| Message ID | 20161126042724.15461-1-pefoley2@pefoley.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Peter,
[auto build test ERROR on kbuild/for-next]
[also build test ERROR on v4.9-rc6 next-20161125]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Peter-Foley/Fixes-for-compiling-with-clang/20161126-124017
base: https://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild.git for-next
config: avr32-atngw100_defconfig (attached as .config)
compiler: avr-gcc (GCC) 4.9.2
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=avr32
All errors (new ones prefixed by >>):
>> /bin/sh: 0: Illegal option -
--
>> /bin/sh: 0: Illegal option -
kernel/time/Kconfig:155:warning: range is invalid
--
>> /bin/sh: 0: Illegal option -
kernel/time/Kconfig:155:warning: range is invalid
>> /bin/sh: 0: Illegal option -
avr-gcc: error: unrecognized command line option '-mno-pic'
avr-gcc: error: unrecognized command line option '-march=ap'
make[2]: *** [kernel/bounds.s] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [prepare0] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [sub-make] Error 2
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
Hi Peter,
[auto build test ERROR on kbuild/for-next]
[also build test ERROR on v4.9-rc6 next-20161125]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Peter-Foley/Fixes-for-compiling-with-clang/20161126-124017
base: https://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild.git for-next
config: alpha-allyesconfig (attached as .config)
compiler: alpha-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=alpha
All errors (new ones prefixed by >>):
>> /bin/bash: - : invalid option
Usage: /bin/bash [GNU long option] [option] ...
/bin/bash [GNU long option] [option] script-file ...
GNU long options:
--debug
--debugger
--dump-po-strings
--dump-strings
--help
--init-file
--login
--noediting
--noprofile
--norc
--posix
--rcfile
--restricted
--verbose
--version
Shell options:
-ilrsD or -c command or -O shopt_option (invocation only)
-abefhkmnptuvxBCHP or -o option
make[1]: *** [vmlinux] Error 1
make[1]: Target '_all' not remade because of errors.
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
diff --git a/Makefile b/Makefile index 0ede48ba5aaf..b69ad7e4a6d2 100644 --- a/Makefile +++ b/Makefile @@ -299,16 +299,6 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ else if [ -x /bin/bash ]; then echo /bin/bash; \ else echo sh; fi ; fi) -HOSTCC = gcc -HOSTCXX = g++ -HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89 -HOSTCXXFLAGS = -O2 - -ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) -HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ - -Wno-missing-field-initializers -fno-delete-null-pointer-checks -endif - # Decide whether to build built-in, modular, or both. # Normally, just do built-in. @@ -343,6 +333,16 @@ export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD scripts/Kbuild.include: ; include scripts/Kbuild.include +HOSTCC = gcc +HOSTCXX = g++ +HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89 \ + -Wno-unused-value -Wno-unused-parameter -Wno-missing-field-initializers +HOSTCXXFLAGS = -O2 + +ifneq ($(cc-name),clang) +HOSTCFLAGS += -fno-delete-null-pointer-checks +endif + # Make variables (CC, etc...) AS = $(CROSS_COMPILE)as LD = $(CROSS_COMPILE)ld @@ -685,6 +685,7 @@ KBUILD_CFLAGS += $(stackp-flag) ifeq ($(cc-name),clang) KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) +KBUILD_CFLAGS += $(call cc-disable-warning, ignored-optimization-argument) KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) KBUILD_CFLAGS += $(call cc-disable-warning, gnu) @@ -695,6 +696,8 @@ KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) # See modpost pattern 2 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) +KBUILD_CFLAGS += $(call cc-option, -fno-integrated-as) +KBUILD_AFLAGS += $(call cc-option, -fno-integrated-as) else # These warnings generated too much noise in a regular build.
Move definition of HOSTCC to allow use of cc-name. Suppress warnings about unsupported optimization options. Disable clang's integrated assembler which is incompatible with kernel asm constructs. Signed-off-by: Peter Foley <pefoley2@pefoley.com> --- Makefile | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-)