Differential D22030

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

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rS353572: Update MIPS kernel builds to work with mips-gcc.

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 - subversion

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Event Timeline

jhb created this revision.Oct 14 2019, 9:45 PM

Harbormaster completed remote builds in B27033: Diff 63273.Oct 14 2019, 9:45 PM

jhb added child revisions: D22031: Don't set the OUTPUT_FORMAT explicitly but let ld derive it., D22032: Fix a write-only variable warning from external GCC., D22033: Use -march=octeon+ for OCTEON1 to use the saa instruction..Oct 14 2019, 9:48 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

Closed by commit rS353572: Update MIPS kernel builds to work with mips-gcc. (authored by jhb). · Explain WhyOct 15 2019, 5:12 PM

This revision was automatically updated to reflect the committed changes.

jhb added a commit: rS353572: Update MIPS kernel builds to work with mips-gcc..

Revision Contents
Changeset List

Path

Size

head/

sys/

conf/

10 lines

mips/

conf/

2 lines

2 lines

2 lines

1 line

2 lines

2 lines

2 lines

1 line

2 lines

Diff 63305

head/sys/conf/Makefile.mips

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head/sys/mips/conf/ERL

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head/sys/mips/conf/JZ4780

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head/sys/mips/conf/MALTA64

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head/sys/mips/conf/MALTA64EL

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head/sys/mips/conf/OCTEON1

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head/sys/mips/conf/X1000

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head/sys/mips/conf/XLP64

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head/sys/mips/conf/XLPN32

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head/sys/mips/conf/std.BERI

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