Merge glibc-ports into ports/ directory. glibc-2.16.90 glibc-2.16-ports-merge

14 files changed, 637 insertions, 0 deletions

diff --git a/ports/sysdeps/m68k/fpu/bits/fenv.h b/ports/sysdeps/m68k/fpu/bits/fenv.h
new file mode 100644
index 0000000000..c98365acdc
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/bits/fenv.h
@@ -0,0 +1,78 @@
+/* Copyright (C) 1997, 1998, 1999, 2000, 2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+
+/* Define bits representing the exception.  We use the bit positions of
+   the appropriate bits in the FPSR Accrued Exception Byte.  */
+enum
+  {
+    FE_INEXACT = 1 << 3,
+#define FE_INEXACT	FE_INEXACT
+    FE_DIVBYZERO = 1 << 4,
+#define FE_DIVBYZERO	FE_DIVBYZERO
+    FE_UNDERFLOW = 1 << 5,
+#define FE_UNDERFLOW	FE_UNDERFLOW
+    FE_OVERFLOW = 1 << 6,
+#define FE_OVERFLOW	FE_OVERFLOW
+    FE_INVALID = 1 << 7
+#define FE_INVALID	FE_INVALID
+  };
+
+#define FE_ALL_EXCEPT \
+	(FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* The m68k FPU supports all of the four defined rounding modes.  We use
+   the bit positions in the FPCR Mode Control Byte as the values for the
+   appropriate macros.  */
+enum
+  {
+    FE_TONEAREST = 0,
+#define FE_TONEAREST	FE_TONEAREST
+    FE_TOWARDZERO = 1 << 4,
+#define FE_TOWARDZERO	FE_TOWARDZERO
+    FE_DOWNWARD = 2 << 4,
+#define FE_DOWNWARD	FE_DOWNWARD
+    FE_UPWARD = 3 << 4
+#define FE_UPWARD	FE_UPWARD
+  };
+
+
+/* Type representing exception flags.  */
+typedef unsigned int fexcept_t;
+
+
+/* Type representing floating-point environment.  This structure
+   corresponds to the layout of the block written by `fmovem'.  */
+typedef struct
+  {
+    unsigned int __control_register;
+    unsigned int __status_register;
+    unsigned int __instruction_address;
+  }
+fenv_t;
+
+/* If the default argument is used we use this value.  */
+#define FE_DFL_ENV	((const fenv_t *) -1)
+
+#ifdef __USE_GNU
+/* Floating-point environment where none of the exceptions are masked.  */
+# define FE_NOMASK_ENV	((const fenv_t *) -2)
+#endif
diff --git a/ports/sysdeps/m68k/fpu/fclrexcpt.c b/ports/sysdeps/m68k/fpu/fclrexcpt.c
new file mode 100644
index 0000000000..ceda99cb98
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fclrexcpt.c
@@ -0,0 +1,49 @@
+/* Clear given exceptions in current floating-point environment.
+   Copyright (C) 1997,99,2000,01 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+__feclearexcept (int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Mask out unsupported bits/exceptions.  */
+  excepts &= FE_ALL_EXCEPT;
+
+  /* Fetch the fpu status register.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  /* Clear the relevant bits.  */
+  fpsr &= ~excepts;
+
+  /* Put the new data in effect.  */
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+
+  /* Success.  */
+  return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__feclearexcept, __old_feclearexcept)
+compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1);
+#endif
+
+versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);
diff --git a/ports/sysdeps/m68k/fpu/fedisblxcpt.c b/ports/sysdeps/m68k/fpu/fedisblxcpt.c
new file mode 100644
index 0000000000..a9a2df6688
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fedisblxcpt.c
@@ -0,0 +1,38 @@
+/* Disable floating-point exceptions.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@suse.de>, 2000.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fedisableexcept (int excepts)
+{
+  unsigned int old_exc, new_exc;
+
+  /* Get the current control register contents.  */
+  __asm__ ("fmove%.l %!,%0" : "=dm" (new_exc));
+
+  old_exc = (new_exc >> 6) & FE_ALL_EXCEPT;
+
+  excepts &= FE_ALL_EXCEPT;
+
+  new_exc &= ~(excepts << 6);
+  __asm__ ("fmove%.l %0,%!" : : "dm" (new_exc));
+
+  return old_exc;
+}
diff --git a/ports/sysdeps/m68k/fpu/feenablxcpt.c b/ports/sysdeps/m68k/fpu/feenablxcpt.c
new file mode 100644
index 0000000000..e18c79e74b
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/feenablxcpt.c
@@ -0,0 +1,38 @@
+/* Enable floating-point exceptions.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@suse.de>, 2000.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+feenableexcept (int excepts)
+{
+  unsigned int new_exc, old_exc;
+
+  /* Get the current control register contents.  */
+  __asm__ ("fmove%.l %!,%0" : "=dm" (new_exc));
+
+  old_exc = (new_exc >> 6) & FE_ALL_EXCEPT;
+
+  excepts &= FE_ALL_EXCEPT;
+
+  new_exc |= excepts << 6;
+  __asm__ ("fmove%.l %0,%!" : : "dm" (new_exc));
+
+  return old_exc;
+}
diff --git a/ports/sysdeps/m68k/fpu/fegetenv.c b/ports/sysdeps/m68k/fpu/fegetenv.c
new file mode 100644
index 0000000000..84838a2cff
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fegetenv.c
@@ -0,0 +1,44 @@
+/* Store current floating-point environment.
