mirror of
https://sourceware.org/git/glibc.git
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* sysdeps/sparc/sparc32/bits/atomic.h: New file.
* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: New file. * sysdeps/sparc/sparc64/bits/atomic.h: New file. * sysdeps/sparc/sparc32/atomicity.h: Removed. * sysdeps/sparc/sparc32/sparcv9/atomicity.h: Removed. * sysdeps/sparc/sparc64/atomicity.h: Removed.
This commit is contained in:
Roland McGrath
parent
d692f3f8c3
commit
0a9d1b3b81
@ -1,3 +1,12 @@
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2003-03-31 Jakub Jelinek <jakub@redhat.com>
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* sysdeps/sparc/sparc32/bits/atomic.h: New file.
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* sysdeps/sparc/sparc32/sparcv9/bits/atomic.h: New file.
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* sysdeps/sparc/sparc64/bits/atomic.h: New file.
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* sysdeps/sparc/sparc32/atomicity.h: Removed.
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* sysdeps/sparc/sparc32/sparcv9/atomicity.h: Removed.
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* sysdeps/sparc/sparc64/atomicity.h: Removed.
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2003-03-30 Roland McGrath <roland@redhat.com>
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* scripts/abilist.awk: Grok .opd foo plus .text .foo as "foo F" alone.
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@ -1,98 +0,0 @@
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/* Low-level functions for atomic operations. Sparc32 version.
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
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||||
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
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||||
|
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
|
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _ATOMICITY_H
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#define _ATOMICITY_H 1
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#include <inttypes.h>
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static int
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__attribute__ ((unused))
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exchange_and_add (volatile uint32_t *mem, int val)
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{
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static unsigned char lock;
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int result, tmp;
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__asm__ __volatile__("1: ldstub [%1], %0\n\t"
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" cmp %0, 0\n\t"
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" bne 1b\n\t"
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" nop"
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: "=&r" (tmp)
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: "r" (&lock)
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: "memory");
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result = *mem;
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*mem += val;
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__asm__ __volatile__("stb %%g0, [%0]"
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: /* no outputs */
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: "r" (&lock)
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: "memory");
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return result;
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}
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static void
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__attribute__ ((unused))
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atomic_add (volatile uint32_t *mem, int val)
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{
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static unsigned char lock;
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int tmp;
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__asm__ __volatile__("1: ldstub [%1], %0\n\t"
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" cmp %0, 0\n\t"
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" bne 1b\n\t"
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" nop"
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: "=&r" (tmp)
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: "r" (&lock)
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: "memory");
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*mem += val;
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__asm__ __volatile__("stb %%g0, [%0]"
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: /* no outputs */
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: "r" (&lock)
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: "memory");
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}
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static int
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__attribute__ ((unused))
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compare_and_swap (volatile long int *p, long int oldval, long int newval)
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{
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static unsigned char lock;
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int ret, tmp;
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__asm__ __volatile__("1: ldstub [%1], %0\n\t"
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" cmp %0, 0\n\t"
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" bne 1b\n\t"
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" nop"
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: "=&r" (tmp)
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: "r" (&lock)
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: "memory");
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if (*p != oldval)
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ret = 0;
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else
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{
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*p = newval;
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ret = 1;
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}
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__asm__ __volatile__("stb %%g0, [%0]"
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: /* no outputs */
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: "r" (&lock)
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: "memory");
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return ret;
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}
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#endif /* atomicity.h */
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75
sysdeps/sparc/sparc32/bits/atomic.h
Normal file
75
sysdeps/sparc/sparc32/bits/atomic.h
Normal file
@ -0,0 +1,75 @@
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/* Atomic operations. sparc32 version.
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Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
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|
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
|
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|
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You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _BITS_ATOMIC_H
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#define _BITS_ATOMIC_H 1
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/* We have no compare and swap, just test and set.
