stdatomic.go 30 KB

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  1. // Copyright 2024 The Libc Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style
  3. // license that can be found in the LICENSE file.
  4. package libc // import "modernc.org/libc"
  5. import (
  6. "sync"
  7. "sync/atomic"
  8. "unsafe"
  9. )
  10. var (
  11. int8Mu sync.Mutex
  12. int16Mu sync.Mutex
  13. int32Mu sync.Mutex
  14. int64Mu sync.Mutex
  15. )
  16. // type __atomic_fetch_add(type *ptr, type val, int memorder)
  17. //
  18. // { tmp = *ptr; *ptr op= val; return tmp; }
  19. // { tmp = *ptr; *ptr = ~(*ptr & val); return tmp; } // nand
  20. func X__c11_atomic_fetch_addInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  21. return X__atomic_fetch_addInt8(t, ptr, val, 0)
  22. }
  23. func X__atomic_fetch_addInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  24. int8Mu.Lock()
  25. defer int8Mu.Unlock()
  26. r = *(*int8)(unsafe.Pointer(ptr))
  27. *(*int8)(unsafe.Pointer(ptr)) += val
  28. return r
  29. }
  30. func X__c11_atomic_fetch_addUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  31. return X__atomic_fetch_addUint8(t, ptr, val, 0)
  32. }
  33. func X__atomic_fetch_addUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  34. int8Mu.Lock()
  35. defer int8Mu.Unlock()
  36. r = *(*uint8)(unsafe.Pointer(ptr))
  37. *(*uint8)(unsafe.Pointer(ptr)) += val
  38. return r
  39. }
  40. func X__c11_atomic_fetch_addInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  41. return X__atomic_fetch_addInt16(t, ptr, val, 0)
  42. }
  43. func X__atomic_fetch_addInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  44. int16Mu.Lock()
  45. defer int16Mu.Unlock()
  46. r = *(*int16)(unsafe.Pointer(ptr))
  47. *(*int16)(unsafe.Pointer(ptr)) += val
  48. return r
  49. }
  50. func X__c11_atomic_fetch_addUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  51. return X__atomic_fetch_addUint16(t, ptr, val, 0)
  52. }
  53. func X__atomic_fetch_addUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  54. int16Mu.Lock()
  55. defer int16Mu.Unlock()
  56. r = *(*uint16)(unsafe.Pointer(ptr))
  57. *(*uint16)(unsafe.Pointer(ptr)) += val
  58. return r
  59. }
  60. func X__c11_atomic_fetch_addInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  61. return X__atomic_fetch_addInt32(t, ptr, val, 0)
  62. }
  63. func X__atomic_fetch_addInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  64. int32Mu.Lock()
  65. defer int32Mu.Unlock()
  66. r = *(*int32)(unsafe.Pointer(ptr))
  67. *(*int32)(unsafe.Pointer(ptr)) += val
  68. return r
  69. }
  70. func X__c11_atomic_fetch_addUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  71. return X__atomic_fetch_addUint32(t, ptr, val, 0)
  72. }
  73. func X__atomic_fetch_addUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  74. int32Mu.Lock()
  75. defer int32Mu.Unlock()
  76. r = *(*uint32)(unsafe.Pointer(ptr))
  77. *(*uint32)(unsafe.Pointer(ptr)) += val
  78. return r
  79. }
  80. func X__c11_atomic_fetch_addInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  81. return X__atomic_fetch_addInt64(t, ptr, val, 0)
  82. }
  83. func X__atomic_fetch_addInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  84. int64Mu.Lock()
  85. defer int64Mu.Unlock()
  86. r = *(*int64)(unsafe.Pointer(ptr))
  87. *(*int64)(unsafe.Pointer(ptr)) += val
  88. return r
  89. }
  90. func X__c11_atomic_fetch_addUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  91. return X__atomic_fetch_addUint64(t, ptr, val, 0)
  92. }
  93. func X__atomic_fetch_addUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  94. int64Mu.Lock()
  95. defer int64Mu.Unlock()
  96. r = *(*uint64)(unsafe.Pointer(ptr))
  97. *(*uint64)(unsafe.Pointer(ptr)) += val
  98. return r
  99. }
  100. // ----
  101. func X__c11_atomic_fetch_andInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  102. return X__atomic_fetch_andInt8(t, ptr, val, 0)
  103. }
  104. func X__atomic_fetch_andInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  105. int8Mu.Lock()
  106. defer int8Mu.Unlock()
  107. r = *(*int8)(unsafe.Pointer(ptr))
  108. *(*int8)(unsafe.Pointer(ptr)) &= val
  109. return r
  110. }
  111. func X__c11_atomic_fetch_andUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  112. return X__atomic_fetch_andUint8(t, ptr, val, 0)
  113. }
