Date: Sat, 29 Nov 2014 18:50:54 -0800 From: Dieter BSD <dieterbsd@gmail.com> To: freebsd-hackers@freebsd.org Subject: klang refuses to compile kernel Message-ID: <CAA3ZYrDcKKHcWB5jgCGaAuAwigwk86v0Z-%2B5yL_uUHmWWOd5pQ@mail.gmail.com>
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10.1 on amd64
Attempting to compile a kernel, but klang throws up:
>>> stage 3.1: making dependencies
...
cc -c -O2 -frename-registers -pipe -fno-strict-aliasing -std=c99 -g -Wall
-Wredundant-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes
-Wpointer-arith -Winline -Wcast-qual -Wundef -Wno-pointer-sign
-fformat-extensions -Wmissing-include-dirs -fdiagnostics-show-option
-nostdinc -I. -I/usr/src/sys -I/usr/src/sys/contrib/altq
-I/usr/src/sys/contrib/ipfilter -I/usr/src/sys/dev/ath
-I/usr/src/sys/dev/ath/ath_hal -I/usr/src/sys/contrib/dev/ath/ath_hal
-I/usr/src/sys/contrib/ngatm -I/usr/src/sys/dev/twa -I/usr/src/sys/dev/cxgb
-I/usr/src/sys/dev/cxgbe -I/usr/src/sys/contrib/libfdt -D_KERNEL
-DHAVE_KERNEL_OPTION_HEADERS -include opt_global.h -finline-limit=8000
--param inline-unit-growth=100 --param large-function-growth=1000
-fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -mcmodel=kernel
-mno-red-zone -mno-mmx -mno-sse -msoft-float -fno-asynchronous-unwind-tables
-ffreestanding -fstack-protector /usr/src/sys/amd64/amd64/genassym.c
cc: error: unknown argument: '-frename-registers'
cc: error: unknown argument: '-finline-limit=8000'
*** Error code 1
The mighty google found 7 hits, none of which are useful.
Find(1) did not find gcc.
The source of -frename-registers must be:
/usr/src/sys/conf/kern.pre.mk
.if ${COMPILER_TYPE} != "clang"
COPTFLAGS?=-O2 -frename-registers -pipe
.else
COPTFLAGS?=-O2 -pipe
.endif
So it looks like make doesn't know what compiler it is using?
find /usr/src/ | xargs grep "inline-limit=8000"
didn't find anything.
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