bloat_this_binary.h

// Copyright 2019 The Pigweed Authors
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#pragma once
 
#include <cstdint>
 
namespace pw::bloat {
 
// Function providing fundamental C/C++ functions to prevent them from appearing
// in size reports. Must be called in binaries which are compared to the bloat
// base in order to get accurate reports.
void BloatThisBinary();
 
[[maybe_unused]] constexpr uint32_t kDefaultMask = ~0u;
 
#define PW_BLOAT_COND(cond, mask)     \
  do {                                \
    if ((mask & 1) != 0 && (cond)) {  \
      mask = (mask >> 1) | 0x8000000; \
    } else {                          \
      mask >>= 1;                     \
    }                                 \
  } while (0)
 
#define PW_BLOAT_EXPR(expr, mask)     \
  do {                                \
    if ((mask & 1) != 0) {            \
      (expr);                         \
      mask = (mask >> 1) | 0x8000000; \
    } else {                          \
      mask >>= 1;                     \
    }                                 \
  } while (0)
 
}  // namespace pw::bloat