  114. func X__atomic_fetch_andUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  115. int8Mu.Lock()
  116. defer int8Mu.Unlock()
  117. r = *(*uint8)(unsafe.Pointer(ptr))
  118. *(*uint8)(unsafe.Pointer(ptr)) &= val
  119. return r
  120. }
  121. func X__c11_atomic_fetch_andInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  122. return X__atomic_fetch_andInt16(t, ptr, val, 0)
  123. }
  124. func X__atomic_fetch_andInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  125. int16Mu.Lock()
  126. defer int16Mu.Unlock()
  127. r = *(*int16)(unsafe.Pointer(ptr))
  128. *(*int16)(unsafe.Pointer(ptr)) &= val
  129. return r
  130. }
  131. func X__c11_atomic_fetch_andUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  132. return X__atomic_fetch_andUint16(t, ptr, val, 0)
  133. }
  134. func X__atomic_fetch_andUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  135. int16Mu.Lock()
  136. defer int16Mu.Unlock()
  137. r = *(*uint16)(unsafe.Pointer(ptr))
  138. *(*uint16)(unsafe.Pointer(ptr)) &= val
  139. return r
  140. }
  141. func X__c11_atomic_fetch_andInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  142. return X__atomic_fetch_andInt32(t, ptr, val, 0)
  143. }
  144. func X__atomic_fetch_andInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  145. int32Mu.Lock()
  146. defer int32Mu.Unlock()
  147. r = *(*int32)(unsafe.Pointer(ptr))
  148. *(*int32)(unsafe.Pointer(ptr)) &= val
  149. return r
  150. }
  151. func X__c11_atomic_fetch_andUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  152. return X__atomic_fetch_andUint32(t, ptr, val, 0)
  153. }
  154. func X__atomic_fetch_andUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  155. int32Mu.Lock()
  156. defer int32Mu.Unlock()
  157. r = *(*uint32)(unsafe.Pointer(ptr))
  158. *(*uint32)(unsafe.Pointer(ptr)) &= val
  159. return r
  160. }
  161. func X__c11_atomic_fetch_andInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  162. return X__atomic_fetch_andInt64(t, ptr, val, 0)
  163. }
  164. func X__atomic_fetch_andInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  165. int64Mu.Lock()
  166. defer int64Mu.Unlock()
  167. r = *(*int64)(unsafe.Pointer(ptr))
  168. *(*int64)(unsafe.Pointer(ptr)) &= val
  169. return r
  170. }
  171. func X__c11_atomic_fetch_andUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  172. return X__atomic_fetch_andUint64(t, ptr, val, 0)
  173. }
  174. func X__atomic_fetch_andUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  175. int64Mu.Lock()
  176. defer int64Mu.Unlock()
  177. r = *(*uint64)(unsafe.Pointer(ptr))
  178. *(*uint64)(unsafe.Pointer(ptr)) &= val
  179. return r
  180. }
  181. // ----
  182. func X__c11_atomic_fetch_orInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  183. return X__atomic_fetch_orInt8(t, ptr, val, 0)
  184. }
  185. func X__atomic_fetch_orInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  186. int8Mu.Lock()
  187. defer int8Mu.Unlock()
  188. r = *(*int8)(unsafe.Pointer(ptr))
  189. *(*int8)(unsafe.Pointer(ptr)) |= val
  190. return r
  191. }
  192. func X__c11_atomic_fetch_orUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  193. return X__atomic_fetch_orUint8(t, ptr, val, 0)
  194. }
  195. func X__atomic_fetch_orUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  196. int8Mu.Lock()
  197. defer int8Mu.Unlock()
  198. r = *(*uint8)(unsafe.Pointer(ptr))
  199. *(*uint8)(unsafe.Pointer(ptr)) |= val
  200. return r
  201. }
  202. func X__c11_atomic_fetch_orInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  203. return X__atomic_fetch_orInt16(t, ptr, val, 0)
  204. }
  205. func X__atomic_fetch_orInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  206. int16Mu.Lock()
  207. defer int16Mu.Unlock()
  208. r = *(*int16)(unsafe.Pointer(ptr))
  209. *(*int16)(unsafe.Pointer(ptr)) |= val
  210. return r
  211. }
  212. func X__c11_atomic_fetch_orUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  213. return X__atomic_fetch_orUint16(t, ptr, val, 0)
  214. }
  215. func X__atomic_fetch_orUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  216. int16Mu.Lock()
  217. defer int16Mu.Unlock()
  218. r = *(*uint16)(unsafe.Pointer(ptr))
  219. *(*uint16)(unsafe.Pointer(ptr)) |= val
  220. return r
  221. }
  222. func X__c11_atomic_fetch_orInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  223. return X__atomic_fetch_orInt32(t, ptr, val, 0)
  224. }