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The following implementation contends on one single global lock
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per library and assumes no variable will be accessed using atomic.h
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macros from two different libraries. */
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volatile unsigned char __sparc32_atomic_lock
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__attribute__ ((nocommon, section (".gnu.linkonce.b.__sparc32_atomic_lock"),
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visibility ("hidden")));
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#define __sparc32_atomic_do_lock() \
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do \
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{ \
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unsigned int __old_lock; \
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do \
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__asm ("ldstub %1, %0" \
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: "=r" (__old_lock), "=m" (__sparc32_atomic_lock) \
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: "m" (__sparc32_atomic_lock)); \
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while (__old_lock); \
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} \
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while (0)
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#define __sparc32_atomic_do_unlock() \
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do __sparc32_atomic_lock = 0; while (0)
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/* The only basic operation needed is compare and exchange. */
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#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
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({ __typeof (mem) __acev_memp = (mem); \
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__typeof (*mem) __acev_ret; \
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__typeof (*mem) __acev_newval = (newval); \
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\
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__sparc32_atomic_do_lock (); \
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__acev_ret = *__acev_memp; \
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if (__acev_ret == (oldval)) \
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*__acev_memp = __acev_newval; \
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__sparc32_atomic_do_unlock (); \
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__acev_ret; })
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#define atomic_compare_and_exchange_bool_acq(mem, newval, oldval) \
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({ __typeof (mem) __aceb_memp = (mem); \
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int __aceb_ret; \
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__typeof (*mem) __aceb_newval = (newval); \
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\
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__sparc32_atomic_do_lock (); \
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__aceb_ret = 0; \
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if (*__aceb_memp == (oldval)) \
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*__aceb_memp = __aceb_newval; \
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else \
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__aceb_ret = 1; \
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__sparc32_atomic_do_unlock (); \
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__aceb_ret; })
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#endif /* bits/atomic.h */
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@ -1,82 +0,0 @@
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/* Low-level functions for atomic operations. Sparc32+v9 version.
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Copyright (C) 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
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License as published by the Free Software Foundation; either
|
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version 2.1 of the License, or (at your option) any later version.
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|
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
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Lesser General Public License for more details.
|
||||
|
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You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _ATOMICITY_H
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#define _ATOMICITY_H 1
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#include <inttypes.h>
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static inline int
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__attribute__ ((unused))
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exchange_and_add (volatile uint32_t *mem, int val)
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{
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uint32_t tmp1, tmp2;
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__asm__ __volatile__("1: lduw [%2], %0\n\t"
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" add %0, %3, %1\n\t"
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" cas [%2], %0, %1\n\t"
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" sub %0, %1, %0\n\t"
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" brnz,pn %0, 1b\n\t"
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" nop"
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: "=&r" (tmp1), "=&r" (tmp2)
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: "r" (mem), "r" (val)
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: "memory");
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return tmp2;
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}
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static inline void
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__attribute__ ((unused))
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atomic_add (volatile uint32_t *mem, int val)
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{
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uint32_t tmp1, tmp2;
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__asm__ __volatile__("1: lduw [%2], %0\n\t"
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" add %0, %3, %1\n\t"
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" cas [%2], %0, %1\n\t"
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" sub %0, %1, %0\n\t"
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" brnz,pn %0, 1b\n\t"
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" nop"
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: "=&r" (tmp1), "=&r" (tmp2)
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: "r" (mem), "r" (val)
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: "memory");
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}
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static inline int
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__attribute__ ((unused))
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compare_and_swap (volatile long int *p, long int oldval, long int newval)
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{
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register long int tmp, tmp2;
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__asm__ __volatile__("1: lduw [%4], %0\n\t"
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" mov %2, %1\n\t"
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" cmp %0, %3\n\t"
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" bne,a,pn %%xcc, 2f\n\t"
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" mov 0, %0\n\t"
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" cas [%4], %0, %1\n\t"
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" sub %0, %1, %0\n\t"
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" brnz,pn %0, 1b\n\t"
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" mov 1, %0\n\t"
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"2:"
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: "=&r" (tmp), "=&r" (tmp2)
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: "r" (newval), "r" (oldval), "r" (p)
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: "memory");
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return tmp;
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}
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#endif /* atomicity.h */
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88
sysdeps/sparc/sparc32/sparcv9/bits/atomic.h
Normal file
88
sysdeps/sparc/sparc32/sparcv9/bits/atomic.h
Normal file
@ -0,0 +1,88 @@
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/* Atomic operations. sparcv9 version.
