From: Richard Purdie <richard.purdie@linuxfoundation.org>
Date: Tue, 26 May 2015 10:42:26 +0000 (+0100)
Subject: bitbake.conf: Use immediate expansion for os.uname()
X-Git-Tag: yocto-4.0~25780
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=03482382b797f3501c3fb0df0fe12bd4e5e51a39;p=thirdparty%2Fopenembedded%2Fopenembedded-core-contrib.git

bitbake.conf: Use immediate expansion for os.uname()

Use immediate expansion for BUILD_ARCH and BUILD_OS since there is no
point in repeatedly calling os.uname() throughout parsing. This is
worth around 2% of parsing time, small but measurable.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
---

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 9c72044d8d6..2b86442b1d9 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -81,8 +81,10 @@ ROOT_HOME ??= "/home/root"
 # Architecture-dependent build variables.
 ##################################################################
 
-BUILD_ARCH = "${@os.uname()[4]}"
-BUILD_OS = "${@os.uname()[0].lower()}"
+# Immediate expansion since there is no point in reapeatedly calling
+# os.uname() throughout parsing
+BUILD_ARCH := "${@os.uname()[4]}"
+BUILD_OS := "${@os.uname()[0].lower()}"
 BUILD_VENDOR = ""
 BUILD_SYS = "${BUILD_ARCH}${BUILD_VENDOR}-${BUILD_OS}"
 BUILD_PREFIX = ""