  225. func X__atomic_fetch_orInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  226. int32Mu.Lock()
  227. defer int32Mu.Unlock()
  228. r = *(*int32)(unsafe.Pointer(ptr))
  229. *(*int32)(unsafe.Pointer(ptr)) |= val
  230. return r
  231. }
  232. func X__c11_atomic_fetch_orUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  233. return X__atomic_fetch_orUint32(t, ptr, val, 0)
  234. }
  235. func X__atomic_fetch_orUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  236. int32Mu.Lock()
  237. defer int32Mu.Unlock()
  238. r = *(*uint32)(unsafe.Pointer(ptr))
  239. *(*uint32)(unsafe.Pointer(ptr)) |= val
  240. return r
  241. }
  242. func X__c11_atomic_fetch_orInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  243. return X__atomic_fetch_orInt64(t, ptr, val, 0)
  244. }
  245. func X__atomic_fetch_orInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  246. int64Mu.Lock()
  247. defer int64Mu.Unlock()
  248. r = *(*int64)(unsafe.Pointer(ptr))
  249. *(*int64)(unsafe.Pointer(ptr)) |= val
  250. return r
  251. }
  252. func X__c11_atomic_fetch_orUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  253. return X__atomic_fetch_orUint64(t, ptr, val, 0)
  254. }
  255. func X__atomic_fetch_orUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  256. int64Mu.Lock()
  257. defer int64Mu.Unlock()
  258. r = *(*uint64)(unsafe.Pointer(ptr))
  259. *(*uint64)(unsafe.Pointer(ptr)) |= val
  260. return r
  261. }
  262. // ----
  263. func X__c11_atomic_fetch_subInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  264. return X__atomic_fetch_subInt8(t, ptr, val, 0)
  265. }
  266. func X__atomic_fetch_subInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  267. int8Mu.Lock()
  268. defer int8Mu.Unlock()
  269. r = *(*int8)(unsafe.Pointer(ptr))
  270. *(*int8)(unsafe.Pointer(ptr)) -= val
  271. return r
  272. }
  273. func X__c11_atomic_fetch_subUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  274. return X__atomic_fetch_subUint8(t, ptr, val, 0)
  275. }
  276. func X__atomic_fetch_subUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  277. int8Mu.Lock()
  278. defer int8Mu.Unlock()
  279. r = *(*uint8)(unsafe.Pointer(ptr))
  280. *(*uint8)(unsafe.Pointer(ptr)) -= val
  281. return r
  282. }
  283. func X__c11_atomic_fetch_subInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  284. return X__atomic_fetch_subInt16(t, ptr, val, 0)
  285. }
  286. func X__atomic_fetch_subInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  287. int16Mu.Lock()
  288. defer int16Mu.Unlock()
  289. r = *(*int16)(unsafe.Pointer(ptr))
  290. *(*int16)(unsafe.Pointer(ptr)) -= val
  291. return r
  292. }
  293. func X__c11_atomic_fetch_subUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  294. return X__atomic_fetch_subUint16(t, ptr, val, 0)
  295. }
  296. func X__atomic_fetch_subUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  297. int16Mu.Lock()
  298. defer int16Mu.Unlock()
  299. r = *(*uint16)(unsafe.Pointer(ptr))
  300. *(*uint16)(unsafe.Pointer(ptr)) -= val
  301. return r
  302. }
  303. func X__c11_atomic_fetch_subInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  304. return X__atomic_fetch_subInt32(t, ptr, val, 0)
  305. }
  306. func X__atomic_fetch_subInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  307. int32Mu.Lock()
  308. defer int32Mu.Unlock()
  309. r = *(*int32)(unsafe.Pointer(ptr))
  310. *(*int32)(unsafe.Pointer(ptr)) -= val
  311. return r
  312. }
  313. func X__c11_atomic_fetch_subUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  314. return X__atomic_fetch_subUint32(t, ptr, val, 0)
  315. }
  316. func X__atomic_fetch_subUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  317. int32Mu.Lock()
  318. defer int32Mu.Unlock()
  319. r = *(*uint32)(unsafe.Pointer(ptr))
  320. *(*uint32)(unsafe.Pointer(ptr)) -= val
  321. return r
  322. }
  323. func X__c11_atomic_fetch_subInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  324. return X__atomic_fetch_subInt64(t, ptr, val, 0)
  325. }
  326. func X__atomic_fetch_subInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  327. int64Mu.Lock()
  328. defer int64Mu.Unlock()
  329. r = *(*int64)(unsafe.Pointer(ptr))
  330. *(*int64)(unsafe.Pointer(ptr)) -= val
  331. return r
  332. }
  333. func X__c11_atomic_fetch_subUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  334. return X__atomic_fetch_subUint64(t, ptr, val, 0)
