Example #1
0
static void
amd64bsd_fetch_inferior_registers (struct target_ops *ops,
				   struct regcache *regcache, int regnum)
{
  struct gdbarch *gdbarch = get_regcache_arch (regcache);

  if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
    {
      struct reg regs;

      if (ptrace (PT_GETREGS, ptid_get_pid (inferior_ptid),
		  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
	perror_with_name (_("Couldn't get registers"));

      amd64_supply_native_gregset (regcache, &regs, -1);
      if (regnum != -1)
	return;
    }

  if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
    {
      struct fpreg fpregs;

      if (ptrace (PT_GETFPREGS, ptid_get_pid (inferior_ptid),
		  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't get floating point status"));

      amd64_supply_fxsave (regcache, -1, &fpregs);
    }
}
static void
amd64_linux_fetch_inferior_registers (int regnum)
{
  int tid;

  /* GNU/Linux LWP ID's are process ID's.  */
  tid = TIDGET (inferior_ptid);
  if (tid == 0)
    tid = PIDGET (inferior_ptid); /* Not a threaded program.  */

  if (regnum == -1 || amd64_native_gregset_supplies_p (regnum))
    {
      elf_gregset_t regs;

      if (ptrace (PTRACE_GETREGS, tid, 0, (long) &regs) < 0)
	perror_with_name (_("Couldn't get registers"));

      amd64_supply_native_gregset (current_regcache, &regs, -1);
      if (regnum != -1)
	return;
    }

  if (regnum == -1 || !amd64_native_gregset_supplies_p (regnum))
    {
      elf_fpregset_t fpregs;

      if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
	perror_with_name (_("Couldn't get floating point status"));

      amd64_supply_fxsave (current_regcache, -1, &fpregs);
    }
}
Example #3
0
void
fetch_inferior_registers (int regnum)
{
  if (regnum == -1 || amd64_native_gregset_supplies_p (regnum))
    {
      struct reg regs;

      if (ptrace (PT_GETREGS, PIDGET (inferior_ptid),
		  (PTRACE_ARG3_TYPE) &regs, 0) == -1)
	perror_with_name ("Couldn't get registers");

      amd64_supply_native_gregset (current_regcache, &regs, -1);
      if (regnum != -1)
	return;
    }

  if (regnum == -1 || regnum >= AMD64_ST0_REGNUM)
    {
      struct fpreg fpregs;

      if (ptrace (PT_GETFPREGS, PIDGET (inferior_ptid),
		  (PTRACE_ARG3_TYPE) &fpregs, 0) == -1)
	perror_with_name ("Couldn't get floating point status");

      amd64_supply_fxsave (current_regcache, -1, &fpregs);
    }
}
Example #4
0
static void
amd64_supply_fpregset (const struct regset *regset, struct regcache *regcache,
		       int regnum, const void *fpregs, size_t len)
{
  const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);

  gdb_assert (len == tdep->sizeof_fpregset);
  amd64_supply_fxsave (regcache, regnum, fpregs);
}
Example #5
0
static void
amd64obsd_supply_regset (const struct regset *regset,
			 struct regcache *regcache, int regnum,
			 const void *regs, size_t len)
{
  const struct gdbarch_tdep *tdep = gdbarch_tdep (regset->arch);

  gdb_assert (len >= tdep->sizeof_gregset + I387_SIZEOF_FXSAVE);

  i386_supply_gregset (regset, regcache, regnum, regs, tdep->sizeof_gregset);
  amd64_supply_fxsave (regcache, regnum,
		       ((const gdb_byte *)regs) + tdep->sizeof_gregset);
}
Example #6
0
static void
amd64_linux_fetch_inferior_registers (struct target_ops *ops,
				      struct regcache *regcache, int regnum)
{
  struct gdbarch *gdbarch = get_regcache_arch (regcache);
  int tid;

  /* GNU/Linux LWP ID's are process ID's.  */
  tid = ptid_get_lwp (inferior_ptid);
  if (tid == 0)
    tid = ptid_get_pid (inferior_ptid); /* Not a threaded program.  */

  if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
    {
      elf_gregset_t regs;

      if (ptrace (PTRACE_GETREGS, tid, 0, (long) &regs) < 0)
	perror_with_name (_("Couldn't get registers"));

      amd64_supply_native_gregset (regcache, &regs, -1);
      if (regnum != -1)
	return;
    }

  if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
    {
      elf_fpregset_t fpregs;

      if (have_ptrace_getregset)
	{
	  char xstateregs[I386_XSTATE_MAX_SIZE];
	  struct iovec iov;

	  iov.iov_base = xstateregs;
	  iov.iov_len = sizeof (xstateregs);
	  if (ptrace (PTRACE_GETREGSET, tid,
		      (unsigned int) NT_X86_XSTATE, (long) &iov) < 0)
	    perror_with_name (_("Couldn't get extended state status"));

