Add e500 port.

32 files changed, 1227 insertions, 11 deletions

diff --git a/ChangeLog b/ChangeLog
index 1078b357cb..cb3651ac88 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,61 @@
+2013-10-18  Joseph Myers  <joseph@codesourcery.com>
+	    Aldy Hernandez  <aldyh@redhat.com>
+
+	* sysdeps/powerpc/powerpc32/e500/nofpu/Makefile: New file.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fedisblxcpt.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/feenablxcpt.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fegetexcept.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fegetround.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/feholdexcpt.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fenv_const.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fenv_libc.h: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fesetenv.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fesetround.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/feupdateenv.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fexcepts_from_prctl.c:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fexcepts_from_spe.c:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fexcepts_to_prctl.c:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fexcepts_to_spe.c:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fgetexcptflg.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fraiseexcept-soft.c:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fraiseexcpt.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/fsetexcptflg.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/ftestexcept.c: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/get-rounding-mode.h:
+	Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/s_fabsf.S: Likewise.
+	* sysdeps/powerpc/powerpc32/e500/nofpu/spe-raise.c: Likewise.
+	* sysdeps/powerpc/preconfigure: Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/e500/nofpu/Implies:
+	Likewise.
+	* sysdeps/powerpc/nofpu/soft-supp.h [__NO_FPRS__ && !_SOFT_FLOAT]:
+	Replace contents of file by #include of <fenv_libc.h>.
+	* sysdeps/powerpc/soft-fp/sfp-machine.h
+	[__NO_FPRS__ && !_SOFT_FLOAT]: Include <fenv_libc.h>, <sysdep.h>
+	and <sys/prctl.h>.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (__feraiseexcept_soft): Declare.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_EX_INEXACT): Define macro.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_EX_INVALID): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_EX_DIVZERO): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_EX_UNDERFLOW): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_EX_OVERFLOW): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (_FP_DECL_EX): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_INIT_ROUNDMODE): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_INIT_EXCEPTIONS): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_HANDLE_EXCEPTIONS): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_ROUNDMODE): Likewise.
+	[__NO_FPRS__ && !_SOFT_FLOAT] (FP_TRAPPING_EXCEPTIONS): Likewise.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/nptl/localplt.data:
+	Allow copysignl PLT reference to be missing.
+
 2013-10-18  Richard Sandiford  <richard@codesourcery.com>
 	    Joseph Myers  <joseph@codesourcery.com
 
diff --git a/sysdeps/powerpc/nofpu/soft-supp.h b/sysdeps/powerpc/nofpu/soft-supp.h
index 64a3d2a1d2..18b4550e3b 100644
--- a/sysdeps/powerpc/nofpu/soft-supp.h
+++ b/sysdeps/powerpc/nofpu/soft-supp.h
@@ -17,7 +17,13 @@
    License along with the GNU C Library.  If not, see
    <http://www.gnu.org/licenses/>.  */
 
-#include <fenv.h>
+#if defined __NO_FPRS__ && !defined _SOFT_FLOAT
+
+# include <fenv_libc.h>
+
+#else
+
+# include <fenv.h>
 
 typedef union
 {
@@ -25,6 +31,7 @@ typedef union
   unsigned int l[2];
 } fenv_union_t;
 