+   Copyright (C) 1997,99,2000,01,10 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+__fegetenv (fenv_t *envp)
+{
+#ifdef __mcoldfire__
+  __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (envp->__control_register));
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (envp->__status_register));
+  __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (envp->__instruction_address));
+#else
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*envp));
+#endif
+
+  /* Success.  */
+  return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__fegetenv, __old_fegetenv)
+compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1);
+#endif
+
+libm_hidden_ver (__fegetenv, fegetenv)
+versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);
diff --git a/ports/sysdeps/m68k/fpu/fegetexcept.c b/ports/sysdeps/m68k/fpu/fegetexcept.c
new file mode 100644
index 0000000000..d735884e2a
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fegetexcept.c
@@ -0,0 +1,31 @@
+/* Get enabled floating-point exceptions.
+   Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@suse.de>, 2000.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fegetexcept (void)
+{
+  unsigned int exc;
+
+  /* Get the current control register contents.  */
+  __asm__ ("fmove%.l %!,%0" : "=dm" (exc));
+
+  return (exc >> 6) & FE_ALL_EXCEPT;
+}
diff --git a/ports/sysdeps/m68k/fpu/fegetround.c b/ports/sysdeps/m68k/fpu/fegetround.c
new file mode 100644
index 0000000000..7d09e0fd37
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fegetround.c
@@ -0,0 +1,30 @@
+/* Return current rounding direction.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fegetround (void)
+{
+  int fpcr;
+
+  __asm__ ("fmove%.l %!,%0" : "=dm" (fpcr));
+
+  return fpcr & FE_UPWARD;
+}
diff --git a/ports/sysdeps/m68k/fpu/feholdexcpt.c b/ports/sysdeps/m68k/fpu/feholdexcpt.c
new file mode 100644
index 0000000000..c58de5b972
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/feholdexcpt.c
@@ -0,0 +1,45 @@
+/* Store current floating-point environment and clear exceptions.
+   Copyright (C) 1997, 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+feholdexcept (fenv_t *envp)
+{
+  fexcept_t fpcr, fpsr;
+
+  /* Store the environment.  */
+#ifdef __mcoldfire__
+  __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (envp->__control_register));
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (envp->__status_register));
+  __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (envp->__instruction_address));
+#else
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*envp));
+#endif
+
+  /* Now clear all exceptions.  */
+  fpsr = envp->__status_register & ~FE_ALL_EXCEPT;
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+  /* And set all exceptions to non-stop.  */
+  fpcr = envp->__control_register & ~(FE_ALL_EXCEPT << 6);
+  __asm__ __volatile__ ("fmove%.l %0,%!" : : "dm" (fpcr));
+
+  return 0;
+}
+libm_hidden_def (feholdexcept);
diff --git a/ports/sysdeps/m68k/fpu/fesetenv.c b/ports/sysdeps/m68k/fpu/fesetenv.c
new file mode 100644
index 0000000000..1186010adc
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fesetenv.c
@@ -0,0 +1,74 @@
+/* Install given floating-point environment.
+   Copyright (C) 1997,99,2000,01,02 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+__fesetenv (const fenv_t *envp)
+{
+  fenv_t temp;
+
+  /* Install the environment specified by ENVP.  But there are a few
+     values which we do not want to come from the saved environment.
+     Therefore, we get the current environment and replace the values
+     we want to use from the environment specified by the parameter.  */
+#ifdef __mcoldfire__
+  __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (temp.__control_register));
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (temp.__status_register));
+  __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (temp.__instruction_address));
+#else
+  __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*&temp));
+#endif
+
+  temp.__status_register &= ~FE_ALL_EXCEPT;
+  temp.__control_register &= ~((FE_ALL_EXCEPT << 6) | FE_UPWARD);
+  if (envp == FE_DFL_ENV)
+    ;
+  else if (envp == FE_NOMASK_ENV)
+    temp.__control_register |= FE_ALL_EXCEPT << 6;
+  else
+    {
+      temp.__control_register |= (envp->__control_register
+				  & ((FE_ALL_EXCEPT << 6) | FE_UPWARD));
+      temp.__status_register |= envp->__status_register & FE_ALL_EXCEPT;
+    }
+
+#ifdef __mcoldfire__
+  __asm__ __volatile__ ("fmove%.l %0,%/fpiar"
+			:: "dm" (temp.__instruction_address));
+  __asm__ __volatile__ ("fmove%.l %0,%/fpcr"
+			:: "dm" (temp.__control_register));
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr"
+			:: "dm" (temp.__status_register));
+#else
+  __asm__ __volatile__ ("fmovem%.l %0,%/fpcr/%/fpsr/%/fpiar" : : "m" (*&temp));
+#endif
+
+  /* Success.  */
+  return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__fesetenv, __old_fesetenv)
+compat_symbol (libm, __old_fesetenv, fesetenv, GLIBC_2_1);
+#endif
+
+libm_hidden_ver (__fesetenv, fesetenv)
+versioned_symbol (libm, __fesetenv, fesetenv, GLIBC_2_2);
diff --git a/ports/sysdeps/m68k/fpu/fesetround.c b/ports/sysdeps/m68k/fpu/fesetround.c
new file mode 100644
index 0000000000..bfc463d07a
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fesetround.c
@@ -0,0 +1,38 @@
+/* Set current rounding direction.