	  amd64_supply_xsave (regcache, -1, xstateregs);
	}
      else
	{
	  if (ptrace (PTRACE_GETFPREGS, tid, 0, (long) &fpregs) < 0)
	    perror_with_name (_("Couldn't get floating point status"));

	  amd64_supply_fxsave (regcache, -1, &fpregs);
	}
    }
}
Example #7
0
static void
amd64bsd_fetch_inferior_registers (struct target_ops *ops,
				   struct regcache *regcache, int regnum)
{
  struct gdbarch *gdbarch = get_regcache_arch (regcache);

  if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
    {
      struct reg regs;

      if (ptrace (PT_GETREGS, get_ptrace_pid (inferior_ptid),
		  (PTRACE_TYPE_ARG3) &regs, 0) == -1)
	perror_with_name (_("Couldn't get registers"));

      amd64_supply_native_gregset (regcache, &regs, -1);
      if (regnum != -1)
	return;
    }

  if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
    {
      struct fpreg fpregs;
#ifdef PT_GETXSTATE_INFO
      void *xstateregs;

      if (x86bsd_xsave_len != 0)
	{
	  xstateregs = alloca (x86bsd_xsave_len);
	  if (ptrace (PT_GETXSTATE, get_ptrace_pid (inferior_ptid),
		      (PTRACE_TYPE_ARG3) xstateregs, 0) == -1)
	    perror_with_name (_("Couldn't get extended state status"));

	  amd64_supply_xsave (regcache, -1, xstateregs);
	  return;
	}
#endif

      if (ptrace (PT_GETFPREGS, get_ptrace_pid (inferior_ptid),
		  (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't get floating point status"));

      amd64_supply_fxsave (regcache, -1, &fpregs);
    }
}
Example #8
0
void
kgdb_trgt_fetch_registers(int regno __unused)
{
    struct kthr *kt;
    struct pcb pcb;

    kt = kgdb_thr_lookup_tid(ptid_get_pid(inferior_ptid));
    if (kt == NULL)
        return;
    if (kvm_read(kvm, kt->pcb, &pcb, sizeof(pcb)) != sizeof(pcb)) {
        warnx("kvm_read: %s", kvm_geterr(kvm));
        memset(&pcb, 0, sizeof(pcb));
    }

    supply_register(AMD64_RBX_REGNUM, (char *)&pcb.pcb_rbx);
    supply_register(AMD64_RBP_REGNUM, (char *)&pcb.pcb_rbp);
    supply_register(AMD64_RSP_REGNUM, (char *)&pcb.pcb_rsp);
    supply_register(AMD64_R8_REGNUM + 4, (char *)&pcb.pcb_r12);
    supply_register(AMD64_R8_REGNUM + 5, (char *)&pcb.pcb_r13);
    supply_register(AMD64_R8_REGNUM + 6, (char *)&pcb.pcb_r14);
    supply_register(AMD64_R15_REGNUM, (char *)&pcb.pcb_r15);
    supply_register(AMD64_RIP_REGNUM, (char *)&pcb.pcb_rip);
    amd64_supply_fxsave(current_regcache, -1, (struct fpusave *)(&pcb + 1));
}
Example #9
0
void
supply_fpregset (struct regcache *regcache, const elf_fpregset_t *fpregsetp)
{
  amd64_supply_fxsave (regcache, -1, fpregsetp);
}
void
supply_fpregset (elf_fpregset_t *fpregsetp)
{
  amd64_supply_fxsave (current_regcache, -1, fpregsetp);
}
Example #11
0
void
amd64bsd_fetch_inferior_registers (struct regcache *regcache, int regnum)
{
  struct gdbarch *gdbarch = regcache->arch ();
  pid_t pid = get_ptrace_pid (regcache->ptid ());

  if (regnum == -1 || amd64_native_gregset_supplies_p (gdbarch, regnum))
    {
      struct reg regs;

      if (ptrace (PT_GETREGS, pid, (PTRACE_TYPE_ARG3) &regs, 0) == -1)
	perror_with_name (_("Couldn't get registers"));

      amd64_supply_native_gregset (regcache, &regs, -1);
      if (regnum != -1)
	return;
    }

#ifdef PT_GETFSBASE
  if (regnum == -1 || regnum == AMD64_FSBASE_REGNUM)
    {
      register_t base;

      if (ptrace (PT_GETFSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
	perror_with_name (_("Couldn't get segment register fs_base"));

      regcache->raw_supply (AMD64_FSBASE_REGNUM, &base);
      if (regnum != -1)
	return;
    }
#endif
#ifdef PT_GETGSBASE
  if (regnum == -1 || regnum == AMD64_GSBASE_REGNUM)
    {
      register_t base;

      if (ptrace (PT_GETGSBASE, pid, (PTRACE_TYPE_ARG3) &base, 0) == -1)
	perror_with_name (_("Couldn't get segment register gs_base"));

      regcache->raw_supply (AMD64_GSBASE_REGNUM, &base);
      if (regnum != -1)
	return;
    }
#endif

