Use i486 version.
authordrepper <drepper>
Wed, 4 Dec 2002 00:54:53 +0000 (00:54 +0000)
committerdrepper <drepper>
Wed, 4 Dec 2002 00:54:53 +0000 (00:54 +0000)
nptl/sysdeps/i386/i686/bits/atomic.h

index 4389987..9cb58d5 100644 (file)
    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;
-
-
-#ifndef LOCK
-# ifdef UP
-#  define LOCK /* nothing */
-# else
-#  define LOCK "lock;"
-# endif
-#endif
-
-
-#define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \
-  ({ unsigned char ret;                                                              \
-     __asm __volatile (LOCK "cmpxchgb %b2, %1; setne %0"                     \
-                      : "=a" (ret), "=m" (*mem)                              \
-                      : "q" (newval), "1" (*mem), "0" (oldval));             \
-     ret; })
-
-#define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \
-  ({ unsigned char ret;                                                              \
-     __asm __volatile (LOCK "cmpxchgw %w2, %1; setne %0"                     \
-                      : "=a" (ret), "=m" (*mem)                              \
-                      : "r" (newval), "1" (*mem), "0" (oldval));             \
-     ret; })
-
-#define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \
-  ({ unsigned char ret;                                                              \
-     __asm __volatile (LOCK "cmpxchgl %2, %1; setne %0"                              \
-                      : "=a" (ret), "=m" (*mem)                              \
-                      : "r" (newval), "1" (*mem), "0" (oldval));             \
-     ret; })
-
-/* XXX We do not really need 64-bit compare-and-exchange.  At least
-   not in the moment.  Using it would mean causing portability
-   problems since not many other 32-bit architectures have support for
-   such an operation.  So don't define any code for now.  If it is
-   really going to be used the code below can be used.  */
-#if 1
-# define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
-  (abort (), 0)
-#else
-# ifdef __PIC__
-#  define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
-  ({ unsigned char ret;                                                              \
-     int ignore;                                                             \
-     __asm __volatile ("xchgl %3, %%ebx\n\t"                                 \
-                      LOCK "cmpxchg8b %2, %1\n\t"                            \
-                      "setne %0\n\t"                                         \
-                      "xchgl %3, %%ebx"                                      \
-                      : "=a" (ret), "=m" (*mem), "=d" (ignore)               \
-                      : "DS" (((unsigned long long int) (newval))            \
-                              & 0xffffffff),                                 \
-                        "c" (((unsigned long long int) (newval)) >> 32),     \
-                        "1" (*mem), "0" (((unsigned long long int) (oldval)) \
-                                         & 0xffffffff),                      \
-                        "2" (((unsigned long long int) (oldval)) >> 32));    \
-     ret; })
-# else
-#  define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \
-  ({ unsigned char ret;                                                              \
-     int ignore;                                                             \
-     __asm __volatile (LOCK "cmpxchg8b %2, %1; setne %0"                     \
-                      : "=a" (ret), "=m" (*mem), "=d" (ignore)               \
-                      : "b" (((unsigned long long int) (newval))             \
-                             & 0xffffffff),                                  \
-                         "c" (((unsigned long long int) (newval)) >> 32),    \
-                        "1" (*mem), "0" (((unsigned long long int) (oldval)) \
-                                         & 0xffffffff),                      \
-                        "2" (((unsigned long long int) (oldval)) >> 32));    \
-     ret; })
-# endif
-#endif
-
-
-#define atomic_exchange_and_add(mem, value) \
-  ({ __typeof (*mem) result;                                                 \
-     if (sizeof (*mem) == 1)                                                 \
-       __asm __volatile (LOCK "xaddb %b0, %1"                                \
-                        : "=r" (result), "=m" (*mem)                         \
-                        : "0" (value), "1" (*mem));                          \
-     else if (sizeof (*mem) == 2)                                            \
-       __asm __volatile (LOCK "xaddw %w0, %1"                                \
-                        : "=r" (result), "=m" (*mem)                         \
-                        : "0" (value), "1" (*mem));                          \
-     else if (sizeof (*mem) == 4)                                            \
-       __asm __volatile (LOCK "xaddl %0, %1"                                 \
-                        : "=r" (result), "=m" (*mem)                         \
-                        : "0" (value), "1" (*mem));                          \
-     else                                                                    \
-       {                                                                     \
-        __typeof (value) addval = (value);                                   \
-        __typeof (*mem) oldval;                                              \
-        __typeof (mem) memp = (mem);                                         \
-        do                                                                   \
-          result = (oldval = *memp) + addval;                                \
-        while (! __arch_compare_and_exchange_64_acq (memp, result, oldval)); \
-       }                                                                     \
-     result; })
-
-
-#define atomic_add(mem, value) \
-  (void) ({ if (__builtin_constant_p (value) && (value) == 1)                \
