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authorZack Weinberg <zackw@panix.com>2019-05-16 13:34:27 -0400
committerZack Weinberg <zackw@panix.com>2019-05-22 10:05:40 -0400
commita053e878494080f7070cf92890e546057236c9c9 (patch)
treec906e6ed1cb5ffd3f7ea460d521bd8317e8d855b /scripts
parent46ae07324b1cd50fbf8f37a076d6babcfca7c510 (diff)
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Remove support for PowerPC SPE extension (powerpc*-*-*gnuspe*).
GCC 9 dropped support for the SPE extensions to PowerPC, which means
powerpc*-*-*gnuspe* configurations are no longer buildable with that
compiler.  This ISA extension was peculiar to the “e500” line of
embedded PowerPC chips, which, as far as I can tell, are no longer
being manufactured, so I think we should follow suit.

This patch was developed by grepping for “e500”, “__SPE__”, and
“__NO_FPRS__”, and may not eliminate every vestige of SPE support.
Most uses of __NO_FPRS__ are left alone, as they are relevant to
normal embedded PowerPC with soft-float.

        * sysdeps/powerpc/preconfigure: Error out on powerpc-*-*gnuspe*
        host type.
        * scripts/build-many-glibcs.py: Remove powerpc-*-linux-gnuspe
        and powerpc-*-linux-gnuspe-e500v1 from list of build configurations.

        * sysdeps/powerpc/powerpc32/e500: Recursively delete.
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/e500: Recursively delete.
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/context-e500.h:
        Delete.

        * sysdeps/powerpc/fpu_control.h: Remove SPE variant.
        Issue an #error if used with a compiler in SPE-float mode.
        * sysdeps/powerpc/powerpc32/__longjmp_common.S
        * sysdeps/powerpc/powerpc32/setjmp_common.S
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S
        * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S:
        Remove code to preserve SPE register state.

        * sysdeps/unix/sysv/linux/powerpc/elision-lock.c
        * sysdeps/unix/sysv/linux/powerpc/elision-trylock.c
        * sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
        Remove __SPE__ ifndefs.
Diffstat (limited to 'scripts')
-rwxr-xr-xscripts/build-many-glibcs.py9
1 files changed, 0 insertions, 9 deletions
diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 6f9a35331f..c5821df25e 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -318,15 +318,6 @@ class Context(object):
         self.add_config(arch='powerpc64le',
                         os_name='linux-gnu',
                         gcc_cfg=['--disable-multilib', '--enable-secureplt'])
-        self.add_config(arch='powerpc',
-                        os_name='linux-gnuspe',
-                        gcc_cfg=['--disable-multilib', '--enable-secureplt',
-                                 '--enable-e500-double', '--enable-obsolete'])
-        self.add_config(arch='powerpc',
-                        os_name='linux-gnuspe',
-                        variant='e500v1',
-                        gcc_cfg=['--disable-multilib', '--enable-secureplt',
-                                 '--enable-obsolete'])
         self.add_config(arch='riscv64',
                         os_name='linux-gnu',
                         variant='rv64imac-lp64',