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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 /sysdeps/unix/sysv/linux/powerpc/elision-lock.c | |
| parent | 46ae07324b1cd50fbf8f37a076d6babcfca7c510 (diff) | |
| download | glibc-a053e878494080f7070cf92890e546057236c9c9.tar glibc-a053e878494080f7070cf92890e546057236c9c9.tar.gz glibc-a053e878494080f7070cf92890e546057236c9c9.tar.bz2 glibc-a053e878494080f7070cf92890e546057236c9c9.zip | |
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 'sysdeps/unix/sysv/linux/powerpc/elision-lock.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/elision-lock.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/elision-lock.c b/sysdeps/unix/sysv/linux/powerpc/elision-lock.c index f0e3dcab76..7564507890 100644 --- a/sysdeps/unix/sysv/linux/powerpc/elision-lock.c +++ b/sysdeps/unix/sysv/linux/powerpc/elision-lock.c @@ -45,7 +45,6 @@ int __lll_lock_elision (int *lock, short *adapt_count, EXTRAARG int pshared) { -#ifndef __SPE__ /* adapt_count is accessed concurrently but is just a hint. Thus, use atomic accesses but relaxed MO is sufficient. */ if (atomic_load_relaxed (adapt_count) > 0) @@ -83,6 +82,5 @@ __lll_lock_elision (int *lock, short *adapt_count, EXTRAARG int pshared) aconf.skip_lock_out_of_tbegin_retries); use_lock: -#endif return LLL_LOCK ((*lock), pshared); } |