Combine ELF sysvecs for MIPS to reduce code duplication.

[jhb]

Summary

Tested on: mips, mips64

[brooks]

sys/mips/mips/elf_machdep.c

54 ↗

(On Diff #64294)

Should this be __elfN(freebsd_sysvec) to match the things below and preserve the name of the public symbol?

[jhb]

sys/mips/mips/elf_machdep.c

54 ↗

(On Diff #64294)

It doesn't have to be, and really it could be a static variable instead of a global. It's just passed as the pointer in the .sysvec array, there aren't any other references to it. Note that the brand info is called 'freebsd_brand_info' instead of 'freebsd32/64_brand_info'. Ironically, sparc64 gets this right and marks it static. Looks like i386 does have a few other references to the elf32_freebsd_sysvec for some one-off special cases and that the lack of static was just copied from i386 to other platforms due to cargo cult.

[brooks]

It's probably worth making elf_freebsd_sysvec static, but this is fine.

[jhb]

I will make it static for commit.