bde0250f06
On x86 (both i386 and x86_64), the kvm-unit-tests code uses __builtin_reachable, which appeared in gcc 4.5. This commit adds the relevant dependencies to kvm-unit-tests: - on i386, we need gcc 4.5 as the target compiler - on x86-64, we need gcc 4.5 as the host compiler, because we use the host compiler to build kvm-unit-tests for this architecture Fixes: http://autobuild.buildroot.net/results/21340a7e6494e23adb2fe8dc6253ab220c380fec/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
29 lines
1.3 KiB
Plaintext
29 lines
1.3 KiB
Plaintext
config BR2_PACKAGE_KVM_UNIT_TESTS
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bool "kvm-unit-tests"
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select BR2_HOSTARCH_NEEDS_IA32_COMPILER if BR2_x86_64=y
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# on i386 and x86-64, __builtin_reachable is used, so we need
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# gcc 4.5 at least. on i386, we use the target gcc, while on
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# x86-64 we use the host gcc (see .mk file for details)
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depends on BR2_arm || \
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(BR2_i386 && BR2_TOOLCHAIN_GCC_AT_LEAST_4_5) || \
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BR2_powerpc64 || \
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BR2_powerpc64le || \
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(BR2_x86_64 && BR2_HOST_GCC_AT_LEAST_4_5)
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help
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kvm-unit-tests is a project as old as KVM. As its name
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suggests, it's purpose is to provide unit tests for KVM. The
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unit tests are tiny guest operating systems that generally
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execute only tens of lines of C and assembler test code in
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order to obtain its PASS/FAIL result. Unit tests provide KVM
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and virt hardware functional testing by targeting the
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features through minimal implementations of their use per
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the hardware specification. The simplicity of unit tests
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make them easy to verify they are correct, easy to maintain,
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and easy to use in timing measurements. Unit tests are also
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often used for quick and dirty bug reproducers. The
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reproducers may then be kept as regression tests. It's
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strongly encouraged that patches implementing new KVM
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features are submitted with accompanying unit tests.
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http://www.linux-kvm.org/page/KVM-unit-tests
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