* include/atomic.h: Define catomic_and if not already defined.
* sysdeps/x86_64/bits/atomic.h: Define catomic_and. * sysdeps/i386/i486/bits/atomic.h: Likewise.
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@ -1,3 +1,9 @@
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2009-02-08 Ulrich Drepper <drepper@redhat.com>
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* include/atomic.h: Define catomic_and if not already defined.
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* sysdeps/x86_64/bits/atomic.h: Define catomic_and.
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* sysdeps/i386/i486/bits/atomic.h: Likewise.
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2009-02-07 Ulrich Drepper <drepper@redhat.com>
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* malloc/malloc.c (_int_free): Second argument is now mchunkptr.
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@ -1,5 +1,5 @@
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/* Internal macros for atomic operations for GNU C Library.
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Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
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Copyright (C) 2002-2006, 2009 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@ -415,6 +415,22 @@
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} while (0)
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#endif
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#ifndef catomic_and
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# define catomic_and(mem, mask) \
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do { \
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__typeof (*(mem)) __atg20_old; \
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__typeof (mem) __atg20_memp = (mem); \
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__typeof (*(mem)) __atg20_mask = (mask); \
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\
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do \
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__atg20_old = (*__atg20_memp); \
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while (__builtin_expect \
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(catomic_compare_and_exchange_bool_acq (__atg20_memp, \
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__atg20_old & __atg20_mask,\
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__atg20_old), 0)); \
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} while (0)
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#endif
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/* Atomically *mem &= mask and return the old value of *mem. */
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#ifndef atomic_and_val
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# define atomic_and_val(mem, mask) \
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@ -1,4 +1,4 @@
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/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
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/* Copyright (C) 2002-2004, 2006, 2007, 2009 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@ -500,24 +500,34 @@ typedef uintmax_t uatomic_max_t;
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#define atomic_delay() asm ("rep; nop")
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#define atomic_and(mem, mask) \
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#define __arch_and_body(lock, mem, mask) \
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do { \
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if (sizeof (*mem) == 1) \
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__asm __volatile (LOCK_PREFIX "andb %b1, %0" \
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__asm __volatile (lock "andb %b1, %0" \
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: "=m" (*mem) \
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: "iq" (mask), "m" (*mem)); \
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: "iq" (mask), "m" (*mem), \
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"i" (offsetof (tcbhead_t, multiple_threads))); \
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else if (sizeof (*mem) == 2) \
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__asm __volatile (LOCK_PREFIX "andw %w1, %0" \
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__asm __volatile (lock "andw %w1, %0" \
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: "=m" (*mem) \
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: "ir" (mask), "m" (*mem)); \
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: "ir" (mask), "m" (*mem), \
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"i" (offsetof (tcbhead_t, multiple_threads))); \
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else if (sizeof (*mem) == 4) \
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__asm __volatile (LOCK_PREFIX "andl %1, %0" \
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__asm __volatile (lock "andl %1, %0" \
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: "=m" (*mem) \
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: "ir" (mask), "m" (*mem)); \
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: "ir" (mask), "m" (*mem), \
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"i" (offsetof (tcbhead_t, multiple_threads))); \
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else \
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abort (); \
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} while (0)
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#define __arch_cprefix \
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"cmpl $0, %%gs:%P3\n\tje 0f\n\tlock\n0:\t"
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#define atomic_and(mem, mask) __arch_and_body (LOCK_PREFIX, mem, mask)
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#define catomic_and(mem, mask) __arch_and_body (__arch_cprefix, mem, mask)
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#define __arch_or_body(lock, mem, mask) \
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do { \
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#define atomic_or(mem, mask) __arch_or_body (LOCK_PREFIX, mem, mask)
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#define __arch_or_cprefix \
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"cmpl $0, %%gs:%P3\n\tje 0f\n\tlock\n0:\t"
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#define catomic_or(mem, mask) __arch_or_body (__arch_or_cprefix, mem, mask)
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#define catomic_or(mem, mask) __arch_or_body (__arch_cprefix, mem, mask)
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@ -1,4 +1,4 @@
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/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
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/* Copyright (C) 2002-2004, 2006, 2007, 2009 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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@ -437,26 +437,37 @@ typedef uintmax_t uatomic_max_t;
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#define atomic_delay() asm ("rep; nop")
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#define atomic_and(mem, mask) \
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#define __arch_and_body(lock, mem, mask) \
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do { \
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if (sizeof (*mem) == 1) \
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__asm __volatile (LOCK_PREFIX "andb %b1, %0" \
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__asm __volatile (lock "andb %b1, %0" \
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: "=m" (*mem) \
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: "iq" (mask), "m" (*mem)); \
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: "iq" (mask), "m" (*mem), \
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"i" (offsetof (tcbhead_t, multiple_threads))); \
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else if (sizeof (*mem) == 2) \
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__asm __volatile (LOCK_PREFIX "andw %w1, %0" \
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__asm __volatile (lock "andw %w1, %0" \
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: "=m" (*mem) \
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: "ir" (mask), "m" (*mem)); \
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: "ir" (mask), "m" (*mem), \
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"i" (offsetof (tcbhead_t, multiple_threads))); \
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else if (sizeof (*mem) == 4) \
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__asm __volatile (LOCK_PREFIX "andl %1, %0" \
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__asm __volatile (lock "andl %1, %0" \
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: "=m" (*mem) \
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: "ir" (mask), "m" (*mem)); \
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: "ir" (mask), "m" (*mem), \
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"i" (offsetof (tcbhead_t, multiple_threads))); \
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else \
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__asm __volatile (LOCK_PREFIX "andq %q1, %0" \
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__asm __volatile (lock "andq %q1, %0" \
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: "=m" (*mem) \
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: "ir" (mask), "m" (*mem)); \
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: "ir" (mask), "m" (*mem), \
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"i" (offsetof (tcbhead_t, multiple_threads))); \
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} while (0)
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#define __arch_cprefix \
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"cmpl $0, %%fs:%P3\n\tje 0f\n\tlock\n0:\t"
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#define atomic_and(mem, mask) __arch_and_body (LOCK_PREFIX, mem, mask)
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#define catomic_and(mem, mask) __arch_and_body (__arch_cprefix, mem, mask)
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#define __arch_or_body(lock, mem, mask) \
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do { \
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@ -484,7 +495,4 @@ typedef uintmax_t uatomic_max_t;
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#define atomic_or(mem, mask) __arch_or_body (LOCK_PREFIX, mem, mask)
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#define __arch_or_cprefix \
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"cmpl $0, %%fs:%P3\n\tje 0f\n\tlock\n0:\t"
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#define catomic_or(mem, mask) __arch_or_body (__arch_or_cprefix, mem, mask)
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#define catomic_or(mem, mask) __arch_or_body (__arch_cprefix, mem, mask)
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