pci_drivers/cpu_drivers: Fix constructed arrays on x86_64
The __pci_driver and __cpu_driver uses variable length arrays which are constructed by the linker at build-time. The linker always place the structs at 16-byte boundary, as per "System V ABI". That's not a problem on x86, as the struct is exactly 16 Bytes in size. On other platforms, like x86_64 it breaks, because the default data alignment isn't SysV compatible. Set -malign-data=abi to make x86_64 gcc use the SysV psABI. Fixes broken __pci_driver and __cpu_driver on x86_64. Change-Id: I2491d47ed03dcfd8db110dfb181b2c5281449591 Signed-off-by: Patrick Rudolph <siro@das-labor.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/30116 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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@ -238,7 +238,7 @@ EOF
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# to use i586 instead.
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# to use i586 instead.
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if [ "${TARCH}" = "x86_64" ]; then
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if [ "${TARCH}" = "x86_64" ]; then
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cat <<EOF
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cat <<EOF
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GCC_CFLAGS_${TARCH} += -march=nocona
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GCC_CFLAGS_${TARCH} += -march=nocona -malign-data=abi
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EOF
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EOF
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fi
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fi
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