fixed_code.h 1.2 KB

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  1. /*
  2. * This file defines the fixed addresses where userspace programs
  3. * can find atomic code sequences.
  4. *
  5. * Copyright 2007-2008 Analog Devices Inc.
  6. *
  7. * Licensed under the GPL-2 or later.
  8. */
  9. #ifndef __BFIN_ASM_FIXED_CODE_H__
  10. #define __BFIN_ASM_FIXED_CODE_H__
  11. #ifdef __KERNEL__
  12. #ifndef __ASSEMBLY__
  13. #include <linux/linkage.h>
  14. #include <linux/ptrace.h>
  15. extern asmlinkage void finish_atomic_sections(struct pt_regs *regs);
  16. extern char fixed_code_start;
  17. extern char fixed_code_end;
  18. extern int atomic_xchg32(void);
  19. extern int atomic_cas32(void);
  20. extern int atomic_add32(void);
  21. extern int atomic_sub32(void);
  22. extern int atomic_ior32(void);
  23. extern int atomic_and32(void);
  24. extern int atomic_xor32(void);
  25. extern void safe_user_instruction(void);
  26. extern void sigreturn_stub(void);
  27. #endif
  28. #endif
  29. #define FIXED_CODE_START 0x400
  30. #define SIGRETURN_STUB 0x400
  31. #define ATOMIC_SEQS_START 0x410
  32. #define ATOMIC_XCHG32 0x410
  33. #define ATOMIC_CAS32 0x420
  34. #define ATOMIC_ADD32 0x430
  35. #define ATOMIC_SUB32 0x440
  36. #define ATOMIC_IOR32 0x450
  37. #define ATOMIC_AND32 0x460
  38. #define ATOMIC_XOR32 0x470
  39. #define ATOMIC_SEQS_END 0x480
  40. #define SAFE_USER_INSTRUCTION 0x480
  41. #define FIXED_CODE_END 0x490
  42. #endif