1 /* Copyright (C) 2008-2013 Free Software Foundation, Inc.
2 Contributed by Richard Henderson <rth@redhat.com>.
4 This file is part of the GNU Transactional Memory Library (libitm).
6 Libitm is free software; you can redistribute it and/or modify it
7 under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 Libitm is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 Under Section 7 of GPL version 3, you are granted additional
17 permissions described in the GCC Runtime Library Exception, version
18 3.1, as published by the Free Software Foundation.
20 You should have received a copy of the GNU General Public License and
21 a copy of the GCC Runtime Library Exception along with this program;
22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 <http://www.gnu.org/licenses/>. */
25 /* The external interface of this library follows the specification described
26 in version 1 of http://www.intel.com/some/path/here.pdf. */
40 /* Only for 32-bit x86. */
41 # define ITM_REGPARM __attribute__((regparm(2)))
46 #define ITM_NORETURN __attribute__((noreturn))
47 #define ITM_PURE __attribute__((transaction_pure))
49 /* The following are externally visible definitions and functions, though
50 only very few of these should be called by user code. */
52 /* Values used as arguments to abort. */
57 exceptionBlockAbort = 8,
61 /* Arguments to changeTransactionMode */
64 modeSerialIrrevocable,
65 } _ITM_transactionState;
67 /* Results from inTransaction */
70 outsideTransaction = 0, /* So "if (inTransaction(td))" works */
71 inRetryableTransaction,
72 inIrrevocableTransaction
75 /* Values to describe properties of code, passed in to beginTransaction */
78 pr_instrumentedCode = 0x0001,
79 pr_uninstrumentedCode = 0x0002,
80 pr_multiwayCode = pr_instrumentedCode | pr_uninstrumentedCode,
81 /* Called pr_hasNoXMMUpdate in the Intel document, used for
82 avoiding vector register save/restore for any target. */
83 pr_hasNoVectorUpdate = 0x0004,
84 pr_hasNoAbort = 0x0008,
85 /* Not present in the Intel document, used for avoiding
86 floating point register save/restore for any target. */
87 pr_hasNoFloatUpdate = 0x0010,
88 pr_hasNoIrrevocable = 0x0020,
89 pr_doesGoIrrevocable = 0x0040,
90 pr_aWBarriersOmitted = 0x0100,
91 pr_RaRBarriersOmitted = 0x0200,
92 pr_undoLogCode = 0x0400,
93 pr_preferUninstrumented = 0x0800,
94 /* Exception blocks are not used nor supported. */
95 pr_exceptionBlock = 0x1000,
98 pr_hasNoSimpleReads = 0x400000
99 } _ITM_codeProperties;
101 /* Result from startTransaction that describes what actions to take. */
104 a_runInstrumentedCode = 0x01,
105 a_runUninstrumentedCode = 0x02,
106 a_saveLiveVariables = 0x04,
107 a_restoreLiveVariables = 0x08,
108 a_abortTransaction = 0x10,
120 typedef void (* _ITM_userUndoFunction)(void *);
121 typedef void (* _ITM_userCommitFunction) (void *);
123 #define _ITM_VERSION "0.90 (Feb 29 2008)"
124 #define _ITM_VERSION_NO 90
126 extern int _ITM_versionCompatible (int) ITM_REGPARM;
127 extern const char * _ITM_libraryVersion (void) ITM_REGPARM;
129 void _ITM_error(const _ITM_srcLocation *, int errorCode)
130 ITM_REGPARM ITM_NORETURN;
132 extern _ITM_howExecuting _ITM_inTransaction(void) ITM_REGPARM;
134 typedef uint64_t _ITM_transactionId_t; /* Transaction identifier */
135 #define _ITM_noTransactionId 1 /* Id for non-transactional code. */
137 extern _ITM_transactionId_t _ITM_getTransactionId(void) ITM_REGPARM;
139 extern uint32_t _ITM_beginTransaction(uint32_t, ...) ITM_REGPARM;
141 extern void _ITM_abortTransaction(_ITM_abortReason) ITM_REGPARM ITM_NORETURN;
143 extern void _ITM_commitTransaction (void) ITM_REGPARM;
145 extern void _ITM_changeTransactionMode (_ITM_transactionState) ITM_REGPARM;
147 extern void _ITM_addUserCommitAction(_ITM_userCommitFunction,
148 _ITM_transactionId_t, void *) ITM_REGPARM;
150 extern void _ITM_addUserUndoAction(_ITM_userUndoFunction, void *) ITM_REGPARM;
152 extern void _ITM_dropReferences (void *, size_t) ITM_REGPARM ITM_PURE;
154 extern void *_ITM_malloc (size_t)
155 __attribute__((__malloc__)) ITM_PURE;
157 extern void *_ITM_calloc (size_t, size_t)
158 __attribute__((__malloc__)) ITM_PURE;
160 extern void _ITM_free (void *) ITM_PURE;
163 /* The following typedefs exist to make the macro expansions below work
164 properly. They are not part of any API. */
165 typedef uint8_t _ITM_TYPE_U1;
166 typedef uint16_t _ITM_TYPE_U2;
