fuchsia.inc 444 B

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  1. #include <zircon/syscalls.h>
  2. static void CONSTRUCTOR_ATTRIBUTE init_have_lse_atomics(void) {
  3. // This ensures the vDSO is a direct link-time dependency of anything that
  4. // needs this initializer code.
  5. #pragma comment(lib, "zircon")
  6. uint32_t features;
  7. zx_status_t status = _zx_system_get_features(ZX_FEATURE_KIND_CPU, &features);
  8. __aarch64_have_lse_atomics =
  9. status == ZX_OK && (features & ZX_ARM64_FEATURE_ISA_ATOMICS) != 0;
  10. }