HI,

> >/+#define EF_MIPS_MACH 0x00FF0000 /* Machine variant if we know it. This field was invented at Cygnus, />/+ but it is hoped that other vendors will adopt it. If some standard />/+ is developed, this code should be changed to follow it. */ />/+#define E_MIPS_MACH_3900 0x00810000 /* Cygnus is choosing values between 80 and 9F; />/+ 00 - 7F should be left for a future standard; />/+ the rest are open. */ /
> Surely after around 25 years, these comments can be more precise?
    OK, I would delete the comments.
>
> >/+/* Object attribute tags. */ />/+enum />/+{ />/+ /* 0-3 are generic. */ />/+ />/+ /* Floating-point ABI used by this object file. */ />/+ Tag_GNU_MIPS_ABI_FP = 4, />/+ />/+ /* MSA ABI used by this object file. */ />/+ Tag_GNU_MIPS_ABI_MSA = 8, />/+}; />/+ />/+/* Object attribute values. */ />/+enum />/+{ />/+ /* Values defined for Tag_GNU_MIPS_ABI_MSA. */ />/+ />/+ /* Not tagged or not using any ABIs affected by the differences. */ />/+ Val_GNU_MIPS_ABI_MSA_ANY = 0, />/+ />/+ /* Using 128-bit MSA. */ />/+ Val_GNU_MIPS_ABI_MSA_128 = 1, />/+}; /
> Any reason for using enum constants here, and not #define?  I understand
> there is other MIPS precedent, but why continue in this direction?
>
> Thanks,
>
    OK, I would change it to #define && submit PATCH v3.

    Thanks,

    Ying