+#endif
 
 /* FIXME: these variables should be thread specific (see bugzilla bug
    15483) and ideally preserved across signal handlers, like hardware
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/Makefile b/sysdeps/powerpc/powerpc32/e500/nofpu/Makefile
new file mode 100644
index 0000000000..adf556870a
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/Makefile
@@ -0,0 +1,9 @@
+ifeq ($(subdir),math)
+libm-routines += fexcepts_to_spe fexcepts_from_spe
+libm-routines += fexcepts_to_prctl fexcepts_from_prctl
+libm-routines += fe_note_change
+endif
+
+ifeq ($(subdir),soft-fp)
+sysdep_routines += fraiseexcept-soft
+endif
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.c
new file mode 100644
index 0000000000..92a7dd1e09
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.c
@@ -0,0 +1,53 @@
+/* Clear given exceptions in current floating-point environment.  e500 version.
+   Copyright (C) 2004-2013 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/>.  */
+
+#include <fenv_libc.h>
+
+#undef feclearexcept
+int
+__feclearexcept (int excepts)
+{
+  unsigned int fpescr;
+  int excepts_spe = __fexcepts_to_spe (excepts);
+
+  /* Get the current state.  */
+  fpescr = fegetenv_register ();
+
+  /* Clear the relevant bits.  */
+  fpescr &= ~excepts_spe;
+
+  /* Put the new state in effect.  */
+  fesetenv_register (fpescr);
+
+  /* Let the kernel know if the "invalid" or "underflow" bit was
+     cleared.  */
+  if (excepts & (FE_INVALID | FE_UNDERFLOW))
+    __fe_note_change ();
+
+  /* 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
+
+libm_hidden_ver (__feclearexcept, feclearexcept)
+versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c
new file mode 100644
index 0000000000..43a5706264
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fe_note_change.c
@@ -0,0 +1,39 @@
+/* Note a change to floating-point exceptions.
+   Copyright (C) 2013 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/>.  */
+
+#include <fenv_libc.h>
+#include <sysdep.h>
+#include <sys/prctl.h>
+
+/* Inform the kernel of a change to floating-point exceptions.  */
+
+void
+__fe_note_change (void)
+{
+  int pflags, r;
+  INTERNAL_SYSCALL_DECL (err);
+
+  r = INTERNAL_SYSCALL (prctl, err, 2, PR_GET_FPEXC, &pflags);
+  if (INTERNAL_SYSCALL_ERROR_P (r, err))
+    return;
+  if ((pflags & PR_FP_EXC_SW_ENABLE) == 0)
+    INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC,
+		      pflags | PR_FP_EXC_SW_ENABLE);
+}
+
+libm_hidden_def (__fe_note_change)
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fedisblxcpt.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fedisblxcpt.c
new file mode 100644
index 0000000000..7cc963c019
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fedisblxcpt.c
@@ -0,0 +1,54 @@
+/* Disable floating-point exceptions.  e500 version.
+   Copyright (C) 2004-2013 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/>.  */
+
+#include <fenv_libc.h>
+#include <sysdep.h>
+#include <sys/prctl.h>
+
+int
+fedisableexcept (int excepts)
+{
+  int result = 0, pflags, r;
+  INTERNAL_SYSCALL_DECL (err);
+
+  r = INTERNAL_SYSCALL (prctl, err, 2, PR_GET_FPEXC, &pflags);
+  if (INTERNAL_SYSCALL_ERROR_P (r, err))
+    return -1;
+
+  /* Save old enable bits.  */
+  result = __fexcepts_from_prctl (pflags);
+
+  pflags &= ~__fexcepts_to_prctl (excepts);
+  r = INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC,
+			pflags | PR_FP_EXC_SW_ENABLE);
+  if (INTERNAL_SYSCALL_ERROR_P (r, err))
+    return -1;
+
+  /* If disabling signals for "inexact", also disable trapping to the
+     kernel.  */
+  if ((excepts & FE_INEXACT) != 0)
+    {
+      unsigned long fpescr;
+
+      fpescr = fegetenv_register ();
+      fpescr &= ~SPEFSCR_FINXE;
+      fesetenv_register (fpescr);
+    }
+
+  return result;
+}
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/feenablxcpt.c b/sysdeps/powerpc/powerpc32/e500/nofpu/feenablxcpt.c
new file mode 100644
index 0000000000..133dde7b31
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/feenablxcpt.c
@@ -0,0 +1,54 @@
+/* Enable floating-point exceptions.  e500 version.
+   Copyright (C) 2004-2013 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/>.  */
+
+#include <fenv_libc.h>
+#include <sysdep.h>
+#include <sys/prctl.h>
+
+int
+feenableexcept (int excepts)
+{
+  unsigned int result = 0, pflags, r;
+  INTERNAL_SYSCALL_DECL (err);
+
+  r = INTERNAL_SYSCALL (prctl, err, 2, PR_GET_FPEXC, &pflags);
+  if (INTERNAL_SYSCALL_ERROR_P (r, err))
+    return -1;
+
+  /* Save old enable bits.  */
+  result = __fexcepts_from_prctl (pflags);
+
+  pflags |= __fexcepts_to_prctl (excepts);
+  r = INTERNAL_SYSCALL (prctl, err, 2, PR_SET_FPEXC,
+			pflags | PR_FP_EXC_SW_ENABLE);
+  if (INTERNAL_SYSCALL_ERROR_P (r, err))
+    return -1;
+
+  /* If enabling signals for "inexact", also enable trapping to the
+     kernel.  */
+  if ((excepts & FE_INEXACT) != 0)
+    {
+      unsigned long fpescr;
+
+      fpescr = fegetenv_register ();
+      fpescr |= SPEFSCR_FINXE;
+      fesetenv_register (fpescr);
+    }
+
+  return result;
+}
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c
new file mode 100644
index 0000000000..bfcbca2ad3
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fegetenv.c
@@ -0,0 +1,47 @@
+/* Store current floating-point environment.  e500 version.
+   Copyright (C) 2004-2013 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/>.  */
+
+#include <fenv_libc.h>
+#include <sysdep.h>
+#include <sys/prctl.h>
+
+int
+__fegetenv (fenv_t *envp)
+{
+  fenv_union_t u;
+  INTERNAL_SYSCALL_DECL (err);
+  int r;
+
+  r = INTERNAL_SYSCALL (prctl, err, 2, PR_GET_FPEXC, &u.l[0]);
+  if (INTERNAL_SYSCALL_ERROR_P (r, err))
+    return -1;
+
+  u.l[1] = fegetenv_register ();
+  *envp = u.fenv;
+
+  /* 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
+
+versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fegetexcept.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fegetexcept.c
new file mode 100644
index 0000000000..9c7afc74f4
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fegetexcept.c
@@ -0,0 +1,36 @@
+/* Get floating-point exceptions.  e500 version.
+   Copyright (C) 2004-2013 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/>.  */
+
+#include <fenv_libc.h>
+#include <sysdep.h>
+#include <sys/prctl.h>
+
+int
+fegetexcept (void)
+{
+  int result = 0, pflags, r;