Re: Remove tilegx port

[Jeff Law <law@redhat.com>]

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On 04/27/2018 11:42 AM, Richard Biener wrote:
> On April 27, 2018 7:26:19 PM GMT+02:00, Jeff Law <law@redhat.com> wrote:
>> On 04/27/2018 09:36 AM, Joseph Myers wrote:
>>> Since tile support has been removed from the Linux kernel for 4.17,
>>> this patch removes the (unmaintained) port to tilegx from glibc (the
>>> tilepro support having been previously removed).  This reflects the
>>> general principle that a glibc port needs upstream support for the
>>> architecture in all the components it build-depends on (so binutils,
>>> GCC and the Linux kernel, for the normal case of a port supporting
>> the
>>> Linux kernel but no other OS), in order to be maintainable.
>>>
>>> Apart from removal of sysdeps/tile and sysdeps/unix/sysv/linux/tile
>>> (omitted from the diffs below), there are updates to various comments
>>> referencing tile for which removal of those references seemed
>>> appropriate.  The configuration is removed from README and from
>>> build-many-glibcs.py.  contrib.texi keeps mention of removed
>>> contributions, but I updated Chris Metcalf's entry to reflect that he
>>> also contributed the non-removed support for the generic Linux kernel
>>> syscall interface.  __ASSUME_FADVISE64_64_NO_ALIGN support is
>> removed,
>>> as it was only used by tile.
>> Given tilegx/tilepro removal from the kernel and glibc, should we go
>> ahead and deprecate them in GCC?  The only tilegx/tilepro
>> configurations
>> are -linux.
> 
> Makes sense to me. Let's deprecate it for GCC 8 and remove from trunk. 
> 
> Richard. 
> 
>> Jeff
> 

Here's what I committed to the trunk and the release branch.  I'll
find/update the appropriate web page momentarily.

jeff

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diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4db67b8d069..f81b09f8739 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2018-04-27  Jeff Law  <law@redhat.com>
+
+	* config.gcc: Mark tile* targets as deprecated/obsolete.
+
 2018-04-27  Richard Biener  <rguenther@suse.de>
 
 	* config/aarch64/aarch64.c: Simplify ap.__stack advance and
diff --git a/gcc/config.gcc b/gcc/config.gcc
index e58494c1c17..a5defb0f005 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -237,6 +237,7 @@ md_file=
 # Obsolete configurations.
 case ${target} in
   powerpc*-*-*spe*			\
+  | tile*-*-*				\
  )
     if test "x$enable_obsolete" != xyes; then
       echo "*** Configuration ${target} is obsolete." >&2