goid_go1.5.s 1.1 KB

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  1. // Copyright 2021 Peter Mattis.
  2. //
  3. // Licensed under the Apache License, Version 2.0 (the "License");
  4. // you may not use this file except in compliance with the License.
  5. // You may obtain a copy of the License at
  6. //
  7. // http://www.apache.org/licenses/LICENSE-2.0
  8. //
  9. // Unless required by applicable law or agreed to in writing, software
  10. // distributed under the License is distributed on an "AS IS" BASIS,
  11. // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  12. // implied. See the License for the specific language governing
  13. // permissions and limitations under the License. See the AUTHORS file
  14. // for names of contributors.
  15. // Assembly to mimic runtime.getg.
  16. //go:build (386 || amd64 || amd64p32 || arm || arm64 || s390x) && gc && go1.5
  17. // +build 386 amd64 amd64p32 arm arm64 s390x
  18. // +build gc
  19. // +build go1.5
  20. #include "textflag.h"
  21. // func getg() *g
  22. TEXT ·getg(SB),NOSPLIT,$0-8
  23. #ifdef GOARCH_386
  24. MOVL (TLS), AX
  25. MOVL AX, ret+0(FP)
  26. #endif
  27. #ifdef GOARCH_amd64
  28. MOVQ (TLS), AX
  29. MOVQ AX, ret+0(FP)
  30. #endif
  31. #ifdef GOARCH_arm
  32. MOVW g, ret+0(FP)
  33. #endif
  34. #ifdef GOARCH_arm64
  35. MOVD g, ret+0(FP)
  36. #endif
  37. #ifdef GOARCH_s390x
  38. MOVD g, ret+0(FP)
  39. #endif
  40. RET