  335. }
  336. func X__atomic_fetch_subUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  337. int64Mu.Lock()
  338. defer int64Mu.Unlock()
  339. r = *(*uint64)(unsafe.Pointer(ptr))
  340. *(*uint64)(unsafe.Pointer(ptr)) -= val
  341. return r
  342. }
  343. // ----
  344. func X__c11_atomic_fetch_xorInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  345. return X__atomic_fetch_xorInt8(t, ptr, val, 0)
  346. }
  347. func X__atomic_fetch_xorInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  348. int8Mu.Lock()
  349. defer int8Mu.Unlock()
  350. r = *(*int8)(unsafe.Pointer(ptr))
  351. *(*int8)(unsafe.Pointer(ptr)) ^= val
  352. return r
  353. }
  354. func X__c11_atomic_fetch_xorUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  355. return X__atomic_fetch_xorUint8(t, ptr, val, 0)
  356. }
  357. func X__atomic_fetch_xorUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  358. int8Mu.Lock()
  359. defer int8Mu.Unlock()
  360. r = *(*uint8)(unsafe.Pointer(ptr))
  361. *(*uint8)(unsafe.Pointer(ptr)) ^= val
  362. return r
  363. }
  364. func X__c11_atomic_fetch_xorInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  365. return X__atomic_fetch_xorInt16(t, ptr, val, 0)
  366. }
  367. func X__atomic_fetch_xorInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  368. int16Mu.Lock()
  369. defer int16Mu.Unlock()
  370. r = *(*int16)(unsafe.Pointer(ptr))
  371. *(*int16)(unsafe.Pointer(ptr)) ^= val
  372. return r
  373. }
  374. func X__c11_atomic_fetch_xorUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  375. return X__atomic_fetch_xorUint16(t, ptr, val, 0)
  376. }
  377. func X__atomic_fetch_xorUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  378. int16Mu.Lock()
  379. defer int16Mu.Unlock()
  380. r = *(*uint16)(unsafe.Pointer(ptr))
  381. *(*uint16)(unsafe.Pointer(ptr)) ^= val
  382. return r
  383. }
  384. func X__c11_atomic_fetch_xorInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  385. return X__atomic_fetch_xorInt32(t, ptr, val, 0)
  386. }
  387. func X__atomic_fetch_xorInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  388. int32Mu.Lock()
  389. defer int32Mu.Unlock()
  390. r = *(*int32)(unsafe.Pointer(ptr))
  391. *(*int32)(unsafe.Pointer(ptr)) ^= val
  392. return r
  393. }
  394. func X__c11_atomic_fetch_xorUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  395. return X__atomic_fetch_xorUint32(t, ptr, val, 0)
  396. }
  397. func X__atomic_fetch_xorUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  398. int32Mu.Lock()
  399. defer int32Mu.Unlock()
  400. r = *(*uint32)(unsafe.Pointer(ptr))
  401. *(*uint32)(unsafe.Pointer(ptr)) ^= val
  402. return r
  403. }
  404. func X__c11_atomic_fetch_xorInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  405. return X__atomic_fetch_xorInt64(t, ptr, val, 0)
  406. }
  407. func X__atomic_fetch_xorInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  408. int64Mu.Lock()
  409. defer int64Mu.Unlock()
  410. r = *(*int64)(unsafe.Pointer(ptr))
  411. *(*int64)(unsafe.Pointer(ptr)) ^= val
  412. return r
  413. }
  414. func X__c11_atomic_fetch_xorUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  415. return X__atomic_fetch_xorUint64(t, ptr, val, 0)
  416. }
  417. func X__atomic_fetch_xorUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  418. int64Mu.Lock()
  419. defer int64Mu.Unlock()
  420. r = *(*uint64)(unsafe.Pointer(ptr))
  421. *(*uint64)(unsafe.Pointer(ptr)) ^= val
  422. return r
  423. }
  424. // ----
  425. // void __atomic_exchange (type *ptr, type *val, type *ret, int memorder)
  426. func X__c11_atomic_exchangeInt8(t *TLS, ptr uintptr, val int8, _ int32) (r int8) {
  427. int8Mu.Lock()
  428. defer int8Mu.Unlock()
  429. r = *(*int8)(unsafe.Pointer(ptr))
  430. *(*int8)(unsafe.Pointer(ptr)) = val
  431. return r
  432. }
  433. func X__atomic_exchangeInt8(t *TLS, ptr, val, ret uintptr, _ int32) {
  434. int8Mu.Lock()
  435. defer int8Mu.Unlock()
  436. *(*int8)(unsafe.Pointer(ret)) = *(*int8)(unsafe.Pointer(ptr))
  437. *(*int8)(unsafe.Pointer(ptr)) = *(*int8)(unsafe.Pointer(val))
  438. }
  439. func X__c11_atomic_exchangeUint8(t *TLS, ptr uintptr, val uint8, _ int32) (r uint8) {
  440. int8Mu.Lock()
  441. defer int8Mu.Unlock()
  442. r = *(*uint8)(unsafe.Pointer(ptr))
  443. *(*uint8)(unsafe.Pointer(ptr)) = val
  444. return r
  445. }