-             atomic_increment (mem);                                         \
-           else if (__builtin_constant_p (value) && (value) == 1)            \
-             atomic_decrement (mem);                                         \
-           else if (sizeof (*mem) == 1)                                      \
-             __asm __volatile (LOCK "addb %b1, %0"                           \
-                               : "=m" (*mem)                                 \
-                               : "ir" (value), "0" (*mem));                  \
-           else if (sizeof (*mem) == 2)                                      \
-             __asm __volatile (LOCK "addw %w1, %0"                           \
-                               : "=m" (*mem)                                 \
-                               : "ir" (value), "0" (*mem));                  \
-           else if (sizeof (*mem) == 4)                                      \
-             __asm __volatile (LOCK "addl %1, %0"                            \
-                               : "=m" (*mem)                                 \
-                               : "ir" (value), "0" (*mem));                  \
-           else                                                              \
-             {                                                               \
-               __typeof (value) addval = (value);                            \
-               __typeof (*mem) oldval;                                       \
-               __typeof (mem) memp = (mem);                                  \
-               do                                                            \
-                 oldval = *memp;                                             \
-               while (! __arch_compare_and_exchange_64_acq (memp,            \
-                                                            oldval + addval, \
-                                                            oldval));        \
-             }                                                               \
-           })
-
-
-#define atomic_add_negative(mem, value) \
-  ({ unsigned char __result;                                                 \
-     if (sizeof (*mem) == 1)                                                 \
-       __asm __volatile (LOCK "addb %b2, %0; sets %1"                        \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "iq" (value), "0" (*mem));                         \
-     else if (sizeof (*mem) == 2)                                            \
-       __asm __volatile (LOCK "addw %w2, %0; sets %1"                        \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "ir" (value), "0" (*mem));                         \
-     else if (sizeof (*mem) == 4)                                            \
-       __asm __volatile (LOCK "addl %2, %0; sets %1"                         \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "ir" (value), "0" (*mem));                         \
-     else                                                                    \
-       abort ();                                                             \
-     __result; })
-
-
-#define atomic_add_zero(mem, value) \
-  ({ unsigned char __result;                                                 \
-     if (sizeof (*mem) == 1)                                                 \
-       __asm __volatile (LOCK "addb %b2, %0; setz %1"                        \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "ir" (value), "0" (*mem));                         \
-     else if (sizeof (*mem) == 2)                                            \
-       __asm __volatile (LOCK "addw %w2, %0; setz %1"                        \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "ir" (value), "0" (*mem));                         \
-     else if (sizeof (*mem) == 4)                                            \
-       __asm __volatile (LOCK "addl %2, %0; setz %1"                         \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "ir" (value), "0" (*mem));                         \
-     else                                                                    \
-       abort ();                                                             \
-     __result; })
-
-
-#define atomic_increment(mem) \
-  (void) ({ if (sizeof (*mem) == 1)                                          \
-             __asm __volatile (LOCK "incb %b0"                               \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem));                                \
-           else if (sizeof (*mem) == 2)                                      \
-             __asm __volatile (LOCK "incw %w0"                               \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem));                                \
-           else if (sizeof (*mem) == 4)                                      \
-             __asm __volatile (LOCK "incl %0"                                \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem));                                \
-           else                                                              \
-             {                                                               \
-               __typeof (*mem) oldval;                                       \
-               __typeof (mem) memp = (mem);                                  \
-               do                                                            \
-                 oldval = *memp;                                             \
-               while (! __arch_compare_and_exchange_64_acq (memp,            \
-                                                            oldval + 1,      \
-                                                            oldval));        \
-             }                                                               \
-           })
-
-
-#define atomic_increment_and_test(mem) \
-  ({ unsigned char __result;                                                 \
