#include "server.h"
#include "linux-low.h"
+/* Linux target op definitions for the Xtensa architecture. */
+
+class xtensa_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 xtensa_target the_xtensa_target;
+
+bool
+xtensa_target::low_cannot_fetch_register (int regno)
+{
+ gdb_assert_not_reached ("linux target op low_cannot_fetch_register "
+ "is not implemented by the target");
+}
+
+bool
+xtensa_target::low_cannot_store_register (int regno)
+{
+ gdb_assert_not_reached ("linux target op low_cannot_store_register "
+ "is not implemented by the target");
+}
+
+bool
+xtensa_target::low_supports_breakpoints ()
+{
+ return true;
+}
+
+CORE_ADDR
+xtensa_target::low_get_pc (regcache *regcache)
+{
+ return linux_get_pc_32bit (regcache);
+}
+
+void
+xtensa_target::low_set_pc (regcache *regcache, CORE_ADDR pc)
+{
+ linux_set_pc_32bit (regcache, pc);
+}
+
/* Defined in auto-generated file reg-xtensa.c. */
void init_registers_xtensa (void);
extern const struct target_desc *tdesc_xtensa;
static const gdb_byte xtensa_breakpoint[] = XTENSA_BREAKPOINT;
#define xtensa_breakpoint_len 2
-/* Implementation of linux_target_ops method "sw_breakpoint_from_kind". */
+/* Implementation of target ops method "sw_breakpoint_from_kind". */
-static const gdb_byte *
-xtensa_sw_breakpoint_from_kind (int kind, int *size)
+const gdb_byte *
+xtensa_target::sw_breakpoint_from_kind (int kind, int *size)
{
*size = xtensa_breakpoint_len;
return xtensa_breakpoint;
}
-static int
-xtensa_breakpoint_at (CORE_ADDR where)
+bool
+xtensa_target::low_breakpoint_at (CORE_ADDR where)
{
unsigned long insn;
- the_target->read_memory (where, (unsigned char *) &insn,
- xtensa_breakpoint_len);
+ read_memory (where, (unsigned char *) &insn, xtensa_breakpoint_len);
return memcmp((char *) &insn,
xtensa_breakpoint, xtensa_breakpoint_len) == 0;
}
NULL, /* disabled_regsets */
};
-static struct regs_info regs_info =
+static struct regs_info myregs_info =
{
NULL, /* regset_bitmap */
NULL, /* usrregs */
&xtensa_regsets_info
};
-static void
-xtensa_arch_setup (void)
+void
+xtensa_target::low_arch_setup ()
{
current_process ()->tdesc = tdesc_xtensa;
}
return 1;
}
-static const struct regs_info *
-xtensa_regs_info (void)
+const regs_info *
+xtensa_target::get_regs_info ()
{
- return ®s_info;
+ return &myregs_info;
}
struct linux_target_ops the_low_target = {
- xtensa_arch_setup,
- xtensa_regs_info,
- 0,
- 0,
- NULL, /* fetch_register */
- linux_get_pc_32bit,
- linux_set_pc_32bit,
- NULL, /* breakpoint_kind_from_pc */
- xtensa_sw_breakpoint_from_kind,
- NULL,
- 0,
- xtensa_breakpoint_at,
NULL, /* supports_z_point_type */
NULL, /* insert_point */
NULL, /* remove_point */
NULL, /* emit_ops */
NULL, /* get_min_fast_tracepoint_insn_len */
NULL, /* supports_range_stepping */
- NULL, /* breakpoint_kind_from_current_state */
xtensa_supports_hardware_single_step,
};
+/* The linux target ops object. */
+
+linux_process_target *the_linux_target = &the_xtensa_target;
void
initialize_low_arch (void)