da0de8a237
Currently we register instrumentation data at runtime to determine the bounds of the sections where the data lives. Soon we'll implement platform-specific linker magic to determine this at link time. Move this logic to a separate file, so that our build system can choose the correct platform-specific code. No functionality change intended. <rdar://problem/15943240> llvm-svn: 204299
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*===- InstrProfiling.h- Support library for PGO instrumentation ----------===*\
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|*
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|* The LLVM Compiler Infrastructure
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|*
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|* This file is distributed under the University of Illinois Open Source
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|* License. See LICENSE.TXT for details.
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|*
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\*===----------------------------------------------------------------------===*/
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#include <stdio.h>
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#include <stdlib.h>
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#define I386_FREEBSD (defined(__FreeBSD__) && defined(__i386__))
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#if !I386_FREEBSD
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#include <inttypes.h>
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#endif
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#if !defined(_MSC_VER) && !I386_FREEBSD
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#include <stdint.h>
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#endif
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#if defined(_MSC_VER)
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typedef unsigned int uint32_t;
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typedef unsigned long long uint64_t;
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#elif I386_FREEBSD
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/* System headers define 'size_t' incorrectly on x64 FreeBSD (prior to
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* FreeBSD 10, r232261) when compiled in 32-bit mode.
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*/
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#define PRIu64 "llu"
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typedef unsigned int uint32_t;
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typedef unsigned long long uint64_t;
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#endif
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typedef struct __llvm_pgo_data {
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const uint32_t NameSize;
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const uint32_t NumCounters;
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const uint64_t FuncHash;
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const char *const Name;
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const uint64_t *const Counters;
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} __llvm_pgo_data;
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/* TODO: void __llvm_pgo_get_size_for_buffer(void); */
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/*!
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* \brief Write instrumentation data to the given buffer.
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*
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* This function is currently broken: it shouldn't rely on libc, but it does.
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* It should be changed to take a char* buffer, and write binary data directly
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* to it.
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*/
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void __llvm_pgo_write_buffer(FILE *OutputFile);
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const __llvm_pgo_data *__llvm_pgo_data_begin();
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const __llvm_pgo_data *__llvm_pgo_data_end();
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const char *__llvm_pgo_names_begin();
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const char *__llvm_pgo_names_end();
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const uint64_t *__llvm_pgo_counters_begin();
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const uint64_t *__llvm_pgo_counters_end();
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