On 2016-10-23 12:23 -0700, Joe Perches wrote:
> On Sun, 2016-10-23 at 18:19 +0200, Sven Joachim wrote:
>> On 2016-10-21 23:21 +0200, Adam Borowski wrote:
>> > On Fri, Oct 21, 2016 at 01:16:00PM +0200, Sebastian Andrzej Siewior wrote:
>> > > Debian started to build the gcc with --enable-default-pie by default
> []
>> > > diff --git a/Makefile b/Makefile
> []
>> > > @@ -398,7 +398,7 @@ KBUILD_CPPFLAGS := -D__KERNEL__
>> > > KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
>> > > -fno-strict-aliasing -fno-common \
>> > > -Werror-implicit-function-declaration \
>> > > - -Wno-format-security \
>> > > + -Wno-format-security -fno-PIE \
>> > > -std=gnu89
>
> I've used this here instead:
>
> KBUILD_CFLAGS += $(call cc-option,-fno-pie)
Where exactly do you set that? I tried this patch:
--8<---------------cut here---------------start------------->8---
diff --git a/Makefile b/Makefile
index 93beca4..fde1e21 100644
--- a/Makefile
+++ b/Makefile
@@ -619,6 +619,7 @@ ARCH_AFLAGS :=
ARCH_CFLAGS :=
include arch/$(SRCARCH)/Makefile
+KBUILD_CFLAGS += $(call cc-option,-fno-pie,)
KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
KBUILD_CFLAGS += $(call cc-disable-warning,maybe-uninitialized,)
KBUILD_CFLAGS += $(call cc-disable-warning,frame-address,)
--8<---------------cut here---------------end--------------->8---
But make still fails with it. :-(
,----
| $ LANG=C make
| scripts/kconfig/conf --silentoldconfig Kconfig
| SYSTBL arch/x86/entry/syscalls/../../include/generated/asm/syscalls_32.h
| SYSHDR arch/x86/entry/syscalls/../../include/generated/asm/unistd_32_ia32.h
| SYSHDR arch/x86/entry/syscalls/../../include/generated/asm/unistd_64_x32.h
| SYSTBL arch/x86/entry/syscalls/../../include/generated/asm/syscalls_64.h
| SYSHDR arch/x86/entry/syscalls/../../include/generated/uapi/asm/unistd_32.h
| SYSHDR arch/x86/entry/syscalls/../../include/generated/uapi/asm/unistd_64.h
| SYSHDR
arch/x86/entry/syscalls/../../include/generated/uapi/asm/unistd_x32.h
| HOSTCC arch/x86/tools/relocs_32.o
| HOSTCC arch/x86/tools/relocs_64.o
| HOSTCC arch/x86/tools/relocs_common.o
| HOSTLD arch/x86/tools/relocs
| CHK include/config/kernel.release
| UPD include/config/kernel.release
| Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong
available but compiler is broken
| Makefile:1066: recipe for target 'prepare-compiler-check' failed
| make: *** [prepare-compiler-check] Error 1
`----
Cheers,
Sven
