[PGO] move raw magic and version def to InstrProfData.inc

[oota-llvm.git] / include / llvm / ProfileData / InstrProfData.inc

diff --git a/include/llvm/ProfileData/InstrProfData.inc b/include/llvm/ProfileData/InstrProfData.inc
index 6c9bf2725a9b8c6af76612e4d848bf0272d5b0cc..1452baeb06f5c6ae572a6afba6a60a9429589b90 100644 (file)
--- a/include/llvm/ProfileData/InstrProfData.inc
+++ b/include/llvm/ProfileData/InstrProfData.inc
@@ -176,6 +176,24 @@ COVMAP_FUNC_RECORD(const uint64_t, llvm::Type::getInt64Ty(Ctx), FuncHash, \
 #ifndef INSTR_PROF_DATA_INC_
 #define INSTR_PROF_DATA_INC_
 
+/* Magic number to detect file format and endianness.
+ * Use 255 at one end, since no UTF-8 file can use that character.  Avoid 0,             
+ * so that utilities, like strings, don't grab it as a string.  129 is also              
+ * invalid UTF-8, and high enough to be interesting.
+ * Use "lprofr" in the centre to stand for "LLVM Profile Raw", or "lprofR"               
+ * for 32-bit platforms.
+ * The magic and version need to be kept in sync with                                    
+ * projects/compiler-rt/lib/profile/InstrProfiling.c                                     
+ */
+#define INSTR_PROF_RAW_MAGIC_64 uint64_t(255) << 56 | uint64_t('l') << 48 | \
+       uint64_t('p') << 40 | uint64_t('r') << 32 | uint64_t('o') << 24 |  \
+        uint64_t('f') << 16 | uint64_t('r') << 8 | uint64_t(129)
+#define INSTR_PROF_RAW_MAGIC_32 uint64_t(255) << 56 | uint64_t('l') << 48 | \
+       uint64_t('p') << 40 | uint64_t('r') << 32 | uint64_t('o') << 24 |  \
+        uint64_t('f') << 16 | uint64_t('R') << 8 | uint64_t(129)
+
+/* Raw profile format version. */
+#define INSTR_PROF_RAW_VERSION 2
 
 #endif /* INSTR_PROF_DATA_INC_ */