#include "defs.h"
#include "regcache.h"
#include "gdb_string.h"
#include "sparc-tdep.h"
#include "vx-share/ptrace.h"
#include "vx-share/regPacket.h"
#define SPARC_R_G1 (SPARC_R_G0 + SPARC_GREG_SIZE)
const struct sparc_gregset vxsparc_gregset =
{
SPARC_R_PSR,
SPARC_R_PC,
SPARC_R_NPC,
SPARC_R_Y,
SPARC_R_WIM,
SPARC_R_TBR,
SPARC_R_G1,
SPARC_R_I0
};
extern int target_has_fp;
extern void net_read_registers ();
extern void net_write_registers ();
void
vx_read_register (int regnum)
{
struct regcache *regcache = current_regcache;
char gregs[SPARC_GREG_PLEN];
char fpregs[SPARC_FPREG_PLEN];
CORE_ADDR sp;
net_read_registers (gregs, SPARC_GREG_PLEN, PTRACE_GETREGS);
sparc32_supply_gregset (&vxsparc_gregset, regcache, -1, gregs);
if (target_has_fp)
net_read_registers (fpregs, SPARC_FPREG_PLEN, PTRACE_GETFPREGS);
else
memset (fpregs, 0, SPARC_FPREG_PLEN);
sparc32_supply_fpregset (regcache, -1, fpregs);
}
void
vx_write_register (int regnum)
{
struct regcache *regcache = current_regcache;
char gregs[SPARC_GREG_PLEN];
char fpregs[SPARC_FPREG_PLEN];
int gregs_p = 1;
int fpregs_p = 1;
CORE_ADDR sp;
if (regnum != -1)
{
if ((SPARC_G0_REGNUM <= regnum && regnum <= SPARC_I7_REGNUM)
|| (SPARC32_Y_REGNUM <= regnum && regnum <= SPARC32_NPC_REGNUM))
fpregs_p = 0;
else
gregs_p = 0;
}
if (gregs_p)
{
sparc32_collect_gregset (&vxsparc_gregset, regcache, -1, gregs);
net_write_registers (gregs, SPARC_GREG_PLEN, PTRACE_SETREGS);
if (regnum == -1 || regnum == SPARC_SP_REGNUM
|| (regnum >= SPARC_L0_REGNUM && regnum <= SPARC_I7_REGNUM))
{
ULONGEST sp;
regcache_cooked_read_unsigned (regcache, SPARC_SP_REGNUM, &sp);
sparc_collect_rwindow (regcache, sp, regnum);
}
}
if (fpregs_p && target_has_fp)
{
sparc32_collect_fpregset (regcache, -1, fpregs);
net_write_registers (fpregs, SPARC_FPREG_PLEN, PTRACE_SETFPREGS);
}
}