switch_loongarch64_linux.h 779 B

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  1. #define STACK_REFPLUS 1
  2. #ifdef SLP_EVAL
  3. #define STACK_MAGIC 0
  4. #define REGS_TO_SAVE "s0", "s1", "s2", "s3", "s4", "s5", \
  5. "s6", "s7", "s8", "fp", \
  6. "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31"
  7. static int
  8. slp_switch(void)
  9. {
  10. int ret;
  11. long *stackref, stsizediff;
  12. __asm__ volatile ("" : : : REGS_TO_SAVE);
  13. __asm__ volatile ("move %0, $sp" : "=r" (stackref) : );
  14. {
  15. SLP_SAVE_STATE(stackref, stsizediff);
  16. __asm__ volatile (
  17. "add.d $sp, $sp, %0\n\t"
  18. : /* no outputs */
  19. : "r" (stsizediff)
  20. );
  21. SLP_RESTORE_STATE();
  22. }
  23. __asm__ volatile ("" : : : REGS_TO_SAVE);
  24. __asm__ volatile ("move %0, $zero" : "=r" (ret) : );
  25. return ret;
  26. }
  27. #endif