Hi,
Here is an updated version of this patch for xen-unstable.hg 9960.
Please consider it for inclusion.
--
Horms http://www.vergenet.net/~horms/
build: make linux download more flexible
* Allow LINUX_REPO to specify the URL of the repository for the linux kernel,
- Defaults is: http://www.kernel.org/pub/linux/kernel/
* Allow LINUX_REPO to be overridden in the environment
* LINUX_REPO it should be the path, trimmed to give a structure
equivalent to http://www.kernel.org/pub/linux/kernel/
- The kernel tarball will be downloaded from
$(LINUX_REPO)/v$(KERNEL_MAJOR).$(KERNEL_MINOR)/
e.g. http://www.kernel.org/pub/linux/kernel/v2.6
Where KERNEL_MAJOR and KERNEL_MINOR are calculated at runtime
- The path of the tarball can be overridden using LINUX_REPO_KERNEL_PATH
in the environment, in which case the tarball will be downloaded from
$(LINUX_REPO)/v$(LINUX_REPO_KERNEL_PATH)/
- If needed kernel patches will be downloaded from
$(LINUX_REPO)/v$(KERNEL_MAJOR).$(KERNEL_MINOR)/snapshots
if present, else
$(LINUX_REPO)/v$(KERNEL_MAJOR).$(KERNEL_MINOR)/testing
This will depend on the version of the patch
- The path of the tarball can be overridden using LINUX_REPO_KERNEL_PATH
in the environment, in which case the patch will be downloaded from
$(LINUX_REPO)/v$(LINUX_REPO_PATCH_PATH)/
- The intention of LINUX_REPO_KERNEL_PATH and LINUX_REPO_PATCH_PATH
is to allow for sites that don't follow the directory hierarchy of
kernel.org, while simplifying the presumably common case where they do
* Previously KERNEL_REPO had similar properties to LINUX_REPO, but
it was not as flexible, had a somewhat presumptuous name and could
not be overridden in the environment. It has been removed
* Allow DOWNLOAD_PATH to set a search path for previously downloaded files
- Use the first element of the path as the directory to save
downloaded files
- Default is LINUX_SRC_PATH if set in environment, else .:..
- Note that kclean-tarball, makedistlcean-* and friends
intentionally only remove tarballs in the top level xen directory,
regardless of the value of this variable. This is to allow
more persistent storage of tarballs in a specified location,
which cam be manually cleaned if desired.
* Fix bug introduced by xen-unstable.hg:9931:39fa9a75d84b whereby
the downloaded kernel source is not removed on mrproper
Signed-Off-By: Horms <horms@xxxxxxxxxxxx>
Config.mk | 12 ++++++++++-
Makefile | 14 +++++++++++++
buildconfigs/Rules.mk | 44 ++++++++++++++++++++++++++++++++---------
buildconfigs/mk.linux-2.6-xen | 4 ++-
4 files changed, 63 insertions(+), 11 deletions(-)
--- x/Config.mk
+++ x/Config.mk
@@ -69,7 +69,17 @@ LDFLAGS += $(foreach i, $(EXTRA_LIB), -L
CFLAGS += $(foreach i, $(EXTRA_INCLUDES), -I$(i))
# Choose the best mirror to download linux kernel
-KERNEL_REPO = http://www.kernel.org
+DOWNLOAD_PATH_DEFAULT := .:..
+LINUX_REPO_DEFAULT := http://www.kernel.org/pub/linux/kernel/
+ifdef LINUX_SRC_PATH
+DOWNLOAD_PATH ?= $(LINUX_SRC_PATH) # Compatibility
+else
+DOWNLOAD_PATH ?= $(DOWNLOAD_PATH_DEFAULT)
+endif
+DOWNLOAD_DIR := $(firstword $(subst :, ,$(DOWNLOAD_PATH)))
+LINUX_REPO ?= $(LINUX_REPO_DEFAULT)
+# LINUX_REPO_KERNEL_PATH Set in buildconfigs/Rules.mk, if not in environment
+# LINUX_REPO_PATCH_PATH Set in buildconfigs/Rules.mk, if not in environment
# If ACM_SECURITY = y, then the access control module is compiled
# into Xen and the policy type can be set by the boot policy file
--- x/Makefile
+++ x/Makefile
@@ -172,6 +172,20 @@ help:
@echo ' install into prefix/lib/python<VERSION>'
@echo ' instead of <PREFIX>/lib/python'
@echo ' true if set to non-empty value, false
otherwise'
+ @echo ' LINUX_REPO=URL - Base URL to download linux kernel from'
+ @echo ' Default: "$(LINUX_REPO_DEFAULT)"'
+ @echo ' LINUX_REPO_KERNEL_PATH=DIRECTORY'
+ @echo ' - LINUX_REPO assumes that the URL has the
same directory'
+ @echo ' structure as $(LINUX_REPO_DEFAULT)'
+ @echo ' and the rest of the path to the tarball is
derived.'
+ @echo ' If set, override the derivation.'
+ @echo ' Default: ""'
+ @echo ' LINUX_REPO_PATCHL_PATH=DIRECTORY'
+ @echo ' - LINUX_REPO assumes that the URL has the
same directory'
+ @echo ' structure as $(LINUX_REPO_DEFAULT)'
+ @echo ' and the rest of the path to the patches is
derived.'
