Pull request for branch for-2011.11/toolchain-copy-opt

The following changes since commit d1dd9588ae76d8c9b79a39af182a45e54ac356dd:

news.html: fix 2011.08 release date (2011-08-31 14:23:26 +0200)

are available in the git repository at:
http://free-electrons.com/~thomas/buildroot.git for-2011.11/toolchain-copy-opt

Thomas Petazzoni (1):
external toolchain: slightly optimize the copy of the toolchain sysroot

 toolchain/helpers.mk |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

Thanks,

Thomas Petazzoni

The sysroot of an ARM CodeSourcery toolchain takes about 1.4 GB of space, but 1.1+ GB of this space consists in locale-related information which Buildroot doesn't use. By skipping the copy of those unused files, we save quite a bit of time while importing the toolchain sysroot.

---
 toolchain/helpers.mk |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

index 4d90d15..7f3efaa 100644
@@ -79,6 +79,9 @@ copy_toolchain_lib_root = \
 #    non-default architecture variant is used. Without this, the
 #    compiler fails to find libraries and headers.
 #
+# Note that the 'locale' directories are not copied. They are huge
+# (400+MB) in CodeSourcery toolchains, and they are not really useful.
+#
 # $1: main sysroot directory of the toolchain
 # $2: arch specific sysroot directory of the toolchain
 # $3: arch specific subdirectory in the sysroot

@@ -89,7 +92,7 @@ copy_toolchain_sysroot = \
 	ARCH_SUBDIR="$(strip $3)"; \
 	for i in etc lib sbin usr ; do \
 		if [ -d $${ARCH_SYSROOT_DIR}/$$i ] ; then \
-			cp -a $${ARCH_SYSROOT_DIR}/$$i $(STAGING_DIR)/ ; \
+			rsync -au --exclude 'usr/lib/locale' $${ARCH_SYSROOT_DIR}/$$i $(STAGING_DIR)/ ; \
 		fi ; \
 	done ; \
 	if [ `readlink -f $${SYSROOT_DIR}` != `readlink -f $${ARCH_SYSROOT_DIR}` ] ; then \

1.7.4.1

Thomas> The sysroot of an ARM CodeSourcery toolchain takes about 1.4 GB of Thomas> space, but 1.1+ GB of this space consists in locale-related Thomas> information which Buildroot doesn't use. By skipping the copy of those Thomas> unused files, we save quite a bit of time while importing the Thomas> toolchain sysroot.

Looks good, except:

Thomas> - cp -a $${ARCH_SYSROOT_DIR}/$$i $(STAGING_DIR)/ ; \
Thomas> + rsync -au --exclude 'usr/lib/locale' $${ARCH_SYSROOT_DIR}/$$i $(STAGING_DIR)/ ; \

We don't currently check for rsync in dependencies.sh - Please add that as well (same for the local package stuff).

Bye, Peter Korsgaard

Le Sun, 18 Sep 2011 23:46:05 -0400,
Milton Soares Filho <[email protected]> a ?crit :

I am at least interested in seeing what you have done, to see what could be integrated in Buildroot.

Thanks!

Thomas

Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com