X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdbserver%2Flinux-tic6x-low.cc;h=09f974823ee00360f46d2f98a7a57f06cea529d5;hb=5fd104addfddb68844fb8df67be832ee98ad9888;hp=51a31c7876a248a221fdc034d175714461f3d738;hpb=feacfcacaac9f7e62f467a33c4ae54c56501ed18;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdbserver/linux-tic6x-low.cc b/gdbserver/linux-tic6x-low.cc
index 51a31c7876..09f974823e 100644
--- a/gdbserver/linux-tic6x-low.cc
+++ b/gdbserver/linux-tic6x-low.cc
@@ -38,6 +38,37 @@
 
 #include <asm/ptrace.h>
 
+/* Linux target op definitions for the TI C6x architecture.  */
+
+class tic6x_target : public linux_process_target
+{
+public:
+
+  const regs_info *get_regs_info () override;
+
+  const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override;
+
+protected:
+
+  void low_arch_setup () override;
+
+  bool low_cannot_fetch_register (int regno) override;
+
+  bool low_cannot_store_register (int regno) override;
+
+  bool low_supports_breakpoints () override;
+
+  CORE_ADDR low_get_pc (regcache *regcache) override;
+
+  void low_set_pc (regcache *regcache, CORE_ADDR newpc) override;
+
+  bool low_breakpoint_at (CORE_ADDR pc) override;
+};
+
+/* The singleton target ops object.  */
+
+static tic6x_target the_tic6x_target;
+
 /* Defined in auto-generated file tic6x-c64xp-linux.c.  */
 void init_registers_tic6x_c64xp_linux (void);
 extern const struct target_desc *tdesc_tic6x_c64xp_linux;
@@ -169,16 +200,14 @@ static int tic6x_regmap_c62x[] = {
 
 #endif
 
-extern struct linux_target_ops the_low_target;
-
 static int *tic6x_regmap;
 static unsigned int tic6x_breakpoint;
 #define tic6x_breakpoint_len 4
 
-/* Implementation of linux_target_ops method "sw_breakpoint_from_kind".  */
+/* Implementation of target ops method "sw_breakpoint_from_kind".  */
 
-static const gdb_byte *
-tic6x_sw_breakpoint_from_kind (int kind, int *size)
+const gdb_byte *
+tic6x_target::sw_breakpoint_from_kind (int kind, int *size)
 {
   *size = tic6x_breakpoint_len;
   return (const gdb_byte *) &tic6x_breakpoint;
@@ -206,20 +235,26 @@ tic6x_read_description (enum c6x_feature feature)
   return *tdesc;
 }
 
-static int
-tic6x_cannot_fetch_register (int regno)
+bool
+tic6x_target::low_cannot_fetch_register (int regno)
 {
   return (tic6x_regmap[regno] == -1);
 }
 
-static int
-tic6x_cannot_store_register (int regno)
+bool
+tic6x_target::low_cannot_store_register (int regno)
 {
   return (tic6x_regmap[regno] == -1);
 }
 
-static CORE_ADDR
-tic6x_get_pc (struct regcache *regcache)
+bool
+tic6x_target::low_supports_breakpoints ()
+{
+  return true;
+}
+
+CORE_ADDR
+tic6x_target::low_get_pc (regcache *regcache)
 {
   union tic6x_register pc;
 
@@ -227,8 +262,8 @@ tic6x_get_pc (struct regcache *regcache)
   return pc.reg32;
 }
 
-static void
-tic6x_set_pc (struct regcache *regcache, CORE_ADDR pc)
+void
+tic6x_target::low_set_pc (regcache *regcache, CORE_ADDR pc)
 {
   union tic6x_register newpc;
 
@@ -236,18 +271,18 @@ tic6x_set_pc (struct regcache *regcache, CORE_ADDR pc)
   supply_register_by_name (regcache, "PC", newpc.buf);
 }
 
-static int
-tic6x_breakpoint_at (CORE_ADDR where)
+bool
+tic6x_target::low_breakpoint_at (CORE_ADDR where)
 {
   unsigned int insn;
 
-  (*the_target->read_memory) (where, (unsigned char *) &insn, 4);
+  read_memory (where, (unsigned char *) &insn, 4);
   if (insn == tic6x_breakpoint)
-    return 1;
+    return true;
 
   /* If necessary, recognize more trap instructions here.  GDB only uses the
      one.  */
-  return 0;
+  return false;
 }
 
 /* Fetch the thread-local storage pointer for libthread_db.  */
@@ -314,8 +349,8 @@ static struct regset_info tic6x_regsets[] = {
   NULL_REGSET
 };
 
-static void
-tic6x_arch_setup (void)
+void
+tic6x_target::low_arch_setup ()
 {
   register unsigned int csr asm ("B2");
   unsigned int cpuid;
@@ -357,14 +392,6 @@ tic6x_arch_setup (void)
   current_process ()->tdesc = tic6x_read_description (feature);
 }
 
-/* Support for hardware single step.  */
-
-static int
-tic6x_supports_hardware_single_step (void)
-{
-  return 1;
-}
-
 static struct regsets_info tic6x_regsets_info =
   {
     tic6x_regsets, /* regsets */
@@ -372,57 +399,19 @@ static struct regsets_info tic6x_regsets_info =
     NULL, /* disabled_regsets */
   };
 
-static struct regs_info regs_info =
+static struct regs_info myregs_info =
   {
     NULL, /* regset_bitmap */
     &tic6x_usrregs_info,
     &tic6x_regsets_info
   };
 
-static const struct regs_info *
-tic6x_regs_info (void)
+const regs_info *
+tic6x_target::get_regs_info ()
 {
-  return &regs_info;
+  return &myregs_info;
 }
 
-struct linux_target_ops the_low_target = {
-  tic6x_arch_setup,
-  tic6x_regs_info,
-  tic6x_cannot_fetch_register,
-  tic6x_cannot_store_register,
-  NULL, /* fetch_register */
-  tic6x_get_pc,
-  tic6x_set_pc,
-  NULL, /* breakpoint_kind_from_pc */
-  tic6x_sw_breakpoint_from_kind,
-  NULL,
-  0,
-  tic6x_breakpoint_at,
-  NULL, /* supports_z_point_type */
-  NULL, /* insert_point */
-  NULL, /* remove_point */
-  NULL, /* stopped_by_watchpoint */
-  NULL, /* stopped_data_address */
-  NULL, /* collect_ptrace_register */
-  NULL, /* supply_ptrace_register */
-  NULL, /* siginfo_fixup */
-  NULL, /* new_process */
-  NULL, /* delete_process */
-  NULL, /* new_thread */
-  NULL, /* delete_thread */
-  NULL, /* new_fork */
-  NULL, /* prepare_to_resume */
-  NULL, /* process_qsupported */
-  NULL, /* supports_tracepoints */
-  NULL, /* get_thread_area */
-  NULL, /* install_fast_tracepoint_jump_pad */
-  NULL, /* emit_ops */
-  NULL, /* get_min_fast_tracepoint_insn_len */
-  NULL, /* supports_range_stepping */
-  NULL, /* breakpoint_kind_from_current_state */
-  tic6x_supports_hardware_single_step,
-};
-
 #if GDB_SELF_TEST
 #include "gdbsupport/selftest.h"
 
@@ -439,6 +428,10 @@ tic6x_tdesc_test ()
 }
 #endif
 
+/* The linux target ops object.  */
+
+linux_process_target *the_linux_target = &the_tic6x_target;
+
 void
 initialize_low_arch (void)
 {