compiler-rt/lib/profile/InstrProfilingPort.h

   1 /*===- InstrProfilingPort.h- Support library for PGO instrumentation ------===*\
   2 |*
   3 |* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 |* See https://llvm.org/LICENSE.txt for license information.
   5 |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 |*
   7 \*===----------------------------------------------------------------------===*/
   8
   9 /* This header must be included after all others so it can provide fallback
  10    definitions for stuff missing in system headers. */
  11
  12 #ifndef PROFILE_INSTRPROFILING_PORT_H_
  13 #define PROFILE_INSTRPROFILING_PORT_H_
  14
  15 #ifdef _MSC_VER
  16 #define COMPILER_RT_ALIGNAS(x) __declspec(align(x))
  17 #define COMPILER_RT_VISIBILITY
  18 /* FIXME: selectany does not have the same semantics as weak. */
  19 #define COMPILER_RT_WEAK __declspec(selectany)
  20 /* Need to include <windows.h> */
  21 #define COMPILER_RT_ALLOCA _alloca
  22 /* Need to include <stdio.h> and <io.h> */
  23 #define COMPILER_RT_FTRUNCATE(f,l) _chsize(_fileno(f),l)
  24 #define COMPILER_RT_ALWAYS_INLINE __forceinline
  25 #define COMPILER_RT_CLEANUP(x)
  26 #define COMPILER_RT_USED
  27 #elif __GNUC__
  28 #ifdef _WIN32
  29 #define COMPILER_RT_FTRUNCATE(f, l) _chsize(fileno(f), l)
  30 #define COMPILER_RT_VISIBILITY
  31 #define COMPILER_RT_WEAK __attribute__((selectany))
  32 #else
  33 #define COMPILER_RT_FTRUNCATE(f, l) ftruncate(fileno(f), l)
  34 #define COMPILER_RT_VISIBILITY __attribute__((visibility("hidden")))
  35 #define COMPILER_RT_WEAK __attribute__((weak))
  36 #endif
  37 #define COMPILER_RT_ALIGNAS(x) __attribute__((aligned(x)))
  38 #define COMPILER_RT_ALLOCA __builtin_alloca
  39 #define COMPILER_RT_ALWAYS_INLINE inline __attribute((always_inline))
  40 #define COMPILER_RT_CLEANUP(x) __attribute__((cleanup(x)))
  41 #define COMPILER_RT_USED __attribute__((used))
  42 #endif
  43
  44 #if defined(__APPLE__)
  45 #define COMPILER_RT_SEG "__DATA,"
  46 #else
  47 #define COMPILER_RT_SEG ""
  48 #endif
  49
  50 #ifdef _MSC_VER
  51 #define COMPILER_RT_SECTION(Sect) __declspec(allocate(Sect))
  52 #else
  53 #define COMPILER_RT_SECTION(Sect) __attribute__((section(Sect)))
  54 #endif
  55
  56 #define COMPILER_RT_MAX_HOSTLEN 128
  57 #ifdef __ORBIS__
  58 #define COMPILER_RT_GETHOSTNAME(Name, Len) ((void)(Name), (void)(Len), (-1))
  59 #else
  60 #define COMPILER_RT_GETHOSTNAME(Name, Len) lprofGetHostName(Name, Len)
  61 #endif
  62
  63 #if COMPILER_RT_HAS_ATOMICS == 1
  64 #ifdef _WIN32
  65 #include <windows.h>
  66 #if defined(_MSC_VER) && _MSC_VER < 1900
  67 #define snprintf _snprintf
  68 #endif
  69 #if defined(_WIN64)
  70 #define COMPILER_RT_BOOL_CMPXCHG(Ptr, OldV, NewV)                              \
  71   (InterlockedCompareExchange64((LONGLONG volatile *)Ptr, (LONGLONG)NewV,      \
  72                                 (LONGLONG)OldV) == (LONGLONG)OldV)
  73 #define COMPILER_RT_PTR_FETCH_ADD(DomType, PtrVar, PtrIncr)                    \
