arch-arm*: add better support for gcc march extensions

GCC has the ability to pass extensions to the march parameter, which
expand the funcationality of the march.  For example
"-march=armv7ve+simd" adds SIMD to ARMv7.  Currently, there is no way to
expand the march setting without modifying each instance, as you can't
guarantee the ordering when using the existing TUNE_CCARGS.  By
introducing two new variables, TUNE_CCARGS_MARCH and
TUNE_CCARGS_MARCH_OPT, we can enforce that these two go together.

Also, expand existing and create new feature files that use these
variables to expand the functionality.

(From OE-Core rev: 794eb617bfd1997e7a3498812c63a20c58a10554)

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 5 deletions

diff --git a/meta/conf/machine/include/arm/arch-armv8a.inc b/meta/conf/machine/include/arm/arch-armv8a.inc
index 819dffbeba..97c944dfa5 100644
--- a/meta/conf/machine/include/arm/arch-armv8a.inc
+++ b/meta/conf/machine/include/arm/arch-armv8a.inc
@@ -1,14 +1,12 @@
 DEFAULTTUNE ?= "armv8a-crc"
 
 TUNEVALID[armv8a] = "Enable instructions for ARMv8-a"
-TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'armv8a', ' -march=armv8-a', '', d)}"
-TUNEVALID[crc] = "Enable instructions for ARMv8-a Cyclic Redundancy Check (CRC)"
-TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'crc', '+crc', '', d)}"
-TUNEVALID[crypto] = "Enable instructions for ARMv8-a cryptographic"
-TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'crypto', '+crypto', '', d)}"
+TUNE_CCARGS_MARCH .= "${@bb.utils.contains('TUNE_FEATURES', 'armv8a', ' -march=armv8-a', '', d)}"
 MACHINEOVERRIDES =. "${@bb.utils.contains('TUNE_FEATURES', 'armv8a', 'armv8a:', '', d)}"
 
 require conf/machine/include/arm/arch-arm64.inc
+require conf/machine/include/arm/feature-arm-crc.inc
+require conf/machine/include/arm/feature-arm-crypto.inc
 
 # Little Endian base configs
 AVAILTUNES += "armv8a armv8a-crc armv8a-crc-crypto armv8a-crypto"