  if (regnum == -1 || !amd64_native_gregset_supplies_p (gdbarch, regnum))
    {
      struct fpreg fpregs;
#ifdef PT_GETXSTATE_INFO
      void *xstateregs;

      if (x86bsd_xsave_len != 0)
	{
	  xstateregs = alloca (x86bsd_xsave_len);
	  if (ptrace (PT_GETXSTATE, pid, (PTRACE_TYPE_ARG3) xstateregs, 0)
	      == -1)
	    perror_with_name (_("Couldn't get extended state status"));

	  amd64_supply_xsave (regcache, -1, xstateregs);
	  return;
	}
#endif

      if (ptrace (PT_GETFPREGS, pid, (PTRACE_TYPE_ARG3) &fpregs, 0) == -1)
	perror_with_name (_("Couldn't get floating point status"));

      amd64_supply_fxsave (regcache, -1, &fpregs);
    }
}
Example #12
0
/* Read register values from the inferior process.
   If REGNO is -1, do this for all registers.
   Otherwise, REGNO specifies which register (so we can save time).  */
static void
i386_darwin_fetch_inferior_registers (struct target_ops *ops,
				      struct regcache *regcache, int regno)
{
  thread_t current_thread = ptid_get_tid (inferior_ptid);
  int fetched = 0;
  struct gdbarch *gdbarch = get_regcache_arch (regcache);

#ifdef BFD64
  if (gdbarch_ptr_bit (gdbarch) == 64)
    {
      if (regno == -1 || amd64_native_gregset_supplies_p (gdbarch, regno))
        {
          x86_thread_state_t gp_regs;
          unsigned int gp_count = x86_THREAD_STATE_COUNT;
          kern_return_t ret;

	  ret = thread_get_state
            (current_thread, x86_THREAD_STATE, (thread_state_t) & gp_regs,
             &gp_count);
	  if (ret != KERN_SUCCESS)
	    {
	      printf_unfiltered (_("Error calling thread_get_state for "
				   "GP registers for thread 0x%ulx"),
				 current_thread);
	      MACH_CHECK_ERROR (ret);
	    }
	  amd64_supply_native_gregset (regcache, &gp_regs.uts, -1);
          fetched++;
        }

      if (regno == -1 || !amd64_native_gregset_supplies_p (gdbarch, regno))
        {
          x86_float_state_t fp_regs;
          unsigned int fp_count = x86_FLOAT_STATE_COUNT;
          kern_return_t ret;

	  ret = thread_get_state
            (current_thread, x86_FLOAT_STATE, (thread_state_t) & fp_regs,
             &fp_count);
	  if (ret != KERN_SUCCESS)
	    {
	      printf_unfiltered (_("Error calling thread_get_state for "
				   "float registers for thread 0x%ulx"),
				 current_thread);
	      MACH_CHECK_ERROR (ret);
	    }
          amd64_supply_fxsave (regcache, -1, &fp_regs.ufs.fs64.__fpu_fcw);
          fetched++;
        }
    }
  else
#endif
    {
      if (regno == -1 || regno < I386_NUM_GREGS)
        {
          i386_thread_state_t gp_regs;
          unsigned int gp_count = i386_THREAD_STATE_COUNT;
          kern_return_t ret;
	  int i;

	  ret = thread_get_state
            (current_thread, i386_THREAD_STATE, (thread_state_t) & gp_regs,
             &gp_count);
	  if (ret != KERN_SUCCESS)
	    {
	      printf_unfiltered (_("Error calling thread_get_state for "
				   "GP registers for thread 0x%ulx"),
				 current_thread);
	      MACH_CHECK_ERROR (ret);
	    }
	  for (i = 0; i < I386_NUM_GREGS; i++)
	    regcache_raw_supply
	      (regcache, i,
	       (char *)&gp_regs + i386_darwin_thread_state_reg_offset[i]);

          fetched++;
        }

      if (regno == -1
	  || (regno >= I386_ST0_REGNUM && regno < I386_SSE_NUM_REGS))
        {
          i386_float_state_t fp_regs;
          unsigned int fp_count = i386_FLOAT_STATE_COUNT;
          kern_return_t ret;

	  ret = thread_get_state
            (current_thread, i386_FLOAT_STATE, (thread_state_t) & fp_regs,
             &fp_count);
	  if (ret != KERN_SUCCESS)
	    {
	      printf_unfiltered (_("Error calling thread_get_state for "
				   "float registers for thread 0x%ulx"),
				 current_thread);
	      MACH_CHECK_ERROR (ret);
	    }
          i387_supply_fxsave (regcache, -1, &fp_regs.__fpu_fcw);
          fetched++;
        }
    }

  if (! fetched)
    {
      warning (_("unknown register %d"), regno);
      regcache_raw_supply (regcache, regno, NULL);
    }
}
void
supply_fpregset (prfpregset_t *fpregs)
{
  amd64_supply_fxsave (current_regcache, -1, fpregs);
}