  446. func X__atomic_exchangeUint8(t *TLS, ptr, val, ret uintptr, _ int32) {
  447. int8Mu.Lock()
  448. defer int8Mu.Unlock()
  449. *(*uint8)(unsafe.Pointer(ret)) = *(*uint8)(unsafe.Pointer(ptr))
  450. *(*uint8)(unsafe.Pointer(ptr)) = *(*uint8)(unsafe.Pointer(val))
  451. }
  452. func X__c11_atomic_exchangeInt16(t *TLS, ptr uintptr, val int16, _ int32) (r int16) {
  453. int16Mu.Lock()
  454. defer int16Mu.Unlock()
  455. r = *(*int16)(unsafe.Pointer(ptr))
  456. *(*int16)(unsafe.Pointer(ptr)) = val
  457. return r
  458. }
  459. func X__atomic_exchangeInt16(t *TLS, ptr, val, ret uintptr, _ int32) {
  460. int16Mu.Lock()
  461. defer int16Mu.Unlock()
  462. *(*int16)(unsafe.Pointer(ret)) = *(*int16)(unsafe.Pointer(ptr))
  463. *(*int16)(unsafe.Pointer(ptr)) = *(*int16)(unsafe.Pointer(val))
  464. }
  465. func X__c11_atomic_exchangeUint16(t *TLS, ptr uintptr, val uint16, _ int32) (r uint16) {
  466. int16Mu.Lock()
  467. defer int16Mu.Unlock()
  468. r = *(*uint16)(unsafe.Pointer(ptr))
  469. *(*uint16)(unsafe.Pointer(ptr)) = val
  470. return r
  471. }
  472. func X__atomic_exchangeUint16(t *TLS, ptr, val, ret uintptr, _ int32) {
  473. int16Mu.Lock()
  474. defer int16Mu.Unlock()
  475. *(*uint16)(unsafe.Pointer(ret)) = *(*uint16)(unsafe.Pointer(ptr))
  476. *(*uint16)(unsafe.Pointer(ptr)) = *(*uint16)(unsafe.Pointer(val))
  477. }
  478. func X__c11_atomic_exchangeInt32(t *TLS, ptr uintptr, val int32, _ int32) (r int32) {
  479. return atomic.SwapInt32((*int32)(unsafe.Pointer(ptr)), val)
  480. }
  481. func X__atomic_exchangeInt32(t *TLS, ptr, val, ret uintptr, _ int32) {
  482. *(*int32)(unsafe.Pointer(ret)) = atomic.SwapInt32((*int32)(unsafe.Pointer(ptr)), *(*int32)(unsafe.Pointer(val)))
  483. }
  484. func X__c11_atomic_exchangeUint32(t *TLS, ptr uintptr, val uint32, _ int32) (r uint32) {
  485. return uint32(atomic.SwapInt32((*int32)(unsafe.Pointer(ptr)), int32(val)))
  486. }
  487. func X__atomic_exchangeUint32(t *TLS, ptr, val, ret uintptr, _ int32) {
  488. *(*uint32)(unsafe.Pointer(ret)) = atomic.SwapUint32((*uint32)(unsafe.Pointer(ptr)), *(*uint32)(unsafe.Pointer(val)))
  489. }
  490. func X__c11_atomic_exchangeInt64(t *TLS, ptr uintptr, val int64, _ int32) (r int64) {
  491. return atomic.SwapInt64((*int64)(unsafe.Pointer(ptr)), val)
  492. }
  493. func X__atomic_exchangeInt64(t *TLS, ptr, val, ret uintptr, _ int32) {
  494. *(*int64)(unsafe.Pointer(ret)) = atomic.SwapInt64((*int64)(unsafe.Pointer(ptr)), *(*int64)(unsafe.Pointer(val)))
  495. }
  496. func X__c11_atomic_exchangeUint64(t *TLS, ptr uintptr, val uint64, _ int32) (r uint64) {
  497. return uint64(atomic.SwapInt64((*int64)(unsafe.Pointer(ptr)), int64(val)))
  498. }
  499. func X__atomic_exchangeUint64(t *TLS, ptr, val, ret uintptr, _ int32) {
  500. *(*uint64)(unsafe.Pointer(ret)) = atomic.SwapUint64((*uint64)(unsafe.Pointer(ptr)), *(*uint64)(unsafe.Pointer(val)))
  501. }
  502. // ----
  503. // bool __atomic_compare_exchange (type *ptr, type *expected, type *desired, bool weak, int success_memorder, int failure_memorder)
  504. // https://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html
  505. //
  506. // This built-in function implements an atomic compare and exchange operation.
  507. // This compares the contents of *ptr with the contents of *expected. If equal,
  508. // the operation is a read-modify-write operation that writes desired into
  509. // *ptr. If they are not equal, the operation is a read and the current
  510. // contents of *ptr are written into *expected. weak is true for weak
  511. // compare_exchange, which may fail spuriously, and false for the strong
  512. // variation, which never fails spuriously. Many targets only offer the strong
  513. // variation and ignore the parameter. When in doubt, use the strong variation.
  514. //
  515. // If desired is written into *ptr then true is returned and memory is affected
  516. // according to the memory order specified by success_memorder. There are no
  517. // restrictions on what memory order can be used here.
  518. //
  519. // Otherwise, false is returned and memory is affected according to
  520. // failure_memorder. This memory order cannot be __ATOMIC_RELEASE nor
  521. // __ATOMIC_ACQ_REL. It also cannot be a stronger order than that specified by
  522. // success_memorder.
  523. func X__atomic_compare_exchangeInt8(t *TLS, ptr, expected, desired uintptr, weak, success, failure int32) int32 {
