Function populateFormatStringHashMap

rocclr/device/devhcprintf.cpp:257–273

Extract the format string hash and the format string. The compiler generates the amdhsa.printf metadata in following format for HIP nonhostcall case. "0:0: , " i.e the hash is part of the format string itself delimited by character ','.

// i.e the hash is part of the format string itself
// delimited by character ','.
bool populateFormatStringHashMap(const std::vector<device::PrintfInfo>& printfInfo,
                                 std::map<uint64_t, std::string>& strMap) {
  for (auto it : printfInfo) {
    auto Delim = it.fmtString_.find_first_of(',');
    auto HashStr = it.fmtString_.substr(0, Delim);

    static_assert(sizeof(long long) == sizeof(uint64_t), "unexpected long long type width");
    auto HashVal = std::strtoull(HashStr.c_str(), NULL, 16);
    if (strMap.find(HashVal) != strMap.end()) {
      LogError("Hash value collision detected, printf buffer ill formed");
      return false;
    }
    strMap[HashVal] = it.fmtString_.substr(Delim + 1, it.fmtString_.size());
  }

  return true;
}

void handlePrintfDelayed(const uint64_t* input, uint64_t len, uint64_t control) {
  auto end = input + len;