  74   (DomType *)InterlockedExchangeAdd64((LONGLONG volatile *)&PtrVar,            \
  75                                       (LONGLONG)sizeof(DomType) * PtrIncr)
  76 #else /* !defined(_WIN64) */
  77 #define COMPILER_RT_BOOL_CMPXCHG(Ptr, OldV, NewV)                              \
  78   (InterlockedCompareExchange((LONG volatile *)Ptr, (LONG)NewV, (LONG)OldV) == \
  79    (LONG)OldV)
  80 #define COMPILER_RT_PTR_FETCH_ADD(DomType, PtrVar, PtrIncr)                    \
  81   (DomType *)InterlockedExchangeAdd((LONG volatile *)&PtrVar,                  \
  82                                     (LONG)sizeof(DomType) * PtrIncr)
  83 #endif
  84 #else /* !defined(_WIN32) */
  85 #define COMPILER_RT_BOOL_CMPXCHG(Ptr, OldV, NewV)                              \
  86   __sync_bool_compare_and_swap(Ptr, OldV, NewV)
  87 #define COMPILER_RT_PTR_FETCH_ADD(DomType, PtrVar, PtrIncr)                    \
  88   (DomType *)__sync_fetch_and_add((long *)&PtrVar, sizeof(DomType) * PtrIncr)
  89 #endif
  90 #else /* COMPILER_RT_HAS_ATOMICS != 1 */
  91 #include "InstrProfilingUtil.h"
  92 #define COMPILER_RT_BOOL_CMPXCHG(Ptr, OldV, NewV)                              \
  93   lprofBoolCmpXchg((void **)Ptr, OldV, NewV)
  94 #define COMPILER_RT_PTR_FETCH_ADD(DomType, PtrVar, PtrIncr)                    \
  95   (DomType *)lprofPtrFetchAdd((void **)&PtrVar, sizeof(DomType) * PtrIncr)
  96 #endif
  97
  98 #if defined(_WIN32)
  99 #define DIR_SEPARATOR '\\'
 100 #define DIR_SEPARATOR_2 '/'
 101 #else
 102 #define DIR_SEPARATOR '/'
 103 #endif
 104
 105 #ifndef DIR_SEPARATOR_2
 106 #define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
 107 #else /* DIR_SEPARATOR_2 */
 108 #define IS_DIR_SEPARATOR(ch)                                                   \
 109   (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
 110 #endif /* DIR_SEPARATOR_2 */
 111
 112 #if defined(_WIN32)
 113 #include <windows.h>
 114 static inline size_t getpagesize() {
 115   SYSTEM_INFO S;
 116   GetNativeSystemInfo(&S);
 117   return S.dwPageSize;
 118 }
 119 #else /* defined(_WIN32) */
 120 #include <unistd.h>
 121 #endif /* defined(_WIN32) */
 122
 123 #define PROF_ERR(Format, ...)                                                  \
 124   fprintf(stderr, "LLVM Profile Error: " Format, __VA_ARGS__);
 125
 126 #define PROF_WARN(Format, ...)                                                 \
 127   fprintf(stderr, "LLVM Profile Warning: " Format, __VA_ARGS__);
 128
 129 #define PROF_NOTE(Format, ...)                                                 \
 130   fprintf(stderr, "LLVM Profile Note: " Format, __VA_ARGS__);
 131
 132 #ifndef MAP_FILE
 133 #define MAP_FILE 0
 134 #endif
 135
 136 #ifndef O_BINARY
 137 #define O_BINARY 0
 138 #endif
 139
 140 #if defined(__FreeBSD__)
 141
 142 #include <inttypes.h>
 143 #include <sys/types.h>
 144
 145 #else /* defined(__FreeBSD__) */
 146
 147 #include <inttypes.h>
 148 #include <stdint.h>
 149
 150 #endif /* defined(__FreeBSD__) && defined(__i386__) */
 151
 152 #endif /* PROFILE_INSTRPROFILING_PORT_H_ */