gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdbserver / linux-aarch64-low.cc

diff --git a/gdbserver/linux-aarch64-low.cc b/gdbserver/linux-aarch64-low.cc
index 56bf027b888b1769fbebb8acefeea31076f7e5f8..08208ae4f4524a579b5f1bd7ea5afd2c103c9e24 100644 (file)
--- a/gdbserver/linux-aarch64-low.cc
+++ b/gdbserver/linux-aarch64-low.cc
@@ -65,6 +65,22 @@ public:
 
   bool supports_z_point_type (char z_type) override;
 
+  bool supports_tracepoints () override;
+
+  bool supports_fast_tracepoints () override;
+
+  int install_fast_tracepoint_jump_pad
+    (CORE_ADDR tpoint, CORE_ADDR tpaddr, CORE_ADDR collector,
+     CORE_ADDR lockaddr, ULONGEST orig_size, CORE_ADDR *jump_entry,
+     CORE_ADDR *trampoline, ULONGEST *trampoline_size,
+     unsigned char *jjump_pad_insn, ULONGEST *jjump_pad_insn_size,
+     CORE_ADDR *adjusted_insn_addr, CORE_ADDR *adjusted_insn_addr_end,
+     char *err) override;
+
+  int get_min_fast_tracepoint_insn_len () override;
+
+  struct emit_ops *emit_ops () override;
+
 protected:
 
   void low_arch_setup () override;
@@ -105,6 +121,14 @@ protected:
   void low_new_fork (process_info *parent, process_info *child) override;
 
   void low_prepare_to_resume (lwp_info *lwp) override;
+
+  int low_get_thread_area (int lwpid, CORE_ADDR *addrp) override;
+
+  bool low_supports_range_stepping () override;
+
+  bool low_supports_catch_syscall () override;
+
+  void low_get_syscall_trapinfo (regcache *regcache, int *sysno) override;
 };
 
 /* The singleton target ops object.  */
@@ -715,13 +739,13 @@ aarch64_target::get_regs_info ()
   return &regs_info_aarch64;
 }
 
-/* Implementation of linux_target_ops method "supports_tracepoints".  */
+/* Implementation of target ops method "supports_tracepoints".  */
 
-static int
-aarch64_supports_tracepoints (void)
+bool
+aarch64_target::supports_tracepoints ()
 {
   if (current_thread == NULL)
-    return 1;
+    return true;
   else
     {
       /* We don't support tracepoints on aarch32 now.  */
@@ -729,10 +753,10 @@ aarch64_supports_tracepoints (void)
     }
 }
 
-/* Implementation of linux_target_ops method "get_thread_area".  */
+/* Implementation of linux target ops method "low_get_thread_area".  */
 
-static int
-aarch64_get_thread_area (int lwpid, CORE_ADDR *addrp)
+int
+aarch64_target::low_get_thread_area (int lwpid, CORE_ADDR *addrp)
 {
   struct iovec iovec;
   uint64_t reg;
@@ -748,10 +772,16 @@ aarch64_get_thread_area (int lwpid, CORE_ADDR *addrp)
   return 0;
 }
 
-/* Implementation of linux_target_ops method "get_syscall_trapinfo".  */
+bool
+aarch64_target::low_supports_catch_syscall ()
+{
+  return true;
+}
+
+/* Implementation of linux target ops method "low_get_syscall_trapinfo".  */
 
-static void
-aarch64_get_syscall_trapinfo (struct regcache *regcache, int *sysno)
+void
+aarch64_target::low_get_syscall_trapinfo (regcache *regcache, int *sysno)
 {
   int use_64bit = register_size (regcache->tdesc, 0) == 8;
 
@@ -1958,23 +1988,23 @@ static const struct aarch64_insn_visitor visitor =
   aarch64_ftrace_insn_reloc_others,
 };
 
-/* Implementation of linux_target_ops method
+bool
+aarch64_target::supports_fast_tracepoints ()
+{
+  return true;
+}
+
+/* Implementation of target ops method
    "install_fast_tracepoint_jump_pad".  */
 
-static int
-aarch64_install_fast_tracepoint_jump_pad (CORE_ADDR tpoint,
-                                         CORE_ADDR tpaddr,
-                                         CORE_ADDR collector,
-                                         CORE_ADDR lockaddr,
-                                         ULONGEST orig_size,
-                                         CORE_ADDR *jump_entry,
-                                         CORE_ADDR *trampoline,
-                                         ULONGEST *trampoline_size,
-                                         unsigned char *jjump_pad_insn,
-                                         ULONGEST *jjump_pad_insn_size,
-                                         CORE_ADDR *adjusted_insn_addr,
-                                         CORE_ADDR *adjusted_insn_addr_end,
-                                         char *err)
+int
+aarch64_target::install_fast_tracepoint_jump_pad
+  (CORE_ADDR tpoint, CORE_ADDR tpaddr, CORE_ADDR collector,
+   CORE_ADDR lockaddr, ULONGEST orig_size, CORE_ADDR *jump_entry,
+   CORE_ADDR *trampoline, ULONGEST *trampoline_size,
+   unsigned char *jjump_pad_insn, ULONGEST *jjump_pad_insn_size,
+   CORE_ADDR *adjusted_insn_addr, CORE_ADDR *adjusted_insn_addr_end,
+   char *err)
 {
   uint32_t buf[256];
   uint32_t *p = buf;
@@ -3075,29 +3105,29 @@ static struct emit_ops aarch64_emit_ops_impl =
   aarch64_emit_ge_got,
 };
 
-/* Implementation of linux_target_ops method "emit_ops".  */
+/* Implementation of target ops method "emit_ops".  */
 
-static struct emit_ops *
-aarch64_emit_ops (void)
+emit_ops *
+aarch64_target::emit_ops ()
 {
   return &aarch64_emit_ops_impl;
 }
 
-/* Implementation of linux_target_ops method
+/* Implementation of target ops method
    "get_min_fast_tracepoint_insn_len".  */
 
-static int
-aarch64_get_min_fast_tracepoint_insn_len (void)
+int
+aarch64_target::get_min_fast_tracepoint_insn_len ()
 {
   return 4;
 }
 
-/* Implementation of linux_target_ops method "supports_range_stepping".  */
+/* Implementation of linux target ops method "low_supports_range_stepping".  */
 
-static int
-aarch64_supports_range_stepping (void)
+bool
+aarch64_target::low_supports_range_stepping ()
 {
-  return 1;
+  return true;
 }
 
 /* Implementation of target ops method "sw_breakpoint_from_kind".  */
@@ -3137,26 +3167,6 @@ aarch64_target::breakpoint_kind_from_current_state (CORE_ADDR *pcptr)
     return arm_breakpoint_kind_from_current_state (pcptr);
 }
 
-/* Support for hardware single step.  */
-
-static int
-aarch64_supports_hardware_single_step (void)
-{
-  return 1;
-}
-
-struct linux_target_ops the_low_target =
-{
-  aarch64_supports_tracepoints,
-  aarch64_get_thread_area,
-  aarch64_install_fast_tracepoint_jump_pad,
-  aarch64_emit_ops,
-  aarch64_get_min_fast_tracepoint_insn_len,
-  aarch64_supports_range_stepping,
-  aarch64_supports_hardware_single_step,
-  aarch64_get_syscall_trapinfo,
-};
-
 /* The linux target ops object.  */
 
 linux_process_target *the_linux_target = &the_aarch64_target;