  524. int8Mu.Lock()
  525. defer int8Mu.Unlock()
  526. have := *(*int8)(unsafe.Pointer(ptr))
  527. if have == *(*int8)(unsafe.Pointer(expected)) {
  528. *(*int8)(unsafe.Pointer(ptr)) = *(*int8)(unsafe.Pointer(desired))
  529. return 1
  530. }
  531. *(*int8)(unsafe.Pointer(expected)) = have
  532. return 0
  533. }
  534. func X__atomic_compare_exchangeUint8(t *TLS, ptr, expected, desired uintptr, weak, success, failure int32) int32 {
  535. return X__atomic_compare_exchangeInt8(t, ptr, expected, desired, weak, success, failure)
  536. }
  537. func X__atomic_compare_exchangeInt16(t *TLS, ptr, expected, desired uintptr, weak, success, failure int32) int32 {
  538. int16Mu.Lock()
  539. defer int16Mu.Unlock()
  540. have := *(*int16)(unsafe.Pointer(ptr))
  541. if have == *(*int16)(unsafe.Pointer(expected)) {
  542. *(*int16)(unsafe.Pointer(ptr)) = *(*int16)(unsafe.Pointer(desired))
  543. return 1
  544. }
  545. *(*int16)(unsafe.Pointer(expected)) = have
  546. return 0
  547. }
  548. func X__atomic_compare_exchangeUint16(t *TLS, ptr, expected, desired uintptr, weak, success, failure int32) int32 {
  549. return X__atomic_compare_exchangeInt16(t, ptr, expected, desired, weak, success, failure)
  550. }
  551. func X__atomic_compare_exchangeInt32(t *TLS, ptr, expected, desired uintptr, weak, success, failure int32) int32 {
  552. int32Mu.Lock()
  553. defer int32Mu.Unlock()
  554. have := *(*int32)(unsafe.Pointer(ptr))
  555. if have == *(*int32)(unsafe.Pointer(expected)) {
  556. *(*int32)(unsafe.Pointer(ptr)) = *(*int32)(unsafe.Pointer(desired))
  557. return 1
  558. }
  559. *(*int32)(unsafe.Pointer(expected)) = have
  560. return 0
  561. }
  562. func X__atomic_compare_exchangeUint32(t *TLS, ptr, expected, desired uintptr, weak, success, failure int32) int32 {
  563. return X__atomic_compare_exchangeInt32(t, ptr, expected, desired, weak, success, failure)
  564. }
  565. func X__atomic_compare_exchangeInt64(t *TLS, ptr, expected, desired uintptr, weak, success, failure int32) int32 {
  566. int64Mu.Lock()
  567. defer int64Mu.Unlock()
  568. have := *(*int64)(unsafe.Pointer(ptr))
  569. if have == *(*int64)(unsafe.Pointer(expected)) {
  570. *(*int64)(unsafe.Pointer(ptr)) = *(*int64)(unsafe.Pointer(desired))
  571. return 1
  572. }
  573. *(*int64)(unsafe.Pointer(expected)) = have
  574. return 0
  575. }
  576. func X__atomic_compare_exchangeUint64(t *TLS, ptr, expected, desired uintptr, weak, success, failure int32) int32 {
  577. return X__atomic_compare_exchangeInt64(t, ptr, expected, desired, weak, success, failure)
  578. }
  579. func X__c11_atomic_compare_exchange_strongInt8(t *TLS, ptr, expected uintptr, desired int8, success, failure int32) int32 {
  580. int8Mu.Lock()
  581. defer int8Mu.Unlock()
  582. have := *(*int8)(unsafe.Pointer(ptr))
  583. if have == *(*int8)(unsafe.Pointer(expected)) {
  584. *(*int8)(unsafe.Pointer(ptr)) = desired
  585. return 1
  586. }
  587. *(*int8)(unsafe.Pointer(expected)) = have
  588. return 0
  589. }
  590. func X__c11_atomic_compare_exchange_strongUint8(t *TLS, ptr, expected uintptr, desired uint8, success, failure int32) int32 {
  591. return X__c11_atomic_compare_exchange_strongInt8(t, ptr, expected, int8(desired), success, failure)
  592. }
  593. func X__c11_atomic_compare_exchange_strongInt16(t *TLS, ptr, expected uintptr, desired int16, success, failure int32) int32 {
  594. int16Mu.Lock()
  595. defer int16Mu.Unlock()
  596. have := *(*int16)(unsafe.Pointer(ptr))
  597. if have == *(*int16)(unsafe.Pointer(expected)) {
  598. *(*int16)(unsafe.Pointer(ptr)) = desired
  599. return 1
  600. }
  601. *(*int16)(unsafe.Pointer(expected)) = have
  602. return 0
  603. }
  604. func X__c11_atomic_compare_exchange_strongUint16(t *TLS, ptr, expected uintptr, desired uint16, success, failure int32) int32 {
  605. return X__c11_atomic_compare_exchange_strongInt16(t, ptr, expected, int16(desired), success, failure)
  606. }
  607. func X__c11_atomic_compare_exchange_strongInt32(t *TLS, ptr, expected uintptr, desired, success, failure int32) int32 {
  608. int32Mu.Lock()
  609. defer int32Mu.Unlock()
  610. have := *(*int32)(unsafe.Pointer(ptr))
  611. if have == *(*int32)(unsafe.Pointer(expected)) {
  612. *(*int32)(unsafe.Pointer(ptr)) = desired
  613. return 1
  614. }
  615. *(*int32)(unsafe.Pointer(expected)) = have
  616. return 0
  617. }
