gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdbserver / linux-arm-low.cc

diff --git a/gdbserver/linux-arm-low.cc b/gdbserver/linux-arm-low.cc
index 942f26302365944e7bce36f90cdf20a7965af507..fb5b761a833aea343563b3c45770969658b95083 100644 (file)
--- a/gdbserver/linux-arm-low.cc
+++ b/gdbserver/linux-arm-low.cc
@@ -72,6 +72,8 @@ public:
 
   bool supports_z_point_type (char z_type) override;
 
+  bool supports_hardware_single_step () override;
+
 protected:
 
   void low_arch_setup () override;
@@ -111,6 +113,10 @@ protected:
   void low_new_fork (process_info *parent, process_info *child) override;
 
   void low_prepare_to_resume (lwp_info *lwp) override;
+
+  bool low_supports_catch_syscall () override;
+
+  void low_get_syscall_trapinfo (regcache *regcache, int *sysno) override;
 };
 
 /* The singleton target ops object.  */
@@ -1030,16 +1036,22 @@ arm_target::low_get_next_pcs (regcache *regcache)
 
 /* Support for hardware single step.  */
 
-static int
-arm_supports_hardware_single_step (void)
+bool
+arm_target::supports_hardware_single_step ()
+{
+  return false;
+}
+
+bool
+arm_target::low_supports_catch_syscall ()
 {
-  return 0;
+  return true;
 }
 
-/* Implementation of linux_target_ops method "get_syscall_trapinfo".  */
+/* Implementation of linux target ops method "low_get_syscall_trapinfo".  */
 
-static void
-arm_get_syscall_trapinfo (struct regcache *regcache, int *sysno)
+void
+arm_target::low_get_syscall_trapinfo (regcache *regcache, int *sysno)
 {
   if (arm_is_thumb_mode ())
     collect_register_by_name (regcache, "r7", sysno);
@@ -1050,7 +1062,7 @@ arm_get_syscall_trapinfo (struct regcache *regcache, int *sysno)
 
       collect_register_by_name (regcache, "pc", &pc);
 
-      if (the_target->read_memory (pc - 4, (unsigned char *) &insn, 4))
+      if (read_memory (pc - 4, (unsigned char *) &insn, 4))
        *sysno = UNKNOWN_SYSCALL;
       else
        {
@@ -1116,13 +1128,6 @@ arm_target::get_regs_info ()
   return &regs_info_arm;
 }
 
-struct linux_target_ops the_low_target = {
-  NULL, /* emit_ops */
-  NULL, /* supports_range_stepping */
-  arm_supports_hardware_single_step,
-  arm_get_syscall_trapinfo,
-};
-
 /* The linux target ops object.  */
 
 linux_process_target *the_linux_target = &the_arm_target;