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authorGravatar Peter Korsgaard <jacmet@sunsite.dk>2010-05-27 14:11:26 +0200
committerGravatar Peter Korsgaard <jacmet@sunsite.dk>2010-05-27 14:11:26 +0200
commitaacfa1803358fa97afc3e2423956d97a9292d60d (patch)
tree1814a5cfe45bc45a117970fab4d07668d6df4bba
parent062cebb08fa9079b39f61144224de2ad2e2e56a6 (diff)
parent0e12aa3e0f9a3a1170196c1f078f633fcbc92568 (diff)
downloadbuildroot-aacfa1803358fa97afc3e2423956d97a9292d60d.tar.gz
buildroot-aacfa1803358fa97afc3e2423956d97a9292d60d.tar.bz2
Merge branch 'graph-dependencies' of git://git.busybox.net/~tpetazzoni/git/buildroot
-rw-r--r--Makefile3
-rw-r--r--fs/common.mk3
-rw-r--r--package/Makefile.package.in3
-rwxr-xr-xscripts/graph-depends169
4 files changed, 178 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index d59ea45be6..e36b47541a 100644
--- a/Makefile
+++ b/Makefile
@@ -447,6 +447,9 @@ external-deps:
@$(MAKE) -Bs BR2_WGET=$(TOPDIR)/toolchain/wget-show-external-deps.sh \
SPIDER=--spider source
+show-targets:
+ @echo $(TARGETS)
+
ifeq ($(BR2_CONFIG_CACHE),y)
# drop configure cache if configuration is changed
$(BUILD_DIR)/tgt-config.cache: .config
diff --git a/fs/common.mk b/fs/common.mk
index a3248c165d..50dc974259 100644
--- a/fs/common.mk
+++ b/fs/common.mk
@@ -57,6 +57,9 @@ ifeq ($$(BR2_TARGET_ROOTFS_$(2)_LZMA),y)
$(LZMA) -9 -c $$@ > $$@.lzma
endif
+$(1)-root-show-depends:
+ @echo $(ROOTFS_$(2)_DEPENDENCIES) host-fakeroot host-makedevs $(if $(BR2_TARGET_ROOTFS_$(2)_LZMA),host-lzma)
+
$(1)-root: $(BINARIES_DIR)/rootfs.$(1)
ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y)
diff --git a/package/Makefile.package.in b/package/Makefile.package.in
index c2f86c7bed..cdf49f8fef 100644
--- a/package/Makefile.package.in
+++ b/package/Makefile.package.in
@@ -338,6 +338,9 @@ $(1)-extract: $(1)-depends \
$(1)-depends: $(1)-source $$($(2)_DEPENDENCIES)
+$(1)-show-depends:
+ @echo $$($(2)_DEPENDENCIES)
+
$(1)-source: $$($(2)_TARGET_SOURCE)
$(1)-uninstall: $(1)-configure $$($(2)_TARGET_UNINSTALL)
diff --git a/scripts/graph-depends b/scripts/graph-depends
new file mode 100755
index 0000000000..4d82282f50
--- /dev/null
+++ b/scripts/graph-depends
@@ -0,0 +1,169 @@
+#!/usr/bin/python
+
+# Usage (the graphviz package must be installed in your distribution)
+# ./scripts/graph-depends [package-name] > test.dot
+# dot -Tpdf test.dot -o test.pdf
+#
+# With no arguments, graph-depends will draw a complete graph of
+# dependencies for the current configuration. With an argument,
+# graph-depends will draw a graph of dependencies for the given
+# package name.
+#
+# Limitations
+#
+# * Some packages have dependencies that depend on the Buildroot
+# configuration. For example, many packages have a dependency on
+# openssl if openssl has been enabled. This tool will graph the
+# dependencies as they are with the current Buildroot
+# configuration.
+#
+# * The X.org package definitions are only included when
+# BR2_PACKAGE_XORG7 is enabled, so if this option is not enabled,
+# it isn't possible to graph the dependencies of X.org stack
+# components.
