2022-01-01 18:54:23 +00:00
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/* Copyright (C) 2003-2022 Free Software Foundation, Inc.
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2012-01-10 05:38:42 +00:00
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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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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
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License along with the GNU C Library. If not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
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2012-01-10 05:38:42 +00:00
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#include <sysdep.h>
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2014-11-21 13:09:21 +00:00
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#define __HAVE_64B_ATOMICS 0
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2014-10-17 23:02:59 +00:00
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#define USE_ATOMIC_COMPILER_BUILTINS 0
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2017-06-06 07:41:56 +00:00
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/* XXX Is this actually correct? */
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#define ATOMIC_EXCHANGE_USES_CAS 1
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2012-01-10 05:38:42 +00:00
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/* Microblaze does not have byte and halfword forms of load and reserve and
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store conditional. So for microblaze we stub out the 8- and 16-bit forms. */
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#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \
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(abort (), 0)
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#define __arch_compare_and_exchange_bool_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)) __tmp; \
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__typeof (mem) __memp = (mem); \
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int test; \
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__asm __volatile ( \
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" addc r0, r0, r0;" \
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"1: lwx %0, %3, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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" cmp %1, %0, %4;" \
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" bnei %1, 2f;" \
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" swx %5, %3, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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"2:" \
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: "=&r" (__tmp), \
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"=&r" (test), \
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"=m" (*__memp) \
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: "r" (__memp), \
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"r" (oldval), \
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"r" (newval) \
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: "cc", "memory"); \
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__tmp; \
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})
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#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
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(abort (), (__typeof (*mem)) 0)
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#define atomic_compare_and_exchange_val_acq(mem, newval, oldval) \
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({ \
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__typeof (*(mem)) __result; \
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if (sizeof (*mem) == 4) \
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__result = __arch_compare_and_exchange_val_32_acq (mem, newval, oldval); \
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else if (sizeof (*mem) == 8) \
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__result = __arch_compare_and_exchange_val_64_acq (mem, newval, oldval); \
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else \
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abort (); \
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__result; \
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})
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#define atomic_compare_and_exchange_val_rel(mem, newval, oldval) \
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({ \
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__typeof (*(mem)) __result; \
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if (sizeof (*mem) == 4) \
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__result = __arch_compare_and_exchange_val_32_acq (mem, newval, oldval); \
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else if (sizeof (*mem) == 8) \
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__result = __arch_compare_and_exchange_val_64_acq (mem, newval, oldval); \
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else \
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abort (); \
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__result; \
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})
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#define __arch_atomic_exchange_32_acq(mem, value) \
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({ \
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__typeof (*(mem)) __tmp; \
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__typeof (mem) __memp = (mem); \
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int test; \
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__asm __volatile ( \
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" addc r0, r0, r0;" \
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"1: lwx %0, %4, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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" swx %3, %4, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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: "=&r" (__tmp), \
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"=&r" (test), \
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"=m" (*__memp) \
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: "r" (value), \
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"r" (__memp) \
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: "cc", "memory"); \
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__tmp; \
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})
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#define __arch_atomic_exchange_64_acq(mem, newval) \
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(abort (), (__typeof (*mem)) 0)
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#define atomic_exchange_acq(mem, value) \
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({ \
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__typeof (*(mem)) __result; \
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if (sizeof (*mem) == 4) \
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__result = __arch_atomic_exchange_32_acq (mem, value); \
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else if (sizeof (*mem) == 8) \
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__result = __arch_atomic_exchange_64_acq (mem, value); \
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else \
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abort (); \
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__result; \
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})
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#define atomic_exchange_rel(mem, value) \
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({ \
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__typeof (*(mem)) __result; \
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if (sizeof (*mem) == 4) \
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__result = __arch_atomic_exchange_32_acq (mem, value); \
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else if (sizeof (*mem) == 8) \
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__result = __arch_atomic_exchange_64_acq (mem, value); \
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else \
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abort (); \
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__result; \
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})
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#define __arch_atomic_exchange_and_add_32(mem, value) \
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({ \
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__typeof (*(mem)) __tmp; \
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__typeof (mem) __memp = (mem); \
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int test; \
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__asm __volatile ( \
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" addc r0, r0, r0;" \
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"1: lwx %0, %4, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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" add %1, %3, %0;" \
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" swx %1, %4, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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: "=&r" (__tmp), \
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"=&r" (test), \
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"=m" (*__memp) \
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: "r" (value), \
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"r" (__memp) \
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: "cc", "memory"); \
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__tmp; \
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})
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#define __arch_atomic_exchange_and_add_64(mem, value) \
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(abort (), (__typeof (*mem)) 0)
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#define atomic_exchange_and_add(mem, value) \
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({ \
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__typeof (*(mem)) __result; \
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if (sizeof (*mem) == 4) \
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__result = __arch_atomic_exchange_and_add_32 (mem, value); \
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else if (sizeof (*mem) == 8) \
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__result = __arch_atomic_exchange_and_add_64 (mem, value); \
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else \
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abort (); \
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__result; \
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})
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#define __arch_atomic_increment_val_32(mem) \
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({ \
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__typeof (*(mem)) __val; \
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int test; \
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__asm __volatile ( \
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" addc r0, r0, r0;" \
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"1: lwx %0, %3, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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" addi %0, %0, 1;" \
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" swx %0, %3, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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: "=&r" (__val), \
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"=&r" (test), \
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"=m" (*mem) \
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: "r" (mem), \
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"m" (*mem) \
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: "cc", "memory"); \
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__val; \
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})
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#define __arch_atomic_increment_val_64(mem) \
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(abort (), (__typeof (*mem)) 0)
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#define atomic_increment_val(mem) \
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({ \
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__typeof (*(mem)) __result; \
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if (sizeof (*(mem)) == 4) \
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__result = __arch_atomic_increment_val_32 (mem); \
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else if (sizeof (*(mem)) == 8) \
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__result = __arch_atomic_increment_val_64 (mem); \
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else \
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abort (); \
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__result; \
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})
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#define atomic_increment(mem) ({ atomic_increment_val (mem); (void) 0; })
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#define __arch_atomic_decrement_val_32(mem) \
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({ \
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__typeof (*(mem)) __val; \
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int test; \
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__asm __volatile ( \
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" addc r0, r0, r0;" \
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"1: lwx %0, %3, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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" rsubi %0, %0, 1;" \
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" swx %0, %3, r0;" \
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" addic %1, r0, 0;" \
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" bnei %1, 1b;" \
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: "=&r" (__val), \
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"=&r" (test), \
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"=m" (*mem) \
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: "r" (mem), \
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"m" (*mem) \
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: "cc", "memory"); \
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__val; \
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})
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#define __arch_atomic_decrement_val_64(mem) \
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(abort (), (__typeof (*mem)) 0)
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#define atomic_decrement_val(mem) \
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({ \
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__typeof (*(mem)) __result; \
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if (sizeof (*(mem)) == 4) \
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__result = __arch_atomic_decrement_val_32 (mem); \
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else if (sizeof (*(mem)) == 8) \
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__result = __arch_atomic_decrement_val_64 (mem); \
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else \
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abort (); \
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__result; \
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})
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#define atomic_decrement(mem) ({ atomic_decrement_val (mem); (void) 0; })
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