[PATCH 2/2] kbuild: add -fno-PIE
From: Sebastian Andrzej Siewior
Date: Wed Nov 02 2016 - 13:21:24 EST
Debian started to build the gcc with -fPIE by default so the kernel
build ends before it starts properly with:
|kernel/bounds.c:1:0: error: code model kernel does not support PIC mode
Also add to KBUILD_AFLAGSi due to:
|gcc -Wp,-MD,arch/x86/entry/vdso/vdso32/.note.o.d â -mfentry -DCC_USING_FENTRY â vdso/vdso32/note.S
|arch/x86/entry/vdso/vdso32/note.S:1:0: sorry, unimplemented: -mfentry isnât supported for 32-bit in c ombination with -fpic
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
index 93beca4312c4..3e0a9afa428f 100644
--- a/Makefile
+++ b/Makefile
@@ -398,12 +398,12 @@ 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
KBUILD_AFLAGS_KERNEL :=
KBUILD_CFLAGS_KERNEL :=
-KBUILD_AFLAGS := -D__ASSEMBLY__
+KBUILD_AFLAGS := -D__ASSEMBLY__ -fno-PIE
KBUILD_AFLAGS_MODULE := -DMODULE
KBUILD_CFLAGS_MODULE := -DMODULE
KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
--
2.10.2