From cad462a63a79438f1666b41a61631de2de4a6163 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Wed, 29 Jun 2011 20:36:07 -0700
Subject: Only create soname symlinks in global libdirs.

This prevents false positives for private libraries installed by
pre-built packages under /opt.
---
 pym/portage/package/ebuild/doebuild.py      | 39 +++++++++++++++++++++++++++++
 pym/portage/util/__init__.py                |  7 +++---
 pym/portage/util/_dyn_libs/LinkageMapELF.py |  2 +-
 3 files changed, 44 insertions(+), 4 deletions(-)

(limited to 'pym')

diff --git a/pym/portage/package/ebuild/doebuild.py b/pym/portage/package/ebuild/doebuild.py
index 35a0b0ffa..4b4eaecad 100644
--- a/pym/portage/package/ebuild/doebuild.py
+++ b/pym/portage/package/ebuild/doebuild.py
@@ -1646,6 +1646,43 @@ def _post_src_install_soname_symlinks(mysettings, out):
 			raise
 		return
 
+	libpaths = set(portage.util.getlibpaths(
+		mysettings["ROOT"], env=mysettings))
+	libpath_inodes = set()
+	for libpath in libpaths:
+		libdir = os.path.join(mysettings["ROOT"], libpath.lstrip(os.sep))
+		try:
+			s = os.stat(libdir)
+		except OSError:
+			continue
+		else:
+			libpath_inodes.add((s.st_dev, s.st_ino))
+
+	is_libdir_cache = {}
+
+	def is_libdir(obj_parent):
+		try:
+			return is_libdir_cache[obj_parent]
+		except KeyError:
+			pass
+
+		rval = False
+		if obj_parent in libpaths:
+			rval = True
+		else:
+			parent_path = os.path.join(mysettings["ROOT"],
+				obj_parent.lstrip(os.sep))
+			try:
+				s = os.stat(parent_path)
+			except OSError:
+				pass
+			else:
+				if (s.st_dev, s.st_ino) in libpath_inodes:
+					rval = True
+
+		is_libdir_cache[obj_parent] = rval
+		return rval
+
 	missing_symlinks = []
 
 	# Parse NEEDED.ELF.2 like LinkageMapELF.rebuild() does.
@@ -1663,6 +1700,8 @@ def _post_src_install_soname_symlinks(mysettings, out):
 		obj, soname = fields[1:3]
 		if not soname:
 			continue
+		if not is_libdir(os.path.dirname(obj)):
+			continue
 
 		obj_file_path = os.path.join(image_dir, obj.lstrip(os.sep))
 		sym_file_path = os.path.join(os.path.dirname(obj_file_path), soname)
diff --git a/pym/portage/util/__init__.py b/pym/portage/util/__init__.py
index 31a808b0c..f877362cd 100644
--- a/pym/portage/util/__init__.py
+++ b/pym/portage/util/__init__.py
@@ -1567,11 +1567,12 @@ def find_updated_config_files(target_root, config_protect):
 					else:
 						yield (x, None)
 
-def getlibpaths(root):
+def getlibpaths(root, env=None):
 	""" Return a list of paths that are used for library lookups """
-
+	if env is None:
+		env = os.environ
 	# the following is based on the information from ld.so(8)
-	rval = os.environ.get("LD_LIBRARY_PATH", "").split(":")
+	rval = env.get("LD_LIBRARY_PATH", "").split(":")
 	rval.extend(grabfile(os.path.join(root, "etc", "ld.so.conf")))
 	rval.append("/usr/lib")
 	rval.append("/lib")
diff --git a/pym/portage/util/_dyn_libs/LinkageMapELF.py b/pym/portage/util/_dyn_libs/LinkageMapELF.py
index fef75b62c..4b23421bb 100644
--- a/pym/portage/util/_dyn_libs/LinkageMapELF.py
+++ b/pym/portage/util/_dyn_libs/LinkageMapELF.py
@@ -175,7 +175,7 @@ class LinkageMapELF(object):
 		root = self._root
 		root_len = len(root) - 1
 		self._clear_cache()
-		self._defpath.update(getlibpaths(self._root))
+		self._defpath.update(getlibpaths(self._root, env=self._dbapi.settings))
 		libs = self._libs
 		obj_properties = self._obj_properties
 
-- 
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