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af39b83e58
Enable branch protection (PAC/BTI) for all aarch64 builds. This was previously enabled at a global level in the GCC build, but that breaks the gcc test suite. (From OE-Core rev: 8905639d1cdc5ce809cc5ecd9672f5e86bf8a579) Signed-off-by: Ross Burton <ross.burton@arm.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
45 lines
2.0 KiB
PHP
45 lines
2.0 KiB
PHP
DEFAULTTUNE ?= "aarch64"
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require conf/machine/include/arm/arch-armv7ve.inc
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TUNEVALID[aarch64] = "Enable instructions for aarch64"
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TUNECONFLICTS[aarch64] = "armv4 armv5 armv6 armv7 armv7a"
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MACHINEOVERRIDES =. "${@bb.utils.contains('TUNE_FEATURES', 'aarch64', 'aarch64:', '', d)}"
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# Little Endian base configs
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AVAILTUNES += "aarch64 aarch64_be"
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ARMPKGARCH:tune-aarch64 ?= "aarch64"
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ARMPKGARCH:tune-aarch64_be ?= "aarch64"
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TUNE_FEATURES:tune-aarch64 = "aarch64"
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TUNE_FEATURES:tune-aarch64_be = "${TUNE_FEATURES:tune-aarch64} bigendian"
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TUNE_PKGARCH_64:tune-aarch64 = "aarch64"
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TUNE_PKGARCH_64:tune-aarch64_be = "aarch64_be"
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BASE_LIB:tune-aarch64 = "lib64"
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BASE_LIB:tune-aarch64_be = "lib64"
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PACKAGE_EXTRA_ARCHS:tune-aarch64 = "aarch64"
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PACKAGE_EXTRA_ARCHS:tune-aarch64_be = "aarch64_be"
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ARMPKGSFX_ENDIAN_64 = "${@bb.utils.contains('TUNE_FEATURES', 'bigendian', '_be', '', d)}"
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TUNE_ARCH_64 = "aarch64${ARMPKGSFX_ENDIAN_64}"
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TUNE_PKGARCH_64 = "${ARMPKGARCH}${ARMPKGSFX_ENDIAN_64}"
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ABIEXTENSION_64 = ""
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TARGET_FPU_64 = ""
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# Duplicated from arch-arm.inc
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TUNE_ARCH_32 = "${@bb.utils.contains('TUNE_FEATURES', 'bigendian', 'armeb', 'arm', d)}"
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TUNE_PKGARCH_32 = "${ARMPKGARCH}${ARMPKGSFX_THUMB}${ARMPKGSFX_DSP}${ARMPKGSFX_EABI}${ARMPKGSFX_ENDIAN}${ARMPKGSFX_FPU}"
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ABIEXTENSION_32 = "eabi"
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TARGET_FPU_32 = "${@d.getVar('TUNE_CCARGS_MFLOAT') or 'soft'}"
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TUNE_ARCH = "${@bb.utils.contains('TUNE_FEATURES', 'aarch64', '${TUNE_ARCH_64}', '${TUNE_ARCH_32}', d)}"
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TUNE_PKGARCH = "${@bb.utils.contains('TUNE_FEATURES', 'aarch64', '${TUNE_PKGARCH_64}', '${TUNE_PKGARCH_32}', d)}"
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ABIEXTENSION = "${@bb.utils.contains('TUNE_FEATURES', 'aarch64', '${ABIEXTENSION_64}', '${ABIEXTENSION_32}', d)}"
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TARGET_FPU = "${@bb.utils.contains('TUNE_FEATURES', 'aarch64', '${TARGET_FPU_64}', '${TARGET_FPU_32}', d)}"
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# Emit branch protection (PAC/BTI) instructions. On hardware that doesn't
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# support these they're meaningless NOP instructions, so there's very little
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# reason not to.
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TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'aarch64', ' -mbranch-protection=standard', '', d)}"
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