/* Target dependent code for GDB on TI C6x systems.
- Copyright (C) 2010-2012 Free Software Foundation, Inc.
+ Copyright (C) 2010-2015 Free Software Foundation, Inc.
Contributed by Andrew Jenner <andrew@codesourcery.com>
Contributed by Yao Qi <yao@codesourcery.com>
#include "server.h"
#include "linux-low.h"
-#include <sys/ptrace.h>
+#include "nat/gdb_ptrace.h"
#include <endian.h>
#include "gdb_proc_service.h"
/* 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;
+
/* Defined in auto-generated file tic6x-c64x-linux.c. */
void init_registers_tic6x_c64x_linux (void);
+extern const struct target_desc *tdesc_tic6x_c64x_linux;
+
/* Defined in auto-generated file tic62x-c6xp-linux.c. */
void init_registers_tic6x_c62x_linux (void);
+extern const struct target_desc *tdesc_tic6x_c62x_linux;
union tic6x_register
{
static int *tic6x_regmap;
static unsigned int tic6x_breakpoint;
+#define tic6x_breakpoint_len 4
-static void
-tic6x_arch_setup (void)
+/* Implementation of linux_target_ops method "sw_breakpoint_from_kind". */
+
+static const gdb_byte *
+tic6x_sw_breakpoint_from_kind (int kind, int *size)
+{
+ *size = tic6x_breakpoint_len;
+ return (const gdb_byte *) &tic6x_breakpoint;
+}
+
+/* Forward definition. */
+static struct usrregs_info tic6x_usrregs_info;
+
+static const struct target_desc *
+tic6x_read_description (void)
{
register unsigned int csr asm ("B2");
unsigned int cpuid;
+ const struct target_desc *tdesc;
/* Determine the CPU we're running on to find the register order. */
__asm__ ("MVC .S2 CSR,%0" : "=r" (csr) :);
case 0x02: /* C67x */
tic6x_regmap = tic6x_regmap_c62x;
tic6x_breakpoint = 0x0000a122; /* BNOP .S2 0,5 */
- init_registers_tic6x_c62x_linux ();
+ tdesc = tdesc_tic6x_c62x_linux;
break;
case 0x03: /* C67x+ */
tic6x_regmap = tic6x_regmap_c64x;
tic6x_breakpoint = 0x0000a122; /* BNOP .S2 0,5 */
- init_registers_tic6x_c64x_linux ();
+ tdesc = tdesc_tic6x_c64x_linux;
break;
case 0x0c: /* C64x */
tic6x_regmap = tic6x_regmap_c64x;
tic6x_breakpoint = 0x0000a122; /* BNOP .S2 0,5 */
- init_registers_tic6x_c64x_linux ();
+ tdesc = tdesc_tic6x_c64x_linux;
break;
case 0x10: /* C64x+ */
case 0x14: /* C674x */
case 0x15: /* C66x */
tic6x_regmap = tic6x_regmap_c64xp;
tic6x_breakpoint = 0x56454314; /* illegal opcode */
- init_registers_tic6x_c64xp_linux ();
+ tdesc = tdesc_tic6x_c64xp_linux;
break;
default:
error ("Unknown CPU ID 0x%02x", cpuid);
}
- the_low_target.regmap = tic6x_regmap;
+ tic6x_usrregs_info.regmap = tic6x_regmap;
+ return tdesc;
}
static int
supply_register_by_name (regcache, "PC", newpc.buf);
}
-#define tic6x_breakpoint_len 4
-
static int
tic6x_breakpoint_at (CORE_ADDR where)
{
tic6x_supply_register (regcache, i, regset + tic6x_regmap[i]);
}
-struct regset_info target_regsets[] = {
+static struct regset_info tic6x_regsets[] = {
{ PTRACE_GETREGS, PTRACE_SETREGS, 0, TIC6X_NUM_REGS * 4, GENERAL_REGS,
tic6x_fill_gregset, tic6x_store_gregset },
- { 0, 0, 0, -1, -1, NULL, NULL }
+ NULL_REGSET
};
+static void
+tic6x_arch_setup (void)
+{
+ current_process ()->tdesc = tic6x_read_description ();
+}
+
+static struct regsets_info tic6x_regsets_info =
+ {
+ tic6x_regsets, /* regsets */
+ 0, /* num_regsets */
+ NULL, /* disabled_regsets */
+ };
+
+static struct usrregs_info tic6x_usrregs_info =
+ {
+ TIC6X_NUM_REGS,
+ NULL, /* Set in tic6x_read_description. */
+ };
+
+static struct regs_info regs_info =
+ {
+ NULL, /* regset_bitmap */
+ &tic6x_usrregs_info,
+ &tic6x_regsets_info
+ };
+
+static const struct regs_info *
+tic6x_regs_info (void)
+{
+ return ®s_info;
+}
+
struct linux_target_ops the_low_target = {
tic6x_arch_setup,
- TIC6X_NUM_REGS,
- 0,
- NULL,
+ tic6x_regs_info,
tic6x_cannot_fetch_register,
tic6x_cannot_store_register,
NULL, /* fetch_register */
tic6x_get_pc,
tic6x_set_pc,
- (const unsigned char *) &tic6x_breakpoint,
- tic6x_breakpoint_len,
+ NULL, /* breakpoint_kind_from_pc */
+ tic6x_sw_breakpoint_from_kind,
NULL,
0,
tic6x_breakpoint_at,
};
+
+void
+initialize_low_arch (void)
+{
+ /* Initialize the Linux target descriptions. */
+ init_registers_tic6x_c64xp_linux ();
+ init_registers_tic6x_c64x_linux ();
+ init_registers_tic6x_c62x_linux ();
+
+ initialize_regsets_info (&tic6x_regsets_info);
+}