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
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/*===- InstrProfiling.c - 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 "InstrProfiling.h"
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/* TODO: void __llvm_pgo_get_size_for_buffer(void); */
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static void writeFunction(FILE *OutputFile, const __llvm_pgo_data *Data) {
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/* TODO: Requires libc: break requirement by writing directly to a buffer
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* instead of a FILE stream.
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*/
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uint32_t I;
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for (I = 0; I < Data->NameSize; ++I)
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fputc(Data->Name[I], OutputFile);
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fprintf(OutputFile, "\n%" PRIu64 "\n%u\n", Data->FuncHash, Data->NumCounters);
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for (I = 0; I < Data->NumCounters; ++I)
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fprintf(OutputFile, "%" PRIu64 "\n", Data->Counters[I]);
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fprintf(OutputFile, "\n");
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}
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void __llvm_pgo_write_buffer(FILE *OutputFile) {
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/* TODO: Requires libc: break requirement by taking a char* buffer instead of
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* a FILE stream.
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*/
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const __llvm_pgo_data *I, *E;
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for (I = __llvm_pgo_data_begin(), E = __llvm_pgo_data_end();
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I != E; ++I)
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writeFunction(OutputFile, I);
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}
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