167 typedef uint32_t _ITM_TYPE_U4;
168 typedef uint64_t _ITM_TYPE_U8;
169 typedef float _ITM_TYPE_F;
170 typedef double _ITM_TYPE_D;
171 typedef long double _ITM_TYPE_E;
172 typedef float _Complex _ITM_TYPE_CF;
173 typedef double _Complex _ITM_TYPE_CD;
174 typedef long double _Complex _ITM_TYPE_CE;
176 #define ITM_BARRIERS(T) \
177 extern _ITM_TYPE_##T _ITM_R##T(const _ITM_TYPE_##T *) ITM_REGPARM; \
178 extern _ITM_TYPE_##T _ITM_RaR##T(const _ITM_TYPE_##T *) ITM_REGPARM; \
179 extern _ITM_TYPE_##T _ITM_RaW##T(const _ITM_TYPE_##T *) ITM_REGPARM; \
180 extern _ITM_TYPE_##T _ITM_RfW##T(const _ITM_TYPE_##T *) ITM_REGPARM; \
181 extern void _ITM_W##T (_ITM_TYPE_##T *, _ITM_TYPE_##T) ITM_REGPARM; \
182 extern void _ITM_WaR##T (_ITM_TYPE_##T *, _ITM_TYPE_##T) ITM_REGPARM; \
183 extern void _ITM_WaW##T (_ITM_TYPE_##T *, _ITM_TYPE_##T) ITM_REGPARM;
197 extern void _ITM_L##T (const _ITM_TYPE_##T *) ITM_REGPARM;
210 #if defined(__i386__) || defined(__x86_64__)
212 typedef int _ITM_TYPE_M64 __attribute__((vector_size(8), may_alias));
217 typedef float _ITM_TYPE_M128 __attribute__((vector_size(16), may_alias));
222 typedef float _ITM_TYPE_M256 __attribute__((vector_size(32), may_alias));
231 extern void _ITM_LB (const void *, size_t) ITM_REGPARM;
233 extern void _ITM_memcpyRnWt(void *, const void *, size_t) ITM_REGPARM;
234 extern void _ITM_memcpyRnWtaR(void *, const void *, size_t) ITM_REGPARM;
235 extern void _ITM_memcpyRnWtaW(void *, const void *, size_t) ITM_REGPARM;
236 extern void _ITM_memcpyRtWn(void *, const void *, size_t) ITM_REGPARM;
237 extern void _ITM_memcpyRtWt(void *, const void *, size_t) ITM_REGPARM;
238 extern void _ITM_memcpyRtWtaR(void *, const void *, size_t) ITM_REGPARM;
239 extern void _ITM_memcpyRtWtaW(void *, const void *, size_t) ITM_REGPARM;
240 extern void _ITM_memcpyRtaRWn(void *, const void *, size_t) ITM_REGPARM;
241 extern void _ITM_memcpyRtaRWt(void *, const void *, size_t) ITM_REGPARM;
242 extern void _ITM_memcpyRtaRWtaR(void *, const void *, size_t) ITM_REGPARM;
243 extern void _ITM_memcpyRtaRWtaW(void *, const void *, size_t) ITM_REGPARM;
244 extern void _ITM_memcpyRtaWWn(void *, const void *, size_t) ITM_REGPARM;
245 extern void _ITM_memcpyRtaWWt(void *, const void *, size_t) ITM_REGPARM;
246 extern void _ITM_memcpyRtaWWtaR(void *, const void *, size_t) ITM_REGPARM;
247 extern void _ITM_memcpyRtaWWtaW(void *, const void *, size_t) ITM_REGPARM;
249 extern void _ITM_memmoveRnWt(void *, const void *, size_t) ITM_REGPARM;
250 extern void _ITM_memmoveRnWtaR(void *, const void *, size_t) ITM_REGPARM;
251 extern void _ITM_memmoveRnWtaW(void *, const void *, size_t) ITM_REGPARM;
252 extern void _ITM_memmoveRtWn(void *, const void *, size_t) ITM_REGPARM;
253 extern void _ITM_memmoveRtWt(void *, const void *, size_t) ITM_REGPARM;
254 extern void _ITM_memmoveRtWtaR(void *, const void *, size_t) ITM_REGPARM;
255 extern void _ITM_memmoveRtWtaW(void *, const void *, size_t) ITM_REGPARM;
256 extern void _ITM_memmoveRtaRWn(void *, const void *, size_t) ITM_REGPARM;
257 extern void _ITM_memmoveRtaRWt(void *, const void *, size_t) ITM_REGPARM;
258 extern void _ITM_memmoveRtaRWtaR(void *, const void *, size_t) ITM_REGPARM;
259 extern void _ITM_memmoveRtaRWtaW(void *, const void *, size_t) ITM_REGPARM;
260 extern void _ITM_memmoveRtaWWn(void *, const void *, size_t) ITM_REGPARM;
261 extern void _ITM_memmoveRtaWWt(void *, const void *, size_t) ITM_REGPARM;
262 extern void _ITM_memmoveRtaWWtaR(void *, const void *, size_t) ITM_REGPARM;
263 extern void _ITM_memmoveRtaWWtaW(void *, const void *, size_t) ITM_REGPARM;
265 extern void _ITM_memsetW(void *, int, size_t) ITM_REGPARM;
266 extern void _ITM_memsetWaR(void *, int, size_t) ITM_REGPARM;
267 extern void _ITM_memsetWaW(void *, int, size_t) ITM_REGPARM;
269 // ??? These are not yet in the official spec; still work-in-progress.
271 extern void *_ITM_getTMCloneOrIrrevocable (void *) ITM_REGPARM;
272 extern void *_ITM_getTMCloneSafe (void *) ITM_REGPARM;
273 extern void _ITM_registerTMCloneTable (void *, size_t);
274 extern void _ITM_deregisterTMCloneTable (void *);
276 extern void *_ITM_cxa_allocate_exception (size_t);
277 extern void _ITM_cxa_throw (void *obj, void *tinfo, void *dest);
278 extern void *_ITM_cxa_begin_catch (void *exc_ptr);
279 extern void _ITM_cxa_end_catch (void);
280 extern void _ITM_commitTransactionEH(void *exc_ptr) ITM_REGPARM;
286 #endif /* LIBITM_H */