#include "server.h"
#include "linux-low.h"
#include <sys/ptrace.h>
#define cris_num_regs 32
static int cris_regmap[] = {
15*4, 14*4, 13*4, 12*4,
11*4, 10*4, 9*4, 8*4,
7*4, 6*4, 5*4, 4*4,
3*4, 2*4, 23*4, 19*4,
-1, -1, -1, -1,
-1, 17*4, -1, 16*4,
-1, -1, -1, 18*4,
-1, 17*4, -1, -1
};
static int
cris_cannot_store_register (int regno)
{
if (cris_regmap[regno] == -1)
return 1;
return (regno >= cris_num_regs);
}
static int
cris_cannot_fetch_register (int regno)
{
if (cris_regmap[regno] == -1)
return 1;
return (regno >= cris_num_regs);
}
extern int debug_threads;
static CORE_ADDR
cris_get_pc (void)
{
unsigned long pc;
collect_register_by_name ("pc", &pc);
if (debug_threads)
fprintf (stderr, "stop pc is %08lx\n", pc);
return pc;
}
static void
cris_set_pc (CORE_ADDR pc)
{
unsigned long newpc = pc;
supply_register_by_name ("pc", &newpc);
}
static const unsigned short cris_breakpoint = 0xe938;
#define cris_breakpoint_len 2
static int
cris_breakpoint_at (CORE_ADDR where)
{
unsigned short insn;
(*the_target->read_memory) (where, (unsigned char *) &insn,
cris_breakpoint_len);
if (insn == cris_breakpoint)
return 1;
return 0;
}
static CORE_ADDR
cris_reinsert_addr (void)
{
unsigned long pc;
collect_register_by_name ("srp", &pc);
return pc;
}
struct linux_target_ops the_low_target = {
cris_num_regs,
cris_regmap,
cris_cannot_fetch_register,
cris_cannot_store_register,
cris_get_pc,
cris_set_pc,
(const unsigned char *) &cris_breakpoint,
cris_breakpoint_len,
cris_reinsert_addr,
0,
cris_breakpoint_at,
0,
0,
0,
0,
};