mirror of
https://git.yoctoproject.org/poky
synced 2026-05-04 13:39:49 +02:00
04eac1f2b6
Current include logic goes into generic arm v8/v9 architecture tunes and adds corresponding -march option after synthesizing it from various tune fragments, this is fine for a machine which is using armv8/armv9 based tunes but cortex tunes are intentionally using -mcpu option based on selected tune value. So when cortex based default tune is selected for a machine, it will add both -mcpu and -march to the compiler commandline which can result in invalid combinations for this pair in gcc's own logic. This can then result in compiler warnings/errors reporting this e.g. aarch64-yoe-linux-gcc -mcpu=cortex-a72.cortex-a53 -march=armv8-a+crc+crypto -mbranch-protection=standard ... cc1: error: switch '-mcpu=cortex-a72.cortex-a53' conflicts with '-march=armv8-a+crc+crypto' switch and resulted in options '+crc+crypto' being added [-Werror] This is seen in lot of configure test results in glibc 2.39 and the warning is promoted to errors by gcc in some of these checks especially with gcc-14, the logs also show it as warning in other places in configure checks. mcpu option will compute relevant march implicitly as it specifies a cpu implementation and this will be the right value to use, therefore do not specify -march when -mcpu is already describing the cpu. (From OE-Core rev: e64f0c1b6ac5d598a79a21de5f3060f83cb9523e) Signed-off-by: Khem Raj <raj.khem@gmail.com> Cc: Ross Burton <ross.burton@arm.com> Cc: Jon Mason <jdmason@kudzu.us> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
15 lines
645 B
PHP
15 lines
645 B
PHP
DEFAULTTUNE ?= "octeontx2"
|
|
|
|
TUNEVALID[octeontx2] = "Enable Marvell octeontx2 specific processor optimizations"
|
|
TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'octeontx2', ' -mcpu=octeontx2', '', d)}"
|
|
|
|
require conf/machine/include/arm/arch-armv8-2a.inc
|
|
|
|
# Little Endian base configs
|
|
AVAILTUNES += "octeontx2"
|
|
ARMPKGARCH:tune-octeontx2 = "octeontx2"
|
|
# We do not want -march since -mcpu is added above to cover for it
|
|
TUNE_FEATURES:tune-octeontx2 = "aarch64 crypto octeontx2"
|
|
PACKAGE_EXTRA_ARCHS:tune-octeontx2 = "${PACKAGE_EXTRA_ARCHS:tune-armv8-2a-crypto} octeontx2"
|
|
BASE_LIB:tune-octeontx2 = "lib64"
|