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- From: Petr Vorel <petr.vorel@gmail.com>
- Date: Fri, 10 Jun 2022 09:13:09 +0200
- Subject: [PATCH] kvm: Fix undefined reference to __stack_chk_fail()
- Some x86_64 buildroot toolchains (bootlin-x86-64-glibc,
- bootlin-x86-64-musl) try to link to __stack_chk_fail().
- -nostdlib is not enough, it requires also -fno-stack-protector.
- x86_64-buildroot-linux-gnu/bin/ld: /tmp/ccgBXEoR.o: in function `handle_page_fault':
- kvm_pagefault01.c:(.text+0x5d): undefined reference to `__stack_chk_fail'
- collect2: error: ld returned 1 exit status
- [ upstream status: 1a51aa710 ("kvm: Fix undefined reference to __stack_chk_fail()") ]
- Suggested-by: Martin Doucha <mdoucha@suse.cz>
- Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
- Reviewed-by: Martin Doucha <mdoucha@suse.cz>
- Reviewed-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
- Reviewed-by: Joerg Vehlow <joerg.vehlow@aox-tech.de>
- Tested-by: Joerg Vehlow <joerg.vehlow@aox-tech.de>
- Signed-off-by: Petr Vorel <petr.vorel@gmail.com>
- ---
- testcases/kernel/kvm/Makefile | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
- diff --git a/testcases/kernel/kvm/Makefile b/testcases/kernel/kvm/Makefile
- index 8d5193d8e..c5a09719c 100644
- --- a/testcases/kernel/kvm/Makefile
- +++ b/testcases/kernel/kvm/Makefile
- @@ -9,7 +9,7 @@ ASFLAGS =
- CPPFLAGS += -I$(abs_srcdir)/include
- GUEST_CPPFLAGS = $(CPPFLAGS) -DCOMPILE_PAYLOAD
- GUEST_CFLAGS = -ffreestanding -O2 -Wall -fno-asynchronous-unwind-tables -mno-mmx -mno-sse
- -GUEST_LDFLAGS = -nostdlib -Wl,--build-id=none
- +GUEST_LDFLAGS = -nostdlib -Wl,--build-id=none -fno-stack-protector
- GUEST_LDLIBS =
-
- FILTER_OUT_MAKE_TARGETS := lib_guest lib_host lib_x86
- --
- 2.36.1
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