Target deprecation patch for 4.6

Target deprecation patch for 4.6

[Joseph S. Myers]

This patch implements deprecation for 4.6 of the targets I proposed at
<http://gcc.gnu.org/ml/gcc/2011-01/msg00391.html>, plus the Alpha and
Power GNU/Hurd targets indicated at
<http://gcc.gnu.org/ml/gcc-patches/2011-02/msg00358.html> as not being
currently usable.  If approved I will prepare the corresponding
release notes changes.

Bootstrapped with no regressions on x86_64-unknown-linux-gnu.  OK to
commit?

2011-02-06  Joseph Myers  <joseph@codesourcery.com>

	* config.gcc (arc-*, alpha*-*-gnu*, arm*-*-netbsd*, arm-*-pe*,
	i[34567]86-*-interix3*, i[34567]86-*-netbsd*, i[34567]86-*-pe,
	m68hc11-*-*, m6811-*-*, m68hc12-*-*, m6812-*-*,
	m68k-*-uclinuxoldabi*, mcore-*-pe*, powerpc*-*-gnu*,
	sh*-*-symbianelf*, vax-*-netbsd*): Mark obsolete.

Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc	(revision 169867)
+++ gcc/config.gcc	(working copy)
@@ -225,16 +225,39 @@ xm_file=
 md_file=
 
 # Obsolete configurations.
-#case ${target} in
-# )
-#    if test "x$enable_obsolete" != xyes; then
-#      echo "*** Configuration ${target} is obsolete." >&2
-#      echo "*** Specify --enable-obsolete to build it anyway." >&2
-#      echo "*** Support will be REMOVED in the next major release of GCC," >&2
-#      echo "*** unless a maintainer comes forward." >&2
-#      exit 1
-#    fi;;
-#esac
+case ${target} in
+# Avoid cases below matching.
+   alpha*-*-linux*			\
+ | arm*-wince-pe*			\
+ | arm*-*-netbsdelf*			\
+ | i[34567]86-*-netbsdelf*		\
+ | powerpc*-*-linux*			\
+ | vax-*-netbsdelf*) ;;
+   arc-*				\
+ | alpha*-*-gnu*			\
+ | arm*-*-netbsd*			\
+ | arm-*-pe*				\
+ | i[34567]86-*-interix3*		\
+ | i[34567]86-*-netbsd*			\
+ | i[34567]86-*-pe			\
+ | m68hc11-*-*				\
+ | m6811-*-*				\
+ | m68hc12-*-*				\
+ | m6812-*-*				\
+ | m68k-*-uclinuxoldabi*		\
+ | mcore-*-pe*				\
+ | powerpc*-*-gnu*			\
+ | sh*-*-symbianelf*			\
+ | vax-*-netbsd*			\
+ )
+    if test "x$enable_obsolete" != xyes; then
+      echo "*** Configuration ${target} is obsolete." >&2
+      echo "*** Specify --enable-obsolete to build it anyway." >&2
+      echo "*** Support will be REMOVED in the next major release of GCC," >&2
+      echo "*** unless a maintainer comes forward." >&2
+      exit 1
+    fi;;
+esac
 
 # Unsupported targets list.  Do not put an entry in this list unless
 # it would otherwise be caught by a more permissive pattern.  The list

-- 
Joseph S. Myers
joseph@codesourcery.com

Re: Target deprecation patch for 4.6

[Thomas Schwinge]

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Hallo!

bug-hurd audience: This is about deprecating any GNU/Hurd target
configuration apart from x86 -- none of the former have been maintained
for a lot of years, and there aren't any plans either.  If there should
arise interest in reviving / completing these toolchain configurations,
re-adding GCC target configuration support is the smallest detail.


On Mon, 7 Feb 2011 02:03:38 +0000 (UTC), "Joseph S. Myers" <joseph@codesourcery.com> wrote:
> This patch implements deprecation for 4.6 of the targets I proposed at
> <http://gcc.gnu.org/ml/gcc/2011-01/msg00391.html>, plus the Alpha and
> Power GNU/Hurd targets indicated at
> <http://gcc.gnu.org/ml/gcc-patches/2011-02/msg00358.html> as not being
> currently usable.  If approved I will prepare the corresponding
> release notes changes.
> 
> Bootstrapped with no regressions on x86_64-unknown-linux-gnu.  OK to
> commit?
> 
> 2011-02-06  Joseph Myers  <joseph@codesourcery.com>
> 
> 	* config.gcc (arc-*, alpha*-*-gnu*, arm*-*-netbsd*, arm-*-pe*,
> 	i[34567]86-*-interix3*, i[34567]86-*-netbsd*, i[34567]86-*-pe,
> 	m68hc11-*-*, m6811-*-*, m68hc12-*-*, m6812-*-*,
> 	m68k-*-uclinuxoldabi*, mcore-*-pe*, powerpc*-*-gnu*,
> 	sh*-*-symbianelf*, vax-*-netbsd*): Mark obsolete.

