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rust: arch/um: Use 'pie' relocation mode under UML 

UML expects a position independent executable for some reason, so tell
rustc to generate pie objects. Otherwise we get a bunch of relocations
we can't deal with in libcore.

Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
David Gow 2022-12-17 12:44:34 +08:00 committed by Richard Weinberger
parent d5dbcfe7ee
commit 905a770775
1 changed files with 2 additions and 0 deletions
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arch/um/Makefile
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@ -68,6 +68,8 @@ KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ \
-Din6addr_loopback=kernel_in6addr_loopback \ -Din6addr_loopback=kernel_in6addr_loopback \
-Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr -Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr
KBUILD_RUSTFLAGS += -Crelocation-model=pie
KBUILD_AFLAGS += $(ARCH_INCLUDE) KBUILD_AFLAGS += $(ARCH_INCLUDE)
USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -I%,,$(KBUILD_CFLAGS))) \ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -I%,,$(KBUILD_CFLAGS))) \