LLVM: lib/Support/SipHash.cpp Source File (original) (raw)

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15#include "siphash/SipHash.h"

21#include

22

23using namespace llvm;

25

26#define DEBUG_TYPE "llvm-siphash"

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30 siphash<2, 4>(In.data(), In.size(), K, Out);

31}

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35 siphash<2, 4>(In.data(), In.size(), K, Out);

36}

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40 static const uint8_t K[16] = {0xb5, 0xd4, 0xc9, 0xeb, 0x79, 0x10, 0x4a, 0x79,

41 0x6f, 0xec, 0x8b, 0x1b, 0x42, 0x87, 0x81, 0xd4};

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46}

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53 uint16_t Discriminator = (RawHash % 0xFFFF) + 1;

55 dbgs() << "ptrauth stable hash discriminator: " << utostr(Discriminator)

56 << " (0x"

57 << utohexstr(Discriminator, false, 4)

58 << ")"

59 << " of: " << Str << "\n");

60 return Discriminator;

61}

ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory),...

StringRef - Represent a constant reference to a string, i.e.

uint64_t read64le(const void *P)

This is an optimization pass for GlobalISel generic memory operations.

LLVM_ABI void getSipHash_2_4_64(ArrayRef< uint8_t > In, const uint8_t(&K)[16], uint8_t(&Out)[8])

Computes a SipHash-2-4 64-bit result.

Definition SipHash.cpp:28

ArrayRef< CharT > arrayRefFromStringRef(StringRef Input)

Construct a string ref from an array ref of unsigned chars.

std::string utohexstr(uint64_t X, bool LowerCase=false, unsigned Width=0)

std::string utostr(uint64_t X, bool isNeg=false)

LLVM_ABI raw_ostream & dbgs()

dbgs() - This returns a reference to a raw_ostream for debugging messages.

LLVM_ABI uint64_t getStableSipHash(StringRef Str)

Compute a stable 64-bit hash of the given string.

Definition SipHash.cpp:39

LLVM_ABI uint16_t getPointerAuthStableSipHash(StringRef S)

Compute a stable non-zero 16-bit hash of the given string.

Definition SipHash.cpp:49

LLVM_ABI void getSipHash_2_4_128(ArrayRef< uint8_t > In, const uint8_t(&K)[16], uint8_t(&Out)[16])

Computes a SipHash-2-4 128-bit result.

Definition SipHash.cpp:33