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Makefile: explicitly disable PIE

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Modern GCC can be configured to default to PIE. To support
such toolchains, turn PIE off as otherwise the generated
binaries are broken in multiple ways (e.g. the ELF will have
additional sections that get inserted at end of _TEXT_SECTION
making __data_rom_start point to these sections and not
the data secions).

Signed-off-by: Timo Teräs <timo.teras@iki.fi>
This commit is contained in:
Timo Teräs 2017-07-19 22:22:49 +03:00 committed by Andrew Boie
parent 7bace4c290
commit cdec108bfe
1 changed files with 3 additions and 0 deletions
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3
Makefile
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@ -660,6 +660,8 @@ endif
# Some GCC variants don't support these
KBUILD_CFLAGS += $(call cc-option,-fno-asynchronous-unwind-tables,)
KBUILD_CFLAGS += $(call cc-option,-fno-pie,)
KBUILD_CFLAGS += $(call cc-option,-fno-pic,)
ifeq ($(CONFIG_STACK_CANARIES),y)
KBUILD_CFLAGS += $(call cc-option,-fstack-protector-all,)
@ -754,6 +756,7 @@ KBUILD_CFLAGS += $(KCFLAGS)
LINKFLAGPREFIX ?= -Wl,
LDFLAGS_zephyr += $(LDFLAGS)
LDFLAGS_zephyr += $(call cc-ldoption,-no-pie)
LDFLAGS_zephyr += $(call cc-ldoption,$(LINKFLAGPREFIX)-X)
LDFLAGS_zephyr += $(call cc-ldoption,$(LINKFLAGPREFIX)-N)
LDFLAGS_zephyr += $(call cc-ldoption,$(LINKFLAGPREFIX)--gc-sections)