-     if (sizeof (*mem) == 1)                                                 \
-       __asm __volatile (LOCK "incb %0; sete %b1"                            \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "0" (*mem));                                       \
-     else if (sizeof (*mem) == 2)                                            \
-       __asm __volatile (LOCK "incw %0; sete %w1"                            \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "0" (*mem));                                       \
-     else if (sizeof (*mem) == 4)                                            \
-       __asm __volatile (LOCK "incl %0; sete %1"                             \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "0" (*mem));                                       \
-     else                                                                    \
-       abort ();                                                             \
-     __result; })
-
-
-#define atomic_decrement(mem) \
-  (void) ({ if (sizeof (*mem) == 1)                                          \
-             __asm __volatile (LOCK "decb %b0"                               \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem));                                \
-           else if (sizeof (*mem) == 2)                                      \
-             __asm __volatile (LOCK "decw %w0"                               \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem));                                \
-           else if (sizeof (*mem) == 4)                                      \
-             __asm __volatile (LOCK "decl %0"                                \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem));                                \
-           else                                                              \
-             {                                                               \
-               __typeof (*mem) oldval;                                       \
-               __typeof (mem) memp = (mem);                                  \
-               do                                                            \
-                 oldval = *memp;                                             \
-               while (! __arch_compare_and_exchange_64_acq (memp,            \
-                                                            oldval - 1,      \
-                                                            oldval));        \
-             }                                                               \
-           })
-
-
-#define atomic_decrement_and_test(mem) \
-  ({ unsigned char __result;                                                 \
-     if (sizeof (*mem) == 1)                                                 \
-       __asm __volatile (LOCK "decb %b0; sete %1"                            \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "0" (*mem));                                       \
-     else if (sizeof (*mem) == 2)                                            \
-       __asm __volatile (LOCK "decw %w0; sete %1"                            \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "0" (*mem));                                       \
-     else if (sizeof (*mem) == 4)                                            \
-       __asm __volatile (LOCK "decl %0; sete %1"                             \
-                        : "=m" (*mem), "=qm" (__result)                      \
-                        : "0" (*mem));                                       \
-     else                                                                    \
-       abort ();                                                             \
-     __result; })
-
-
-#define atomic_bit_set(mem, bit) \
-  (void) ({ if (sizeof (*mem) == 1)                                          \
-             __asm __volatile (LOCK "orb %b2, %0"                            \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem), "i" (1 << (bit)));              \
-           else if (sizeof (*mem) == 2)                                      \
-             __asm __volatile (LOCK "orw %w2, %0"                            \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem), "i" (1 << (bit)));              \
-           else if (sizeof (*mem) == 4)                                      \
-             __asm __volatile (LOCK "orl %2, %0"                             \
-                               : "=m" (*mem)                                 \
-                               : "0" (*mem), "i" (1 << (bit)));              \
-           else                                                              \
-             abort ();                                                       \
-           })
-
-
-#define atomic_bit_test_set(mem, bit) \
-  ({ unsigned char __result;                                                 \
-     if (sizeof (*mem) == 1)                                                 \
-       __asm __volatile (LOCK "btsb %3, %1; setc %0"                         \
-                        : "=q" (__result), "=m" (*mem)                       \
-                        : "1" (*mem), "i" (bit));                            \
-     else if (sizeof (*mem) == 2)                                            \
-       __asm __volatile (LOCK "btsw %3, %1; setc %0"                         \
-                        : "=q" (__result), "=m" (*mem)                       \
-                        : "1" (*mem), "i" (bit));                            \
-     else if (sizeof (*mem) == 4)                                            \
-       __asm __volatile (LOCK "btsl %3, %1; setc %0"                         \
-                        : "=q" (__result), "=m" (*mem)                       \
-                        : "1" (*mem), "i" (bit));                            \
-     else                                                                    \
-       abort ();                                                             \
-     __result; })
+#include "../../i486/bits/atomic.h"