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author | Zack Weinberg <zackw@panix.com> | 2019-05-16 13:34:27 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2019-05-22 10:05:40 -0400 |
commit | a053e878494080f7070cf92890e546057236c9c9 (patch) | |
tree | c906e6ed1cb5ffd3f7ea460d521bd8317e8d855b /sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.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/powerpc/powerpc32/e500/nofpu/fclrexcpt.c')
-rw-r--r-- | sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.c | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.c b/sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.c deleted file mode 100644 index 0bdf7ed76f..0000000000 --- a/sysdeps/powerpc/powerpc32/e500/nofpu/fclrexcpt.c +++ /dev/null @@ -1,53 +0,0 @@ -/* Clear given exceptions in current floating-point environment. e500 version. - Copyright (C) 2004-2019 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <fenv_libc.h> - -#undef feclearexcept -int -__feclearexcept (int excepts) -{ - unsigned int fpescr; - int excepts_spe = __fexcepts_to_spe (excepts); - - /* Get the current state. */ - fpescr = fegetenv_register (); - - /* Clear the relevant bits. */ - fpescr &= ~excepts_spe; - - /* Put the new state in effect. */ - fesetenv_register (fpescr); - - /* Let the kernel know if the "invalid" or "underflow" bit was - cleared. */ - if (excepts & (FE_INVALID | FE_UNDERFLOW)) - __fe_note_change (); - - /* Success. */ - return 0; -} - -#include <shlib-compat.h> -#if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) -strong_alias (__feclearexcept, __old_feclearexcept) -compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1); -#endif - -libm_hidden_ver (__feclearexcept, feclearexcept) -versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2); |