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The kernel 5.5.7 curently used by the test doesn't build with host gcc >= 10 due the gcc default -fno-common. See GCC 10 porting guide [1]. /usr/bin/ld: scripts/dtc/dtc-parser.tab.o:(.bss+0x20): multiple definition of `yylloc'; scripts/dtc/dtc-lexer.lex.o:(.bss+0x0): first defined here But we can't just update this test to the next linux kernel LTS 5.10.y since the minimum gcc version has been updated to gcc 4.9 since 5.8 kernel [2] and the Sourcery CodeBench ARM 2014.05 is used (gcc 4.8 based). Enable arm cortex A9 and VFP support to switch to the ARM arm prebuilt toolchain (the Bootlin toolchain could be used). While at it use the prebuilt buildin kernel for the vexpress target recently updated to 5.10.7. Fixes: https://gitlab.com/kubu93/buildroot/-/jobs/1564202094 [1] https://gcc.gnu.org/gcc-10/porting_to.html [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6ec4476ac82512f09c94aff5972654b70f3772b2 [3] 3cf2782906d5cc05a3966c25518d2ce01f11afc8 Signed-off-by: Romain Naour <romain.naour@gmail.com> Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> (cherry picked from commit e0ad7c641155a06dac385f2ffc4961d6a4e5c1b4) Signed-off-by: Peter Korsgaard <peter@korsgaard.com>