#include <arch/abi.h>
#include "nat/gdb_ptrace.h"
+/* Linux target op definitions for the TILE-Gx architecture. */
+
+class tile_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 tile_target the_tile_target;
+
+bool
+tile_target::low_supports_breakpoints ()
+{
+ return true;
+}
+
+CORE_ADDR
+tile_target::low_get_pc (regcache *regcache)
+{
+ return linux_get_pc_64bit (regcache);
+}
+
+void
+tile_target::low_set_pc (regcache *regcache, CORE_ADDR pc)
+{
+ linux_set_pc_64bit (regcache, pc);
+}
+
/* Defined in auto-generated file reg-tilegx.c. */
void init_registers_tilegx (void);
extern const struct target_desc *tdesc_tilegx;
56
};
-static int
-tile_cannot_fetch_register (int regno)
+bool
+tile_target::low_cannot_fetch_register (int regno)
{
if (regno >= 0 && regno < 56)
- return 0;
+ return false;
else if (regno == 64)
- return 0;
+ return false;
else
- return 1;
+ return true;
}
-static int
-tile_cannot_store_register (int regno)
+bool
+tile_target::low_cannot_store_register (int regno)
{
if (regno >= 0 && regno < 56)
- return 0;
+ return false;
else if (regno == 64)
- return 0;
+ return false;
else
- return 1;
+ return true;
}
static uint64_t tile_breakpoint = 0x400b3cae70166000ULL;
#define tile_breakpoint_len 8
-/* Implementation of linux_target_ops method "sw_breakpoint_from_kind". */
+/* Implementation of target ops method "sw_breakpoint_from_kind". */
-static const gdb_byte *
-tile_sw_breakpoint_from_kind (int kind, int *size)
+const gdb_byte *
+tile_target::sw_breakpoint_from_kind (int kind, int *size)
{
*size = tile_breakpoint_len;
return (const gdb_byte *) &tile_breakpoint;
}
-static int
-tile_breakpoint_at (CORE_ADDR where)
+bool
+tile_target::low_breakpoint_at (CORE_ADDR where)
{
uint64_t insn;
- the_target->pt->read_memory (where, (unsigned char *) &insn, 8);
+ read_memory (where, (unsigned char *) &insn, 8);
if (insn == tile_breakpoint)
- return 1;
+ return true;
/* If necessary, recognize more trap instructions here. GDB only uses the
one. */
- return 0;
+ return false;
}
static void
tile_regmap,
};
-static struct regs_info regs_info =
+static struct regs_info myregs_info =
{
NULL, /* regset_bitmap */
&tile_usrregs_info,
&tile_regsets_info,
};
-static const struct regs_info *
-tile_regs_info (void)
+const regs_info *
+tile_target::get_regs_info ()
{
- return ®s_info;
+ return &myregs_info;
}
-static void
-tile_arch_setup (void)
+void
+tile_target::low_arch_setup ()
{
int pid = pid_of (current_thread);
unsigned int machine;
current_process ()->tdesc = tdesc_tilegx;
}
-/* Support for hardware single step. */
-
-static int
-tile_supports_hardware_single_step (void)
-{
- return 1;
-}
-
+/* The linux target ops object. */
-struct linux_target_ops the_low_target =
-{
- tile_arch_setup,
- tile_regs_info,
- tile_cannot_fetch_register,
- tile_cannot_store_register,
- NULL,
- linux_get_pc_64bit,
- linux_set_pc_64bit,
- NULL, /* breakpoint_kind_from_pc */
- tile_sw_breakpoint_from_kind,
- NULL,
- 0,
- tile_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 */
- tile_supports_hardware_single_step,
-};
+linux_process_target *the_linux_target = &the_tile_target;
void
initialize_low_arch (void)