  618. func X__c11_atomic_compare_exchange_strongUint32(t *TLS, ptr, expected uintptr, desired uint32, success, failure int32) int32 {
  619. return X__c11_atomic_compare_exchange_strongInt32(t, ptr, expected, int32(desired), success, failure)
  620. }
  621. func X__c11_atomic_compare_exchange_strongInt64(t *TLS, ptr, expected uintptr, desired int64, success, failure int32) int32 {
  622. int64Mu.Lock()
  623. defer int64Mu.Unlock()
  624. have := *(*int64)(unsafe.Pointer(ptr))
  625. if have == *(*int64)(unsafe.Pointer(expected)) {
  626. *(*int64)(unsafe.Pointer(ptr)) = desired
  627. return 1
  628. }
  629. *(*int64)(unsafe.Pointer(expected)) = have
  630. return 0
  631. }
  632. func X__c11_atomic_compare_exchange_strongUint64(t *TLS, ptr, expected uintptr, desired uint64, success, failure int32) int32 {
  633. return X__c11_atomic_compare_exchange_strongInt64(t, ptr, expected, int64(desired), success, failure)
  634. }
  635. // ----
  636. // void __atomic_load (type *ptr, type *ret, int memorder)
  637. func X__c11_atomic_loadInt8(t *TLS, ptr uintptr, memorder int32) (r int8) {
  638. int8Mu.Lock()
  639. defer int8Mu.Unlock()
  640. return *(*int8)(unsafe.Pointer(ptr))
  641. }
  642. func X__atomic_loadInt8(t *TLS, ptr, ret uintptr, memorder int32) {
  643. int8Mu.Lock()
  644. defer int8Mu.Unlock()
  645. *(*int8)(unsafe.Pointer(ret)) = *(*int8)(unsafe.Pointer(ptr))
  646. }
  647. func X__c11_atomic_loadUint8(t *TLS, ptr uintptr, memorder int32) (r uint8) {
  648. return uint8(X__c11_atomic_loadInt8(t, ptr, memorder))
  649. }
  650. func X__atomic_loadUint8(t *TLS, ptr, ret uintptr, memorder int32) {
  651. X__atomic_loadInt8(t, ptr, ret, memorder)
  652. }
  653. func X__c11_atomic_loadInt16(t *TLS, ptr uintptr, memorder int32) (r int16) {
  654. int16Mu.Lock()
  655. defer int16Mu.Unlock()
  656. return *(*int16)(unsafe.Pointer(ptr))
  657. }
  658. func X__atomic_loadInt16(t *TLS, ptr, ret uintptr, memorder int32) {
  659. int16Mu.Lock()
  660. defer int16Mu.Unlock()
  661. *(*int16)(unsafe.Pointer(ret)) = *(*int16)(unsafe.Pointer(ptr))
  662. }
  663. func X__c11_atomic_loadUint16(t *TLS, ptr uintptr, memorder int32) (r uint16) {
  664. return uint16(X__c11_atomic_loadInt16(t, ptr, memorder))
  665. }
  666. func X__atomic_loadUint16(t *TLS, ptr, ret uintptr, memorder int32) {
  667. X__atomic_loadInt16(t, ptr, ret, memorder)
  668. }
  669. func X__c11_atomic_loadInt32(t *TLS, ptr uintptr, memorder int32) (r int32) {
  670. return atomic.LoadInt32((*int32)(unsafe.Pointer(ptr)))
  671. }
  672. func X__atomic_loadInt32(t *TLS, ptr, ret uintptr, memorder int32) {
  673. *(*int32)(unsafe.Pointer(ret)) = atomic.LoadInt32((*int32)(unsafe.Pointer(ptr)))
  674. }
  675. func X__c11_atomic_loadUint32(t *TLS, ptr uintptr, memorder int32) (r uint32) {
  676. return uint32(X__c11_atomic_loadInt32(t, ptr, memorder))
  677. }
  678. func X__atomic_loadUint32(t *TLS, ptr, ret uintptr, memorder int32) {
  679. X__atomic_loadInt32(t, ptr, ret, memorder)
  680. }
  681. func X__c11_atomic_loadInt64(t *TLS, ptr uintptr, memorder int32) (r int64) {
  682. return atomic.LoadInt64((*int64)(unsafe.Pointer(ptr)))
  683. }
  684. func X__atomic_loadInt64(t *TLS, ptr, ret uintptr, memorder int32) {
  685. *(*int64)(unsafe.Pointer(ret)) = atomic.LoadInt64((*int64)(unsafe.Pointer(ptr)))
  686. }
  687. func X__c11_atomic_loadUint64(t *TLS, ptr uintptr, memorder int32) (r uint64) {
  688. return uint64(X__c11_atomic_loadInt64(t, ptr, memorder))
  689. }
  690. func X__atomic_loadUint64(t *TLS, ptr, ret uintptr, memorder int32) {
  691. X__atomic_loadInt64(t, ptr, ret, memorder)
  692. }
  693. // ----
  694. // void __atomic_store (type *ptr, type *val, int memorder)
  695. func X__c11_atomic_storeInt8(t *TLS, ptr uintptr, val int8, memorder int32) {
  696. int8Mu.Lock()
  697. defer int8Mu.Unlock()
  698. *(*int8)(unsafe.Pointer(ptr)) = val
  699. }
  700. func X__atomic_storeInt8(t *TLS, ptr, val uintptr, memorder int32) {
  701. int8Mu.Lock()
  702. defer int8Mu.Unlock()
  703. *(*int8)(unsafe.Pointer(ptr)) = *(*int8)(unsafe.Pointer(val))
  704. }
  705. func X__c11_atomic_storeUint8(t *TLS, ptr uintptr, val uint8, memorder int32) {
  706. X__c11_atomic_storeInt8(t, ptr, int8(val), memorder)
  707. }
  708. func X__atomic_storeUint8(t *TLS, ptr, val uintptr, memorder int32) {
  709. X__atomic_storeInt8(t, ptr, val, memorder)