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Copyright (C) 2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
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The GNU C Library is free software; you can redistribute it and/or
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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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
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#include <stdint.h>
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typedef int8_t atomic8_t;
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typedef uint8_t uatomic8_t;
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typedef int_fast8_t atomic_fast8_t;
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typedef uint_fast8_t uatomic_fast8_t;
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typedef int16_t atomic16_t;
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typedef uint16_t uatomic16_t;
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typedef int_fast16_t atomic_fast16_t;
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typedef uint_fast16_t uatomic_fast16_t;
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typedef int32_t atomic32_t;
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typedef uint32_t uatomic32_t;
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typedef int_fast32_t atomic_fast32_t;
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typedef uint_fast32_t uatomic_fast32_t;
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typedef int64_t atomic64_t;
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typedef uint64_t uatomic64_t;
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typedef int_fast64_t atomic_fast64_t;
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typedef uint_fast64_t uatomic_fast64_t;
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typedef intptr_t atomicptr_t;
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typedef uintptr_t uatomicptr_t;
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typedef intmax_t atomic_max_t;
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typedef uintmax_t uatomic_max_t;
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#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
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(abort (), 0)
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#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
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(abort (), 0)
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#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
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({ \
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__typeof (*(mem)) __acev_tmp; \
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__typeof (mem) __acev_mem = (mem); \
|
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__asm __volatile ("cas [%4], %2, %0" \
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: "=r" (__acev_tmp), "=m" (*__acev_mem) \
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: "r" (oldval), "m" (*__acev_mem), "r" (__acev_mem), \
|
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"0" (newval)); \
|
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__acev_tmp; })
|
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|
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/* This can be implemented if needed. */
|
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#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
|
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(abort (), 0)
|
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|
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#define atomic_exchange(mem, newvalue) \
|
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({ __typeof (*(mem)) __oldval; \
|
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__typeof (mem) __memp = (mem); \
|
||||
__typeof (*(mem)) __value = (newvalue); \
|
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\
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if (sizeof (*(mem)) == 4) \
|
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__asm ("swap %0, %1" \
|
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: "=m" (*__memp), "=r" (__oldval) \
|
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: "m" (*__memp), "1" (__value)); \
|
||||
else \
|
||||
abort (); \
|
||||
__oldval; })
|
||||
|
||||
#define atomic_full_barrier() \
|
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__asm __volatile ("membar #LoadLoad | #LoadStore" \
|
||||
" | #StoreLoad | #StoreStore" : : : "memory")
|
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#define atomic_read_barrier() \
|
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__asm __volatile ("membar #LoadLoad | #LoadStore" : : : "memory")
|
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#define atomic_write_barrier() \
|
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__asm __volatile ("membar #StoreLoad | #StoreStore" : : : "memory")
|
||||
@ -1,82 +0,0 @@
|
||||
/* Low-level functions for atomic operations. Sparc64 version.
|
||||
Copyright (C) 1999 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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#ifndef _ATOMICITY_H
|
||||
#define _ATOMICITY_H 1
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
static inline int
|
||||
__attribute__ ((unused))
|
||||
exchange_and_add (volatile uint32_t *mem, int val)
|
||||
{
|
||||
uint32_t tmp1, tmp2;
|
||||
|
||||
__asm__ __volatile__("1: lduw [%2], %0\n\t"
|
||||
" add %0, %3, %1\n\t"
|
||||
" cas [%2], %0, %1\n\t"
|
||||
" sub %0, %1, %0\n\t"
|
||||
" brnz,pn %0, 1b\n\t"
|
||||
" nop"
|
||||
: "=&r" (tmp1), "=&r" (tmp2)
|
||||
: "r" (mem), "r" (val)
|
||||
: "memory");
|
||||
return tmp2;
|
||||
}
|
||||
|
||||
static inline void
|
||||
__attribute__ ((unused))
|
||||
atomic_add (volatile uint32_t *mem, int val)
|
||||
{
|
||||
uint32_t tmp1, tmp2;
|
||||
|
||||
__asm__ __volatile__("1: lduw [%2], %0\n\t"
|
||||
" add %0, %3, %1\n\t"
|
||||
" cas [%2], %0, %1\n\t"
|
||||
" sub %0, %1, %0\n\t"
|
||||
" brnz,pn %0, 1b\n\t"
|
||||
" nop"
|
||||
: "=&r" (tmp1), "=&r" (tmp2)
|
||||
: "r" (mem), "r" (val)
|
||||
: "memory");
|
||||
}
|
||||
|
||||
static inline int
|
||||
__attribute__ ((unused))
|
||||
compare_and_swap (volatile long int *p, long int oldval, long int newval)
|
||||
{
|
||||
register long int tmp, tmp2;
|
||||
|
||||
__asm__ __volatile__("1: ldx [%4], %0\n\t"
|
||||
" mov %2, %1\n\t"
|
||||
" cmp %0, %3\n\t"
|
||||
" bne,a,pn %%xcc, 2f\n\t"
|
||||
" mov 0, %0\n\t"
|
||||
" casx [%4], %0, %1\n\t"
|
||||
" sub %0, %1, %0\n\t"
|
||||
" brnz,pn %0, 1b\n\t"
|
||||
" mov 1, %0\n\t"
|
||||
"2:"
|
||||
: "=&r" (tmp), "=&r" (tmp2)
|
||||
: "r" (newval), "r" (oldval), "r" (p)
|
||||
: "memory");
|
||||
return tmp;
|
||||
}
|
||||
|
||||
#endif /* atomicity.h */
|
||||
103
sysdeps/sparc/sparc64/bits/atomic.h
Normal file
103
sysdeps/sparc/sparc64/bits/atomic.h
Normal file
@ -0,0 +1,103 @@
|
||||
/* Atomic operations. sparc64 version.
