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author | Dimitry Andric <dim@FreeBSD.org> | 2016-09-03 21:41:29 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2016-09-03 21:41:29 +0000 |
commit | 53b715b5ba3f838ab20de8d3f34297c6555c7981 (patch) | |
tree | 264810938cd5b02b228fb2193588d88398d58d83 /contrib/compiler-rt/lib/profile/InstrProfiling.h | |
parent | c22165b4f1f5d38b681921797a44b3ba8c13b7e0 (diff) | |
parent | b58b5b4a2eef87f528c56a9e91d9bfeba74ac210 (diff) | |
download | src-test2-53b715b5ba3f838ab20de8d3f34297c6555c7981.tar.gz src-test2-53b715b5ba3f838ab20de8d3f34297c6555c7981.zip |
Notes
Diffstat (limited to 'contrib/compiler-rt/lib/profile/InstrProfiling.h')
-rw-r--r-- | contrib/compiler-rt/lib/profile/InstrProfiling.h | 68 |
1 files changed, 59 insertions, 9 deletions
diff --git a/contrib/compiler-rt/lib/profile/InstrProfiling.h b/contrib/compiler-rt/lib/profile/InstrProfiling.h index d27ca569d535..b23bed8ea3a8 100644 --- a/contrib/compiler-rt/lib/profile/InstrProfiling.h +++ b/contrib/compiler-rt/lib/profile/InstrProfiling.h @@ -11,6 +11,8 @@ #define PROFILE_INSTRPROFILING_H_ #include "InstrProfilingPort.h" + +#define INSTR_PROF_VISIBILITY COMPILER_RT_VISIBILITY #include "InstrProfData.inc" enum ValueKind { @@ -30,6 +32,12 @@ typedef struct __llvm_profile_header { #include "InstrProfData.inc" } __llvm_profile_header; +typedef struct ValueProfNode * PtrToNodeT; +typedef struct ValueProfNode { +#define INSTR_PROF_VALUE_NODE(Type, LLVMType, Name, Initializer) Type Name; +#include "InstrProfData.inc" +} ValueProfNode; + /*! * \brief Get number of bytes necessary to pad the argument to eight * byte boundary. @@ -55,6 +63,8 @@ const char *__llvm_profile_begin_names(void); const char *__llvm_profile_end_names(void); uint64_t *__llvm_profile_begin_counters(void); uint64_t *__llvm_profile_end_counters(void); +ValueProfNode *__llvm_profile_begin_vnodes(); +ValueProfNode *__llvm_profile_end_vnodes(); /*! * \brief Clear profile counters to zero. @@ -63,6 +73,27 @@ uint64_t *__llvm_profile_end_counters(void); void __llvm_profile_reset_counters(void); /*! + * \brief Merge profile data from buffer. + * + * Read profile data form buffer \p Profile and merge with + * in-process profile counters. The client is expected to + * have checked or already knows the profile data in the + * buffer matches the in-process counter structure before + * calling it. + */ +void __llvm_profile_merge_from_buffer(const char *Profile, uint64_t Size); + +/*! \brief Check if profile in buffer matches the current binary. + * + * Returns 0 (success) if the profile data in buffer \p Profile with size + * \p Size was generated by the same binary and therefore matches + * structurally the in-process counters. If the profile data in buffer is + * not compatible, the interface returns 1 (failure). + */ +int __llvm_profile_check_compatibility(const char *Profile, + uint64_t Size); + +/*! * \brief Counts the number of times a target value is seen. * * Records the target value for the CounterIndex if not seen before. Otherwise, @@ -73,15 +104,7 @@ void __llvm_profile_reset_counters(void); void INSTR_PROF_VALUE_PROF_FUNC( #define VALUE_PROF_FUNC_PARAM(ArgType, ArgName, ArgLLVMType) ArgType ArgName #include "InstrProfData.inc" -); - -/*! - * \brief Prepares the value profiling data for output. - * - * Returns an array of pointers to value profile data. - */ -struct ValueProfData; -struct ValueProfData **__llvm_profile_gather_value_data(uint64_t *Size); + ); /*! * \brief Write instrumentation data to the current file. @@ -131,4 +154,31 @@ uint64_t __llvm_profile_get_magic(void); /*! \brief Get the version of the file format. */ uint64_t __llvm_profile_get_version(void); +/*! \brief Get the number of entries in the profile data section. */ +uint64_t __llvm_profile_get_data_size(const __llvm_profile_data *Begin, + const __llvm_profile_data *End); + +/*! + * This variable is defined in InstrProfilingRuntime.cc as a hidden + * symbol. Its main purpose is to enable profile runtime user to + * bypass runtime initialization code -- if the client code explicitly + * define this variable, then InstProfileRuntime.o won't be linked in. + * Note that this variable's visibility needs to be hidden so that the + * definition of this variable in an instrumented shared library won't + * affect runtime initialization decision of the main program. + */ +COMPILER_RT_VISIBILITY extern int __llvm_profile_runtime; + +/*! + * This variable is defined in InstrProfiling.c. Its main purpose is to + * encode the raw profile version value and other format related information + * such as whether the profile is from IR based instrumentation. The variable + * is defined as weak so that compiler can emit an overriding definition + * depending on user option. Since we don't support mixing FE and IR based + * data in the same raw profile data file (in other words, shared libs and + * main program are expected to be instrumented in the same way), there is + * no need for this variable to be hidden. + */ +extern uint64_t __llvm_profile_raw_version; + #endif /* PROFILE_INSTRPROFILING_H_ */ |