  710. }
  711. func X__c11_atomic_storeInt16(t *TLS, ptr uintptr, val int16, memorder int32) {
  712. int16Mu.Lock()
  713. defer int16Mu.Unlock()
  714. *(*int16)(unsafe.Pointer(ptr)) = val
  715. }
  716. func X__atomic_storeInt16(t *TLS, ptr, val uintptr, memorder int32) {
  717. int16Mu.Lock()
  718. defer int16Mu.Unlock()
  719. *(*int16)(unsafe.Pointer(ptr)) = *(*int16)(unsafe.Pointer(val))
  720. }
  721. func X__c11_atomic_storeUint16(t *TLS, ptr uintptr, val uint16, memorder int32) {
  722. X__c11_atomic_storeInt16(t, ptr, int16(val), memorder)
  723. }
  724. func X__atomic_storeUint16(t *TLS, ptr, val uintptr, memorder int32) {
  725. X__atomic_storeInt16(t, ptr, val, memorder)
  726. }
  727. func X__c11_atomic_storeInt32(t *TLS, ptr uintptr, val int32, memorder int32) {
  728. atomic.StoreInt32((*int32)(unsafe.Pointer(ptr)), val)
  729. }
  730. func X__atomic_storeInt32(t *TLS, ptr, val uintptr, memorder int32) {
  731. atomic.StoreInt32((*int32)(unsafe.Pointer(ptr)), *(*int32)(unsafe.Pointer(val)))
  732. }
  733. func X__c11_atomic_storeUint32(t *TLS, ptr uintptr, val uint32, memorder int32) {
  734. X__c11_atomic_storeInt32(t, ptr, int32(val), memorder)
  735. }
  736. func X__atomic_storeUint32(t *TLS, ptr, val uintptr, memorder int32) {
  737. X__atomic_storeInt32(t, ptr, val, memorder)
  738. }
  739. func X__c11_atomic_storeInt64(t *TLS, ptr uintptr, val int64, memorder int32) {
  740. atomic.StoreInt64((*int64)(unsafe.Pointer(ptr)), val)
  741. }
  742. func X__atomic_storeInt64(t *TLS, ptr, val uintptr, memorder int32) {
  743. atomic.StoreInt64((*int64)(unsafe.Pointer(ptr)), *(*int64)(unsafe.Pointer(val)))
  744. }
  745. func X__c11_atomic_storeUint64(t *TLS, ptr uintptr, val uint64, memorder int32) {
  746. X__c11_atomic_storeInt64(t, ptr, int64(val), memorder)
  747. }
  748. func X__atomic_storeUint64(t *TLS, ptr, val uintptr, memorder int32) {
  749. X__atomic_storeInt64(t, ptr, val, memorder)
  750. }
  751. // type __sync_val_compare_and_swap (type *ptr, type oldval type newval, ...)
  752. func X__sync_val_compare_and_swapInt8(t *TLS, ptr uintptr, oldval, newval int8) (r int8) {
  753. int8Mu.Lock()
  754. defer int8Mu.Unlock()
  755. if r = *(*int8)(unsafe.Pointer(ptr)); r == oldval {
  756. *(*int8)(unsafe.Pointer(ptr)) = newval
  757. }
  758. return r
  759. }
  760. func X__sync_val_compare_and_swapUint8(t *TLS, ptr uintptr, oldval, newval uint8) (r uint8) {
  761. int8Mu.Lock()
  762. defer int8Mu.Unlock()
  763. if r = *(*uint8)(unsafe.Pointer(ptr)); r == oldval {
  764. *(*uint8)(unsafe.Pointer(ptr)) = newval
  765. }
  766. return r
  767. }
  768. func X__sync_val_compare_and_swapInt16(t *TLS, ptr uintptr, oldval, newval int16) (r int16) {
  769. int16Mu.Lock()
  770. defer int16Mu.Unlock()
  771. if r = *(*int16)(unsafe.Pointer(ptr)); r == oldval {
  772. *(*int16)(unsafe.Pointer(ptr)) = newval
  773. }
  774. return r
  775. }
  776. func X__sync_val_compare_and_swapUint16(t *TLS, ptr uintptr, oldval, newval uint16) (r uint16) {
  777. int16Mu.Lock()
  778. defer int16Mu.Unlock()
  779. if r = *(*uint16)(unsafe.Pointer(ptr)); r == oldval {
  780. *(*uint16)(unsafe.Pointer(ptr)) = newval
  781. }
  782. return r
  783. }
  784. func X__sync_val_compare_and_swapInt32(t *TLS, ptr uintptr, oldval, newval int32) (r int32) {
  785. int32Mu.Lock()
  786. defer int32Mu.Unlock()
  787. if r = *(*int32)(unsafe.Pointer(ptr)); r == oldval {
  788. *(*int32)(unsafe.Pointer(ptr)) = newval
  789. }
  790. return r
  791. }
  792. func X__sync_val_compare_and_swapUint32(t *TLS, ptr uintptr, oldval, newval uint32) (r uint32) {
  793. int32Mu.Lock()
  794. defer int32Mu.Unlock()
  795. if r = *(*uint32)(unsafe.Pointer(ptr)); r == oldval {
  796. *(*uint32)(unsafe.Pointer(ptr)) = newval
  797. }
  798. return r
  799. }
  800. func X__sync_val_compare_and_swapInt64(t *TLS, ptr uintptr, oldval, newval int64) (r int64) {
  801. int64Mu.Lock()
  802. defer int64Mu.Unlock()
  803. if r = *(*int64)(unsafe.Pointer(ptr)); r == oldval {
  804. *(*int64)(unsafe.Pointer(ptr)) = newval
  805. }
  806. return r
  807. }
  808. func X__sync_val_compare_and_swapUint64(t *TLS, ptr uintptr, oldval, newval uint64) (r uint64) {
  809. int64Mu.Lock()
  810. defer int64Mu.Unlock()
  811. if r = *(*uint64)(unsafe.Pointer(ptr)); r == oldval {
  812. *(*uint64)(unsafe.Pointer(ptr)) = newval
  813. }
  814. return r
  815. }