aarch-arm64: Update tune files

arch-arm64 is the base tune file for aarch64.  Update this to allow the
system to work with both aarch32 and aarch64 (multilib).

arch-armv8 is for compatibility, it simply uses the base config for now.

feature-arm-thumb was updated, since aarch64 mode does NOT have thumb support.
We should only be processing warnings and additional arguments if thumb
support is enabled on the processor core.

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 44 insertions, 23 deletions

diff --git a/meta/conf/machine/include/arm/arch-arm64.inc b/meta/conf/machine/include/arm/arch-arm64.inc
new file mode 100644
index 0000000000..5376b87dd6
--- /dev/null
+++ b/meta/conf/machine/include/arm/arch-arm64.inc
@@ -0,0 +1,36 @@
+DEFAULTTUNE ?= "aarch64"
+
+require conf/machine/include/arm/arch-armv7a.inc
+
+TUNEVALID[aarch64] = "Enable instructions for aarch64"
+
+MACHINEOVERRIDES .= "${@bb.utils.contains("TUNE_FEATURES", "aarch64", ":aarch64", "" ,d)}"
+
+# Little Endian base configs
+AVAILTUNES += "aarch64 aarch64_be"
+ARMPKGARCH_tune-aarch64 ?= "aarch64"
+ARMPKGARCH_tune-aarch64_be ?= "aarch64_be"
+TUNE_FEATURES_tune-aarch64 ?= "aarch64"
+TUNE_FEATURES_tune-aarch64_be ?= "${TUNE_FEATURES_tune-aarch64} bigendian"
+BASE_LIB_tune-aarch64 = "lib64"
+BASE_LIB_tune-aarch64_be = "lib64"
+
+PACKAGE_EXTRA_ARCHS_tune-aarch64 = "aarch64"
+PACKAGE_EXTRA_ARCHS_tune-aarch64_be = "aarch64_be"
+
+ARMPKGSFX_ENDIAN_64 = "${@bb.utils.contains("TUNE_FEATURES", "bigendian", "_be", "", d)}"
+TUNE_ARCH_64 = "aarch64${ARMPKGSFX_ENDIAN_64}"
+TUNE_PKGARCH_64 = "aarch64${ARMPKGSFX_ENDIAN_64}"
+ABIEXTENSION_64 = ""
+TARGET_FPU_64 = ""
+
+# Duplicated from arch-arm.inc
+TUNE_ARCH_32 = "${@bb.utils.contains("TUNE_FEATURES", "bigendian", "armeb", "arm", d)}"
+TUNE_PKGARCH_32 = "${ARMPKGARCH}${ARMPKGSFX_THUMB}${ARMPKGSFX_DSP}${ARMPKGSFX_EABI}${ARMPKGSFX_ENDIAN}${ARMPKGSFX_FPU}"
+ABIEXTENSION_32 = "eabi"
+TARGET_FPU_32 = "${@d.getVar('ARMPKGSFX_FPU', True).strip('-') or 'soft'}"
+
+TUNE_ARCH = "${@bb.utils.contains("TUNE_FEATURES", "aarch64", "${TUNE_ARCH_64}", "${TUNE_ARCH_32}" ,d)}"
+TUNE_PKGARCH = "${@bb.utils.contains("TUNE_FEATURES", "aarch64", "${TUNE_PKGARCH_64}", "${TUNE_PKGARCH_32}" ,d)}"
+ABIEXTENSION = "${@bb.utils.contains("TUNE_FEATURES", "aarch64", "${ABIEXTENSION_64}", "${ABIEXTENSION_32}" ,d)}"
+TARGET_FPU = "${@bb.utils.contains("TUNE_FEATURES", "aarch64", "${TARGET_FPU_64}", "${TARGET_FPU_32}" ,d)}"
diff --git a/meta/conf/machine/include/arm/arch-armv8.inc b/meta/conf/machine/include/arm/arch-armv8.inc
index c86142ab47..5e832fae6d 100644
--- a/meta/conf/machine/include/arm/arch-armv8.inc
+++ b/meta/conf/machine/include/arm/arch-armv8.inc
