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| author | Zack Weinberg <zackw@panix.com> | 2019-05-16 13:34:27 -0400 |
|---|---|---|
| committer | Zack Weinberg <zackw@panix.com> | 2019-05-22 10:05:40 -0400 |
| commit | a053e878494080f7070cf92890e546057236c9c9 (patch) | |
| tree | c906e6ed1cb5ffd3f7ea460d521bd8317e8d855b /NEWS | |
| parent | 46ae07324b1cd50fbf8f37a076d6babcfca7c510 (diff) | |
| download | glibc-a053e878494080f7070cf92890e546057236c9c9.zip glibc-a053e878494080f7070cf92890e546057236c9c9.tar.gz glibc-a053e878494080f7070cf92890e546057236c9c9.tar.bz2 | |
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 'NEWS')
| -rw-r--r-- | NEWS | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -54,6 +54,10 @@ Deprecated and removed features, and other changes affecting compatibility: * With --enable-bind-now, installed programs are now linked with the BIND_NOW flag. +* Support for the PowerPC SPE ISA extension (powerpc-*-*gnuspe* + configurations) has been removed, following the deprecation of this + subarchitecture in version 8 of GCC, and its removal in version 9. + Changes to build and runtime requirements: * GCC 6.2 or later is required to build the GNU C Library. |