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b33e6163 RM |
1 | /* Copyright (C) 2003 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. | |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Lesser General Public | |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
8 | ||
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | Lesser General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Lesser General Public | |
15 | License along with the GNU C Library; if not, write to the Free | |
16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
17 | 02111-1307 USA. */ | |
18 | ||
19 | #include <stdint.h> | |
20 | #include <ia64intrin.h> | |
21 | ||
22 | typedef int8_t atomic8_t; | |
23 | typedef uint8_t uatomic8_t; | |
24 | typedef int_fast8_t atomic_fast8_t; | |
25 | typedef uint_fast8_t uatomic_fast8_t; | |
26 | ||
27 | typedef int16_t atomic16_t; | |
28 | typedef uint16_t uatomic16_t; | |
29 | typedef int_fast16_t atomic_fast16_t; | |
30 | typedef uint_fast16_t uatomic_fast16_t; | |
31 | ||
32 | typedef int32_t atomic32_t; | |
33 | typedef uint32_t uatomic32_t; | |
34 | typedef int_fast32_t atomic_fast32_t; | |
35 | typedef uint_fast32_t uatomic_fast32_t; | |
36 | ||
37 | typedef int64_t atomic64_t; | |
38 | typedef uint64_t uatomic64_t; | |
39 | typedef int_fast64_t atomic_fast64_t; | |
40 | typedef uint_fast64_t uatomic_fast64_t; | |
41 | ||
42 | typedef intptr_t atomicptr_t; | |
43 | typedef uintptr_t uatomicptr_t; | |
44 | typedef intmax_t atomic_max_t; | |
45 | typedef uintmax_t uatomic_max_t; | |
46 | ||
47 | ||
48 | #define __arch_compare_and_exchange_8_acq(mem, newval, oldval) \ | |
49 | (abort (), 0) | |
50 | ||
51 | #define __arch_compare_and_exchange_16_acq(mem, newval, oldval) \ | |
52 | (abort (), 0) | |
53 | ||
54 | #define __arch_compare_and_exchange_32_acq(mem, newval, oldval) \ | |
55 | (!__sync_bool_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \ | |
56 | (int) (long) (newval))) | |
57 | ||
58 | # define __arch_compare_and_exchange_64_acq(mem, newval, oldval) \ | |
59 | (!__sync_bool_compare_and_swap_di ((long *) (mem), (long) (oldval), \ | |
60 | (long) (newval))) | |
61 | ||
62 | #define __arch_compare_and_exchange_32_val_acq(mem, newval, oldval) \ | |
63 | __sync_val_compare_and_swap_si ((int *) (mem), (int) (long) (oldval), \ | |
64 | (int) (long) (newval)) | |
65 | ||
66 | # define __arch_compare_and_exchange_64_val_acq(mem, newval, oldval) \ | |
67 | __sync_val_compare_and_swap_di ((long *) (mem), (long) (oldval), \ | |
68 | (long) (newval)) | |
69 | ||
70 | # define atomic_exchange_and_add(mem, value) \ | |
71 | ({ \ | |
72 | __typeof (*mem) __oldval, __val; \ | |
73 | __typeof (mem) __memp = (mem); \ | |
74 | __typeof (*mem) __value = (value); \ | |
75 | \ | |
76 | __val = *__memp; \ | |
77 | if (sizeof (*mem) == 4) \ | |
78 | do \ | |
bd0fa4ce UD |
79 | { \ |
80 | __oldval = __val; \ | |
81 | __val = __arch_compare_and_exchange_32_val_acq (__memp, \ | |
82 | __oldval + __value, \ | |
83 | __oldval); \ | |
84 | } \ | |
85 | while (__builtin_expect (__val != __oldval, 0)); \ | |
b33e6163 RM |
86 | else if (sizeof (*mem) == 8) \ |
87 | do \ | |
bd0fa4ce UD |
88 | { \ |
89 | __oldval = __val; \ | |
90 | __val = __arch_compare_and_exchange_64_val_acq (__memp, \ | |
91 | __oldval + __value, \ | |
92 | __oldval); \ | |
93 | } \ | |
94 | while (__builtin_expect (__val != __oldval, 0)); \ | |
b33e6163 RM |
95 | else \ |
96 | abort (); \ | |
97 | __oldval + __value; }) |