+#
+# Copyright (C) 2010 Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+
+import sys
+import subprocess
+
+# In FULL_MODE, we draw the full dependency graph for all selected
+# packages
+FULL_MODE = 1
+
+# In PKG_MODE, we only draw the dependency graph for a given package
+PKG_MODE = 2
+
+mode = 0
+
+if len(sys.argv) == 1:
+ mode = FULL_MODE
+elif len(sys.argv) == 2:
+ mode = PKG_MODE
+ rootpkg = sys.argv[1]
+else:
+ print "Usage: graph-depends [package-name]"
+ sys.exit(1)
+
+allpkgs = []
+unknownpkgs = []
+
+# Execute the "make show-targets" command to get the list of the main
+# Buildroot TARGETS and return it formatted as a Python list. This
+# list is used as the starting point for full dependency graphs
+def get_targets():
+ sys.stderr.write("Getting targets\n")
+ cmd = ["make", "show-targets"]
+ p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ output = p.communicate()[0].strip()
+ if p.returncode != 0:
+ return None
+ if output == '':
+ return []
+ return output.split(' ')
+
+# Execute the "make <pkg>-show-depends" command to get the list of
+# dependencies of a given package, and return the list of dependencies
+# formatted as a Python list.
+def get_depends(pkg):
+ sys.stderr.write("Getting dependencies for %s\n" % pkg)
+ cmd = ["make", "%s-show-depends" % pkg]
+ p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+ output = p.communicate()[0].strip()
+ if p.returncode != 0:
+ return None
+ if output == '':
+ return []
+ return output.split(' ')
+
+# Recursive function that builds the tree of dependencies for a given
+# package. The dependencies are built in a list called 'dependencies',
+# which contains tuples of the form (pkg1 ->
+# pkg2_on_which_pkg1_depends) and the function finally returns this
+# list.
+def get_all_depends(pkg):
+ dependencies = []
+
+ # We already have the dependencies for this package
+ if pkg in allpkgs:
+ return
+ allpkgs.append(pkg)
+ depends = get_depends(pkg)
+
+ # We couldn't get the dependencies of this package, because it
+ # doesn't use the generic or autotools infrastructure. Add it to
+ # unknownpkgs so that it is later rendered in red color to warn
+ # the user.
+ if depends == None:
+ unknownpkgs.append(pkg)
+ return
+
+ # This package has no dependency.
+ if depends == []:
+ return
+
+ # Add dependencies to the list of dependencies
+ for dep in depends:
+ dependencies.append((pkg, dep))
+
+ # Recurse into the dependencies
+ for dep in depends:
+ newdeps = get_all_depends(dep)
+ if newdeps != None:
+ dependencies += newdeps
+
+ return dependencies
+
+# The Graphviz "dot" utility doesn't like dashes in node names. So for
+# node names, we strip all dashes.
+def pkg_node_name(pkg):
+ return pkg.replace("-","")
+
+# In full mode, start with the result of get_targets() to get the main
+# targets and then use get_all_depends() for each individual target.
+if mode == FULL_MODE:
+ targets = get_targets()
+ dependencies = []
+ allpkgs.append('all')
+ for tg in targets:
+ # Skip uninteresting targets
+ if tg == 'target-generic-issue' or \
+ tg == 'target-finalize' or \
+ tg == 'erase-fakeroots' or \
+ tg == 'target-generic-hostname':
+ continue
+ dependencies.append(('all', tg))
+ deps = get_all_depends(tg)
+ if deps != None:
+ dependencies += deps
+
+# In pkg mode, start directly with get_all_depends() on the requested
+# package
+elif mode == PKG_MODE:
+ dependencies = get_all_depends(rootpkg)
+
+# Start printing the graph data
+print "digraph G {"
+
+# First, the dependencies. Usage of set allows to remove duplicated
+# dependencies in the graph
+for dep in set(dependencies):
+ print "%s -> %s" % (pkg_node_name(dep[0]), pkg_node_name(dep[1]))
+
+# Then, the node attributes: color, style and label.
+for pkg in allpkgs:
+ if pkg == 'all':
+ print "all [label = \"ALL\"]"
+ print "all [color=lightblue,style=filled]"
+ continue
+
+ print "%s [label = \"%s\"]" % (pkg_node_name(pkg), pkg)
+
+ if pkg in unknownpkgs:
+ print "%s [color=red,style=filled]" % pkg_node_name(pkg)
+ elif mode == PKG_MODE and pkg == rootpkg:
+ print "%s [color=lightblue,style=filled]" % pkg_node_name(rootpkg)
+ else:
+ print "%s [color=grey,style=filled]" % pkg_node_name(pkg)
+
+print "}"