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authorAndre McCurdy <armccurdy@gmail.com>2018-04-26 10:57:27 -0700
committerRichard Purdie <richard.purdie@linuxfoundation.org>2018-05-04 13:28:05 +0100
commit101c65d59ed9c85ab2cdc8d5ca44a3afb8f00e98 (patch)
tree3df45901c8ba42f7cbf9712b3e8a24dbb218a34a /meta/conf/machine
parent5c526c37ff54117eaaa0fecc3ac973312e724f1c (diff)
downloadpoky-101c65d59ed9c85ab2cdc8d5ca44a3afb8f00e98.tar.gz
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. (From OE-Core rev: 8d2f51e9b8d5b27fc61d148a6dd5f6ef5715d6e6) Signed-off-by: Andre McCurdy <armccurdy@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/conf/machine')
-rw-r--r--meta/conf/machine/include/tune-corei7.inc9
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 @@
1# Settings for the GCC(1) cpu-type "corei7": 1# Settings for the GCC(1) cpu-type "nehalem":
2# 2#
3# Intel Core i7 CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1 3# Intel Nehalem CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
4# and SSE4.2 instruction set support. 4# SSE4.2 and POPCNT instruction set support.
5# 5#
6# This tune is recommended for Intel Nehalem and Silvermont (e.g. Bay Trail) CPUs 6# This tune is recommended for Intel Nehalem and Silvermont (e.g. Bay Trail) CPUs
7# (and beyond). 7# (and beyond).
@@ -11,10 +11,9 @@ DEFAULTTUNE ?= "corei7-64"
11# Pull in the previous tune in to pull in PACKAGE_EXTRA_ARCHS 11# Pull in the previous tune in to pull in PACKAGE_EXTRA_ARCHS
12require conf/machine/include/tune-core2.inc 12require conf/machine/include/tune-core2.inc
13 13
14
15# Extra tune features 14# Extra tune features
16TUNEVALID[corei7] = "Enable corei7 specific processor optimizations" 15TUNEVALID[corei7] = "Enable corei7 specific processor optimizations"
17TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'corei7', ' -march=corei7 -mtune=corei7 -mfpmath=sse -msse4.2', '', d)}" 16TUNE_CCARGS .= "${@bb.utils.contains('TUNE_FEATURES', 'corei7', ' -march=nehalem -mtune=generic -mfpmath=sse -msse4.2', '', d)}"
18 17
19# Extra tune selections 18# Extra tune selections
20AVAILTUNES += "corei7-32" 19AVAILTUNES += "corei7-32"