+   Copyright (C) 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fesetround (int round)
+{
+  fexcept_t fpcr;
+
+  if (round & ~FE_UPWARD)
+    /* ROUND is no valid rounding mode.  */
+    return 1;
+
+  __asm__ ("fmove%.l %!,%0" : "=dm" (fpcr));
+  fpcr &= ~FE_UPWARD;
+  fpcr |= round;
+  __asm__ __volatile__ ("fmove%.l %0,%!" : : "dm" (fpcr));
+
+  return 0;
+}
+libm_hidden_def (fesetround);
diff --git a/ports/sysdeps/m68k/fpu/feupdateenv.c b/ports/sysdeps/m68k/fpu/feupdateenv.c
new file mode 100644
index 0000000000..dbfa3501f3
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/feupdateenv.c
@@ -0,0 +1,50 @@
+/* Install given floating-point environment and raise exceptions.
+   Copyright (C) 1997,1999-2001,2010 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+__feupdateenv (const fenv_t *envp)
+{
+  fexcept_t fpsr;
+
+  /* Save current exceptions.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+  fpsr &= FE_ALL_EXCEPT;
+
+  /* Install new environment.  */
+  fesetenv (envp);
+
+  /* Raise the saved exception.  Incidently for us the implementation
+     defined format of the values in objects of type fexcept_t is the
+     same as the ones specified using the FE_* constants.  */
+  feraiseexcept ((int) fpsr);
+
+  /* Success.  */
+  return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__feupdateenv, __old_feupdateenv)
+compat_symbol (libm, __old_feupdateenv, feupdateenv, GLIBC_2_1);
+#endif
+
+libm_hidden_ver (__feupdateenv, feupdateenv)
+versioned_symbol (libm, __feupdateenv, feupdateenv, GLIBC_2_2);
diff --git a/ports/sysdeps/m68k/fpu/fgetexcptflg.c b/ports/sysdeps/m68k/fpu/fgetexcptflg.c
new file mode 100644
index 0000000000..c6f277e490
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fgetexcptflg.c
@@ -0,0 +1,42 @@
+/* Store current representation for exceptions.
+   Copyright (C) 1997,99,2000,01 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+__fegetexceptflag (fexcept_t *flagp, int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Get the current exceptions.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  *flagp = fpsr & excepts & FE_ALL_EXCEPT;
+
+  /* Success.  */
+  return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__fegetexceptflag, __old_fegetexceptflag)
+compat_symbol (libm, __old_fegetexceptflag, fegetexceptflag, GLIBC_2_1);
+#endif
+
+versioned_symbol (libm, __fegetexceptflag, fegetexceptflag, GLIBC_2_2);
diff --git a/ports/sysdeps/m68k/fpu/fsetexcptflg.c b/ports/sysdeps/m68k/fpu/fsetexcptflg.c
new file mode 100644
index 0000000000..dca265f0b8
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/fsetexcptflg.c
@@ -0,0 +1,48 @@
+/* Set floating-point environment exception handling.
+   Copyright (C) 1997,99,2000,01 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+#include <math.h>
+
+int
+__fesetexceptflag (const fexcept_t *flagp, int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Get the current status register.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  /* Install the new exception bits in the Accrued Exception Byte.  */
+  fpsr &= ~(excepts & FE_ALL_EXCEPT);
+  fpsr |= *flagp & excepts & FE_ALL_EXCEPT;
+
+  /* Store the new status register.  */
+  __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr));
+
+  /* Success.  */
+  return 0;
+}
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
+strong_alias (__fesetexceptflag, __old_fesetexceptflag)
+compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1);
+#endif
+
+versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2);
diff --git a/ports/sysdeps/m68k/fpu/ftestexcept.c b/ports/sysdeps/m68k/fpu/ftestexcept.c
new file mode 100644
index 0000000000..535d0eabc7
--- /dev/null
+++ b/ports/sysdeps/m68k/fpu/ftestexcept.c
@@ -0,0 +1,32 @@
+/* Test exception in current environment.
+   Copyright (C) 1997, 2010 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <fenv.h>
+
+int
+fetestexcept (int excepts)
+{
+  fexcept_t fpsr;
+
+  /* Get current exceptions.  */
+  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
+
+  return fpsr & excepts & FE_ALL_EXCEPT;
+}
+libm_hidden_def (fetestexcept)