OK for alpha*-*-gnu*, powerpc*-*-gnu* (that is, powerpc64-*-gnu*,
powerpc-*-gnu-gnualtivec*, powerpc-*-gnu*).


> Index: gcc/config.gcc
> ===================================================================
> --- gcc/config.gcc	(revision 169867)
> +++ gcc/config.gcc	(working copy)
> @@ -225,16 +225,39 @@ xm_file=
>  md_file=
>  
>  # Obsolete configurations.
> -#case ${target} in
> -# )
> -#    if test "x$enable_obsolete" != xyes; then
> -#      echo "*** Configuration ${target} is obsolete." >&2
> -#      echo "*** Specify --enable-obsolete to build it anyway." >&2
> -#      echo "*** Support will be REMOVED in the next major release of GCC," >&2
> -#      echo "*** unless a maintainer comes forward." >&2
> -#      exit 1
> -#    fi;;
> -#esac
> +case ${target} in
> +# Avoid cases below matching.
> +   alpha*-*-linux*			\
> + | arm*-wince-pe*			\
> + | arm*-*-netbsdelf*			\
> + | i[34567]86-*-netbsdelf*		\
> + | powerpc*-*-linux*			\
> + | vax-*-netbsdelf*) ;;
> +   arc-*				\
> + | alpha*-*-gnu*			\
> + | arm*-*-netbsd*			\
> + | arm-*-pe*				\
> + | i[34567]86-*-interix3*		\
> + | i[34567]86-*-netbsd*			\
> + | i[34567]86-*-pe			\
> + | m68hc11-*-*				\
> + | m6811-*-*				\
> + | m68hc12-*-*				\
> + | m6812-*-*				\
> + | m68k-*-uclinuxoldabi*		\
> + | mcore-*-pe*				\
> + | powerpc*-*-gnu*			\
> + | sh*-*-symbianelf*			\
> + | vax-*-netbsd*			\
> + )
> +    if test "x$enable_obsolete" != xyes; then
> +      echo "*** Configuration ${target} is obsolete." >&2
> +      echo "*** Specify --enable-obsolete to build it anyway." >&2
> +      echo "*** Support will be REMOVED in the next major release of GCC," >&2
> +      echo "*** unless a maintainer comes forward." >&2
> +      exit 1
> +    fi;;
> +esac
>  
>  # Unsupported targets list.  Do not put an entry in this list unless
>  # it would otherwise be caught by a more permissive pattern.  The list


Grüße,
 Thomas

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Re: Target deprecation patch for 4.6

[Richard Guenther]

On Mon, Feb 7, 2011 at 3:03 AM, Joseph S. Myers <joseph@codesourcery.com> wrote:
> This patch implements deprecation for 4.6 of the targets I proposed at
> <http://gcc.gnu.org/ml/gcc/2011-01/msg00391.html>, plus the Alpha and
> Power GNU/Hurd targets indicated at
> <http://gcc.gnu.org/ml/gcc-patches/2011-02/msg00358.html> as not being
> currently usable.  If approved I will prepare the corresponding
> release notes changes.
>
> Bootstrapped with no regressions on x86_64-unknown-linux-gnu.  OK to
> commit?

Ok from a RM perspective, I'm not 100% sure I can approve such patch,
it remotely sounds like a SC job.  OTOH nobody objected to the proposals.

Thanks,
Richard.

