platform.cc

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#ifdef __FreeBSD__
 
#include <pthread_np.h>
 
#include "src/globals.h"
#include "src/macros.h"
#include "src/platform/platform-base.h"
 
namespace broom {
namespace platform {
void* GetStackBottom() {
  pthread_attr_t attr;
  pthread_attr_init(&attr);
  int error = pthread_attr_get_np(pthread_self(), &attr);
  if (error != 0) {
    pthread_attr_destroy(&attr);
    return nullptr;
  }
  void* stack_base;
  size_t stack_size;
  error = pthread_attr_getstack(&attr, &stack_base, &stack_size);
  BENSURE_EQ(error, 0, "Unexpected pthread error");
  pthread_attr_destroy(&attr);
  return SafeCast<void*>(SafeCast<UintPtr>(stack_base) + stack_size);
}
}  // namespace platform
}  // namespace broom
#endif