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Update MIPS kernel builds to work with mips-gcc.
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Authored by jhb on Oct 14 2019, 9:45 PM.

Details

Summary
  • Use a default -march of mips64 on N64 and N32 kernels.
  • Set the endianness (via MIPS_ENDIAN) and ABI (via MIPS_ABI) in CFLAGS from MACHINE_ARCH. ARCH_FLAGS now only sets a different -march value if needed.
  • TRAMP_ARCH_FLAGS inherits MIPS_ENDIAN from MACHINE_ARCH but does not set the ABI since XLPN32 needs an N64 ABI for the trampoline loader. When TRAMP_ARCH_FLAGS is used it must set both -march and -mabi.
Test Plan
  • make TARGETS=mips CROSS_TOOLCHAIN=mips-gcc

Diff Detail

Repository
rS FreeBSD src repository
Lint
Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

jhb created this revision.Oct 14 2019, 9:45 PM
imp accepted this revision.Oct 15 2019, 4:50 PM

Ah, the missing context makes sense... this is good.

This revision is now accepted and ready to land.Oct 15 2019, 4:50 PM
This revision was automatically updated to reflect the committed changes.