@@ -1,20 +1 @@
-DEFAULTTUNE ?= "aarch64"
-
-ARMPKGARCH ?= "aarch64"
-
-TUNEVALID[aarch64] = "Enable instructions for aarch64"
-TUNEVALID[bigendian] = "Enable big-endian mode."
-TUNECONFLICTS[aarch64] = ""
-MACHINEOVERRIDES .= "${@bb.utils.contains("TUNE_FEATURES", "aarch64", ":aarch64", "" ,d)}"
-
-# Little Endian base configs
-AVAILTUNES += "aarch64 aarch64_be"
-TUNE_FEATURES_tune-aarch64 ?= "aarch64"
-TUNE_FEATURES_tune-aarch64_be ?= "${TUNE_FEATURES_tune-aarch64} bigendian"
-
-ARMPKGSFX_ENDIAN = "${@bb.utils.contains("TUNE_FEATURES", "bigendian", "_be", "", d)}"
-
-TUNE_ARCH = "aarch64${ARMPKGSFX_ENDIAN}"
-TUNE_PKGARCH = "aarch64${ARMPKGSFX_ENDIAN}"
-
-PACKAGE_EXTRA_ARCHS = "aarch64${ARMPKGSFX_ENDIAN}"
+require conf/machine/include/arm/arch-arm64.inc
diff --git a/meta/conf/machine/include/arm/feature-arm-thumb.inc b/meta/conf/machine/include/arm/feature-arm-thumb.inc
index a94386f577..8e6619d1b5 100644
--- a/meta/conf/machine/include/arm/feature-arm-thumb.inc
+++ b/meta/conf/machine/include/arm/feature-arm-thumb.inc
@@ -18,6 +18,8 @@ ARM_THUMB_SUFFIX .= "${@bb.utils.contains('TUNE_FEATURES', 'armv7m', 't2', '', d
 # some recipe explicitly sets ARM_INSTRUCTION_SET to "arm"
 ARM_M_OPT = "${@bb.utils.contains('TUNE_FEATURES', 'arm', '${ARM_THUMB_OPT}', 'thumb', d)}"
 python () {
+    if bb.utils.contains('TUNE_FEATURES', 'thumb', 'False', 'True', d):
+        return
     selected = d.getVar('ARM_INSTRUCTION_SET', True)
     if selected == None:
         return
@@ -37,8 +39,10 @@ ARMPKGSFX_THUMB .= "${@bb.utils.contains('TUNE_FEATURES', 'thumb', '${ARM_THUMB_
 # arm system and vice versa. It is strongly recommended that DISTROs not
 # turn this off - the actual cost is very small.
 TUNEVALID[no-thumb-interwork] = "Disable mixing of thumb and ARM functions"
-TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'no-thumb-interwork', ' -mno-thumb-interwork', ' -mthumb-interwork', d)}"
-OVERRIDES .= "${@bb.utils.contains('TUNE_FEATURES', 'no-thumb-interwork', ':thumb-interwork', '', d)}"
+THUMB_TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'no-thumb-interwork', ' -mno-thumb-interwork', ' -mthumb-interwork', d)}"
+THUMB_OVERRIDES .= "${@bb.utils.contains('TUNE_FEATURES', 'no-thumb-interwork', ':thumb-interwork', '', d)}"
+TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'thumb', ' ${THUMB_TUNE_CCARGS}', '', d)}"
+OVERRIDES .= "${@bb.utils.contains('TUNE_FEATURES', 'thumb', ' ${THUMB_OVERRIDES}', '', d)}"
 
 # what about armv7m devices which don't support -marm (e.g. Cortex-M3)?
-TARGET_CC_KERNEL_ARCH += "-mno-thumb-interwork -marm"
+TARGET_CC_KERNEL_ARCH += "${@bb.utils.contains('TUNE_FEATURES', 'thumb', '-mno-thumb-interwork -marm', '', d)}"