This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-s390 / tracehook.h

diff --git a/include/asm-s390/tracehook.h b/include/asm-s390/tracehook.h
new file mode 100644 (file)
index 0000000..8fc8c38
--- /dev/null
+++ b/include/asm-s390/tracehook.h
@@ -0,0 +1,53 @@
+/*
+ * Tracing hooks, s390/s390x support.
+ */
+
+#ifndef _ASM_TRACEHOOK_H
+#define _ASM_TRACEHOOK_H       1
+
+#include <linux/sched.h>
+#include <asm/ptrace.h>
+
+/*
+ * See linux/tracehook.h for the descriptions of what these need to do.
+ */
+
+#define ARCH_HAS_SINGLE_STEP   (1)
+
+/* These three are defined in arch/s390/kernel/ptrace.c.  */
+void tracehook_enable_single_step(struct task_struct *tsk);
+void tracehook_disable_single_step(struct task_struct *tsk);
+int tracehook_single_step_enabled(struct task_struct *tsk);
+
+
+static inline void tracehook_enable_syscall_trace(struct task_struct *tsk)
+{
+       set_tsk_thread_flag(tsk, TIF_SYSCALL_TRACE);
+}
+
+static inline void tracehook_disable_syscall_trace(struct task_struct *tsk)
+{
+       clear_tsk_thread_flag(tsk, TIF_SYSCALL_TRACE);
+}
+
+static inline void tracehook_abort_syscall(struct pt_regs *regs)
+{
+       regs->gprs[2] = -1L;
+}
+
+
+extern const struct utrace_regset_view utrace_s390_native_view;
+static inline const struct utrace_regset_view *
+utrace_native_view(struct task_struct *tsk)
+{
+#ifdef CONFIG_COMPAT
+        extern const struct utrace_regset_view utrace_s390_compat_view;
+
+        if (test_tsk_thread_flag(tsk, TIF_31BIT))
+                return &utrace_s390_compat_view;
+#endif
+        return &utrace_s390_native_view;
+}
+
+
+#endif