+ @echo ' If set, override the derivation.'
+ @echo ' Default: ""'
# Use this target with extreme care!
.PHONY: uninstall
--- x/buildconfigs/Rules.mk
+++ x/buildconfigs/Rules.mk
@@ -22,32 +22,58 @@ LINUX_SERIES ?= 2.6
LINUX_VER ?= $(shell grep "^LINUX_VER" buildconfigs/mk.linux-2.6-xen |
sed -e 's/.*=[ ]*//')
# Setup Linux search path
-LINUX_SRC_PATH ?= .:..
-vpath linux-%.tar.bz2 $(LINUX_SRC_PATH)
-vpath patch-%.bz2 $(LINUX_SRC_PATH)
+vpath linux-%.tar.bz2 $(DOWNLOAD_PATH)
+vpath patch-%.bz2 $(DOWNLOAD_PATH)
# download a pristine Linux kernel tarball if there isn't one in LINUX_SRC_PATH
+ifndef LINUX_REPO_KERNEL_PATH
linux-%.tar.bz2: override _LINUX_VDIR = $(word 1,$(subst ., ,$*)).$(word
2,$(subst ., ,$*))
+linux-%.tar.bz2: LINUX_REPO_KERNEL_PATH = v$(_LINUX_VDIR)
+endif
linux-%.tar.bz2:
@echo "Cannot find $@ in path $(LINUX_SRC_PATH)"
- wget $(KERNEL_REPO)/pub/linux/kernel/v$(_LINUX_VDIR)/$@ -O./$@
+ wget $(LINUX_REPO)/$(LINUX_REPO_KERNEL_PATH)/$@ -O$(DOWNLOAD_DIR)/$@ \
+ || { rm -f $(DOWNLOAD_DIR)/$@; false; }
+ifndef LINUX_REPO_PATCH_PATH
patch-%.bz2: override _LINUX_VDIR = $(word 1,$(subst ., ,$(*F))).$(word
2,$(subst ., ,$(*F)))
patch-%.bz2: override _LINUX_XDIR = $(if $(word 3,$(subst -,
,$(*F))),snapshots,testing)
+patch-%.bz2: LINUX_REPO_PATCH_PATH = v$(_LINUX_VDIR)/$(_LINUX_XDIR)
+endif
patch-%.bz2:
@echo "Cannot find $(@F) in path $(LINUX_SRC_PATH)"
- wget
$(KERNEL_REPO)/pub/linux/kernel/v$(_LINUX_VDIR)/$(_LINUX_XDIR)/$(@F) -O./$@
+ wget $(LINUX_REPO)/$(LINUX_REPO_PATCH_PATH)/$(@F) \
+ -O$(DOWNLOAD_DIR)/$@ || { rm -f $(DOWNLOAD_DIR)/$@; false; }
pristine-%: pristine-%/.valid-pristine
@true
+
+# unpack-pristine and patch-pristine targets are run in a submake
+# so that vpath is re-evaluated. This is important for the case
+# where the files are dowloaded this time around, and they are downloaded
+# into an alternate directory, as specified by DOWNLOAD_PATH
+
+unpack-pristine-%-X: %
+ tar -C $(UNPACK_DIR) -jxf $<
+
+patch-pristine-%-X: %
+ echo $<
+ bzcat $< | patch -d $(UNPACK_DIR) -p1
+
+.PHONY: patch-pristine-dummy
+patch-pristine-dummy-X:
-pristine-%/.valid-pristine: %.tar.bz2
+pristine-%/.valid-pristine: $(LINUX_TARBALL) $(LINUX_PATCHES)
rm -rf tmp-pristine-$* $(@D)
mkdir -p tmp-pristine-$*
- tar -C tmp-pristine-$* -jxf $<
- -@rm -f tmp-pristine-$*/pax_global_header
+ @# firstword is used to get rid of any whitespace
+ $(MAKE) UNPACK_DIR=tmp-pristine-$* \
+ unpack-pristine-$(firstword $(LINUX_TARBALL))-X
+ -rm -f tmp-pristine-$*/pax_global_header
mv tmp-pristine-$*/* $(@D)
- @rm -rf tmp-pristine-$*
+ rm -rf tmp-pristine-$*
+ $(MAKE) KERNELS=linux-2.6-xen UNPACK_DIR=pristine-$* \
+ $(patsubst %, patch-pristine-%-X, dummy $(LINUX_PATCHES))
touch $(@D)/.hgskip
touch $@ # update timestamp to avoid rebuild
--- x/buildconfigs/mk.linux-2.6-xen
+++ x/buildconfigs/mk.linux-2.6-xen
@@ -1,5 +1,7 @@
LINUX_SERIES = 2.6
LINUX_VER = 2.6.16.13
+LINUX_TARBALL = linux-2.6.16.13.tar.bz2 # Only one makes sense
+#LINUX_PATCHES = patch-2.6.17-rcN.bz2 # Usually zero or one patch
EXTRAVERSION ?= xen
@@ -57,4 +59,4 @@ delete:
.PHONY: mrpropper
mrpropper:
- rm -f $(LINUX_SRCS)
+ rm -f $(LINUX_TARBALL) $(LINUX_PATCHES)
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