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| author | Andre McCurdy <armccurdy@gmail.com> | 2018-04-26 10:57:27 -0700 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2018-05-04 09:54:59 +0100 |
| commit | 8d2f51e9b8d5b27fc61d148a6dd5f6ef5715d6e6 (patch) | |
| tree | 680e8525ccb9b04ae0a7a535d13dd714cbca84bb /meta | |
| parent | fa8f3bda2680d9890ff6d2bc0ce9737a4d40b4f7 (diff) | |
| download | openembedded-core-8d2f51e9b8d5b27fc61d148a6dd5f6ef5715d6e6.tar.gz openembedded-core-8d2f51e9b8d5b27fc61d148a6dd5f6ef5715d6e6.tar.bz2 openembedded-core-8d2f51e9b8d5b27fc61d148a6dd5f6ef5715d6e6.zip | |
tune-corei7.inc: update TUNE_CCARGS -march CPU type corei7 -> nehalem
The gcc "corei7" CPU type was last documented in gcc 4.8.x and has
been undocumented from gcc 4.9.x onwards:
https://gcc.gnu.org/onlinedocs/gcc-4.8.5/gcc/i386-and-x86-64-Options.html
https://gcc.gnu.org/onlinedocs/gcc-4.9.4/gcc/i386-and-x86-64-Options.html
Although it still seems to be accepted by gcc 7.x, it's likely to be
deprecated and removed at some point. To preempt that, switch the
corei7 TUNE_CCARGS -march CPU type to "nehalem", which is the closest
replacement (and matches the CPU type already being passed to qemu).
Since the tune-corei7.inc include file is intended to cover a range
of CPUs from Nehalem onwards, switch the TUNE_CCARGS -mtune option
from "corei7" to "generic", which instructs gcc to produce code
optimized for the most common IA32/AMD64/EM64T processors.
Signed-off-by: Andre McCurdy <armccurdy@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Diffstat (limited to 'meta')
| -rw-r--r-- | meta/conf/machine/include/tune-corei7.inc | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/meta/conf/machine/include/tune-corei7.inc b/meta/conf/machine/include/tune-corei7.inc index 6edfb680e2..9ce731c27a 100644 --- a/meta/conf/machine/include/tune-corei7.inc +++ b/meta/conf/machine/include/tune-corei7.inc @@ -1,7 +1,7 @@ -# Settings for the GCC(1) cpu-type "corei7": +# Settings for the GCC(1) cpu-type "nehalem": # -# Intel Core i7 CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1 -# and SSE4.2 instruction set support. +# Intel Nehalem CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, +# SSE4.2 and POPCNT instruction set support. # # This tune is recommended for Intel Nehalem and Silvermont (e.g. Bay Trail) CPUs # (and beyond). @@ -11,10 +11,9 @@ DEFAULTTUNE ?= "corei7-64" # Pull in the previous tune in to pull in PACKAGE_EXTRA_ARCHS require conf/machine/include/tune-core2.inc - # Extra tune features TUNEVALID[corei7] = "Enable corei7 specific processor optimizations" -TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'corei7', ' -march=corei7 -mtune=corei7 -mfpmath=sse -msse4.2', '', d)}" +TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'corei7', ' -march=nehalem -mtune=generic -mfpmath=sse -msse4.2', '', d)}" # Extra tune selections AVAILTUNES += "corei7-32" |