TIF_SYSCALL_TRACE)) tracehook_report_syscall_exit(regs, 0); + + if (test_thread_flag(TIF_NOHZ)) + user_enter(); } |