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