> 2011-02-06  Joseph Myers  <joseph@codesourcery.com>
>
>        * config.gcc (arc-*, alpha*-*-gnu*, arm*-*-netbsd*, arm-*-pe*,
>        i[34567]86-*-interix3*, i[34567]86-*-netbsd*, i[34567]86-*-pe,
>        m68hc11-*-*, m6811-*-*, m68hc12-*-*, m6812-*-*,
>        m68k-*-uclinuxoldabi*, mcore-*-pe*, powerpc*-*-gnu*,
>        sh*-*-symbianelf*, vax-*-netbsd*): Mark obsolete.
>
> Index: gcc/config.gcc
> ===================================================================
> --- gcc/config.gcc      (revision 169867)
> +++ gcc/config.gcc      (working copy)
> @@ -225,16 +225,39 @@ xm_file=
>  md_file=
>
>  # Obsolete configurations.
> -#case ${target} in
> -# )
> -#    if test "x$enable_obsolete" != xyes; then
> -#      echo "*** Configuration ${target} is obsolete." >&2
> -#      echo "*** Specify --enable-obsolete to build it anyway." >&2
> -#      echo "*** Support will be REMOVED in the next major release of GCC," >&2
> -#      echo "*** unless a maintainer comes forward." >&2
> -#      exit 1
> -#    fi;;
> -#esac
> +case ${target} in
> +# Avoid cases below matching.
> +   alpha*-*-linux*                     \
> + | arm*-wince-pe*                      \
> + | arm*-*-netbsdelf*                   \
> + | i[34567]86-*-netbsdelf*             \
> + | powerpc*-*-linux*                   \
> + | vax-*-netbsdelf*) ;;
> +   arc-*                               \
> + | alpha*-*-gnu*                       \
> + | arm*-*-netbsd*                      \
> + | arm-*-pe*                           \
> + | i[34567]86-*-interix3*              \
> + | i[34567]86-*-netbsd*                        \
> + | i[34567]86-*-pe                     \
> + | m68hc11-*-*                         \
> + | m6811-*-*                           \
> + | m68hc12-*-*                         \
> + | m6812-*-*                           \
> + | m68k-*-uclinuxoldabi*               \
> + | mcore-*-pe*                         \
> + | powerpc*-*-gnu*                     \
> + | sh*-*-symbianelf*                   \
> + | vax-*-netbsd*                       \
> + )
> +    if test "x$enable_obsolete" != xyes; then
> +      echo "*** Configuration ${target} is obsolete." >&2
> +      echo "*** Specify --enable-obsolete to build it anyway." >&2
> +      echo "*** Support will be REMOVED in the next major release of GCC," >&2
> +      echo "*** unless a maintainer comes forward." >&2
> +      exit 1
> +    fi;;
> +esac
>
>  # Unsupported targets list.  Do not put an entry in this list unless
>  # it would otherwise be caught by a more permissive pattern.  The list
>
> --
> Joseph S. Myers
> joseph@codesourcery.com
>

Re: Target deprecation patch for 4.6

[Samuel Thibault]

Thomas Schwinge, le Mon 07 Feb 2011 11:13:44 +0100, a écrit :
> bug-hurd audience: This is about deprecating any GNU/Hurd target
> configuration apart from x86 -- none of the former have been maintained
> for a lot of years, and there aren't any plans either.

Agreed.

Samuel

Re: Target deprecation patch for 4.6

[Joseph S. Myers]

I have committed the deprecation patch, and the following patch to add 
release notes for the deprecations.

Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.6/changes.html,v
retrieving revision 1.110
diff -u -r1.110 changes.html
--- changes.html	8 Feb 2011 00:12:46 -0000	1.110
+++ changes.html	8 Feb 2011 17:31:03 -0000
@@ -46,6 +46,51 @@
     <code>libquadmath</code> library is automatically built on
     such targets when building the Fortran compiler.</li>
 
+    <li><p>Support for a number of older systems and recently
+    unmaintained or untested target ports of GCC has been declared
+    obsolete in GCC 4.6.  Unless there is activity to revive them, the
+    next release of GCC will have their sources permanently
+    <strong>removed</strong>.</p>
+
+    <p id="obsoleted">All GCC ports for the following processor
+    architectures have been declared obsolete:</p>
+
+    <ul>
+      <li>Argonaut ARC (<code>arc-*</code>)</li>
+      <li>Motorola 68HC11 and 68HC12
+      (<code>m68hc11-*-*</code>, <code>m6811-*-*</code>,
+      <code>m68hc12-*-*</code>, <code>m6812-*-*</code>)</li>
+    </ul>
+
+    <p>The following ports for individual systems on
+    particular architectures have been obsoleted:</p>
+
+    <ul>
+      <li>Interix (<code>i[34567]86-*-interix3*</code>)</li>
+      <li>Generic ARM PE (<code>arm-*-pe*</code> other
+      than <code>arm*-wince-pe*</code>)</li>
+      <li>MCore PE (<code>mcore-*-pe*</code>)</li>
+      <li>SH SymbianOS (<code>sh*-*-symbianelf*</code>)</li>
+      <li>GNU Hurd on Alpha and PowerPC
+      (<code>alpha*-*-gnu*</code>, <code>powerpc*-*-gnu*</code>)</li>
+      <li>M68K uClinux old ABI
+      (<code>m68k-*-uclinuxoldabi*</code>)</li>
+      <li>a.out NetBSD
+      (<code>arm*-*-netbsd*</code>, <code>i[34567]86-*-netbsd*</code>,
+      <code>vax-*-netbsd*</code>, but
+      not <code>*-*-netbsdelf*</code>)</li>
+    </ul>
+
+    <p>The <code>i[34567]86-*-pe</code> alias for Cygwin targets has
+    also been obsoleted; users should configure
+    for <code>i[34567]86-*-cygwin*</code> instead.</p>
+
+    </li>
+
+    <li>Support has been removed for all the 
+    <a href="../gcc-4.5/changes.html#obsoleted">configurations obsoleted
+    in GCC 4.5</a>.</li>
+
 </ul>
 
 <h2>General Optimizer Improvements</h2>

-- 
Joseph S. Myers
joseph@codesourcery.com