uClibc_arch_features.h 1.7 KB

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  1. /*
  2. * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
  3. *
  4. * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
  5. */
  6. /*
  7. * Track misc arch-specific features that aren't config options
  8. */
  9. #ifndef _BITS_UCLIBC_ARCH_FEATURES_H
  10. #define _BITS_UCLIBC_ARCH_FEATURES_H
  11. /* instruction used when calling abort() to kill yourself */
  12. #define __UCLIBC_ABORT_INSTRUCTION__ "flag 0"
  13. /* can your target use syscall6() for mmap ? */
  14. #undef __UCLIBC_MMAP_HAS_6_ARGS__
  15. /* does your target have a broken create_module() ? */
  16. #undef __UCLIBC_BROKEN_CREATE_MODULE__
  17. /* does your target have to worry about older [gs]etrlimit() ? */
  18. #undef __UCLIBC_HANDLE_OLDER_RLIMIT__
  19. /* does your target have an asm .set ? */
  20. #define __UCLIBC_HAVE_ASM_SET_DIRECTIVE__
  21. /* define if target supports .weak */
  22. #define __UCLIBC_HAVE_ASM_WEAK_DIRECTIVE__
  23. /* define if target supports .weakext */
  24. #undef __UCLIBC_HAVE_ASM_WEAKEXT_DIRECTIVE__
  25. /* define if target supports CFI pseudo ops */
  26. #undef __UCLIBC_HAVE_ASM_CFI_DIRECTIVES__
  27. /* define if target supports IEEE signed zero floats */
  28. #define __UCLIBC_HAVE_SIGNED_ZERO__
  29. /* The default ';' is a comment on ARC. */
  30. #define __UCLIBC_ASM_LINE_SEP__ `
  31. /* does your target align 64bit values in register pairs ? (32bit arches only)
  32. * - ARC700 never had any constraint on reg pairs (even if ABI v3)
  33. * - Inital HS ABI (v3: non upstream gcc) had 64-bit data aligned in even-odd
  34. * reg pairs (thus allowed reg holes when passing such args to calls)
  35. * - Upstream gcc (6.x) HS ABI doesn't have that restriction
  36. */
  37. #if defined(__A7__) || (__GNUC__ > 4)
  38. #undef __UCLIBC_SYSCALL_ALIGN_64BIT__
  39. #else
  40. #define __UCLIBC_SYSCALL_ALIGN_64BIT__
  41. #endif
  42. #endif /* _BITS_UCLIBC_ARCH_FEATURES_H */