#include "linux-low.h"
#include "nat/gdb_ptrace.h"
+/* Linux target op definitions for the CRIS architecture. */
+
+class crisv32_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;
+
+ bool supports_z_point_type (char z_type) 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;
+
+ int low_insert_point (raw_bkpt_type type, CORE_ADDR addr,
+ int size, raw_breakpoint *bp) override;
+
+ int low_remove_point (raw_bkpt_type type, CORE_ADDR addr,
+ int size, raw_breakpoint *bp) override;
+
+ bool low_stopped_by_watchpoint () override;
+
+ CORE_ADDR low_stopped_data_address () override;
+};
+
+/* The singleton target ops object. */
+
+static crisv32_target the_crisv32_target;
+
+bool
+crisv32_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
+crisv32_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
+crisv32_target::low_supports_breakpoints ()
+{
+ return true;
+}
+
+CORE_ADDR
+crisv32_target::low_get_pc (regcache *regcache)
+{
+ return linux_get_pc_32bit (regcache);
+}
+
+void
+crisv32_target::low_set_pc (regcache *regcache, CORE_ADDR pc)
+{
+ linux_set_pc_32bit (regcache, pc);
+}
+
/* Defined in auto-generated file reg-crisv32.c. */
void init_registers_crisv32 (void);
extern const struct target_desc *tdesc_crisv32;
static const unsigned short cris_breakpoint = 0xe938;
#define cris_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 *
-cris_sw_breakpoint_from_kind (int kind, int *size)
+const gdb_byte *
+crisv32_target::sw_breakpoint_from_kind (int kind, int *size)
{
*size = cris_breakpoint_len;
return (const gdb_byte *) &cris_breakpoint;
}
-static int
-cris_breakpoint_at (CORE_ADDR where)
+bool
+crisv32_target::low_breakpoint_at (CORE_ADDR where)
{
unsigned short insn;
- the_target->pt->read_memory (where, (unsigned char *) &insn,
- cris_breakpoint_len);
+ read_memory (where, (unsigned char *) &insn, cris_breakpoint_len);
if (insn == cris_breakpoint)
- return 1;
+ return true;
/* If necessary, recognize more trap instructions here. GDB only uses the
one. */
- return 0;
+ return false;
}
static void
}
}
-static int
-cris_supports_z_point_type (char z_type)
+bool
+crisv32_target::supports_z_point_type (char z_type)
{
switch (z_type)
{
case Z_PACKET_WRITE_WP:
case Z_PACKET_READ_WP:
case Z_PACKET_ACCESS_WP:
- return 1;
+ return true;
default:
- return 0;
+ return false;
}
}
-static int
-cris_insert_point (enum raw_bkpt_type type, CORE_ADDR addr,
- int len, struct raw_breakpoint *bp)
+int
+crisv32_target::low_insert_point (raw_bkpt_type type, CORE_ADDR addr,
+ int len, raw_breakpoint *bp)
{
int bp;
unsigned long bp_ctrl;
return 0;
}
-static int
-cris_remove_point (enum raw_bkpt_type type, CORE_ADDR addr, int len,
- struct raw_breakpoint *bp)
+int
+crisv32_target::low_remove_point (raw_bkpt_type type, CORE_ADDR addr,
+ int len, raw_breakpoint *bp)
{
int bp;
unsigned long bp_ctrl;
return 0;
}
-static int
-cris_stopped_by_watchpoint (void)
+bool
+crisv32_target::low_stopped_by_watchpoint ()
{
unsigned long exs;
struct regcache *regcache = get_thread_regcache (current_thread, 1);
return (((exs & 0xff00) >> 8) == 0xc);
}
-static CORE_ADDR
-cris_stopped_data_address (void)
+CORE_ADDR
+crisv32_target::low_stopped_data_address ()
{
unsigned long eda;
struct regcache *regcache = get_thread_regcache (current_thread, 1);
}
}
-static void
-cris_arch_setup (void)
+void
+crisv32_target::low_arch_setup ()
{
current_process ()->tdesc = tdesc_crisv32;
}
-/* Support for hardware single step. */
-
-static int
-cris_supports_hardware_single_step (void)
-{
- return 1;
-}
-
static struct regset_info cris_regsets[] = {
{ PTRACE_GETREGS, PTRACE_SETREGS, 0, cris_num_regs * 4,
GENERAL_REGS, cris_fill_gregset, cris_store_gregset },
cris_regmap,
};
-static struct regs_info regs_info =
+static struct regs_info myregs_info =
{
NULL, /* regset_bitmap */
&cris_usrregs_info,
&cris_regsets_info
};
-static const struct regs_info *
-cris_regs_info (void)
+const regs_info *
+crisv32_target::get_regs_info ()
{
- return ®s_info;
+ return &myregs_info;
}
-struct linux_target_ops the_low_target = {
- cris_arch_setup,
- cris_regs_info,
- NULL,
- NULL,
- NULL, /* fetch_register */
- linux_get_pc_32bit,
- linux_set_pc_32bit,
- NULL, /* breakpoint_kind_from_pc */
- cris_sw_breakpoint_from_kind,
- NULL, /* get_next_pcs */
- 0,
- cris_breakpoint_at,
- cris_supports_z_point_type,
- cris_insert_point,
- cris_remove_point,
- cris_stopped_by_watchpoint,
- cris_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 */
- cris_supports_hardware_single_step,
-};
+/* The linux target ops object. */
+
+linux_process_target *the_linux_target = &the_crisv32_target;
void
initialize_low_arch (void)
projects / deliverable / binutils-gdb.git / blobdiff