/* GNU/Linux/SH specific low level interface, for the remote server for GDB.
- Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2007,
- 2008 Free Software Foundation, Inc.
+ Copyright (C) 1995-2020 Free Software Foundation, Inc.
This file is part of GDB.
/* Defined in auto-generated file reg-sh.c. */
void init_registers_sh (void);
+extern const struct target_desc *tdesc_sh;
#ifdef HAVE_SYS_REG_H
#include <sys/reg.h>
return 0;
}
-static CORE_ADDR
-sh_get_pc ()
-{
- unsigned long pc;
- collect_register_by_name ("pc", &pc);
- return pc;
-}
-
-static void
-sh_set_pc (CORE_ADDR pc)
-{
- unsigned long newpc = pc;
- supply_register_by_name ("pc", &newpc);
-}
-
/* Correct in either endianness, obviously. */
static const unsigned short sh_breakpoint = 0xc3c3;
#define sh_breakpoint_len 2
+/* Implementation of linux_target_ops method "sw_breakpoint_from_kind". */
+
+static const gdb_byte *
+sh_sw_breakpoint_from_kind (int kind, int *size)
+{
+ *size = sh_breakpoint_len;
+ return (const gdb_byte *) &sh_breakpoint;
+}
+
static int
sh_breakpoint_at (CORE_ADDR where)
{
return 0;
}
+/* Support for hardware single step. */
+
+static int
+sh_supports_hardware_single_step (void)
+{
+ return 1;
+}
+
/* Provide only a fill function for the general register set. ps_lgetregs
will use this for NPTL support. */
-static void sh_fill_gregset (void *buf)
+static void sh_fill_gregset (struct regcache *regcache, void *buf)
{
int i;
for (i = 0; i < 23; i++)
if (sh_regmap[i] != -1)
- collect_register (i, (char *) buf + sh_regmap[i]);
+ collect_register (regcache, i, (char *) buf + sh_regmap[i]);
}
-struct regset_info target_regsets[] = {
- { 0, 0, 0, GENERAL_REGS, sh_fill_gregset, NULL },
- { 0, 0, -1, -1, NULL, NULL }
+static struct regset_info sh_regsets[] = {
+ { 0, 0, 0, 0, GENERAL_REGS, sh_fill_gregset, NULL },
+ NULL_REGSET
};
+static struct regsets_info sh_regsets_info =
+ {
+ sh_regsets, /* regsets */
+ 0, /* num_regsets */
+ NULL, /* disabled_regsets */
+ };
+
+static struct usrregs_info sh_usrregs_info =
+ {
+ sh_num_regs,
+ sh_regmap,
+ };
+
+static struct regs_info regs_info =
+ {
+ NULL, /* regset_bitmap */
+ &sh_usrregs_info,
+ &sh_regsets_info
+ };
+
+static const struct regs_info *
+sh_regs_info (void)
+{
+ return ®s_info;
+}
+
+static void
+sh_arch_setup (void)
+{
+ current_process ()->tdesc = tdesc_sh;
+}
+
struct linux_target_ops the_low_target = {
- init_registers_sh,
- sh_num_regs,
- sh_regmap,
+ sh_arch_setup,
+ sh_regs_info,
sh_cannot_fetch_register,
sh_cannot_store_register,
- sh_get_pc,
- sh_set_pc,
- (const unsigned char *) &sh_breakpoint,
- sh_breakpoint_len,
+ NULL, /* fetch_register */
+ linux_get_pc_32bit,
+ linux_set_pc_32bit,
+ NULL, /* breakpoint_kind_from_pc */
+ sh_sw_breakpoint_from_kind,
NULL,
0,
sh_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 */
+ sh_supports_hardware_single_step,
};
+
+void
+initialize_low_arch (void)
+{
+ init_registers_sh ();
+
+ initialize_regsets_info (&sh_regsets_info);
+}