|
||||
Copyright (C) 2003 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
|
||||
|
||||
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, write to the Free
|
||||
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||||
02111-1307 USA. */
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
typedef int8_t atomic8_t;
|
||||
typedef uint8_t uatomic8_t;
|
||||
typedef int_fast8_t atomic_fast8_t;
|
||||
typedef uint_fast8_t uatomic_fast8_t;
|
||||
|
||||
typedef int16_t atomic16_t;
|
||||
typedef uint16_t uatomic16_t;
|
||||
typedef int_fast16_t atomic_fast16_t;
|
||||
typedef uint_fast16_t uatomic_fast16_t;
|
||||
|
||||
typedef int32_t atomic32_t;
|
||||
typedef uint32_t uatomic32_t;
|
||||
typedef int_fast32_t atomic_fast32_t;
|
||||
typedef uint_fast32_t uatomic_fast32_t;
|
||||
|
||||
typedef int64_t atomic64_t;
|
||||
typedef uint64_t uatomic64_t;
|
||||
typedef int_fast64_t atomic_fast64_t;
|
||||
typedef uint_fast64_t uatomic_fast64_t;
|
||||
|
||||
typedef intptr_t atomicptr_t;
|
||||
typedef uintptr_t uatomicptr_t;
|
||||
typedef intmax_t atomic_max_t;
|
||||
typedef uintmax_t uatomic_max_t;
|
||||
|
||||
|
||||
#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
|
||||
(abort (), 0)
|
||||
|
||||
#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
|
||||
(abort (), 0)
|
||||
|
||||
#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
|
||||
({ \
|
||||
__typeof (*(mem)) __acev_tmp; \
|
||||
__typeof (mem) __acev_mem = (mem); \
|
||||
__asm __volatile ("cas [%4], %2, %0" \
|
||||
: "=r" (__acev_tmp), "=m" (*__acev_mem) \
|
||||
: "r" (oldval), "m" (*__acev_mem), "r" (__acev_mem), \
|
||||
"0" (newval)); \
|
||||
__acev_tmp; })
|
||||
|
||||
#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
|
||||
({ \
|
||||
__typeof (*(mem)) __acev_tmp; \
|
||||
__typeof (mem) __acev_mem = (mem); \
|
||||
__asm __volatile ("casx [%4], %2, %0" \
|
||||
: "=r" (__acev_tmp), "=m" (*__acev_mem) \
|
||||
: "r" ((long) (oldval)), "m" (*__acev_mem), \
|
||||
"r" (__acev_mem), "0" ((long) (newval))); \
|
||||
__acev_tmp; })
|
||||
|
||||
#define atomic_exchange(mem, newvalue) \
|
||||
({ __typeof (*(mem)) __oldval, __val; \
|
||||
__typeof (mem) __memp = (mem); \
|
||||
__typeof (*(mem)) __value = (newvalue); \
|
||||
\
|
||||
if (sizeof (*(mem)) == 4) \
|
||||
__asm ("swap %0, %1" \
|
||||
: "=m" (*__memp), "=r" (__oldval) \
|
||||
: "m" (*__memp), "1" (__value)); \
|
||||
else \
|
||||
{ \
|
||||
__val = *__memp; \
|
||||
do \
|
||||
{ \
|
||||
__oldval = __val; \
|
||||
__val = atomic_compare_and_exchange_val_acq (__memp, __value, \
|
||||
__oldval); \
|
||||
} \
|
||||
while (__builtin_expect (__val != __oldval, 0)); \
|
||||
} \
|
||||
__oldval; })
|
||||
|
||||
#define atomic_full_barrier() \
|
||||
__asm __volatile ("membar #LoadLoad | #LoadStore" \
|
||||
" | #StoreLoad | #StoreStore" : : : "memory")
|
||||
#define atomic_read_barrier() \
|
||||
__asm __volatile ("membar #LoadLoad | #LoadStore" : : : "memory")
|
||||
#define atomic_write_barrier() \
|
||||
__asm __volatile ("membar #StoreLoad | #StoreStore" : : : "memory")
|
||||
Loading…
Reference in New Issue
Block a user