u_addr = PT_MQ * 4;
if (regno == tdep->ppc_ps_regnum)
u_addr = PT_MSR * 4;
+ if (regno == tdep->ppc_fpscr_regnum)
+ u_addr = PT_FPSCR * 4;
return u_addr;
}
int i;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
- for (i = 0; i <= tdep->ppc_mq_regnum; i++)
+ for (i = 0; i <= tdep->ppc_fpscr_regnum; i++)
fetch_register (tid, i);
+ if (tdep->ppc_mq_regnum != -1)
+ fetch_register (tid, tdep->ppc_mq_regnum);
if (have_ptrace_getvrregs)
if (tdep->ppc_vr0_regnum != -1 && tdep->ppc_vrsave_regnum != -1)
fetch_altivec_registers (tid);
ptrace (PT_WRITE_U, tid, (PTRACE_ARG3_TYPE) regaddr,
*(PTRACE_XFER_TYPE *) & buf[i]);
regaddr += sizeof (PTRACE_XFER_TYPE);
+
+ if (errno == EIO
+ && regno == gdbarch_tdep (current_gdbarch)->ppc_fpscr_regnum)
+ {
+ /* Some older kernel versions don't allow fpscr to be written. */
+ continue;
+ }
+
if (errno != 0)
{
sprintf (mess, "writing register %s (#%d)",
int i;
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
- for (i = 0; i <= tdep->ppc_mq_regnum; i++)
+ for (i = 0; i <= tdep->ppc_fpscr_regnum; i++)
store_register (tid, i);
+ if (tdep->ppc_mq_regnum != -1)
+ store_register (tid, tdep->ppc_mq_regnum);
if (have_ptrace_getvrregs)
if (tdep->ppc_vr0_regnum != -1 && tdep->ppc_vrsave_regnum != -1)
store_altivec_registers (tid);
supply_register (tdep->ppc_cr_regnum, (char *) (regp + PT_CCR));
supply_register (tdep->ppc_xer_regnum, (char *) (regp + PT_XER));
supply_register (tdep->ppc_ctr_regnum, (char *) (regp + PT_CTR));
- supply_register (tdep->ppc_mq_regnum, (char *) (regp + PT_MQ));
+ if (tdep->ppc_mq_regnum != -1)
+ supply_register (tdep->ppc_mq_regnum, (char *) (regp + PT_MQ));
supply_register (tdep->ppc_ps_regnum, (char *) (regp + PT_MSR));
}
regcache_collect (tdep->ppc_xer_regnum, regp + PT_XER);
if ((regno == -1) || regno == tdep->ppc_ctr_regnum)
regcache_collect (tdep->ppc_ctr_regnum, regp + PT_CTR);
- if ((regno == -1) || regno == tdep->ppc_mq_regnum)
+ if (((regno == -1) || regno == tdep->ppc_mq_regnum)
+ && (tdep->ppc_mq_regnum != -1))
regcache_collect (tdep->ppc_mq_regnum, regp + PT_MQ);
if ((regno == -1) || regno == tdep->ppc_ps_regnum)
regcache_collect (tdep->ppc_ps_regnum, regp + PT_MSR);
supply_fpregset (gdb_fpregset_t * fpregsetp)
{
int regi;
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
for (regi = 0; regi < 32; regi++)
supply_register (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
+ supply_register (tdep->ppc_fpscr_regnum, (char *) (*fpregsetp + 32));
}
/* Given a pointer to a floating point register set in /proc format
fill_fpregset (gdb_fpregset_t *fpregsetp, int regno)
{
int regi;
+ struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
for (regi = 0; regi < 32; regi++)
{
if ((regno == -1) || (regno == FP0_REGNUM + regi))
regcache_collect (FP0_REGNUM + regi, (char *) (*fpregsetp + regi));
}
+ if ((regno == -1) || regno == tdep->ppc_fpscr_regnum)
+ regcache_collect (tdep->ppc_fpscr_regnum, (char *) (*fpregsetp + regi));
}